/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_product47.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 00:02:34,880 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 00:02:34,884 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 00:02:34,920 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-07 00:02:34,920 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-07 00:02:34,922 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-07 00:02:34,924 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-07 00:02:34,926 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-07 00:02:34,929 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-07 00:02:34,930 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-07 00:02:34,931 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-07 00:02:34,933 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-07 00:02:34,933 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 00:02:34,935 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 00:02:34,936 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 00:02:34,937 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 00:02:34,939 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 00:02:34,940 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 00:02:34,964 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 00:02:34,966 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 00:02:34,968 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 00:02:34,970 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 00:02:34,971 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 00:02:34,972 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 00:02:34,975 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-07 00:02:34,976 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-07 00:02:34,976 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-07 00:02:34,977 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-07 00:02:34,978 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-07 00:02:34,979 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-07 00:02:34,980 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-07 00:02:34,981 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-07 00:02:34,982 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-07 00:02:34,983 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-07 00:02:34,984 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-07 00:02:34,984 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-07 00:02:34,985 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-07 00:02:34,986 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-07 00:02:34,986 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 00:02:34,987 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 00:02:34,988 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 00:02:34,989 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-11-07 00:02:35,002 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 00:02:35,003 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 00:02:35,005 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 00:02:35,005 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 00:02:35,005 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 00:02:35,006 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 00:02:35,006 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 00:02:35,006 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 00:02:35,006 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 00:02:35,007 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 00:02:35,007 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 00:02:35,007 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 00:02:35,008 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 00:02:35,008 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 00:02:35,008 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 00:02:35,008 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 00:02:35,009 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 00:02:35,009 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 00:02:35,009 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 00:02:35,010 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 00:02:35,010 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 00:02:35,010 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 00:02:35,010 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-07 00:02:35,434 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 00:02:35,458 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 00:02:35,461 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 00:02:35,463 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 00:02:35,464 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 00:02:35,465 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product47.cil.c [2020-11-07 00:02:35,548 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01613eea5/d52479fc67904da6af544d03f74a2abb/FLAG908ead8be [2020-11-07 00:02:36,173 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 00:02:36,174 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product47.cil.c [2020-11-07 00:02:36,193 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01613eea5/d52479fc67904da6af544d03f74a2abb/FLAG908ead8be [2020-11-07 00:02:36,484 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01613eea5/d52479fc67904da6af544d03f74a2abb [2020-11-07 00:02:36,487 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 00:02:36,496 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 00:02:36,499 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 00:02:36,500 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 00:02:36,504 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 00:02:36,504 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:02:36" (1/1) ... [2020-11-07 00:02:36,510 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42dc20ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:02:36, skipping insertion in model container [2020-11-07 00:02:36,510 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:02:36" (1/1) ... [2020-11-07 00:02:36,520 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 00:02:36,603 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 00:02:36,893 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:02:36,909 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 00:02:37,063 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:02:37,108 INFO L208 MainTranslator]: Completed translation [2020-11-07 00:02:37,109 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:02:37 WrapperNode [2020-11-07 00:02:37,109 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 00:02:37,111 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 00:02:37,111 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 00:02:37,111 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 00:02:37,130 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:02:37" (1/1) ... [2020-11-07 00:02:37,131 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:02:37" (1/1) ... [2020-11-07 00:02:37,150 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:02:37" (1/1) ... [2020-11-07 00:02:37,150 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:02:37" (1/1) ... [2020-11-07 00:02:37,207 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:02:37" (1/1) ... [2020-11-07 00:02:37,219 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:02:37" (1/1) ... [2020-11-07 00:02:37,224 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:02:37" (1/1) ... [2020-11-07 00:02:37,232 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 00:02:37,233 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 00:02:37,234 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 00:02:37,234 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 00:02:37,235 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:02:37" (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 [2020-11-07 00:02:37,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 00:02:37,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 00:02:37,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-11-07 00:02:37,327 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 00:02:37,328 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-11-07 00:02:37,328 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-11-07 00:02:37,328 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-11-07 00:02:37,328 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-11-07 00:02:37,328 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-11-07 00:02:37,328 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 00:02:37,329 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-11-07 00:02:37,329 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-11-07 00:02:37,329 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-11-07 00:02:37,329 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-11-07 00:02:37,329 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-11-07 00:02:37,329 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-11-07 00:02:37,330 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-11-07 00:02:37,330 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-11-07 00:02:37,330 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-11-07 00:02:37,330 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-11-07 00:02:37,330 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-11-07 00:02:37,330 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-11-07 00:02:37,331 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-11-07 00:02:37,331 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-11-07 00:02:37,331 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-11-07 00:02:37,331 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-11-07 00:02:37,331 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-11-07 00:02:37,331 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-11-07 00:02:37,332 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-11-07 00:02:37,332 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-11-07 00:02:37,332 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-11-07 00:02:37,332 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-11-07 00:02:37,332 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-11-07 00:02:37,332 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-11-07 00:02:37,333 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-11-07 00:02:37,333 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-11-07 00:02:37,333 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-11-07 00:02:37,333 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-11-07 00:02:37,333 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-11-07 00:02:37,333 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-11-07 00:02:37,333 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-11-07 00:02:37,334 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 00:02:37,334 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 00:02:37,334 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 00:02:37,334 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 00:02:37,334 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-07 00:02:37,334 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-11-07 00:02:37,334 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-11-07 00:02:37,335 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-11-07 00:02:37,335 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-11-07 00:02:37,335 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-11-07 00:02:37,335 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-11-07 00:02:37,335 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-11-07 00:02:37,335 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-11-07 00:02:37,336 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-11-07 00:02:37,336 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-11-07 00:02:37,336 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-11-07 00:02:37,336 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-11-07 00:02:37,336 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-11-07 00:02:37,336 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-11-07 00:02:37,336 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 00:02:37,336 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-11-07 00:02:37,337 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-07 00:02:37,337 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-07 00:02:37,337 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-11-07 00:02:37,337 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-07 00:02:37,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-07 00:02:37,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 00:02:37,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-07 00:02:37,338 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-11-07 00:02:37,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 00:02:37,338 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-11-07 00:02:37,338 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-11-07 00:02:37,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 00:02:37,338 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-11-07 00:02:37,339 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-11-07 00:02:37,339 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-11-07 00:02:37,339 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-11-07 00:02:37,339 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-11-07 00:02:37,339 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-11-07 00:02:37,339 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-11-07 00:02:37,339 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-11-07 00:02:37,340 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-11-07 00:02:37,340 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-11-07 00:02:37,340 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-11-07 00:02:37,340 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-11-07 00:02:37,340 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-11-07 00:02:37,340 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-11-07 00:02:37,341 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-11-07 00:02:37,341 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-11-07 00:02:37,341 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-11-07 00:02:37,341 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-11-07 00:02:37,341 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-11-07 00:02:37,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 00:02:37,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 00:02:37,342 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 00:02:39,085 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 00:02:39,085 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-07 00:02:39,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:02:39 BoogieIcfgContainer [2020-11-07 00:02:39,091 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 00:02:39,094 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 00:02:39,095 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 00:02:39,099 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 00:02:39,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:02:36" (1/3) ... [2020-11-07 00:02:39,100 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@247db37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:02:39, skipping insertion in model container [2020-11-07 00:02:39,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:02:37" (2/3) ... [2020-11-07 00:02:39,101 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@247db37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:02:39, skipping insertion in model container [2020-11-07 00:02:39,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:02:39" (3/3) ... [2020-11-07 00:02:39,103 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product47.cil.c [2020-11-07 00:02:39,120 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 00:02:39,125 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-11-07 00:02:39,137 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-07 00:02:39,172 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 00:02:39,173 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 00:02:39,173 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-11-07 00:02:39,173 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 00:02:39,174 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 00:02:39,174 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 00:02:39,174 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 00:02:39,174 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 00:02:39,199 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states. [2020-11-07 00:02:39,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-11-07 00:02:39,221 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:02:39,222 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] [2020-11-07 00:02:39,223 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]=== [2020-11-07 00:02:39,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:02:39,229 INFO L82 PathProgramCache]: Analyzing trace with hash -372905331, now seen corresponding path program 1 times [2020-11-07 00:02:39,239 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:02:39,240 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [857752868] [2020-11-07 00:02:39,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:02:39,324 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:02:39,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:40,462 WARN L194 SmtUtils]: Spent 604.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:02:40,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:02:40,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:40,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:02:40,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:40,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:02:40,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:40,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:02:40,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:40,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:02:40,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:40,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-11-07 00:02:40,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:40,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-11-07 00:02:40,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:40,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-11-07 00:02:40,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:40,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 00:02:40,668 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [857752868] [2020-11-07 00:02:40,671 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:02:40,672 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-07 00:02:40,673 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044168879] [2020-11-07 00:02:40,689 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-07 00:02:40,690 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:02:40,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-07 00:02:40,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-07 00:02:40,706 INFO L87 Difference]: Start difference. First operand 336 states. Second operand 3 states. [2020-11-07 00:02:42,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:02:42,653 INFO L93 Difference]: Finished difference Result 533 states and 636 transitions. [2020-11-07 00:02:42,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-07 00:02:42,655 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2020-11-07 00:02:42,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:02:42,676 INFO L225 Difference]: With dead ends: 533 [2020-11-07 00:02:42,676 INFO L226 Difference]: Without dead ends: 327 [2020-11-07 00:02:42,686 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-07 00:02:42,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2020-11-07 00:02:42,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 282. [2020-11-07 00:02:42,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2020-11-07 00:02:42,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 309 transitions. [2020-11-07 00:02:42,883 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 309 transitions. Word has length 159 [2020-11-07 00:02:42,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:02:42,884 INFO L481 AbstractCegarLoop]: Abstraction has 282 states and 309 transitions. [2020-11-07 00:02:42,884 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-07 00:02:42,885 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 309 transitions. [2020-11-07 00:02:42,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-11-07 00:02:42,890 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:02:42,891 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] [2020-11-07 00:02:42,891 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 00:02:42,891 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]=== [2020-11-07 00:02:42,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:02:42,892 INFO L82 PathProgramCache]: Analyzing trace with hash 264301773, now seen corresponding path program 1 times [2020-11-07 00:02:42,892 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:02:42,893 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1358619265] [2020-11-07 00:02:42,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:02:42,897 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:02:42,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:43,265 WARN L194 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:02:43,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:02:43,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:43,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:02:43,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:43,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:02:43,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:43,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:02:43,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:43,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:02:43,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:43,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-11-07 00:02:43,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:43,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-11-07 00:02:43,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:43,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-11-07 00:02:43,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:43,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 00:02:43,362 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1358619265] [2020-11-07 00:02:43,363 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:02:43,363 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-07 00:02:43,363 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139242851] [2020-11-07 00:02:43,364 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-07 00:02:43,364 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:02:43,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-07 00:02:43,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-07 00:02:43,367 INFO L87 Difference]: Start difference. First operand 282 states and 309 transitions. Second operand 4 states. [2020-11-07 00:02:44,058 WARN L194 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 00:02:45,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:02:45,261 INFO L93 Difference]: Finished difference Result 441 states and 499 transitions. [2020-11-07 00:02:45,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-07 00:02:45,261 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-11-07 00:02:45,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:02:45,267 INFO L225 Difference]: With dead ends: 441 [2020-11-07 00:02:45,267 INFO L226 Difference]: Without dead ends: 310 [2020-11-07 00:02:45,269 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-07 00:02:45,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2020-11-07 00:02:45,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 272. [2020-11-07 00:02:45,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 272 states. [2020-11-07 00:02:45,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 296 transitions. [2020-11-07 00:02:45,393 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 296 transitions. Word has length 160 [2020-11-07 00:02:45,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:02:45,394 INFO L481 AbstractCegarLoop]: Abstraction has 272 states and 296 transitions. [2020-11-07 00:02:45,394 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-07 00:02:45,394 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 296 transitions. [2020-11-07 00:02:45,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-11-07 00:02:45,397 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:02:45,397 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] [2020-11-07 00:02:45,398 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 00:02:45,398 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]=== [2020-11-07 00:02:45,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:02:45,399 INFO L82 PathProgramCache]: Analyzing trace with hash -1937027755, now seen corresponding path program 1 times [2020-11-07 00:02:45,399 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:02:45,399 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [264519947] [2020-11-07 00:02:45,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:02:45,403 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:02:45,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:45,803 WARN L194 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:02:45,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:02:45,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:45,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:02:45,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:45,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:02:45,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:45,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:02:45,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:45,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:02:45,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:45,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-11-07 00:02:45,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:45,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-11-07 00:02:45,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:45,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-11-07 00:02:45,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:46,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 00:02:46,022 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [264519947] [2020-11-07 00:02:46,022 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:02:46,022 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-07 00:02:46,023 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857162244] [2020-11-07 00:02:46,023 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-07 00:02:46,024 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:02:46,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-07 00:02:46,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-11-07 00:02:46,025 INFO L87 Difference]: Start difference. First operand 272 states and 296 transitions. Second operand 9 states. [2020-11-07 00:02:46,663 WARN L194 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:02:47,037 WARN L194 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 00:02:47,330 WARN L194 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-07 00:02:47,636 WARN L194 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:02:47,992 WARN L194 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 00:02:48,251 WARN L194 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:02:49,325 WARN L194 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 00:02:52,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:02:52,106 INFO L93 Difference]: Finished difference Result 733 states and 846 transitions. [2020-11-07 00:02:52,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-07 00:02:52,112 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 169 [2020-11-07 00:02:52,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:02:52,117 INFO L225 Difference]: With dead ends: 733 [2020-11-07 00:02:52,117 INFO L226 Difference]: Without dead ends: 576 [2020-11-07 00:02:52,120 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-11-07 00:02:52,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states. [2020-11-07 00:02:52,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 503. [2020-11-07 00:02:52,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 503 states. [2020-11-07 00:02:52,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 566 transitions. [2020-11-07 00:02:52,409 INFO L78 Accepts]: Start accepts. Automaton has 503 states and 566 transitions. Word has length 169 [2020-11-07 00:02:52,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:02:52,410 INFO L481 AbstractCegarLoop]: Abstraction has 503 states and 566 transitions. [2020-11-07 00:02:52,410 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-07 00:02:52,410 INFO L276 IsEmpty]: Start isEmpty. Operand 503 states and 566 transitions. [2020-11-07 00:02:52,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-11-07 00:02:52,414 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:02:52,414 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] [2020-11-07 00:02:52,414 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-07 00:02:52,415 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]=== [2020-11-07 00:02:52,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:02:52,415 INFO L82 PathProgramCache]: Analyzing trace with hash -415538468, now seen corresponding path program 1 times [2020-11-07 00:02:52,416 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:02:52,416 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1263109362] [2020-11-07 00:02:52,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:02:52,419 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:02:52,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:52,744 WARN L194 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:02:52,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:02:52,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:52,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:02:52,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:52,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:02:52,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:52,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:02:52,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:52,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:02:52,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:52,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-11-07 00:02:52,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:52,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-11-07 00:02:52,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:52,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-11-07 00:02:52,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:52,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-11-07 00:02:52,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:52,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 00:02:52,902 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1263109362] [2020-11-07 00:02:52,902 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:02:52,902 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-07 00:02:52,902 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056604565] [2020-11-07 00:02:52,903 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-07 00:02:52,903 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:02:52,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-07 00:02:52,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-11-07 00:02:52,904 INFO L87 Difference]: Start difference. First operand 503 states and 566 transitions. Second operand 9 states. [2020-11-07 00:02:53,462 WARN L194 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:02:55,612 WARN L194 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:02:55,945 WARN L194 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 00:02:56,286 WARN L194 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:02:56,694 WARN L194 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:02:56,951 WARN L194 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 00:02:57,204 WARN L194 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:02:57,475 WARN L194 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:02:58,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:02:58,638 INFO L93 Difference]: Finished difference Result 1365 states and 1648 transitions. [2020-11-07 00:02:58,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-11-07 00:02:58,639 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 178 [2020-11-07 00:02:58,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:02:58,652 INFO L225 Difference]: With dead ends: 1365 [2020-11-07 00:02:58,652 INFO L226 Difference]: Without dead ends: 977 [2020-11-07 00:02:58,655 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-11-07 00:02:58,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 977 states. [2020-11-07 00:02:59,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 977 to 873. [2020-11-07 00:02:59,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 873 states. [2020-11-07 00:02:59,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1007 transitions. [2020-11-07 00:02:59,156 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1007 transitions. Word has length 178 [2020-11-07 00:02:59,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:02:59,157 INFO L481 AbstractCegarLoop]: Abstraction has 873 states and 1007 transitions. [2020-11-07 00:02:59,157 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-07 00:02:59,157 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1007 transitions. [2020-11-07 00:02:59,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-11-07 00:02:59,167 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:02:59,171 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, 1] [2020-11-07 00:02:59,171 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-07 00:02:59,172 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]=== [2020-11-07 00:02:59,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:02:59,172 INFO L82 PathProgramCache]: Analyzing trace with hash 730042814, now seen corresponding path program 1 times [2020-11-07 00:02:59,173 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:02:59,173 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [102987141] [2020-11-07 00:02:59,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:02:59,176 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:02:59,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:59,592 WARN L194 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:02:59,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:02:59,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:59,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:02:59,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:59,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:02:59,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:59,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:02:59,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:59,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:02:59,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:59,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-11-07 00:02:59,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:59,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-11-07 00:02:59,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:59,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-11-07 00:02:59,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:59,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-11-07 00:02:59,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:59,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2020-11-07 00:02:59,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:59,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 00:02:59,738 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [102987141] [2020-11-07 00:02:59,738 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:02:59,738 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-07 00:02:59,738 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738272887] [2020-11-07 00:02:59,739 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-07 00:02:59,739 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:02:59,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-07 00:02:59,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-07 00:02:59,740 INFO L87 Difference]: Start difference. First operand 873 states and 1007 transitions. Second operand 6 states. [2020-11-07 00:03:00,350 WARN L194 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:03:02,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:03:02,687 INFO L93 Difference]: Finished difference Result 2014 states and 2424 transitions. [2020-11-07 00:03:02,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-07 00:03:02,688 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 183 [2020-11-07 00:03:02,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:03:02,696 INFO L225 Difference]: With dead ends: 2014 [2020-11-07 00:03:02,696 INFO L226 Difference]: Without dead ends: 1256 [2020-11-07 00:03:02,700 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-11-07 00:03:02,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1256 states. [2020-11-07 00:03:03,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1256 to 1158. [2020-11-07 00:03:03,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1158 states. [2020-11-07 00:03:03,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1158 states to 1158 states and 1321 transitions. [2020-11-07 00:03:03,233 INFO L78 Accepts]: Start accepts. Automaton has 1158 states and 1321 transitions. Word has length 183 [2020-11-07 00:03:03,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:03:03,233 INFO L481 AbstractCegarLoop]: Abstraction has 1158 states and 1321 transitions. [2020-11-07 00:03:03,233 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-07 00:03:03,233 INFO L276 IsEmpty]: Start isEmpty. Operand 1158 states and 1321 transitions. [2020-11-07 00:03:03,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-11-07 00:03:03,237 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:03:03,237 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, 1] [2020-11-07 00:03:03,237 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-07 00:03:03,238 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]=== [2020-11-07 00:03:03,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:03:03,238 INFO L82 PathProgramCache]: Analyzing trace with hash -1512211456, now seen corresponding path program 1 times [2020-11-07 00:03:03,239 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:03:03,239 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1915357395] [2020-11-07 00:03:03,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:03:03,242 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:03:03,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 00:03:03,327 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 00:03:03,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 00:03:03,405 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 00:03:03,624 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-11-07 00:03:03,624 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-07 00:03:03,626 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-07 00:03:03,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:03:03 BoogieIcfgContainer [2020-11-07 00:03:03,667 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 00:03:03,670 INFO L168 Benchmark]: Toolchain (without parser) took 27179.01 ms. Allocated memory was 151.0 MB in the beginning and 556.8 MB in the end (delta: 405.8 MB). Free memory was 126.6 MB in the beginning and 316.9 MB in the end (delta: -190.3 MB). Peak memory consumption was 216.4 MB. Max. memory is 8.0 GB. [2020-11-07 00:03:03,675 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 151.0 MB. Free memory was 125.5 MB in the beginning and 125.4 MB in the end (delta: 117.5 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 00:03:03,678 INFO L168 Benchmark]: CACSL2BoogieTranslator took 610.21 ms. Allocated memory is still 151.0 MB. Free memory was 125.9 MB in the beginning and 104.2 MB in the end (delta: 21.7 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-11-07 00:03:03,679 INFO L168 Benchmark]: Boogie Preprocessor took 122.12 ms. Allocated memory is still 151.0 MB. Free memory was 104.0 MB in the beginning and 131.5 MB in the end (delta: -27.5 MB). Peak memory consumption was 6.0 MB. Max. memory is 8.0 GB. [2020-11-07 00:03:03,680 INFO L168 Benchmark]: RCFGBuilder took 1857.94 ms. Allocated memory is still 151.0 MB. Free memory was 131.5 MB in the beginning and 97.2 MB in the end (delta: 34.3 MB). Peak memory consumption was 76.7 MB. Max. memory is 8.0 GB. [2020-11-07 00:03:03,681 INFO L168 Benchmark]: TraceAbstraction took 24572.70 ms. Allocated memory was 151.0 MB in the beginning and 556.8 MB in the end (delta: 405.8 MB). Free memory was 97.2 MB in the beginning and 316.9 MB in the end (delta: -219.7 MB). Peak memory consumption was 186.1 MB. Max. memory is 8.0 GB. [2020-11-07 00:03:03,691 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 151.0 MB. Free memory was 125.5 MB in the beginning and 125.4 MB in the end (delta: 117.5 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 610.21 ms. Allocated memory is still 151.0 MB. Free memory was 125.9 MB in the beginning and 104.2 MB in the end (delta: 21.7 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 122.12 ms. Allocated memory is still 151.0 MB. Free memory was 104.0 MB in the beginning and 131.5 MB in the end (delta: -27.5 MB). Peak memory consumption was 6.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1857.94 ms. Allocated memory is still 151.0 MB. Free memory was 131.5 MB in the beginning and 97.2 MB in the end (delta: 34.3 MB). Peak memory consumption was 76.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 24572.70 ms. Allocated memory was 151.0 MB in the beginning and 556.8 MB in the end (delta: 405.8 MB). Free memory was 97.2 MB in the beginning and 316.9 MB in the end (delta: -219.7 MB). Peak memory consumption was 186.1 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: [L51] int cleanupTimeShifts = 4; [L359] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L631] int pumpRunning = 0; [L632] int systemActive = 1; [L843] int waterLevel = 1; [L844] int methaneLevelCritical = 0; [L132] int retValue_acc ; [L133] int tmp ; [L137] FCALL select_helpers() [L138] FCALL select_features() [L139] CALL, EXPR valid_product() [L181] int retValue_acc ; [L184] retValue_acc = 1 [L185] return (retValue_acc); [L139] RET, EXPR valid_product() [L139] tmp = valid_product() [L141] COND TRUE \read(tmp) [L143] FCALL setup() [L144] CALL runTest() [L123] CALL test() [L558] int splverifierCounter ; [L559] int tmp ; [L560] int tmp___0 ; [L561] int tmp___1 ; [L562] int tmp___2 ; [L565] splverifierCounter = 0 [L567] COND TRUE 1 [L569] COND TRUE splverifierCounter < 4 [L575] tmp = __VERIFIER_nondet_int() [L577] COND TRUE \read(tmp) [L579] CALL waterRise() [L861] COND TRUE waterLevel < 2 [L862] waterLevel = waterLevel + 1 [L579] RET waterRise() [L585] tmp___0 = __VERIFIER_nondet_int() [L587] COND FALSE !(\read(tmp___0)) [L595] tmp___2 = __VERIFIER_nondet_int() [L597] COND FALSE !(\read(tmp___2)) [L601] tmp___1 = __VERIFIER_nondet_int() [L603] COND TRUE \read(tmp___1) [L605] CALL stopSystem() [L830] COND FALSE !(\read(pumpRunning)) [L837] systemActive = 0 [L605] RET stopSystem() [L612] CALL timeShift() [L639] COND FALSE !(\read(pumpRunning)) [L646] COND FALSE !(\read(systemActive)) [L654] CALL __utac_acc__Specification3_spec__1() [L938] int tmp ; [L939] int tmp___0 ; [L940] int tmp___1 ; [L944] CALL, EXPR isMethaneLevelCritical() [L882] int retValue_acc ; [L885] retValue_acc = methaneLevelCritical [L886] return (retValue_acc); [L944] RET, EXPR isMethaneLevelCritical() [L944] tmp = isMethaneLevelCritical() [L946] COND FALSE !(\read(tmp)) [L950] CALL, EXPR getWaterLevel() [L914] int retValue_acc ; [L917] retValue_acc = waterLevel [L918] return (retValue_acc); [L950] RET, EXPR getWaterLevel() [L950] tmp___0 = getWaterLevel() [L952] COND TRUE tmp___0 == 2 [L954] CALL, EXPR isPumpRunning() [L763] int retValue_acc ; [L766] retValue_acc = pumpRunning [L767] return (retValue_acc); [L954] RET, EXPR isPumpRunning() [L954] tmp___1 = isPumpRunning() [L956] COND FALSE !(\read(tmp___1)) [L960] CALL __automaton_fail() [L46] CALL reach_error() [L3] __assert_fail("0", "minepump_spec3_product47.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 652 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 24.4s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 18.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1341 SDtfs, 2101 SDslu, 1523 SDs, 0 SdLazy, 3914 SolverSat, 727 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 148 GetRequests, 104 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 6.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1158occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.6s AutomataMinimizationTime, 5 MinimizatonAttempts, 358 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...