/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_product12.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 20:01:49,995 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 20:01:50,003 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 20:01:50,063 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 20:01:50,064 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 20:01:50,066 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 20:01:50,068 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 20:01:50,072 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 20:01:50,075 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 20:01:50,077 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 20:01:50,079 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 20:01:50,081 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 20:01:50,082 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 20:01:50,084 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 20:01:50,086 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 20:01:50,088 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 20:01:50,090 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 20:01:50,092 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 20:01:50,095 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 20:01:50,099 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 20:01:50,102 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 20:01:50,111 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 20:01:50,112 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 20:01:50,114 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 20:01:50,117 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 20:01:50,118 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 20:01:50,118 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 20:01:50,120 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 20:01:50,120 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 20:01:50,122 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 20:01:50,122 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 20:01:50,123 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 20:01:50,125 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 20:01:50,126 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 20:01:50,127 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 20:01:50,128 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 20:01:50,129 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 20:01:50,129 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 20:01:50,130 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 20:01:50,132 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 20:01:50,134 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 20:01:50,136 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 20:01:50,165 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 20:01:50,165 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 20:01:50,173 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 20:01:50,173 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 20:01:50,174 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 20:01:50,174 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 20:01:50,174 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 20:01:50,175 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 20:01:50,175 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 20:01:50,175 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 20:01:50,177 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 20:01:50,177 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 20:01:50,178 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 20:01:50,178 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 20:01:50,178 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 20:01:50,178 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 20:01:50,179 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 20:01:50,179 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 20:01:50,179 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 20:01:50,180 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 20:01:50,180 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 20:01:50,180 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 20:01:50,181 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 20:01:50,700 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 20:01:50,750 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 20:01:50,755 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 20:01:50,757 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 20:01:50,758 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 20:01:50,760 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product12.cil.c [2020-10-23 20:01:50,849 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aead3c342/5fcce44c510b48c6875cae40c69b7bca/FLAG825eea915 [2020-10-23 20:01:51,633 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 20:01:51,634 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product12.cil.c [2020-10-23 20:01:51,667 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aead3c342/5fcce44c510b48c6875cae40c69b7bca/FLAG825eea915 [2020-10-23 20:01:51,902 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aead3c342/5fcce44c510b48c6875cae40c69b7bca [2020-10-23 20:01:51,910 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 20:01:51,923 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 20:01:51,929 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 20:01:51,929 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 20:01:51,934 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 20:01:51,935 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:01:51" (1/1) ... [2020-10-23 20:01:51,940 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c75a2e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:01:51, skipping insertion in model container [2020-10-23 20:01:51,941 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:01:51" (1/1) ... [2020-10-23 20:01:51,952 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 20:01:52,014 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 20:01:52,439 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:01:52,455 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 20:01:52,581 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:01:52,628 INFO L208 MainTranslator]: Completed translation [2020-10-23 20:01:52,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:01:52 WrapperNode [2020-10-23 20:01:52,629 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 20:01:52,631 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 20:01:52,632 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 20:01:52,632 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 20:01:52,654 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:01:52" (1/1) ... [2020-10-23 20:01:52,655 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:01:52" (1/1) ... [2020-10-23 20:01:52,677 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:01:52" (1/1) ... [2020-10-23 20:01:52,678 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:01:52" (1/1) ... [2020-10-23 20:01:52,716 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:01:52" (1/1) ... [2020-10-23 20:01:52,731 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:01:52" (1/1) ... [2020-10-23 20:01:52,737 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:01:52" (1/1) ... [2020-10-23 20:01:52,746 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 20:01:52,748 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 20:01:52,748 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 20:01:52,748 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 20:01:52,749 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:01:52" (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 20:01:52,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 20:01:52,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 20:01:52,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 20:01:52,861 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 20:01:52,861 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 20:01:52,861 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 20:01:52,861 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 20:01:52,862 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 20:01:52,862 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 20:01:52,862 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 20:01:52,862 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-10-23 20:01:52,863 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 20:01:52,863 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 20:01:52,863 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 20:01:52,863 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-10-23 20:01:52,863 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 20:01:52,863 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 20:01:52,864 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 20:01:52,864 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 20:01:52,864 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 20:01:52,864 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-23 20:01:52,864 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-10-23 20:01:52,865 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 20:01:52,865 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 20:01:52,865 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 20:01:52,865 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 20:01:52,865 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 20:01:52,866 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 20:01:52,866 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 20:01:52,866 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 20:01:52,866 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 20:01:52,866 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 20:01:52,866 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 20:01:52,867 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 20:01:52,867 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 20:01:52,867 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 20:01:52,867 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 20:01:52,867 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 20:01:52,868 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 20:01:52,868 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 20:01:52,868 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 20:01:52,868 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 20:01:52,868 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 20:01:52,868 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 20:01:52,869 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 20:01:52,869 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 20:01:52,869 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 20:01:52,869 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 20:01:52,869 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 20:01:52,869 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 20:01:52,869 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 20:01:52,870 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 20:01:52,870 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-10-23 20:01:52,870 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-10-23 20:01:52,870 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-23 20:01:52,870 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 20:01:52,870 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 20:01:52,886 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 20:01:52,890 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 20:01:52,890 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 20:01:52,890 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 20:01:52,890 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 20:01:52,890 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-10-23 20:01:52,890 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 20:01:52,890 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 20:01:52,891 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 20:01:52,891 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 20:01:52,891 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 20:01:52,893 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 20:01:52,893 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 20:01:52,893 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 20:01:52,894 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 20:01:52,894 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 20:01:52,894 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 20:01:52,894 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 20:01:52,894 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 20:01:52,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 20:01:52,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 20:01:52,894 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 20:01:52,895 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 20:01:52,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 20:01:52,898 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 20:01:52,898 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 20:01:52,899 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 20:01:52,900 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 20:01:52,900 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 20:01:52,902 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 20:01:52,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 20:01:52,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 20:01:52,904 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 20:01:54,742 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 20:01:54,743 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 20:01:54,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:01:54 BoogieIcfgContainer [2020-10-23 20:01:54,747 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 20:01:54,749 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 20:01:54,749 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 20:01:54,754 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 20:01:54,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 08:01:51" (1/3) ... [2020-10-23 20:01:54,756 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@729ae6c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:01:54, skipping insertion in model container [2020-10-23 20:01:54,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:01:52" (2/3) ... [2020-10-23 20:01:54,757 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@729ae6c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:01:54, skipping insertion in model container [2020-10-23 20:01:54,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:01:54" (3/3) ... [2020-10-23 20:01:54,759 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product12.cil.c [2020-10-23 20:01:54,772 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 20:01:54,779 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 20:01:54,795 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 20:01:54,823 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 20:01:54,823 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 20:01:54,824 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 20:01:54,824 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 20:01:54,824 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 20:01:54,824 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 20:01:54,824 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 20:01:54,825 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 20:01:54,850 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states. [2020-10-23 20:01:54,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-23 20:01:54,875 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:01:54,877 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 20:01:54,877 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 20:01:54,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:01:54,897 INFO L82 PathProgramCache]: Analyzing trace with hash -1403752506, now seen corresponding path program 1 times [2020-10-23 20:01:54,911 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:01:54,912 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [166014179] [2020-10-23 20:01:54,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:01:55,023 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:01:55,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:01:55,899 WARN L193 SmtUtils]: Spent 433.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:01:55,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:01:55,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:01:56,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:01:56,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:01:56,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:01:56,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:01:56,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:01:56,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:01:56,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:01:56,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:01:56,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 20:01:56,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:01:56,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 20:01:56,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:01:56,162 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 20:01:56,163 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [166014179] [2020-10-23 20:01:56,167 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:01:56,169 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 20:01:56,171 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250581965] [2020-10-23 20:01:56,183 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 20:01:56,183 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:01:56,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 20:01:56,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 20:01:56,211 INFO L87 Difference]: Start difference. First operand 263 states. Second operand 3 states. [2020-10-23 20:01:57,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:01:57,943 INFO L93 Difference]: Finished difference Result 382 states and 458 transitions. [2020-10-23 20:01:57,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 20:01:57,946 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 148 [2020-10-23 20:01:57,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:01:57,966 INFO L225 Difference]: With dead ends: 382 [2020-10-23 20:01:57,966 INFO L226 Difference]: Without dead ends: 249 [2020-10-23 20:01:57,973 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 20:01:57,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2020-10-23 20:01:58,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 209. [2020-10-23 20:01:58,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2020-10-23 20:01:58,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 223 transitions. [2020-10-23 20:01:58,188 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 223 transitions. Word has length 148 [2020-10-23 20:01:58,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:01:58,191 INFO L481 AbstractCegarLoop]: Abstraction has 209 states and 223 transitions. [2020-10-23 20:01:58,192 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 20:01:58,192 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 223 transitions. [2020-10-23 20:01:58,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-23 20:01:58,208 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:01:58,209 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 20:01:58,209 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 20:01:58,210 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 20:01:58,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:01:58,211 INFO L82 PathProgramCache]: Analyzing trace with hash -1547793185, now seen corresponding path program 1 times [2020-10-23 20:01:58,211 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:01:58,211 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1302112379] [2020-10-23 20:01:58,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:01:58,227 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:01:58,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:01:58,918 WARN L193 SmtUtils]: Spent 413.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:01:58,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:01:58,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:01:59,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:01:59,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:01:59,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:01:59,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:01:59,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:01:59,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:01:59,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:01:59,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:01:59,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 20:01:59,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:01:59,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 20:01:59,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:01:59,059 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 20:01:59,059 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1302112379] [2020-10-23 20:01:59,060 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:01:59,060 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 20:01:59,060 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971796574] [2020-10-23 20:01:59,061 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 20:01:59,061 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:01:59,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 20:01:59,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 20:01:59,062 INFO L87 Difference]: Start difference. First operand 209 states and 223 transitions. Second operand 4 states. [2020-10-23 20:02:00,169 WARN L193 SmtUtils]: Spent 404.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:02:01,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:02:01,148 INFO L93 Difference]: Finished difference Result 283 states and 315 transitions. [2020-10-23 20:02:01,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 20:02:01,149 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 149 [2020-10-23 20:02:01,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:02:01,153 INFO L225 Difference]: With dead ends: 283 [2020-10-23 20:02:01,153 INFO L226 Difference]: Without dead ends: 232 [2020-10-23 20:02:01,155 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-23 20:02:01,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2020-10-23 20:02:01,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 199. [2020-10-23 20:02:01,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 199 states. [2020-10-23 20:02:01,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 210 transitions. [2020-10-23 20:02:01,264 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 210 transitions. Word has length 149 [2020-10-23 20:02:01,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:02:01,264 INFO L481 AbstractCegarLoop]: Abstraction has 199 states and 210 transitions. [2020-10-23 20:02:01,264 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 20:02:01,265 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 210 transitions. [2020-10-23 20:02:01,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-10-23 20:02:01,267 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:02:01,267 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:02:01,268 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 20:02:01,268 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 20:02:01,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:02:01,269 INFO L82 PathProgramCache]: Analyzing trace with hash 659521178, now seen corresponding path program 1 times [2020-10-23 20:02:01,269 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:02:01,270 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [363178302] [2020-10-23 20:02:01,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:02:01,275 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:02:01,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:02:01,848 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:02:01,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:02:01,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:02:01,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:02:01,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:02:01,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:02:01,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:02:01,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:02:01,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:02:01,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:02:01,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:02:01,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-23 20:02:01,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:02:02,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-23 20:02:02,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:02:02,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-23 20:02:02,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:02:02,060 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 20:02:02,062 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [363178302] [2020-10-23 20:02:02,063 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:02:02,063 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 20:02:02,063 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174317204] [2020-10-23 20:02:02,065 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 20:02:02,066 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:02:02,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 20:02:02,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 20:02:02,068 INFO L87 Difference]: Start difference. First operand 199 states and 210 transitions. Second operand 10 states. [2020-10-23 20:02:02,995 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:02:03,562 WARN L193 SmtUtils]: Spent 412.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:02:04,004 WARN L193 SmtUtils]: Spent 408.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 20:02:04,459 WARN L193 SmtUtils]: Spent 398.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:02:04,925 WARN L193 SmtUtils]: Spent 406.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:02:05,356 WARN L193 SmtUtils]: Spent 398.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:02:06,722 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:02:08,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:02:08,464 INFO L93 Difference]: Finished difference Result 515 states and 599 transitions. [2020-10-23 20:02:08,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-23 20:02:08,464 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 162 [2020-10-23 20:02:08,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:02:08,470 INFO L225 Difference]: With dead ends: 515 [2020-10-23 20:02:08,470 INFO L226 Difference]: Without dead ends: 431 [2020-10-23 20:02:08,472 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-10-23 20:02:08,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2020-10-23 20:02:08,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 330. [2020-10-23 20:02:08,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 330 states. [2020-10-23 20:02:08,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 362 transitions. [2020-10-23 20:02:08,629 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 362 transitions. Word has length 162 [2020-10-23 20:02:08,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:02:08,630 INFO L481 AbstractCegarLoop]: Abstraction has 330 states and 362 transitions. [2020-10-23 20:02:08,630 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 20:02:08,630 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 362 transitions. [2020-10-23 20:02:08,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-10-23 20:02:08,633 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:02:08,633 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:02:08,633 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 20:02:08,634 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 20:02:08,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:02:08,634 INFO L82 PathProgramCache]: Analyzing trace with hash 1881174672, now seen corresponding path program 1 times [2020-10-23 20:02:08,634 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:02:08,635 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1760419077] [2020-10-23 20:02:08,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:02:08,639 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:02:08,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:02:09,145 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:02:09,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:02:09,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:02:09,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:02:09,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:02:09,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:02:09,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:02:09,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:02:09,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:02:09,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:02:09,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:02:09,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-23 20:02:09,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:02:09,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 20:02:09,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:02:09,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-23 20:02:09,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:02:09,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-23 20:02:09,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:02:09,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:02:09,423 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1760419077] [2020-10-23 20:02:09,424 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:02:09,424 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-23 20:02:09,424 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786457407] [2020-10-23 20:02:09,424 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-23 20:02:09,425 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:02:09,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-23 20:02:09,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2020-10-23 20:02:09,426 INFO L87 Difference]: Start difference. First operand 330 states and 362 transitions. Second operand 14 states. [2020-10-23 20:02:10,153 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:02:10,671 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:02:11,095 WARN L193 SmtUtils]: Spent 390.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:02:11,525 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:02:11,926 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:02:12,353 WARN L193 SmtUtils]: Spent 391.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:02:13,389 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:02:14,741 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:02:15,183 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:02:15,681 WARN L193 SmtUtils]: Spent 391.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:02:16,131 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:02:16,553 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:02:16,972 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:02:17,394 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:02:17,831 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:02:18,261 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:02:18,742 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:02:19,246 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:02:19,702 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:02:20,199 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:02:21,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:02:21,878 INFO L93 Difference]: Finished difference Result 1019 states and 1240 transitions. [2020-10-23 20:02:21,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-23 20:02:21,878 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 165 [2020-10-23 20:02:21,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:02:21,888 INFO L225 Difference]: With dead ends: 1019 [2020-10-23 20:02:21,888 INFO L226 Difference]: Without dead ends: 804 [2020-10-23 20:02:21,891 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 8.7s TimeCoverageRelationStatistics Valid=252, Invalid=1008, Unknown=0, NotChecked=0, Total=1260 [2020-10-23 20:02:21,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 804 states. [2020-10-23 20:02:22,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 804 to 691. [2020-10-23 20:02:22,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 691 states. [2020-10-23 20:02:22,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 789 transitions. [2020-10-23 20:02:22,241 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 789 transitions. Word has length 165 [2020-10-23 20:02:22,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:02:22,242 INFO L481 AbstractCegarLoop]: Abstraction has 691 states and 789 transitions. [2020-10-23 20:02:22,242 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-23 20:02:22,242 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 789 transitions. [2020-10-23 20:02:22,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-10-23 20:02:22,246 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:02:22,247 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:02:22,247 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 20:02:22,248 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 20:02:22,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:02:22,249 INFO L82 PathProgramCache]: Analyzing trace with hash -921311082, now seen corresponding path program 1 times [2020-10-23 20:02:22,249 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:02:22,249 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1658038527] [2020-10-23 20:02:22,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:02:22,254 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:02:22,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:02:22,713 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:02:22,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:02:22,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:02:22,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:02:22,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:02:22,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:02:22,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:02:22,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:02:22,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:02:22,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:02:22,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:02:22,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-23 20:02:22,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:02:22,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 20:02:22,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:02:22,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-23 20:02:22,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:02:22,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-23 20:02:22,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:02:22,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-10-23 20:02:22,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:02:22,911 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 20:02:22,911 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1658038527] [2020-10-23 20:02:22,912 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:02:22,912 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 20:02:22,912 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291650310] [2020-10-23 20:02:22,913 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-23 20:02:22,913 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:02:22,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-23 20:02:22,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-23 20:02:22,918 INFO L87 Difference]: Start difference. First operand 691 states and 789 transitions. Second operand 6 states. [2020-10-23 20:02:23,751 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:02:25,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:02:25,247 INFO L93 Difference]: Finished difference Result 1293 states and 1531 transitions. [2020-10-23 20:02:25,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-23 20:02:25,249 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 170 [2020-10-23 20:02:25,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:02:25,256 INFO L225 Difference]: With dead ends: 1293 [2020-10-23 20:02:25,257 INFO L226 Difference]: Without dead ends: 717 [2020-10-23 20:02:25,263 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-10-23 20:02:25,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2020-10-23 20:02:25,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 626. [2020-10-23 20:02:25,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 626 states. [2020-10-23 20:02:25,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 626 states to 626 states and 685 transitions. [2020-10-23 20:02:25,618 INFO L78 Accepts]: Start accepts. Automaton has 626 states and 685 transitions. Word has length 170 [2020-10-23 20:02:25,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:02:25,619 INFO L481 AbstractCegarLoop]: Abstraction has 626 states and 685 transitions. [2020-10-23 20:02:25,619 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-23 20:02:25,619 INFO L276 IsEmpty]: Start isEmpty. Operand 626 states and 685 transitions. [2020-10-23 20:02:25,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2020-10-23 20:02:25,624 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:02:25,625 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:02:25,625 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 20:02:25,626 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 20:02:25,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:02:25,627 INFO L82 PathProgramCache]: Analyzing trace with hash 1796153570, now seen corresponding path program 1 times [2020-10-23 20:02:25,627 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:02:25,627 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1773983025] [2020-10-23 20:02:25,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:02:25,795 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2020-10-23 20:02:26,126 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 54 [2020-10-23 20:02:26,405 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2020-10-23 20:02:26,647 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2020-10-23 20:02:26,906 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 54 [2020-10-23 20:02:27,149 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2020-10-23 20:02:27,390 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2020-10-23 20:02:27,628 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2020-10-23 20:02:27,870 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2020-10-23 20:02:28,126 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 54 [2020-10-23 20:02:28,377 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2020-10-23 20:02:28,599 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2020-10-23 20:02:28,847 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2020-10-23 20:02:29,087 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2020-10-23 20:02:32,054 WARN L193 SmtUtils]: Spent 659.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 155 [2020-10-23 20:02:32,094 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:02:34,615 WARN L193 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-23 20:02:34,621 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:02:37,182 WARN L193 SmtUtils]: Spent 457.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-23 20:02:37,189 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:02:39,816 WARN L193 SmtUtils]: Spent 485.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 155 [2020-10-23 20:02:39,822 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:02:42,372 WARN L193 SmtUtils]: Spent 431.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 155 [2020-10-23 20:02:42,378 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:02:44,922 WARN L193 SmtUtils]: Spent 433.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-23 20:02:44,928 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:02:47,432 WARN L193 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-23 20:02:47,438 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:02:48,541 WARN L193 SmtUtils]: Spent 481.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 155 [2020-10-23 20:02:48,546 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:02:48,552 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:02:49,989 WARN L193 SmtUtils]: Spent 471.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 156 [2020-10-23 20:02:49,994 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:02:52,520 WARN L193 SmtUtils]: Spent 423.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 154 [2020-10-23 20:02:52,526 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:02:53,959 WARN L193 SmtUtils]: Spent 435.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 156 [2020-10-23 20:02:53,964 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:02:56,526 WARN L193 SmtUtils]: Spent 457.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 156 [2020-10-23 20:02:56,530 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:02:59,000 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 154 [2020-10-23 20:03:01,552 WARN L193 SmtUtils]: Spent 464.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 156 [2020-10-23 20:03:01,559 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:03:04,087 WARN L193 SmtUtils]: Spent 441.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 154 [2020-10-23 20:03:04,092 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:03:06,642 WARN L193 SmtUtils]: Spent 465.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 154 [2020-10-23 20:03:06,651 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:03:06,659 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:03:09,172 WARN L193 SmtUtils]: Spent 432.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-23 20:03:09,177 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:03:10,425 WARN L193 SmtUtils]: Spent 482.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 155 [2020-10-23 20:03:10,432 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:03:13,035 WARN L193 SmtUtils]: Spent 479.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-23 20:03:13,042 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:03:15,739 WARN L193 SmtUtils]: Spent 630.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-23 20:03:15,744 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:03:17,132 WARN L193 SmtUtils]: Spent 487.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 155 [2020-10-23 20:03:17,137 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:03:19,717 WARN L193 SmtUtils]: Spent 466.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 155 [2020-10-23 20:03:19,722 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:03:22,269 WARN L193 SmtUtils]: Spent 492.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-23 20:03:24,891 WARN L193 SmtUtils]: Spent 500.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 155 [2020-10-23 20:03:24,897 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:03:24,926 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:03:25,277 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:03:25,606 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:03:25,985 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:03:26,350 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:03:26,713 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:03:27,083 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:03:27,461 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:03:27,814 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:03:27,817 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:03:30,384 WARN L193 SmtUtils]: Spent 480.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 154 [2020-10-23 20:03:30,389 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:03:31,758 WARN L193 SmtUtils]: Spent 534.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 156 [2020-10-23 20:03:31,763 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:03:34,394 WARN L193 SmtUtils]: Spent 543.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 156 [2020-10-23 20:03:36,960 WARN L193 SmtUtils]: Spent 477.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 154 [2020-10-23 20:03:36,965 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:03:38,609 WARN L193 SmtUtils]: Spent 527.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 156 [2020-10-23 20:03:38,613 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:03:41,175 WARN L193 SmtUtils]: Spent 501.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 154 [2020-10-23 20:03:41,180 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:03:42,627 WARN L193 SmtUtils]: Spent 552.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 156 [2020-10-23 20:03:42,632 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:03:45,316 WARN L193 SmtUtils]: Spent 564.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 154 [2020-10-23 20:03:45,325 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:03:45,731 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:03:46,106 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 105 [2020-10-23 20:03:46,483 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:03:46,845 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:03:47,200 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 105 [2020-10-23 20:03:47,542 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 105 [2020-10-23 20:03:47,917 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:03:48,294 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 105 [2020-10-23 20:03:48,298 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:03:50,133 WARN L193 SmtUtils]: Spent 453.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 151 [2020-10-23 20:03:52,669 WARN L193 SmtUtils]: Spent 448.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 148 [2020-10-23 20:03:52,673 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:03:54,558 WARN L193 SmtUtils]: Spent 608.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 151 [2020-10-23 20:03:54,563 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:03:56,041 WARN L193 SmtUtils]: Spent 528.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 150 [2020-10-23 20:03:58,601 WARN L193 SmtUtils]: Spent 492.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 149 [2020-10-23 20:03:58,606 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:04:01,133 WARN L193 SmtUtils]: Spent 457.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 151 [2020-10-23 20:04:01,137 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:04:03,628 WARN L193 SmtUtils]: Spent 416.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 149 [2020-10-23 20:04:06,119 WARN L193 SmtUtils]: Spent 427.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 149 [2020-10-23 20:04:06,124 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:04:06,127 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:04:08,692 WARN L193 SmtUtils]: Spent 461.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-23 20:04:11,255 WARN L193 SmtUtils]: Spent 470.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-23 20:04:11,258 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:04:13,823 WARN L193 SmtUtils]: Spent 514.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-23 20:04:13,827 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:04:16,369 WARN L193 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 151 [2020-10-23 20:04:18,973 WARN L193 SmtUtils]: Spent 504.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-23 20:04:21,558 WARN L193 SmtUtils]: Spent 501.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 151 [2020-10-23 20:04:21,562 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:04:24,126 WARN L193 SmtUtils]: Spent 477.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 151 [2020-10-23 20:04:24,130 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:04:26,745 WARN L193 SmtUtils]: Spent 533.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 151 [2020-10-23 20:04:26,751 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:04:26,755 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:04:29,306 WARN L193 SmtUtils]: Spent 488.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 148 [2020-10-23 20:04:29,311 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:04:31,550 WARN L193 SmtUtils]: Spent 541.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 151 [2020-10-23 20:04:31,554 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:04:34,157 WARN L193 SmtUtils]: Spent 538.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 151 [2020-10-23 20:04:34,159 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:04:36,476 WARN L193 SmtUtils]: Spent 525.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 151 [2020-10-23 20:04:36,483 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:04:39,048 WARN L193 SmtUtils]: Spent 475.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 149 [2020-10-23 20:04:41,020 WARN L193 SmtUtils]: Spent 481.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 150 [2020-10-23 20:04:41,025 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:04:43,504 WARN L193 SmtUtils]: Spent 431.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 149 [2020-10-23 20:04:43,507 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:04:46,047 WARN L193 SmtUtils]: Spent 469.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 149 [2020-10-23 20:04:46,052 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:04:46,055 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:04:48,628 WARN L193 SmtUtils]: Spent 521.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 150 [2020-10-23 20:04:48,632 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:04:51,263 WARN L193 SmtUtils]: Spent 578.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 152 [2020-10-23 20:04:53,836 WARN L193 SmtUtils]: Spent 510.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 150 [2020-10-23 20:04:53,840 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:04:56,178 WARN L193 SmtUtils]: Spent 600.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 152 [2020-10-23 20:04:56,182 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:04:58,793 WARN L193 SmtUtils]: Spent 543.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 150 [2020-10-23 20:04:58,798 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:05:01,466 WARN L193 SmtUtils]: Spent 589.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 152 [2020-10-23 20:05:04,108 WARN L193 SmtUtils]: Spent 573.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 152 [2020-10-23 20:05:04,112 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:05:06,726 WARN L193 SmtUtils]: Spent 539.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 150 [2020-10-23 20:05:06,730 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:05:06,734 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:05:07,123 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:05:07,491 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:05:07,827 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:05:08,179 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:05:08,519 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:05:08,857 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:05:09,190 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:05:09,518 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:05:09,520 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:05:09,847 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 101 [2020-10-23 20:05:10,152 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 102 [2020-10-23 20:05:10,450 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 20:05:10,771 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 101 [2020-10-23 20:05:11,103 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 20:05:11,428 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 102 [2020-10-23 20:05:11,757 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 20:05:12,094 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 101 [2020-10-23 20:05:12,096 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:05:12,426 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 20:05:12,758 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 102 [2020-10-23 20:05:13,086 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 101 [2020-10-23 20:05:13,413 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 20:05:13,745 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 102 [2020-10-23 20:05:14,086 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 101 [2020-10-23 20:05:14,398 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 20:05:14,724 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 101 [2020-10-23 20:05:14,729 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:05:15,064 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 101 [2020-10-23 20:05:15,402 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 20:05:15,726 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 20:05:16,056 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 101 [2020-10-23 20:05:16,392 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 20:05:16,715 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 101 [2020-10-23 20:05:17,043 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 20:05:17,370 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 20:05:17,372 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:05:17,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:05:17,735 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:05:17,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:05:17,950 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:05:18,192 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 20:05:18,192 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 20:05:18,193 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-23 20:05:18,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 08:05:18 BoogieIcfgContainer [2020-10-23 20:05:18,220 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 20:05:18,222 INFO L168 Benchmark]: Toolchain (without parser) took 206309.06 ms. Allocated memory was 162.5 MB in the beginning and 489.7 MB in the end (delta: 327.2 MB). Free memory was 138.9 MB in the beginning and 231.7 MB in the end (delta: -92.9 MB). Peak memory consumption was 234.7 MB. Max. memory is 8.0 GB. [2020-10-23 20:05:18,223 INFO L168 Benchmark]: CDTParser took 0.39 ms. Allocated memory is still 162.5 MB. Free memory was 135.3 MB in the beginning and 135.1 MB in the end (delta: 136.4 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 20:05:18,227 INFO L168 Benchmark]: CACSL2BoogieTranslator took 701.72 ms. Allocated memory is still 162.5 MB. Free memory was 138.2 MB in the beginning and 117.7 MB in the end (delta: 20.6 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-10-23 20:05:18,230 INFO L168 Benchmark]: Boogie Preprocessor took 115.15 ms. Allocated memory is still 162.5 MB. Free memory was 117.7 MB in the beginning and 113.9 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-23 20:05:18,231 INFO L168 Benchmark]: RCFGBuilder took 1999.44 ms. Allocated memory is still 162.5 MB. Free memory was 113.7 MB in the beginning and 103.5 MB in the end (delta: 10.2 MB). Peak memory consumption was 26.9 MB. Max. memory is 8.0 GB. [2020-10-23 20:05:18,232 INFO L168 Benchmark]: TraceAbstraction took 203471.37 ms. Allocated memory was 162.5 MB in the beginning and 489.7 MB in the end (delta: 327.2 MB). Free memory was 103.0 MB in the beginning and 231.7 MB in the end (delta: -128.8 MB). Peak memory consumption was 198.4 MB. Max. memory is 8.0 GB. [2020-10-23 20:05:18,238 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 ms. Allocated memory is still 162.5 MB. Free memory was 135.3 MB in the beginning and 135.1 MB in the end (delta: 136.4 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 701.72 ms. Allocated memory is still 162.5 MB. Free memory was 138.2 MB in the beginning and 117.7 MB in the end (delta: 20.6 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 115.15 ms. Allocated memory is still 162.5 MB. Free memory was 117.7 MB in the beginning and 113.9 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1999.44 ms. Allocated memory is still 162.5 MB. Free memory was 113.7 MB in the beginning and 103.5 MB in the end (delta: 10.2 MB). Peak memory consumption was 26.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 203471.37 ms. Allocated memory was 162.5 MB in the beginning and 489.7 MB in the end (delta: 327.2 MB). Free memory was 103.0 MB in the beginning and 231.7 MB in the end (delta: -128.8 MB). Peak memory consumption was 198.4 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: [L48] int waterLevel = 1; [L49] int methaneLevelCritical = 0; [L232] int pumpRunning = 0; [L233] int systemActive = 1; [L418] int cleanupTimeShifts = 4; [L683] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L491] int retValue_acc ; [L492] int tmp ; [L496] FCALL select_helpers() [L497] FCALL select_features() [L498] CALL, EXPR valid_product() [L409] int retValue_acc ; [L412] retValue_acc = 1 [L413] return (retValue_acc); [L498] RET, EXPR valid_product() [L498] tmp = valid_product() [L500] COND TRUE \read(tmp) [L502] FCALL setup() [L503] CALL runTest() [L485] CALL test() [L161] int splverifierCounter ; [L162] int tmp ; [L163] int tmp___0 ; [L164] int tmp___1 ; [L165] int tmp___2 ; [L168] splverifierCounter = 0 [L170] COND TRUE 1 [L172] COND TRUE splverifierCounter < 4 [L178] tmp = __VERIFIER_nondet_int() [L180] COND TRUE \read(tmp) [L182] CALL waterRise() [L66] COND TRUE waterLevel < 2 [L67] waterLevel = waterLevel + 1 [L182] RET waterRise() [L188] tmp___0 = __VERIFIER_nondet_int() [L190] COND FALSE !(\read(tmp___0)) [L198] tmp___2 = __VERIFIER_nondet_int() [L200] COND TRUE \read(tmp___2) [L202] CALL startSystem() [L375] systemActive = 1 [L202] RET startSystem() [L217] CALL timeShift() [L239] COND FALSE !(\read(pumpRunning)) [L246] COND TRUE \read(systemActive) [L248] FCALL processEnvironment() [L254] CALL __utac_acc__Specification4_spec__1() [L131] int tmp ; [L132] int tmp___0 ; [L136] CALL, EXPR getWaterLevel() [L119] int retValue_acc ; [L122] retValue_acc = waterLevel [L123] return (retValue_acc); [L136] RET, EXPR getWaterLevel() [L136] tmp = getWaterLevel() [L138] COND FALSE !(tmp == 0) [L254] RET __utac_acc__Specification4_spec__1() [L217] RET timeShift() [L170] COND TRUE 1 [L172] COND TRUE splverifierCounter < 4 [L178] tmp = __VERIFIER_nondet_int() [L180] COND TRUE \read(tmp) [L182] CALL waterRise() [L66] COND TRUE waterLevel < 2 [L67] waterLevel = waterLevel + 1 [L182] RET waterRise() [L188] tmp___0 = __VERIFIER_nondet_int() [L190] COND FALSE !(\read(tmp___0)) [L198] tmp___2 = __VERIFIER_nondet_int() [L200] COND TRUE \read(tmp___2) [L202] CALL startSystem() [L375] systemActive = 1 [L202] RET startSystem() [L217] CALL timeShift() [L239] COND FALSE !(\read(pumpRunning)) [L246] COND TRUE \read(systemActive) [L248] FCALL processEnvironment() [L254] CALL __utac_acc__Specification4_spec__1() [L131] int tmp ; [L132] int tmp___0 ; [L136] CALL, EXPR getWaterLevel() [L119] int retValue_acc ; [L122] retValue_acc = waterLevel [L123] return (retValue_acc); [L136] RET, EXPR getWaterLevel() [L136] tmp = getWaterLevel() [L138] COND TRUE tmp == 0 [L140] CALL, EXPR isPumpRunning() [L312] int retValue_acc ; [L315] retValue_acc = pumpRunning [L316] return (retValue_acc); [L140] RET, EXPR isPumpRunning() [L140] tmp___0 = isPumpRunning() [L142] COND TRUE \read(tmp___0) [L144] CALL __automaton_fail() [L884] CALL reach_error() [L3] __assert_fail("0", "minepump_spec4_product12.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 604 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 203.3s, OverallIterations: 6, TraceHistogramMax: 2, AutomataDifference: 25.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 963 SDtfs, 1507 SDslu, 2197 SDs, 0 SdLazy, 3224 SolverSat, 487 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 162 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 267 ImplicationChecksByTransitivity, 14.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=691occurred 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: 1.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 378 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...