/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product31.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 12:33:42,957 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 12:33:42,960 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 12:33:42,973 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 12:33:42,974 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 12:33:42,975 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 12:33:42,976 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 12:33:42,978 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 12:33:42,980 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 12:33:42,981 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 12:33:42,982 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 12:33:42,983 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 12:33:42,984 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 12:33:42,985 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 12:33:42,986 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 12:33:42,988 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 12:33:42,989 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 12:33:42,990 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 12:33:42,991 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 12:33:42,993 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 12:33:42,995 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 12:33:42,996 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 12:33:42,997 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 12:33:42,998 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 12:33:43,001 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-07 12:33:43,001 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-07 12:33:43,001 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-07 12:33:43,002 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-07 12:33:43,003 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-07 12:33:43,004 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-07 12:33:43,004 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-07 12:33:43,005 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-07 12:33:43,008 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-07 12:33:43,010 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-07 12:33:43,011 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-07 12:33:43,011 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-07 12:33:43,012 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-07 12:33:43,012 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-07 12:33:43,012 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 12:33:43,017 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 12:33:43,019 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 12:33:43,021 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-07 12:33:43,036 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 12:33:43,036 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 12:33:43,038 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 12:33:43,038 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 12:33:43,038 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 12:33:43,039 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 12:33:43,039 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 12:33:43,039 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 12:33:43,039 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 12:33:43,039 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 12:33:43,041 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 12:33:43,041 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 12:33:43,041 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 12:33:43,042 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 12:33:43,042 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 12:33:43,042 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-07 12:33:43,043 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 12:33:43,043 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 12:33:43,043 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 12:33:43,043 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 12:33:43,043 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-07 12:33:43,044 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 12:33:43,044 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-07 12:33:43,322 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 12:33:43,335 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 12:33:43,339 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 12:33:43,340 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 12:33:43,341 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 12:33:43,341 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product31.cil.c [2020-07-07 12:33:43,428 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b18d9ad4/3f675f81204b43429cee4aac273cf3c8/FLAG7c7408ef0 [2020-07-07 12:33:43,997 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 12:33:43,997 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product31.cil.c [2020-07-07 12:33:44,009 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b18d9ad4/3f675f81204b43429cee4aac273cf3c8/FLAG7c7408ef0 [2020-07-07 12:33:44,265 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b18d9ad4/3f675f81204b43429cee4aac273cf3c8 [2020-07-07 12:33:44,275 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 12:33:44,277 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 12:33:44,277 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 12:33:44,278 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 12:33:44,281 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 12:33:44,282 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 12:33:44" (1/1) ... [2020-07-07 12:33:44,285 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60986292 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:44, skipping insertion in model container [2020-07-07 12:33:44,285 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 12:33:44" (1/1) ... [2020-07-07 12:33:44,293 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 12:33:44,333 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 12:33:44,912 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 12:33:44,931 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 12:33:44,995 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 12:33:45,029 INFO L208 MainTranslator]: Completed translation [2020-07-07 12:33:45,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:45 WrapperNode [2020-07-07 12:33:45,030 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 12:33:45,031 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 12:33:45,031 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 12:33:45,031 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 12:33:45,046 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:45" (1/1) ... [2020-07-07 12:33:45,046 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:45" (1/1) ... [2020-07-07 12:33:45,066 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:45" (1/1) ... [2020-07-07 12:33:45,066 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:45" (1/1) ... [2020-07-07 12:33:45,101 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:45" (1/1) ... [2020-07-07 12:33:45,111 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:45" (1/1) ... [2020-07-07 12:33:45,116 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:45" (1/1) ... [2020-07-07 12:33:45,123 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 12:33:45,124 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 12:33:45,124 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 12:33:45,124 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 12:33:45,125 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:45" (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 [2020-07-07 12:33:45,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 12:33:45,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 12:33:45,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-07 12:33:45,197 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-07 12:33:45,198 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-07 12:33:45,198 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-07 12:33:45,198 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-07 12:33:45,198 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-07 12:33:45,198 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-07 12:33:45,198 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-07-07 12:33:45,198 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-07 12:33:45,199 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-07 12:33:45,199 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-07 12:33:45,199 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-07 12:33:45,199 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-07 12:33:45,199 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-07 12:33:45,199 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-07 12:33:45,199 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-07 12:33:45,200 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-07 12:33:45,200 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-07 12:33:45,200 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-07-07 12:33:45,201 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-07 12:33:45,202 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-07-07 12:33:45,202 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-07 12:33:45,203 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-07 12:33:45,203 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-07 12:33:45,203 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-07 12:33:45,203 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-07 12:33:45,203 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-07-07 12:33:45,204 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-07 12:33:45,204 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-07-07 12:33:45,204 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-07 12:33:45,205 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-07 12:33:45,205 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-07 12:33:45,205 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-07 12:33:45,205 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-07 12:33:45,205 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-07 12:33:45,206 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-07 12:33:45,206 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-07 12:33:45,206 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 12:33:45,206 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 12:33:45,206 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-07 12:33:45,206 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-07 12:33:45,206 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-07 12:33:45,206 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-07 12:33:45,206 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-07 12:33:45,206 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-07 12:33:45,207 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-07 12:33:45,207 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-07 12:33:45,207 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-07-07 12:33:45,207 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-07 12:33:45,207 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-07 12:33:45,207 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-07 12:33:45,207 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-07 12:33:45,208 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-07 12:33:45,208 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-07 12:33:45,208 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-07 12:33:45,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-07 12:33:45,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-07 12:33:45,208 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-07 12:33:45,208 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-07 12:33:45,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-07 12:33:45,208 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-07 12:33:45,208 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-07 12:33:45,209 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-07 12:33:45,209 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-07 12:33:45,209 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-07 12:33:45,209 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-07 12:33:45,209 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-07 12:33:45,209 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-07 12:33:45,209 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-07 12:33:45,209 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-07 12:33:45,209 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-07 12:33:45,210 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-07 12:33:45,210 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-07 12:33:45,210 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-07 12:33:45,210 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-07-07 12:33:45,210 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-07 12:33:45,210 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-07 12:33:45,210 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-07-07 12:33:45,211 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-07-07 12:33:45,211 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-07 12:33:45,212 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-07-07 12:33:45,212 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-07 12:33:45,212 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-07 12:33:45,212 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-07 12:33:45,212 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-07 12:33:45,213 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-07 12:33:45,214 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-07 12:33:45,214 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-07 12:33:45,214 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 12:33:45,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 12:33:45,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-07 12:33:45,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 12:33:46,271 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 12:33:46,272 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-07 12:33:46,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 12:33:46 BoogieIcfgContainer [2020-07-07 12:33:46,281 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 12:33:46,282 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 12:33:46,282 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 12:33:46,285 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 12:33:46,285 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 12:33:44" (1/3) ... [2020-07-07 12:33:46,286 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b8e3f1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 12:33:46, skipping insertion in model container [2020-07-07 12:33:46,286 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:45" (2/3) ... [2020-07-07 12:33:46,287 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b8e3f1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 12:33:46, skipping insertion in model container [2020-07-07 12:33:46,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 12:33:46" (3/3) ... [2020-07-07 12:33:46,289 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product31.cil.c [2020-07-07 12:33:46,297 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-07 12:33:46,305 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 12:33:46,316 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 12:33:46,335 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 12:33:46,335 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 12:33:46,336 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-07 12:33:46,336 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 12:33:46,336 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 12:33:46,337 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 12:33:46,337 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 12:33:46,337 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 12:33:46,358 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states. [2020-07-07 12:33:46,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-07-07 12:33:46,380 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:33:46,381 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] [2020-07-07 12:33:46,382 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:33:46,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:33:46,388 INFO L82 PathProgramCache]: Analyzing trace with hash -1392630044, now seen corresponding path program 1 times [2020-07-07 12:33:46,397 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:33:46,398 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [820628600] [2020-07-07 12:33:46,398 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:33:46,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:47,137 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:33:47,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:47,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:47,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:47,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:47,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:47,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:47,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:47,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:47,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:33:47,340 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:33:47,342 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [820628600] [2020-07-07 12:33:47,345 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:33:47,345 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 12:33:47,345 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174778767] [2020-07-07 12:33:47,356 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 12:33:47,357 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:33:47,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 12:33:47,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 12:33:47,380 INFO L87 Difference]: Start difference. First operand 322 states. Second operand 3 states. [2020-07-07 12:33:48,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:33:48,895 INFO L93 Difference]: Finished difference Result 491 states and 589 transitions. [2020-07-07 12:33:48,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 12:33:48,899 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-07-07 12:33:48,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:33:48,917 INFO L225 Difference]: With dead ends: 491 [2020-07-07 12:33:48,917 INFO L226 Difference]: Without dead ends: 304 [2020-07-07 12:33:48,923 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 12:33:48,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2020-07-07 12:33:49,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 261. [2020-07-07 12:33:49,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261 states. [2020-07-07 12:33:49,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 286 transitions. [2020-07-07 12:33:49,065 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 286 transitions. Word has length 153 [2020-07-07 12:33:49,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:33:49,066 INFO L479 AbstractCegarLoop]: Abstraction has 261 states and 286 transitions. [2020-07-07 12:33:49,066 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 12:33:49,066 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 286 transitions. [2020-07-07 12:33:49,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-07-07 12:33:49,071 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:33:49,072 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] [2020-07-07 12:33:49,072 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 12:33:49,072 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:33:49,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:33:49,073 INFO L82 PathProgramCache]: Analyzing trace with hash 1904681825, now seen corresponding path program 1 times [2020-07-07 12:33:49,073 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:33:49,073 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1941146937] [2020-07-07 12:33:49,074 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:33:49,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:49,465 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:33:49,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:49,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:49,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:49,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:49,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:49,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:49,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:49,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:49,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:33:49,536 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:33:49,536 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1941146937] [2020-07-07 12:33:49,537 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:33:49,537 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 12:33:49,537 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614503553] [2020-07-07 12:33:49,538 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 12:33:49,538 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:33:49,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 12:33:49,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 12:33:49,539 INFO L87 Difference]: Start difference. First operand 261 states and 286 transitions. Second operand 4 states. [2020-07-07 12:33:50,105 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:33:51,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:33:51,071 INFO L93 Difference]: Finished difference Result 402 states and 456 transitions. [2020-07-07 12:33:51,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-07 12:33:51,072 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-07-07 12:33:51,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:33:51,076 INFO L225 Difference]: With dead ends: 402 [2020-07-07 12:33:51,077 INFO L226 Difference]: Without dead ends: 287 [2020-07-07 12:33:51,079 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-07 12:33:51,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-07-07 12:33:51,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 251. [2020-07-07 12:33:51,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 251 states. [2020-07-07 12:33:51,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 273 transitions. [2020-07-07 12:33:51,192 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 273 transitions. Word has length 154 [2020-07-07 12:33:51,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:33:51,193 INFO L479 AbstractCegarLoop]: Abstraction has 251 states and 273 transitions. [2020-07-07 12:33:51,193 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 12:33:51,193 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 273 transitions. [2020-07-07 12:33:51,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-07-07 12:33:51,196 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:33:51,196 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] [2020-07-07 12:33:51,196 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 12:33:51,196 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:33:51,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:33:51,197 INFO L82 PathProgramCache]: Analyzing trace with hash -533123061, now seen corresponding path program 1 times [2020-07-07 12:33:51,197 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:33:51,197 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1287893639] [2020-07-07 12:33:51,198 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:33:51,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:51,531 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:33:51,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:51,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:51,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:51,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:51,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:51,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:51,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:51,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:51,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:33:51,727 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:33:51,728 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1287893639] [2020-07-07 12:33:51,728 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:33:51,728 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-07 12:33:51,729 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046964501] [2020-07-07 12:33:51,729 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-07 12:33:51,730 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:33:51,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-07 12:33:51,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-07-07 12:33:51,730 INFO L87 Difference]: Start difference. First operand 251 states and 273 transitions. Second operand 9 states. [2020-07-07 12:33:52,221 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:33:52,546 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 12:33:52,820 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-07 12:33:53,118 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:33:53,368 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:33:53,609 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:33:54,617 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:33:56,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:33:56,926 INFO L93 Difference]: Finished difference Result 675 states and 782 transitions. [2020-07-07 12:33:56,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-07 12:33:56,931 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 163 [2020-07-07 12:33:56,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:33:56,936 INFO L225 Difference]: With dead ends: 675 [2020-07-07 12:33:56,936 INFO L226 Difference]: Without dead ends: 534 [2020-07-07 12:33:56,939 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-07-07 12:33:56,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2020-07-07 12:33:57,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 467. [2020-07-07 12:33:57,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 467 states. [2020-07-07 12:33:57,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 526 transitions. [2020-07-07 12:33:57,099 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 526 transitions. Word has length 163 [2020-07-07 12:33:57,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:33:57,100 INFO L479 AbstractCegarLoop]: Abstraction has 467 states and 526 transitions. [2020-07-07 12:33:57,100 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-07 12:33:57,100 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 526 transitions. [2020-07-07 12:33:57,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-07-07 12:33:57,105 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:33:57,106 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] [2020-07-07 12:33:57,106 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-07 12:33:57,106 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:33:57,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:33:57,107 INFO L82 PathProgramCache]: Analyzing trace with hash -1712848447, now seen corresponding path program 1 times [2020-07-07 12:33:57,107 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:33:57,111 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1267764875] [2020-07-07 12:33:57,111 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:33:57,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:57,474 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:33:57,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:57,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:57,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:57,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:57,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:57,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:57,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:57,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:57,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:57,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:33:57,612 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:33:57,613 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1267764875] [2020-07-07 12:33:57,613 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:33:57,613 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-07 12:33:57,614 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932152463] [2020-07-07 12:33:57,614 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-07 12:33:57,615 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:33:57,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-07 12:33:57,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-07-07 12:33:57,615 INFO L87 Difference]: Start difference. First operand 467 states and 526 transitions. Second operand 9 states. [2020-07-07 12:33:58,156 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:34:00,183 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:34:00,489 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:34:00,789 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:34:01,095 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:34:01,341 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:34:01,583 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:34:01,822 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:34:02,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:34:02,691 INFO L93 Difference]: Finished difference Result 1264 states and 1525 transitions. [2020-07-07 12:34:02,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-07-07 12:34:02,692 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 172 [2020-07-07 12:34:02,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:34:02,701 INFO L225 Difference]: With dead ends: 1264 [2020-07-07 12:34:02,702 INFO L226 Difference]: Without dead ends: 907 [2020-07-07 12:34:02,705 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-07-07 12:34:02,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 907 states. [2020-07-07 12:34:03,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 907 to 807. [2020-07-07 12:34:03,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 807 states. [2020-07-07 12:34:03,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 807 states to 807 states and 935 transitions. [2020-07-07 12:34:03,021 INFO L78 Accepts]: Start accepts. Automaton has 807 states and 935 transitions. Word has length 172 [2020-07-07 12:34:03,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:34:03,022 INFO L479 AbstractCegarLoop]: Abstraction has 807 states and 935 transitions. [2020-07-07 12:34:03,022 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-07 12:34:03,022 INFO L276 IsEmpty]: Start isEmpty. Operand 807 states and 935 transitions. [2020-07-07 12:34:03,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-07-07 12:34:03,034 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:34:03,034 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:34:03,035 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-07 12:34:03,035 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:34:03,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:34:03,035 INFO L82 PathProgramCache]: Analyzing trace with hash 1677643238, now seen corresponding path program 1 times [2020-07-07 12:34:03,037 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:34:03,037 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [401188087] [2020-07-07 12:34:03,037 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:34:03,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 12:34:03,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 12:34:03,432 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:34:03,433 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-07 12:34:03,433 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-07 12:34:03,435 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-07 12:34:03,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 12:34:03 BoogieIcfgContainer [2020-07-07 12:34:03,467 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 12:34:03,469 INFO L168 Benchmark]: Toolchain (without parser) took 19192.40 ms. Allocated memory was 136.8 MB in the beginning and 576.2 MB in the end (delta: 439.4 MB). Free memory was 99.5 MB in the beginning and 507.6 MB in the end (delta: -408.1 MB). Peak memory consumption was 418.2 MB. Max. memory is 7.1 GB. [2020-07-07 12:34:03,471 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 136.8 MB. Free memory was 119.0 MB in the beginning and 118.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-07 12:34:03,477 INFO L168 Benchmark]: CACSL2BoogieTranslator took 752.89 ms. Allocated memory was 136.8 MB in the beginning and 203.9 MB in the end (delta: 67.1 MB). Free memory was 99.3 MB in the beginning and 171.3 MB in the end (delta: -71.9 MB). Peak memory consumption was 28.1 MB. Max. memory is 7.1 GB. [2020-07-07 12:34:03,478 INFO L168 Benchmark]: Boogie Preprocessor took 92.88 ms. Allocated memory is still 203.9 MB. Free memory was 171.3 MB in the beginning and 167.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-07-07 12:34:03,479 INFO L168 Benchmark]: RCFGBuilder took 1156.97 ms. Allocated memory was 203.9 MB in the beginning and 233.8 MB in the end (delta: 29.9 MB). Free memory was 167.1 MB in the beginning and 176.0 MB in the end (delta: -8.9 MB). Peak memory consumption was 86.1 MB. Max. memory is 7.1 GB. [2020-07-07 12:34:03,480 INFO L168 Benchmark]: TraceAbstraction took 17184.92 ms. Allocated memory was 233.8 MB in the beginning and 576.2 MB in the end (delta: 342.4 MB). Free memory was 176.0 MB in the beginning and 507.6 MB in the end (delta: -331.6 MB). Peak memory consumption was 397.7 MB. Max. memory is 7.1 GB. [2020-07-07 12:34:03,492 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 136.8 MB. Free memory was 119.0 MB in the beginning and 118.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 752.89 ms. Allocated memory was 136.8 MB in the beginning and 203.9 MB in the end (delta: 67.1 MB). Free memory was 99.3 MB in the beginning and 171.3 MB in the end (delta: -71.9 MB). Peak memory consumption was 28.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 92.88 ms. Allocated memory is still 203.9 MB. Free memory was 171.3 MB in the beginning and 167.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1156.97 ms. Allocated memory was 203.9 MB in the beginning and 233.8 MB in the end (delta: 29.9 MB). Free memory was 167.1 MB in the beginning and 176.0 MB in the end (delta: -8.9 MB). Peak memory consumption was 86.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 17184.92 ms. Allocated memory was 233.8 MB in the beginning and 576.2 MB in the end (delta: 342.4 MB). Free memory was 176.0 MB in the beginning and 507.6 MB in the end (delta: -331.6 MB). Peak memory consumption was 397.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 140]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L47] int waterLevel = 1; [L48] int methaneLevelCritical = 0; [L314] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L585] int pumpRunning = 0; [L586] int systemActive = 1; [L868] int cleanupTimeShifts = 4; [L941] int retValue_acc ; [L942] int tmp ; [L946] FCALL select_helpers() [L947] FCALL select_features() [L948] CALL, EXPR valid_product() [L859] int retValue_acc ; [L862] retValue_acc = 1 [L863] return (retValue_acc); [L948] RET, EXPR valid_product() [L948] tmp = valid_product() [L950] COND TRUE \read(tmp) [L952] FCALL setup() [L953] CALL runTest() [L935] CALL test() [L515] int splverifierCounter ; [L516] int tmp ; [L517] int tmp___0 ; [L518] int tmp___1 ; [L519] int tmp___2 ; [L522] splverifierCounter = 0 [L524] COND TRUE 1 [L526] COND TRUE splverifierCounter < 4 [L532] tmp = __VERIFIER_nondet_int() [L534] COND TRUE \read(tmp) [L536] CALL waterRise() [L65] COND TRUE waterLevel < 2 [L66] waterLevel = waterLevel + 1 [L536] RET waterRise() [L542] tmp___0 = __VERIFIER_nondet_int() [L544] COND FALSE !(\read(tmp___0)) [L552] tmp___2 = __VERIFIER_nondet_int() [L554] COND FALSE !(\read(tmp___2)) [L558] tmp___1 = __VERIFIER_nondet_int() [L560] COND TRUE \read(tmp___1) [L562] CALL stopSystem() [L784] COND FALSE !(\read(pumpRunning)) [L791] systemActive = 0 [L562] RET stopSystem() [L569] CALL timeShift() [L593] COND FALSE !(\read(pumpRunning)) [L600] COND FALSE !(\read(systemActive)) [L608] CALL __utac_acc__Specification3_spec__1() [L797] int tmp ; [L798] int tmp___0 ; [L799] int tmp___1 ; [L803] CALL, EXPR isMethaneLevelCritical() [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); [L803] RET, EXPR isMethaneLevelCritical() [L803] tmp = isMethaneLevelCritical() [L805] COND FALSE !(\read(tmp)) [L809] CALL, EXPR getWaterLevel() [L118] int retValue_acc ; [L121] retValue_acc = waterLevel [L122] return (retValue_acc); [L809] RET, EXPR getWaterLevel() [L809] tmp___0 = getWaterLevel() [L811] COND TRUE tmp___0 == 2 [L813] CALL, EXPR isPumpRunning() [L717] int retValue_acc ; [L720] retValue_acc = pumpRunning [L721] return (retValue_acc); [L813] RET, EXPR isPumpRunning() [L813] tmp___1 = isPumpRunning() [L815] COND FALSE !(\read(tmp___1)) [L819] CALL __automaton_fail() [L140] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 636 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 17.1s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 13.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1000 SDtfs, 1368 SDslu, 1259 SDs, 0 SdLazy, 3179 SolverSat, 481 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 113 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 4.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=807occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 4 MinimizatonAttempts, 246 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...