/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 --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product07.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 23:57:04,945 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 23:57:04,948 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 23:57:04,983 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 23:57:04,984 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 23:57:04,986 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 23:57:04,987 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 23:57:04,990 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 23:57:04,992 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 23:57:04,993 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 23:57:04,994 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 23:57:04,996 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 23:57:04,996 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 23:57:04,998 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 23:57:04,999 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 23:57:05,000 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 23:57:05,001 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 23:57:05,003 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 23:57:05,005 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 23:57:05,007 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 23:57:05,009 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 23:57:05,011 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 23:57:05,012 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 23:57:05,013 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 23:57:05,034 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 23:57:05,035 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 23:57:05,035 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 23:57:05,037 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 23:57:05,037 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 23:57:05,039 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 23:57:05,039 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 23:57:05,043 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 23:57:05,045 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 23:57:05,048 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 23:57:05,050 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 23:57:05,052 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 23:57:05,053 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 23:57:05,053 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 23:57:05,054 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 23:57:05,055 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 23:57:05,056 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 23:57:05,059 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-23 23:57:05,085 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 23:57:05,085 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 23:57:05,088 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 23:57:05,088 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 23:57:05,088 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 23:57:05,089 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 23:57:05,089 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 23:57:05,089 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 23:57:05,089 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 23:57:05,089 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 23:57:05,090 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 23:57:05,090 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 23:57:05,092 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 23:57:05,092 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 23:57:05,092 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 23:57:05,092 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 23:57:05,092 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 23:57:05,093 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 23:57:05,093 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 23:57:05,093 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 23:57:05,093 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 23:57:05,093 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 23:57:05,094 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-10-23 23:57:05,473 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 23:57:05,512 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 23:57:05,515 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 23:57:05,516 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 23:57:05,517 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 23:57:05,518 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product07.cil.c [2020-10-23 23:57:05,603 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07aea69e6/0c75c3da60d748a1b9c4b1aa360eb837/FLAGef14d5aed [2020-10-23 23:57:06,415 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 23:57:06,415 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product07.cil.c [2020-10-23 23:57:06,442 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07aea69e6/0c75c3da60d748a1b9c4b1aa360eb837/FLAGef14d5aed [2020-10-23 23:57:06,691 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07aea69e6/0c75c3da60d748a1b9c4b1aa360eb837 [2020-10-23 23:57:06,695 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 23:57:06,704 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 23:57:06,710 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 23:57:06,710 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 23:57:06,714 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 23:57:06,715 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 11:57:06" (1/1) ... [2020-10-23 23:57:06,719 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18227538 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:57:06, skipping insertion in model container [2020-10-23 23:57:06,719 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 11:57:06" (1/1) ... [2020-10-23 23:57:06,728 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 23:57:06,801 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 23:57:07,097 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 23:57:07,109 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 23:57:07,211 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 23:57:07,253 INFO L208 MainTranslator]: Completed translation [2020-10-23 23:57:07,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:57:07 WrapperNode [2020-10-23 23:57:07,254 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 23:57:07,255 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 23:57:07,255 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 23:57:07,255 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 23:57:07,268 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:57:07" (1/1) ... [2020-10-23 23:57:07,269 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:57:07" (1/1) ... [2020-10-23 23:57:07,286 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:57:07" (1/1) ... [2020-10-23 23:57:07,287 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:57:07" (1/1) ... [2020-10-23 23:57:07,322 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:57:07" (1/1) ... [2020-10-23 23:57:07,332 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:57:07" (1/1) ... [2020-10-23 23:57:07,338 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:57:07" (1/1) ... [2020-10-23 23:57:07,346 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 23:57:07,347 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 23:57:07,347 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 23:57:07,347 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 23:57:07,348 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:57:07" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 23:57:07,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 23:57:07,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 23:57:07,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 23:57:07,428 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 23:57:07,428 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 23:57:07,429 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 23:57:07,429 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 23:57:07,429 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 23:57:07,429 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 23:57:07,429 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 23:57:07,430 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 23:57:07,430 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 23:57:07,430 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 23:57:07,430 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 23:57:07,430 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 23:57:07,430 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 23:57:07,431 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 23:57:07,431 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 23:57:07,431 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 23:57:07,431 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 23:57:07,431 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-23 23:57:07,432 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 23:57:07,432 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-23 23:57:07,432 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 23:57:07,432 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 23:57:07,432 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 23:57:07,433 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 23:57:07,433 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 23:57:07,433 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 23:57:07,433 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-23 23:57:07,433 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 23:57:07,434 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 23:57:07,434 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 23:57:07,434 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 23:57:07,434 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 23:57:07,434 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 23:57:07,435 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 23:57:07,435 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 23:57:07,435 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 23:57:07,435 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 23:57:07,435 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 23:57:07,436 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 23:57:07,436 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 23:57:07,436 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 23:57:07,436 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 23:57:07,436 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 23:57:07,437 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 23:57:07,437 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 23:57:07,437 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 23:57:07,437 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 23:57:07,437 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 23:57:07,437 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 23:57:07,438 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 23:57:07,438 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 23:57:07,438 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 23:57:07,438 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 23:57:07,438 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 23:57:07,438 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 23:57:07,439 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 23:57:07,439 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 23:57:07,439 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 23:57:07,439 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 23:57:07,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 23:57:07,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 23:57:07,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 23:57:07,440 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 23:57:07,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 23:57:07,440 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 23:57:07,440 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 23:57:07,440 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 23:57:07,440 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 23:57:07,441 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 23:57:07,441 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 23:57:07,441 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 23:57:07,441 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 23:57:07,441 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 23:57:07,441 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-23 23:57:07,442 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 23:57:07,442 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 23:57:07,442 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 23:57:07,442 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 23:57:07,442 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-23 23:57:07,442 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 23:57:07,442 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-23 23:57:07,443 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 23:57:07,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 23:57:07,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 23:57:07,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 23:57:08,824 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 23:57:08,825 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 23:57:08,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 11:57:08 BoogieIcfgContainer [2020-10-23 23:57:08,828 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 23:57:08,830 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 23:57:08,830 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 23:57:08,834 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 23:57:08,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 11:57:06" (1/3) ... [2020-10-23 23:57:08,835 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@176ccbc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 11:57:08, skipping insertion in model container [2020-10-23 23:57:08,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:57:07" (2/3) ... [2020-10-23 23:57:08,836 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@176ccbc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 11:57:08, skipping insertion in model container [2020-10-23 23:57:08,836 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 11:57:08" (3/3) ... [2020-10-23 23:57:08,838 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product07.cil.c [2020-10-23 23:57:08,850 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 23:57:08,856 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 23:57:08,870 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 23:57:08,896 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 23:57:08,896 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 23:57:08,896 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-23 23:57:08,896 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 23:57:08,896 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 23:57:08,896 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 23:57:08,897 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 23:57:08,897 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 23:57:08,920 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states. [2020-10-23 23:57:08,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-10-23 23:57:08,942 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:57:08,943 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] [2020-10-23 23:57:08,944 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 23:57:08,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:57:08,950 INFO L82 PathProgramCache]: Analyzing trace with hash -1692362436, now seen corresponding path program 1 times [2020-10-23 23:57:08,960 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:57:08,961 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1657681626] [2020-10-23 23:57:08,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:57:09,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:57:09,749 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:57:09,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:57:09,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:57:09,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:57:09,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:57:09,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:57:09,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:57:09,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:57:09,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:57:09,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:57:09,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:57:09,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 23:57:09,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:57:09,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 23:57:09,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:57:09,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-23 23:57:09,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:57:09,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 23:57:09,929 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1657681626] [2020-10-23 23:57:09,931 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:57:09,932 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 23:57:09,932 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917049441] [2020-10-23 23:57:09,938 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 23:57:09,939 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:57:09,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 23:57:09,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 23:57:09,958 INFO L87 Difference]: Start difference. First operand 290 states. Second operand 3 states. [2020-10-23 23:57:11,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:57:11,649 INFO L93 Difference]: Finished difference Result 437 states and 525 transitions. [2020-10-23 23:57:11,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 23:57:11,654 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2020-10-23 23:57:11,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:57:11,684 INFO L225 Difference]: With dead ends: 437 [2020-10-23 23:57:11,685 INFO L226 Difference]: Without dead ends: 277 [2020-10-23 23:57:11,690 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 23:57:11,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2020-10-23 23:57:11,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 236. [2020-10-23 23:57:11,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2020-10-23 23:57:11,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 256 transitions. [2020-10-23 23:57:11,863 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 256 transitions. Word has length 159 [2020-10-23 23:57:11,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:57:11,864 INFO L481 AbstractCegarLoop]: Abstraction has 236 states and 256 transitions. [2020-10-23 23:57:11,864 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 23:57:11,864 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 256 transitions. [2020-10-23 23:57:11,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-10-23 23:57:11,869 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:57:11,869 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] [2020-10-23 23:57:11,870 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 23:57:11,870 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 23:57:11,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:57:11,871 INFO L82 PathProgramCache]: Analyzing trace with hash 775410232, now seen corresponding path program 1 times [2020-10-23 23:57:11,871 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:57:11,872 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2129833324] [2020-10-23 23:57:11,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:57:11,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:57:12,382 WARN L193 SmtUtils]: Spent 385.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:57:12,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:57:12,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:57:12,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:57:12,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:57:12,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:57:12,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:57:12,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:57:12,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:57:12,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:57:12,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:57:12,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-23 23:57:12,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:57:12,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-23 23:57:12,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:57:12,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-23 23:57:12,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:57:12,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 23:57:12,481 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2129833324] [2020-10-23 23:57:12,482 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:57:12,482 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 23:57:12,482 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686805492] [2020-10-23 23:57:12,484 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 23:57:12,484 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:57:12,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 23:57:12,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 23:57:12,485 INFO L87 Difference]: Start difference. First operand 236 states and 256 transitions. Second operand 4 states. [2020-10-23 23:57:13,289 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:57:14,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:57:14,270 INFO L93 Difference]: Finished difference Result 345 states and 388 transitions. [2020-10-23 23:57:14,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 23:57:14,271 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-10-23 23:57:14,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:57:14,275 INFO L225 Difference]: With dead ends: 345 [2020-10-23 23:57:14,276 INFO L226 Difference]: Without dead ends: 260 [2020-10-23 23:57:14,278 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-23 23:57:14,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2020-10-23 23:57:14,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 226. [2020-10-23 23:57:14,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-10-23 23:57:14,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 243 transitions. [2020-10-23 23:57:14,366 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 243 transitions. Word has length 160 [2020-10-23 23:57:14,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:57:14,366 INFO L481 AbstractCegarLoop]: Abstraction has 226 states and 243 transitions. [2020-10-23 23:57:14,367 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 23:57:14,367 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 243 transitions. [2020-10-23 23:57:14,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-10-23 23:57:14,369 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:57:14,369 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] [2020-10-23 23:57:14,369 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 23:57:14,370 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 23:57:14,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:57:14,370 INFO L82 PathProgramCache]: Analyzing trace with hash -77366894, now seen corresponding path program 1 times [2020-10-23 23:57:14,371 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:57:14,371 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [107477865] [2020-10-23 23:57:14,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:57:14,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:57:14,833 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:57:14,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:57:14,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:57:14,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:57:14,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:57:14,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:57:14,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:57:14,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:57:14,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:57:15,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:57:15,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:57:15,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 23:57:15,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:57:15,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-23 23:57:15,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:57:15,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-10-23 23:57:15,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:57:15,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 23:57:15,174 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [107477865] [2020-10-23 23:57:15,174 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:57:15,175 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-23 23:57:15,175 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579637486] [2020-10-23 23:57:15,176 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 23:57:15,177 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:57:15,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 23:57:15,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-23 23:57:15,178 INFO L87 Difference]: Start difference. First operand 226 states and 243 transitions. Second operand 9 states. [2020-10-23 23:57:15,887 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:57:16,383 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 23:57:16,802 WARN L193 SmtUtils]: Spent 395.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 23:57:17,248 WARN L193 SmtUtils]: Spent 397.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:57:17,671 WARN L193 SmtUtils]: Spent 392.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:57:18,093 WARN L193 SmtUtils]: Spent 395.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:57:19,481 WARN L193 SmtUtils]: Spent 419.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:57:21,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:57:21,817 INFO L93 Difference]: Finished difference Result 587 states and 677 transitions. [2020-10-23 23:57:21,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-23 23:57:21,818 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 169 [2020-10-23 23:57:21,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:57:21,824 INFO L225 Difference]: With dead ends: 587 [2020-10-23 23:57:21,824 INFO L226 Difference]: Without dead ends: 476 [2020-10-23 23:57:21,826 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-10-23 23:57:21,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2020-10-23 23:57:22,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 411. [2020-10-23 23:57:22,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 411 states. [2020-10-23 23:57:22,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 460 transitions. [2020-10-23 23:57:22,039 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 460 transitions. Word has length 169 [2020-10-23 23:57:22,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:57:22,040 INFO L481 AbstractCegarLoop]: Abstraction has 411 states and 460 transitions. [2020-10-23 23:57:22,040 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 23:57:22,040 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 460 transitions. [2020-10-23 23:57:22,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-10-23 23:57:22,043 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:57:22,043 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] [2020-10-23 23:57:22,044 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 23:57:22,044 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 23:57:22,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:57:22,045 INFO L82 PathProgramCache]: Analyzing trace with hash 1667398475, now seen corresponding path program 1 times [2020-10-23 23:57:22,045 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:57:22,045 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [651619132] [2020-10-23 23:57:22,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:57:22,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:57:22,525 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:57:22,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:57:22,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:57:22,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:57:22,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:57:22,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:57:22,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:57:22,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:57:22,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:57:22,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:57:22,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:57:22,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-23 23:57:22,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:57:22,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:57:22,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:57:22,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-23 23:57:22,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:57:22,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-23 23:57:22,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:57:22,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-10-23 23:57:22,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:57:22,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 23:57:22,761 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [651619132] [2020-10-23 23:57:22,761 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:57:22,761 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-23 23:57:22,761 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705268528] [2020-10-23 23:57:22,762 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 23:57:22,762 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:57:22,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 23:57:22,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-23 23:57:22,764 INFO L87 Difference]: Start difference. First operand 411 states and 460 transitions. Second operand 9 states. [2020-10-23 23:57:23,471 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:57:25,818 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:57:26,248 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:57:26,664 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:57:27,098 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:57:27,508 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:57:27,920 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:57:28,336 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:57:29,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:57:29,181 INFO L93 Difference]: Finished difference Result 1169 states and 1460 transitions. [2020-10-23 23:57:29,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-23 23:57:29,182 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 177 [2020-10-23 23:57:29,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:57:29,191 INFO L225 Difference]: With dead ends: 1169 [2020-10-23 23:57:29,191 INFO L226 Difference]: Without dead ends: 873 [2020-10-23 23:57:29,195 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-10-23 23:57:29,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2020-10-23 23:57:29,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 685. [2020-10-23 23:57:29,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 685 states. [2020-10-23 23:57:29,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 685 states to 685 states and 791 transitions. [2020-10-23 23:57:29,574 INFO L78 Accepts]: Start accepts. Automaton has 685 states and 791 transitions. Word has length 177 [2020-10-23 23:57:29,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:57:29,575 INFO L481 AbstractCegarLoop]: Abstraction has 685 states and 791 transitions. [2020-10-23 23:57:29,575 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 23:57:29,575 INFO L276 IsEmpty]: Start isEmpty. Operand 685 states and 791 transitions. [2020-10-23 23:57:29,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-10-23 23:57:29,579 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:57:29,580 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] [2020-10-23 23:57:29,580 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 23:57:29,580 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 23:57:29,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:57:29,581 INFO L82 PathProgramCache]: Analyzing trace with hash -586489102, now seen corresponding path program 1 times [2020-10-23 23:57:29,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:57:29,581 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1422421656] [2020-10-23 23:57:29,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:57:29,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:57:29,972 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:57:29,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:57:29,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:57:30,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:57:30,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:57:30,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:57:30,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:57:30,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:57:30,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:57:30,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:57:30,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:57:30,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-10-23 23:57:30,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:57:30,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-23 23:57:30,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:57:30,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:57:30,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:57:30,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-23 23:57:30,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:57:30,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-10-23 23:57:30,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:57:30,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-10-23 23:57:30,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:57:30,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 23:57:30,119 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1422421656] [2020-10-23 23:57:30,120 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:57:30,120 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 23:57:30,120 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294042440] [2020-10-23 23:57:30,121 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-23 23:57:30,121 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:57:30,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-23 23:57:30,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-23 23:57:30,122 INFO L87 Difference]: Start difference. First operand 685 states and 791 transitions. Second operand 6 states. [2020-10-23 23:57:30,746 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:57:31,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:57:31,772 INFO L93 Difference]: Finished difference Result 1148 states and 1363 transitions. [2020-10-23 23:57:31,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-23 23:57:31,773 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 182 [2020-10-23 23:57:31,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:57:31,778 INFO L225 Difference]: With dead ends: 1148 [2020-10-23 23:57:31,778 INFO L226 Difference]: Without dead ends: 578 [2020-10-23 23:57:31,781 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-10-23 23:57:31,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2020-10-23 23:57:32,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 548. [2020-10-23 23:57:32,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 548 states. [2020-10-23 23:57:32,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 599 transitions. [2020-10-23 23:57:32,040 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 599 transitions. Word has length 182 [2020-10-23 23:57:32,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:57:32,040 INFO L481 AbstractCegarLoop]: Abstraction has 548 states and 599 transitions. [2020-10-23 23:57:32,040 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-23 23:57:32,041 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 599 transitions. [2020-10-23 23:57:32,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-10-23 23:57:32,044 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:57:32,044 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] [2020-10-23 23:57:32,044 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 23:57:32,045 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 23:57:32,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:57:32,045 INFO L82 PathProgramCache]: Analyzing trace with hash 449492440, now seen corresponding path program 1 times [2020-10-23 23:57:32,045 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:57:32,046 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [370877507] [2020-10-23 23:57:32,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:57:32,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 23:57:32,127 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 23:57:32,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 23:57:32,202 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 23:57:32,427 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 23:57:32,427 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 23:57:32,427 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-23 23:57:32,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 11:57:32 BoogieIcfgContainer [2020-10-23 23:57:32,722 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 23:57:32,725 INFO L168 Benchmark]: Toolchain (without parser) took 26025.85 ms. Allocated memory was 158.3 MB in the beginning and 526.4 MB in the end (delta: 368.1 MB). Free memory was 134.3 MB in the beginning and 394.0 MB in the end (delta: -259.7 MB). Peak memory consumption was 109.7 MB. Max. memory is 8.0 GB. [2020-10-23 23:57:32,726 INFO L168 Benchmark]: CDTParser took 0.94 ms. Allocated memory is still 158.3 MB. Free memory is still 132.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 23:57:32,732 INFO L168 Benchmark]: CACSL2BoogieTranslator took 543.97 ms. Allocated memory is still 158.3 MB. Free memory was 133.6 MB in the beginning and 113.5 MB in the end (delta: 20.1 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2020-10-23 23:57:32,734 INFO L168 Benchmark]: Boogie Preprocessor took 91.28 ms. Allocated memory is still 158.3 MB. Free memory was 113.5 MB in the beginning and 109.7 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-23 23:57:32,735 INFO L168 Benchmark]: RCFGBuilder took 1481.45 ms. Allocated memory was 158.3 MB in the beginning and 204.5 MB in the end (delta: 46.1 MB). Free memory was 109.7 MB in the beginning and 181.3 MB in the end (delta: -71.7 MB). Peak memory consumption was 60.2 MB. Max. memory is 8.0 GB. [2020-10-23 23:57:32,736 INFO L168 Benchmark]: TraceAbstraction took 23891.39 ms. Allocated memory was 204.5 MB in the beginning and 526.4 MB in the end (delta: 321.9 MB). Free memory was 181.3 MB in the beginning and 394.0 MB in the end (delta: -212.6 MB). Peak memory consumption was 109.3 MB. Max. memory is 8.0 GB. [2020-10-23 23:57:32,747 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.94 ms. Allocated memory is still 158.3 MB. Free memory is still 132.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 543.97 ms. Allocated memory is still 158.3 MB. Free memory was 133.6 MB in the beginning and 113.5 MB in the end (delta: 20.1 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 91.28 ms. Allocated memory is still 158.3 MB. Free memory was 113.5 MB in the beginning and 109.7 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1481.45 ms. Allocated memory was 158.3 MB in the beginning and 204.5 MB in the end (delta: 46.1 MB). Free memory was 109.7 MB in the beginning and 181.3 MB in the end (delta: -71.7 MB). Peak memory consumption was 60.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 23891.39 ms. Allocated memory was 204.5 MB in the beginning and 526.4 MB in the end (delta: 321.9 MB). Free memory was 181.3 MB in the beginning and 394.0 MB in the end (delta: -212.6 MB). Peak memory consumption was 109.3 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: [L89] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=180, \old(head)=168, \old(head)=182, \old(methaneLevelCritical)=151, \old(pumpRunning)=140, \old(systemActive)=139, \old(waterLevel)=144, cleanupTimeShifts=4, head={182:168}, methaneLevelCritical=151, pumpRunning=140, systemActive=139, waterLevel=144] [L359] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=180, \old(head)=168, \old(head)=182, \old(methaneLevelCritical)=151, \old(pumpRunning)=140, \old(systemActive)=139, \old(waterLevel)=144, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=151, pumpRunning=140, systemActive=139, waterLevel=144] [L598] int pumpRunning = 0; VAL [\old(cleanupTimeShifts)=180, \old(head)=182, \old(head)=168, \old(methaneLevelCritical)=151, \old(pumpRunning)=140, \old(systemActive)=139, \old(waterLevel)=144, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=151, pumpRunning=0, systemActive=139, waterLevel=144] [L599] int systemActive = 1; VAL [\old(cleanupTimeShifts)=180, \old(head)=182, \old(head)=168, \old(methaneLevelCritical)=151, \old(pumpRunning)=140, \old(systemActive)=139, \old(waterLevel)=144, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=151, pumpRunning=0, systemActive=1, waterLevel=144] [L813] int waterLevel = 1; VAL [\old(cleanupTimeShifts)=180, \old(head)=182, \old(head)=168, \old(methaneLevelCritical)=151, \old(pumpRunning)=140, \old(systemActive)=139, \old(waterLevel)=144, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=151, pumpRunning=0, systemActive=1, waterLevel=1] [L814] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=180, \old(head)=168, \old(head)=182, \old(methaneLevelCritical)=151, \old(pumpRunning)=140, \old(systemActive)=139, \old(waterLevel)=144, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L167] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L168] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L172] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L173] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L174] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L80] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L83] retValue_acc = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L84] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L174] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L174] tmp = valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, valid_product()=1, waterLevel=1] [L176] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L178] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L179] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L161] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L747] int splverifierCounter ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L748] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L749] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L750] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L751] int tmp___2 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L754] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L756] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L758] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L764] tmp = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L766] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L768] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L831] COND TRUE waterLevel < 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L832] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L768] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L774] tmp___0 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L776] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L784] tmp___2 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L786] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L801] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L605] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L612] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L614] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L634] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L637] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L652] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L614] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L620] CALL __utac_acc__Specification3_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L560] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L561] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L562] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L566] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L852] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L855] retValue_acc = methaneLevelCritical VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L856] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L566] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L566] tmp = isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L568] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L572] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L884] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L887] retValue_acc = waterLevel VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=1, waterLevel=2] [L888] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=1, waterLevel=2] [L572] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L572] tmp___0 = getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L574] COND TRUE tmp___0 == 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L576] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L686] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L689] retValue_acc = pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L690] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L576] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L576] tmp___1 = isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L578] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L582] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L46] CALL reach_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L3] __assert_fail("0", "minepump_spec3_product07.cil.c", 3, "reach_error") VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 37 procedures, 609 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 23.5s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 18.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1088 SDtfs, 1656 SDslu, 1390 SDs, 0 SdLazy, 2859 SolverSat, 580 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 150 GetRequests, 106 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 8.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=685occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 358 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 1029 NumberOfCodeBlocks, 1029 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 842 ConstructedInterpolants, 0 QuantifiedInterpolants, 367192 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, 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...