/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_product39.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 23:59:09,930 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 23:59:09,933 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 23:59:09,973 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 23:59:09,974 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 23:59:09,976 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 23:59:09,977 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 23:59:09,980 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 23:59:09,982 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 23:59:09,983 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 23:59:09,985 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 23:59:09,986 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 23:59:09,987 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 23:59:09,988 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 23:59:09,989 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 23:59:09,991 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 23:59:09,992 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 23:59:09,993 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 23:59:09,995 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 23:59:09,998 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 23:59:10,000 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 23:59:10,002 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 23:59:10,004 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 23:59:10,008 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 23:59:10,014 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 23:59:10,014 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 23:59:10,015 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 23:59:10,018 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 23:59:10,021 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 23:59:10,023 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 23:59:10,024 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 23:59:10,025 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 23:59:10,027 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 23:59:10,028 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 23:59:10,032 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 23:59:10,032 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 23:59:10,033 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 23:59:10,033 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 23:59:10,034 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 23:59:10,035 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 23:59:10,035 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 23:59:10,037 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 23:59:10,060 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 23:59:10,060 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 23:59:10,065 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 23:59:10,066 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 23:59:10,066 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 23:59:10,066 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 23:59:10,066 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 23:59:10,066 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 23:59:10,067 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 23:59:10,067 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 23:59:10,068 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 23:59:10,068 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 23:59:10,068 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 23:59:10,068 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 23:59:10,069 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 23:59:10,069 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 23:59:10,069 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 23:59:10,069 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 23:59:10,069 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 23:59:10,070 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 23:59:10,070 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 23:59:10,070 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 23:59:10,070 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-10-23 23:59:10,487 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 23:59:10,520 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 23:59:10,523 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 23:59:10,525 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 23:59:10,525 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 23:59:10,526 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product39.cil.c [2020-10-23 23:59:10,620 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5f4586bf/f8f85f5b22ff4f3ca61f95cffcc26682/FLAG23a598b83 [2020-10-23 23:59:11,429 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 23:59:11,429 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product39.cil.c [2020-10-23 23:59:11,452 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5f4586bf/f8f85f5b22ff4f3ca61f95cffcc26682/FLAG23a598b83 [2020-10-23 23:59:11,685 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5f4586bf/f8f85f5b22ff4f3ca61f95cffcc26682 [2020-10-23 23:59:11,688 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 23:59:11,695 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 23:59:11,697 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 23:59:11,697 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 23:59:11,706 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 23:59:11,707 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 11:59:11" (1/1) ... [2020-10-23 23:59:11,716 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69295d4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:59:11, skipping insertion in model container [2020-10-23 23:59:11,716 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 11:59:11" (1/1) ... [2020-10-23 23:59:11,726 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 23:59:11,796 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 23:59:12,111 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 23:59:12,135 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 23:59:12,259 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 23:59:12,334 INFO L208 MainTranslator]: Completed translation [2020-10-23 23:59:12,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:59:12 WrapperNode [2020-10-23 23:59:12,334 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 23:59:12,336 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 23:59:12,336 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 23:59:12,336 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 23:59:12,349 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:59:12" (1/1) ... [2020-10-23 23:59:12,350 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:59:12" (1/1) ... [2020-10-23 23:59:12,367 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:59:12" (1/1) ... [2020-10-23 23:59:12,368 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:59:12" (1/1) ... [2020-10-23 23:59:12,403 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:59:12" (1/1) ... [2020-10-23 23:59:12,415 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:59:12" (1/1) ... [2020-10-23 23:59:12,421 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:59:12" (1/1) ... [2020-10-23 23:59:12,429 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 23:59:12,430 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 23:59:12,431 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 23:59:12,431 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 23:59:12,432 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:59:12" (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 23:59:12,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 23:59:12,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 23:59:12,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 23:59:12,509 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 23:59:12,510 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 23:59:12,510 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 23:59:12,510 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 23:59:12,511 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 23:59:12,511 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 23:59:12,511 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 23:59:12,511 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 23:59:12,512 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 23:59:12,512 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 23:59:12,512 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 23:59:12,513 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-23 23:59:12,513 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 23:59:12,513 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-23 23:59:12,514 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-10-23 23:59:12,514 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 23:59:12,515 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 23:59:12,515 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 23:59:12,515 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 23:59:12,519 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 23:59:12,519 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 23:59:12,520 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-23 23:59:12,520 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-23 23:59:12,520 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 23:59:12,520 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 23:59:12,520 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 23:59:12,521 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 23:59:12,521 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 23:59:12,521 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 23:59:12,521 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 23:59:12,521 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 23:59:12,521 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 23:59:12,522 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 23:59:12,522 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 23:59:12,522 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 23:59:12,522 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 23:59:12,522 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-23 23:59:12,522 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 23:59:12,523 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 23:59:12,523 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 23:59:12,523 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 23:59:12,523 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 23:59:12,523 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 23:59:12,523 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 23:59:12,524 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 23:59:12,524 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 23:59:12,524 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 23:59:12,524 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 23:59:12,524 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 23:59:12,525 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 23:59:12,525 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 23:59:12,525 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 23:59:12,525 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 23:59:12,525 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-23 23:59:12,525 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 23:59:12,526 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 23:59:12,526 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 23:59:12,526 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 23:59:12,526 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 23:59:12,526 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-23 23:59:12,526 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-23 23:59:12,527 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 23:59:12,527 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-23 23:59:12,527 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-23 23:59:12,527 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-10-23 23:59:12,527 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 23:59:12,528 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 23:59:12,528 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 23:59:12,528 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 23:59:12,529 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 23:59:12,529 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 23:59:12,529 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 23:59:12,529 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 23:59:12,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 23:59:12,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 23:59:12,530 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 23:59:12,530 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 23:59:12,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 23:59:12,531 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 23:59:12,531 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 23:59:12,532 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 23:59:12,533 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 23:59:12,533 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 23:59:12,533 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 23:59:12,534 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 23:59:12,535 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 23:59:12,535 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 23:59:12,536 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 23:59:12,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 23:59:12,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 23:59:12,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 23:59:13,952 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 23:59:13,952 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 23:59:13,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 11:59:13 BoogieIcfgContainer [2020-10-23 23:59:13,955 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 23:59:13,977 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 23:59:13,977 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 23:59:13,981 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 23:59:13,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 11:59:11" (1/3) ... [2020-10-23 23:59:13,986 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dd8e341 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 11:59:13, skipping insertion in model container [2020-10-23 23:59:13,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:59:12" (2/3) ... [2020-10-23 23:59:13,987 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dd8e341 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 11:59:13, skipping insertion in model container [2020-10-23 23:59:13,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 11:59:13" (3/3) ... [2020-10-23 23:59:13,989 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product39.cil.c [2020-10-23 23:59:14,005 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 23:59:14,011 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 23:59:14,025 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 23:59:14,050 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 23:59:14,050 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 23:59:14,051 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-23 23:59:14,051 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 23:59:14,051 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 23:59:14,051 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 23:59:14,051 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 23:59:14,051 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 23:59:14,076 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states. [2020-10-23 23:59:14,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-10-23 23:59:14,098 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:59:14,099 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 23:59:14,100 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 23:59:14,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:59:14,107 INFO L82 PathProgramCache]: Analyzing trace with hash 133257542, now seen corresponding path program 1 times [2020-10-23 23:59:14,119 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:59:14,120 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2067569324] [2020-10-23 23:59:14,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:59:14,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:14,843 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:59:14,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:59:14,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:14,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:59:14,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:14,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:59:14,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:14,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:59:14,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:14,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:59:14,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:14,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 23:59:14,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:14,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 23:59:14,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:14,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-23 23:59:14,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:15,037 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 23:59:15,040 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2067569324] [2020-10-23 23:59:15,043 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:59:15,044 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 23:59:15,053 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185922763] [2020-10-23 23:59:15,060 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 23:59:15,061 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:59:15,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 23:59:15,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 23:59:15,077 INFO L87 Difference]: Start difference. First operand 327 states. Second operand 3 states. [2020-10-23 23:59:16,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:59:16,962 INFO L93 Difference]: Finished difference Result 513 states and 612 transitions. [2020-10-23 23:59:16,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 23:59:16,964 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2020-10-23 23:59:16,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:59:16,983 INFO L225 Difference]: With dead ends: 513 [2020-10-23 23:59:16,984 INFO L226 Difference]: Without dead ends: 316 [2020-10-23 23:59:16,990 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 23:59:17,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2020-10-23 23:59:17,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 273. [2020-10-23 23:59:17,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 273 states. [2020-10-23 23:59:17,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 298 transitions. [2020-10-23 23:59:17,217 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 298 transitions. Word has length 159 [2020-10-23 23:59:17,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:59:17,221 INFO L481 AbstractCegarLoop]: Abstraction has 273 states and 298 transitions. [2020-10-23 23:59:17,221 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 23:59:17,221 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 298 transitions. [2020-10-23 23:59:17,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-10-23 23:59:17,239 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:59:17,239 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 23:59:17,240 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 23:59:17,242 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 23:59:17,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:59:17,244 INFO L82 PathProgramCache]: Analyzing trace with hash -1164170780, now seen corresponding path program 1 times [2020-10-23 23:59:17,244 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:59:17,244 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1630366262] [2020-10-23 23:59:17,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:59:17,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:17,867 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:59:17,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:59:17,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:17,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:59:17,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:17,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:59:17,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:17,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:59:17,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:17,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:59:17,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:17,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-23 23:59:18,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:18,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-23 23:59:18,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:18,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-23 23:59:18,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:18,063 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 23:59:18,064 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1630366262] [2020-10-23 23:59:18,064 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:59:18,064 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 23:59:18,064 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813774278] [2020-10-23 23:59:18,067 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 23:59:18,069 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:59:18,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 23:59:18,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 23:59:18,070 INFO L87 Difference]: Start difference. First operand 273 states and 298 transitions. Second operand 4 states. [2020-10-23 23:59:18,955 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:59:20,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:59:20,350 INFO L93 Difference]: Finished difference Result 421 states and 475 transitions. [2020-10-23 23:59:20,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 23:59:20,351 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-10-23 23:59:20,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:59:20,357 INFO L225 Difference]: With dead ends: 421 [2020-10-23 23:59:20,357 INFO L226 Difference]: Without dead ends: 299 [2020-10-23 23:59:20,359 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 23:59:20,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2020-10-23 23:59:20,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 263. [2020-10-23 23:59:20,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 263 states. [2020-10-23 23:59:20,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 285 transitions. [2020-10-23 23:59:20,460 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 285 transitions. Word has length 160 [2020-10-23 23:59:20,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:59:20,461 INFO L481 AbstractCegarLoop]: Abstraction has 263 states and 285 transitions. [2020-10-23 23:59:20,461 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 23:59:20,461 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 285 transitions. [2020-10-23 23:59:20,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-10-23 23:59:20,464 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:59:20,464 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 23:59:20,465 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 23:59:20,465 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 23:59:20,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:59:20,466 INFO L82 PathProgramCache]: Analyzing trace with hash 775445239, now seen corresponding path program 1 times [2020-10-23 23:59:20,466 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:59:20,466 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2034375690] [2020-10-23 23:59:20,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:59:20,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:20,981 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:59:20,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:59:21,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:21,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:59:21,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:21,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:59:21,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:21,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:59:21,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:21,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:59:21,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:21,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 23:59:21,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:21,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-23 23:59:21,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:21,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-10-23 23:59:21,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:21,178 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 23:59:21,178 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2034375690] [2020-10-23 23:59:21,179 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:59:21,179 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-23 23:59:21,179 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987141977] [2020-10-23 23:59:21,180 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 23:59:21,180 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:59:21,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 23:59:21,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-23 23:59:21,181 INFO L87 Difference]: Start difference. First operand 263 states and 285 transitions. Second operand 9 states. [2020-10-23 23:59:21,966 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:59:22,453 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 23:59:22,856 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 23:59:23,229 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:59:23,624 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:59:24,010 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:59:25,195 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:59:28,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:59:28,150 INFO L93 Difference]: Finished difference Result 702 states and 809 transitions. [2020-10-23 23:59:28,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-23 23:59:28,153 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 169 [2020-10-23 23:59:28,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:59:28,158 INFO L225 Difference]: With dead ends: 702 [2020-10-23 23:59:28,158 INFO L226 Difference]: Without dead ends: 554 [2020-10-23 23:59:28,164 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-10-23 23:59:28,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2020-10-23 23:59:28,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 485. [2020-10-23 23:59:28,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 485 states. [2020-10-23 23:59:28,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 544 transitions. [2020-10-23 23:59:28,465 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 544 transitions. Word has length 169 [2020-10-23 23:59:28,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:59:28,467 INFO L481 AbstractCegarLoop]: Abstraction has 485 states and 544 transitions. [2020-10-23 23:59:28,467 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 23:59:28,467 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 544 transitions. [2020-10-23 23:59:28,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-10-23 23:59:28,474 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:59:28,475 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 23:59:28,475 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 23:59:28,475 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 23:59:28,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:59:28,476 INFO L82 PathProgramCache]: Analyzing trace with hash 941449922, now seen corresponding path program 1 times [2020-10-23 23:59:28,476 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:59:28,478 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [586523328] [2020-10-23 23:59:28,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:59:28,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:28,985 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:59:28,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:59:29,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:29,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:59:29,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:29,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:59:29,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:29,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:59:29,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:29,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:59:29,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:29,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-23 23:59:29,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:29,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-23 23:59:29,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:29,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-10-23 23:59:29,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:29,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-10-23 23:59:29,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:29,160 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 23:59:29,160 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [586523328] [2020-10-23 23:59:29,160 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:59:29,160 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-23 23:59:29,161 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384801638] [2020-10-23 23:59:29,162 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 23:59:29,162 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:59:29,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 23:59:29,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-23 23:59:29,165 INFO L87 Difference]: Start difference. First operand 485 states and 544 transitions. Second operand 9 states. [2020-10-23 23:59:29,812 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:59:32,201 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:59:32,602 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:59:33,018 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:59:33,501 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:59:33,908 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:59:34,279 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:59:34,643 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:59:35,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:59:35,612 INFO L93 Difference]: Finished difference Result 1303 states and 1574 transitions. [2020-10-23 23:59:35,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-23 23:59:35,613 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 178 [2020-10-23 23:59:35,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:59:35,621 INFO L225 Difference]: With dead ends: 1303 [2020-10-23 23:59:35,622 INFO L226 Difference]: Without dead ends: 933 [2020-10-23 23:59:35,624 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-10-23 23:59:35,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 933 states. [2020-10-23 23:59:35,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 933 to 833. [2020-10-23 23:59:35,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 833 states. [2020-10-23 23:59:35,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 833 states to 833 states and 959 transitions. [2020-10-23 23:59:35,998 INFO L78 Accepts]: Start accepts. Automaton has 833 states and 959 transitions. Word has length 178 [2020-10-23 23:59:35,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:59:35,998 INFO L481 AbstractCegarLoop]: Abstraction has 833 states and 959 transitions. [2020-10-23 23:59:35,999 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 23:59:35,999 INFO L276 IsEmpty]: Start isEmpty. Operand 833 states and 959 transitions. [2020-10-23 23:59:36,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-10-23 23:59:36,004 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:59:36,004 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 23:59:36,005 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 23:59:36,005 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 23:59:36,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:59:36,006 INFO L82 PathProgramCache]: Analyzing trace with hash 481233879, now seen corresponding path program 1 times [2020-10-23 23:59:36,006 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:59:36,006 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1136236508] [2020-10-23 23:59:36,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:59:36,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:36,376 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:59:36,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:59:36,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:36,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:59:36,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:36,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:59:36,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:36,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:59:36,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:36,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:59:36,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:36,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-23 23:59:36,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:36,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-23 23:59:36,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:36,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-23 23:59:36,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:36,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-10-23 23:59:36,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:36,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2020-10-23 23:59:36,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:36,576 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 23:59:36,577 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1136236508] [2020-10-23 23:59:36,577 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:59:36,577 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 23:59:36,577 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005152935] [2020-10-23 23:59:36,578 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-23 23:59:36,578 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:59:36,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-23 23:59:36,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-23 23:59:36,579 INFO L87 Difference]: Start difference. First operand 833 states and 959 transitions. Second operand 6 states. [2020-10-23 23:59:37,158 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:59:39,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:59:39,553 INFO L93 Difference]: Finished difference Result 1898 states and 2292 transitions. [2020-10-23 23:59:39,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-23 23:59:39,562 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 183 [2020-10-23 23:59:39,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:59:39,570 INFO L225 Difference]: With dead ends: 1898 [2020-10-23 23:59:39,570 INFO L226 Difference]: Without dead ends: 1180 [2020-10-23 23:59:39,574 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-10-23 23:59:39,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1180 states. [2020-10-23 23:59:40,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1180 to 1082. [2020-10-23 23:59:40,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1082 states. [2020-10-23 23:59:40,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1082 states to 1082 states and 1237 transitions. [2020-10-23 23:59:40,056 INFO L78 Accepts]: Start accepts. Automaton has 1082 states and 1237 transitions. Word has length 183 [2020-10-23 23:59:40,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:59:40,056 INFO L481 AbstractCegarLoop]: Abstraction has 1082 states and 1237 transitions. [2020-10-23 23:59:40,056 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-23 23:59:40,056 INFO L276 IsEmpty]: Start isEmpty. Operand 1082 states and 1237 transitions. [2020-10-23 23:59:40,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-10-23 23:59:40,060 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:59:40,061 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 23:59:40,061 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 23:59:40,061 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 23:59:40,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:59:40,062 INFO L82 PathProgramCache]: Analyzing trace with hash -1240405268, now seen corresponding path program 1 times [2020-10-23 23:59:40,062 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:59:40,062 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [747806620] [2020-10-23 23:59:40,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:59:40,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 23:59:40,141 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 23:59:40,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 23:59:40,213 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 23:59:40,424 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 23:59:40,424 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 23:59:40,424 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-23 23:59:40,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 11:59:40 BoogieIcfgContainer [2020-10-23 23:59:40,693 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 23:59:40,695 INFO L168 Benchmark]: Toolchain (without parser) took 29004.98 ms. Allocated memory was 125.8 MB in the beginning and 589.3 MB in the end (delta: 463.5 MB). Free memory was 101.5 MB in the beginning and 327.4 MB in the end (delta: -225.9 MB). Peak memory consumption was 237.9 MB. Max. memory is 8.0 GB. [2020-10-23 23:59:40,696 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 125.8 MB. Free memory is still 98.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 23:59:40,697 INFO L168 Benchmark]: CACSL2BoogieTranslator took 637.80 ms. Allocated memory was 125.8 MB in the beginning and 155.2 MB in the end (delta: 29.4 MB). Free memory was 100.9 MB in the beginning and 134.5 MB in the end (delta: -33.6 MB). Peak memory consumption was 23.5 MB. Max. memory is 8.0 GB. [2020-10-23 23:59:40,698 INFO L168 Benchmark]: Boogie Preprocessor took 93.93 ms. Allocated memory is still 155.2 MB. Free memory was 134.5 MB in the beginning and 130.7 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-10-23 23:59:40,699 INFO L168 Benchmark]: RCFGBuilder took 1525.07 ms. Allocated memory is still 155.2 MB. Free memory was 130.4 MB in the beginning and 62.0 MB in the end (delta: 68.3 MB). Peak memory consumption was 68.7 MB. Max. memory is 8.0 GB. [2020-10-23 23:59:40,699 INFO L168 Benchmark]: TraceAbstraction took 26716.85 ms. Allocated memory was 155.2 MB in the beginning and 589.3 MB in the end (delta: 434.1 MB). Free memory was 134.2 MB in the beginning and 327.4 MB in the end (delta: -193.3 MB). Peak memory consumption was 240.4 MB. Max. memory is 8.0 GB. [2020-10-23 23:59:40,703 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 125.8 MB. Free memory is still 98.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 637.80 ms. Allocated memory was 125.8 MB in the beginning and 155.2 MB in the end (delta: 29.4 MB). Free memory was 100.9 MB in the beginning and 134.5 MB in the end (delta: -33.6 MB). Peak memory consumption was 23.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 93.93 ms. Allocated memory is still 155.2 MB. Free memory was 134.5 MB in the beginning and 130.7 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1525.07 ms. Allocated memory is still 155.2 MB. Free memory was 130.4 MB in the beginning and 62.0 MB in the end (delta: 68.3 MB). Peak memory consumption was 68.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 26716.85 ms. Allocated memory was 155.2 MB in the beginning and 589.3 MB in the end (delta: 434.1 MB). Free memory was 134.2 MB in the beginning and 327.4 MB in the end (delta: -193.3 MB). Peak memory consumption was 240.4 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L87] int waterLevel = 1; VAL [\old(cleanupTimeShifts)=176, \old(head)=182, \old(head)=165, \old(methaneLevelCritical)=146, \old(pumpRunning)=139, \old(systemActive)=138, \old(waterLevel)=143, cleanupTimeShifts=176, head={182:165}, methaneLevelCritical=146, pumpRunning=139, systemActive=138, waterLevel=1] [L88] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=176, \old(head)=182, \old(head)=165, \old(methaneLevelCritical)=146, \old(pumpRunning)=139, \old(systemActive)=138, \old(waterLevel)=143, cleanupTimeShifts=176, head={182:165}, methaneLevelCritical=0, pumpRunning=139, systemActive=138, waterLevel=1] [L187] int pumpRunning = 0; VAL [\old(cleanupTimeShifts)=176, \old(head)=165, \old(head)=182, \old(methaneLevelCritical)=146, \old(pumpRunning)=139, \old(systemActive)=138, \old(waterLevel)=143, cleanupTimeShifts=176, head={182:165}, methaneLevelCritical=0, pumpRunning=0, systemActive=138, waterLevel=1] [L188] int systemActive = 1; VAL [\old(cleanupTimeShifts)=176, \old(head)=182, \old(head)=165, \old(methaneLevelCritical)=146, \old(pumpRunning)=139, \old(systemActive)=138, \old(waterLevel)=143, cleanupTimeShifts=176, head={182:165}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L627] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=176, \old(head)=182, \old(head)=165, \old(methaneLevelCritical)=146, \old(pumpRunning)=139, \old(systemActive)=138, \old(waterLevel)=143, cleanupTimeShifts=176, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L824] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=176, \old(head)=165, \old(head)=182, \old(methaneLevelCritical)=146, \old(pumpRunning)=139, \old(systemActive)=138, \old(waterLevel)=143, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L897] 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] [L898] 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] [L902] 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] [L903] 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] [L904] 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] [L71] 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] [L74] 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] [L75] 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] [L904] 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] [L904] 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] [L906] 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] [L908] 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] [L909] 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] [L891] 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] [L383] 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] [L384] 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] [L385] 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] [L386] 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] [L387] 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] [L390] 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] [L392] 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] [L394] 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] [L400] 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] [L402] 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] [L404] 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] [L105] 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] [L106] 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] [L404] 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] [L410] 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] [L412] 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] [L420] tmp___2 = __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, tmp___2=0, waterLevel=2] [L422] COND FALSE !(\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=0, waterLevel=2] [L426] tmp___1 = __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___1=1, tmp___2=0, waterLevel=2] [L428] COND TRUE \read(tmp___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, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L430] CALL stopSystem() 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] [L369] COND FALSE !(\read(pumpRunning)) 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] [L376] systemActive = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L430] RET stopSystem() 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=0, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L437] 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=0, waterLevel=2] [L195] 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=0, waterLevel=2] [L202] COND FALSE !(\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=0, waterLevel=2] [L210] 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=0, waterLevel=2] [L921] 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=0, waterLevel=2] [L922] 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=0, waterLevel=2] [L923] 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=0, waterLevel=2] [L927] 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=0, waterLevel=2] [L126] 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=0, waterLevel=2] [L129] 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=0, waterLevel=2] [L130] 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=0, waterLevel=2] [L927] 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=0, waterLevel=2] [L927] 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=0, tmp=0, waterLevel=2] [L929] 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=0, tmp=0, waterLevel=2] [L933] 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=0, waterLevel=2] [L158] 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=0, waterLevel=2] [L161] 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=0, waterLevel=2] [L162] 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=0, waterLevel=2] [L933] 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=0, tmp=0, waterLevel=2] [L933] 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=0, tmp=0, tmp___0=2, waterLevel=2] [L935] 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=0, tmp=0, tmp___0=2, waterLevel=2] [L937] 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=0, waterLevel=2] [L302] 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=0, waterLevel=2] [L305] 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=0, waterLevel=2] [L306] 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=0, waterLevel=2] [L937] 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=0, tmp=0, tmp___0=2, waterLevel=2] [L937] 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=0, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L939] 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=0, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L943] 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=0, waterLevel=2] [L453] 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=0, waterLevel=2] [L3] __assert_fail("0", "minepump_spec3_product39.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=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 643 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 26.3s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 20.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1297 SDtfs, 2418 SDslu, 1626 SDs, 0 SdLazy, 3684 SolverSat, 858 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 148 GetRequests, 104 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 8.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1082occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.4s AutomataMinimizationTime, 5 MinimizatonAttempts, 346 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 1032 NumberOfCodeBlocks, 1032 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 844 ConstructedInterpolants, 0 QuantifiedInterpolants, 375690 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...