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/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product63.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 02:49:50,108 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 02:49:50,111 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 02:49:50,130 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 02:49:50,131 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 02:49:50,132 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 02:49:50,134 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 02:49:50,145 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 02:49:50,149 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 02:49:50,152 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 02:49:50,154 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 02:49:50,157 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 02:49:50,157 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 02:49:50,159 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 02:49:50,161 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 02:49:50,162 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 02:49:50,163 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 02:49:50,165 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 02:49:50,167 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 02:49:50,172 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 02:49:50,176 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 02:49:50,178 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 02:49:50,181 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 02:49:50,183 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 02:49:50,185 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 02:49:50,185 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 02:49:50,185 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 02:49:50,188 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 02:49:50,189 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 02:49:50,190 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 02:49:50,191 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 02:49:50,191 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 02:49:50,192 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 02:49:50,193 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 02:49:50,195 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 02:49:50,195 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 02:49:50,196 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 02:49:50,196 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 02:49:50,196 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 02:49:50,198 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 02:49:50,199 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 02:49:50,201 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-10 02:49:50,236 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 02:49:50,237 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 02:49:50,238 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 02:49:50,238 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 02:49:50,239 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 02:49:50,239 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 02:49:50,239 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 02:49:50,239 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 02:49:50,240 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 02:49:50,240 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 02:49:50,242 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 02:49:50,243 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 02:49:50,243 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 02:49:50,243 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 02:49:50,244 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 02:49:50,244 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 02:49:50,244 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 02:49:50,244 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 02:49:50,244 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 02:49:50,244 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 02:49:50,245 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 02:49:50,245 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 02:49:50,245 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 02:49:50,245 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:49:50,246 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 02:49:50,246 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 02:49:50,246 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 02:49:50,246 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 02:49:50,246 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 02:49:50,247 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 02:49:50,303 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 02:49:50,324 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 02:49:50,329 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 02:49:50,330 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 02:49:50,331 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 02:49:50,332 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product63.cil.c [2019-09-10 02:49:50,417 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52650a3a5/2c8d0bb12c324f74a27dbf3c37a218a0/FLAG7fa1ca39b [2019-09-10 02:49:51,005 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 02:49:51,006 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product63.cil.c [2019-09-10 02:49:51,021 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52650a3a5/2c8d0bb12c324f74a27dbf3c37a218a0/FLAG7fa1ca39b [2019-09-10 02:49:51,274 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52650a3a5/2c8d0bb12c324f74a27dbf3c37a218a0 [2019-09-10 02:49:51,286 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 02:49:51,288 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 02:49:51,291 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 02:49:51,291 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 02:49:51,295 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 02:49:51,296 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:49:51" (1/1) ... [2019-09-10 02:49:51,300 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b533bf0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:51, skipping insertion in model container [2019-09-10 02:49:51,300 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:49:51" (1/1) ... [2019-09-10 02:49:51,308 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 02:49:51,376 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 02:49:51,837 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:49:51,852 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 02:49:51,969 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:49:52,006 INFO L192 MainTranslator]: Completed translation [2019-09-10 02:49:52,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:52 WrapperNode [2019-09-10 02:49:52,007 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 02:49:52,008 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 02:49:52,008 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 02:49:52,008 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 02:49:52,023 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:52" (1/1) ... [2019-09-10 02:49:52,023 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:52" (1/1) ... [2019-09-10 02:49:52,043 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:52" (1/1) ... [2019-09-10 02:49:52,044 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:52" (1/1) ... [2019-09-10 02:49:52,075 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:52" (1/1) ... [2019-09-10 02:49:52,089 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:52" (1/1) ... [2019-09-10 02:49:52,102 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:52" (1/1) ... [2019-09-10 02:49:52,118 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 02:49:52,119 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 02:49:52,119 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 02:49:52,120 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 02:49:52,123 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:52" (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 [2019-09-10 02:49:52,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 02:49:52,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 02:49:52,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-10 02:49:52,194 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-10 02:49:52,194 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-10 02:49:52,195 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-10 02:49:52,195 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-10 02:49:52,195 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 02:49:52,195 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-10 02:49:52,195 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-10 02:49:52,196 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-10 02:49:52,196 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-10 02:49:52,197 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-10 02:49:52,198 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-10 02:49:52,198 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-09-10 02:49:52,199 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2019-09-10 02:49:52,199 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-10 02:49:52,199 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-09-10 02:49:52,200 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-10 02:49:52,200 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-10 02:49:52,200 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-10 02:49:52,200 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-10 02:49:52,200 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-10 02:49:52,200 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-09-10 02:49:52,201 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-10 02:49:52,201 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-09-10 02:49:52,202 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-10 02:49:52,202 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-10 02:49:52,202 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-10 02:49:52,202 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-10 02:49:52,203 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-10 02:49:52,203 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-10 02:49:52,203 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-10 02:49:52,203 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-09-10 02:49:52,204 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-10 02:49:52,204 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-10 02:49:52,204 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2019-09-10 02:49:52,204 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-10 02:49:52,205 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-10 02:49:52,205 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-10 02:49:52,205 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-10 02:49:52,205 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-10 02:49:52,205 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-10 02:49:52,205 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 02:49:52,206 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 02:49:52,206 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-10 02:49:52,206 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-10 02:49:52,206 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-10 02:49:52,206 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-10 02:49:52,206 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-10 02:49:52,206 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-10 02:49:52,207 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-10 02:49:52,207 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-10 02:49:52,207 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-10 02:49:52,207 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-10 02:49:52,207 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-10 02:49:52,207 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-10 02:49:52,207 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-10 02:49:52,208 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 02:49:52,208 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-10 02:49:52,208 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-10 02:49:52,208 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-10 02:49:52,208 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-10 02:49:52,208 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-09-10 02:49:52,209 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-10 02:49:52,209 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-10 02:49:52,210 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-10 02:49:52,210 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-10 02:49:52,210 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-09-10 02:49:52,210 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2019-09-10 02:49:52,210 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-10 02:49:52,210 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-10 02:49:52,211 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-09-10 02:49:52,211 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-09-10 02:49:52,212 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-10 02:49:52,212 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2019-09-10 02:49:52,212 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-10 02:49:52,212 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-09-10 02:49:52,212 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 02:49:52,213 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-10 02:49:52,213 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-10 02:49:52,213 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-10 02:49:52,214 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 02:49:52,214 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 02:49:52,214 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-10 02:49:52,215 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 02:49:52,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 02:49:52,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 02:49:52,216 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 02:49:52,216 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-10 02:49:52,216 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 02:49:52,216 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-10 02:49:52,217 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-10 02:49:52,217 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 02:49:52,217 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-10 02:49:52,217 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-10 02:49:52,217 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-10 02:49:52,217 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 02:49:52,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-10 02:49:52,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 02:49:53,414 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 02:49:53,415 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-10 02:49:53,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:49:53 BoogieIcfgContainer [2019-09-10 02:49:53,416 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 02:49:53,418 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 02:49:53,418 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 02:49:53,421 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 02:49:53,422 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 02:49:51" (1/3) ... [2019-09-10 02:49:53,423 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8e72cbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:49:53, skipping insertion in model container [2019-09-10 02:49:53,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:52" (2/3) ... [2019-09-10 02:49:53,424 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8e72cbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:49:53, skipping insertion in model container [2019-09-10 02:49:53,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:49:53" (3/3) ... [2019-09-10 02:49:53,425 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product63.cil.c [2019-09-10 02:49:53,435 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 02:49:53,447 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 02:49:53,465 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 02:49:53,492 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 02:49:53,492 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 02:49:53,493 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 02:49:53,493 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 02:49:53,493 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 02:49:53,493 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 02:49:53,493 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 02:49:53,493 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 02:49:53,515 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states. [2019-09-10 02:49:53,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-10 02:49:53,531 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:49:53,532 INFO L399 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] [2019-09-10 02:49:53,534 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:49:53,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:49:53,539 INFO L82 PathProgramCache]: Analyzing trace with hash -1970857402, now seen corresponding path program 1 times [2019-09-10 02:49:53,541 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:49:53,586 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:53,587 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:49:53,587 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:53,587 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:49:53,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:49:53,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:49:53,896 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:49:53,896 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-10 02:49:53,896 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:49:53,902 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:49:53,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:49:53,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:49:53,917 INFO L87 Difference]: Start difference. First operand 205 states. Second operand 2 states. [2019-09-10 02:49:53,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:49:53,947 INFO L93 Difference]: Finished difference Result 173 states and 206 transitions. [2019-09-10 02:49:53,948 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:49:53,949 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 52 [2019-09-10 02:49:53,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:49:53,966 INFO L225 Difference]: With dead ends: 173 [2019-09-10 02:49:53,967 INFO L226 Difference]: Without dead ends: 162 [2019-09-10 02:49:53,969 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:49:53,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2019-09-10 02:49:54,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2019-09-10 02:49:54,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2019-09-10 02:49:54,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 194 transitions. [2019-09-10 02:49:54,027 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 194 transitions. Word has length 52 [2019-09-10 02:49:54,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:49:54,028 INFO L475 AbstractCegarLoop]: Abstraction has 162 states and 194 transitions. [2019-09-10 02:49:54,028 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:49:54,028 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 194 transitions. [2019-09-10 02:49:54,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-09-10 02:49:54,033 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:49:54,033 INFO L399 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] [2019-09-10 02:49:54,033 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:49:54,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:49:54,034 INFO L82 PathProgramCache]: Analyzing trace with hash -1981154653, now seen corresponding path program 1 times [2019-09-10 02:49:54,034 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:49:54,035 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:54,036 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:49:54,036 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:54,036 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:49:54,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:49:54,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:49:54,217 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:49:54,217 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:49:54,217 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:49:54,220 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:49:54,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:49:54,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:49:54,222 INFO L87 Difference]: Start difference. First operand 162 states and 194 transitions. Second operand 3 states. [2019-09-10 02:49:54,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:49:54,258 INFO L93 Difference]: Finished difference Result 153 states and 182 transitions. [2019-09-10 02:49:54,262 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:49:54,263 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2019-09-10 02:49:54,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:49:54,267 INFO L225 Difference]: With dead ends: 153 [2019-09-10 02:49:54,267 INFO L226 Difference]: Without dead ends: 153 [2019-09-10 02:49:54,270 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:49:54,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2019-09-10 02:49:54,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2019-09-10 02:49:54,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2019-09-10 02:49:54,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 182 transitions. [2019-09-10 02:49:54,302 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 182 transitions. Word has length 53 [2019-09-10 02:49:54,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:49:54,303 INFO L475 AbstractCegarLoop]: Abstraction has 153 states and 182 transitions. [2019-09-10 02:49:54,303 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:49:54,303 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 182 transitions. [2019-09-10 02:49:54,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-09-10 02:49:54,306 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:49:54,306 INFO L399 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] [2019-09-10 02:49:54,307 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:49:54,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:49:54,307 INFO L82 PathProgramCache]: Analyzing trace with hash 1942602443, now seen corresponding path program 1 times [2019-09-10 02:49:54,307 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:49:54,308 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:54,309 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:49:54,309 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:54,309 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:49:54,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:49:54,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:49:54,462 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:49:54,462 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:49:54,462 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:49:54,463 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:49:54,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:49:54,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:49:54,464 INFO L87 Difference]: Start difference. First operand 153 states and 182 transitions. Second operand 7 states. [2019-09-10 02:49:55,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:49:55,078 INFO L93 Difference]: Finished difference Result 338 states and 409 transitions. [2019-09-10 02:49:55,078 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 02:49:55,079 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 57 [2019-09-10 02:49:55,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:49:55,084 INFO L225 Difference]: With dead ends: 338 [2019-09-10 02:49:55,084 INFO L226 Difference]: Without dead ends: 338 [2019-09-10 02:49:55,085 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-09-10 02:49:55,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2019-09-10 02:49:55,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 330. [2019-09-10 02:49:55,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 330 states. [2019-09-10 02:49:55,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 403 transitions. [2019-09-10 02:49:55,126 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 403 transitions. Word has length 57 [2019-09-10 02:49:55,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:49:55,126 INFO L475 AbstractCegarLoop]: Abstraction has 330 states and 403 transitions. [2019-09-10 02:49:55,127 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:49:55,127 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 403 transitions. [2019-09-10 02:49:55,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2019-09-10 02:49:55,134 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:49:55,134 INFO L399 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] [2019-09-10 02:49:55,135 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:49:55,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:49:55,138 INFO L82 PathProgramCache]: Analyzing trace with hash -1716572839, now seen corresponding path program 1 times [2019-09-10 02:49:55,139 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:49:55,140 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:55,140 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:49:55,140 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:55,140 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:49:55,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:49:55,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:49:55,271 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:49:55,271 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-10 02:49:55,272 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:49:55,273 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-10 02:49:55,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-10 02:49:55,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-10 02:49:55,274 INFO L87 Difference]: Start difference. First operand 330 states and 403 transitions. Second operand 6 states. [2019-09-10 02:49:55,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:49:55,527 INFO L93 Difference]: Finished difference Result 609 states and 752 transitions. [2019-09-10 02:49:55,528 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 02:49:55,528 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 63 [2019-09-10 02:49:55,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:49:55,534 INFO L225 Difference]: With dead ends: 609 [2019-09-10 02:49:55,534 INFO L226 Difference]: Without dead ends: 609 [2019-09-10 02:49:55,535 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-09-10 02:49:55,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 609 states. [2019-09-10 02:49:55,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 609 to 603. [2019-09-10 02:49:55,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 603 states. [2019-09-10 02:49:55,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 746 transitions. [2019-09-10 02:49:55,595 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 746 transitions. Word has length 63 [2019-09-10 02:49:55,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:49:55,596 INFO L475 AbstractCegarLoop]: Abstraction has 603 states and 746 transitions. [2019-09-10 02:49:55,602 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-10 02:49:55,603 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 746 transitions. [2019-09-10 02:49:55,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2019-09-10 02:49:55,609 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:49:55,612 INFO L399 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] [2019-09-10 02:49:55,612 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:49:55,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:49:55,613 INFO L82 PathProgramCache]: Analyzing trace with hash -1081719041, now seen corresponding path program 1 times [2019-09-10 02:49:55,613 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:49:55,614 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:55,614 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:49:55,615 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:55,615 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:49:56,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-10 02:49:56,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-10 02:49:56,802 INFO L466 BasicCegarLoop]: Counterexample might be feasible [2019-09-10 02:49:57,024 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 02:49:57 BoogieIcfgContainer [2019-09-10 02:49:57,025 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 02:49:57,033 INFO L168 Benchmark]: Toolchain (without parser) took 5741.83 ms. Allocated memory was 142.6 MB in the beginning and 309.9 MB in the end (delta: 167.2 MB). Free memory was 88.0 MB in the beginning and 232.3 MB in the end (delta: -144.3 MB). Peak memory consumption was 117.1 MB. Max. memory is 7.1 GB. [2019-09-10 02:49:57,034 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 142.6 MB. Free memory was 107.5 MB in the beginning and 107.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-10 02:49:57,037 INFO L168 Benchmark]: CACSL2BoogieTranslator took 716.59 ms. Allocated memory was 142.6 MB in the beginning and 200.8 MB in the end (delta: 58.2 MB). Free memory was 87.8 MB in the beginning and 166.0 MB in the end (delta: -78.3 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. [2019-09-10 02:49:57,040 INFO L168 Benchmark]: Boogie Preprocessor took 110.63 ms. Allocated memory is still 200.8 MB. Free memory was 166.0 MB in the beginning and 161.5 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. [2019-09-10 02:49:57,041 INFO L168 Benchmark]: RCFGBuilder took 1297.75 ms. Allocated memory was 200.8 MB in the beginning and 230.7 MB in the end (delta: 29.9 MB). Free memory was 161.5 MB in the beginning and 191.8 MB in the end (delta: -30.4 MB). Peak memory consumption was 84.2 MB. Max. memory is 7.1 GB. [2019-09-10 02:49:57,042 INFO L168 Benchmark]: TraceAbstraction took 3607.07 ms. Allocated memory was 230.7 MB in the beginning and 309.9 MB in the end (delta: 79.2 MB). Free memory was 190.5 MB in the beginning and 232.3 MB in the end (delta: -41.8 MB). Peak memory consumption was 131.5 MB. Max. memory is 7.1 GB. [2019-09-10 02:49:57,050 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 142.6 MB. Free memory was 107.5 MB in the beginning and 107.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 716.59 ms. Allocated memory was 142.6 MB in the beginning and 200.8 MB in the end (delta: 58.2 MB). Free memory was 87.8 MB in the beginning and 166.0 MB in the end (delta: -78.3 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 110.63 ms. Allocated memory is still 200.8 MB. Free memory was 166.0 MB in the beginning and 161.5 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1297.75 ms. Allocated memory was 200.8 MB in the beginning and 230.7 MB in the end (delta: 29.9 MB). Free memory was 161.5 MB in the beginning and 191.8 MB in the end (delta: -30.4 MB). Peak memory consumption was 84.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3607.07 ms. Allocated memory was 230.7 MB in the beginning and 309.9 MB in the end (delta: 79.2 MB). Free memory was 190.5 MB in the beginning and 232.3 MB in the end (delta: -41.8 MB). Peak memory consumption was 131.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 619]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L188] int pumpRunning = 0; [L189] int systemActive = 1; [L512] int waterLevel = 1; [L513] int methaneLevelCritical = 0; [L827] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L121] int retValue_acc ; [L122] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L126] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L127] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L128] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L170] int retValue_acc ; [L173] retValue_acc = 1 [L174] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L128] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L132] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L133] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L112] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L445] int splverifierCounter ; [L446] int tmp ; [L447] int tmp___0 ; [L448] int tmp___1 ; [L449] int tmp___2 ; [L452] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L454] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L456] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L462] tmp = __VERIFIER_nondet_int() [L464] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L466] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L530] COND TRUE waterLevel < 2 [L531] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L466] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L472] tmp___0 = __VERIFIER_nondet_int() [L474] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L482] tmp___2 = __VERIFIER_nondet_int() [L484] COND FALSE !(\read(tmp___2)) [L488] tmp___1 = __VERIFIER_nondet_int() [L490] COND TRUE \read(tmp___1) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=7, tmp___2=0, waterLevel=2] [L492] CALL stopSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L432] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L439] systemActive = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L492] RET stopSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=0, tmp=1, tmp___0=0, tmp___1=7, tmp___2=0, waterLevel=2] [L499] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L196] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L203] COND FALSE !(\read(systemActive)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L211] CALL __utac_acc__Specification3_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L625] int tmp ; [L626] int tmp___0 ; [L627] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L631] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L551] int retValue_acc ; [L554] retValue_acc = methaneLevelCritical [L555] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L631] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L631] tmp = isMethaneLevelCritical() [L633] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, waterLevel=2] [L637] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L583] int retValue_acc ; [L586] retValue_acc = waterLevel [L587] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=0, waterLevel=2] [L637] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, waterLevel=2] [L637] tmp___0 = getWaterLevel() [L639] COND TRUE tmp___0 == 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2] [L641] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L346] int retValue_acc ; [L349] retValue_acc = pumpRunning [L350] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L641] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2] [L641] tmp___1 = isPumpRunning() [L643] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L647] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L619] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 43 procedures, 261 locations, 1 error locations. UNSAFE Result, 3.5s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 830 SDtfs, 455 SDslu, 1610 SDs, 0 SdLazy, 382 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=603occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 14 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 292 NumberOfCodeBlocks, 292 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 221 ConstructedInterpolants, 0 QuantifiedInterpolants, 20709 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...