/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/acceleratedInterpolationWernerOverapprox_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product39.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-24 03:37:33,337 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-24 03:37:33,340 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-24 03:37:33,399 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-24 03:37:33,400 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-24 03:37:33,405 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-24 03:37:33,408 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-24 03:37:33,415 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-24 03:37:33,418 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-24 03:37:33,425 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-24 03:37:33,435 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-24 03:37:33,436 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-24 03:37:33,436 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-24 03:37:33,438 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-24 03:37:33,439 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-24 03:37:33,440 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-24 03:37:33,441 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-24 03:37:33,442 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-24 03:37:33,444 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-24 03:37:33,446 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-24 03:37:33,448 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-24 03:37:33,449 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-24 03:37:33,451 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-24 03:37:33,452 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-24 03:37:33,455 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-24 03:37:33,455 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-24 03:37:33,456 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-24 03:37:33,457 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-24 03:37:33,457 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-24 03:37:33,458 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-24 03:37:33,459 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-24 03:37:33,460 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-24 03:37:33,461 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-24 03:37:33,461 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-24 03:37:33,463 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-24 03:37:33,463 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-24 03:37:33,464 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-24 03:37:33,464 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-24 03:37:33,465 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-24 03:37:33,466 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-24 03:37:33,466 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-24 03:37:33,467 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf [2021-02-24 03:37:33,479 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-24 03:37:33,479 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-24 03:37:33,481 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-24 03:37:33,481 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-24 03:37:33,481 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-24 03:37:33,482 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-24 03:37:33,482 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-24 03:37:33,482 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-24 03:37:33,482 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-24 03:37:33,483 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-24 03:37:33,483 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-24 03:37:33,483 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-24 03:37:33,483 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-24 03:37:33,484 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-24 03:37:33,484 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-24 03:37:33,484 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-24 03:37:33,484 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-24 03:37:33,485 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-24 03:37:33,485 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 03:37:33,485 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-24 03:37:33,485 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-24 03:37:33,486 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-24 03:37:33,486 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-24 03:37:33,486 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-24 03:37:33,890 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-24 03:37:33,936 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-24 03:37:33,939 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-24 03:37:33,941 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-24 03:37:33,942 INFO L275 PluginConnector]: CDTParser initialized [2021-02-24 03:37:33,943 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product39.cil.c [2021-02-24 03:37:34,020 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd0b3cd6f/dfd5a5fb7899419dac300c27e94b12f4/FLAG962f05f69 [2021-02-24 03:37:34,637 INFO L306 CDTParser]: Found 1 translation units. [2021-02-24 03:37:34,638 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product39.cil.c [2021-02-24 03:37:34,653 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd0b3cd6f/dfd5a5fb7899419dac300c27e94b12f4/FLAG962f05f69 [2021-02-24 03:37:34,945 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd0b3cd6f/dfd5a5fb7899419dac300c27e94b12f4 [2021-02-24 03:37:34,948 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-24 03:37:34,962 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-24 03:37:34,964 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-24 03:37:34,964 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-24 03:37:34,968 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-24 03:37:34,969 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 03:37:34" (1/1) ... [2021-02-24 03:37:34,970 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43f527b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:37:34, skipping insertion in model container [2021-02-24 03:37:34,970 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 03:37:34" (1/1) ... [2021-02-24 03:37:34,978 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-24 03:37:35,022 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-24 03:37:35,346 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product39.cil.c[15172,15185] [2021-02-24 03:37:35,375 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 03:37:35,388 INFO L203 MainTranslator]: Completed pre-run [2021-02-24 03:37:35,457 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product39.cil.c[15172,15185] [2021-02-24 03:37:35,468 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 03:37:35,524 INFO L208 MainTranslator]: Completed translation [2021-02-24 03:37:35,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:37:35 WrapperNode [2021-02-24 03:37:35,525 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-24 03:37:35,526 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-24 03:37:35,527 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-24 03:37:35,527 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-24 03:37:35,545 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:37:35" (1/1) ... [2021-02-24 03:37:35,546 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:37:35" (1/1) ... [2021-02-24 03:37:35,596 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:37:35" (1/1) ... [2021-02-24 03:37:35,596 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:37:35" (1/1) ... [2021-02-24 03:37:35,638 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:37:35" (1/1) ... [2021-02-24 03:37:35,651 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:37:35" (1/1) ... [2021-02-24 03:37:35,656 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:37:35" (1/1) ... [2021-02-24 03:37:35,664 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-24 03:37:35,665 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-24 03:37:35,665 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-24 03:37:35,666 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-24 03:37:35,666 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:37:35" (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 [2021-02-24 03:37:35,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-24 03:37:35,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-24 03:37:35,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-02-24 03:37:35,861 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-24 03:37:35,861 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-02-24 03:37:35,861 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2021-02-24 03:37:35,861 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2021-02-24 03:37:35,862 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2021-02-24 03:37:35,862 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2021-02-24 03:37:35,862 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2021-02-24 03:37:35,862 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2021-02-24 03:37:35,862 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2021-02-24 03:37:35,863 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2021-02-24 03:37:35,863 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2021-02-24 03:37:35,863 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2021-02-24 03:37:35,863 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-02-24 03:37:35,863 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-02-24 03:37:35,864 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2021-02-24 03:37:35,864 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2021-02-24 03:37:35,864 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2021-02-24 03:37:35,864 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-02-24 03:37:35,864 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-02-24 03:37:35,865 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-02-24 03:37:35,865 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2021-02-24 03:37:35,865 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2021-02-24 03:37:35,865 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2021-02-24 03:37:35,865 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-02-24 03:37:35,865 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2021-02-24 03:37:35,866 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-02-24 03:37:35,866 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-02-24 03:37:35,866 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-02-24 03:37:35,866 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2021-02-24 03:37:35,866 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2021-02-24 03:37:35,866 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2021-02-24 03:37:35,867 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-02-24 03:37:35,867 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2021-02-24 03:37:35,867 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2021-02-24 03:37:35,867 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2021-02-24 03:37:35,867 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-24 03:37:35,868 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2021-02-24 03:37:35,868 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-24 03:37:35,868 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-24 03:37:35,868 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-24 03:37:35,868 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-24 03:37:35,868 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-24 03:37:35,869 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-02-24 03:37:35,869 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-02-24 03:37:35,869 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2021-02-24 03:37:35,869 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2021-02-24 03:37:35,869 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2021-02-24 03:37:35,869 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-24 03:37:35,870 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-24 03:37:35,870 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2021-02-24 03:37:35,870 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-24 03:37:35,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-24 03:37:35,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-24 03:37:35,870 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-24 03:37:35,871 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2021-02-24 03:37:35,871 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-24 03:37:35,871 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2021-02-24 03:37:35,871 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-02-24 03:37:35,871 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-24 03:37:35,871 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2021-02-24 03:37:35,872 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2021-02-24 03:37:35,872 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2021-02-24 03:37:35,872 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-02-24 03:37:35,872 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-02-24 03:37:35,872 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2021-02-24 03:37:35,872 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-02-24 03:37:35,872 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-02-24 03:37:35,873 INFO L130 BoogieDeclarations]: Found specification of procedure test [2021-02-24 03:37:35,873 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2021-02-24 03:37:35,873 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-02-24 03:37:35,873 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2021-02-24 03:37:35,873 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2021-02-24 03:37:35,873 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2021-02-24 03:37:35,874 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-02-24 03:37:35,874 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-02-24 03:37:35,874 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2021-02-24 03:37:35,874 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2021-02-24 03:37:35,874 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2021-02-24 03:37:35,874 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-02-24 03:37:35,874 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2021-02-24 03:37:35,875 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2021-02-24 03:37:35,875 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-02-24 03:37:35,875 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-02-24 03:37:35,875 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2021-02-24 03:37:35,875 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2021-02-24 03:37:35,875 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2021-02-24 03:37:35,876 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2021-02-24 03:37:35,876 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-24 03:37:35,876 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-24 03:37:35,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-24 03:37:35,876 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-24 03:37:37,438 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-24 03:37:37,438 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-24 03:37:37,441 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 03:37:37 BoogieIcfgContainer [2021-02-24 03:37:37,441 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-24 03:37:37,443 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-24 03:37:37,443 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-24 03:37:37,447 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-24 03:37:37,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 03:37:34" (1/3) ... [2021-02-24 03:37:37,448 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c87bc2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 03:37:37, skipping insertion in model container [2021-02-24 03:37:37,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:37:35" (2/3) ... [2021-02-24 03:37:37,449 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c87bc2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 03:37:37, skipping insertion in model container [2021-02-24 03:37:37,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 03:37:37" (3/3) ... [2021-02-24 03:37:37,450 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product39.cil.c [2021-02-24 03:37:37,457 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-24 03:37:37,463 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-24 03:37:37,482 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-24 03:37:37,506 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-24 03:37:37,506 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-24 03:37:37,506 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-24 03:37:37,506 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-24 03:37:37,507 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-24 03:37:37,507 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-24 03:37:37,507 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-24 03:37:37,507 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-24 03:37:37,530 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states. [2021-02-24 03:37:37,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-02-24 03:37:37,550 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:37:37,551 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 03:37:37,552 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:37:37,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:37:37,562 INFO L82 PathProgramCache]: Analyzing trace with hash -250568010, now seen corresponding path program 1 times [2021-02-24 03:37:37,572 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:37:37,572 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [70649838] [2021-02-24 03:37:37,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:37:37,656 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:37:37,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:37:38,022 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:38,023 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:38,024 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:38,025 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:38,363 WARN L202 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:37:38,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:37:38,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:37:38,522 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:38,525 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:38,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:37:38,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:37:38,557 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:38,558 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:38,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:37:38,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:37:38,564 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:38,565 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:38,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:37:38,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:37:38,575 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:38,576 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:38,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:37:38,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:37:38,578 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:38,579 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:38,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-02-24 03:37:38,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:37:38,585 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:38,586 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:38,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-02-24 03:37:38,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:37:38,594 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:38,595 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:38,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 03:37:38,640 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [70649838] [2021-02-24 03:37:38,642 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:37:38,642 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-24 03:37:38,643 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890272791] [2021-02-24 03:37:38,649 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-24 03:37:38,650 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:37:38,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-24 03:37:38,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-24 03:37:38,668 INFO L87 Difference]: Start difference. First operand 318 states. Second operand 3 states. [2021-02-24 03:37:40,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:37:40,435 INFO L93 Difference]: Finished difference Result 497 states and 591 transitions. [2021-02-24 03:37:40,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-24 03:37:40,438 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 147 [2021-02-24 03:37:40,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:37:40,458 INFO L225 Difference]: With dead ends: 497 [2021-02-24 03:37:40,459 INFO L226 Difference]: Without dead ends: 309 [2021-02-24 03:37:40,465 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-24 03:37:40,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2021-02-24 03:37:40,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 266. [2021-02-24 03:37:40,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2021-02-24 03:37:40,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 289 transitions. [2021-02-24 03:37:40,793 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 289 transitions. Word has length 147 [2021-02-24 03:37:40,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:37:40,796 INFO L480 AbstractCegarLoop]: Abstraction has 266 states and 289 transitions. [2021-02-24 03:37:40,796 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-24 03:37:40,796 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 289 transitions. [2021-02-24 03:37:40,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-02-24 03:37:40,811 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:37:40,811 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 03:37:40,812 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-24 03:37:40,812 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:37:40,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:37:40,813 INFO L82 PathProgramCache]: Analyzing trace with hash 878362011, now seen corresponding path program 1 times [2021-02-24 03:37:40,813 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:37:40,814 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1912904201] [2021-02-24 03:37:40,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:37:40,823 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:37:40,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:37:40,941 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:40,941 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:40,943 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:40,944 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:37:40,949 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:40,950 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:41,312 WARN L202 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:37:41,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:37:41,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:37:41,358 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:41,359 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:41,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:37:41,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:37:41,368 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:41,369 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:41,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:37:41,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:37:41,372 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:41,372 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:41,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:37:41,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:37:41,376 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:41,377 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:41,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:37:41,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:37:41,379 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:41,380 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:41,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-02-24 03:37:41,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:37:41,383 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:41,384 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:41,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-24 03:37:41,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:37:41,386 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:41,387 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:41,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 03:37:41,419 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1912904201] [2021-02-24 03:37:41,419 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:37:41,420 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-24 03:37:41,420 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086668474] [2021-02-24 03:37:41,421 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-24 03:37:41,421 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:37:41,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-24 03:37:41,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-24 03:37:41,422 INFO L87 Difference]: Start difference. First operand 266 states and 289 transitions. Second operand 4 states. [2021-02-24 03:37:42,287 WARN L202 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:37:43,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:37:43,497 INFO L93 Difference]: Finished difference Result 407 states and 457 transitions. [2021-02-24 03:37:43,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-24 03:37:43,498 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2021-02-24 03:37:43,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:37:43,504 INFO L225 Difference]: With dead ends: 407 [2021-02-24 03:37:43,504 INFO L226 Difference]: Without dead ends: 292 [2021-02-24 03:37:43,507 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-24 03:37:43,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2021-02-24 03:37:43,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 256. [2021-02-24 03:37:43,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 256 states. [2021-02-24 03:37:43,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 276 transitions. [2021-02-24 03:37:43,645 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 276 transitions. Word has length 148 [2021-02-24 03:37:43,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:37:43,646 INFO L480 AbstractCegarLoop]: Abstraction has 256 states and 276 transitions. [2021-02-24 03:37:43,646 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-24 03:37:43,647 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 276 transitions. [2021-02-24 03:37:43,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-02-24 03:37:43,650 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:37:43,650 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 03:37:43,650 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-24 03:37:43,650 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:37:43,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:37:43,651 INFO L82 PathProgramCache]: Analyzing trace with hash -2041974236, now seen corresponding path program 1 times [2021-02-24 03:37:43,651 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:37:43,652 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [324675502] [2021-02-24 03:37:43,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:37:43,656 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:37:43,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:37:43,760 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:43,760 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:37:43,765 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:43,765 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:37:43,766 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:43,766 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:37:43,771 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:43,772 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:37:43,778 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:43,778 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 03:37:43,785 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:43,786 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 03:37:43,787 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:43,787 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 03:37:43,788 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:43,788 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:44,165 WARN L202 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:37:44,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:37:44,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:37:44,227 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:44,228 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:44,229 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:44,229 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 03:37:44,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:37:44,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:37:44,241 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:44,242 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:44,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:37:44,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:37:44,245 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:44,245 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:44,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:37:44,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:37:44,255 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:44,256 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:44,264 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:44,265 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:37:44,285 WARN L141 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size [2021-02-24 03:37:44,286 WARN L147 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size 11 [2021-02-24 03:37:44,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:37:44,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:37:44,305 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:44,306 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:44,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-02-24 03:37:44,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:37:44,309 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:44,309 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:44,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-02-24 03:37:44,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:37:44,312 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:44,313 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:44,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 03:37:44,357 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [324675502] [2021-02-24 03:37:44,358 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:37:44,358 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-24 03:37:44,358 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675256027] [2021-02-24 03:37:44,359 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-24 03:37:44,359 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:37:44,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-24 03:37:44,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-02-24 03:37:44,360 INFO L87 Difference]: Start difference. First operand 256 states and 276 transitions. Second operand 9 states. [2021-02-24 03:37:45,105 WARN L202 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-24 03:37:45,584 WARN L202 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:37:45,996 WARN L202 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-24 03:37:46,329 WARN L202 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:37:46,751 WARN L202 SmtUtils]: Spent 391.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:37:47,140 WARN L202 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:37:48,376 WARN L202 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:37:50,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:37:50,964 INFO L93 Difference]: Finished difference Result 669 states and 769 transitions. [2021-02-24 03:37:50,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-24 03:37:50,965 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 157 [2021-02-24 03:37:50,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:37:50,973 INFO L225 Difference]: With dead ends: 669 [2021-02-24 03:37:50,973 INFO L226 Difference]: Without dead ends: 528 [2021-02-24 03:37:50,976 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2021-02-24 03:37:50,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2021-02-24 03:37:51,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 461. [2021-02-24 03:37:51,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 461 states. [2021-02-24 03:37:51,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 515 transitions. [2021-02-24 03:37:51,222 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 515 transitions. Word has length 157 [2021-02-24 03:37:51,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:37:51,223 INFO L480 AbstractCegarLoop]: Abstraction has 461 states and 515 transitions. [2021-02-24 03:37:51,223 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-24 03:37:51,223 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 515 transitions. [2021-02-24 03:37:51,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2021-02-24 03:37:51,226 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:37:51,227 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 03:37:51,227 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-24 03:37:51,227 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:37:51,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:37:51,228 INFO L82 PathProgramCache]: Analyzing trace with hash -1484265414, now seen corresponding path program 1 times [2021-02-24 03:37:51,228 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:37:51,228 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1368438105] [2021-02-24 03:37:51,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:37:51,232 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:37:51,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:37:51,302 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:51,303 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:37:51,306 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:51,306 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:37:51,307 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:51,307 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:37:51,311 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:51,312 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:37:51,317 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:51,318 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 03:37:51,324 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:51,324 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 03:37:51,325 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:51,325 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 03:37:51,326 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:51,326 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 03:37:51,327 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:51,327 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 03:37:51,334 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:51,335 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 03:37:51,343 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:51,343 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:51,665 WARN L202 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:37:51,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:37:51,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:37:51,735 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:51,736 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:51,737 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:51,737 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 03:37:51,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:37:51,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:37:51,747 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:51,748 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:51,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:37:51,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:37:51,751 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:51,752 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:51,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:37:51,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:37:51,764 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:51,765 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:51,766 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:51,768 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:37:51,785 WARN L141 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size [2021-02-24 03:37:51,786 WARN L147 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size 11 [2021-02-24 03:37:51,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:37:51,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:37:51,810 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:51,815 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:51,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-02-24 03:37:51,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:37:51,835 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:51,835 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:51,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-02-24 03:37:51,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:37:51,841 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:51,842 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:51,843 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:51,844 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:37:51,860 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:51,861 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:37:51,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-02-24 03:37:51,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:37:51,882 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:51,887 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:51,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 03:37:51,935 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1368438105] [2021-02-24 03:37:51,935 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:37:51,935 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-02-24 03:37:51,936 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463756309] [2021-02-24 03:37:51,936 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-02-24 03:37:51,937 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:37:51,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-02-24 03:37:51,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2021-02-24 03:37:51,938 INFO L87 Difference]: Start difference. First operand 461 states and 515 transitions. Second operand 14 states. [2021-02-24 03:37:52,635 WARN L202 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-24 03:37:53,137 WARN L202 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:37:53,538 WARN L202 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-24 03:37:53,913 WARN L202 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:37:54,317 WARN L202 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:37:54,710 WARN L202 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:37:55,563 WARN L202 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:37:57,068 WARN L202 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:37:57,582 WARN L202 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:37:58,213 WARN L202 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:37:58,656 WARN L202 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:37:59,064 WARN L202 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-24 03:37:59,469 WARN L202 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-24 03:37:59,857 WARN L202 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-24 03:38:00,273 WARN L202 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:38:00,648 WARN L202 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:38:01,231 WARN L202 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:38:01,754 WARN L202 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-24 03:38:02,188 WARN L202 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:38:02,720 WARN L202 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:38:04,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:38:04,985 INFO L93 Difference]: Finished difference Result 1581 states and 1984 transitions. [2021-02-24 03:38:04,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-02-24 03:38:04,986 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 166 [2021-02-24 03:38:04,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:38:04,997 INFO L225 Difference]: With dead ends: 1581 [2021-02-24 03:38:04,997 INFO L226 Difference]: Without dead ends: 1235 [2021-02-24 03:38:05,001 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=252, Invalid=1008, Unknown=0, NotChecked=0, Total=1260 [2021-02-24 03:38:05,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1235 states. [2021-02-24 03:38:05,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1235 to 1100. [2021-02-24 03:38:05,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1100 states. [2021-02-24 03:38:05,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1100 states to 1100 states and 1300 transitions. [2021-02-24 03:38:05,566 INFO L78 Accepts]: Start accepts. Automaton has 1100 states and 1300 transitions. Word has length 166 [2021-02-24 03:38:05,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:38:05,567 INFO L480 AbstractCegarLoop]: Abstraction has 1100 states and 1300 transitions. [2021-02-24 03:38:05,567 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2021-02-24 03:38:05,567 INFO L276 IsEmpty]: Start isEmpty. Operand 1100 states and 1300 transitions. [2021-02-24 03:38:05,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-02-24 03:38:05,573 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:38:05,573 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 03:38:05,573 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-24 03:38:05,574 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:38:05,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:38:05,574 INFO L82 PathProgramCache]: Analyzing trace with hash 1852844756, now seen corresponding path program 1 times [2021-02-24 03:38:05,574 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:38:05,575 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1720479947] [2021-02-24 03:38:05,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:38:05,578 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:38:05,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:05,643 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:05,644 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:38:05,647 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:05,648 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:38:05,649 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:05,649 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:38:05,650 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:05,653 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:38:05,654 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:05,654 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:38:05,655 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:05,656 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:38:05,656 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:05,657 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:05,994 WARN L202 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:38:05,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:38:06,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:06,036 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:06,037 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:06,037 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:06,038 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:38:06,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:38:06,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:06,046 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:06,047 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:06,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:38:06,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:06,050 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:06,051 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:06,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:38:06,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:06,054 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:06,056 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:06,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:38:06,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:06,060 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:06,061 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:06,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-02-24 03:38:06,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:06,075 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:06,076 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:38:06,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-02-24 03:38:06,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:06,087 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:06,087 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:06,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-02-24 03:38:06,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:06,091 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:06,093 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:06,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-02-24 03:38:06,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:06,096 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:06,097 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:06,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 03:38:06,169 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1720479947] [2021-02-24 03:38:06,169 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:38:06,169 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-24 03:38:06,170 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685607439] [2021-02-24 03:38:06,170 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-24 03:38:06,170 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:38:06,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-24 03:38:06,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-02-24 03:38:06,171 INFO L87 Difference]: Start difference. First operand 1100 states and 1300 transitions. Second operand 6 states. [2021-02-24 03:38:06,866 WARN L202 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-24 03:38:09,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:38:09,699 INFO L93 Difference]: Finished difference Result 2533 states and 3181 transitions. [2021-02-24 03:38:09,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-24 03:38:09,699 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 171 [2021-02-24 03:38:09,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:38:09,713 INFO L225 Difference]: With dead ends: 2533 [2021-02-24 03:38:09,714 INFO L226 Difference]: Without dead ends: 1548 [2021-02-24 03:38:09,718 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2021-02-24 03:38:09,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1548 states. [2021-02-24 03:38:10,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1548 to 1425. [2021-02-24 03:38:10,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1425 states. [2021-02-24 03:38:10,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1425 states to 1425 states and 1681 transitions. [2021-02-24 03:38:10,512 INFO L78 Accepts]: Start accepts. Automaton has 1425 states and 1681 transitions. Word has length 171 [2021-02-24 03:38:10,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:38:10,512 INFO L480 AbstractCegarLoop]: Abstraction has 1425 states and 1681 transitions. [2021-02-24 03:38:10,513 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-24 03:38:10,513 INFO L276 IsEmpty]: Start isEmpty. Operand 1425 states and 1681 transitions. [2021-02-24 03:38:10,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2021-02-24 03:38:10,519 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:38:10,520 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-02-24 03:38:10,520 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-24 03:38:10,520 INFO L428 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:38:10,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:38:10,521 INFO L82 PathProgramCache]: Analyzing trace with hash 999941277, now seen corresponding path program 1 times [2021-02-24 03:38:10,521 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:38:10,521 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1605842952] [2021-02-24 03:38:10,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:38:10,579 WARN L141 QuantifierPusher]: treesize reduction 3, result has 96.6 percent of original size [2021-02-24 03:38:10,604 WARN L147 QuantifierPusher]: treesize reduction 3, result has 96.6 percent of original size 86 [2021-02-24 03:38:10,616 WARN L141 QuantifierPusher]: treesize reduction 3, result has 96.6 percent of original size [2021-02-24 03:38:10,624 WARN L147 QuantifierPusher]: treesize reduction 3, result has 96.6 percent of original size 86 [2021-02-24 03:38:10,689 WARN L141 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size [2021-02-24 03:38:10,699 WARN L147 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size 8 [2021-02-24 03:38:10,706 WARN L141 QuantifierPusher]: treesize reduction 11, result has 83.1 percent of original size [2021-02-24 03:38:10,709 WARN L147 QuantifierPusher]: treesize reduction 11, result has 83.1 percent of original size 54 [2021-02-24 03:38:10,713 WARN L141 QuantifierPusher]: treesize reduction 5, result has 94.4 percent of original size [2021-02-24 03:38:10,719 WARN L147 QuantifierPusher]: treesize reduction 5, result has 94.4 percent of original size 84 [2021-02-24 03:38:10,726 WARN L141 QuantifierPusher]: treesize reduction 5, result has 94.4 percent of original size [2021-02-24 03:38:10,732 WARN L147 QuantifierPusher]: treesize reduction 5, result has 94.4 percent of original size 84 [2021-02-24 03:38:10,793 WARN L141 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size [2021-02-24 03:38:10,795 WARN L147 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size 8 [2021-02-24 03:38:10,802 WARN L141 QuantifierPusher]: treesize reduction 11, result has 83.1 percent of original size [2021-02-24 03:38:10,808 WARN L147 QuantifierPusher]: treesize reduction 11, result has 83.1 percent of original size 54 [2021-02-24 03:38:10,815 WARN L141 QuantifierPusher]: treesize reduction 5, result has 94.4 percent of original size [2021-02-24 03:38:10,828 WARN L147 QuantifierPusher]: treesize reduction 5, result has 94.4 percent of original size 84 [2021-02-24 03:38:10,833 WARN L141 QuantifierPusher]: treesize reduction 5, result has 94.4 percent of original size [2021-02-24 03:38:10,846 WARN L147 QuantifierPusher]: treesize reduction 5, result has 94.4 percent of original size 84 [2021-02-24 03:38:10,902 WARN L141 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size [2021-02-24 03:38:10,903 WARN L147 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size 8 [2021-02-24 03:38:10,906 WARN L141 QuantifierPusher]: treesize reduction 11, result has 83.1 percent of original size [2021-02-24 03:38:10,908 WARN L147 QuantifierPusher]: treesize reduction 11, result has 83.1 percent of original size 54 [2021-02-24 03:38:10,911 WARN L141 QuantifierPusher]: treesize reduction 3, result has 96.6 percent of original size [2021-02-24 03:38:10,915 WARN L147 QuantifierPusher]: treesize reduction 3, result has 96.6 percent of original size 86 [2021-02-24 03:38:10,918 WARN L141 QuantifierPusher]: treesize reduction 3, result has 96.6 percent of original size [2021-02-24 03:38:10,923 WARN L147 QuantifierPusher]: treesize reduction 3, result has 96.6 percent of original size 86 [2021-02-24 03:38:10,977 WARN L141 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size [2021-02-24 03:38:10,979 WARN L147 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size 8 [2021-02-24 03:38:10,981 WARN L141 QuantifierPusher]: treesize reduction 11, result has 83.1 percent of original size [2021-02-24 03:38:10,983 WARN L147 QuantifierPusher]: treesize reduction 11, result has 83.1 percent of original size 54 [2021-02-24 03:38:10,986 WARN L141 QuantifierPusher]: treesize reduction 5, result has 94.4 percent of original size [2021-02-24 03:38:10,991 WARN L147 QuantifierPusher]: treesize reduction 5, result has 94.4 percent of original size 84 [2021-02-24 03:38:10,994 WARN L141 QuantifierPusher]: treesize reduction 5, result has 94.4 percent of original size [2021-02-24 03:38:10,998 WARN L147 QuantifierPusher]: treesize reduction 5, result has 94.4 percent of original size 84 [2021-02-24 03:38:11,048 WARN L141 QuantifierPusher]: treesize reduction 6, result has 87.8 percent of original size [2021-02-24 03:38:11,053 INFO L723 QuantifierPusher]: Distributing 10 disjuncts over 3 conjuncts [2021-02-24 03:38:11,058 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:11,059 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 03:38:11,061 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:11,067 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 115 [2021-02-24 03:38:11,070 WARN L147 QuantifierPusher]: treesize reduction 6, result has 87.8 percent of original size 43 [2021-02-24 03:38:11,075 WARN L141 QuantifierPusher]: treesize reduction 11, result has 92.0 percent of original size [2021-02-24 03:38:11,080 WARN L147 QuantifierPusher]: treesize reduction 11, result has 92.0 percent of original size 126 [2021-02-24 03:38:11,082 WARN L141 QuantifierPusher]: treesize reduction 3, result has 96.6 percent of original size [2021-02-24 03:38:11,086 WARN L147 QuantifierPusher]: treesize reduction 3, result has 96.6 percent of original size 86 [2021-02-24 03:38:11,089 WARN L141 QuantifierPusher]: treesize reduction 3, result has 96.6 percent of original size [2021-02-24 03:38:11,093 WARN L147 QuantifierPusher]: treesize reduction 3, result has 96.6 percent of original size 86 [2021-02-24 03:38:11,146 WARN L141 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size [2021-02-24 03:38:11,147 WARN L147 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size 8 [2021-02-24 03:38:11,150 WARN L141 QuantifierPusher]: treesize reduction 11, result has 83.1 percent of original size [2021-02-24 03:38:11,152 WARN L147 QuantifierPusher]: treesize reduction 11, result has 83.1 percent of original size 54 [2021-02-24 03:38:11,154 WARN L141 QuantifierPusher]: treesize reduction 5, result has 94.4 percent of original size [2021-02-24 03:38:11,158 WARN L147 QuantifierPusher]: treesize reduction 5, result has 94.4 percent of original size 84 [2021-02-24 03:38:11,160 WARN L141 QuantifierPusher]: treesize reduction 5, result has 94.4 percent of original size [2021-02-24 03:38:11,164 WARN L147 QuantifierPusher]: treesize reduction 5, result has 94.4 percent of original size 84 [2021-02-24 03:38:11,214 WARN L141 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size [2021-02-24 03:38:11,215 WARN L147 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size 8 [2021-02-24 03:38:11,217 WARN L141 QuantifierPusher]: treesize reduction 11, result has 83.1 percent of original size [2021-02-24 03:38:11,219 WARN L147 QuantifierPusher]: treesize reduction 11, result has 83.1 percent of original size 54 [2021-02-24 03:38:11,221 WARN L141 QuantifierPusher]: treesize reduction 3, result has 96.6 percent of original size [2021-02-24 03:38:11,225 WARN L147 QuantifierPusher]: treesize reduction 3, result has 96.6 percent of original size 86 [2021-02-24 03:38:11,227 WARN L141 QuantifierPusher]: treesize reduction 3, result has 96.6 percent of original size [2021-02-24 03:38:11,231 WARN L147 QuantifierPusher]: treesize reduction 3, result has 96.6 percent of original size 86 [2021-02-24 03:38:11,281 WARN L141 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size [2021-02-24 03:38:11,283 WARN L147 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size 8 [2021-02-24 03:38:11,285 WARN L141 QuantifierPusher]: treesize reduction 11, result has 83.1 percent of original size [2021-02-24 03:38:11,286 WARN L147 QuantifierPusher]: treesize reduction 11, result has 83.1 percent of original size 54 [2021-02-24 03:38:11,287 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-24 03:38:11,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:11,363 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:11,363 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:11,364 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:11,364 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:38:11,367 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:11,368 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:38:11,371 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:11,372 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:38:11,377 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:11,377 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:11,667 WARN L202 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:38:11,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:38:11,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:11,697 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:11,697 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:11,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:38:11,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:11,704 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:11,704 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:11,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:38:11,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:11,707 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:11,707 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:11,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:38:11,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:11,709 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:11,710 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:11,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:38:11,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:11,715 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:11,715 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:11,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-24 03:38:11,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:11,728 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:11,728 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:11,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-02-24 03:38:11,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:11,731 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:11,732 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:11,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-02-24 03:38:11,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:11,735 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:11,736 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:11,736 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:11,737 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:38:11,747 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:11,747 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:38:11,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 03:38:11,799 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:11,802 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 03:38:11,802 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:11,803 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:38:11,804 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-02-24 03:38:11,805 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:11,806 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 03:38:11,807 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:11,808 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:38:11,808 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-02-24 03:38:11,809 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:11,811 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 03:38:11,812 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:11,812 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:38:11,813 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-02-24 03:38:11,814 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:11,816 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 03:38:11,816 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:11,817 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:38:11,817 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-02-24 03:38:11,820 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:11,824 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 03:38:11,825 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:11,827 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-02-24 03:38:11,828 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 119 [2021-02-24 03:38:11,829 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:11,830 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 03:38:11,831 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:11,832 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:38:11,833 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-02-24 03:38:11,834 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:11,834 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:11,835 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:11,835 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:38:11,848 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:11,849 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-24 03:38:11,868 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:11,868 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-24 03:38:11,890 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:11,892 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-24 03:38:11,912 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:11,913 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-24 03:38:11,940 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:11,942 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 03:38:11,942 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:11,943 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-24 03:38:11,944 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 03:38:11,944 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:11,945 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:38:11,946 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-24 03:38:11,965 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:11,966 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-24 03:38:11,966 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:11,967 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-24 03:38:11,996 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:11,997 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-02-24 03:38:12,026 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:12,027 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-24 03:38:12,029 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:12,029 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 03:38:12,030 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:12,031 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:38:12,031 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 03:38:12,032 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:12,032 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-24 03:38:12,034 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-24 03:38:12,078 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:12,079 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-24 03:38:12,110 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:12,111 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-24 03:38:12,145 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:12,147 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-24 03:38:12,203 WARN L141 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-02-24 03:38:12,204 WARN L147 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size 7 [2021-02-24 03:38:12,225 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:12,226 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-24 03:38:12,261 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:12,262 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-02-24 03:38:12,303 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:12,304 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-24 03:38:12,340 WARN L141 QuantifierPusher]: treesize reduction 8, result has 55.6 percent of original size [2021-02-24 03:38:12,340 WARN L147 QuantifierPusher]: treesize reduction 8, result has 55.6 percent of original size 10 [2021-02-24 03:38:12,373 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:12,376 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-02-24 03:38:12,418 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:12,419 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-24 03:38:12,464 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:12,465 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-24 03:38:12,510 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:12,511 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-24 03:38:12,561 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:12,563 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 03:38:12,564 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:12,565 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-24 03:38:12,565 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-24 03:38:12,616 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:12,616 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-24 03:38:12,617 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:12,619 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-02-24 03:38:12,676 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:12,678 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-24 03:38:12,743 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:12,744 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-24 03:38:12,745 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:12,747 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 03:38:12,749 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:12,750 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-24 03:38:12,752 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-24 03:38:12,810 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:12,812 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-24 03:38:12,851 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:12,852 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-24 03:38:12,852 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:12,854 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-24 03:38:12,855 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:12,856 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-24 03:38:12,857 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:12,857 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-24 03:38:12,858 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:12,858 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-24 03:38:12,859 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:12,859 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-24 03:38:12,860 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:12,860 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-24 03:38:12,861 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:12,862 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-24 03:38:12,863 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:12,863 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-24 03:38:12,865 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:12,865 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-24 03:38:12,866 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:12,866 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-24 03:38:12,902 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:12,903 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-24 03:38:12,953 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:12,953 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-24 03:38:12,954 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:12,955 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-02-24 03:38:13,005 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:13,006 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-24 03:38:13,070 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:13,071 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-24 03:38:13,129 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:13,130 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-24 03:38:13,185 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:13,186 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-24 03:38:13,244 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:13,245 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-24 03:38:13,246 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:13,247 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-24 03:38:13,301 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:13,302 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-24 03:38:13,304 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:13,305 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-02-24 03:38:13,306 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:13,306 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:13,306 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1605842952] [2021-02-24 03:38:13,306 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:38:13,306 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [40] imperfect sequences [] total 40 [2021-02-24 03:38:13,307 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164090459] [2021-02-24 03:38:13,307 INFO L460 AbstractCegarLoop]: Interpolant automaton has 40 states [2021-02-24 03:38:13,307 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:38:13,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-02-24 03:38:13,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=199, Invalid=1523, Unknown=0, NotChecked=0, Total=1722 [2021-02-24 03:38:13,310 INFO L87 Difference]: Start difference. First operand 1425 states and 1681 transitions. Second operand 40 states. [2021-02-24 03:38:13,951 WARN L202 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:38:14,608 WARN L202 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-24 03:38:15,058 WARN L202 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2021-02-24 03:38:15,505 WARN L202 SmtUtils]: Spent 401.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2021-02-24 03:38:15,896 WARN L202 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2021-02-24 03:38:16,332 WARN L202 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2021-02-24 03:38:16,819 WARN L202 SmtUtils]: Spent 414.00 ms on a formula simplification that was a NOOP. DAG size: 219 [2021-02-24 03:38:17,268 WARN L202 SmtUtils]: Spent 397.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2021-02-24 03:38:17,743 WARN L202 SmtUtils]: Spent 425.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2021-02-24 03:38:18,214 WARN L202 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 219 [2021-02-24 03:38:18,662 WARN L202 SmtUtils]: Spent 389.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2021-02-24 03:38:19,199 WARN L202 SmtUtils]: Spent 442.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2021-02-24 03:38:19,798 WARN L202 SmtUtils]: Spent 477.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2021-02-24 03:38:20,357 WARN L202 SmtUtils]: Spent 428.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2021-02-24 03:38:20,944 WARN L202 SmtUtils]: Spent 414.00 ms on a formula simplification that was a NOOP. DAG size: 219 [2021-02-24 03:38:21,520 WARN L202 SmtUtils]: Spent 429.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2021-02-24 03:38:22,170 WARN L202 SmtUtils]: Spent 453.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2021-02-24 03:38:22,703 WARN L202 SmtUtils]: Spent 388.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2021-02-24 03:38:23,232 WARN L202 SmtUtils]: Spent 408.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2021-02-24 03:38:23,760 WARN L202 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2021-02-24 03:38:24,681 WARN L202 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:38:25,452 WARN L202 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-24 03:38:25,948 WARN L202 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-24 03:38:26,419 WARN L202 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-24 03:38:26,855 WARN L202 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2021-02-24 03:38:27,314 WARN L202 SmtUtils]: Spent 392.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2021-02-24 03:38:27,737 WARN L202 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2021-02-24 03:38:28,176 WARN L202 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2021-02-24 03:38:28,640 WARN L202 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2021-02-24 03:38:29,836 WARN L202 SmtUtils]: Spent 440.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2021-02-24 03:38:30,892 WARN L202 SmtUtils]: Spent 816.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 222 [2021-02-24 03:38:32,135 WARN L202 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-24 03:38:34,257 WARN L202 SmtUtils]: Spent 415.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2021-02-24 03:38:35,640 WARN L202 SmtUtils]: Spent 401.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2021-02-24 03:38:36,232 WARN L202 SmtUtils]: Spent 392.00 ms on a formula simplification that was a NOOP. DAG size: 219 [2021-02-24 03:38:36,675 WARN L202 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 216 [2021-02-24 03:38:37,750 WARN L202 SmtUtils]: Spent 758.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 214 [2021-02-24 03:38:38,815 WARN L202 SmtUtils]: Spent 780.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 216 [2021-02-24 03:38:39,418 WARN L202 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2021-02-24 03:38:39,935 WARN L202 SmtUtils]: Spent 404.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2021-02-24 03:38:40,629 WARN L202 SmtUtils]: Spent 431.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2021-02-24 03:38:41,172 WARN L202 SmtUtils]: Spent 411.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2021-02-24 03:38:41,627 WARN L202 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 216 [2021-02-24 03:38:42,187 WARN L202 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 216 [2021-02-24 03:38:43,440 WARN L202 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-24 03:38:44,129 WARN L202 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-24 03:38:44,922 WARN L202 SmtUtils]: Spent 385.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2021-02-24 03:38:45,810 WARN L202 SmtUtils]: Spent 413.00 ms on a formula simplification that was a NOOP. DAG size: 216 [2021-02-24 03:38:46,273 WARN L202 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2021-02-24 03:38:46,844 WARN L202 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2021-02-24 03:38:48,436 WARN L202 SmtUtils]: Spent 422.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2021-02-24 03:38:49,339 WARN L202 SmtUtils]: Spent 769.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 218 [2021-02-24 03:38:50,742 WARN L202 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:38:51,138 WARN L202 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:38:51,684 WARN L202 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:38:52,149 WARN L202 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-24 03:38:52,530 WARN L202 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:38:52,946 WARN L202 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:38:53,457 WARN L202 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-24 03:38:53,844 WARN L202 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:38:58,888 WARN L202 SmtUtils]: Spent 453.00 ms on a formula simplification that was a NOOP. DAG size: 227 [2021-02-24 03:38:59,544 WARN L202 SmtUtils]: Spent 411.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2021-02-24 03:39:00,230 WARN L202 SmtUtils]: Spent 418.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2021-02-24 03:39:00,924 WARN L202 SmtUtils]: Spent 423.00 ms on a formula simplification that was a NOOP. DAG size: 227 [2021-02-24 03:39:04,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:39:04,410 INFO L93 Difference]: Finished difference Result 2442 states and 3153 transitions. [2021-02-24 03:39:04,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 314 states. [2021-02-24 03:39:04,411 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 210 [2021-02-24 03:39:04,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:39:04,419 INFO L225 Difference]: With dead ends: 2442 [2021-02-24 03:39:04,419 INFO L226 Difference]: Without dead ends: 1048 [2021-02-24 03:39:04,448 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 444 GetRequests, 95 SyntacticMatches, 1 SemanticMatches, 348 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52901 ImplicationChecksByTransitivity, 43.0s TimeCoverageRelationStatistics Valid=9963, Invalid=112187, Unknown=0, NotChecked=0, Total=122150 [2021-02-24 03:39:04,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1048 states. [2021-02-24 03:39:04,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1048 to 678. [2021-02-24 03:39:04,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 678 states. [2021-02-24 03:39:04,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 678 states and 777 transitions. [2021-02-24 03:39:04,785 INFO L78 Accepts]: Start accepts. Automaton has 678 states and 777 transitions. Word has length 210 [2021-02-24 03:39:04,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:39:04,786 INFO L480 AbstractCegarLoop]: Abstraction has 678 states and 777 transitions. [2021-02-24 03:39:04,786 INFO L481 AbstractCegarLoop]: Interpolant automaton has 40 states. [2021-02-24 03:39:04,786 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states and 777 transitions. [2021-02-24 03:39:04,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2021-02-24 03:39:04,792 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:39:04,793 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-02-24 03:39:04,793 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-24 03:39:04,793 INFO L428 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:39:04,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:39:04,794 INFO L82 PathProgramCache]: Analyzing trace with hash -621354483, now seen corresponding path program 1 times [2021-02-24 03:39:04,794 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:39:04,794 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [157279113] [2021-02-24 03:39:04,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:39:04,823 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.loopaccelerator.AcceleratorWernerOverapprox.accelerateLoop(AcceleratorWernerOverapprox.java:55) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolationCore.acceleratedInterpolationCoreIsCorrect(AcceleratedInterpolationCore.java:183) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.(AcceleratedInterpolation.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:145) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:241) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:84) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:511) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:437) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:62) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateAllErrorsAtOnce(TraceAbstractionStarter.java:317) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:171) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:131) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-02-24 03:39:04,829 INFO L168 Benchmark]: Toolchain (without parser) took 89878.75 ms. Allocated memory was 163.6 MB in the beginning and 805.3 MB in the end (delta: 641.7 MB). Free memory was 139.8 MB in the beginning and 520.9 MB in the end (delta: -381.2 MB). Peak memory consumption was 261.3 MB. Max. memory is 8.0 GB. [2021-02-24 03:39:04,829 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 163.6 MB. Free memory is still 136.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-24 03:39:04,830 INFO L168 Benchmark]: CACSL2BoogieTranslator took 561.85 ms. Allocated memory is still 163.6 MB. Free memory was 138.6 MB in the beginning and 117.2 MB in the end (delta: 21.4 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2021-02-24 03:39:04,831 INFO L168 Benchmark]: Boogie Preprocessor took 137.73 ms. Allocated memory is still 163.6 MB. Free memory was 117.2 MB in the beginning and 113.3 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-02-24 03:39:04,831 INFO L168 Benchmark]: RCFGBuilder took 1776.28 ms. Allocated memory was 163.6 MB in the beginning and 211.8 MB in the end (delta: 48.2 MB). Free memory was 113.2 MB in the beginning and 146.3 MB in the end (delta: -33.1 MB). Peak memory consumption was 27.2 MB. Max. memory is 8.0 GB. [2021-02-24 03:39:04,831 INFO L168 Benchmark]: TraceAbstraction took 87385.10 ms. Allocated memory was 211.8 MB in the beginning and 805.3 MB in the end (delta: 593.5 MB). Free memory was 145.8 MB in the beginning and 520.9 MB in the end (delta: -375.1 MB). Peak memory consumption was 218.4 MB. Max. memory is 8.0 GB. [2021-02-24 03:39:04,832 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 163.6 MB. Free memory is still 136.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 561.85 ms. Allocated memory is still 163.6 MB. Free memory was 138.6 MB in the beginning and 117.2 MB in the end (delta: 21.4 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 137.73 ms. Allocated memory is still 163.6 MB. Free memory was 117.2 MB in the beginning and 113.3 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1776.28 ms. Allocated memory was 163.6 MB in the beginning and 211.8 MB in the end (delta: 48.2 MB). Free memory was 113.2 MB in the beginning and 146.3 MB in the end (delta: -33.1 MB). Peak memory consumption was 27.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 87385.10 ms. Allocated memory was 211.8 MB in the beginning and 805.3 MB in the end (delta: 593.5 MB). Free memory was 145.8 MB in the beginning and 520.9 MB in the end (delta: -375.1 MB). Peak memory consumption was 218.4 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.loopaccelerator.AcceleratorWernerOverapprox.accelerateLoop(AcceleratorWernerOverapprox.java:55) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...