/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_product07.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 19:59:20,836 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 19:59:20,839 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 19:59:20,873 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 19:59:20,874 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 19:59:20,875 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 19:59:20,877 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 19:59:20,880 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 19:59:20,893 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 19:59:20,894 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 19:59:20,895 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 19:59:20,896 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 19:59:20,897 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 19:59:20,898 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 19:59:20,900 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 19:59:20,901 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 19:59:20,902 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 19:59:20,903 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 19:59:20,905 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 19:59:20,907 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 19:59:20,909 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 19:59:20,912 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 19:59:20,914 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 19:59:20,915 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 19:59:20,918 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 19:59:20,918 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 19:59:20,919 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 19:59:20,920 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 19:59:20,920 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 19:59:20,921 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 19:59:20,922 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 19:59:20,923 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 19:59:20,923 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 19:59:20,924 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 19:59:20,925 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 19:59:20,926 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 19:59:20,927 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 19:59:20,927 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 19:59:20,927 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 19:59:20,928 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 19:59:20,929 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 19:59:20,930 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 19:59:20,942 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 19:59:20,943 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 19:59:20,944 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 19:59:20,944 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 19:59:20,945 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 19:59:20,945 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 19:59:20,945 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 19:59:20,945 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 19:59:20,946 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 19:59:20,946 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 19:59:20,946 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 19:59:20,946 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 19:59:20,946 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 19:59:20,947 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 19:59:20,947 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 19:59:20,947 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 19:59:20,947 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 19:59:20,947 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 19:59:20,948 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 19:59:20,948 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 19:59:20,948 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 19:59:20,948 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 19:59:20,948 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 19:59:21,346 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 19:59:21,373 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 19:59:21,376 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 19:59:21,377 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 19:59:21,378 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 19:59:21,379 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product07.cil.c [2020-10-23 19:59:21,445 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be0fb7a4a/cd0099222c854ce88c5f095dfdac3bb8/FLAGce4568183 [2020-10-23 19:59:22,049 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 19:59:22,050 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product07.cil.c [2020-10-23 19:59:22,063 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be0fb7a4a/cd0099222c854ce88c5f095dfdac3bb8/FLAGce4568183 [2020-10-23 19:59:22,399 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be0fb7a4a/cd0099222c854ce88c5f095dfdac3bb8 [2020-10-23 19:59:22,403 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 19:59:22,411 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 19:59:22,417 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 19:59:22,417 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 19:59:22,421 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 19:59:22,422 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 07:59:22" (1/1) ... [2020-10-23 19:59:22,427 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4043caff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:59:22, skipping insertion in model container [2020-10-23 19:59:22,427 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 07:59:22" (1/1) ... [2020-10-23 19:59:22,436 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 19:59:22,508 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 19:59:22,828 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 19:59:22,841 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 19:59:22,934 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 19:59:22,970 INFO L208 MainTranslator]: Completed translation [2020-10-23 19:59:22,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:59:22 WrapperNode [2020-10-23 19:59:22,970 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 19:59:22,972 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 19:59:22,972 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 19:59:22,972 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 19:59:22,985 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:59:22" (1/1) ... [2020-10-23 19:59:22,985 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:59:22" (1/1) ... [2020-10-23 19:59:23,010 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:59:22" (1/1) ... [2020-10-23 19:59:23,011 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:59:22" (1/1) ... [2020-10-23 19:59:23,061 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:59:22" (1/1) ... [2020-10-23 19:59:23,080 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:59:22" (1/1) ... [2020-10-23 19:59:23,090 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:59:22" (1/1) ... [2020-10-23 19:59:23,104 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 19:59:23,105 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 19:59:23,105 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 19:59:23,106 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 19:59:23,107 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:59:22" (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 19:59:23,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 19:59:23,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 19:59:23,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 19:59:23,194 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 19:59:23,194 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 19:59:23,194 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 19:59:23,194 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 19:59:23,195 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 19:59:23,195 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 19:59:23,195 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 19:59:23,195 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 19:59:23,195 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 19:59:23,195 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 19:59:23,195 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 19:59:23,196 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 19:59:23,196 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 19:59:23,196 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 19:59:23,196 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 19:59:23,196 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 19:59:23,196 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 19:59:23,196 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-10-23 19:59:23,197 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 19:59:23,197 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 19:59:23,197 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 19:59:23,197 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 19:59:23,197 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 19:59:23,197 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 19:59:23,197 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 19:59:23,198 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 19:59:23,198 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-23 19:59:23,198 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 19:59:23,198 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 19:59:23,198 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 19:59:23,198 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 19:59:23,199 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 19:59:23,199 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 19:59:23,199 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-23 19:59:23,199 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 19:59:23,199 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 19:59:23,199 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 19:59:23,200 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 19:59:23,200 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 19:59:23,200 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 19:59:23,200 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 19:59:23,200 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 19:59:23,200 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 19:59:23,200 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 19:59:23,201 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 19:59:23,201 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 19:59:23,201 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 19:59:23,201 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 19:59:23,201 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 19:59:23,201 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 19:59:23,201 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 19:59:23,202 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 19:59:23,202 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 19:59:23,202 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 19:59:23,202 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 19:59:23,202 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 19:59:23,202 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 19:59:23,202 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 19:59:23,203 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 19:59:23,203 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 19:59:23,203 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-10-23 19:59:23,203 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 19:59:23,203 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 19:59:23,203 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 19:59:23,204 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 19:59:23,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 19:59:23,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 19:59:23,204 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 19:59:23,204 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 19:59:23,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 19:59:23,205 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 19:59:23,205 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 19:59:23,205 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 19:59:23,205 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 19:59:23,205 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 19:59:23,205 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 19:59:23,206 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-23 19:59:23,206 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 19:59:23,206 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 19:59:23,206 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 19:59:23,206 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-23 19:59:23,206 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 19:59:23,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 19:59:23,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 19:59:23,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 19:59:24,491 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 19:59:24,491 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 19:59:24,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 07:59:24 BoogieIcfgContainer [2020-10-23 19:59:24,494 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 19:59:24,496 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 19:59:24,496 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 19:59:24,499 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 19:59:24,500 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 07:59:22" (1/3) ... [2020-10-23 19:59:24,501 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3931b8f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 07:59:24, skipping insertion in model container [2020-10-23 19:59:24,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:59:22" (2/3) ... [2020-10-23 19:59:24,501 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3931b8f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 07:59:24, skipping insertion in model container [2020-10-23 19:59:24,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 07:59:24" (3/3) ... [2020-10-23 19:59:24,503 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product07.cil.c [2020-10-23 19:59:24,516 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 19:59:24,522 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 19:59:24,535 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 19:59:24,559 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 19:59:24,559 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 19:59:24,559 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 19:59:24,559 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 19:59:24,560 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 19:59:24,560 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 19:59:24,560 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 19:59:24,560 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 19:59:24,582 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states. [2020-10-23 19:59:24,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-23 19:59:24,603 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:59:24,604 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 19:59:24,605 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 19:59:24,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:59:24,611 INFO L82 PathProgramCache]: Analyzing trace with hash 1175576670, now seen corresponding path program 1 times [2020-10-23 19:59:24,620 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:59:24,621 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [617361143] [2020-10-23 19:59:24,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:59:24,706 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:59:24,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:25,456 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:59:25,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:59:25,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:25,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:59:25,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:25,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:59:25,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:25,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:59:25,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:25,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:59:25,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:25,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 19:59:25,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:25,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 19:59:25,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:25,639 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 19:59:25,641 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [617361143] [2020-10-23 19:59:25,643 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:59:25,644 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 19:59:25,644 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774105726] [2020-10-23 19:59:25,650 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 19:59:25,650 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:59:25,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 19:59:25,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 19:59:25,668 INFO L87 Difference]: Start difference. First operand 284 states. Second operand 3 states. [2020-10-23 19:59:27,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:59:27,246 INFO L93 Difference]: Finished difference Result 425 states and 509 transitions. [2020-10-23 19:59:27,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 19:59:27,252 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 148 [2020-10-23 19:59:27,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:59:27,269 INFO L225 Difference]: With dead ends: 425 [2020-10-23 19:59:27,269 INFO L226 Difference]: Without dead ends: 271 [2020-10-23 19:59:27,274 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 19:59:27,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2020-10-23 19:59:27,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 230. [2020-10-23 19:59:27,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-10-23 19:59:27,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 248 transitions. [2020-10-23 19:59:27,415 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 248 transitions. Word has length 148 [2020-10-23 19:59:27,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:59:27,416 INFO L481 AbstractCegarLoop]: Abstraction has 230 states and 248 transitions. [2020-10-23 19:59:27,416 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 19:59:27,416 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 248 transitions. [2020-10-23 19:59:27,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-23 19:59:27,421 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:59:27,421 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 19:59:27,422 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 19:59:27,422 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 19:59:27,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:59:27,423 INFO L82 PathProgramCache]: Analyzing trace with hash -278743916, now seen corresponding path program 1 times [2020-10-23 19:59:27,423 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:59:27,424 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1897167937] [2020-10-23 19:59:27,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:59:27,428 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:59:27,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:27,964 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:59:27,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:59:27,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:28,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:59:28,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:28,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:59:28,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:28,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:59:28,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:28,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:59:28,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:28,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 19:59:28,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:28,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 19:59:28,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:28,108 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 19:59:28,109 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1897167937] [2020-10-23 19:59:28,110 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:59:28,110 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 19:59:28,110 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228825299] [2020-10-23 19:59:28,113 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 19:59:28,114 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:59:28,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 19:59:28,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 19:59:28,115 INFO L87 Difference]: Start difference. First operand 230 states and 248 transitions. Second operand 4 states. [2020-10-23 19:59:28,968 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:59:29,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:59:29,879 INFO L93 Difference]: Finished difference Result 333 states and 372 transitions. [2020-10-23 19:59:29,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 19:59:29,880 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 149 [2020-10-23 19:59:29,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:59:29,884 INFO L225 Difference]: With dead ends: 333 [2020-10-23 19:59:29,885 INFO L226 Difference]: Without dead ends: 254 [2020-10-23 19:59:29,887 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-23 19:59:29,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2020-10-23 19:59:30,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 220. [2020-10-23 19:59:30,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2020-10-23 19:59:30,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 235 transitions. [2020-10-23 19:59:30,023 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 235 transitions. Word has length 149 [2020-10-23 19:59:30,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:59:30,026 INFO L481 AbstractCegarLoop]: Abstraction has 220 states and 235 transitions. [2020-10-23 19:59:30,026 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 19:59:30,027 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 235 transitions. [2020-10-23 19:59:30,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-10-23 19:59:30,034 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:59:30,034 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:59:30,034 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 19:59:30,035 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 19:59:30,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:59:30,036 INFO L82 PathProgramCache]: Analyzing trace with hash -316093318, now seen corresponding path program 1 times [2020-10-23 19:59:30,036 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:59:30,036 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [561968566] [2020-10-23 19:59:30,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:59:30,041 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:59:30,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:30,607 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:59:30,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:59:30,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:30,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:59:30,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:30,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:59:30,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:30,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:59:30,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:30,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:59:30,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:30,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 19:59:30,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:30,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-23 19:59:30,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:30,816 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 19:59:30,818 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [561968566] [2020-10-23 19:59:30,818 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:59:30,818 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-23 19:59:30,818 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171008242] [2020-10-23 19:59:30,819 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 19:59:30,820 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:59:30,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 19:59:30,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-23 19:59:30,821 INFO L87 Difference]: Start difference. First operand 220 states and 235 transitions. Second operand 9 states. [2020-10-23 19:59:31,481 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:59:31,984 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:59:32,362 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:59:32,743 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:59:33,125 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:59:33,482 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:59:34,675 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:59:36,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:59:36,514 INFO L93 Difference]: Finished difference Result 558 states and 641 transitions. [2020-10-23 19:59:36,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-23 19:59:36,515 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 158 [2020-10-23 19:59:36,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:59:36,520 INFO L225 Difference]: With dead ends: 558 [2020-10-23 19:59:36,521 INFO L226 Difference]: Without dead ends: 453 [2020-10-23 19:59:36,522 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-10-23 19:59:36,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2020-10-23 19:59:36,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 388. [2020-10-23 19:59:36,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 388 states. [2020-10-23 19:59:36,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 432 transitions. [2020-10-23 19:59:36,677 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 432 transitions. Word has length 158 [2020-10-23 19:59:36,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:59:36,678 INFO L481 AbstractCegarLoop]: Abstraction has 388 states and 432 transitions. [2020-10-23 19:59:36,678 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 19:59:36,678 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 432 transitions. [2020-10-23 19:59:36,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-10-23 19:59:36,681 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:59:36,681 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] [2020-10-23 19:59:36,681 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 19:59:36,682 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 19:59:36,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:59:36,682 INFO L82 PathProgramCache]: Analyzing trace with hash 2032927913, now seen corresponding path program 1 times [2020-10-23 19:59:36,683 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:59:36,683 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [659738135] [2020-10-23 19:59:36,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:59:36,687 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:59:36,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:37,152 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:59:37,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:59:37,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:37,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:59:37,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:37,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:59:37,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:37,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:59:37,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:37,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:59:37,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:37,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-23 19:59:37,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:37,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:59:37,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:37,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-23 19:59:37,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:37,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-23 19:59:37,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:37,367 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 19:59:37,368 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [659738135] [2020-10-23 19:59:37,368 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:59:37,368 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-23 19:59:37,369 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448609252] [2020-10-23 19:59:37,369 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-23 19:59:37,369 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:59:37,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-23 19:59:37,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2020-10-23 19:59:37,370 INFO L87 Difference]: Start difference. First operand 388 states and 432 transitions. Second operand 14 states. [2020-10-23 19:59:38,080 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:59:38,600 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:59:38,986 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:59:39,390 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:59:39,785 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:59:40,154 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:59:41,028 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:59:42,378 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:59:42,797 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:59:43,301 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:59:43,745 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:59:44,121 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 19:59:44,504 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:59:44,877 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:59:45,247 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:59:45,630 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:59:46,146 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:59:46,615 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 19:59:47,025 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:59:47,397 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:59:49,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:59:49,131 INFO L93 Difference]: Finished difference Result 1415 states and 1808 transitions. [2020-10-23 19:59:49,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-23 19:59:49,132 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 166 [2020-10-23 19:59:49,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:59:49,142 INFO L225 Difference]: With dead ends: 1415 [2020-10-23 19:59:49,143 INFO L226 Difference]: Without dead ends: 1142 [2020-10-23 19:59:49,145 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 7.8s TimeCoverageRelationStatistics Valid=252, Invalid=1008, Unknown=0, NotChecked=0, Total=1260 [2020-10-23 19:59:49,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1142 states. [2020-10-23 19:59:49,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1142 to 869. [2020-10-23 19:59:49,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 869 states. [2020-10-23 19:59:49,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 869 states to 869 states and 1005 transitions. [2020-10-23 19:59:49,621 INFO L78 Accepts]: Start accepts. Automaton has 869 states and 1005 transitions. Word has length 166 [2020-10-23 19:59:49,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:59:49,623 INFO L481 AbstractCegarLoop]: Abstraction has 869 states and 1005 transitions. [2020-10-23 19:59:49,623 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-23 19:59:49,623 INFO L276 IsEmpty]: Start isEmpty. Operand 869 states and 1005 transitions. [2020-10-23 19:59:49,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-10-23 19:59:49,627 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:59:49,628 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:59:49,628 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 19:59:49,629 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 19:59:49,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:59:49,629 INFO L82 PathProgramCache]: Analyzing trace with hash 782537191, now seen corresponding path program 1 times [2020-10-23 19:59:49,631 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:59:49,631 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [349245784] [2020-10-23 19:59:49,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:59:49,636 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:59:49,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:50,069 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:59:50,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:59:50,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:50,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:59:50,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:50,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:59:50,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:50,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:59:50,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:50,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:59:50,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:50,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-23 19:59:50,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:50,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 19:59:50,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:50,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-23 19:59:50,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:50,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:59:50,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:50,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-23 19:59:50,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:50,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-10-23 19:59:50,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:50,193 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 19:59:50,194 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [349245784] [2020-10-23 19:59:50,194 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:59:50,194 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 19:59:50,194 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000694580] [2020-10-23 19:59:50,195 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-23 19:59:50,195 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:59:50,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-23 19:59:50,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-23 19:59:50,196 INFO L87 Difference]: Start difference. First operand 869 states and 1005 transitions. Second operand 6 states. [2020-10-23 19:59:50,818 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:59:51,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:59:51,854 INFO L93 Difference]: Finished difference Result 1432 states and 1708 transitions. [2020-10-23 19:59:51,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-23 19:59:51,855 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 176 [2020-10-23 19:59:51,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:59:51,859 INFO L225 Difference]: With dead ends: 1432 [2020-10-23 19:59:51,859 INFO L226 Difference]: Without dead ends: 678 [2020-10-23 19:59:51,863 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-10-23 19:59:51,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2020-10-23 19:59:52,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 644. [2020-10-23 19:59:52,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 644 states. [2020-10-23 19:59:52,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 703 transitions. [2020-10-23 19:59:52,167 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 703 transitions. Word has length 176 [2020-10-23 19:59:52,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:59:52,168 INFO L481 AbstractCegarLoop]: Abstraction has 644 states and 703 transitions. [2020-10-23 19:59:52,168 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-23 19:59:52,168 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 703 transitions. [2020-10-23 19:59:52,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-10-23 19:59:52,175 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:59:52,176 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:59:52,176 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 19:59:52,177 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 19:59:52,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:59:52,178 INFO L82 PathProgramCache]: Analyzing trace with hash -1294373954, now seen corresponding path program 1 times [2020-10-23 19:59:52,178 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:59:52,179 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2009307894] [2020-10-23 19:59:52,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:59:52,330 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 19:59:52,598 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 19:59:52,824 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 19:59:53,052 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-10-23 19:59:53,291 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 19:59:53,544 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-10-23 19:59:53,790 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 19:59:54,044 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 19:59:54,291 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 19:59:54,536 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 19:59:54,763 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 19:59:54,990 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 19:59:55,216 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-10-23 19:59:55,473 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 19:59:58,435 WARN L193 SmtUtils]: Spent 637.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:00:00,947 WARN L193 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:00:00,958 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:03,626 WARN L193 SmtUtils]: Spent 506.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 166 [2020-10-23 20:00:04,779 WARN L193 SmtUtils]: Spent 489.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:00:04,791 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:07,337 WARN L193 SmtUtils]: Spent 425.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:00:07,342 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:08,445 WARN L193 SmtUtils]: Spent 466.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:00:08,450 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:10,934 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:00:10,940 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:13,436 WARN L193 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 164 [2020-10-23 20:00:13,441 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:13,446 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:00:15,987 WARN L193 SmtUtils]: Spent 451.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:00:15,992 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:18,542 WARN L193 SmtUtils]: Spent 445.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 166 [2020-10-23 20:00:18,547 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:21,063 WARN L193 SmtUtils]: Spent 432.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:00:21,068 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:23,631 WARN L193 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:00:23,636 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:26,170 WARN L193 SmtUtils]: Spent 457.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:00:28,645 WARN L193 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 166 [2020-10-23 20:00:28,649 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:31,124 WARN L193 SmtUtils]: Spent 424.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 166 [2020-10-23 20:00:31,129 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:33,662 WARN L193 SmtUtils]: Spent 458.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 166 [2020-10-23 20:00:33,665 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:33,670 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:00:36,097 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 164 [2020-10-23 20:00:36,100 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:38,576 WARN L193 SmtUtils]: Spent 416.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:00:38,580 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:41,053 WARN L193 SmtUtils]: Spent 418.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:00:43,534 WARN L193 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:00:43,539 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:46,064 WARN L193 SmtUtils]: Spent 450.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 166 [2020-10-23 20:00:46,068 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:47,241 WARN L193 SmtUtils]: Spent 449.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:00:47,246 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:49,809 WARN L193 SmtUtils]: Spent 443.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:00:49,814 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:52,377 WARN L193 SmtUtils]: Spent 457.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:00:52,380 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:52,385 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:00:52,749 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:00:53,131 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:00:53,499 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:00:53,866 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:00:54,237 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:00:54,619 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:00:54,985 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:00:55,353 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:00:55,356 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:00:57,904 WARN L193 SmtUtils]: Spent 491.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:01:00,488 WARN L193 SmtUtils]: Spent 499.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:01:03,106 WARN L193 SmtUtils]: Spent 508.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:01:03,109 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:05,634 WARN L193 SmtUtils]: Spent 469.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:01:05,639 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:06,984 WARN L193 SmtUtils]: Spent 516.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:01:06,989 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:09,561 WARN L193 SmtUtils]: Spent 491.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:01:09,566 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:12,286 WARN L193 SmtUtils]: Spent 610.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:01:12,291 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:14,901 WARN L193 SmtUtils]: Spent 523.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:01:14,905 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:14,909 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:01:15,288 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:01:15,658 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:01:16,037 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:01:16,407 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:01:16,788 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:01:17,174 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:01:17,558 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:01:17,938 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:01:17,940 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:01:20,594 WARN L193 SmtUtils]: Spent 546.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:01:20,598 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:23,232 WARN L193 SmtUtils]: Spent 523.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:01:23,237 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:25,848 WARN L193 SmtUtils]: Spent 543.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:01:25,852 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:28,416 WARN L193 SmtUtils]: Spent 509.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:01:28,419 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:30,332 WARN L193 SmtUtils]: Spent 544.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:01:30,336 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:32,941 WARN L193 SmtUtils]: Spent 548.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:01:32,946 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:35,559 WARN L193 SmtUtils]: Spent 503.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:01:38,180 WARN L193 SmtUtils]: Spent 534.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:01:38,185 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:38,190 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:01:40,867 WARN L193 SmtUtils]: Spent 570.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:01:40,872 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:43,499 WARN L193 SmtUtils]: Spent 547.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:01:43,504 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:45,818 WARN L193 SmtUtils]: Spent 605.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:01:45,823 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:48,396 WARN L193 SmtUtils]: Spent 514.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:01:48,400 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:51,364 WARN L193 SmtUtils]: Spent 561.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:01:51,368 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:54,059 WARN L193 SmtUtils]: Spent 621.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:01:54,064 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:56,767 WARN L193 SmtUtils]: Spent 612.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:01:59,433 WARN L193 SmtUtils]: Spent 581.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:01:59,436 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:59,441 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:02:02,153 WARN L193 SmtUtils]: Spent 646.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:02:02,157 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:02:04,800 WARN L193 SmtUtils]: Spent 579.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:02:04,803 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:02:07,507 WARN L193 SmtUtils]: Spent 607.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:02:07,510 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:02:10,170 WARN L193 SmtUtils]: Spent 594.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:02:10,174 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:02:12,845 WARN L193 SmtUtils]: Spent 561.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:02:12,848 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:02:15,213 WARN L193 SmtUtils]: Spent 653.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:02:17,541 WARN L193 SmtUtils]: Spent 648.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:02:17,544 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:02:20,210 WARN L193 SmtUtils]: Spent 604.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:02:20,216 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:02:20,616 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 114 [2020-10-23 20:02:21,032 WARN L193 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 114 [2020-10-23 20:02:21,448 WARN L193 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 113 [2020-10-23 20:02:21,852 WARN L193 SmtUtils]: Spent 391.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:02:22,236 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:02:22,645 WARN L193 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:02:23,035 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:02:23,452 WARN L193 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 113 [2020-10-23 20:02:23,454 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:02:23,849 WARN L193 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:02:24,250 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:02:24,659 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:02:25,064 WARN L193 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:02:25,478 WARN L193 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:02:25,902 WARN L193 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:02:26,319 WARN L193 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:02:26,731 WARN L193 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:02:26,733 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:02:27,113 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 114 [2020-10-23 20:02:27,509 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 113 [2020-10-23 20:02:27,912 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 113 [2020-10-23 20:02:28,314 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:02:28,725 WARN L193 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:02:29,142 WARN L193 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:02:29,536 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 114 [2020-10-23 20:02:29,935 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:02:29,937 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:02:30,358 WARN L193 SmtUtils]: Spent 407.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:02:30,776 WARN L193 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:02:31,196 WARN L193 SmtUtils]: Spent 407.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:02:31,617 WARN L193 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:02:32,038 WARN L193 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:02:32,455 WARN L193 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:02:32,897 WARN L193 SmtUtils]: Spent 424.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:02:33,337 WARN L193 SmtUtils]: Spent 425.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:02:33,339 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:02:36,001 WARN L193 SmtUtils]: Spent 607.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 166 [2020-10-23 20:02:38,717 WARN L193 SmtUtils]: Spent 645.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:02:38,720 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:02:41,412 WARN L193 SmtUtils]: Spent 625.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:02:44,135 WARN L193 SmtUtils]: Spent 649.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:02:46,837 WARN L193 SmtUtils]: Spent 638.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 166 [2020-10-23 20:02:46,841 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:02:49,525 WARN L193 SmtUtils]: Spent 624.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 166 [2020-10-23 20:02:52,231 WARN L193 SmtUtils]: Spent 645.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 166 [2020-10-23 20:02:52,235 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:02:55,010 WARN L193 SmtUtils]: Spent 706.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:02:55,017 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:02:55,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:02:55,870 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:02:56,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:02:56,283 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:02:56,478 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 20:02:56,479 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 20:02:56,480 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-23 20:02:56,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 08:02:56 BoogieIcfgContainer [2020-10-23 20:02:56,519 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 20:02:56,521 INFO L168 Benchmark]: Toolchain (without parser) took 214114.00 ms. Allocated memory was 151.0 MB in the beginning and 615.5 MB in the end (delta: 464.5 MB). Free memory was 125.1 MB in the beginning and 347.2 MB in the end (delta: -222.1 MB). Peak memory consumption was 244.3 MB. Max. memory is 8.0 GB. [2020-10-23 20:02:56,521 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 151.0 MB. Free memory is still 124.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 20:02:56,522 INFO L168 Benchmark]: CACSL2BoogieTranslator took 553.63 ms. Allocated memory is still 151.0 MB. Free memory was 124.5 MB in the beginning and 104.7 MB in the end (delta: 19.8 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-10-23 20:02:56,522 INFO L168 Benchmark]: Boogie Preprocessor took 132.91 ms. Allocated memory is still 151.0 MB. Free memory was 104.7 MB in the beginning and 100.8 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-23 20:02:56,523 INFO L168 Benchmark]: RCFGBuilder took 1388.90 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 100.8 MB in the beginning and 117.5 MB in the end (delta: -16.8 MB). Peak memory consumption was 26.2 MB. Max. memory is 8.0 GB. [2020-10-23 20:02:56,524 INFO L168 Benchmark]: TraceAbstraction took 212022.94 ms. Allocated memory was 181.4 MB in the beginning and 615.5 MB in the end (delta: 434.1 MB). Free memory was 117.0 MB in the beginning and 347.2 MB in the end (delta: -230.2 MB). Peak memory consumption was 204.4 MB. Max. memory is 8.0 GB. [2020-10-23 20:02:56,527 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 151.0 MB. Free memory is still 124.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 553.63 ms. Allocated memory is still 151.0 MB. Free memory was 124.5 MB in the beginning and 104.7 MB in the end (delta: 19.8 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 132.91 ms. Allocated memory is still 151.0 MB. Free memory was 104.7 MB in the beginning and 100.8 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1388.90 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 100.8 MB in the beginning and 117.5 MB in the end (delta: -16.8 MB). Peak memory consumption was 26.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 212022.94 ms. Allocated memory was 181.4 MB in the beginning and 615.5 MB in the end (delta: 434.1 MB). Free memory was 117.0 MB in the beginning and 347.2 MB in the end (delta: -230.2 MB). Peak memory consumption was 204.4 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: [L80] int cleanupTimeShifts = 4; [L194] int waterLevel = 1; [L195] int methaneLevelCritical = 0; [L470] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L737] int pumpRunning = 0; [L738] int systemActive = 1; [L158] int retValue_acc ; [L159] int tmp ; [L163] FCALL select_helpers() [L164] FCALL select_features() [L165] CALL, EXPR valid_product() [L71] int retValue_acc ; [L74] retValue_acc = 1 [L75] return (retValue_acc); [L165] RET, EXPR valid_product() [L165] tmp = valid_product() [L167] COND TRUE \read(tmp) [L169] FCALL setup() [L170] CALL runTest() [L152] CALL test() [L669] int splverifierCounter ; [L670] int tmp ; [L671] int tmp___0 ; [L672] int tmp___1 ; [L673] int tmp___2 ; [L676] splverifierCounter = 0 [L678] COND TRUE 1 [L680] COND TRUE splverifierCounter < 4 [L686] tmp = __VERIFIER_nondet_int() [L688] COND TRUE \read(tmp) [L690] CALL waterRise() [L212] COND TRUE waterLevel < 2 [L213] waterLevel = waterLevel + 1 [L690] RET waterRise() [L696] tmp___0 = __VERIFIER_nondet_int() [L698] COND FALSE !(\read(tmp___0)) [L706] tmp___2 = __VERIFIER_nondet_int() [L708] COND FALSE !(\read(tmp___2)) [L712] tmp___1 = __VERIFIER_nondet_int() [L714] COND TRUE \read(tmp___1) [L716] CALL stopSystem() [L873] COND FALSE !(\read(pumpRunning)) [L880] systemActive = 0 [L716] RET stopSystem() [L723] CALL timeShift() [L744] COND FALSE !(\read(pumpRunning)) [L751] COND FALSE !(\read(systemActive)) [L759] CALL __utac_acc__Specification4_spec__1() [L276] int tmp ; [L277] int tmp___0 ; [L281] CALL, EXPR getWaterLevel() [L265] int retValue_acc ; [L268] retValue_acc = waterLevel [L269] return (retValue_acc); [L281] RET, EXPR getWaterLevel() [L281] tmp = getWaterLevel() [L283] COND FALSE !(tmp == 0) [L759] RET __utac_acc__Specification4_spec__1() [L723] RET timeShift() [L678] COND TRUE 1 [L680] COND TRUE splverifierCounter < 4 [L686] tmp = __VERIFIER_nondet_int() [L688] COND TRUE \read(tmp) [L690] CALL waterRise() [L212] COND TRUE waterLevel < 2 [L213] waterLevel = waterLevel + 1 [L690] RET waterRise() [L696] tmp___0 = __VERIFIER_nondet_int() [L698] COND FALSE !(\read(tmp___0)) [L706] tmp___2 = __VERIFIER_nondet_int() [L708] COND TRUE \read(tmp___2) [L723] CALL timeShift() [L744] COND FALSE !(\read(pumpRunning)) [L751] COND FALSE !(\read(systemActive)) [L759] CALL __utac_acc__Specification4_spec__1() [L276] int tmp ; [L277] int tmp___0 ; [L281] CALL, EXPR getWaterLevel() [L265] int retValue_acc ; [L268] retValue_acc = waterLevel [L269] return (retValue_acc); [L281] RET, EXPR getWaterLevel() [L281] tmp = getWaterLevel() [L283] COND TRUE tmp == 0 [L285] CALL, EXPR isPumpRunning() [L825] int retValue_acc ; [L828] retValue_acc = pumpRunning [L829] return (retValue_acc); [L285] RET, EXPR isPumpRunning() [L285] tmp___0 = isPumpRunning() [L287] COND TRUE \read(tmp___0) [L289] CALL __automaton_fail() [L185] CALL reach_error() [L3] __assert_fail("0", "minepump_spec4_product07.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 37 procedures, 603 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 211.9s, OverallIterations: 6, TraceHistogramMax: 2, AutomataDifference: 22.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1020 SDtfs, 1658 SDslu, 1956 SDs, 0 SdLazy, 3629 SolverSat, 553 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 161 GetRequests, 100 SyntacticMatches, 1 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 12.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=869occurred 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, 447 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! Received shutdown request...