/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_product40.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 12:34:05,015 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 12:34:05,017 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 12:34:05,033 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 12:34:05,033 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 12:34:05,034 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 12:34:05,035 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 12:34:05,037 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 12:34:05,038 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 12:34:05,039 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 12:34:05,040 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 12:34:05,041 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 12:34:05,042 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 12:34:05,043 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 12:34:05,044 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 12:34:05,045 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 12:34:05,046 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 12:34:05,047 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 12:34:05,048 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 12:34:05,050 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 12:34:05,052 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 12:34:05,053 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 12:34:05,054 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 12:34:05,055 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 12:34:05,057 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-07 12:34:05,057 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-07 12:34:05,058 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-07 12:34:05,059 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-07 12:34:05,059 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-07 12:34:05,060 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-07 12:34:05,060 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-07 12:34:05,061 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-07 12:34:05,062 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-07 12:34:05,062 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-07 12:34:05,063 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-07 12:34:05,064 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-07 12:34:05,064 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-07 12:34:05,064 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-07 12:34:05,065 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 12:34:05,066 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 12:34:05,066 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 12:34:05,067 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 12:34:05,076 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 12:34:05,076 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 12:34:05,078 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 12:34:05,078 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 12:34:05,078 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 12:34:05,078 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 12:34:05,079 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 12:34:05,079 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 12:34:05,079 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 12:34:05,079 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 12:34:05,079 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 12:34:05,079 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 12:34:05,080 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 12:34:05,080 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 12:34:05,080 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 12:34:05,080 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-07 12:34:05,080 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 12:34:05,081 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 12:34:05,081 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 12:34:05,081 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 12:34:05,081 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-07 12:34:05,081 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 12:34:05,082 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-07 12:34:05,337 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 12:34:05,350 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 12:34:05,353 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 12:34:05,355 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 12:34:05,355 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 12:34:05,356 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product40.cil.c [2020-07-07 12:34:05,427 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/56ba929ca/6ff579609cbf436f98b606f8b4bcc96c/FLAG9c5f7e47b [2020-07-07 12:34:05,923 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 12:34:05,924 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product40.cil.c [2020-07-07 12:34:05,938 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/56ba929ca/6ff579609cbf436f98b606f8b4bcc96c/FLAG9c5f7e47b [2020-07-07 12:34:06,255 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/56ba929ca/6ff579609cbf436f98b606f8b4bcc96c [2020-07-07 12:34:06,265 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 12:34:06,267 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 12:34:06,268 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 12:34:06,268 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 12:34:06,271 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 12:34:06,272 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 12:34:06" (1/1) ... [2020-07-07 12:34:06,275 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31990c12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:34:06, skipping insertion in model container [2020-07-07 12:34:06,275 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 12:34:06" (1/1) ... [2020-07-07 12:34:06,283 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 12:34:06,324 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 12:34:06,658 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 12:34:06,676 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 12:34:06,891 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 12:34:06,925 INFO L208 MainTranslator]: Completed translation [2020-07-07 12:34:06,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:34:06 WrapperNode [2020-07-07 12:34:06,926 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 12:34:06,927 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 12:34:06,927 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 12:34:06,927 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 12:34:06,937 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:34:06" (1/1) ... [2020-07-07 12:34:06,937 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:34:06" (1/1) ... [2020-07-07 12:34:06,955 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:34:06" (1/1) ... [2020-07-07 12:34:06,956 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:34:06" (1/1) ... [2020-07-07 12:34:06,995 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:34:06" (1/1) ... [2020-07-07 12:34:07,006 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:34:06" (1/1) ... [2020-07-07 12:34:07,012 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:34:06" (1/1) ... [2020-07-07 12:34:07,019 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 12:34:07,020 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 12:34:07,020 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 12:34:07,020 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 12:34:07,021 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:34:06" (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 12:34:07,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 12:34:07,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 12:34:07,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-07 12:34:07,085 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-07 12:34:07,085 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-07 12:34:07,085 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-07 12:34:07,086 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-07 12:34:07,086 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 12:34:07,086 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-07 12:34:07,086 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-07 12:34:07,086 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-07 12:34:07,087 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-07 12:34:07,087 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-07-07 12:34:07,087 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-07 12:34:07,087 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-07 12:34:07,087 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-07 12:34:07,087 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-07 12:34:07,088 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-07 12:34:07,088 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-07 12:34:07,088 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-07 12:34:07,088 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-07 12:34:07,088 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-07 12:34:07,089 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-07 12:34:07,089 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-07-07 12:34:07,089 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-07 12:34:07,089 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-07 12:34:07,089 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-07 12:34:07,089 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-07 12:34:07,090 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-07 12:34:07,090 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-07 12:34:07,090 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-07 12:34:07,090 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-07 12:34:07,090 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-07-07 12:34:07,090 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-07 12:34:07,091 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-07 12:34:07,091 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-07 12:34:07,091 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-07 12:34:07,091 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-07 12:34:07,091 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-07 12:34:07,091 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-07 12:34:07,092 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 12:34:07,092 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-07 12:34:07,092 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-07 12:34:07,092 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-07 12:34:07,092 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-07 12:34:07,092 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-07 12:34:07,093 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-07 12:34:07,093 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-07 12:34:07,093 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-07 12:34:07,093 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-07 12:34:07,093 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-07 12:34:07,093 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-07 12:34:07,093 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-07 12:34:07,094 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-07 12:34:07,094 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-07 12:34:07,094 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 12:34:07,094 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-07 12:34:07,094 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-07 12:34:07,094 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-07 12:34:07,094 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-07 12:34:07,095 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-07 12:34:07,095 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-07-07 12:34:07,095 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-07 12:34:07,095 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-07 12:34:07,095 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-07 12:34:07,095 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-07 12:34:07,095 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-07 12:34:07,096 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-07 12:34:07,096 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-07 12:34:07,096 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-07-07 12:34:07,096 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-07 12:34:07,096 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-07 12:34:07,096 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-07 12:34:07,096 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-07-07 12:34:07,097 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-07 12:34:07,097 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-07 12:34:07,097 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-07 12:34:07,097 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-07 12:34:07,097 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-07 12:34:07,097 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-07 12:34:07,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-07 12:34:07,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-07 12:34:07,098 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-07 12:34:07,098 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-07 12:34:07,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-07 12:34:07,098 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-07 12:34:07,099 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-07 12:34:07,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-07 12:34:07,099 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-07 12:34:07,099 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-07 12:34:07,099 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-07 12:34:07,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 12:34:07,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-07 12:34:07,100 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 12:34:08,194 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 12:34:08,195 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-07 12:34:08,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 12:34:08 BoogieIcfgContainer [2020-07-07 12:34:08,201 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 12:34:08,202 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 12:34:08,203 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 12:34:08,206 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 12:34:08,206 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 12:34:06" (1/3) ... [2020-07-07 12:34:08,207 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2337d432 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 12:34:08, skipping insertion in model container [2020-07-07 12:34:08,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:34:06" (2/3) ... [2020-07-07 12:34:08,208 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2337d432 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 12:34:08, skipping insertion in model container [2020-07-07 12:34:08,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 12:34:08" (3/3) ... [2020-07-07 12:34:08,209 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product40.cil.c [2020-07-07 12:34:08,220 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-07 12:34:08,229 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 12:34:08,243 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 12:34:08,265 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 12:34:08,266 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 12:34:08,266 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-07 12:34:08,266 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 12:34:08,267 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 12:34:08,267 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 12:34:08,267 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 12:34:08,267 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 12:34:08,288 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states. [2020-07-07 12:34:08,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-07-07 12:34:08,309 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:34:08,311 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 12:34:08,311 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:34:08,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:34:08,318 INFO L82 PathProgramCache]: Analyzing trace with hash 396628182, now seen corresponding path program 1 times [2020-07-07 12:34:08,327 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:34:08,327 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1480738062] [2020-07-07 12:34:08,328 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:34:08,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:09,007 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:34:09,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:09,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:09,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:09,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:09,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:09,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:09,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:09,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:09,265 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 12:34:09,265 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:34:09,269 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1480738062] [2020-07-07 12:34:09,271 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:34:09,271 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 12:34:09,272 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843135733] [2020-07-07 12:34:09,278 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 12:34:09,279 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:34:09,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 12:34:09,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 12:34:09,301 INFO L87 Difference]: Start difference. First operand 322 states. Second operand 3 states. [2020-07-07 12:34:10,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:34:10,694 INFO L93 Difference]: Finished difference Result 512 states and 611 transitions. [2020-07-07 12:34:10,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 12:34:10,698 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-07-07 12:34:10,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:34:10,727 INFO L225 Difference]: With dead ends: 512 [2020-07-07 12:34:10,727 INFO L226 Difference]: Without dead ends: 315 [2020-07-07 12:34:10,738 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 12:34:10,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2020-07-07 12:34:10,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 271. [2020-07-07 12:34:10,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 271 states. [2020-07-07 12:34:10,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 296 transitions. [2020-07-07 12:34:10,880 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 296 transitions. Word has length 153 [2020-07-07 12:34:10,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:34:10,881 INFO L479 AbstractCegarLoop]: Abstraction has 271 states and 296 transitions. [2020-07-07 12:34:10,881 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 12:34:10,882 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 296 transitions. [2020-07-07 12:34:10,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-07-07 12:34:10,886 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:34:10,886 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 12:34:10,886 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 12:34:10,886 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:34:10,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:34:10,887 INFO L82 PathProgramCache]: Analyzing trace with hash 1765968117, now seen corresponding path program 1 times [2020-07-07 12:34:10,887 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:34:10,888 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1181434321] [2020-07-07 12:34:10,888 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:34:10,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:11,314 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:34:11,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:11,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:11,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:11,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:11,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:11,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:11,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:11,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:11,407 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 12:34:11,407 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:34:11,408 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1181434321] [2020-07-07 12:34:11,408 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:34:11,408 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 12:34:11,409 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641276097] [2020-07-07 12:34:11,412 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 12:34:11,412 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:34:11,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 12:34:11,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 12:34:11,413 INFO L87 Difference]: Start difference. First operand 271 states and 296 transitions. Second operand 4 states. [2020-07-07 12:34:12,016 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:34:13,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:34:13,054 INFO L93 Difference]: Finished difference Result 419 states and 474 transitions. [2020-07-07 12:34:13,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-07 12:34:13,055 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-07-07 12:34:13,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:34:13,060 INFO L225 Difference]: With dead ends: 419 [2020-07-07 12:34:13,060 INFO L226 Difference]: Without dead ends: 298 [2020-07-07 12:34:13,062 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 12:34:13,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-07-07 12:34:13,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 261. [2020-07-07 12:34:13,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261 states. [2020-07-07 12:34:13,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 283 transitions. [2020-07-07 12:34:13,148 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 283 transitions. Word has length 154 [2020-07-07 12:34:13,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:34:13,149 INFO L479 AbstractCegarLoop]: Abstraction has 261 states and 283 transitions. [2020-07-07 12:34:13,149 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 12:34:13,150 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 283 transitions. [2020-07-07 12:34:13,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-07-07 12:34:13,152 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:34:13,152 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] [2020-07-07 12:34:13,153 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 12:34:13,153 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:34:13,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:34:13,153 INFO L82 PathProgramCache]: Analyzing trace with hash 308056419, now seen corresponding path program 1 times [2020-07-07 12:34:13,154 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:34:13,154 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1700962630] [2020-07-07 12:34:13,154 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:34:13,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:13,440 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:34:13,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:13,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:13,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:13,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:13,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:13,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:13,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:13,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:13,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:13,614 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 12:34:13,614 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:34:13,614 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1700962630] [2020-07-07 12:34:13,615 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:34:13,615 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-07 12:34:13,615 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061513513] [2020-07-07 12:34:13,616 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-07 12:34:13,617 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:34:13,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-07 12:34:13,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-07-07 12:34:13,618 INFO L87 Difference]: Start difference. First operand 261 states and 283 transitions. Second operand 10 states. [2020-07-07 12:34:14,141 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:34:14,441 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 12:34:14,677 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-07 12:34:14,923 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:34:15,181 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:34:15,398 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:34:16,297 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:34:18,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:34:18,613 INFO L93 Difference]: Finished difference Result 729 states and 851 transitions. [2020-07-07 12:34:18,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-07-07 12:34:18,614 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 167 [2020-07-07 12:34:18,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:34:18,619 INFO L225 Difference]: With dead ends: 729 [2020-07-07 12:34:18,619 INFO L226 Difference]: Without dead ends: 578 [2020-07-07 12:34:18,621 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-07-07 12:34:18,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2020-07-07 12:34:18,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 483. [2020-07-07 12:34:18,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 483 states. [2020-07-07 12:34:18,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 542 transitions. [2020-07-07 12:34:18,816 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 542 transitions. Word has length 167 [2020-07-07 12:34:18,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:34:18,817 INFO L479 AbstractCegarLoop]: Abstraction has 483 states and 542 transitions. [2020-07-07 12:34:18,817 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-07 12:34:18,818 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 542 transitions. [2020-07-07 12:34:18,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-07-07 12:34:18,823 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:34:18,828 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 12:34:18,828 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-07 12:34:18,829 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:34:18,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:34:18,829 INFO L82 PathProgramCache]: Analyzing trace with hash 1931820316, now seen corresponding path program 1 times [2020-07-07 12:34:18,836 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:34:18,837 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [614380131] [2020-07-07 12:34:18,837 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:34:18,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:19,349 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:34:19,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:19,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:19,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:19,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:19,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:19,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:19,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:19,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:19,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:19,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:34:19,577 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:34:19,577 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [614380131] [2020-07-07 12:34:19,578 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:34:19,578 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-07 12:34:19,579 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013837993] [2020-07-07 12:34:19,580 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-07 12:34:19,582 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:34:19,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-07 12:34:19,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-07-07 12:34:19,583 INFO L87 Difference]: Start difference. First operand 483 states and 542 transitions. Second operand 9 states. [2020-07-07 12:34:20,202 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:34:22,099 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:34:22,366 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:34:22,657 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:34:22,969 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:34:23,215 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:34:23,447 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:34:23,684 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:34:24,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:34:24,591 INFO L93 Difference]: Finished difference Result 1311 states and 1585 transitions. [2020-07-07 12:34:24,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-07-07 12:34:24,592 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 172 [2020-07-07 12:34:24,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:34:24,602 INFO L225 Difference]: With dead ends: 1311 [2020-07-07 12:34:24,602 INFO L226 Difference]: Without dead ends: 938 [2020-07-07 12:34:24,604 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-07-07 12:34:24,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 938 states. [2020-07-07 12:34:24,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 938 to 835. [2020-07-07 12:34:24,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 835 states. [2020-07-07 12:34:24,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 835 states to 835 states and 961 transitions. [2020-07-07 12:34:24,863 INFO L78 Accepts]: Start accepts. Automaton has 835 states and 961 transitions. Word has length 172 [2020-07-07 12:34:24,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:34:24,864 INFO L479 AbstractCegarLoop]: Abstraction has 835 states and 961 transitions. [2020-07-07 12:34:24,864 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-07 12:34:24,864 INFO L276 IsEmpty]: Start isEmpty. Operand 835 states and 961 transitions. [2020-07-07 12:34:24,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-07-07 12:34:24,868 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:34:24,868 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 12:34:24,869 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-07 12:34:24,869 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:34:24,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:34:24,869 INFO L82 PathProgramCache]: Analyzing trace with hash 230448906, now seen corresponding path program 1 times [2020-07-07 12:34:24,870 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:34:24,870 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1258708107] [2020-07-07 12:34:24,870 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:34:24,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 12:34:24,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 12:34:25,177 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:34:25,178 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-07 12:34:25,178 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-07 12:34:25,179 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-07 12:34:25,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 12:34:25 BoogieIcfgContainer [2020-07-07 12:34:25,201 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 12:34:25,203 INFO L168 Benchmark]: Toolchain (without parser) took 18936.96 ms. Allocated memory was 137.4 MB in the beginning and 585.6 MB in the end (delta: 448.3 MB). Free memory was 101.1 MB in the beginning and 261.1 MB in the end (delta: -160.0 MB). Peak memory consumption was 288.3 MB. Max. memory is 7.1 GB. [2020-07-07 12:34:25,204 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 137.4 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-07 12:34:25,205 INFO L168 Benchmark]: CACSL2BoogieTranslator took 658.73 ms. Allocated memory was 137.4 MB in the beginning and 202.4 MB in the end (delta: 65.0 MB). Free memory was 100.9 MB in the beginning and 170.3 MB in the end (delta: -69.3 MB). Peak memory consumption was 30.4 MB. Max. memory is 7.1 GB. [2020-07-07 12:34:25,206 INFO L168 Benchmark]: Boogie Preprocessor took 92.99 ms. Allocated memory is still 202.4 MB. Free memory was 170.3 MB in the beginning and 166.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-07-07 12:34:25,207 INFO L168 Benchmark]: RCFGBuilder took 1181.50 ms. Allocated memory was 202.4 MB in the beginning and 233.8 MB in the end (delta: 31.5 MB). Free memory was 166.1 MB in the beginning and 174.2 MB in the end (delta: -8.1 MB). Peak memory consumption was 85.3 MB. Max. memory is 7.1 GB. [2020-07-07 12:34:25,208 INFO L168 Benchmark]: TraceAbstraction took 16998.94 ms. Allocated memory was 233.8 MB in the beginning and 585.6 MB in the end (delta: 351.8 MB). Free memory was 174.2 MB in the beginning and 261.1 MB in the end (delta: -86.9 MB). Peak memory consumption was 264.9 MB. Max. memory is 7.1 GB. [2020-07-07 12:34:25,212 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 137.4 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 658.73 ms. Allocated memory was 137.4 MB in the beginning and 202.4 MB in the end (delta: 65.0 MB). Free memory was 100.9 MB in the beginning and 170.3 MB in the end (delta: -69.3 MB). Peak memory consumption was 30.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 92.99 ms. Allocated memory is still 202.4 MB. Free memory was 170.3 MB in the beginning and 166.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1181.50 ms. Allocated memory was 202.4 MB in the beginning and 233.8 MB in the end (delta: 31.5 MB). Free memory was 166.1 MB in the beginning and 174.2 MB in the end (delta: -8.1 MB). Peak memory consumption was 85.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 16998.94 ms. Allocated memory was 233.8 MB in the beginning and 585.6 MB in the end (delta: 351.8 MB). Free memory was 174.2 MB in the beginning and 261.1 MB in the end (delta: -86.9 MB). Peak memory consumption was 264.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 221]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L229] int waterLevel = 1; [L230] int methaneLevelCritical = 0; [L327] int pumpRunning = 0; [L328] int systemActive = 1; [L766] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L121] int retValue_acc ; [L122] int tmp ; [L126] FCALL select_helpers() [L127] FCALL select_features() [L128] CALL, EXPR valid_product() [L170] int retValue_acc ; [L173] retValue_acc = 1 [L174] return (retValue_acc); [L128] RET, EXPR valid_product() [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) [L132] FCALL setup() [L133] CALL runTest() [L112] CALL test() [L529] int splverifierCounter ; [L530] int tmp ; [L531] int tmp___0 ; [L532] int tmp___1 ; [L533] int tmp___2 ; [L536] splverifierCounter = 0 [L538] COND TRUE 1 [L540] COND TRUE splverifierCounter < 4 [L546] tmp = __VERIFIER_nondet_int() [L548] COND TRUE \read(tmp) [L550] CALL waterRise() [L247] COND TRUE waterLevel < 2 [L248] waterLevel = waterLevel + 1 [L550] RET waterRise() [L556] tmp___0 = __VERIFIER_nondet_int() [L558] COND FALSE !(\read(tmp___0)) [L566] tmp___2 = __VERIFIER_nondet_int() [L568] COND FALSE !(\read(tmp___2)) [L574] tmp___1 = __VERIFIER_nondet_int() [L576] COND TRUE \read(tmp___1) [L578] CALL stopSystem() [L508] COND FALSE !(\read(pumpRunning)) [L515] systemActive = 0 [L578] RET stopSystem() [L585] CALL timeShift() [L334] COND FALSE !(\read(pumpRunning)) [L341] COND FALSE !(\read(systemActive)) [L349] CALL __utac_acc__Specification3_spec__1() [L184] int tmp ; [L185] int tmp___0 ; [L186] int tmp___1 ; [L190] CALL, EXPR isMethaneLevelCritical() [L268] int retValue_acc ; [L271] retValue_acc = methaneLevelCritical [L272] return (retValue_acc); [L190] RET, EXPR isMethaneLevelCritical() [L190] tmp = isMethaneLevelCritical() [L192] COND FALSE !(\read(tmp)) [L196] CALL, EXPR getWaterLevel() [L300] int retValue_acc ; [L303] retValue_acc = waterLevel [L304] return (retValue_acc); [L196] RET, EXPR getWaterLevel() [L196] tmp___0 = getWaterLevel() [L198] COND TRUE tmp___0 == 2 [L200] CALL, EXPR isPumpRunning() [L441] int retValue_acc ; [L444] retValue_acc = pumpRunning [L445] return (retValue_acc); [L200] RET, EXPR isPumpRunning() [L200] tmp___1 = isPumpRunning() [L202] COND FALSE !(\read(tmp___1)) [L206] CALL __automaton_fail() [L221] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 634 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 16.9s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 13.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1043 SDtfs, 1619 SDslu, 1549 SDs, 0 SdLazy, 3333 SolverSat, 592 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 116 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 4.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=835occurred 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: 0.6s AutomataMinimizationTime, 4 MinimizatonAttempts, 279 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...