/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_product31.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 20:07:40,077 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 20:07:40,080 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 20:07:40,119 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 20:07:40,120 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 20:07:40,121 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 20:07:40,123 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 20:07:40,126 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 20:07:40,128 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 20:07:40,129 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 20:07:40,130 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 20:07:40,132 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 20:07:40,132 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 20:07:40,134 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 20:07:40,135 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 20:07:40,139 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 20:07:40,140 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 20:07:40,141 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 20:07:40,143 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 20:07:40,146 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 20:07:40,148 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 20:07:40,149 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 20:07:40,151 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 20:07:40,152 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 20:07:40,155 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 20:07:40,156 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 20:07:40,156 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 20:07:40,157 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 20:07:40,158 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 20:07:40,159 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 20:07:40,160 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 20:07:40,161 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 20:07:40,162 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 20:07:40,163 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 20:07:40,164 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 20:07:40,164 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 20:07:40,165 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 20:07:40,166 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 20:07:40,166 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 20:07:40,167 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 20:07:40,168 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 20:07:40,170 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 20:07:40,183 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 20:07:40,184 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 20:07:40,189 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 20:07:40,204 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 20:07:40,204 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 20:07:40,205 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 20:07:40,205 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 20:07:40,205 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 20:07:40,205 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 20:07:40,206 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 20:07:40,206 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 20:07:40,206 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 20:07:40,206 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 20:07:40,207 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 20:07:40,207 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 20:07:40,208 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 20:07:40,208 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 20:07:40,211 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 20:07:40,211 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 20:07:40,212 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 20:07:40,212 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 20:07:40,212 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 20:07:40,212 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 20:07:40,619 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 20:07:40,671 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 20:07:40,674 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 20:07:40,676 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 20:07:40,676 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 20:07:40,678 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product31.cil.c [2020-10-23 20:07:40,771 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d59ef2db9/ddfac6ab58fa46c193ab11e48601e124/FLAG7036fc64f [2020-10-23 20:07:41,514 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 20:07:41,515 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product31.cil.c [2020-10-23 20:07:41,530 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d59ef2db9/ddfac6ab58fa46c193ab11e48601e124/FLAG7036fc64f [2020-10-23 20:07:41,834 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d59ef2db9/ddfac6ab58fa46c193ab11e48601e124 [2020-10-23 20:07:41,837 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 20:07:41,848 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 20:07:41,854 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 20:07:41,854 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 20:07:41,858 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 20:07:41,859 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:07:41" (1/1) ... [2020-10-23 20:07:41,864 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@399c8c79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:07:41, skipping insertion in model container [2020-10-23 20:07:41,864 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:07:41" (1/1) ... [2020-10-23 20:07:41,873 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 20:07:41,957 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 20:07:42,515 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:07:42,530 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 20:07:42,685 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:07:42,740 INFO L208 MainTranslator]: Completed translation [2020-10-23 20:07:42,740 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:07:42 WrapperNode [2020-10-23 20:07:42,741 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 20:07:42,742 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 20:07:42,742 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 20:07:42,742 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 20:07:42,758 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:07:42" (1/1) ... [2020-10-23 20:07:42,759 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:07:42" (1/1) ... [2020-10-23 20:07:42,806 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:07:42" (1/1) ... [2020-10-23 20:07:42,809 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:07:42" (1/1) ... [2020-10-23 20:07:42,866 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:07:42" (1/1) ... [2020-10-23 20:07:42,883 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:07:42" (1/1) ... [2020-10-23 20:07:42,899 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:07:42" (1/1) ... [2020-10-23 20:07:42,919 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 20:07:42,921 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 20:07:42,921 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 20:07:42,923 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 20:07:42,925 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:07:42" (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 20:07:43,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 20:07:43,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 20:07:43,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 20:07:43,069 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 20:07:43,069 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 20:07:43,070 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 20:07:43,070 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 20:07:43,070 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 20:07:43,070 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 20:07:43,070 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 20:07:43,071 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 20:07:43,071 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 20:07:43,072 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 20:07:43,072 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 20:07:43,072 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 20:07:43,073 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 20:07:43,073 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 20:07:43,074 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 20:07:43,074 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 20:07:43,074 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 20:07:43,076 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 20:07:43,076 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 20:07:43,079 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 20:07:43,080 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 20:07:43,080 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 20:07:43,080 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-10-23 20:07:43,080 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 20:07:43,081 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 20:07:43,081 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-23 20:07:43,081 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-10-23 20:07:43,081 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 20:07:43,081 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-10-23 20:07:43,082 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 20:07:43,082 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 20:07:43,082 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 20:07:43,082 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 20:07:43,082 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 20:07:43,083 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-10-23 20:07:43,083 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-23 20:07:43,083 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-10-23 20:07:43,083 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 20:07:43,084 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 20:07:43,084 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 20:07:43,084 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 20:07:43,084 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 20:07:43,084 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 20:07:43,085 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 20:07:43,085 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 20:07:43,085 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 20:07:43,085 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 20:07:43,085 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 20:07:43,085 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 20:07:43,086 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 20:07:43,086 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 20:07:43,086 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 20:07:43,086 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 20:07:43,086 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 20:07:43,086 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 20:07:43,087 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 20:07:43,087 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 20:07:43,087 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 20:07:43,087 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 20:07:43,087 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 20:07:43,087 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 20:07:43,088 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 20:07:43,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 20:07:43,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 20:07:43,088 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 20:07:43,088 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 20:07:43,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 20:07:43,088 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 20:07:43,089 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 20:07:43,089 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 20:07:43,089 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 20:07:43,089 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 20:07:43,090 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 20:07:43,090 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 20:07:43,090 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 20:07:43,090 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 20:07:43,091 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 20:07:43,092 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-10-23 20:07:43,092 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-23 20:07:43,092 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 20:07:43,092 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 20:07:43,092 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 20:07:43,092 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-10-23 20:07:43,093 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 20:07:43,094 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-23 20:07:43,094 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-10-23 20:07:43,095 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-10-23 20:07:43,095 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 20:07:43,095 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-10-23 20:07:43,095 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 20:07:43,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 20:07:43,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 20:07:43,097 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 20:07:44,798 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 20:07:44,798 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 20:07:44,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:07:44 BoogieIcfgContainer [2020-10-23 20:07:44,802 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 20:07:44,804 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 20:07:44,804 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 20:07:44,809 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 20:07:44,809 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 08:07:41" (1/3) ... [2020-10-23 20:07:44,810 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@93f9594 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:07:44, skipping insertion in model container [2020-10-23 20:07:44,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:07:42" (2/3) ... [2020-10-23 20:07:44,811 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@93f9594 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:07:44, skipping insertion in model container [2020-10-23 20:07:44,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:07:44" (3/3) ... [2020-10-23 20:07:44,813 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product31.cil.c [2020-10-23 20:07:44,829 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 20:07:44,837 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 20:07:44,871 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 20:07:44,900 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 20:07:44,900 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 20:07:44,900 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 20:07:44,900 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 20:07:44,900 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 20:07:44,901 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 20:07:44,901 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 20:07:44,901 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 20:07:44,929 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states. [2020-10-23 20:07:44,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-23 20:07:44,953 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:07:44,955 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 20:07:44,956 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 20:07:44,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:07:44,967 INFO L82 PathProgramCache]: Analyzing trace with hash -1466508485, now seen corresponding path program 1 times [2020-10-23 20:07:44,979 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:07:44,979 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [241153633] [2020-10-23 20:07:44,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:07:45,076 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:07:45,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:07:46,075 WARN L193 SmtUtils]: Spent 510.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:07:46,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:07:46,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:07:46,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:07:46,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:07:46,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:07:46,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:07:46,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:07:46,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:07:46,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:07:46,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:07:46,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 20:07:46,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:07:46,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 20:07:46,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:07:46,263 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 20:07:46,265 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [241153633] [2020-10-23 20:07:46,268 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:07:46,269 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 20:07:46,269 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850829335] [2020-10-23 20:07:46,276 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 20:07:46,277 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:07:46,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 20:07:46,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 20:07:46,297 INFO L87 Difference]: Start difference. First operand 325 states. Second operand 3 states. [2020-10-23 20:07:48,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:07:48,500 INFO L93 Difference]: Finished difference Result 489 states and 584 transitions. [2020-10-23 20:07:48,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 20:07:48,503 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 148 [2020-10-23 20:07:48,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:07:48,524 INFO L225 Difference]: With dead ends: 489 [2020-10-23 20:07:48,524 INFO L226 Difference]: Without dead ends: 304 [2020-10-23 20:07:48,530 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 20:07:48,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2020-10-23 20:07:48,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 261. [2020-10-23 20:07:48,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261 states. [2020-10-23 20:07:48,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 284 transitions. [2020-10-23 20:07:48,725 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 284 transitions. Word has length 148 [2020-10-23 20:07:48,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:07:48,726 INFO L481 AbstractCegarLoop]: Abstraction has 261 states and 284 transitions. [2020-10-23 20:07:48,726 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 20:07:48,727 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 284 transitions. [2020-10-23 20:07:48,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-23 20:07:48,732 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:07:48,733 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 20:07:48,733 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 20:07:48,733 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 20:07:48,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:07:48,734 INFO L82 PathProgramCache]: Analyzing trace with hash 2011960055, now seen corresponding path program 1 times [2020-10-23 20:07:48,735 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:07:48,735 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [969882588] [2020-10-23 20:07:48,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:07:48,741 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:07:48,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:07:49,336 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:07:49,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:07:49,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:07:49,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:07:49,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:07:49,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:07:49,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:07:49,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:07:49,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:07:49,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:07:49,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:07:49,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 20:07:49,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:07:49,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 20:07:49,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:07:49,438 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 20:07:49,439 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [969882588] [2020-10-23 20:07:49,439 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:07:49,439 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 20:07:49,439 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744827489] [2020-10-23 20:07:49,440 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 20:07:49,441 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:07:49,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 20:07:49,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 20:07:49,442 INFO L87 Difference]: Start difference. First operand 261 states and 284 transitions. Second operand 4 states. [2020-10-23 20:07:50,327 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:07:51,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:07:51,646 INFO L93 Difference]: Finished difference Result 397 states and 447 transitions. [2020-10-23 20:07:51,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 20:07:51,647 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 149 [2020-10-23 20:07:51,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:07:51,656 INFO L225 Difference]: With dead ends: 397 [2020-10-23 20:07:51,661 INFO L226 Difference]: Without dead ends: 287 [2020-10-23 20:07:51,667 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 20:07:51,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-10-23 20:07:51,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 251. [2020-10-23 20:07:51,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 251 states. [2020-10-23 20:07:51,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 271 transitions. [2020-10-23 20:07:51,793 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 271 transitions. Word has length 149 [2020-10-23 20:07:51,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:07:51,794 INFO L481 AbstractCegarLoop]: Abstraction has 251 states and 271 transitions. [2020-10-23 20:07:51,794 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 20:07:51,794 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 271 transitions. [2020-10-23 20:07:51,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-10-23 20:07:51,797 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:07:51,798 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] [2020-10-23 20:07:51,798 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 20:07:51,799 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 20:07:51,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:07:51,799 INFO L82 PathProgramCache]: Analyzing trace with hash -1227942579, now seen corresponding path program 1 times [2020-10-23 20:07:51,800 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:07:51,800 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [73780802] [2020-10-23 20:07:51,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:07:51,804 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:07:51,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:07:52,429 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:07:52,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:07:52,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:07:52,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:07:52,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:07:52,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:07:52,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:07:52,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:07:52,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:07:52,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:07:52,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:07:52,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 20:07:52,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:07:52,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-23 20:07:52,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:07:52,616 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 20:07:52,617 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [73780802] [2020-10-23 20:07:52,617 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:07:52,618 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-23 20:07:52,618 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053620074] [2020-10-23 20:07:52,619 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 20:07:52,619 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:07:52,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 20:07:52,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-23 20:07:52,620 INFO L87 Difference]: Start difference. First operand 251 states and 271 transitions. Second operand 9 states. [2020-10-23 20:07:53,363 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:07:53,901 WARN L193 SmtUtils]: Spent 392.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:07:54,345 WARN L193 SmtUtils]: Spent 398.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:07:54,749 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:07:55,188 WARN L193 SmtUtils]: Spent 404.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:07:55,584 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:07:56,976 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:07:59,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:07:59,770 INFO L93 Difference]: Finished difference Result 655 states and 755 transitions. [2020-10-23 20:07:59,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-23 20:07:59,774 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 158 [2020-10-23 20:07:59,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:07:59,779 INFO L225 Difference]: With dead ends: 655 [2020-10-23 20:07:59,779 INFO L226 Difference]: Without dead ends: 519 [2020-10-23 20:07:59,781 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-10-23 20:07:59,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2020-10-23 20:08:00,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 450. [2020-10-23 20:08:00,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 450 states. [2020-10-23 20:08:00,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 504 transitions. [2020-10-23 20:08:00,020 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 504 transitions. Word has length 158 [2020-10-23 20:08:00,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:08:00,021 INFO L481 AbstractCegarLoop]: Abstraction has 450 states and 504 transitions. [2020-10-23 20:08:00,021 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 20:08:00,021 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 504 transitions. [2020-10-23 20:08:00,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-10-23 20:08:00,025 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:08:00,025 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:08:00,026 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 20:08:00,026 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 20:08:00,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:08:00,027 INFO L82 PathProgramCache]: Analyzing trace with hash 1165041770, now seen corresponding path program 1 times [2020-10-23 20:08:00,027 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:08:00,027 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1891657219] [2020-10-23 20:08:00,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:08:00,031 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:08:00,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:08:00,635 WARN L193 SmtUtils]: Spent 443.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:08:00,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:08:00,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:08:00,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:08:00,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:08:00,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:08:00,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:08:00,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:08:00,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:08:00,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:08:00,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:08:00,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-23 20:08:00,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:08:00,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-23 20:08:00,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:08:00,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-23 20:08:00,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:08:00,947 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 20:08:00,948 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1891657219] [2020-10-23 20:08:00,948 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:08:00,949 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-23 20:08:00,949 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387090689] [2020-10-23 20:08:00,950 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-23 20:08:00,950 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:08:00,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-23 20:08:00,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2020-10-23 20:08:00,953 INFO L87 Difference]: Start difference. First operand 450 states and 504 transitions. Second operand 14 states. [2020-10-23 20:08:01,746 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:08:02,303 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:08:02,692 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:08:03,088 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:08:03,503 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:08:03,878 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:08:04,787 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:08:06,513 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:08:07,051 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:08:07,724 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:08:08,280 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:08:08,706 WARN L193 SmtUtils]: Spent 383.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:08:09,137 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:08:09,592 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:08:10,002 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:08:10,456 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:08:11,068 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:08:11,629 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:08:12,114 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:08:12,543 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:08:14,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:08:14,870 INFO L93 Difference]: Finished difference Result 1537 states and 1878 transitions. [2020-10-23 20:08:14,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-23 20:08:14,871 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 167 [2020-10-23 20:08:14,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:08:14,881 INFO L225 Difference]: With dead ends: 1537 [2020-10-23 20:08:14,881 INFO L226 Difference]: Without dead ends: 1202 [2020-10-23 20:08:14,884 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=252, Invalid=1008, Unknown=0, NotChecked=0, Total=1260 [2020-10-23 20:08:14,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1202 states. [2020-10-23 20:08:15,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1202 to 1059. [2020-10-23 20:08:15,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1059 states. [2020-10-23 20:08:15,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1059 states to 1059 states and 1227 transitions. [2020-10-23 20:08:15,453 INFO L78 Accepts]: Start accepts. Automaton has 1059 states and 1227 transitions. Word has length 167 [2020-10-23 20:08:15,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:08:15,454 INFO L481 AbstractCegarLoop]: Abstraction has 1059 states and 1227 transitions. [2020-10-23 20:08:15,454 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-23 20:08:15,454 INFO L276 IsEmpty]: Start isEmpty. Operand 1059 states and 1227 transitions. [2020-10-23 20:08:15,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-10-23 20:08:15,460 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:08:15,460 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:08:15,460 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 20:08:15,461 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 20:08:15,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:08:15,461 INFO L82 PathProgramCache]: Analyzing trace with hash 1691425724, now seen corresponding path program 1 times [2020-10-23 20:08:15,462 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:08:15,462 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2146751888] [2020-10-23 20:08:15,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:08:15,466 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:08:15,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:08:15,901 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:08:15,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:08:15,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:08:15,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:08:15,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:08:15,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:08:15,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:08:15,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:08:15,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:08:15,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:08:15,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:08:16,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-23 20:08:16,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:08:16,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-23 20:08:16,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:08:16,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-23 20:08:16,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:08:16,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-10-23 20:08:16,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:08:16,088 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 20:08:16,089 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2146751888] [2020-10-23 20:08:16,089 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:08:16,090 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 20:08:16,090 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832277027] [2020-10-23 20:08:16,094 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-23 20:08:16,097 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:08:16,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-23 20:08:16,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-23 20:08:16,103 INFO L87 Difference]: Start difference. First operand 1059 states and 1227 transitions. Second operand 6 states. [2020-10-23 20:08:16,828 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:08:18,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:08:18,283 INFO L93 Difference]: Finished difference Result 1652 states and 1974 transitions. [2020-10-23 20:08:18,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-23 20:08:18,284 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 172 [2020-10-23 20:08:18,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:08:18,290 INFO L225 Difference]: With dead ends: 1652 [2020-10-23 20:08:18,290 INFO L226 Difference]: Without dead ends: 708 [2020-10-23 20:08:18,295 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-10-23 20:08:18,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2020-10-23 20:08:18,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 674. [2020-10-23 20:08:18,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 674 states. [2020-10-23 20:08:18,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 674 states to 674 states and 733 transitions. [2020-10-23 20:08:18,704 INFO L78 Accepts]: Start accepts. Automaton has 674 states and 733 transitions. Word has length 172 [2020-10-23 20:08:18,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:08:18,705 INFO L481 AbstractCegarLoop]: Abstraction has 674 states and 733 transitions. [2020-10-23 20:08:18,705 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-23 20:08:18,705 INFO L276 IsEmpty]: Start isEmpty. Operand 674 states and 733 transitions. [2020-10-23 20:08:18,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-10-23 20:08:18,710 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:08:18,711 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:08:18,711 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 20:08:18,712 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 20:08:18,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:08:18,713 INFO L82 PathProgramCache]: Analyzing trace with hash -1290738462, now seen corresponding path program 1 times [2020-10-23 20:08:18,713 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:08:18,713 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [757725819] [2020-10-23 20:08:18,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:08:18,929 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 20:08:19,223 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 20:08:19,465 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 20:08:19,711 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-10-23 20:08:19,993 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:08:20,249 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 20:08:20,526 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:08:20,787 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 20:08:21,043 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-10-23 20:08:21,320 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:08:21,589 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-10-23 20:08:21,855 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:08:22,133 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:08:22,418 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:08:22,888 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:08:23,223 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:08:23,565 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:08:23,896 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:08:24,264 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:08:24,623 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:08:24,974 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:08:25,319 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:08:25,323 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:08:25,663 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:08:26,003 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 113 [2020-10-23 20:08:26,350 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 113 [2020-10-23 20:08:26,759 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:08:27,141 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:08:27,488 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:08:27,823 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 114 [2020-10-23 20:08:28,163 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 114 [2020-10-23 20:08:28,166 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:08:28,496 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:08:28,869 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:08:29,215 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:08:29,560 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:08:29,929 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:08:30,278 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:08:30,610 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:08:30,944 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:08:30,948 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:08:31,316 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:08:31,675 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:08:32,034 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:08:32,391 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:08:32,761 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:08:33,106 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:08:33,490 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:08:33,859 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:08:33,863 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:08:36,643 WARN L193 SmtUtils]: Spent 605.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:08:36,678 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:39,432 WARN L193 SmtUtils]: Spent 595.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:08:39,443 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:42,059 WARN L193 SmtUtils]: Spent 488.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:08:42,070 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:44,748 WARN L193 SmtUtils]: Spent 565.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:08:44,755 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:46,121 WARN L193 SmtUtils]: Spent 540.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:08:46,128 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:48,708 WARN L193 SmtUtils]: Spent 481.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:08:48,712 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:51,334 WARN L193 SmtUtils]: Spent 483.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:08:52,858 WARN L193 SmtUtils]: Spent 532.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:08:52,863 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:52,868 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:08:54,095 WARN L193 SmtUtils]: Spent 506.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:08:55,346 WARN L193 SmtUtils]: Spent 471.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 166 [2020-10-23 20:08:55,353 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:57,827 WARN L193 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 164 [2020-10-23 20:08:57,832 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:09:00,465 WARN L193 SmtUtils]: Spent 544.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:09:00,471 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:09:01,787 WARN L193 SmtUtils]: Spent 457.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:09:01,792 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:09:04,358 WARN L193 SmtUtils]: Spent 470.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:09:04,364 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:09:06,921 WARN L193 SmtUtils]: Spent 441.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:09:06,927 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:09:09,478 WARN L193 SmtUtils]: Spent 484.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:09:09,483 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:09:09,488 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:09:12,084 WARN L193 SmtUtils]: Spent 532.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:09:14,614 WARN L193 SmtUtils]: Spent 471.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:09:17,200 WARN L193 SmtUtils]: Spent 524.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:09:19,797 WARN L193 SmtUtils]: Spent 529.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:09:22,348 WARN L193 SmtUtils]: Spent 482.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:09:22,354 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:09:24,885 WARN L193 SmtUtils]: Spent 446.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:09:24,891 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:09:27,487 WARN L193 SmtUtils]: Spent 475.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:09:29,988 WARN L193 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:09:29,991 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:09:29,995 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:09:32,512 WARN L193 SmtUtils]: Spent 463.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:09:32,516 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:09:33,639 WARN L193 SmtUtils]: Spent 435.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:09:33,643 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:09:36,172 WARN L193 SmtUtils]: Spent 453.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:09:36,177 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:09:38,818 WARN L193 SmtUtils]: Spent 470.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:09:38,829 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:09:41,404 WARN L193 SmtUtils]: Spent 480.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 164 [2020-10-23 20:09:41,407 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:09:43,995 WARN L193 SmtUtils]: Spent 491.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:09:44,002 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:09:46,549 WARN L193 SmtUtils]: Spent 453.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:09:46,554 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:09:49,113 WARN L193 SmtUtils]: Spent 499.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 166 [2020-10-23 20:09:49,117 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:09:49,121 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:09:49,515 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:09:49,912 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:09:50,304 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:09:50,696 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:09:51,078 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:09:51,465 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:09:51,821 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:09:52,232 WARN L193 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:09:52,235 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:09:54,805 WARN L193 SmtUtils]: Spent 480.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:09:54,809 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:09:57,449 WARN L193 SmtUtils]: Spent 548.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:10:00,055 WARN L193 SmtUtils]: Spent 527.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:10:00,059 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:01,647 WARN L193 SmtUtils]: Spent 578.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:10:01,651 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:04,226 WARN L193 SmtUtils]: Spent 515.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:10:04,231 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:06,837 WARN L193 SmtUtils]: Spent 503.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:10:06,840 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:09,428 WARN L193 SmtUtils]: Spent 498.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:10:09,432 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:12,027 WARN L193 SmtUtils]: Spent 501.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:10:12,030 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:12,033 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:10:12,387 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:10:12,770 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:10:13,119 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:10:13,472 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:10:13,838 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:10:14,208 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:10:14,570 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:10:14,926 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:10:14,928 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:10:17,553 WARN L193 SmtUtils]: Spent 529.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:10:17,557 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:20,135 WARN L193 SmtUtils]: Spent 525.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:10:20,140 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:22,678 WARN L193 SmtUtils]: Spent 465.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:10:22,681 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:25,306 WARN L193 SmtUtils]: Spent 558.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:10:26,940 WARN L193 SmtUtils]: Spent 531.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:10:28,578 WARN L193 SmtUtils]: Spent 515.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:10:31,138 WARN L193 SmtUtils]: Spent 494.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:10:33,744 WARN L193 SmtUtils]: Spent 551.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:10:33,747 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:33,751 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:10:35,767 WARN L193 SmtUtils]: Spent 547.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:10:35,771 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:38,321 WARN L193 SmtUtils]: Spent 486.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:10:38,325 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:40,883 WARN L193 SmtUtils]: Spent 505.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:10:40,888 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:43,324 WARN L193 SmtUtils]: Spent 541.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:10:43,330 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:45,975 WARN L193 SmtUtils]: Spent 532.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:10:48,600 WARN L193 SmtUtils]: Spent 554.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:10:48,604 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:51,183 WARN L193 SmtUtils]: Spent 519.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:10:51,187 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:53,767 WARN L193 SmtUtils]: Spent 522.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:10:53,770 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:53,774 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:10:56,362 WARN L193 SmtUtils]: Spent 539.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:10:56,366 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:59,042 WARN L193 SmtUtils]: Spent 605.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:10:59,045 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:01,616 WARN L193 SmtUtils]: Spent 513.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:11:01,619 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:03,380 WARN L193 SmtUtils]: Spent 569.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:11:03,384 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:05,986 WARN L193 SmtUtils]: Spent 535.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:11:05,992 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:08,671 WARN L193 SmtUtils]: Spent 610.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:11:08,676 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:11,270 WARN L193 SmtUtils]: Spent 534.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:11:11,274 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:13,963 WARN L193 SmtUtils]: Spent 583.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:11:13,967 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:13,970 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:11:14,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:11:14,284 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:11:15,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:11:15,227 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:11:15,418 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 20:11:15,418 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 20:11:15,421 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-23 20:11:15,468 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 08:11:15 BoogieIcfgContainer [2020-10-23 20:11:15,468 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 20:11:15,474 INFO L168 Benchmark]: Toolchain (without parser) took 213628.74 ms. Allocated memory was 159.4 MB in the beginning and 715.1 MB in the end (delta: 555.7 MB). Free memory was 135.4 MB in the beginning and 293.9 MB in the end (delta: -158.5 MB). Peak memory consumption was 398.2 MB. Max. memory is 8.0 GB. [2020-10-23 20:11:15,476 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 125.8 MB. Free memory was 103.5 MB in the beginning and 103.5 MB in the end (delta: 70.2 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 20:11:15,483 INFO L168 Benchmark]: CACSL2BoogieTranslator took 887.57 ms. Allocated memory is still 159.4 MB. Free memory was 134.8 MB in the beginning and 113.0 MB in the end (delta: 21.8 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-10-23 20:11:15,484 INFO L168 Benchmark]: Boogie Preprocessor took 177.48 ms. Allocated memory is still 159.4 MB. Free memory was 113.0 MB in the beginning and 109.2 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-23 20:11:15,484 INFO L168 Benchmark]: RCFGBuilder took 1881.86 ms. Allocated memory is still 159.4 MB. Free memory was 109.2 MB in the beginning and 84.2 MB in the end (delta: 24.9 MB). Peak memory consumption was 25.4 MB. Max. memory is 8.0 GB. [2020-10-23 20:11:15,486 INFO L168 Benchmark]: TraceAbstraction took 210664.25 ms. Allocated memory was 159.4 MB in the beginning and 715.1 MB in the end (delta: 555.7 MB). Free memory was 83.7 MB in the beginning and 293.9 MB in the end (delta: -210.2 MB). Peak memory consumption was 345.6 MB. Max. memory is 8.0 GB. [2020-10-23 20:11:15,488 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 125.8 MB. Free memory was 103.5 MB in the beginning and 103.5 MB in the end (delta: 70.2 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 887.57 ms. Allocated memory is still 159.4 MB. Free memory was 134.8 MB in the beginning and 113.0 MB in the end (delta: 21.8 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 177.48 ms. Allocated memory is still 159.4 MB. Free memory was 113.0 MB in the beginning and 109.2 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1881.86 ms. Allocated memory is still 159.4 MB. Free memory was 109.2 MB in the beginning and 84.2 MB in the end (delta: 24.9 MB). Peak memory consumption was 25.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 210664.25 ms. Allocated memory was 159.4 MB in the beginning and 715.1 MB in the end (delta: 555.7 MB). Free memory was 83.7 MB in the beginning and 293.9 MB in the end (delta: -210.2 MB). Peak memory consumption was 345.6 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: [L42] int cleanupTimeShifts = 4; [L350] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L552] int waterLevel = 1; [L553] int methaneLevelCritical = 0; [L712] int pumpRunning = 0; [L713] int systemActive = 1; [L123] int retValue_acc ; [L124] int tmp ; [L128] FCALL select_helpers() [L129] FCALL select_features() [L130] CALL, EXPR valid_product() [L172] int retValue_acc ; [L175] retValue_acc = 1 [L176] return (retValue_acc); [L130] RET, EXPR valid_product() [L130] tmp = valid_product() [L132] COND TRUE \read(tmp) [L134] FCALL setup() [L135] CALL runTest() [L114] CALL test() [L643] int splverifierCounter ; [L644] int tmp ; [L645] int tmp___0 ; [L646] int tmp___1 ; [L647] int tmp___2 ; [L650] splverifierCounter = 0 [L652] COND TRUE 1 [L654] COND TRUE splverifierCounter < 4 [L660] tmp = __VERIFIER_nondet_int() [L662] COND TRUE \read(tmp) [L664] CALL waterRise() [L570] COND TRUE waterLevel < 2 [L571] waterLevel = waterLevel + 1 [L664] RET waterRise() [L670] tmp___0 = __VERIFIER_nondet_int() [L672] COND FALSE !(\read(tmp___0)) [L680] tmp___2 = __VERIFIER_nondet_int() [L682] COND FALSE !(\read(tmp___2)) [L686] tmp___1 = __VERIFIER_nondet_int() [L688] COND TRUE \read(tmp___1) [L690] CALL stopSystem() [L911] COND FALSE !(\read(pumpRunning)) [L918] systemActive = 0 [L690] RET stopSystem() [L697] CALL timeShift() [L720] COND FALSE !(\read(pumpRunning)) [L727] COND FALSE !(\read(systemActive)) [L735] CALL __utac_acc__Specification4_spec__1() [L925] int tmp ; [L926] int tmp___0 ; [L930] CALL, EXPR getWaterLevel() [L623] int retValue_acc ; [L626] retValue_acc = waterLevel [L627] return (retValue_acc); [L930] RET, EXPR getWaterLevel() [L930] tmp = getWaterLevel() [L932] COND FALSE !(tmp == 0) [L735] RET __utac_acc__Specification4_spec__1() [L697] RET timeShift() [L652] COND TRUE 1 [L654] COND TRUE splverifierCounter < 4 [L660] tmp = __VERIFIER_nondet_int() [L662] COND TRUE \read(tmp) [L664] CALL waterRise() [L570] COND TRUE waterLevel < 2 [L571] waterLevel = waterLevel + 1 [L664] RET waterRise() [L670] tmp___0 = __VERIFIER_nondet_int() [L672] COND FALSE !(\read(tmp___0)) [L680] tmp___2 = __VERIFIER_nondet_int() [L682] COND TRUE \read(tmp___2) [L697] CALL timeShift() [L720] COND FALSE !(\read(pumpRunning)) [L727] COND FALSE !(\read(systemActive)) [L735] CALL __utac_acc__Specification4_spec__1() [L925] int tmp ; [L926] int tmp___0 ; [L930] CALL, EXPR getWaterLevel() [L623] int retValue_acc ; [L626] retValue_acc = waterLevel [L627] return (retValue_acc); [L930] RET, EXPR getWaterLevel() [L930] tmp = getWaterLevel() [L932] COND TRUE tmp == 0 [L934] CALL, EXPR isPumpRunning() [L844] int retValue_acc ; [L847] retValue_acc = pumpRunning [L848] return (retValue_acc); [L934] RET, EXPR isPumpRunning() [L934] tmp___0 = isPumpRunning() [L936] COND TRUE \read(tmp___0) [L938] CALL __automaton_fail() [L954] CALL reach_error() [L3] __assert_fail("0", "minepump_spec4_product31.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 643 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 210.5s, OverallIterations: 6, TraceHistogramMax: 2, AutomataDifference: 27.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1168 SDtfs, 2003 SDslu, 1959 SDs, 0 SdLazy, 4474 SolverSat, 707 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 12.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 156 GetRequests, 94 SyntacticMatches, 1 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 13.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1059occurred 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: 1.5s AutomataMinimizationTime, 5 MinimizatonAttempts, 325 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...