/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_spec3_product32.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 16:24:52,070 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 16:24:52,075 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 16:24:52,130 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-23 16:24:52,131 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-23 16:24:52,135 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-23 16:24:52,138 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-23 16:24:52,146 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-23 16:24:52,149 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-23 16:24:52,155 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-23 16:24:52,157 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-23 16:24:52,159 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-23 16:24:52,159 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 16:24:52,162 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 16:24:52,165 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 16:24:52,166 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 16:24:52,171 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 16:24:52,172 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 16:24:52,203 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 16:24:52,212 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 16:24:52,223 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 16:24:52,225 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 16:24:52,229 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 16:24:52,233 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 16:24:52,245 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-23 16:24:52,245 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-23 16:24:52,245 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-23 16:24:52,247 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-23 16:24:52,255 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-23 16:24:52,256 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-23 16:24:52,256 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-23 16:24:52,258 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-23 16:24:52,261 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-23 16:24:52,261 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-23 16:24:52,262 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-23 16:24:52,263 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-23 16:24:52,263 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-23 16:24:52,264 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-23 16:24:52,264 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 16:24:52,265 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 16:24:52,266 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 16:24:52,267 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-23 16:24:52,292 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 16:24:52,293 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 16:24:52,297 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 16:24:52,297 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 16:24:52,297 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 16:24:52,298 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 16:24:52,298 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 16:24:52,298 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 16:24:52,298 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 16:24:52,298 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 16:24:52,300 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 16:24:52,300 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 16:24:52,300 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 16:24:52,301 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 16:24:52,301 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 16:24:52,301 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-23 16:24:52,301 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-23 16:24:52,302 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 16:24:52,302 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 16:24:52,302 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 16:24:52,302 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-23 16:24:52,302 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 16:24:52,303 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-23 16:24:52,695 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 16:24:52,727 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 16:24:52,730 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 16:24:52,732 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 16:24:52,732 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 16:24:52,734 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product32.cil.c [2021-02-23 16:24:52,820 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36b75a760/b184748b0a7a4ac18b0ffc99410c4dea/FLAG78de7cc78 [2021-02-23 16:24:53,570 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 16:24:53,571 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product32.cil.c [2021-02-23 16:24:53,592 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36b75a760/b184748b0a7a4ac18b0ffc99410c4dea/FLAG78de7cc78 [2021-02-23 16:24:53,794 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36b75a760/b184748b0a7a4ac18b0ffc99410c4dea [2021-02-23 16:24:53,797 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 16:24:53,808 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 16:24:53,810 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 16:24:53,810 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 16:24:53,814 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 16:24:53,815 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 04:24:53" (1/1) ... [2021-02-23 16:24:53,816 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2499e17f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:24:53, skipping insertion in model container [2021-02-23 16:24:53,816 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 04:24:53" (1/1) ... [2021-02-23 16:24:53,825 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 16:24:53,866 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 16:24:54,179 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product32.cil.c[14950,14963] [2021-02-23 16:24:54,205 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 16:24:54,217 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 16:24:54,305 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product32.cil.c[14950,14963] [2021-02-23 16:24:54,318 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 16:24:54,358 INFO L208 MainTranslator]: Completed translation [2021-02-23 16:24:54,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:24:54 WrapperNode [2021-02-23 16:24:54,358 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 16:24:54,359 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 16:24:54,360 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 16:24:54,360 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 16:24:54,393 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:24:54" (1/1) ... [2021-02-23 16:24:54,394 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:24:54" (1/1) ... [2021-02-23 16:24:54,448 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:24:54" (1/1) ... [2021-02-23 16:24:54,449 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:24:54" (1/1) ... [2021-02-23 16:24:54,500 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:24:54" (1/1) ... [2021-02-23 16:24:54,512 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:24:54" (1/1) ... [2021-02-23 16:24:54,524 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:24:54" (1/1) ... [2021-02-23 16:24:54,541 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 16:24:54,547 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 16:24:54,548 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 16:24:54,548 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 16:24:54,549 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:24:54" (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 [2021-02-23 16:24:54,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 16:24:54,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 16:24:54,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-02-23 16:24:54,650 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 16:24:54,650 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2021-02-23 16:24:54,650 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2021-02-23 16:24:54,650 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2021-02-23 16:24:54,651 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2021-02-23 16:24:54,651 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2021-02-23 16:24:54,651 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2021-02-23 16:24:54,651 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2021-02-23 16:24:54,651 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-02-23 16:24:54,651 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-02-23 16:24:54,652 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2021-02-23 16:24:54,652 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2021-02-23 16:24:54,652 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2021-02-23 16:24:54,652 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2021-02-23 16:24:54,652 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-02-23 16:24:54,652 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-02-23 16:24:54,652 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-02-23 16:24:54,653 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2021-02-23 16:24:54,653 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2021-02-23 16:24:54,653 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2021-02-23 16:24:54,653 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2021-02-23 16:24:54,653 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-02-23 16:24:54,653 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-02-23 16:24:54,654 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2021-02-23 16:24:54,654 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2021-02-23 16:24:54,654 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2021-02-23 16:24:54,654 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 16:24:54,654 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2021-02-23 16:24:54,654 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-02-23 16:24:54,655 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2021-02-23 16:24:54,655 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2021-02-23 16:24:54,655 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2021-02-23 16:24:54,655 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2021-02-23 16:24:54,655 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-02-23 16:24:54,655 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-02-23 16:24:54,656 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-02-23 16:24:54,656 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2021-02-23 16:24:54,656 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2021-02-23 16:24:54,656 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2021-02-23 16:24:54,656 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 16:24:54,656 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 16:24:54,656 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 16:24:54,657 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 16:24:54,657 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-23 16:24:54,657 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-02-23 16:24:54,657 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-23 16:24:54,657 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-23 16:24:54,657 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2021-02-23 16:24:54,657 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-23 16:24:54,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-23 16:24:54,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 16:24:54,658 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-23 16:24:54,658 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2021-02-23 16:24:54,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 16:24:54,658 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2021-02-23 16:24:54,659 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-02-23 16:24:54,659 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 16:24:54,659 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2021-02-23 16:24:54,659 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2021-02-23 16:24:54,659 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2021-02-23 16:24:54,659 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-02-23 16:24:54,660 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-02-23 16:24:54,660 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2021-02-23 16:24:54,660 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2021-02-23 16:24:54,660 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-02-23 16:24:54,660 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-02-23 16:24:54,660 INFO L130 BoogieDeclarations]: Found specification of procedure test [2021-02-23 16:24:54,661 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2021-02-23 16:24:54,661 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-02-23 16:24:54,661 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2021-02-23 16:24:54,661 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2021-02-23 16:24:54,661 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2021-02-23 16:24:54,661 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-02-23 16:24:54,661 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-02-23 16:24:54,662 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2021-02-23 16:24:54,662 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2021-02-23 16:24:54,662 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2021-02-23 16:24:54,662 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-02-23 16:24:54,662 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2021-02-23 16:24:54,662 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2021-02-23 16:24:54,662 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-02-23 16:24:54,663 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2021-02-23 16:24:54,663 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-02-23 16:24:54,663 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2021-02-23 16:24:54,663 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2021-02-23 16:24:54,663 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2021-02-23 16:24:54,663 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2021-02-23 16:24:54,663 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2021-02-23 16:24:54,664 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2021-02-23 16:24:54,664 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 16:24:54,664 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2021-02-23 16:24:54,664 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-02-23 16:24:54,664 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 16:24:54,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 16:24:54,664 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 16:24:55,926 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 16:24:55,927 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-23 16:24:55,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 04:24:55 BoogieIcfgContainer [2021-02-23 16:24:55,929 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 16:24:55,931 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 16:24:55,932 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 16:24:55,935 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 16:24:55,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 04:24:53" (1/3) ... [2021-02-23 16:24:55,936 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@85533f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 04:24:55, skipping insertion in model container [2021-02-23 16:24:55,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:24:54" (2/3) ... [2021-02-23 16:24:55,937 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@85533f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 04:24:55, skipping insertion in model container [2021-02-23 16:24:55,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 04:24:55" (3/3) ... [2021-02-23 16:24:55,938 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product32.cil.c [2021-02-23 16:24:55,945 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-23 16:24:55,951 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 16:24:55,969 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 16:24:55,993 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 16:24:55,994 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 16:24:55,994 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-23 16:24:55,994 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 16:24:55,994 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 16:24:55,994 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 16:24:55,995 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 16:24:55,995 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 16:24:56,018 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states. [2021-02-23 16:24:56,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-02-23 16:24:56,040 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 16:24:56,041 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] [2021-02-23 16:24:56,041 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 16:24:56,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 16:24:56,048 INFO L82 PathProgramCache]: Analyzing trace with hash 152128831, now seen corresponding path program 1 times [2021-02-23 16:24:56,057 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 16:24:56,058 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1980264174] [2021-02-23 16:24:56,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 16:24:56,134 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 16:24:56,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:24:56,509 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:24:56,510 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:24:56,511 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:24:56,512 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:24:56,780 WARN L202 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 16:24:56,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 16:24:56,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:24:56,909 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:24:56,911 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:24:56,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 16:24:56,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:24:56,939 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:24:56,940 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:24:56,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 16:24:56,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:24:56,946 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:24:56,947 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:24:56,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 16:24:56,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:24:56,960 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:24:56,961 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:24:56,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 16:24:56,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:24:56,964 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:24:56,965 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:24:56,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-02-23 16:24:56,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:24:56,969 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:24:56,969 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:24:56,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-23 16:24:56,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:24:56,975 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:24:56,976 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:24:56,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-02-23 16:24:56,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:24:56,979 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:24:56,980 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:24:57,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 16:24:57,052 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1980264174] [2021-02-23 16:24:57,053 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 16:24:57,054 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-23 16:24:57,054 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708298278] [2021-02-23 16:24:57,058 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-23 16:24:57,059 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 16:24:57,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-23 16:24:57,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-23 16:24:57,073 INFO L87 Difference]: Start difference. First operand 332 states. Second operand 3 states. [2021-02-23 16:24:58,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 16:24:58,719 INFO L93 Difference]: Finished difference Result 506 states and 605 transitions. [2021-02-23 16:24:58,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-23 16:24:58,722 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 158 [2021-02-23 16:24:58,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 16:24:58,738 INFO L225 Difference]: With dead ends: 506 [2021-02-23 16:24:58,739 INFO L226 Difference]: Without dead ends: 314 [2021-02-23 16:24:58,744 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-23 16:24:58,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2021-02-23 16:24:58,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 270. [2021-02-23 16:24:58,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 270 states. [2021-02-23 16:24:58,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 295 transitions. [2021-02-23 16:24:58,910 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 295 transitions. Word has length 158 [2021-02-23 16:24:58,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 16:24:58,911 INFO L480 AbstractCegarLoop]: Abstraction has 270 states and 295 transitions. [2021-02-23 16:24:58,911 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-23 16:24:58,912 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 295 transitions. [2021-02-23 16:24:58,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-02-23 16:24:58,917 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 16:24:58,917 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] [2021-02-23 16:24:58,917 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 16:24:58,918 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 16:24:58,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 16:24:58,918 INFO L82 PathProgramCache]: Analyzing trace with hash -1259719468, now seen corresponding path program 1 times [2021-02-23 16:24:58,919 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 16:24:58,919 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1204391817] [2021-02-23 16:24:58,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 16:24:58,925 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 16:24:58,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:24:59,018 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:24:59,018 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:24:59,019 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:24:59,020 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:24:59,023 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:24:59,023 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:24:59,289 WARN L202 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 16:24:59,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 16:24:59,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:24:59,365 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:24:59,365 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:24:59,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 16:24:59,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:24:59,378 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:24:59,379 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:24:59,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 16:24:59,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:24:59,384 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:24:59,384 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:24:59,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 16:24:59,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:24:59,389 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:24:59,389 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:24:59,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 16:24:59,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:24:59,392 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:24:59,392 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:24:59,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-02-23 16:24:59,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:24:59,396 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:24:59,396 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:24:59,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-02-23 16:24:59,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:24:59,403 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:24:59,404 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:24:59,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-02-23 16:24:59,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:24:59,406 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:24:59,407 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:24:59,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 16:24:59,446 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1204391817] [2021-02-23 16:24:59,447 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 16:24:59,447 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 16:24:59,448 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412580477] [2021-02-23 16:24:59,450 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 16:24:59,450 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 16:24:59,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 16:24:59,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 16:24:59,451 INFO L87 Difference]: Start difference. First operand 270 states and 295 transitions. Second operand 4 states. [2021-02-23 16:25:00,058 WARN L202 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 16:25:01,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 16:25:01,081 INFO L93 Difference]: Finished difference Result 412 states and 467 transitions. [2021-02-23 16:25:01,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-23 16:25:01,082 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 159 [2021-02-23 16:25:01,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 16:25:01,086 INFO L225 Difference]: With dead ends: 412 [2021-02-23 16:25:01,086 INFO L226 Difference]: Without dead ends: 297 [2021-02-23 16:25:01,089 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-23 16:25:01,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2021-02-23 16:25:01,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 260. [2021-02-23 16:25:01,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 260 states. [2021-02-23 16:25:01,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 282 transitions. [2021-02-23 16:25:01,253 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 282 transitions. Word has length 159 [2021-02-23 16:25:01,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 16:25:01,254 INFO L480 AbstractCegarLoop]: Abstraction has 260 states and 282 transitions. [2021-02-23 16:25:01,254 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 16:25:01,254 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 282 transitions. [2021-02-23 16:25:01,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2021-02-23 16:25:01,258 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 16:25:01,258 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] [2021-02-23 16:25:01,258 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-23 16:25:01,258 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 16:25:01,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 16:25:01,259 INFO L82 PathProgramCache]: Analyzing trace with hash 896457681, now seen corresponding path program 1 times [2021-02-23 16:25:01,259 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 16:25:01,260 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [126980494] [2021-02-23 16:25:01,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 16:25:01,263 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 16:25:01,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:01,350 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:01,350 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:01,351 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:01,352 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:25:01,355 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:01,355 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:25:01,359 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:01,360 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:01,360 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:01,361 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 16:25:01,366 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:01,366 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:01,616 WARN L202 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 16:25:01,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 16:25:01,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:01,673 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:01,674 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:01,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 16:25:01,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:01,682 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:01,683 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:01,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 16:25:01,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:01,685 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:01,686 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:01,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 16:25:01,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:01,703 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:01,704 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:01,712 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:01,714 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 16:25:01,725 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:01,726 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 16:25:01,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 16:25:01,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:01,739 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:01,740 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:01,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-02-23 16:25:01,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:01,754 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:01,754 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:25:01,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-02-23 16:25:01,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:01,767 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:01,767 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:01,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-02-23 16:25:01,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:01,773 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:01,774 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:01,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-02-23 16:25:01,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:01,776 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:01,777 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:01,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 16:25:01,817 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [126980494] [2021-02-23 16:25:01,817 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 16:25:01,817 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-23 16:25:01,817 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631261846] [2021-02-23 16:25:01,818 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-23 16:25:01,818 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 16:25:01,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-23 16:25:01,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-02-23 16:25:01,819 INFO L87 Difference]: Start difference. First operand 260 states and 282 transitions. Second operand 10 states. [2021-02-23 16:25:02,447 WARN L202 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 16:25:02,764 WARN L202 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-23 16:25:03,071 WARN L202 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-23 16:25:03,357 WARN L202 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 16:25:03,667 WARN L202 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 16:25:03,946 WARN L202 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 16:25:04,873 WARN L202 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 16:25:07,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 16:25:07,289 INFO L93 Difference]: Finished difference Result 716 states and 838 transitions. [2021-02-23 16:25:07,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-23 16:25:07,290 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 172 [2021-02-23 16:25:07,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 16:25:07,299 INFO L225 Difference]: With dead ends: 716 [2021-02-23 16:25:07,300 INFO L226 Difference]: Without dead ends: 571 [2021-02-23 16:25:07,301 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2021-02-23 16:25:07,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2021-02-23 16:25:07,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 476. [2021-02-23 16:25:07,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 476 states. [2021-02-23 16:25:07,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 535 transitions. [2021-02-23 16:25:07,552 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 535 transitions. Word has length 172 [2021-02-23 16:25:07,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 16:25:07,553 INFO L480 AbstractCegarLoop]: Abstraction has 476 states and 535 transitions. [2021-02-23 16:25:07,553 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-23 16:25:07,553 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 535 transitions. [2021-02-23 16:25:07,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-02-23 16:25:07,557 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 16:25:07,557 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, 1] [2021-02-23 16:25:07,557 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-23 16:25:07,557 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 16:25:07,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 16:25:07,558 INFO L82 PathProgramCache]: Analyzing trace with hash -212429206, now seen corresponding path program 1 times [2021-02-23 16:25:07,558 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 16:25:07,559 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1207824543] [2021-02-23 16:25:07,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 16:25:07,562 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 16:25:07,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:07,636 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:07,637 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:25:07,640 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:07,640 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:25:07,640 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:07,641 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:25:07,641 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:07,643 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:25:07,644 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:07,644 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:25:07,644 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:07,646 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:25:07,650 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:07,650 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:25:07,655 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:07,658 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:07,892 WARN L202 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 16:25:07,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 16:25:07,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:07,938 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:07,939 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:07,939 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:07,940 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 16:25:07,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 16:25:07,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:07,948 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:07,949 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:07,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 16:25:07,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:07,951 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:07,952 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:07,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 16:25:07,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:07,955 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:07,956 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:07,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 16:25:07,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:07,959 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:07,959 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:07,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-02-23 16:25:07,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:07,973 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:07,973 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:07,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-02-23 16:25:07,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:07,976 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:07,977 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:07,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-02-23 16:25:07,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:07,981 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:07,981 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:07,982 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:07,982 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:25:07,990 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:07,991 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:25:07,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-02-23 16:25:08,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:08,002 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:08,002 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:08,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 16:25:08,052 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1207824543] [2021-02-23 16:25:08,053 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 16:25:08,053 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-23 16:25:08,053 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014083738] [2021-02-23 16:25:08,054 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-23 16:25:08,054 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 16:25:08,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-23 16:25:08,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-02-23 16:25:08,055 INFO L87 Difference]: Start difference. First operand 476 states and 535 transitions. Second operand 9 states. [2021-02-23 16:25:08,576 WARN L202 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 16:25:10,474 WARN L202 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 16:25:10,793 WARN L202 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 16:25:11,158 WARN L202 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 16:25:11,500 WARN L202 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 16:25:11,764 WARN L202 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 16:25:12,067 WARN L202 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 16:25:12,352 WARN L202 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 16:25:13,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 16:25:13,335 INFO L93 Difference]: Finished difference Result 1284 states and 1548 transitions. [2021-02-23 16:25:13,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-23 16:25:13,338 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 177 [2021-02-23 16:25:13,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 16:25:13,346 INFO L225 Difference]: With dead ends: 1284 [2021-02-23 16:25:13,346 INFO L226 Difference]: Without dead ends: 923 [2021-02-23 16:25:13,349 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2021-02-23 16:25:13,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 923 states. [2021-02-23 16:25:13,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 923 to 820. [2021-02-23 16:25:13,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 820 states. [2021-02-23 16:25:13,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 820 states to 820 states and 948 transitions. [2021-02-23 16:25:13,680 INFO L78 Accepts]: Start accepts. Automaton has 820 states and 948 transitions. Word has length 177 [2021-02-23 16:25:13,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 16:25:13,681 INFO L480 AbstractCegarLoop]: Abstraction has 820 states and 948 transitions. [2021-02-23 16:25:13,681 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-23 16:25:13,681 INFO L276 IsEmpty]: Start isEmpty. Operand 820 states and 948 transitions. [2021-02-23 16:25:13,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2021-02-23 16:25:13,686 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 16:25:13,687 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, 1, 1, 1, 1, 1, 1] [2021-02-23 16:25:13,687 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-23 16:25:13,687 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 16:25:13,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 16:25:13,688 INFO L82 PathProgramCache]: Analyzing trace with hash -1393706554, now seen corresponding path program 1 times [2021-02-23 16:25:13,688 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 16:25:13,688 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [801000314] [2021-02-23 16:25:13,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 16:25:13,691 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 16:25:13,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 16:25:13,768 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 16:25:13,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 16:25:13,838 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 16:25:14,046 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-23 16:25:14,046 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-23 16:25:14,047 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-23 16:25:14,071 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 04:25:14 BoogieIcfgContainer [2021-02-23 16:25:14,072 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-23 16:25:14,073 INFO L168 Benchmark]: Toolchain (without parser) took 20273.96 ms. Allocated memory was 179.3 MB in the beginning and 606.1 MB in the end (delta: 426.8 MB). Free memory was 162.3 MB in the beginning and 220.8 MB in the end (delta: -58.6 MB). Peak memory consumption was 368.2 MB. Max. memory is 8.0 GB. [2021-02-23 16:25:14,073 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 179.3 MB. Free memory was 153.8 MB in the beginning and 153.7 MB in the end (delta: 81.6 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 16:25:14,074 INFO L168 Benchmark]: CACSL2BoogieTranslator took 548.44 ms. Allocated memory is still 179.3 MB. Free memory was 161.2 MB in the beginning and 139.8 MB in the end (delta: 21.4 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2021-02-23 16:25:14,074 INFO L168 Benchmark]: Boogie Preprocessor took 182.07 ms. Allocated memory is still 179.3 MB. Free memory was 139.8 MB in the beginning and 158.9 MB in the end (delta: -19.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-02-23 16:25:14,075 INFO L168 Benchmark]: RCFGBuilder took 1382.31 ms. Allocated memory was 179.3 MB in the beginning and 223.3 MB in the end (delta: 44.0 MB). Free memory was 158.9 MB in the beginning and 142.1 MB in the end (delta: 16.7 MB). Peak memory consumption was 61.7 MB. Max. memory is 8.0 GB. [2021-02-23 16:25:14,076 INFO L168 Benchmark]: TraceAbstraction took 18140.24 ms. Allocated memory was 223.3 MB in the beginning and 606.1 MB in the end (delta: 382.7 MB). Free memory was 141.6 MB in the beginning and 220.8 MB in the end (delta: -79.2 MB). Peak memory consumption was 303.0 MB. Max. memory is 8.0 GB. [2021-02-23 16:25:14,078 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 179.3 MB. Free memory was 153.8 MB in the beginning and 153.7 MB in the end (delta: 81.6 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 548.44 ms. Allocated memory is still 179.3 MB. Free memory was 161.2 MB in the beginning and 139.8 MB in the end (delta: 21.4 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 182.07 ms. Allocated memory is still 179.3 MB. Free memory was 139.8 MB in the beginning and 158.9 MB in the end (delta: -19.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1382.31 ms. Allocated memory was 179.3 MB in the beginning and 223.3 MB in the end (delta: 44.0 MB). Free memory was 158.9 MB in the beginning and 142.1 MB in the end (delta: 16.7 MB). Peak memory consumption was 61.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 18140.24 ms. Allocated memory was 223.3 MB in the beginning and 606.1 MB in the end (delta: 382.7 MB). Free memory was 141.6 MB in the beginning and 220.8 MB in the end (delta: -79.2 MB). Peak memory consumption was 303.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 714]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L491] int pumpRunning = 0; [L492] int systemActive = 1; [L719] int cleanupTimeShifts = 4; [L888] int waterLevel = 1; [L889] int methaneLevelCritical = 0; [L795] int retValue_acc ; [L796] int tmp ; [L800] FCALL select_helpers() [L801] FCALL select_features() [L802] CALL, EXPR valid_product() [L879] int retValue_acc ; [L882] retValue_acc = 1 [L883] return (retValue_acc); [L802] RET, EXPR valid_product() [L802] tmp = valid_product() [L804] COND TRUE \read(tmp) [L806] FCALL setup() [L807] CALL runTest() [L786] CALL test() [L415] int splverifierCounter ; [L416] int tmp ; [L417] int tmp___0 ; [L418] int tmp___1 ; [L419] int tmp___2 ; [L422] splverifierCounter = 0 [L424] COND TRUE 1 [L426] COND TRUE splverifierCounter < 4 [L432] tmp = __VERIFIER_nondet_int() [L434] COND TRUE \read(tmp) [L436] CALL waterRise() [L906] COND TRUE waterLevel < 2 [L907] waterLevel = waterLevel + 1 [L436] RET waterRise() [L442] tmp___0 = __VERIFIER_nondet_int() [L444] COND FALSE !(\read(tmp___0)) [L452] tmp___2 = __VERIFIER_nondet_int() [L454] COND FALSE !(\read(tmp___2)) [L460] tmp___1 = __VERIFIER_nondet_int() [L462] COND TRUE \read(tmp___1) [L464] CALL stopSystem() [L690] COND FALSE !(\read(pumpRunning)) [L697] systemActive = 0 [L464] RET stopSystem() [L471] CALL timeShift() [L499] COND FALSE !(\read(pumpRunning)) [L506] COND FALSE !(\read(systemActive)) [L514] CALL __utac_acc__Specification3_spec__1() [L820] int tmp ; [L821] int tmp___0 ; [L822] int tmp___1 ; [L826] CALL, EXPR isMethaneLevelCritical() [L927] int retValue_acc ; [L930] retValue_acc = methaneLevelCritical [L931] return (retValue_acc); [L826] RET, EXPR isMethaneLevelCritical() [L826] tmp = isMethaneLevelCritical() [L828] COND FALSE !(\read(tmp)) [L832] CALL, EXPR getWaterLevel() [L959] int retValue_acc ; [L962] retValue_acc = waterLevel [L963] return (retValue_acc); [L832] RET, EXPR getWaterLevel() [L832] tmp___0 = getWaterLevel() [L834] COND TRUE tmp___0 == 2 [L836] CALL, EXPR isPumpRunning() [L623] int retValue_acc ; [L626] retValue_acc = pumpRunning [L627] return (retValue_acc); [L836] RET, EXPR isPumpRunning() [L836] tmp___1 = isPumpRunning() [L838] COND FALSE !(\read(tmp___1)) [L842] CALL __automaton_fail() [L714] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 42 procedures, 649 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 18.0s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 14.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1044 SDtfs, 1582 SDslu, 1494 SDs, 0 SdLazy, 3241 SolverSat, 581 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 116 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 5.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=820occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 4 MinimizatonAttempts, 279 StatesRemovedByMinimization, 4 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...