/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 --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product47.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 21:23:49,127 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 21:23:49,130 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 21:23:49,154 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 21:23:49,154 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 21:23:49,155 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 21:23:49,156 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 21:23:49,158 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 21:23:49,159 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 21:23:49,160 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 21:23:49,161 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 21:23:49,162 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 21:23:49,163 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 21:23:49,163 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 21:23:49,164 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 21:23:49,165 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 21:23:49,166 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 21:23:49,167 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 21:23:49,169 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 21:23:49,170 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 21:23:49,172 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 21:23:49,173 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 21:23:49,174 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 21:23:49,174 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 21:23:49,177 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 21:23:49,177 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 21:23:49,177 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 21:23:49,178 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 21:23:49,178 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 21:23:49,179 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 21:23:49,179 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 21:23:49,180 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 21:23:49,181 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 21:23:49,182 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 21:23:49,183 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 21:23:49,183 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 21:23:49,183 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 21:23:49,184 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 21:23:49,184 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 21:23:49,185 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 21:23:49,185 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 21:23:49,186 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-08-22 21:23:49,198 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 21:23:49,198 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 21:23:49,199 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 21:23:49,200 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 21:23:49,200 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 21:23:49,200 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 21:23:49,200 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 21:23:49,200 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 21:23:49,206 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 21:23:49,206 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 21:23:49,206 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 21:23:49,207 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 21:23:49,207 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 21:23:49,207 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 21:23:49,207 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 21:23:49,207 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 21:23:49,208 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 21:23:49,208 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 21:23:49,208 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 21:23:49,208 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 21:23:49,208 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 21:23:49,209 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 21:23:49,210 INFO L138 SettingsManager]: * Use separate solver for trace checks=false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-08-22 21:23:49,524 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 21:23:49,543 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 21:23:49,547 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 21:23:49,548 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 21:23:49,549 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 21:23:49,549 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product47.cil.c [2020-08-22 21:23:49,608 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7130bdb2c/17ef6829daef4a06a92f969ae0f96085/FLAG88b3a10ad [2020-08-22 21:23:50,083 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 21:23:50,084 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product47.cil.c [2020-08-22 21:23:50,101 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7130bdb2c/17ef6829daef4a06a92f969ae0f96085/FLAG88b3a10ad [2020-08-22 21:23:50,401 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7130bdb2c/17ef6829daef4a06a92f969ae0f96085 [2020-08-22 21:23:50,409 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 21:23:50,412 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 21:23:50,413 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 21:23:50,413 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 21:23:50,419 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 21:23:50,420 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 09:23:50" (1/1) ... [2020-08-22 21:23:50,423 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c7ca4c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:23:50, skipping insertion in model container [2020-08-22 21:23:50,423 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 09:23:50" (1/1) ... [2020-08-22 21:23:50,431 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 21:23:50,498 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 21:23:50,805 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 21:23:50,910 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 21:23:50,995 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 21:23:51,031 INFO L208 MainTranslator]: Completed translation [2020-08-22 21:23:51,032 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:23:51 WrapperNode [2020-08-22 21:23:51,032 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 21:23:51,032 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 21:23:51,033 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 21:23:51,033 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 21:23:51,046 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:23:51" (1/1) ... [2020-08-22 21:23:51,047 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:23:51" (1/1) ... [2020-08-22 21:23:51,074 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:23:51" (1/1) ... [2020-08-22 21:23:51,074 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:23:51" (1/1) ... [2020-08-22 21:23:51,105 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:23:51" (1/1) ... [2020-08-22 21:23:51,115 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:23:51" (1/1) ... [2020-08-22 21:23:51,121 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:23:51" (1/1) ... [2020-08-22 21:23:51,130 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 21:23:51,130 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 21:23:51,130 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 21:23:51,130 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 21:23:51,131 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:23:51" (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 [2020-08-22 21:23:51,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 21:23:51,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 21:23:51,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-22 21:23:51,212 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-22 21:23:51,212 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-22 21:23:51,212 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-22 21:23:51,212 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-22 21:23:51,213 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-22 21:23:51,213 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 21:23:51,213 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-22 21:23:51,213 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-22 21:23:51,213 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-22 21:23:51,213 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-22 21:23:51,213 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-22 21:23:51,214 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-22 21:23:51,214 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-22 21:23:51,214 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-22 21:23:51,214 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-22 21:23:51,214 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-22 21:23:51,215 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-22 21:23:51,215 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-22 21:23:51,215 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-22 21:23:51,215 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-08-22 21:23:51,215 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-22 21:23:51,215 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-08-22 21:23:51,216 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-22 21:23:51,216 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-22 21:23:51,216 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-22 21:23:51,216 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-22 21:23:51,216 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-22 21:23:51,216 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-08-22 21:23:51,217 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-08-22 21:23:51,217 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-22 21:23:51,217 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-22 21:23:51,217 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-22 21:23:51,217 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-22 21:23:51,217 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-22 21:23:51,217 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-22 21:23:51,218 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-08-22 21:23:51,218 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-08-22 21:23:51,218 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 21:23:51,218 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 21:23:51,218 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-22 21:23:51,218 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-22 21:23:51,219 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-22 21:23:51,219 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-22 21:23:51,219 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-22 21:23:51,219 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-22 21:23:51,219 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-22 21:23:51,219 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-22 21:23:51,219 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-22 21:23:51,220 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-22 21:23:51,220 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-22 21:23:51,220 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-22 21:23:51,220 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-22 21:23:51,220 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-22 21:23:51,220 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 21:23:51,220 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-22 21:23:51,221 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-22 21:23:51,221 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-22 21:23:51,221 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-22 21:23:51,221 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-22 21:23:51,221 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-22 21:23:51,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-22 21:23:51,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 21:23:51,222 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-22 21:23:51,222 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-22 21:23:51,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 21:23:51,222 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-22 21:23:51,222 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-22 21:23:51,222 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 21:23:51,222 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-22 21:23:51,223 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-22 21:23:51,223 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 21:23:51,223 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-22 21:23:51,223 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-08-22 21:23:51,223 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-22 21:23:51,223 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-22 21:23:51,224 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-22 21:23:51,224 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-08-22 21:23:51,224 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-22 21:23:51,224 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-22 21:23:51,224 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-22 21:23:51,224 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-08-22 21:23:51,224 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-22 21:23:51,225 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-22 21:23:51,225 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-08-22 21:23:51,225 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-08-22 21:23:51,225 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-22 21:23:51,225 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-08-22 21:23:51,225 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-22 21:23:51,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 21:23:51,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-22 21:23:51,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 21:23:52,320 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 21:23:52,320 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-22 21:23:52,327 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 09:23:52 BoogieIcfgContainer [2020-08-22 21:23:52,327 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 21:23:52,328 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 21:23:52,329 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 21:23:52,332 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 21:23:52,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 09:23:50" (1/3) ... [2020-08-22 21:23:52,333 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fe74a08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 09:23:52, skipping insertion in model container [2020-08-22 21:23:52,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:23:51" (2/3) ... [2020-08-22 21:23:52,333 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fe74a08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 09:23:52, skipping insertion in model container [2020-08-22 21:23:52,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 09:23:52" (3/3) ... [2020-08-22 21:23:52,335 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product47.cil.c [2020-08-22 21:23:52,345 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 21:23:52,354 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 21:23:52,368 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 21:23:52,390 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 21:23:52,390 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 21:23:52,390 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 21:23:52,390 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 21:23:52,391 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 21:23:52,391 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 21:23:52,391 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 21:23:52,391 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 21:23:52,412 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states. [2020-08-22 21:23:52,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-08-22 21:23:52,434 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:23:52,436 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] [2020-08-22 21:23:52,436 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:23:52,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:23:52,442 INFO L82 PathProgramCache]: Analyzing trace with hash -1612013966, now seen corresponding path program 1 times [2020-08-22 21:23:52,450 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:23:52,451 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1165078340] [2020-08-22 21:23:52,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:23:52,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:53,132 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 21:23:53,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:23:53,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:53,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 21:23:53,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:53,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 21:23:53,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:53,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 21:23:53,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:53,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 21:23:53,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:53,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-22 21:23:53,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:53,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-08-22 21:23:53,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:53,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-08-22 21:23:53,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:53,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 21:23:53,380 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1165078340] [2020-08-22 21:23:53,382 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 21:23:53,383 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 21:23:53,384 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788677546] [2020-08-22 21:23:53,390 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 21:23:53,390 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:23:53,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 21:23:53,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 21:23:53,409 INFO L87 Difference]: Start difference. First operand 327 states. Second operand 3 states. [2020-08-22 21:23:54,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:23:54,821 INFO L93 Difference]: Finished difference Result 523 states and 625 transitions. [2020-08-22 21:23:54,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 21:23:54,823 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-08-22 21:23:54,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:23:54,841 INFO L225 Difference]: With dead ends: 523 [2020-08-22 21:23:54,841 INFO L226 Difference]: Without dead ends: 321 [2020-08-22 21:23:54,847 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 [2020-08-22 21:23:54,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2020-08-22 21:23:54,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 276. [2020-08-22 21:23:54,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2020-08-22 21:23:54,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 303 transitions. [2020-08-22 21:23:54,994 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 303 transitions. Word has length 153 [2020-08-22 21:23:54,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:23:54,995 INFO L479 AbstractCegarLoop]: Abstraction has 276 states and 303 transitions. [2020-08-22 21:23:54,995 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 21:23:54,995 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 303 transitions. [2020-08-22 21:23:55,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-08-22 21:23:55,000 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:23:55,001 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] [2020-08-22 21:23:55,001 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 21:23:55,001 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:23:55,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:23:55,002 INFO L82 PathProgramCache]: Analyzing trace with hash -178714613, now seen corresponding path program 1 times [2020-08-22 21:23:55,002 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:23:55,002 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1384796356] [2020-08-22 21:23:55,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:23:55,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:55,387 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 21:23:55,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:23:55,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:55,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 21:23:55,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:55,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 21:23:55,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:55,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 21:23:55,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:55,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 21:23:55,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:55,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-08-22 21:23:55,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:55,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-08-22 21:23:55,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:55,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-08-22 21:23:55,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:55,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 21:23:55,455 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1384796356] [2020-08-22 21:23:55,455 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 21:23:55,455 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 21:23:55,455 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329373342] [2020-08-22 21:23:55,457 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-22 21:23:55,458 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:23:55,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-22 21:23:55,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-22 21:23:55,458 INFO L87 Difference]: Start difference. First operand 276 states and 303 transitions. Second operand 4 states. [2020-08-22 21:23:56,052 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 21:23:57,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:23:57,082 INFO L93 Difference]: Finished difference Result 434 states and 492 transitions. [2020-08-22 21:23:57,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-22 21:23:57,083 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-08-22 21:23:57,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:23:57,089 INFO L225 Difference]: With dead ends: 434 [2020-08-22 21:23:57,089 INFO L226 Difference]: Without dead ends: 304 [2020-08-22 21:23:57,091 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-22 21:23:57,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2020-08-22 21:23:57,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 266. [2020-08-22 21:23:57,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-08-22 21:23:57,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 290 transitions. [2020-08-22 21:23:57,189 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 290 transitions. Word has length 154 [2020-08-22 21:23:57,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:23:57,190 INFO L479 AbstractCegarLoop]: Abstraction has 266 states and 290 transitions. [2020-08-22 21:23:57,190 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-22 21:23:57,190 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 290 transitions. [2020-08-22 21:23:57,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-08-22 21:23:57,193 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:23:57,193 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 21:23:57,194 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 21:23:57,194 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:23:57,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:23:57,194 INFO L82 PathProgramCache]: Analyzing trace with hash -1820602845, now seen corresponding path program 1 times [2020-08-22 21:23:57,195 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:23:57,195 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1595550206] [2020-08-22 21:23:57,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:23:57,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:57,500 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 21:23:57,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:23:57,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:57,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 21:23:57,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:57,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 21:23:57,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:57,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 21:23:57,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:57,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 21:23:57,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:57,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-08-22 21:23:57,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:57,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-08-22 21:23:57,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:57,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-08-22 21:23:57,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:23:57,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 21:23:57,640 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1595550206] [2020-08-22 21:23:57,641 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 21:23:57,641 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-22 21:23:57,641 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169098762] [2020-08-22 21:23:57,642 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 21:23:57,642 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:23:57,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 21:23:57,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-08-22 21:23:57,643 INFO L87 Difference]: Start difference. First operand 266 states and 290 transitions. Second operand 9 states. [2020-08-22 21:23:58,292 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 21:23:58,604 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 21:23:58,842 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 21:23:59,081 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 21:23:59,338 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 21:23:59,577 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 21:24:00,490 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 21:24:02,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:24:02,944 INFO L93 Difference]: Finished difference Result 724 states and 837 transitions. [2020-08-22 21:24:02,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-22 21:24:02,944 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 163 [2020-08-22 21:24:02,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:24:02,951 INFO L225 Difference]: With dead ends: 724 [2020-08-22 21:24:02,951 INFO L226 Difference]: Without dead ends: 568 [2020-08-22 21:24:02,952 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-08-22 21:24:02,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2020-08-22 21:24:03,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 497. [2020-08-22 21:24:03,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 497 states. [2020-08-22 21:24:03,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 497 states to 497 states and 560 transitions. [2020-08-22 21:24:03,118 INFO L78 Accepts]: Start accepts. Automaton has 497 states and 560 transitions. Word has length 163 [2020-08-22 21:24:03,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:24:03,118 INFO L479 AbstractCegarLoop]: Abstraction has 497 states and 560 transitions. [2020-08-22 21:24:03,119 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 21:24:03,119 INFO L276 IsEmpty]: Start isEmpty. Operand 497 states and 560 transitions. [2020-08-22 21:24:03,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-08-22 21:24:03,122 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:24:03,123 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] [2020-08-22 21:24:03,123 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 21:24:03,123 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:24:03,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:24:03,124 INFO L82 PathProgramCache]: Analyzing trace with hash -1334837787, now seen corresponding path program 1 times [2020-08-22 21:24:03,124 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:24:03,124 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [208888182] [2020-08-22 21:24:03,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:24:03,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:24:03,390 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 21:24:03,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:24:03,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:24:03,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 21:24:03,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:24:03,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 21:24:03,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:24:03,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 21:24:03,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:24:03,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 21:24:03,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:24:03,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-08-22 21:24:03,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:24:03,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-08-22 21:24:03,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:24:03,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-08-22 21:24:03,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:24:03,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-08-22 21:24:03,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:24:03,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 21:24:03,564 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [208888182] [2020-08-22 21:24:03,565 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 21:24:03,565 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-22 21:24:03,565 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127845081] [2020-08-22 21:24:03,566 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 21:24:03,566 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:24:03,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 21:24:03,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-08-22 21:24:03,567 INFO L87 Difference]: Start difference. First operand 497 states and 560 transitions. Second operand 9 states. [2020-08-22 21:24:04,041 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 21:24:05,995 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 21:24:06,258 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 21:24:06,529 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 21:24:06,794 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 21:24:07,051 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 21:24:07,295 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 21:24:07,537 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 21:24:08,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:24:08,502 INFO L93 Difference]: Finished difference Result 1358 states and 1641 transitions. [2020-08-22 21:24:08,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-08-22 21:24:08,508 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 172 [2020-08-22 21:24:08,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:24:08,516 INFO L225 Difference]: With dead ends: 1358 [2020-08-22 21:24:08,516 INFO L226 Difference]: Without dead ends: 971 [2020-08-22 21:24:08,519 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-08-22 21:24:08,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 971 states. [2020-08-22 21:24:08,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 971 to 867. [2020-08-22 21:24:08,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 867 states. [2020-08-22 21:24:08,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 1001 transitions. [2020-08-22 21:24:08,954 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 1001 transitions. Word has length 172 [2020-08-22 21:24:08,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:24:08,954 INFO L479 AbstractCegarLoop]: Abstraction has 867 states and 1001 transitions. [2020-08-22 21:24:08,954 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 21:24:08,955 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 1001 transitions. [2020-08-22 21:24:08,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-08-22 21:24:08,960 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:24:08,960 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] [2020-08-22 21:24:08,960 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 21:24:08,960 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:24:08,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:24:08,961 INFO L82 PathProgramCache]: Analyzing trace with hash -1117798554, now seen corresponding path program 1 times [2020-08-22 21:24:08,961 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:24:08,961 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1562190250] [2020-08-22 21:24:08,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:24:08,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:24:09,237 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 21:24:09,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:24:09,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:24:09,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 21:24:09,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:24:09,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 21:24:09,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:24:09,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 21:24:09,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:24:09,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 21:24:09,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:24:09,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-08-22 21:24:09,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:24:09,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-08-22 21:24:09,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:24:09,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-08-22 21:24:09,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:24:09,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-08-22 21:24:09,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:24:09,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-08-22 21:24:09,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:24:09,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 21:24:09,358 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1562190250] [2020-08-22 21:24:09,358 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 21:24:09,358 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-22 21:24:09,359 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133126129] [2020-08-22 21:24:09,359 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 21:24:09,359 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:24:09,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 21:24:09,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-22 21:24:09,360 INFO L87 Difference]: Start difference. First operand 867 states and 1001 transitions. Second operand 6 states. [2020-08-22 21:24:09,880 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 21:24:12,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:24:12,056 INFO L93 Difference]: Finished difference Result 2006 states and 2416 transitions. [2020-08-22 21:24:12,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-22 21:24:12,061 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 177 [2020-08-22 21:24:12,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:24:12,069 INFO L225 Difference]: With dead ends: 2006 [2020-08-22 21:24:12,069 INFO L226 Difference]: Without dead ends: 1249 [2020-08-22 21:24:12,073 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-08-22 21:24:12,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1249 states. [2020-08-22 21:24:12,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1249 to 1152. [2020-08-22 21:24:12,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1152 states. [2020-08-22 21:24:12,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1152 states to 1152 states and 1315 transitions. [2020-08-22 21:24:12,541 INFO L78 Accepts]: Start accepts. Automaton has 1152 states and 1315 transitions. Word has length 177 [2020-08-22 21:24:12,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:24:12,543 INFO L479 AbstractCegarLoop]: Abstraction has 1152 states and 1315 transitions. [2020-08-22 21:24:12,543 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 21:24:12,543 INFO L276 IsEmpty]: Start isEmpty. Operand 1152 states and 1315 transitions. [2020-08-22 21:24:12,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-08-22 21:24:12,548 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:24:12,548 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] [2020-08-22 21:24:12,549 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 21:24:12,549 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:24:12,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:24:12,549 INFO L82 PathProgramCache]: Analyzing trace with hash 654753658, now seen corresponding path program 1 times [2020-08-22 21:24:12,549 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:24:12,550 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1531709364] [2020-08-22 21:24:12,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:24:12,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 21:24:12,631 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 21:24:12,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 21:24:12,688 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 21:24:12,908 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-22 21:24:12,909 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-22 21:24:12,909 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-22 21:24:13,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 09:24:13 BoogieIcfgContainer [2020-08-22 21:24:13,093 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 21:24:13,094 INFO L168 Benchmark]: Toolchain (without parser) took 22683.54 ms. Allocated memory was 137.9 MB in the beginning and 699.4 MB in the end (delta: 561.5 MB). Free memory was 100.6 MB in the beginning and 356.9 MB in the end (delta: -256.3 MB). Peak memory consumption was 305.2 MB. Max. memory is 7.1 GB. [2020-08-22 21:24:13,095 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 137.9 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-08-22 21:24:13,096 INFO L168 Benchmark]: CACSL2BoogieTranslator took 619.19 ms. Allocated memory was 137.9 MB in the beginning and 201.9 MB in the end (delta: 64.0 MB). Free memory was 100.2 MB in the beginning and 171.0 MB in the end (delta: -70.8 MB). Peak memory consumption was 29.2 MB. Max. memory is 7.1 GB. [2020-08-22 21:24:13,097 INFO L168 Benchmark]: Boogie Preprocessor took 97.38 ms. Allocated memory is still 201.9 MB. Free memory was 171.0 MB in the beginning and 166.5 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. [2020-08-22 21:24:13,098 INFO L168 Benchmark]: RCFGBuilder took 1197.13 ms. Allocated memory was 201.9 MB in the beginning and 232.8 MB in the end (delta: 30.9 MB). Free memory was 166.5 MB in the beginning and 174.1 MB in the end (delta: -7.7 MB). Peak memory consumption was 86.8 MB. Max. memory is 7.1 GB. [2020-08-22 21:24:13,099 INFO L168 Benchmark]: TraceAbstraction took 20764.32 ms. Allocated memory was 232.8 MB in the beginning and 699.4 MB in the end (delta: 466.6 MB). Free memory was 174.1 MB in the beginning and 356.9 MB in the end (delta: -182.7 MB). Peak memory consumption was 283.9 MB. Max. memory is 7.1 GB. [2020-08-22 21:24:13,102 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 137.9 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 619.19 ms. Allocated memory was 137.9 MB in the beginning and 201.9 MB in the end (delta: 64.0 MB). Free memory was 100.2 MB in the beginning and 171.0 MB in the end (delta: -70.8 MB). Peak memory consumption was 29.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 97.38 ms. Allocated memory is still 201.9 MB. Free memory was 171.0 MB in the beginning and 166.5 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1197.13 ms. Allocated memory was 201.9 MB in the beginning and 232.8 MB in the end (delta: 30.9 MB). Free memory was 166.5 MB in the beginning and 174.1 MB in the end (delta: -7.7 MB). Peak memory consumption was 86.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 20764.32 ms. Allocated memory was 232.8 MB in the beginning and 699.4 MB in the end (delta: 466.6 MB). Free memory was 174.1 MB in the beginning and 356.9 MB in the end (delta: -182.7 MB). Peak memory consumption was 283.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 44]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L49] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=171, \old(head)=176, \old(head)=163, \old(methaneLevelCritical)=149, \old(pumpRunning)=141, \old(systemActive)=140, \old(waterLevel)=142, cleanupTimeShifts=4, head={176:163}, methaneLevelCritical=149, pumpRunning=141, systemActive=140, waterLevel=142] [L357] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=171, \old(head)=176, \old(head)=163, \old(methaneLevelCritical)=149, \old(pumpRunning)=141, \old(systemActive)=140, \old(waterLevel)=142, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=149, pumpRunning=141, systemActive=140, waterLevel=142] [L629] int pumpRunning = 0; VAL [\old(cleanupTimeShifts)=171, \old(head)=163, \old(head)=176, \old(methaneLevelCritical)=149, \old(pumpRunning)=141, \old(systemActive)=140, \old(waterLevel)=142, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=149, pumpRunning=0, systemActive=140, waterLevel=142] [L630] int systemActive = 1; VAL [\old(cleanupTimeShifts)=171, \old(head)=163, \old(head)=176, \old(methaneLevelCritical)=149, \old(pumpRunning)=141, \old(systemActive)=140, \old(waterLevel)=142, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=149, pumpRunning=0, systemActive=1, waterLevel=142] [L841] int waterLevel = 1; VAL [\old(cleanupTimeShifts)=171, \old(head)=163, \old(head)=176, \old(methaneLevelCritical)=149, \old(pumpRunning)=141, \old(systemActive)=140, \old(waterLevel)=142, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=149, pumpRunning=0, systemActive=1, waterLevel=1] [L842] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=171, \old(head)=176, \old(head)=163, \old(methaneLevelCritical)=149, \old(pumpRunning)=141, \old(systemActive)=140, \old(waterLevel)=142, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L130] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L131] 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] [L135] 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] [L136] 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] [L137] 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] [L179] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L182] retValue_acc = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L183] 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] [L137] 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] [L137] tmp = valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, valid_product()=1, waterLevel=1] [L139] 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] [L141] 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] [L142] 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] [L121] 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] [L556] int splverifierCounter ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L557] 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] [L558] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L559] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L560] int tmp___2 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L563] 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] [L565] 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] [L567] 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] [L573] tmp = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L575] 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] [L577] 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] [L859] COND TRUE waterLevel < 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L860] 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] [L577] 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] [L583] tmp___0 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L585] 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] [L593] tmp___2 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=0, waterLevel=2] [L595] COND FALSE !(\read(tmp___2)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=0, waterLevel=2] [L599] tmp___1 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L601] COND TRUE \read(tmp___1) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L603] 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] [L828] 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] [L835] 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] [L603] RET stopSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=0, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L610] 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] [L637] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L644] 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] [L652] 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] [L936] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L937] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L938] 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] [L942] 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] [L880] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L883] retValue_acc = methaneLevelCritical VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L884] 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] [L942] 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] [L942] tmp = isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, waterLevel=2] [L944] 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] [L948] 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] [L912] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L915] retValue_acc = waterLevel VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=0, waterLevel=2] [L916] 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] [L948] 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] [L948] tmp___0 = getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2] [L950] 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] [L952] 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] [L761] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L764] retValue_acc = pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L765] 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] [L952] 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] [L952] tmp___1 = isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L954] 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] [L958] 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] [L44] __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 40 procedures, 639 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 20.5s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 16.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1308 SDtfs, 2065 SDslu, 1450 SDs, 0 SdLazy, 3889 SolverSat, 716 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 148 GetRequests, 104 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 5.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1152occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 355 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 996 NumberOfCodeBlocks, 996 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 814 ConstructedInterpolants, 0 QuantifiedInterpolants, 341532 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...