/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product44.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 20:11:18,496 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 20:11:18,502 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 20:11:18,561 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 20:11:18,562 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 20:11:18,566 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 20:11:18,571 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 20:11:18,579 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 20:11:18,583 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 20:11:18,589 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 20:11:18,591 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 20:11:18,593 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 20:11:18,593 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 20:11:18,597 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 20:11:18,599 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 20:11:18,601 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 20:11:18,602 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 20:11:18,605 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 20:11:18,614 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 20:11:18,624 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 20:11:18,628 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 20:11:18,630 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 20:11:18,631 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 20:11:18,634 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 20:11:18,643 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 20:11:18,644 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 20:11:18,659 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 20:11:18,662 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 20:11:18,663 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 20:11:18,664 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 20:11:18,664 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 20:11:18,665 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 20:11:18,667 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 20:11:18,668 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 20:11:18,669 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 20:11:18,670 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 20:11:18,670 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 20:11:18,671 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 20:11:18,671 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 20:11:18,672 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 20:11:18,673 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 20:11:18,674 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-23 20:11:18,703 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 20:11:18,704 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 20:11:18,708 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 20:11:18,709 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 20:11:18,709 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 20:11:18,709 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 20:11:18,710 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 20:11:18,710 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 20:11:18,711 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 20:11:18,711 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 20:11:18,712 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 20:11:18,713 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 20:11:18,713 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 20:11:18,714 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 20:11:18,714 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 20:11:18,714 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 20:11:18,714 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 20:11:18,715 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 20:11:18,715 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 20:11:18,715 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 20:11:18,715 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 20:11:18,715 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 20:11:18,716 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 20:11:19,138 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 20:11:19,174 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 20:11:19,178 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 20:11:19,180 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 20:11:19,180 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 20:11:19,182 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product44.cil.c [2020-10-23 20:11:19,282 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e1f1979d/caa41e245dbf4bbe97a3328b365c7e12/FLAG45a08f6a4 [2020-10-23 20:11:20,177 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 20:11:20,178 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product44.cil.c [2020-10-23 20:11:20,194 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e1f1979d/caa41e245dbf4bbe97a3328b365c7e12/FLAG45a08f6a4 [2020-10-23 20:11:20,463 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e1f1979d/caa41e245dbf4bbe97a3328b365c7e12 [2020-10-23 20:11:20,466 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 20:11:20,476 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 20:11:20,482 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 20:11:20,483 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 20:11:20,487 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 20:11:20,488 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:11:20" (1/1) ... [2020-10-23 20:11:20,492 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cc6e336 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:11:20, skipping insertion in model container [2020-10-23 20:11:20,493 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:11:20" (1/1) ... [2020-10-23 20:11:20,502 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 20:11:20,582 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 20:11:20,953 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:11:20,969 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 20:11:21,093 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:11:21,139 INFO L208 MainTranslator]: Completed translation [2020-10-23 20:11:21,140 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:11:21 WrapperNode [2020-10-23 20:11:21,140 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 20:11:21,141 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 20:11:21,142 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 20:11:21,142 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 20:11:21,161 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:11:21" (1/1) ... [2020-10-23 20:11:21,162 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:11:21" (1/1) ... [2020-10-23 20:11:21,183 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:11:21" (1/1) ... [2020-10-23 20:11:21,184 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:11:21" (1/1) ... [2020-10-23 20:11:21,260 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:11:21" (1/1) ... [2020-10-23 20:11:21,280 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:11:21" (1/1) ... [2020-10-23 20:11:21,289 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:11:21" (1/1) ... [2020-10-23 20:11:21,322 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 20:11:21,324 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 20:11:21,324 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 20:11:21,324 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 20:11:21,326 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:11:21" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 20:11:21,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 20:11:21,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 20:11:21,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 20:11:21,438 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 20:11:21,438 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-10-23 20:11:21,438 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 20:11:21,439 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 20:11:21,439 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 20:11:21,439 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 20:11:21,439 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 20:11:21,439 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 20:11:21,440 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 20:11:21,440 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 20:11:21,440 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 20:11:21,440 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 20:11:21,440 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 20:11:21,441 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 20:11:21,441 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-23 20:11:21,441 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 20:11:21,441 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-10-23 20:11:21,441 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 20:11:21,441 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 20:11:21,442 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 20:11:21,442 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 20:11:21,442 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 20:11:21,442 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-23 20:11:21,442 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-23 20:11:21,442 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-10-23 20:11:21,443 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 20:11:21,443 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 20:11:21,443 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 20:11:21,443 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 20:11:21,443 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 20:11:21,443 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 20:11:21,444 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 20:11:21,444 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 20:11:21,444 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 20:11:21,444 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 20:11:21,444 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 20:11:21,445 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 20:11:21,445 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-23 20:11:21,445 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 20:11:21,445 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 20:11:21,446 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 20:11:21,446 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 20:11:21,446 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 20:11:21,446 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 20:11:21,446 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 20:11:21,446 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 20:11:21,447 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 20:11:21,447 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-10-23 20:11:21,447 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 20:11:21,447 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 20:11:21,447 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 20:11:21,448 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 20:11:21,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 20:11:21,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 20:11:21,448 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 20:11:21,448 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 20:11:21,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 20:11:21,449 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 20:11:21,449 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 20:11:21,449 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 20:11:21,449 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 20:11:21,450 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 20:11:21,450 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 20:11:21,450 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 20:11:21,450 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 20:11:21,450 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 20:11:21,451 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 20:11:21,451 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 20:11:21,451 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 20:11:21,451 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-10-23 20:11:21,451 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-23 20:11:21,451 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 20:11:21,452 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 20:11:21,452 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 20:11:21,452 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 20:11:21,452 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 20:11:21,452 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 20:11:21,452 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-23 20:11:21,452 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 20:11:21,453 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 20:11:21,453 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 20:11:21,453 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 20:11:21,453 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-23 20:11:21,453 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-23 20:11:21,453 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-10-23 20:11:21,454 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 20:11:21,454 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 20:11:21,454 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 20:11:21,454 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 20:11:21,454 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 20:11:21,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 20:11:21,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 20:11:21,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 20:11:23,248 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 20:11:23,248 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 20:11:23,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:11:23 BoogieIcfgContainer [2020-10-23 20:11:23,252 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 20:11:23,254 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 20:11:23,255 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 20:11:23,258 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 20:11:23,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 08:11:20" (1/3) ... [2020-10-23 20:11:23,260 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d32fec1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:11:23, skipping insertion in model container [2020-10-23 20:11:23,260 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:11:21" (2/3) ... [2020-10-23 20:11:23,260 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d32fec1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:11:23, skipping insertion in model container [2020-10-23 20:11:23,260 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:11:23" (3/3) ... [2020-10-23 20:11:23,262 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product44.cil.c [2020-10-23 20:11:23,272 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 20:11:23,279 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 20:11:23,292 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 20:11:23,318 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 20:11:23,319 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 20:11:23,319 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 20:11:23,319 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 20:11:23,319 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 20:11:23,319 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 20:11:23,319 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 20:11:23,320 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 20:11:23,344 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states. [2020-10-23 20:11:23,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-23 20:11:23,368 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:11:23,369 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] [2020-10-23 20:11:23,370 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:11:23,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:11:23,378 INFO L82 PathProgramCache]: Analyzing trace with hash 2015353966, now seen corresponding path program 1 times [2020-10-23 20:11:23,388 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:11:23,388 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1248320184] [2020-10-23 20:11:23,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:11:23,486 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:11:23,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:24,312 WARN L193 SmtUtils]: Spent 444.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:11:24,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:11:24,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:24,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:11:24,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:24,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:11:24,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:24,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:11:24,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:24,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:11:24,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:24,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 20:11:24,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:24,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 20:11:24,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:24,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:11:24,632 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1248320184] [2020-10-23 20:11:24,636 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:11:24,642 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 20:11:24,643 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222946166] [2020-10-23 20:11:24,652 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 20:11:24,653 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:11:24,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 20:11:24,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 20:11:24,673 INFO L87 Difference]: Start difference. First operand 322 states. Second operand 3 states. [2020-10-23 20:11:26,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:11:26,888 INFO L93 Difference]: Finished difference Result 504 states and 593 transitions. [2020-10-23 20:11:26,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 20:11:26,891 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 148 [2020-10-23 20:11:26,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:11:26,930 INFO L225 Difference]: With dead ends: 504 [2020-10-23 20:11:26,931 INFO L226 Difference]: Without dead ends: 312 [2020-10-23 20:11:26,941 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 20:11:26,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2020-10-23 20:11:27,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 268. [2020-10-23 20:11:27,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 268 states. [2020-10-23 20:11:27,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 288 transitions. [2020-10-23 20:11:27,265 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 288 transitions. Word has length 148 [2020-10-23 20:11:27,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:11:27,269 INFO L481 AbstractCegarLoop]: Abstraction has 268 states and 288 transitions. [2020-10-23 20:11:27,269 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 20:11:27,269 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 288 transitions. [2020-10-23 20:11:27,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-23 20:11:27,277 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:11:27,277 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] [2020-10-23 20:11:27,277 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 20:11:27,278 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:11:27,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:11:27,278 INFO L82 PathProgramCache]: Analyzing trace with hash -276982416, now seen corresponding path program 1 times [2020-10-23 20:11:27,278 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:11:27,279 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1217367339] [2020-10-23 20:11:27,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:11:27,293 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:11:27,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:27,944 WARN L193 SmtUtils]: Spent 415.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:11:27,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:11:27,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:28,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:11:28,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:28,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:11:28,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:28,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:11:28,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:28,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:11:28,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:28,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 20:11:28,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:28,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 20:11:28,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:28,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:11:28,124 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1217367339] [2020-10-23 20:11:28,124 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:11:28,124 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 20:11:28,124 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544293303] [2020-10-23 20:11:28,127 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 20:11:28,129 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:11:28,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 20:11:28,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 20:11:28,130 INFO L87 Difference]: Start difference. First operand 268 states and 288 transitions. Second operand 4 states. [2020-10-23 20:11:29,253 WARN L193 SmtUtils]: Spent 410.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:11:30,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:11:30,572 INFO L93 Difference]: Finished difference Result 405 states and 450 transitions. [2020-10-23 20:11:30,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 20:11:30,573 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 149 [2020-10-23 20:11:30,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:11:30,577 INFO L225 Difference]: With dead ends: 405 [2020-10-23 20:11:30,578 INFO L226 Difference]: Without dead ends: 295 [2020-10-23 20:11:30,580 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-23 20:11:30,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2020-10-23 20:11:30,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 258. [2020-10-23 20:11:30,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 258 states. [2020-10-23 20:11:30,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 275 transitions. [2020-10-23 20:11:30,710 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 275 transitions. Word has length 149 [2020-10-23 20:11:30,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:11:30,711 INFO L481 AbstractCegarLoop]: Abstraction has 258 states and 275 transitions. [2020-10-23 20:11:30,711 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 20:11:30,711 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 275 transitions. [2020-10-23 20:11:30,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-10-23 20:11:30,714 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:11:30,715 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] [2020-10-23 20:11:30,715 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 20:11:30,715 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:11:30,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:11:30,716 INFO L82 PathProgramCache]: Analyzing trace with hash -637965382, now seen corresponding path program 1 times [2020-10-23 20:11:30,716 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:11:30,717 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [569787229] [2020-10-23 20:11:30,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:11:30,721 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:11:30,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:31,282 WARN L193 SmtUtils]: Spent 421.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:11:31,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:11:31,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:31,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:11:31,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:31,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:11:31,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:31,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:11:31,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:31,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:11:31,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:31,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-23 20:11:31,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:31,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-23 20:11:31,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:31,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-23 20:11:31,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:31,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:11:31,477 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [569787229] [2020-10-23 20:11:31,477 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:11:31,477 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 20:11:31,477 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511251644] [2020-10-23 20:11:31,478 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 20:11:31,478 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:11:31,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 20:11:31,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 20:11:31,480 INFO L87 Difference]: Start difference. First operand 258 states and 275 transitions. Second operand 10 states. [2020-10-23 20:11:32,283 WARN L193 SmtUtils]: Spent 392.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:11:32,816 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:11:33,271 WARN L193 SmtUtils]: Spent 427.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 20:11:33,711 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:11:34,136 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:11:34,542 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:11:35,901 WARN L193 SmtUtils]: Spent 394.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:11:39,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:11:39,187 INFO L93 Difference]: Finished difference Result 700 states and 804 transitions. [2020-10-23 20:11:39,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-23 20:11:39,191 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 162 [2020-10-23 20:11:39,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:11:39,198 INFO L225 Difference]: With dead ends: 700 [2020-10-23 20:11:39,198 INFO L226 Difference]: Without dead ends: 557 [2020-10-23 20:11:39,201 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-10-23 20:11:39,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2020-10-23 20:11:39,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 448. [2020-10-23 20:11:39,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 448 states. [2020-10-23 20:11:39,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 492 transitions. [2020-10-23 20:11:39,453 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 492 transitions. Word has length 162 [2020-10-23 20:11:39,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:11:39,455 INFO L481 AbstractCegarLoop]: Abstraction has 448 states and 492 transitions. [2020-10-23 20:11:39,455 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 20:11:39,455 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 492 transitions. [2020-10-23 20:11:39,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-10-23 20:11:39,458 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:11:39,459 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:11:39,459 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 20:11:39,459 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:11:39,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:11:39,460 INFO L82 PathProgramCache]: Analyzing trace with hash 1321984462, now seen corresponding path program 1 times [2020-10-23 20:11:39,460 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:11:39,460 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1560324783] [2020-10-23 20:11:39,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:11:39,464 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:11:39,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:39,903 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:11:39,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:11:39,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:39,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:11:39,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:39,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:11:39,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:39,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:11:39,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:40,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:11:40,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:40,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-23 20:11:40,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:40,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-23 20:11:40,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:40,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-23 20:11:40,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:40,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:11:40,175 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1560324783] [2020-10-23 20:11:40,176 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:11:40,176 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-23 20:11:40,176 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51672862] [2020-10-23 20:11:40,177 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-23 20:11:40,177 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:11:40,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-23 20:11:40,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2020-10-23 20:11:40,179 INFO L87 Difference]: Start difference. First operand 448 states and 492 transitions. Second operand 14 states. [2020-10-23 20:11:40,881 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:11:41,390 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:11:41,791 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:11:42,229 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:11:42,645 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:11:43,041 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:11:43,941 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:11:45,357 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:11:45,760 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:11:46,318 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:11:46,771 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:11:47,143 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:11:47,538 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:11:47,941 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:11:48,352 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:11:48,746 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:11:49,270 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:11:49,810 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:11:50,217 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:11:50,661 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:11:53,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:11:53,243 INFO L93 Difference]: Finished difference Result 1531 states and 1880 transitions. [2020-10-23 20:11:53,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-23 20:11:53,249 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 167 [2020-10-23 20:11:53,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:11:53,258 INFO L225 Difference]: With dead ends: 1531 [2020-10-23 20:11:53,259 INFO L226 Difference]: Without dead ends: 1198 [2020-10-23 20:11:53,261 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 8.0s TimeCoverageRelationStatistics Valid=252, Invalid=1008, Unknown=0, NotChecked=0, Total=1260 [2020-10-23 20:11:53,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1198 states. [2020-10-23 20:11:53,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1198 to 1059. [2020-10-23 20:11:53,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1059 states. [2020-10-23 20:11:53,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1059 states to 1059 states and 1217 transitions. [2020-10-23 20:11:53,847 INFO L78 Accepts]: Start accepts. Automaton has 1059 states and 1217 transitions. Word has length 167 [2020-10-23 20:11:53,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:11:53,847 INFO L481 AbstractCegarLoop]: Abstraction has 1059 states and 1217 transitions. [2020-10-23 20:11:53,848 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-23 20:11:53,848 INFO L276 IsEmpty]: Start isEmpty. Operand 1059 states and 1217 transitions. [2020-10-23 20:11:53,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-10-23 20:11:53,852 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:11:53,853 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:11:53,853 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 20:11:53,853 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:11:53,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:11:53,854 INFO L82 PathProgramCache]: Analyzing trace with hash 114173771, now seen corresponding path program 1 times [2020-10-23 20:11:53,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:11:53,855 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1154194658] [2020-10-23 20:11:53,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:11:53,858 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:11:53,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:54,256 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:11:54,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:11:54,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:54,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:11:54,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:54,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:11:54,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:54,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:11:54,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:54,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:11:54,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:54,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-23 20:11:54,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:54,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-23 20:11:54,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:54,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-23 20:11:54,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:54,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-10-23 20:11:54,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:54,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:11:54,424 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1154194658] [2020-10-23 20:11:54,424 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:11:54,424 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 20:11:54,424 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188492593] [2020-10-23 20:11:54,425 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-23 20:11:54,425 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:11:54,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-23 20:11:54,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-23 20:11:54,426 INFO L87 Difference]: Start difference. First operand 1059 states and 1217 transitions. Second operand 6 states. [2020-10-23 20:11:55,099 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:11:57,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:11:57,957 INFO L93 Difference]: Finished difference Result 2472 states and 2986 transitions. [2020-10-23 20:11:57,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-23 20:11:57,958 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 172 [2020-10-23 20:11:57,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:11:57,971 INFO L225 Difference]: With dead ends: 2472 [2020-10-23 20:11:57,972 INFO L226 Difference]: Without dead ends: 1528 [2020-10-23 20:11:57,976 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-10-23 20:11:57,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1528 states. [2020-10-23 20:11:58,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1528 to 1424. [2020-10-23 20:11:58,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1424 states. [2020-10-23 20:11:58,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1424 states to 1424 states and 1648 transitions. [2020-10-23 20:11:58,612 INFO L78 Accepts]: Start accepts. Automaton has 1424 states and 1648 transitions. Word has length 172 [2020-10-23 20:11:58,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:11:58,612 INFO L481 AbstractCegarLoop]: Abstraction has 1424 states and 1648 transitions. [2020-10-23 20:11:58,613 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-23 20:11:58,613 INFO L276 IsEmpty]: Start isEmpty. Operand 1424 states and 1648 transitions. [2020-10-23 20:11:58,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2020-10-23 20:11:58,618 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:11:58,619 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] [2020-10-23 20:11:58,619 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 20:11:58,620 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:11:58,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:11:58,620 INFO L82 PathProgramCache]: Analyzing trace with hash 811968663, now seen corresponding path program 1 times [2020-10-23 20:11:58,621 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:11:58,621 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [24223944] [2020-10-23 20:11:58,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:11:58,795 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 20:11:59,080 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-10-23 20:11:59,310 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-10-23 20:11:59,542 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 20:11:59,761 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 20:11:59,992 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-10-23 20:12:00,243 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:12:00,348 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2020-10-23 20:12:00,523 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 20:12:00,796 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:12:01,054 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 20:12:01,297 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-10-23 20:12:01,542 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:12:01,786 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-10-23 20:12:02,040 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:12:02,309 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:12:02,571 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-10-23 20:12:02,816 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:12:03,086 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 20:12:05,956 WARN L193 SmtUtils]: Spent 637.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:12:08,529 WARN L193 SmtUtils]: Spent 453.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 166 [2020-10-23 20:12:08,555 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:09,805 WARN L193 SmtUtils]: Spent 432.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:12:12,291 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:12:12,297 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:14,789 WARN L193 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 164 [2020-10-23 20:12:14,795 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:17,284 WARN L193 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:12:17,290 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:19,889 WARN L193 SmtUtils]: Spent 483.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:12:22,480 WARN L193 SmtUtils]: Spent 432.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:12:22,485 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:22,490 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:12:23,807 WARN L193 SmtUtils]: Spent 433.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 171 [2020-10-23 20:12:26,375 WARN L193 SmtUtils]: Spent 440.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 171 [2020-10-23 20:12:26,381 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:28,887 WARN L193 SmtUtils]: Spent 418.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 169 [2020-10-23 20:12:28,892 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:31,436 WARN L193 SmtUtils]: Spent 447.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 169 [2020-10-23 20:12:33,931 WARN L193 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 169 [2020-10-23 20:12:36,427 WARN L193 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 169 [2020-10-23 20:12:39,081 WARN L193 SmtUtils]: Spent 511.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 171 [2020-10-23 20:12:39,090 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:40,674 WARN L193 SmtUtils]: Spent 458.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 171 [2020-10-23 20:12:40,680 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:40,688 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:12:43,251 WARN L193 SmtUtils]: Spent 458.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 173 [2020-10-23 20:12:43,255 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:45,757 WARN L193 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 171 [2020-10-23 20:12:48,249 WARN L193 SmtUtils]: Spent 433.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 171 [2020-10-23 20:12:48,254 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:50,798 WARN L193 SmtUtils]: Spent 448.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 171 [2020-10-23 20:12:50,804 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:53,295 WARN L193 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 171 [2020-10-23 20:12:55,853 WARN L193 SmtUtils]: Spent 460.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 173 [2020-10-23 20:12:58,432 WARN L193 SmtUtils]: Spent 471.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 173 [2020-10-23 20:12:58,436 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:59,798 WARN L193 SmtUtils]: Spent 503.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 173 [2020-10-23 20:12:59,802 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:59,806 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:13:00,172 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:13:00,519 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:13:00,885 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 114 [2020-10-23 20:13:01,254 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:13:01,627 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 113 [2020-10-23 20:13:01,990 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 113 [2020-10-23 20:13:02,368 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 114 [2020-10-23 20:13:02,721 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:13:02,723 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:13:03,099 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 113 [2020-10-23 20:13:03,468 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 114 [2020-10-23 20:13:03,834 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:13:04,192 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:13:04,553 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 114 [2020-10-23 20:13:04,914 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:13:05,279 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 113 [2020-10-23 20:13:05,668 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:13:05,671 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:13:06,022 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:13:06,417 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:13:06,800 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:13:07,170 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:13:07,530 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:13:07,893 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:13:08,288 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:13:08,664 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:13:08,667 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:13:11,243 WARN L193 SmtUtils]: Spent 476.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:13:13,776 WARN L193 SmtUtils]: Spent 468.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:13:13,780 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:16,315 WARN L193 SmtUtils]: Spent 480.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:13:16,325 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:18,912 WARN L193 SmtUtils]: Spent 525.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:13:18,917 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:20,589 WARN L193 SmtUtils]: Spent 557.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:13:20,593 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:23,195 WARN L193 SmtUtils]: Spent 526.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:13:25,791 WARN L193 SmtUtils]: Spent 513.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:13:28,381 WARN L193 SmtUtils]: Spent 527.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:13:28,385 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:28,389 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:13:30,174 WARN L193 SmtUtils]: Spent 542.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:13:30,177 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:32,756 WARN L193 SmtUtils]: Spent 518.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:13:35,344 WARN L193 SmtUtils]: Spent 527.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:13:35,348 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:37,869 WARN L193 SmtUtils]: Spent 452.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:13:37,873 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:40,436 WARN L193 SmtUtils]: Spent 485.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:13:40,440 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:42,990 WARN L193 SmtUtils]: Spent 490.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 164 [2020-10-23 20:13:42,994 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:45,547 WARN L193 SmtUtils]: Spent 492.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:13:45,552 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:47,628 WARN L193 SmtUtils]: Spent 544.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 166 [2020-10-23 20:13:47,631 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:47,636 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:13:49,389 WARN L193 SmtUtils]: Spent 571.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:13:51,960 WARN L193 SmtUtils]: Spent 513.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:13:51,964 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:54,668 WARN L193 SmtUtils]: Spent 603.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:13:54,671 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:57,274 WARN L193 SmtUtils]: Spent 518.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:13:57,279 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:59,914 WARN L193 SmtUtils]: Spent 560.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:13:59,919 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:02,558 WARN L193 SmtUtils]: Spent 577.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:14:02,563 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:05,232 WARN L193 SmtUtils]: Spent 601.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:14:07,956 WARN L193 SmtUtils]: Spent 650.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:14:07,961 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:07,964 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:14:10,588 WARN L193 SmtUtils]: Spent 566.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:14:10,593 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:13,170 WARN L193 SmtUtils]: Spent 518.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 162 [2020-10-23 20:14:13,175 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:15,807 WARN L193 SmtUtils]: Spent 566.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:14:15,812 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:18,377 WARN L193 SmtUtils]: Spent 506.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 163 [2020-10-23 20:14:18,381 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:20,953 WARN L193 SmtUtils]: Spent 496.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 163 [2020-10-23 20:14:23,479 WARN L193 SmtUtils]: Spent 457.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 163 [2020-10-23 20:14:26,086 WARN L193 SmtUtils]: Spent 506.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:14:26,090 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:28,662 WARN L193 SmtUtils]: Spent 496.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 164 [2020-10-23 20:14:28,665 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:28,668 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:14:29,018 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:14:29,376 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:14:29,739 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:14:30,093 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:14:30,451 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:14:30,857 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:14:31,262 WARN L193 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:14:31,669 WARN L193 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:14:31,672 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:14:34,292 WARN L193 SmtUtils]: Spent 563.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:14:34,296 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:36,926 WARN L193 SmtUtils]: Spent 562.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:14:36,930 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:39,809 WARN L193 SmtUtils]: Spent 817.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:14:39,813 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:42,458 WARN L193 SmtUtils]: Spent 587.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:14:42,462 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:45,118 WARN L193 SmtUtils]: Spent 588.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:14:45,122 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:47,778 WARN L193 SmtUtils]: Spent 596.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:14:47,781 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:50,456 WARN L193 SmtUtils]: Spent 605.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:14:50,460 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:53,130 WARN L193 SmtUtils]: Spent 606.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:14:53,135 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:14:53,539 WARN L193 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:14:53,925 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:14:54,329 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:14:54,737 WARN L193 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:14:55,169 WARN L193 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:14:55,582 WARN L193 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:14:55,997 WARN L193 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:14:56,410 WARN L193 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:14:56,413 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:14:59,109 WARN L193 SmtUtils]: Spent 633.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:15:01,586 WARN L193 SmtUtils]: Spent 688.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:15:03,976 WARN L193 SmtUtils]: Spent 658.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:15:03,979 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:06,649 WARN L193 SmtUtils]: Spent 608.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:15:06,652 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:09,276 WARN L193 SmtUtils]: Spent 562.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:15:11,957 WARN L193 SmtUtils]: Spent 611.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:15:11,963 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:14,586 WARN L193 SmtUtils]: Spent 570.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:15:14,589 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:17,267 WARN L193 SmtUtils]: Spent 607.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:15:17,271 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:17,274 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:15:19,869 WARN L193 SmtUtils]: Spent 518.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:15:19,872 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:22,453 WARN L193 SmtUtils]: Spent 515.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:15:22,457 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:24,484 WARN L193 SmtUtils]: Spent 569.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:15:24,487 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:27,128 WARN L193 SmtUtils]: Spent 587.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:15:27,132 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:29,848 WARN L193 SmtUtils]: Spent 620.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:15:32,639 WARN L193 SmtUtils]: Spent 708.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:15:32,642 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:35,387 WARN L193 SmtUtils]: Spent 680.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:15:38,084 WARN L193 SmtUtils]: Spent 626.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:15:38,088 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:38,092 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:15:40,780 WARN L193 SmtUtils]: Spent 622.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 167 [2020-10-23 20:15:40,782 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:43,408 WARN L193 SmtUtils]: Spent 570.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 165 [2020-10-23 20:15:43,411 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:46,068 WARN L193 SmtUtils]: Spent 600.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 165 [2020-10-23 20:15:46,072 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:48,735 WARN L193 SmtUtils]: Spent 612.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 165 [2020-10-23 20:15:48,739 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:51,486 WARN L193 SmtUtils]: Spent 679.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 167 [2020-10-23 20:15:51,489 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:54,273 WARN L193 SmtUtils]: Spent 698.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 167 [2020-10-23 20:15:54,276 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:57,027 WARN L193 SmtUtils]: Spent 672.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 167 [2020-10-23 20:15:57,031 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:59,709 WARN L193 SmtUtils]: Spent 618.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 165 [2020-10-23 20:15:59,714 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:16:02,484 WARN L193 SmtUtils]: Spent 701.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:16:02,487 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:16:05,248 WARN L193 SmtUtils]: Spent 674.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:16:05,252 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:16:07,928 WARN L193 SmtUtils]: Spent 614.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:16:07,932 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:16:10,707 WARN L193 SmtUtils]: Spent 683.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:16:10,711 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:16:13,455 WARN L193 SmtUtils]: Spent 668.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:16:13,459 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:16:16,306 WARN L193 SmtUtils]: Spent 768.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:16:16,310 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:16:19,076 WARN L193 SmtUtils]: Spent 706.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:16:19,080 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:16:21,849 WARN L193 SmtUtils]: Spent 703.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:16:21,853 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:16:21,857 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:16:22,295 WARN L193 SmtUtils]: Spent 423.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:16:22,717 WARN L193 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:16:23,118 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:16:23,532 WARN L193 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:16:23,970 WARN L193 SmtUtils]: Spent 423.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:16:24,414 WARN L193 SmtUtils]: Spent 428.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:16:24,863 WARN L193 SmtUtils]: Spent 432.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:16:25,293 WARN L193 SmtUtils]: Spent 415.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:16:25,296 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:16:26,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:16:26,406 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:16:26,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:16:26,738 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:16:26,949 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 20:16:26,949 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 20:16:26,951 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-23 20:16:26,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 08:16:26 BoogieIcfgContainer [2020-10-23 20:16:26,988 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 20:16:26,990 INFO L168 Benchmark]: Toolchain (without parser) took 306520.90 ms. Allocated memory was 151.0 MB in the beginning and 653.3 MB in the end (delta: 502.3 MB). Free memory was 127.2 MB in the beginning and 358.8 MB in the end (delta: -231.5 MB). Peak memory consumption was 271.6 MB. Max. memory is 8.0 GB. [2020-10-23 20:16:26,990 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 151.0 MB. Free memory is still 126.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 20:16:26,991 INFO L168 Benchmark]: CACSL2BoogieTranslator took 658.11 ms. Allocated memory is still 151.0 MB. Free memory was 126.7 MB in the beginning and 104.9 MB in the end (delta: 21.8 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-10-23 20:16:26,991 INFO L168 Benchmark]: Boogie Preprocessor took 181.28 ms. Allocated memory is still 151.0 MB. Free memory was 104.9 MB in the beginning and 133.1 MB in the end (delta: -28.3 MB). Peak memory consumption was 6.5 MB. Max. memory is 8.0 GB. [2020-10-23 20:16:26,992 INFO L168 Benchmark]: RCFGBuilder took 1928.49 ms. Allocated memory is still 151.0 MB. Free memory was 133.1 MB in the beginning and 89.2 MB in the end (delta: 44.0 MB). Peak memory consumption was 64.4 MB. Max. memory is 8.0 GB. [2020-10-23 20:16:26,993 INFO L168 Benchmark]: TraceAbstraction took 303733.74 ms. Allocated memory was 151.0 MB in the beginning and 653.3 MB in the end (delta: 502.3 MB). Free memory was 88.6 MB in the beginning and 358.8 MB in the end (delta: -270.2 MB). Peak memory consumption was 232.1 MB. Max. memory is 8.0 GB. [2020-10-23 20:16:26,995 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 151.0 MB. Free memory is still 126.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 658.11 ms. Allocated memory is still 151.0 MB. Free memory was 126.7 MB in the beginning and 104.9 MB in the end (delta: 21.8 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 181.28 ms. Allocated memory is still 151.0 MB. Free memory was 104.9 MB in the beginning and 133.1 MB in the end (delta: -28.3 MB). Peak memory consumption was 6.5 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1928.49 ms. Allocated memory is still 151.0 MB. Free memory was 133.1 MB in the beginning and 89.2 MB in the end (delta: 44.0 MB). Peak memory consumption was 64.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 303733.74 ms. Allocated memory was 151.0 MB in the beginning and 653.3 MB in the end (delta: 502.3 MB). Free memory was 88.6 MB in the beginning and 358.8 MB in the end (delta: -270.2 MB). Peak memory consumption was 232.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L240] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L557] int pumpRunning = 0; [L558] int systemActive = 1; [L759] int cleanupTimeShifts = 4; [L855] int waterLevel = 1; [L856] int methaneLevelCritical = 0; [L832] int retValue_acc ; [L833] int tmp ; [L837] FCALL select_helpers() [L838] FCALL select_features() [L839] CALL, EXPR valid_product() [L466] int retValue_acc ; [L469] retValue_acc = 1 [L470] return (retValue_acc); [L839] RET, EXPR valid_product() [L839] tmp = valid_product() [L841] COND TRUE \read(tmp) [L843] FCALL setup() [L844] CALL runTest() [L826] CALL test() [L482] int splverifierCounter ; [L483] int tmp ; [L484] int tmp___0 ; [L485] int tmp___1 ; [L486] int tmp___2 ; [L489] splverifierCounter = 0 [L491] COND TRUE 1 [L493] COND TRUE splverifierCounter < 4 [L499] tmp = __VERIFIER_nondet_int() [L501] COND TRUE \read(tmp) [L503] CALL waterRise() [L873] COND TRUE waterLevel < 2 [L874] waterLevel = waterLevel + 1 [L503] RET waterRise() [L509] tmp___0 = __VERIFIER_nondet_int() [L511] COND FALSE !(\read(tmp___0)) [L519] tmp___2 = __VERIFIER_nondet_int() [L521] COND FALSE !(\read(tmp___2)) [L527] tmp___1 = __VERIFIER_nondet_int() [L529] COND TRUE \read(tmp___1) [L531] CALL stopSystem() [L730] COND FALSE !(\read(pumpRunning)) [L737] systemActive = 0 [L531] RET stopSystem() [L538] CALL timeShift() [L564] COND FALSE !(\read(pumpRunning)) [L571] COND FALSE !(\read(systemActive)) [L579] CALL __utac_acc__Specification4_spec__1() [L46] int tmp ; [L47] int tmp___0 ; [L51] CALL, EXPR getWaterLevel() [L926] int retValue_acc ; [L929] retValue_acc = waterLevel [L930] return (retValue_acc); [L51] RET, EXPR getWaterLevel() [L51] tmp = getWaterLevel() [L53] COND FALSE !(tmp == 0) [L579] RET __utac_acc__Specification4_spec__1() [L538] RET timeShift() [L491] COND TRUE 1 [L493] COND TRUE splverifierCounter < 4 [L499] tmp = __VERIFIER_nondet_int() [L501] COND TRUE \read(tmp) [L503] CALL waterRise() [L873] COND TRUE waterLevel < 2 [L874] waterLevel = waterLevel + 1 [L503] RET waterRise() [L509] tmp___0 = __VERIFIER_nondet_int() [L511] COND FALSE !(\read(tmp___0)) [L519] tmp___2 = __VERIFIER_nondet_int() [L521] COND FALSE !(\read(tmp___2)) [L527] tmp___1 = __VERIFIER_nondet_int() [L529] COND FALSE !(\read(tmp___1)) [L538] CALL timeShift() [L564] COND FALSE !(\read(pumpRunning)) [L571] COND FALSE !(\read(systemActive)) [L579] CALL __utac_acc__Specification4_spec__1() [L46] int tmp ; [L47] int tmp___0 ; [L51] CALL, EXPR getWaterLevel() [L926] int retValue_acc ; [L929] retValue_acc = waterLevel [L930] return (retValue_acc); [L51] RET, EXPR getWaterLevel() [L51] tmp = getWaterLevel() [L53] COND TRUE tmp == 0 [L55] CALL, EXPR isPumpRunning() [L663] int retValue_acc ; [L666] retValue_acc = pumpRunning [L667] return (retValue_acc); [L55] RET, EXPR isPumpRunning() [L55] tmp___0 = isPumpRunning() [L57] COND TRUE \read(tmp___0) [L59] CALL __automaton_fail() [L754] CALL reach_error() [L3] __assert_fail("0", "minepump_spec4_product44.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 638 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 303.6s, OverallIterations: 6, TraceHistogramMax: 2, AutomataDifference: 29.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1272 SDtfs, 2439 SDslu, 2397 SDs, 0 SdLazy, 4830 SolverSat, 841 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 12.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 160 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 280 ImplicationChecksByTransitivity, 13.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1424occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.9s AutomataMinimizationTime, 5 MinimizatonAttempts, 433 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...