/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_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-24 03:37:16,183 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-24 03:37:16,186 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-24 03:37:16,243 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-24 03:37:16,243 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-24 03:37:16,248 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-24 03:37:16,251 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-24 03:37:16,259 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-24 03:37:16,262 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-24 03:37:16,267 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-24 03:37:16,268 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-24 03:37:16,272 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-24 03:37:16,273 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-24 03:37:16,275 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-24 03:37:16,277 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-24 03:37:16,279 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-24 03:37:16,283 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-24 03:37:16,284 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-24 03:37:16,291 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-24 03:37:16,297 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-24 03:37:16,301 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-24 03:37:16,302 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-24 03:37:16,304 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-24 03:37:16,318 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-24 03:37:16,326 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-24 03:37:16,327 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-24 03:37:16,327 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-24 03:37:16,330 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-24 03:37:16,330 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-24 03:37:16,331 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-24 03:37:16,332 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-24 03:37:16,333 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-24 03:37:16,334 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-24 03:37:16,335 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-24 03:37:16,336 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-24 03:37:16,337 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-24 03:37:16,337 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-24 03:37:16,338 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-24 03:37:16,338 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-24 03:37:16,339 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-24 03:37:16,340 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-24 03:37:16,341 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 03:37:16,368 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-24 03:37:16,368 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-24 03:37:16,374 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-24 03:37:16,374 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-24 03:37:16,374 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-24 03:37:16,374 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-24 03:37:16,375 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-24 03:37:16,375 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-24 03:37:16,375 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-24 03:37:16,375 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-24 03:37:16,377 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-24 03:37:16,377 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-24 03:37:16,377 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-24 03:37:16,378 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-24 03:37:16,378 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-24 03:37:16,378 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-24 03:37:16,378 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-24 03:37:16,378 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-24 03:37:16,379 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 03:37:16,379 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-24 03:37:16,379 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-24 03:37:16,379 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-24 03:37:16,380 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-24 03:37:16,380 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-24 03:37:16,772 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-24 03:37:16,797 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-24 03:37:16,801 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-24 03:37:16,802 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-24 03:37:16,803 INFO L275 PluginConnector]: CDTParser initialized [2021-02-24 03:37:16,804 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product35.cil.c [2021-02-24 03:37:16,893 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/204e9e2ea/d128f43c4179466f95b74f30b8d17ce9/FLAGd6479b3f3 [2021-02-24 03:37:17,643 INFO L306 CDTParser]: Found 1 translation units. [2021-02-24 03:37:17,645 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product35.cil.c [2021-02-24 03:37:17,665 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/204e9e2ea/d128f43c4179466f95b74f30b8d17ce9/FLAGd6479b3f3 [2021-02-24 03:37:17,897 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/204e9e2ea/d128f43c4179466f95b74f30b8d17ce9 [2021-02-24 03:37:17,909 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-24 03:37:17,925 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-24 03:37:17,929 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-24 03:37:17,930 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-24 03:37:17,934 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-24 03:37:17,935 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 03:37:17" (1/1) ... [2021-02-24 03:37:17,936 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@244f0ecc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:37:17, skipping insertion in model container [2021-02-24 03:37:17,936 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 03:37:17" (1/1) ... [2021-02-24 03:37:17,945 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-24 03:37:18,012 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-24 03:37:18,338 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_product35.cil.c[15762,15775] [2021-02-24 03:37:18,351 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 03:37:18,362 INFO L203 MainTranslator]: Completed pre-run [2021-02-24 03:37:18,442 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_product35.cil.c[15762,15775] [2021-02-24 03:37:18,463 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 03:37:18,502 INFO L208 MainTranslator]: Completed translation [2021-02-24 03:37:18,503 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:37:18 WrapperNode [2021-02-24 03:37:18,503 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-24 03:37:18,505 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-24 03:37:18,505 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-24 03:37:18,506 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-24 03:37:18,519 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:37:18" (1/1) ... [2021-02-24 03:37:18,519 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:37:18" (1/1) ... [2021-02-24 03:37:18,538 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:37:18" (1/1) ... [2021-02-24 03:37:18,539 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:37:18" (1/1) ... [2021-02-24 03:37:18,574 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:37:18" (1/1) ... [2021-02-24 03:37:18,585 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:37:18" (1/1) ... [2021-02-24 03:37:18,591 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:37:18" (1/1) ... [2021-02-24 03:37:18,599 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-24 03:37:18,600 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-24 03:37:18,600 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-24 03:37:18,600 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-24 03:37:18,601 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:37:18" (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 03:37:18,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-24 03:37:18,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-24 03:37:18,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-02-24 03:37:18,701 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-24 03:37:18,701 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2021-02-24 03:37:18,702 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2021-02-24 03:37:18,702 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-02-24 03:37:18,703 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-02-24 03:37:18,703 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2021-02-24 03:37:18,704 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2021-02-24 03:37:18,704 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-02-24 03:37:18,704 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-02-24 03:37:18,704 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-02-24 03:37:18,704 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2021-02-24 03:37:18,705 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2021-02-24 03:37:18,706 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2021-02-24 03:37:18,706 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-02-24 03:37:18,707 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2021-02-24 03:37:18,707 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2021-02-24 03:37:18,709 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2021-02-24 03:37:18,710 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-24 03:37:18,710 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2021-02-24 03:37:18,710 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2021-02-24 03:37:18,710 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2021-02-24 03:37:18,711 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2021-02-24 03:37:18,711 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2021-02-24 03:37:18,711 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2021-02-24 03:37:18,711 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-02-24 03:37:18,714 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-02-24 03:37:18,714 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2021-02-24 03:37:18,714 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2021-02-24 03:37:18,714 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2021-02-24 03:37:18,714 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2021-02-24 03:37:18,715 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-02-24 03:37:18,715 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-02-24 03:37:18,715 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-02-24 03:37:18,715 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2021-02-24 03:37:18,715 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2021-02-24 03:37:18,715 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2021-02-24 03:37:18,715 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-24 03:37:18,715 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-24 03:37:18,715 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-24 03:37:18,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-24 03:37:18,716 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-24 03:37:18,716 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-02-24 03:37:18,716 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-02-24 03:37:18,716 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-02-24 03:37:18,716 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2021-02-24 03:37:18,716 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-02-24 03:37:18,716 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-02-24 03:37:18,716 INFO L130 BoogieDeclarations]: Found specification of procedure test [2021-02-24 03:37:18,717 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-02-24 03:37:18,717 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-02-24 03:37:18,717 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2021-02-24 03:37:18,717 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2021-02-24 03:37:18,717 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2021-02-24 03:37:18,717 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-02-24 03:37:18,717 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2021-02-24 03:37:18,717 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2021-02-24 03:37:18,717 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2021-02-24 03:37:18,717 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-02-24 03:37:18,718 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2021-02-24 03:37:18,718 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2021-02-24 03:37:18,718 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-02-24 03:37:18,718 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2021-02-24 03:37:18,718 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-02-24 03:37:18,718 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2021-02-24 03:37:18,718 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2021-02-24 03:37:18,718 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2021-02-24 03:37:18,718 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2021-02-24 03:37:18,718 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2021-02-24 03:37:18,719 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2021-02-24 03:37:18,719 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-24 03:37:18,719 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-24 03:37:18,719 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-24 03:37:18,719 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2021-02-24 03:37:18,719 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-24 03:37:18,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-24 03:37:18,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-24 03:37:18,720 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-24 03:37:18,720 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2021-02-24 03:37:18,720 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-24 03:37:18,720 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2021-02-24 03:37:18,720 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-02-24 03:37:18,720 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-24 03:37:18,721 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2021-02-24 03:37:18,721 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2021-02-24 03:37:18,721 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2021-02-24 03:37:18,721 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-02-24 03:37:18,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-24 03:37:18,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-24 03:37:18,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-24 03:37:20,059 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-24 03:37:20,059 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-24 03:37:20,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 03:37:20 BoogieIcfgContainer [2021-02-24 03:37:20,062 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-24 03:37:20,064 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-24 03:37:20,064 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-24 03:37:20,068 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-24 03:37:20,069 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 03:37:17" (1/3) ... [2021-02-24 03:37:20,069 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a91ef38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 03:37:20, skipping insertion in model container [2021-02-24 03:37:20,070 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:37:18" (2/3) ... [2021-02-24 03:37:20,070 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a91ef38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 03:37:20, skipping insertion in model container [2021-02-24 03:37:20,070 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 03:37:20" (3/3) ... [2021-02-24 03:37:20,072 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product35.cil.c [2021-02-24 03:37:20,079 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-24 03:37:20,086 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-24 03:37:20,106 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-24 03:37:20,130 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-24 03:37:20,131 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-24 03:37:20,131 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-24 03:37:20,131 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-24 03:37:20,131 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-24 03:37:20,131 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-24 03:37:20,132 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-24 03:37:20,132 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-24 03:37:20,156 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states. [2021-02-24 03:37:20,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-02-24 03:37:20,175 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:37:20,176 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 03:37:20,177 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:37:20,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:37:20,184 INFO L82 PathProgramCache]: Analyzing trace with hash 229297265, now seen corresponding path program 1 times [2021-02-24 03:37:20,194 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:37:20,195 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [55828779] [2021-02-24 03:37:20,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:37:20,279 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:37:20,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:37:20,707 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:20,708 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:20,709 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:20,710 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:20,993 WARN L202 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:37:20,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:37:21,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:37:21,115 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:21,116 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:21,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:37:21,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:37:21,155 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:21,157 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:21,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:37:21,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:37:21,162 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:21,164 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:21,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:37:21,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:37:21,177 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:21,179 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:21,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:37:21,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:37:21,186 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:21,188 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:21,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-02-24 03:37:21,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:37:21,194 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:21,197 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:21,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-02-24 03:37:21,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:37:21,205 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:21,206 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:21,250 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 03:37:21,252 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [55828779] [2021-02-24 03:37:21,254 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:37:21,254 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-24 03:37:21,255 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212113484] [2021-02-24 03:37:21,263 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-24 03:37:21,264 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:37:21,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-24 03:37:21,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-24 03:37:21,282 INFO L87 Difference]: Start difference. First operand 293 states. Second operand 3 states. [2021-02-24 03:37:22,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:37:22,918 INFO L93 Difference]: Finished difference Result 445 states and 530 transitions. [2021-02-24 03:37:22,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-24 03:37:22,920 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 147 [2021-02-24 03:37:22,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:37:22,936 INFO L225 Difference]: With dead ends: 445 [2021-02-24 03:37:22,936 INFO L226 Difference]: Without dead ends: 282 [2021-02-24 03:37:22,941 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-24 03:37:22,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2021-02-24 03:37:23,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 241. [2021-02-24 03:37:23,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2021-02-24 03:37:23,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 260 transitions. [2021-02-24 03:37:23,099 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 260 transitions. Word has length 147 [2021-02-24 03:37:23,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:37:23,103 INFO L480 AbstractCegarLoop]: Abstraction has 241 states and 260 transitions. [2021-02-24 03:37:23,103 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-24 03:37:23,103 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 260 transitions. [2021-02-24 03:37:23,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-02-24 03:37:23,117 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:37:23,117 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 03:37:23,118 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-24 03:37:23,118 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:37:23,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:37:23,119 INFO L82 PathProgramCache]: Analyzing trace with hash 2102136118, now seen corresponding path program 1 times [2021-02-24 03:37:23,119 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:37:23,120 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1685192366] [2021-02-24 03:37:23,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:37:23,130 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:37:23,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:37:23,313 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:23,313 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:23,315 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:23,316 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:37:23,321 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:23,322 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:23,712 WARN L202 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:37:23,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:37:23,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:37:23,755 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:23,756 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:23,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:37:23,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:37:23,764 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:23,764 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:23,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:37:23,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:37:23,767 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:23,768 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:23,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:37:23,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:37:23,771 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:23,772 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:23,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:37:23,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:37:23,774 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:23,775 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:23,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-02-24 03:37:23,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:37:23,777 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:23,778 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:23,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-24 03:37:23,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:37:23,781 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:23,782 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:23,811 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 03:37:23,812 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1685192366] [2021-02-24 03:37:23,812 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:37:23,812 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-24 03:37:23,812 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853065902] [2021-02-24 03:37:23,814 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-24 03:37:23,814 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:37:23,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-24 03:37:23,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-24 03:37:23,815 INFO L87 Difference]: Start difference. First operand 241 states and 260 transitions. Second operand 4 states. [2021-02-24 03:37:24,585 WARN L202 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:37:25,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:37:25,487 INFO L93 Difference]: Finished difference Result 352 states and 394 transitions. [2021-02-24 03:37:25,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-24 03:37:25,488 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2021-02-24 03:37:25,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:37:25,493 INFO L225 Difference]: With dead ends: 352 [2021-02-24 03:37:25,493 INFO L226 Difference]: Without dead ends: 265 [2021-02-24 03:37:25,495 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-24 03:37:25,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2021-02-24 03:37:25,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 231. [2021-02-24 03:37:25,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 231 states. [2021-02-24 03:37:25,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 247 transitions. [2021-02-24 03:37:25,592 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 247 transitions. Word has length 148 [2021-02-24 03:37:25,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:37:25,592 INFO L480 AbstractCegarLoop]: Abstraction has 231 states and 247 transitions. [2021-02-24 03:37:25,593 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-24 03:37:25,593 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 247 transitions. [2021-02-24 03:37:25,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-02-24 03:37:25,595 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:37:25,595 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 03:37:25,595 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-24 03:37:25,596 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:37:25,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:37:25,596 INFO L82 PathProgramCache]: Analyzing trace with hash -1484901068, now seen corresponding path program 1 times [2021-02-24 03:37:25,596 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:37:25,597 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [837581091] [2021-02-24 03:37:25,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:37:25,600 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:37:25,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:37:25,688 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:25,689 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:37:25,693 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:25,693 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:37:25,694 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:25,694 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:37:25,699 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:25,699 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:37:25,705 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:25,705 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 03:37:25,711 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:25,712 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 03:37:25,712 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:25,713 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 03:37:25,713 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:25,714 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:26,086 WARN L202 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:37:26,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:37:26,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:37:26,149 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:26,150 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:26,150 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:26,151 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 03:37:26,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:37:26,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:37:26,166 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:26,167 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:26,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:37:26,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:37:26,170 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:26,170 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:26,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:37:26,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:37:26,179 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:26,180 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:26,188 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:26,189 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:37:26,209 WARN L141 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size [2021-02-24 03:37:26,210 WARN L147 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size 11 [2021-02-24 03:37:26,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:37:26,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:37:26,231 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:26,231 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:26,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-02-24 03:37:26,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:37:26,235 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:26,236 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:26,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-02-24 03:37:26,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:37:26,240 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:26,241 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:26,284 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 03:37:26,284 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [837581091] [2021-02-24 03:37:26,284 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:37:26,285 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-24 03:37:26,285 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012923109] [2021-02-24 03:37:26,285 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-24 03:37:26,286 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:37:26,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-24 03:37:26,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-02-24 03:37:26,287 INFO L87 Difference]: Start difference. First operand 231 states and 247 transitions. Second operand 9 states. [2021-02-24 03:37:27,001 WARN L202 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-24 03:37:27,471 WARN L202 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:37:27,828 WARN L202 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-24 03:37:28,228 WARN L202 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:37:28,623 WARN L202 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:37:28,984 WARN L202 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:37:30,079 WARN L202 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:37:31,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:37:31,888 INFO L93 Difference]: Finished difference Result 590 states and 676 transitions. [2021-02-24 03:37:31,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-24 03:37:31,890 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 157 [2021-02-24 03:37:31,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:37:31,894 INFO L225 Difference]: With dead ends: 590 [2021-02-24 03:37:31,894 INFO L226 Difference]: Without dead ends: 474 [2021-02-24 03:37:31,896 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2021-02-24 03:37:31,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2021-02-24 03:37:32,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 399. [2021-02-24 03:37:32,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 399 states. [2021-02-24 03:37:32,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 441 transitions. [2021-02-24 03:37:32,072 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 441 transitions. Word has length 157 [2021-02-24 03:37:32,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:37:32,073 INFO L480 AbstractCegarLoop]: Abstraction has 399 states and 441 transitions. [2021-02-24 03:37:32,073 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-24 03:37:32,074 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 441 transitions. [2021-02-24 03:37:32,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2021-02-24 03:37:32,077 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:37:32,078 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] [2021-02-24 03:37:32,078 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-24 03:37:32,078 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:37:32,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:37:32,079 INFO L82 PathProgramCache]: Analyzing trace with hash -142752541, now seen corresponding path program 1 times [2021-02-24 03:37:32,079 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:37:32,079 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1950999258] [2021-02-24 03:37:32,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:37:32,082 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:37:32,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:37:32,177 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:32,177 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:37:32,180 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:32,181 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:37:32,182 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:32,182 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:37:32,183 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:32,184 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:37:32,184 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:32,185 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:37:32,185 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:32,187 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:32,564 WARN L202 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:37:32,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:37:32,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:37:32,625 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:32,625 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:32,626 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:32,627 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:37:32,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:37:32,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:37:32,636 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:32,636 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:32,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:37:32,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:37:32,638 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:32,639 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:32,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:37:32,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:37:32,643 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:32,644 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:32,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:37:32,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:37:32,646 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:32,647 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:32,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-02-24 03:37:32,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:37:32,660 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:32,661 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:37:32,662 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:32,662 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 03:37:32,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-24 03:37:32,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:37:32,675 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:32,676 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:32,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-02-24 03:37:32,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:37:32,679 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:32,680 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:32,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-02-24 03:37:32,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:37:32,682 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:32,683 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:32,733 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 03:37:32,733 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1950999258] [2021-02-24 03:37:32,733 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:37:32,734 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-24 03:37:32,734 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267349340] [2021-02-24 03:37:32,734 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-24 03:37:32,735 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:37:32,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-24 03:37:32,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-02-24 03:37:32,736 INFO L87 Difference]: Start difference. First operand 399 states and 441 transitions. Second operand 6 states. [2021-02-24 03:37:33,384 WARN L202 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-24 03:37:35,135 WARN L202 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:37:35,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:37:35,773 INFO L93 Difference]: Finished difference Result 989 states and 1162 transitions. [2021-02-24 03:37:35,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-24 03:37:35,776 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 165 [2021-02-24 03:37:35,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:37:35,787 INFO L225 Difference]: With dead ends: 989 [2021-02-24 03:37:35,787 INFO L226 Difference]: Without dead ends: 705 [2021-02-24 03:37:35,790 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2021-02-24 03:37:35,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 705 states. [2021-02-24 03:37:36,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 705 to 589. [2021-02-24 03:37:36,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 589 states. [2021-02-24 03:37:36,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 651 transitions. [2021-02-24 03:37:36,083 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 651 transitions. Word has length 165 [2021-02-24 03:37:36,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:37:36,083 INFO L480 AbstractCegarLoop]: Abstraction has 589 states and 651 transitions. [2021-02-24 03:37:36,083 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-24 03:37:36,084 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 651 transitions. [2021-02-24 03:37:36,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2021-02-24 03:37:36,086 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:37:36,086 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 03:37:36,086 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-24 03:37:36,086 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:37:36,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:37:36,087 INFO L82 PathProgramCache]: Analyzing trace with hash -1695129984, now seen corresponding path program 1 times [2021-02-24 03:37:36,087 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:37:36,088 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [725689379] [2021-02-24 03:37:36,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:37:36,091 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:37:36,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:37:36,158 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:36,159 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:37:36,161 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:36,162 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:37:36,162 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:36,163 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:37:36,166 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:36,167 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:37:36,172 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:36,172 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 03:37:36,179 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:36,180 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 03:37:36,180 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:36,182 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 03:37:36,182 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:36,183 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 03:37:36,183 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:36,184 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 03:37:36,190 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:36,190 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 03:37:36,199 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:36,200 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:36,495 WARN L202 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:37:36,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:37:36,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:37:36,551 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:36,552 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:36,553 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:36,553 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 03:37:36,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:37:36,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:37:36,567 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:36,568 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:36,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:37:36,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:37:36,570 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:36,571 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:36,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:37:36,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:37:36,580 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:36,581 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:36,582 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:36,583 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:37:36,601 WARN L141 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size [2021-02-24 03:37:36,602 WARN L147 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size 11 [2021-02-24 03:37:36,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:37:36,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:37:36,625 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:36,626 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:36,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-02-24 03:37:36,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:37:36,646 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:36,648 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:36,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-02-24 03:37:36,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:37:36,654 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:36,654 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:36,655 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:36,655 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:37:36,671 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:36,673 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:37:36,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-02-24 03:37:36,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:37:36,691 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:36,692 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:36,741 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 03:37:36,742 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [725689379] [2021-02-24 03:37:36,742 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:37:36,742 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-02-24 03:37:36,742 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20498075] [2021-02-24 03:37:36,743 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-02-24 03:37:36,743 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:37:36,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-02-24 03:37:36,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2021-02-24 03:37:36,745 INFO L87 Difference]: Start difference. First operand 589 states and 651 transitions. Second operand 14 states. [2021-02-24 03:37:37,394 WARN L202 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-24 03:37:37,834 WARN L202 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:37:38,214 WARN L202 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-24 03:37:38,608 WARN L202 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:37:38,957 WARN L202 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:37:39,318 WARN L202 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:37:40,123 WARN L202 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:37:40,981 WARN L202 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:37:41,401 WARN L202 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:37:41,831 WARN L202 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:37:42,246 WARN L202 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:37:42,626 WARN L202 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-24 03:37:43,014 WARN L202 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-24 03:37:43,388 WARN L202 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:37:43,804 WARN L202 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:37:44,266 WARN L202 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-24 03:37:44,654 WARN L202 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:37:45,936 WARN L202 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-24 03:37:46,276 WARN L202 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:37:46,771 WARN L202 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:37:48,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:37:48,321 INFO L93 Difference]: Finished difference Result 1915 states and 2304 transitions. [2021-02-24 03:37:48,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-02-24 03:37:48,322 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 166 [2021-02-24 03:37:48,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:37:48,331 INFO L225 Difference]: With dead ends: 1915 [2021-02-24 03:37:48,331 INFO L226 Difference]: Without dead ends: 1441 [2021-02-24 03:37:48,334 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=252, Invalid=1008, Unknown=0, NotChecked=0, Total=1260 [2021-02-24 03:37:48,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1441 states. [2021-02-24 03:37:48,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1441 to 1322. [2021-02-24 03:37:48,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1322 states. [2021-02-24 03:37:49,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1322 states to 1322 states and 1498 transitions. [2021-02-24 03:37:49,011 INFO L78 Accepts]: Start accepts. Automaton has 1322 states and 1498 transitions. Word has length 166 [2021-02-24 03:37:49,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:37:49,012 INFO L480 AbstractCegarLoop]: Abstraction has 1322 states and 1498 transitions. [2021-02-24 03:37:49,012 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2021-02-24 03:37:49,012 INFO L276 IsEmpty]: Start isEmpty. Operand 1322 states and 1498 transitions. [2021-02-24 03:37:49,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2021-02-24 03:37:49,018 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:37:49,018 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 03:37:49,019 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-24 03:37:49,019 INFO L428 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:37:49,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:37:49,019 INFO L82 PathProgramCache]: Analyzing trace with hash 1674567031, now seen corresponding path program 1 times [2021-02-24 03:37:49,020 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:37:49,022 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [419600809] [2021-02-24 03:37:49,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:37:49,096 WARN L141 QuantifierPusher]: treesize reduction 5, result has 94.6 percent of original size [2021-02-24 03:37:49,131 WARN L147 QuantifierPusher]: treesize reduction 5, result has 94.6 percent of original size 87 [2021-02-24 03:37:49,145 WARN L141 QuantifierPusher]: treesize reduction 5, result has 94.6 percent of original size [2021-02-24 03:37:49,155 WARN L147 QuantifierPusher]: treesize reduction 5, result has 94.6 percent of original size 87 [2021-02-24 03:37:49,214 WARN L141 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size [2021-02-24 03:37:49,228 WARN L147 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size 8 [2021-02-24 03:37:49,240 WARN L141 QuantifierPusher]: treesize reduction 14, result has 79.4 percent of original size [2021-02-24 03:37:49,244 WARN L147 QuantifierPusher]: treesize reduction 14, result has 79.4 percent of original size 54 [2021-02-24 03:37:49,252 WARN L141 QuantifierPusher]: treesize reduction 5, result has 94.6 percent of original size [2021-02-24 03:37:49,259 WARN L147 QuantifierPusher]: treesize reduction 5, result has 94.6 percent of original size 87 [2021-02-24 03:37:49,264 WARN L141 QuantifierPusher]: treesize reduction 5, result has 94.6 percent of original size [2021-02-24 03:37:49,273 WARN L147 QuantifierPusher]: treesize reduction 5, result has 94.6 percent of original size 87 [2021-02-24 03:37:49,325 WARN L141 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size [2021-02-24 03:37:49,327 WARN L147 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size 8 [2021-02-24 03:37:49,330 WARN L141 QuantifierPusher]: treesize reduction 14, result has 79.4 percent of original size [2021-02-24 03:37:49,333 WARN L147 QuantifierPusher]: treesize reduction 14, result has 79.4 percent of original size 54 [2021-02-24 03:37:49,335 WARN L141 QuantifierPusher]: treesize reduction 5, result has 94.6 percent of original size [2021-02-24 03:37:49,340 WARN L147 QuantifierPusher]: treesize reduction 5, result has 94.6 percent of original size 87 [2021-02-24 03:37:49,343 WARN L141 QuantifierPusher]: treesize reduction 5, result has 94.6 percent of original size [2021-02-24 03:37:49,348 WARN L147 QuantifierPusher]: treesize reduction 5, result has 94.6 percent of original size 87 [2021-02-24 03:37:49,397 WARN L141 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size [2021-02-24 03:37:49,398 WARN L147 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size 8 [2021-02-24 03:37:49,403 WARN L141 QuantifierPusher]: treesize reduction 14, result has 79.4 percent of original size [2021-02-24 03:37:49,405 WARN L147 QuantifierPusher]: treesize reduction 14, result has 79.4 percent of original size 54 [2021-02-24 03:37:49,407 WARN L141 QuantifierPusher]: treesize reduction 3, result has 96.7 percent of original size [2021-02-24 03:37:49,412 WARN L147 QuantifierPusher]: treesize reduction 3, result has 96.7 percent of original size 89 [2021-02-24 03:37:49,415 WARN L141 QuantifierPusher]: treesize reduction 3, result has 96.7 percent of original size [2021-02-24 03:37:49,421 WARN L147 QuantifierPusher]: treesize reduction 3, result has 96.7 percent of original size 89 [2021-02-24 03:37:49,497 WARN L141 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size [2021-02-24 03:37:49,499 WARN L147 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size 8 [2021-02-24 03:37:49,501 WARN L141 QuantifierPusher]: treesize reduction 14, result has 79.4 percent of original size [2021-02-24 03:37:49,504 WARN L147 QuantifierPusher]: treesize reduction 14, result has 79.4 percent of original size 54 [2021-02-24 03:37:49,507 WARN L141 QuantifierPusher]: treesize reduction 3, result has 96.7 percent of original size [2021-02-24 03:37:49,512 WARN L147 QuantifierPusher]: treesize reduction 3, result has 96.7 percent of original size 89 [2021-02-24 03:37:49,516 WARN L141 QuantifierPusher]: treesize reduction 3, result has 96.7 percent of original size [2021-02-24 03:37:49,520 WARN L147 QuantifierPusher]: treesize reduction 3, result has 96.7 percent of original size 89 [2021-02-24 03:37:49,573 WARN L141 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size [2021-02-24 03:37:49,575 WARN L147 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size 8 [2021-02-24 03:37:49,577 WARN L141 QuantifierPusher]: treesize reduction 14, result has 79.4 percent of original size [2021-02-24 03:37:49,579 WARN L147 QuantifierPusher]: treesize reduction 14, result has 79.4 percent of original size 54 [2021-02-24 03:37:49,581 WARN L141 QuantifierPusher]: treesize reduction 5, result has 94.6 percent of original size [2021-02-24 03:37:49,585 WARN L147 QuantifierPusher]: treesize reduction 5, result has 94.6 percent of original size 87 [2021-02-24 03:37:49,589 WARN L141 QuantifierPusher]: treesize reduction 5, result has 94.6 percent of original size [2021-02-24 03:37:49,593 WARN L147 QuantifierPusher]: treesize reduction 5, result has 94.6 percent of original size 87 [2021-02-24 03:37:49,642 WARN L141 QuantifierPusher]: treesize reduction 6, result has 87.8 percent of original size [2021-02-24 03:37:49,646 INFO L723 QuantifierPusher]: Distributing 10 disjuncts over 3 conjuncts [2021-02-24 03:37:49,655 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:49,655 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 03:37:49,658 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:49,663 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 115 [2021-02-24 03:37:49,667 WARN L147 QuantifierPusher]: treesize reduction 6, result has 87.8 percent of original size 43 [2021-02-24 03:37:49,672 WARN L141 QuantifierPusher]: treesize reduction 14, result has 89.8 percent of original size [2021-02-24 03:37:49,676 WARN L147 QuantifierPusher]: treesize reduction 14, result has 89.8 percent of original size 123 [2021-02-24 03:37:49,679 WARN L141 QuantifierPusher]: treesize reduction 3, result has 96.7 percent of original size [2021-02-24 03:37:49,683 WARN L147 QuantifierPusher]: treesize reduction 3, result has 96.7 percent of original size 89 [2021-02-24 03:37:49,685 WARN L141 QuantifierPusher]: treesize reduction 3, result has 96.7 percent of original size [2021-02-24 03:37:49,689 WARN L147 QuantifierPusher]: treesize reduction 3, result has 96.7 percent of original size 89 [2021-02-24 03:37:49,736 WARN L141 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size [2021-02-24 03:37:49,740 WARN L147 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size 8 [2021-02-24 03:37:49,742 WARN L141 QuantifierPusher]: treesize reduction 14, result has 79.4 percent of original size [2021-02-24 03:37:49,744 WARN L147 QuantifierPusher]: treesize reduction 14, result has 79.4 percent of original size 54 [2021-02-24 03:37:49,746 WARN L141 QuantifierPusher]: treesize reduction 3, result has 96.7 percent of original size [2021-02-24 03:37:49,750 WARN L147 QuantifierPusher]: treesize reduction 3, result has 96.7 percent of original size 89 [2021-02-24 03:37:49,752 WARN L141 QuantifierPusher]: treesize reduction 3, result has 96.7 percent of original size [2021-02-24 03:37:49,757 WARN L147 QuantifierPusher]: treesize reduction 3, result has 96.7 percent of original size 89 [2021-02-24 03:37:49,806 WARN L141 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size [2021-02-24 03:37:49,809 WARN L147 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size 8 [2021-02-24 03:37:49,811 WARN L141 QuantifierPusher]: treesize reduction 14, result has 79.4 percent of original size [2021-02-24 03:37:49,813 WARN L147 QuantifierPusher]: treesize reduction 14, result has 79.4 percent of original size 54 [2021-02-24 03:37:49,814 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-24 03:37:49,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:37:49,898 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:49,898 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:49,899 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:49,899 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:37:49,902 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:49,903 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:37:49,906 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:49,907 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:37:49,912 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:49,912 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:50,192 WARN L202 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:37:50,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:37:50,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:37:50,222 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:50,223 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:50,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:37:50,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:37:50,230 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:50,230 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:50,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:37:50,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:37:50,232 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:50,232 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:50,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:37:50,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:37:50,235 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:50,235 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:50,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:37:50,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:37:50,237 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:50,238 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:50,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-24 03:37:50,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:37:50,249 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:50,250 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:50,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-02-24 03:37:50,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:37:50,252 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:50,253 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:50,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-02-24 03:37:50,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:37:50,256 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:50,257 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:50,257 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:50,258 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:37:50,267 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:50,268 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:37:50,323 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 03:37:50,326 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:50,328 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 03:37:50,329 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:50,329 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:37:50,330 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-02-24 03:37:50,331 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:50,332 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 03:37:50,333 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:50,334 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:37:50,334 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-02-24 03:37:50,335 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:50,337 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 03:37:50,337 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:50,338 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:37:50,338 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-02-24 03:37:50,339 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:50,340 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 03:37:50,341 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:50,341 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:37:50,342 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-02-24 03:37:50,343 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:50,344 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 03:37:50,345 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:50,345 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:37:50,346 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-02-24 03:37:50,348 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:50,351 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 03:37:50,353 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:50,354 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-02-24 03:37:50,355 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 116 [2021-02-24 03:37:50,356 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:50,357 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:50,357 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:50,358 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:37:50,370 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:50,371 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-24 03:37:50,389 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:50,390 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-24 03:37:50,412 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:50,413 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-24 03:37:50,433 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:50,434 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-24 03:37:50,460 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:50,462 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 03:37:50,462 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:50,463 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-24 03:37:50,464 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 03:37:50,464 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:50,465 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:37:50,466 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-24 03:37:50,485 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:50,485 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-24 03:37:50,486 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:50,487 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-24 03:37:50,514 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:50,515 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-02-24 03:37:50,544 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:50,545 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-24 03:37:50,546 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:50,547 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 03:37:50,547 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:50,548 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:37:50,548 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 03:37:50,549 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:50,550 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-24 03:37:50,550 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-24 03:37:50,591 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:50,591 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-24 03:37:50,615 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:50,615 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-24 03:37:50,642 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:50,644 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-24 03:37:50,671 WARN L141 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-02-24 03:37:50,671 WARN L147 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size 7 [2021-02-24 03:37:50,695 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:50,695 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-24 03:37:50,724 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:50,724 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-02-24 03:37:50,772 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:50,774 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-24 03:37:50,807 WARN L141 QuantifierPusher]: treesize reduction 8, result has 55.6 percent of original size [2021-02-24 03:37:50,808 WARN L147 QuantifierPusher]: treesize reduction 8, result has 55.6 percent of original size 10 [2021-02-24 03:37:50,848 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:50,850 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-02-24 03:37:50,888 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:50,889 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-24 03:37:50,935 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:50,937 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-24 03:37:50,979 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:50,981 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-24 03:37:51,032 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:51,033 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 03:37:51,034 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:51,035 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-24 03:37:51,035 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-24 03:37:51,089 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:51,090 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-24 03:37:51,091 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:51,091 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-02-24 03:37:51,146 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:51,148 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-24 03:37:51,225 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:51,226 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-24 03:37:51,228 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:51,229 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 03:37:51,230 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:51,230 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-24 03:37:51,231 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-24 03:37:51,286 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:51,287 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-24 03:37:51,329 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:51,330 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-24 03:37:51,331 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:51,332 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-24 03:37:51,333 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:51,333 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-24 03:37:51,334 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:51,334 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-24 03:37:51,335 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 10 [2021-02-24 03:37:51,336 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:51,336 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-24 03:37:51,337 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:51,337 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-24 03:37:51,338 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:51,338 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-24 03:37:51,339 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:51,339 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-24 03:37:51,340 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:51,340 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-24 03:37:51,341 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:51,341 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-24 03:37:51,376 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:51,377 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-24 03:37:51,416 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:51,416 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-24 03:37:51,417 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:51,418 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-02-24 03:37:51,453 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:51,454 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-24 03:37:51,518 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:51,519 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-24 03:37:51,573 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:51,574 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-24 03:37:51,626 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:51,627 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-24 03:37:51,685 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:51,686 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-24 03:37:51,687 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:51,688 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-24 03:37:51,745 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:51,747 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-24 03:37:51,749 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 26 [2021-02-24 03:37:51,754 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:37:51,755 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:37:51,755 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [419600809] [2021-02-24 03:37:51,755 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:37:51,755 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [40] imperfect sequences [] total 40 [2021-02-24 03:37:51,755 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592172570] [2021-02-24 03:37:51,756 INFO L460 AbstractCegarLoop]: Interpolant automaton has 40 states [2021-02-24 03:37:51,756 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:37:51,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-02-24 03:37:51,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=199, Invalid=1523, Unknown=0, NotChecked=0, Total=1722 [2021-02-24 03:37:51,757 INFO L87 Difference]: Start difference. First operand 1322 states and 1498 transitions. Second operand 40 states. [2021-02-24 03:37:52,425 WARN L202 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:37:53,103 WARN L202 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-24 03:37:53,514 WARN L202 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2021-02-24 03:37:53,932 WARN L202 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2021-02-24 03:37:54,339 WARN L202 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2021-02-24 03:37:54,767 WARN L202 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2021-02-24 03:37:55,270 WARN L202 SmtUtils]: Spent 435.00 ms on a formula simplification that was a NOOP. DAG size: 219 [2021-02-24 03:37:55,740 WARN L202 SmtUtils]: Spent 411.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2021-02-24 03:37:56,171 WARN L202 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2021-02-24 03:37:56,639 WARN L202 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 219 [2021-02-24 03:37:57,056 WARN L202 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2021-02-24 03:37:57,563 WARN L202 SmtUtils]: Spent 395.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2021-02-24 03:37:58,070 WARN L202 SmtUtils]: Spent 403.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2021-02-24 03:37:58,589 WARN L202 SmtUtils]: Spent 392.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2021-02-24 03:37:59,098 WARN L202 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 219 [2021-02-24 03:37:59,652 WARN L202 SmtUtils]: Spent 418.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2021-02-24 03:38:00,232 WARN L202 SmtUtils]: Spent 392.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2021-02-24 03:38:00,763 WARN L202 SmtUtils]: Spent 397.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2021-02-24 03:38:01,298 WARN L202 SmtUtils]: Spent 411.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2021-02-24 03:38:01,830 WARN L202 SmtUtils]: Spent 398.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2021-02-24 03:38:02,743 WARN L202 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:38:03,538 WARN L202 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-24 03:38:04,052 WARN L202 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-24 03:38:04,518 WARN L202 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-24 03:38:04,947 WARN L202 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2021-02-24 03:38:05,384 WARN L202 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2021-02-24 03:38:05,810 WARN L202 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2021-02-24 03:38:06,265 WARN L202 SmtUtils]: Spent 397.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2021-02-24 03:38:06,724 WARN L202 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2021-02-24 03:38:07,891 WARN L202 SmtUtils]: Spent 408.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2021-02-24 03:38:08,425 WARN L202 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-24 03:38:09,302 WARN L202 SmtUtils]: Spent 810.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 222 [2021-02-24 03:38:12,181 WARN L202 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2021-02-24 03:38:13,536 WARN L202 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2021-02-24 03:38:14,180 WARN L202 SmtUtils]: Spent 394.00 ms on a formula simplification that was a NOOP. DAG size: 219 [2021-02-24 03:38:14,630 WARN L202 SmtUtils]: Spent 390.00 ms on a formula simplification that was a NOOP. DAG size: 216 [2021-02-24 03:38:15,324 WARN L202 SmtUtils]: Spent 412.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2021-02-24 03:38:16,138 WARN L202 SmtUtils]: Spent 726.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 214 [2021-02-24 03:38:16,641 WARN L202 SmtUtils]: Spent 401.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2021-02-24 03:38:17,739 WARN L202 SmtUtils]: Spent 805.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 216 [2021-02-24 03:38:18,290 WARN L202 SmtUtils]: Spent 405.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2021-02-24 03:38:18,798 WARN L202 SmtUtils]: Spent 408.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2021-02-24 03:38:19,320 WARN L202 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 216 [2021-02-24 03:38:19,898 WARN L202 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 216 [2021-02-24 03:38:22,091 WARN L202 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-24 03:38:22,556 WARN L202 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2021-02-24 03:38:23,149 WARN L202 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-24 03:38:23,961 WARN L202 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2021-02-24 03:38:24,754 WARN L202 SmtUtils]: Spent 385.00 ms on a formula simplification that was a NOOP. DAG size: 216 [2021-02-24 03:38:25,301 WARN L202 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2021-02-24 03:38:26,407 WARN L202 SmtUtils]: Spent 411.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2021-02-24 03:38:27,325 WARN L202 SmtUtils]: Spent 799.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 218 [2021-02-24 03:38:28,195 WARN L202 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:38:28,726 WARN L202 SmtUtils]: Spent 397.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:38:29,369 WARN L202 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:38:29,884 WARN L202 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:38:30,318 WARN L202 SmtUtils]: Spent 389.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-24 03:38:30,790 WARN L202 SmtUtils]: Spent 404.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:38:31,236 WARN L202 SmtUtils]: Spent 391.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-24 03:38:31,661 WARN L202 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:38:36,417 WARN L202 SmtUtils]: Spent 444.00 ms on a formula simplification that was a NOOP. DAG size: 227 [2021-02-24 03:38:37,122 WARN L202 SmtUtils]: Spent 442.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2021-02-24 03:38:37,858 WARN L202 SmtUtils]: Spent 456.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2021-02-24 03:38:38,619 WARN L202 SmtUtils]: Spent 480.00 ms on a formula simplification that was a NOOP. DAG size: 227 [2021-02-24 03:38:42,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:38:42,808 INFO L93 Difference]: Finished difference Result 2365 states and 2955 transitions. [2021-02-24 03:38:42,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 314 states. [2021-02-24 03:38:42,814 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 210 [2021-02-24 03:38:42,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:38:42,821 INFO L225 Difference]: With dead ends: 2365 [2021-02-24 03:38:42,821 INFO L226 Difference]: Without dead ends: 994 [2021-02-24 03:38:42,858 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 443 GetRequests, 94 SyntacticMatches, 1 SemanticMatches, 348 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52941 ImplicationChecksByTransitivity, 43.2s TimeCoverageRelationStatistics Valid=9963, Invalid=112187, Unknown=0, NotChecked=0, Total=122150 [2021-02-24 03:38:42,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 994 states. [2021-02-24 03:38:43,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 994 to 622. [2021-02-24 03:38:43,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 622 states. [2021-02-24 03:38:43,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 622 states and 685 transitions. [2021-02-24 03:38:43,183 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 685 transitions. Word has length 210 [2021-02-24 03:38:43,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:38:43,183 INFO L480 AbstractCegarLoop]: Abstraction has 622 states and 685 transitions. [2021-02-24 03:38:43,183 INFO L481 AbstractCegarLoop]: Interpolant automaton has 40 states. [2021-02-24 03:38:43,183 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 685 transitions. [2021-02-24 03:38:43,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2021-02-24 03:38:43,188 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:38:43,189 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:38:43,189 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-24 03:38:43,189 INFO L428 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:38:43,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:38:43,190 INFO L82 PathProgramCache]: Analyzing trace with hash 788070914, now seen corresponding path program 1 times [2021-02-24 03:38:43,190 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:38:43,190 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [155043433] [2021-02-24 03:38:43,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:38:43,220 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-02-24 03:38:43,228 INFO L168 Benchmark]: Toolchain (without parser) took 85316.42 ms. Allocated memory was 151.0 MB in the beginning and 690.0 MB in the end (delta: 539.0 MB). Free memory was 126.5 MB in the beginning and 527.4 MB in the end (delta: -400.9 MB). Peak memory consumption was 138.8 MB. Max. memory is 8.0 GB. [2021-02-24 03:38:43,228 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 151.0 MB. Free memory was 125.7 MB in the beginning and 125.2 MB in the end (delta: 436.7 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-02-24 03:38:43,228 INFO L168 Benchmark]: CACSL2BoogieTranslator took 573.76 ms. Allocated memory is still 151.0 MB. Free memory was 125.6 MB in the beginning and 104.9 MB in the end (delta: 20.7 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2021-02-24 03:38:43,228 INFO L168 Benchmark]: Boogie Preprocessor took 94.40 ms. Allocated memory is still 151.0 MB. Free memory was 104.9 MB in the beginning and 101.1 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-02-24 03:38:43,229 INFO L168 Benchmark]: RCFGBuilder took 1462.10 ms. Allocated memory is still 151.0 MB. Free memory was 101.0 MB in the beginning and 125.8 MB in the end (delta: -24.8 MB). Peak memory consumption was 50.1 MB. Max. memory is 8.0 GB. [2021-02-24 03:38:43,229 INFO L168 Benchmark]: TraceAbstraction took 83162.91 ms. Allocated memory was 151.0 MB in the beginning and 690.0 MB in the end (delta: 539.0 MB). Free memory was 125.3 MB in the beginning and 527.4 MB in the end (delta: -402.0 MB). Peak memory consumption was 136.9 MB. Max. memory is 8.0 GB. [2021-02-24 03:38:43,232 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 151.0 MB. Free memory was 125.7 MB in the beginning and 125.2 MB in the end (delta: 436.7 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 573.76 ms. Allocated memory is still 151.0 MB. Free memory was 125.6 MB in the beginning and 104.9 MB in the end (delta: 20.7 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 94.40 ms. Allocated memory is still 151.0 MB. Free memory was 104.9 MB in the beginning and 101.1 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1462.10 ms. Allocated memory is still 151.0 MB. Free memory was 101.0 MB in the beginning and 125.8 MB in the end (delta: -24.8 MB). Peak memory consumption was 50.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 83162.91 ms. Allocated memory was 151.0 MB in the beginning and 690.0 MB in the end (delta: 539.0 MB). Free memory was 125.3 MB in the beginning and 527.4 MB in the end (delta: -402.0 MB). Peak memory consumption was 136.9 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...