/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_product10.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 20:00:04,322 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 20:00:04,325 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 20:00:04,362 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 20:00:04,362 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 20:00:04,364 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 20:00:04,366 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 20:00:04,368 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 20:00:04,370 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 20:00:04,372 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 20:00:04,373 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 20:00:04,374 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 20:00:04,375 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 20:00:04,376 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 20:00:04,378 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 20:00:04,379 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 20:00:04,380 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 20:00:04,381 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 20:00:04,383 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 20:00:04,408 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 20:00:04,412 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 20:00:04,414 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 20:00:04,416 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 20:00:04,417 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 20:00:04,420 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 20:00:04,421 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 20:00:04,421 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 20:00:04,422 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 20:00:04,423 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 20:00:04,424 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 20:00:04,425 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 20:00:04,426 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 20:00:04,427 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 20:00:04,428 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 20:00:04,429 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 20:00:04,430 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 20:00:04,430 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 20:00:04,431 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 20:00:04,431 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 20:00:04,432 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 20:00:04,433 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 20:00:04,435 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 20:00:04,447 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 20:00:04,448 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 20:00:04,449 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 20:00:04,449 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 20:00:04,450 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 20:00:04,450 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 20:00:04,450 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 20:00:04,451 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 20:00:04,451 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 20:00:04,451 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 20:00:04,451 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 20:00:04,452 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 20:00:04,452 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 20:00:04,452 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 20:00:04,453 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 20:00:04,453 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 20:00:04,453 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 20:00:04,453 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 20:00:04,454 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 20:00:04,454 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 20:00:04,454 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 20:00:04,455 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 20:00:04,455 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 20:00:04,899 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 20:00:04,954 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 20:00:04,958 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 20:00:04,959 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 20:00:04,960 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 20:00:04,961 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product10.cil.c [2020-10-23 20:00:05,055 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/954182651/e3cb17982e3d445ea9e39396b8cf82b8/FLAGc4a1ec94f [2020-10-23 20:00:05,760 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 20:00:05,761 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product10.cil.c [2020-10-23 20:00:05,776 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/954182651/e3cb17982e3d445ea9e39396b8cf82b8/FLAGc4a1ec94f [2020-10-23 20:00:06,078 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/954182651/e3cb17982e3d445ea9e39396b8cf82b8 [2020-10-23 20:00:06,081 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 20:00:06,090 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 20:00:06,096 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 20:00:06,097 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 20:00:06,101 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 20:00:06,102 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:00:06" (1/1) ... [2020-10-23 20:00:06,106 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@676d289b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:00:06, skipping insertion in model container [2020-10-23 20:00:06,107 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:00:06" (1/1) ... [2020-10-23 20:00:06,116 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 20:00:06,195 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 20:00:06,521 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:00:06,538 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 20:00:06,681 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:00:06,718 INFO L208 MainTranslator]: Completed translation [2020-10-23 20:00:06,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:00:06 WrapperNode [2020-10-23 20:00:06,719 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 20:00:06,720 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 20:00:06,720 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 20:00:06,720 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 20:00:06,734 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:00:06" (1/1) ... [2020-10-23 20:00:06,735 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:00:06" (1/1) ... [2020-10-23 20:00:06,754 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:00:06" (1/1) ... [2020-10-23 20:00:06,754 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:00:06" (1/1) ... [2020-10-23 20:00:06,783 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:00:06" (1/1) ... [2020-10-23 20:00:06,806 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:00:06" (1/1) ... [2020-10-23 20:00:06,814 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:00:06" (1/1) ... [2020-10-23 20:00:06,866 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 20:00:06,868 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 20:00:06,868 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 20:00:06,868 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 20:00:06,874 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:00:06" (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 20:00:06,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 20:00:06,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 20:00:06,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 20:00:06,968 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 20:00:06,968 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-10-23 20:00:06,968 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 20:00:06,969 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 20:00:06,969 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 20:00:06,969 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 20:00:06,969 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 20:00:06,970 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 20:00:06,970 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 20:00:06,970 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 20:00:06,970 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 20:00:06,970 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 20:00:06,970 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 20:00:06,971 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 20:00:06,971 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 20:00:06,971 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 20:00:06,972 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-10-23 20:00:06,973 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 20:00:06,973 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 20:00:06,976 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 20:00:06,976 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 20:00:06,976 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 20:00:06,977 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-10-23 20:00:06,977 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 20:00:06,977 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 20:00:06,977 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 20:00:06,977 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 20:00:06,977 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 20:00:06,978 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 20:00:06,978 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 20:00:06,978 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 20:00:06,978 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 20:00:06,978 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 20:00:06,979 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 20:00:06,979 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 20:00:06,979 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 20:00:06,979 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 20:00:06,979 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 20:00:06,979 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 20:00:06,979 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 20:00:06,980 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 20:00:06,980 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 20:00:06,980 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 20:00:06,980 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-10-23 20:00:06,980 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 20:00:06,980 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 20:00:06,980 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 20:00:06,980 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 20:00:06,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 20:00:06,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 20:00:06,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 20:00:06,981 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 20:00:06,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 20:00:06,981 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 20:00:06,981 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 20:00:06,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 20:00:06,982 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 20:00:06,982 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 20:00:06,982 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 20:00:06,982 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 20:00:06,982 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 20:00:06,982 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 20:00:06,982 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 20:00:06,983 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 20:00:06,983 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 20:00:06,983 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 20:00:06,983 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 20:00:06,983 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 20:00:06,983 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 20:00:06,984 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 20:00:06,984 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 20:00:06,984 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 20:00:06,985 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 20:00:06,985 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 20:00:06,985 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 20:00:06,985 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 20:00:06,985 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 20:00:06,986 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-10-23 20:00:06,986 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 20:00:06,987 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-10-23 20:00:06,987 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 20:00:06,987 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 20:00:06,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 20:00:06,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 20:00:06,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 20:00:08,351 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 20:00:08,351 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 20:00:08,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:00:08 BoogieIcfgContainer [2020-10-23 20:00:08,357 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 20:00:08,359 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 20:00:08,359 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 20:00:08,363 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 20:00:08,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 08:00:06" (1/3) ... [2020-10-23 20:00:08,364 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cb589ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:00:08, skipping insertion in model container [2020-10-23 20:00:08,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:00:06" (2/3) ... [2020-10-23 20:00:08,365 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cb589ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:00:08, skipping insertion in model container [2020-10-23 20:00:08,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:00:08" (3/3) ... [2020-10-23 20:00:08,367 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product10.cil.c [2020-10-23 20:00:08,380 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 20:00:08,386 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 20:00:08,399 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 20:00:08,423 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 20:00:08,423 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 20:00:08,424 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 20:00:08,424 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 20:00:08,424 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 20:00:08,424 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 20:00:08,424 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 20:00:08,424 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 20:00:08,446 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states. [2020-10-23 20:00:08,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-23 20:00:08,466 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:00:08,467 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 20:00:08,468 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 20:00:08,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:00:08,475 INFO L82 PathProgramCache]: Analyzing trace with hash -1267782432, now seen corresponding path program 1 times [2020-10-23 20:00:08,487 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:00:08,488 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [865159522] [2020-10-23 20:00:08,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:00:08,573 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:00:08,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:09,461 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:00:09,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:00:09,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:09,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:00:09,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:09,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:00:09,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:09,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:00:09,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:09,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:00:09,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:09,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 20:00:09,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:09,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 20:00:09,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:09,708 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 20:00:09,711 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [865159522] [2020-10-23 20:00:09,713 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:00:09,713 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 20:00:09,714 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018077281] [2020-10-23 20:00:09,720 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 20:00:09,720 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:00:09,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 20:00:09,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 20:00:09,737 INFO L87 Difference]: Start difference. First operand 254 states. Second operand 3 states. [2020-10-23 20:00:11,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:00:11,096 INFO L93 Difference]: Finished difference Result 362 states and 435 transitions. [2020-10-23 20:00:11,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 20:00:11,098 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 148 [2020-10-23 20:00:11,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:00:11,115 INFO L225 Difference]: With dead ends: 362 [2020-10-23 20:00:11,116 INFO L226 Difference]: Without dead ends: 238 [2020-10-23 20:00:11,121 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 20:00:11,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2020-10-23 20:00:11,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 200. [2020-10-23 20:00:11,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 200 states. [2020-10-23 20:00:11,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 213 transitions. [2020-10-23 20:00:11,253 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 213 transitions. Word has length 148 [2020-10-23 20:00:11,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:00:11,254 INFO L481 AbstractCegarLoop]: Abstraction has 200 states and 213 transitions. [2020-10-23 20:00:11,255 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 20:00:11,255 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 213 transitions. [2020-10-23 20:00:11,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-23 20:00:11,260 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:00:11,260 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 20:00:11,260 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 20:00:11,261 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 20:00:11,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:00:11,262 INFO L82 PathProgramCache]: Analyzing trace with hash -393278624, now seen corresponding path program 1 times [2020-10-23 20:00:11,262 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:00:11,262 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [237952310] [2020-10-23 20:00:11,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:00:11,267 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:00:11,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:11,817 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:00:11,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:00:11,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:11,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:00:11,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:11,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:00:11,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:11,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:00:11,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:11,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:00:11,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:11,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 20:00:11,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:11,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 20:00:11,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:12,001 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 20:00:12,002 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [237952310] [2020-10-23 20:00:12,002 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:00:12,003 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 20:00:12,003 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381630010] [2020-10-23 20:00:12,004 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 20:00:12,005 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:00:12,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 20:00:12,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 20:00:12,006 INFO L87 Difference]: Start difference. First operand 200 states and 213 transitions. Second operand 4 states. [2020-10-23 20:00:12,992 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:00:13,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:00:13,657 INFO L93 Difference]: Finished difference Result 272 states and 302 transitions. [2020-10-23 20:00:13,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 20:00:13,658 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 149 [2020-10-23 20:00:13,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:00:13,662 INFO L225 Difference]: With dead ends: 272 [2020-10-23 20:00:13,662 INFO L226 Difference]: Without dead ends: 221 [2020-10-23 20:00:13,664 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-23 20:00:13,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2020-10-23 20:00:13,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 190. [2020-10-23 20:00:13,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2020-10-23 20:00:13,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 200 transitions. [2020-10-23 20:00:13,743 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 200 transitions. Word has length 149 [2020-10-23 20:00:13,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:00:13,744 INFO L481 AbstractCegarLoop]: Abstraction has 190 states and 200 transitions. [2020-10-23 20:00:13,744 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 20:00:13,744 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 200 transitions. [2020-10-23 20:00:13,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-10-23 20:00:13,747 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:00:13,747 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 20:00:13,747 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 20:00:13,748 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 20:00:13,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:00:13,748 INFO L82 PathProgramCache]: Analyzing trace with hash -2032033393, now seen corresponding path program 1 times [2020-10-23 20:00:13,749 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:00:13,749 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [933041799] [2020-10-23 20:00:13,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:00:13,752 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:00:13,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:14,193 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:00:14,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:00:14,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:14,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:00:14,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:14,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:00:14,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:14,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:00:14,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:14,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:00:14,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:14,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-23 20:00:14,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:14,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-23 20:00:14,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:14,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-23 20:00:14,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:14,412 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 20:00:14,414 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [933041799] [2020-10-23 20:00:14,415 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:00:14,415 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 20:00:14,415 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706385306] [2020-10-23 20:00:14,416 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 20:00:14,418 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:00:14,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 20:00:14,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 20:00:14,419 INFO L87 Difference]: Start difference. First operand 190 states and 200 transitions. Second operand 10 states. [2020-10-23 20:00:15,099 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:00:15,642 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:00:16,052 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 20:00:16,481 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:00:16,886 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:00:17,294 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:00:18,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:00:18,518 INFO L93 Difference]: Finished difference Result 318 states and 364 transitions. [2020-10-23 20:00:18,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-23 20:00:18,518 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 162 [2020-10-23 20:00:18,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:00:18,527 INFO L225 Difference]: With dead ends: 318 [2020-10-23 20:00:18,527 INFO L226 Difference]: Without dead ends: 243 [2020-10-23 20:00:18,529 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2020-10-23 20:00:18,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2020-10-23 20:00:18,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 190. [2020-10-23 20:00:18,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2020-10-23 20:00:18,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 199 transitions. [2020-10-23 20:00:18,611 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 199 transitions. Word has length 162 [2020-10-23 20:00:18,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:00:18,611 INFO L481 AbstractCegarLoop]: Abstraction has 190 states and 199 transitions. [2020-10-23 20:00:18,611 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 20:00:18,612 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 199 transitions. [2020-10-23 20:00:18,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-10-23 20:00:18,614 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:00:18,614 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] [2020-10-23 20:00:18,615 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 20:00:18,615 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 20:00:18,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:00:18,616 INFO L82 PathProgramCache]: Analyzing trace with hash -1883746836, now seen corresponding path program 1 times [2020-10-23 20:00:18,616 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:00:18,616 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [492683007] [2020-10-23 20:00:18,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:00:18,620 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:00:18,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:19,120 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:00:19,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:00:19,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:19,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:00:19,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:19,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:00:19,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:19,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:00:19,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:19,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:00:19,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:19,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-23 20:00:19,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:19,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 20:00:19,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:19,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-23 20:00:19,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:19,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-23 20:00:19,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:19,417 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 20:00:19,418 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [492683007] [2020-10-23 20:00:19,418 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:00:19,418 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-23 20:00:19,419 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389340361] [2020-10-23 20:00:19,419 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-23 20:00:19,420 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:00:19,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-23 20:00:19,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2020-10-23 20:00:19,422 INFO L87 Difference]: Start difference. First operand 190 states and 199 transitions. Second operand 14 states. [2020-10-23 20:00:20,158 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:00:20,701 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:00:21,101 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:00:21,538 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:00:21,959 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:00:22,360 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:00:23,290 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:00:24,278 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:00:24,709 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:00:25,149 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:00:25,559 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:00:25,960 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:00:26,344 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:00:26,740 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:00:27,156 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:00:27,562 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:00:28,039 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:00:28,488 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:00:28,930 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:00:29,321 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:00:30,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:00:30,539 INFO L93 Difference]: Finished difference Result 481 states and 575 transitions. [2020-10-23 20:00:30,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-23 20:00:30,540 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 165 [2020-10-23 20:00:30,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:00:30,546 INFO L225 Difference]: With dead ends: 481 [2020-10-23 20:00:30,546 INFO L226 Difference]: Without dead ends: 406 [2020-10-23 20:00:30,548 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 227 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=252, Invalid=1008, Unknown=0, NotChecked=0, Total=1260 [2020-10-23 20:00:30,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2020-10-23 20:00:30,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 312. [2020-10-23 20:00:30,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 312 states. [2020-10-23 20:00:30,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 340 transitions. [2020-10-23 20:00:30,704 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 340 transitions. Word has length 165 [2020-10-23 20:00:30,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:00:30,704 INFO L481 AbstractCegarLoop]: Abstraction has 312 states and 340 transitions. [2020-10-23 20:00:30,705 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-23 20:00:30,705 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 340 transitions. [2020-10-23 20:00:30,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-10-23 20:00:30,708 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:00:30,708 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] [2020-10-23 20:00:30,708 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 20:00:30,709 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 20:00:30,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:00:30,710 INFO L82 PathProgramCache]: Analyzing trace with hash 1550874210, now seen corresponding path program 1 times [2020-10-23 20:00:30,710 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:00:30,710 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1090877969] [2020-10-23 20:00:30,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:00:30,714 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:00:30,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:31,104 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:00:31,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:00:31,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:31,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:00:31,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:31,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:00:31,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:31,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:00:31,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:31,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:00:31,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:31,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-23 20:00:31,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:31,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 20:00:31,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:31,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-23 20:00:31,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:31,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-23 20:00:31,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:31,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-10-23 20:00:31,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:31,276 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 20:00:31,276 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1090877969] [2020-10-23 20:00:31,276 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:00:31,277 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 20:00:31,277 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464469878] [2020-10-23 20:00:31,277 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-23 20:00:31,278 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:00:31,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-23 20:00:31,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-23 20:00:31,279 INFO L87 Difference]: Start difference. First operand 312 states and 340 transitions. Second operand 6 states. [2020-10-23 20:00:32,000 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:00:33,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:00:33,010 INFO L93 Difference]: Finished difference Result 522 states and 606 transitions. [2020-10-23 20:00:33,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-23 20:00:33,014 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 170 [2020-10-23 20:00:33,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:00:33,017 INFO L225 Difference]: With dead ends: 522 [2020-10-23 20:00:33,017 INFO L226 Difference]: Without dead ends: 381 [2020-10-23 20:00:33,018 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-10-23 20:00:33,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2020-10-23 20:00:33,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 294. [2020-10-23 20:00:33,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2020-10-23 20:00:33,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 311 transitions. [2020-10-23 20:00:33,128 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 311 transitions. Word has length 170 [2020-10-23 20:00:33,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:00:33,129 INFO L481 AbstractCegarLoop]: Abstraction has 294 states and 311 transitions. [2020-10-23 20:00:33,129 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-23 20:00:33,129 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 311 transitions. [2020-10-23 20:00:33,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2020-10-23 20:00:33,133 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:00:33,133 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:00:33,134 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 20:00:33,134 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 20:00:33,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:00:33,134 INFO L82 PathProgramCache]: Analyzing trace with hash -155976453, now seen corresponding path program 1 times [2020-10-23 20:00:33,135 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:00:33,135 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1831676717] [2020-10-23 20:00:33,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:00:33,317 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 54 [2020-10-23 20:00:33,579 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2020-10-23 20:00:33,771 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2020-10-23 20:00:33,986 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2020-10-23 20:00:34,201 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2020-10-23 20:00:34,435 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 54 [2020-10-23 20:00:34,648 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2020-10-23 20:00:34,865 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2020-10-23 20:00:35,095 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 54 [2020-10-23 20:00:35,326 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2020-10-23 20:00:35,540 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2020-10-23 20:00:35,754 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2020-10-23 20:00:35,960 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2020-10-23 20:00:36,172 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2020-10-23 20:00:38,961 WARN L193 SmtUtils]: Spent 463.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 152 [2020-10-23 20:00:38,981 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:41,584 WARN L193 SmtUtils]: Spent 474.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 152 [2020-10-23 20:00:41,597 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:42,654 WARN L193 SmtUtils]: Spent 489.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 154 [2020-10-23 20:00:42,667 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:43,844 WARN L193 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 154 [2020-10-23 20:00:43,851 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:46,304 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 152 [2020-10-23 20:00:46,314 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:48,781 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 152 [2020-10-23 20:00:48,786 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:49,739 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 154 [2020-10-23 20:00:49,744 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:50,924 WARN L193 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 154 [2020-10-23 20:00:50,931 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:50,943 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:00:53,336 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 147 [2020-10-23 20:00:54,278 WARN L193 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 148 [2020-10-23 20:00:56,777 WARN L193 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 149 [2020-10-23 20:00:59,216 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 146 [2020-10-23 20:00:59,221 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:01,659 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 147 [2020-10-23 20:01:04,143 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 149 [2020-10-23 20:01:06,639 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 149 [2020-10-23 20:01:06,646 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:09,085 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 147 [2020-10-23 20:01:09,094 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:01:11,606 WARN L193 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-23 20:01:11,610 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:14,149 WARN L193 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-23 20:01:16,633 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-23 20:01:16,638 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:19,130 WARN L193 SmtUtils]: Spent 441.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 151 [2020-10-23 20:01:19,134 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:21,607 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 151 [2020-10-23 20:01:21,612 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:24,039 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 151 [2020-10-23 20:01:24,044 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:26,539 WARN L193 SmtUtils]: Spent 430.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-23 20:01:26,542 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:29,006 WARN L193 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 151 [2020-10-23 20:01:29,011 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:29,015 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:01:31,508 WARN L193 SmtUtils]: Spent 423.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 149 [2020-10-23 20:01:32,762 WARN L193 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 149 [2020-10-23 20:01:35,220 WARN L193 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 146 [2020-10-23 20:01:35,224 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:37,742 WARN L193 SmtUtils]: Spent 462.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 148 [2020-10-23 20:01:40,400 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 147 [2020-10-23 20:01:40,404 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:42,852 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 147 [2020-10-23 20:01:42,855 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:45,375 WARN L193 SmtUtils]: Spent 454.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 149 [2020-10-23 20:01:45,380 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:47,899 WARN L193 SmtUtils]: Spent 440.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 147 [2020-10-23 20:01:47,905 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:01:48,242 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 105 [2020-10-23 20:01:48,571 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:01:48,911 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 105 [2020-10-23 20:01:49,241 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 105 [2020-10-23 20:01:49,577 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:01:49,908 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:01:50,268 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 105 [2020-10-23 20:01:50,600 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:01:50,603 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:01:53,157 WARN L193 SmtUtils]: Spent 494.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 156 [2020-10-23 20:01:53,161 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:55,700 WARN L193 SmtUtils]: Spent 455.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 154 [2020-10-23 20:01:55,704 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:58,294 WARN L193 SmtUtils]: Spent 505.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 154 [2020-10-23 20:01:58,300 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:02:00,840 WARN L193 SmtUtils]: Spent 464.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 154 [2020-10-23 20:02:00,843 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:02:03,011 WARN L193 SmtUtils]: Spent 553.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 156 [2020-10-23 20:02:03,015 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:02:05,596 WARN L193 SmtUtils]: Spent 477.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 154 [2020-10-23 20:02:05,601 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:02:08,283 WARN L193 SmtUtils]: Spent 532.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 156 [2020-10-23 20:02:10,214 WARN L193 SmtUtils]: Spent 522.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 156 [2020-10-23 20:02:10,217 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:02:10,220 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:02:10,557 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:02:10,924 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:02:11,283 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:02:11,624 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:02:11,967 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:02:12,353 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:02:12,705 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:02:13,035 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:02:13,037 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:02:15,591 WARN L193 SmtUtils]: Spent 489.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 155 [2020-10-23 20:02:15,595 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:02:18,122 WARN L193 SmtUtils]: Spent 472.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 155 [2020-10-23 20:02:18,127 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:02:20,594 WARN L193 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 155 [2020-10-23 20:02:20,597 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:02:22,122 WARN L193 SmtUtils]: Spent 453.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 157 [2020-10-23 20:02:22,127 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:02:24,711 WARN L193 SmtUtils]: Spent 454.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 157 [2020-10-23 20:02:27,154 WARN L193 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 155 [2020-10-23 20:02:27,157 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:02:29,695 WARN L193 SmtUtils]: Spent 455.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 157 [2020-10-23 20:02:29,699 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:02:32,240 WARN L193 SmtUtils]: Spent 459.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 157 [2020-10-23 20:02:32,246 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:02:32,249 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:02:33,912 WARN L193 SmtUtils]: Spent 547.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 158 [2020-10-23 20:02:33,918 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:02:36,137 WARN L193 SmtUtils]: Spent 517.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 158 [2020-10-23 20:02:36,140 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:02:38,675 WARN L193 SmtUtils]: Spent 478.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 156 [2020-10-23 20:02:38,679 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:02:41,231 WARN L193 SmtUtils]: Spent 486.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 156 [2020-10-23 20:02:41,234 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:02:43,795 WARN L193 SmtUtils]: Spent 506.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 156 [2020-10-23 20:02:43,798 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:02:46,385 WARN L193 SmtUtils]: Spent 534.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 156 [2020-10-23 20:02:46,389 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:02:48,639 WARN L193 SmtUtils]: Spent 576.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 158 [2020-10-23 20:02:48,644 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:02:51,348 WARN L193 SmtUtils]: Spent 594.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 158 [2020-10-23 20:02:51,352 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:02:51,356 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:02:53,904 WARN L193 SmtUtils]: Spent 492.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-23 20:02:53,908 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:02:56,409 WARN L193 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-23 20:02:56,412 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:02:58,947 WARN L193 SmtUtils]: Spent 459.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-23 20:02:58,950 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:03:01,520 WARN L193 SmtUtils]: Spent 501.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 155 [2020-10-23 20:03:01,524 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:03:04,113 WARN L193 SmtUtils]: Spent 499.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 155 [2020-10-23 20:03:06,337 WARN L193 SmtUtils]: Spent 521.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 155 [2020-10-23 20:03:06,340 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:03:08,877 WARN L193 SmtUtils]: Spent 485.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-23 20:03:08,880 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:03:11,485 WARN L193 SmtUtils]: Spent 527.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 155 [2020-10-23 20:03:11,489 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:03:11,492 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:03:11,800 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 20:03:12,110 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 20:03:12,441 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 101 [2020-10-23 20:03:12,745 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 101 [2020-10-23 20:03:13,064 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 20:03:13,386 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 101 [2020-10-23 20:03:13,693 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 20:03:14,011 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 20:03:14,013 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:03:14,332 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 101 [2020-10-23 20:03:14,622 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 101 [2020-10-23 20:03:14,927 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 20:03:15,213 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 20:03:15,519 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 20:03:15,827 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 20:03:16,144 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 101 [2020-10-23 20:03:16,474 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 20:03:16,477 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:03:16,803 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 101 [2020-10-23 20:03:17,115 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 20:03:17,439 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 101 [2020-10-23 20:03:17,761 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 20:03:18,085 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 20:03:18,402 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 101 [2020-10-23 20:03:18,728 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 20:03:19,055 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 20:03:19,057 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:03:19,372 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 105 [2020-10-23 20:03:19,708 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 105 [2020-10-23 20:03:20,044 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:03:20,358 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:03:20,672 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:03:20,969 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 105 [2020-10-23 20:03:21,268 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:03:21,565 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 105 [2020-10-23 20:03:21,567 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:03:22,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:03:22,055 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:03:22,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:03:22,664 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:03:22,951 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 20:03:22,951 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 20:03:22,955 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-23 20:03:23,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 08:03:23 BoogieIcfgContainer [2020-10-23 20:03:23,003 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 20:03:23,005 INFO L168 Benchmark]: Toolchain (without parser) took 196921.56 ms. Allocated memory was 151.0 MB in the beginning and 431.0 MB in the end (delta: 280.0 MB). Free memory was 127.2 MB in the beginning and 338.6 MB in the end (delta: -211.4 MB). Peak memory consumption was 266.0 MB. Max. memory is 8.0 GB. [2020-10-23 20:03:23,010 INFO L168 Benchmark]: CDTParser took 1.05 ms. Allocated memory is still 151.0 MB. Free memory was 125.5 MB in the beginning and 125.4 MB in the end (delta: 74.9 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 20:03:23,017 INFO L168 Benchmark]: CACSL2BoogieTranslator took 622.79 ms. Allocated memory is still 151.0 MB. Free memory was 126.7 MB in the beginning and 106.9 MB in the end (delta: 19.8 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2020-10-23 20:03:23,018 INFO L168 Benchmark]: Boogie Preprocessor took 146.74 ms. Allocated memory is still 151.0 MB. Free memory was 106.9 MB in the beginning and 133.8 MB in the end (delta: -26.9 MB). Peak memory consumption was 7.7 MB. Max. memory is 8.0 GB. [2020-10-23 20:03:23,018 INFO L168 Benchmark]: RCFGBuilder took 1489.86 ms. Allocated memory is still 151.0 MB. Free memory was 133.8 MB in the beginning and 92.3 MB in the end (delta: 41.5 MB). Peak memory consumption was 63.1 MB. Max. memory is 8.0 GB. [2020-10-23 20:03:23,019 INFO L168 Benchmark]: TraceAbstraction took 194644.22 ms. Allocated memory was 151.0 MB in the beginning and 431.0 MB in the end (delta: 280.0 MB). Free memory was 91.8 MB in the beginning and 338.6 MB in the end (delta: -246.8 MB). Peak memory consumption was 229.8 MB. Max. memory is 8.0 GB. [2020-10-23 20:03:23,023 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.05 ms. Allocated memory is still 151.0 MB. Free memory was 125.5 MB in the beginning and 125.4 MB in the end (delta: 74.9 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 622.79 ms. Allocated memory is still 151.0 MB. Free memory was 126.7 MB in the beginning and 106.9 MB in the end (delta: 19.8 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 146.74 ms. Allocated memory is still 151.0 MB. Free memory was 106.9 MB in the beginning and 133.8 MB in the end (delta: -26.9 MB). Peak memory consumption was 7.7 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1489.86 ms. Allocated memory is still 151.0 MB. Free memory was 133.8 MB in the beginning and 92.3 MB in the end (delta: 41.5 MB). Peak memory consumption was 63.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 194644.22 ms. Allocated memory was 151.0 MB in the beginning and 431.0 MB in the end (delta: 280.0 MB). Free memory was 91.8 MB in the beginning and 338.6 MB in the end (delta: -246.8 MB). Peak memory consumption was 229.8 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; [L446] int cleanupTimeShifts = 4; [L556] int pumpRunning = 0; [L557] int systemActive = 1; [L756] int waterLevel = 1; [L757] int methaneLevelCritical = 0; [L527] int retValue_acc ; [L528] int tmp ; [L532] FCALL select_helpers() [L533] FCALL select_features() [L534] CALL, EXPR valid_product() [L862] int retValue_acc ; [L865] retValue_acc = 1 [L866] return (retValue_acc); [L534] RET, EXPR valid_product() [L534] tmp = valid_product() [L536] COND TRUE \read(tmp) [L538] FCALL setup() [L539] CALL runTest() [L518] CALL test() [L690] int splverifierCounter ; [L691] int tmp ; [L692] int tmp___0 ; [L693] int tmp___1 ; [L694] int tmp___2 ; [L697] splverifierCounter = 0 [L699] COND TRUE 1 [L701] COND TRUE splverifierCounter < 4 [L707] tmp = __VERIFIER_nondet_int() [L709] COND TRUE \read(tmp) [L711] CALL waterRise() [L774] COND TRUE waterLevel < 2 [L775] waterLevel = waterLevel + 1 [L711] RET waterRise() [L717] tmp___0 = __VERIFIER_nondet_int() [L719] COND FALSE !(\read(tmp___0)) [L727] tmp___2 = __VERIFIER_nondet_int() [L729] COND TRUE \read(tmp___2) [L731] CALL startSystem() [L684] systemActive = 1 [L731] RET startSystem() [L744] CALL timeShift() [L563] COND FALSE !(\read(pumpRunning)) [L570] COND TRUE \read(systemActive) [L572] FCALL processEnvironment() [L578] CALL __utac_acc__Specification4_spec__1() [L46] int tmp ; [L47] int tmp___0 ; [L51] CALL, EXPR getWaterLevel() [L827] int retValue_acc ; [L830] retValue_acc = waterLevel [L831] return (retValue_acc); [L51] RET, EXPR getWaterLevel() [L51] tmp = getWaterLevel() [L53] COND FALSE !(tmp == 0) [L578] RET __utac_acc__Specification4_spec__1() [L744] RET timeShift() [L699] COND TRUE 1 [L701] COND TRUE splverifierCounter < 4 [L707] tmp = __VERIFIER_nondet_int() [L709] COND TRUE \read(tmp) [L711] CALL waterRise() [L774] COND TRUE waterLevel < 2 [L775] waterLevel = waterLevel + 1 [L711] RET waterRise() [L717] tmp___0 = __VERIFIER_nondet_int() [L719] COND FALSE !(\read(tmp___0)) [L727] tmp___2 = __VERIFIER_nondet_int() [L729] COND TRUE \read(tmp___2) [L731] CALL startSystem() [L684] systemActive = 1 [L731] RET startSystem() [L744] CALL timeShift() [L563] COND FALSE !(\read(pumpRunning)) [L570] COND TRUE \read(systemActive) [L572] FCALL processEnvironment() [L578] CALL __utac_acc__Specification4_spec__1() [L46] int tmp ; [L47] int tmp___0 ; [L51] CALL, EXPR getWaterLevel() [L827] int retValue_acc ; [L830] retValue_acc = waterLevel [L831] return (retValue_acc); [L51] RET, EXPR getWaterLevel() [L51] tmp = getWaterLevel() [L53] COND TRUE tmp == 0 [L55] CALL, EXPR isPumpRunning() [L636] int retValue_acc ; [L639] retValue_acc = pumpRunning [L640] return (retValue_acc); [L55] RET, EXPR isPumpRunning() [L55] tmp___0 = isPumpRunning() [L57] COND TRUE \read(tmp___0) [L59] CALL __automaton_fail() [L441] CALL reach_error() [L3] __assert_fail("0", "minepump_spec4_product10.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 37 procedures, 598 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 194.5s, OverallIterations: 6, TraceHistogramMax: 2, AutomataDifference: 20.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 913 SDtfs, 1405 SDslu, 1966 SDs, 0 SdLazy, 2674 SolverSat, 417 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 156 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 13.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=312occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 5 MinimizatonAttempts, 303 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...