/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product47.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 12:58:01,538 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 12:58:01,542 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 12:58:01,601 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-23 12:58:01,602 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-23 12:58:01,605 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-23 12:58:01,609 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-23 12:58:01,617 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-23 12:58:01,621 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-23 12:58:01,638 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-23 12:58:01,640 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-23 12:58:01,641 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-23 12:58:01,642 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 12:58:01,645 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 12:58:01,647 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 12:58:01,649 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 12:58:01,654 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 12:58:01,655 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 12:58:01,670 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 12:58:01,675 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 12:58:01,679 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 12:58:01,683 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 12:58:01,684 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 12:58:01,686 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 12:58:01,694 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-23 12:58:01,694 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-23 12:58:01,695 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-23 12:58:01,698 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-23 12:58:01,698 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-23 12:58:01,699 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-23 12:58:01,700 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-23 12:58:01,701 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-23 12:58:01,703 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-23 12:58:01,703 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-23 12:58:01,705 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-23 12:58:01,705 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-23 12:58:01,706 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-23 12:58:01,706 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-23 12:58:01,706 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 12:58:01,707 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 12:58:01,708 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 12:58:01,709 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2021-02-23 12:58:01,766 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 12:58:01,766 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 12:58:01,771 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-23 12:58:01,771 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-23 12:58:01,771 INFO L138 SettingsManager]: * Use SBE=true [2021-02-23 12:58:01,771 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 12:58:01,772 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 12:58:01,772 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 12:58:01,772 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 12:58:01,773 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 12:58:01,774 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 12:58:01,774 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 12:58:01,774 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 12:58:01,774 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 12:58:01,774 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 12:58:01,775 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 12:58:01,775 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 12:58:01,775 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 12:58:01,775 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-23 12:58:01,776 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 12:58:01,776 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 12:58:01,776 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 12:58:01,777 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-23 12:58:01,777 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-23 12:58:01,777 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-23 12:58:01,777 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-23 12:58:01,777 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 12:58:01,778 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-02-23 12:58:01,778 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-23 12:58:02,173 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 12:58:02,203 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 12:58:02,206 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 12:58:02,208 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 12:58:02,208 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 12:58:02,210 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product47.cil.c [2021-02-23 12:58:02,299 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb1c274b6/934fdeaf4929480bb07798308bcde19b/FLAG7e56d6301 [2021-02-23 12:58:02,865 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 12:58:02,866 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product47.cil.c [2021-02-23 12:58:02,880 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb1c274b6/934fdeaf4929480bb07798308bcde19b/FLAG7e56d6301 [2021-02-23 12:58:03,162 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb1c274b6/934fdeaf4929480bb07798308bcde19b [2021-02-23 12:58:03,171 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 12:58:03,187 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 12:58:03,189 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 12:58:03,189 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 12:58:03,194 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 12:58:03,195 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 12:58:03" (1/1) ... [2021-02-23 12:58:03,197 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@494966c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 12:58:03, skipping insertion in model container [2021-02-23 12:58:03,198 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 12:58:03" (1/1) ... [2021-02-23 12:58:03,206 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 12:58:03,283 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 12:58:03,435 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product47.cil.c[1281,1294] [2021-02-23 12:58:03,665 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 12:58:03,679 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 12:58:03,696 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product47.cil.c[1281,1294] [2021-02-23 12:58:03,783 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 12:58:03,853 INFO L208 MainTranslator]: Completed translation [2021-02-23 12:58:03,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 12:58:03 WrapperNode [2021-02-23 12:58:03,854 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 12:58:03,855 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 12:58:03,856 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 12:58:03,858 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 12:58:03,918 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 12:58:03" (1/1) ... [2021-02-23 12:58:03,922 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 12:58:03" (1/1) ... [2021-02-23 12:58:03,996 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 12:58:03" (1/1) ... [2021-02-23 12:58:03,997 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 12:58:03" (1/1) ... [2021-02-23 12:58:04,026 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 12:58:03" (1/1) ... [2021-02-23 12:58:04,037 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 12:58:03" (1/1) ... [2021-02-23 12:58:04,042 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 12:58:03" (1/1) ... [2021-02-23 12:58:04,050 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 12:58:04,051 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 12:58:04,052 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 12:58:04,052 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 12:58:04,053 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 12:58:03" (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 [2021-02-23 12:58:04,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 12:58:04,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 12:58:04,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-02-23 12:58:04,161 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 12:58:04,161 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-02-23 12:58:04,161 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-02-23 12:58:04,162 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2021-02-23 12:58:04,162 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2021-02-23 12:58:04,162 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2021-02-23 12:58:04,162 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 12:58:04,162 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-02-23 12:58:04,162 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2021-02-23 12:58:04,163 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2021-02-23 12:58:04,163 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2021-02-23 12:58:04,163 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2021-02-23 12:58:04,163 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2021-02-23 12:58:04,163 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2021-02-23 12:58:04,163 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2021-02-23 12:58:04,164 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2021-02-23 12:58:04,164 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2021-02-23 12:58:04,164 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2021-02-23 12:58:04,164 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-02-23 12:58:04,164 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-02-23 12:58:04,164 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2021-02-23 12:58:04,165 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2021-02-23 12:58:04,165 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2021-02-23 12:58:04,165 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2021-02-23 12:58:04,165 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-02-23 12:58:04,165 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-02-23 12:58:04,165 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-02-23 12:58:04,166 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2021-02-23 12:58:04,166 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2021-02-23 12:58:04,166 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2021-02-23 12:58:04,166 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2021-02-23 12:58:04,166 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-02-23 12:58:04,166 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-02-23 12:58:04,167 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-02-23 12:58:04,167 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2021-02-23 12:58:04,167 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2021-02-23 12:58:04,167 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2021-02-23 12:58:04,167 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2021-02-23 12:58:04,167 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 12:58:04,168 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 12:58:04,168 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 12:58:04,168 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 12:58:04,168 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-23 12:58:04,168 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-02-23 12:58:04,169 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-02-23 12:58:04,169 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-02-23 12:58:04,169 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-02-23 12:58:04,169 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2021-02-23 12:58:04,169 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-02-23 12:58:04,169 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-02-23 12:58:04,169 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2021-02-23 12:58:04,170 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2021-02-23 12:58:04,170 INFO L130 BoogieDeclarations]: Found specification of procedure test [2021-02-23 12:58:04,170 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2021-02-23 12:58:04,170 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2021-02-23 12:58:04,170 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2021-02-23 12:58:04,170 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2021-02-23 12:58:04,170 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 12:58:04,171 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-02-23 12:58:04,171 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-23 12:58:04,171 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-23 12:58:04,171 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2021-02-23 12:58:04,171 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-23 12:58:04,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-23 12:58:04,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 12:58:04,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-23 12:58:04,172 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2021-02-23 12:58:04,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 12:58:04,172 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2021-02-23 12:58:04,172 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-02-23 12:58:04,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 12:58:04,173 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2021-02-23 12:58:04,173 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2021-02-23 12:58:04,173 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2021-02-23 12:58:04,173 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2021-02-23 12:58:04,173 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2021-02-23 12:58:04,173 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-02-23 12:58:04,173 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2021-02-23 12:58:04,174 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2021-02-23 12:58:04,174 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2021-02-23 12:58:04,174 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-02-23 12:58:04,174 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-02-23 12:58:04,174 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2021-02-23 12:58:04,174 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2021-02-23 12:58:04,175 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-02-23 12:58:04,175 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2021-02-23 12:58:04,175 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2021-02-23 12:58:04,175 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-02-23 12:58:04,175 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2021-02-23 12:58:04,175 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2021-02-23 12:58:04,175 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 12:58:04,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 12:58:04,176 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 12:58:05,809 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 12:58:05,809 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-23 12:58:05,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 12:58:05 BoogieIcfgContainer [2021-02-23 12:58:05,814 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 12:58:05,818 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 12:58:05,818 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 12:58:05,822 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 12:58:05,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 12:58:03" (1/3) ... [2021-02-23 12:58:05,824 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78e6df4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 12:58:05, skipping insertion in model container [2021-02-23 12:58:05,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 12:58:03" (2/3) ... [2021-02-23 12:58:05,824 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78e6df4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 12:58:05, skipping insertion in model container [2021-02-23 12:58:05,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 12:58:05" (3/3) ... [2021-02-23 12:58:05,829 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product47.cil.c [2021-02-23 12:58:05,840 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-23 12:58:05,846 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 12:58:05,867 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 12:58:05,912 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 12:58:05,913 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 12:58:05,914 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-23 12:58:05,914 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 12:58:05,914 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 12:58:05,915 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 12:58:05,915 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 12:58:05,915 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 12:58:05,940 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states. [2021-02-23 12:58:05,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-02-23 12:58:05,951 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 12:58:05,952 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] [2021-02-23 12:58:05,953 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 12:58:05,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 12:58:05,960 INFO L82 PathProgramCache]: Analyzing trace with hash -747897832, now seen corresponding path program 1 times [2021-02-23 12:58:05,971 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 12:58:05,972 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428155618] [2021-02-23 12:58:05,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 12:58:06,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:58:06,361 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:06,363 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:58:06,365 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:06,366 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:58:06,763 WARN L202 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 12:58:06,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 12:58:06,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:58:06,869 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:06,869 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:58:06,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-23 12:58:06,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:58:06,879 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:06,880 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:58:06,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-23 12:58:06,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:58:06,886 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:06,886 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:58:06,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-23 12:58:06,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:58:06,895 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:06,895 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:58:06,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-23 12:58:06,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:58:06,908 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:06,909 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:58:06,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-02-23 12:58:06,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:58:06,919 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:06,920 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:58:06,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-23 12:58:06,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:58:06,928 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:06,929 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:58:06,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-02-23 12:58:06,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:58:06,940 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:06,942 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:58:06,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 12:58:06,965 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428155618] [2021-02-23 12:58:06,966 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 12:58:06,966 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-23 12:58:06,967 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3455879] [2021-02-23 12:58:06,973 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-23 12:58:06,974 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-23 12:58:06,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-23 12:58:06,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-23 12:58:06,994 INFO L87 Difference]: Start difference. First operand 185 states. Second operand 3 states. [2021-02-23 12:58:08,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 12:58:08,303 INFO L93 Difference]: Finished difference Result 329 states and 431 transitions. [2021-02-23 12:58:08,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-23 12:58:08,305 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2021-02-23 12:58:08,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 12:58:08,319 INFO L225 Difference]: With dead ends: 329 [2021-02-23 12:58:08,320 INFO L226 Difference]: Without dead ends: 178 [2021-02-23 12:58:08,325 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-23 12:58:08,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2021-02-23 12:58:08,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 142. [2021-02-23 12:58:08,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2021-02-23 12:58:08,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 169 transitions. [2021-02-23 12:58:08,427 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 169 transitions. Word has length 52 [2021-02-23 12:58:08,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 12:58:08,428 INFO L480 AbstractCegarLoop]: Abstraction has 142 states and 169 transitions. [2021-02-23 12:58:08,428 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-23 12:58:08,428 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 169 transitions. [2021-02-23 12:58:08,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-02-23 12:58:08,432 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 12:58:08,432 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] [2021-02-23 12:58:08,433 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 12:58:08,433 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 12:58:08,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 12:58:08,434 INFO L82 PathProgramCache]: Analyzing trace with hash 1945340680, now seen corresponding path program 1 times [2021-02-23 12:58:08,434 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 12:58:08,434 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67650766] [2021-02-23 12:58:08,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 12:58:08,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:58:08,578 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:08,579 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:58:08,580 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:08,580 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:58:08,584 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:08,584 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:58:08,844 WARN L202 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 12:58:08,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 12:58:08,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:58:08,872 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:08,873 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:58:08,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-23 12:58:08,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:58:08,875 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:08,876 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:58:08,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-23 12:58:08,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:58:08,878 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:08,879 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:58:08,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-23 12:58:08,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:58:08,882 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:08,882 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:58:08,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-23 12:58:08,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:58:08,885 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:08,885 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:58:08,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-23 12:58:08,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:58:08,888 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:08,888 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:58:08,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-02-23 12:58:08,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:58:08,892 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:08,892 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:58:08,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-02-23 12:58:08,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:58:08,895 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:08,895 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:58:08,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 12:58:08,904 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67650766] [2021-02-23 12:58:08,904 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 12:58:08,905 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 12:58:08,905 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723898426] [2021-02-23 12:58:08,907 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 12:58:08,907 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-23 12:58:08,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 12:58:08,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 12:58:08,908 INFO L87 Difference]: Start difference. First operand 142 states and 169 transitions. Second operand 4 states. [2021-02-23 12:58:09,343 WARN L202 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 12:58:10,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 12:58:10,308 INFO L93 Difference]: Finished difference Result 256 states and 314 transitions. [2021-02-23 12:58:10,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-23 12:58:10,309 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2021-02-23 12:58:10,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 12:58:10,312 INFO L225 Difference]: With dead ends: 256 [2021-02-23 12:58:10,313 INFO L226 Difference]: Without dead ends: 162 [2021-02-23 12:58:10,314 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-23 12:58:10,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2021-02-23 12:58:10,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 133. [2021-02-23 12:58:10,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2021-02-23 12:58:10,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 157 transitions. [2021-02-23 12:58:10,376 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 157 transitions. Word has length 53 [2021-02-23 12:58:10,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 12:58:10,376 INFO L480 AbstractCegarLoop]: Abstraction has 133 states and 157 transitions. [2021-02-23 12:58:10,376 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 12:58:10,377 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 157 transitions. [2021-02-23 12:58:10,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-02-23 12:58:10,379 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 12:58:10,379 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] [2021-02-23 12:58:10,380 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-23 12:58:10,380 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 12:58:10,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 12:58:10,380 INFO L82 PathProgramCache]: Analyzing trace with hash 1888627779, now seen corresponding path program 1 times [2021-02-23 12:58:10,381 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 12:58:10,381 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004565005] [2021-02-23 12:58:10,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 12:58:10,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:58:10,479 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:10,479 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:58:10,483 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:10,483 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:58:10,485 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:10,485 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:58:10,489 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:10,490 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:58:10,495 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:10,496 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 12:58:10,502 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:10,502 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 12:58:10,503 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:10,504 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 12:58:10,505 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:10,505 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:58:10,763 WARN L202 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 12:58:10,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 12:58:10,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:58:10,801 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:10,802 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 12:58:10,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-23 12:58:10,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:58:10,807 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:10,807 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:58:10,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-23 12:58:10,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:58:10,811 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:10,812 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:58:10,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-23 12:58:10,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:58:10,817 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:10,818 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:58:10,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-23 12:58:10,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:58:10,830 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:10,831 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:58:10,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-23 12:58:10,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:58:10,834 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:10,835 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:58:10,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-02-23 12:58:10,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:58:10,838 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:10,838 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:58:10,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-02-23 12:58:10,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:58:10,841 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:10,842 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:58:10,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 12:58:10,853 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004565005] [2021-02-23 12:58:10,853 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 12:58:10,853 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-23 12:58:10,853 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680217928] [2021-02-23 12:58:10,854 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-23 12:58:10,854 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-23 12:58:10,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-23 12:58:10,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-02-23 12:58:10,855 INFO L87 Difference]: Start difference. First operand 133 states and 157 transitions. Second operand 8 states. [2021-02-23 12:58:11,259 WARN L202 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 12:58:11,615 WARN L202 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 12:58:11,892 WARN L202 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 12:58:12,172 WARN L202 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 12:58:12,879 WARN L202 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 12:58:14,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 12:58:14,939 INFO L93 Difference]: Finished difference Result 461 states and 574 transitions. [2021-02-23 12:58:14,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-23 12:58:14,940 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 57 [2021-02-23 12:58:14,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 12:58:14,950 INFO L225 Difference]: With dead ends: 461 [2021-02-23 12:58:14,950 INFO L226 Difference]: Without dead ends: 352 [2021-02-23 12:58:14,952 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-02-23 12:58:14,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2021-02-23 12:58:15,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 290. [2021-02-23 12:58:15,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2021-02-23 12:58:15,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 353 transitions. [2021-02-23 12:58:15,052 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 353 transitions. Word has length 57 [2021-02-23 12:58:15,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 12:58:15,053 INFO L480 AbstractCegarLoop]: Abstraction has 290 states and 353 transitions. [2021-02-23 12:58:15,053 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-23 12:58:15,053 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 353 transitions. [2021-02-23 12:58:15,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-02-23 12:58:15,056 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 12:58:15,057 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] [2021-02-23 12:58:15,057 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-23 12:58:15,057 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 12:58:15,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 12:58:15,057 INFO L82 PathProgramCache]: Analyzing trace with hash -1832004726, now seen corresponding path program 1 times [2021-02-23 12:58:15,058 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 12:58:15,058 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500053840] [2021-02-23 12:58:15,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 12:58:15,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:58:15,177 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:15,178 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:58:15,181 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:15,181 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:58:15,182 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:15,182 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:58:15,183 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:15,183 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:58:15,184 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:15,185 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:58:15,186 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:15,186 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:58:15,191 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:15,191 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:58:15,196 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:15,196 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:58:15,448 WARN L202 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 12:58:15,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 12:58:15,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:58:15,496 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:15,496 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 12:58:15,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-23 12:58:15,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:58:15,499 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:15,500 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:58:15,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-23 12:58:15,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:58:15,502 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:15,503 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:58:15,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-23 12:58:15,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:58:15,506 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:15,506 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:58:15,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-23 12:58:15,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:58:15,509 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:15,509 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:58:15,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-23 12:58:15,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:58:15,528 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:15,529 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:58:15,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-02-23 12:58:15,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:58:15,532 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:15,533 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:58:15,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-02-23 12:58:15,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:58:15,537 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:15,537 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:58:15,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-23 12:58:15,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:58:15,549 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:15,550 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:58:15,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 12:58:15,563 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500053840] [2021-02-23 12:58:15,563 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 12:58:15,563 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-23 12:58:15,563 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780975887] [2021-02-23 12:58:15,564 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-23 12:58:15,564 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-23 12:58:15,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-23 12:58:15,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-02-23 12:58:15,565 INFO L87 Difference]: Start difference. First operand 290 states and 353 transitions. Second operand 8 states. [2021-02-23 12:58:15,920 WARN L202 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 12:58:17,301 WARN L202 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 12:58:17,683 WARN L202 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 12:58:17,990 WARN L202 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 12:58:18,302 WARN L202 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 12:58:19,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 12:58:19,303 INFO L93 Difference]: Finished difference Result 898 states and 1181 transitions. [2021-02-23 12:58:19,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-23 12:58:19,304 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 63 [2021-02-23 12:58:19,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 12:58:19,309 INFO L225 Difference]: With dead ends: 898 [2021-02-23 12:58:19,309 INFO L226 Difference]: Without dead ends: 632 [2021-02-23 12:58:19,312 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2021-02-23 12:58:19,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 632 states. [2021-02-23 12:58:19,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 632 to 561. [2021-02-23 12:58:19,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 561 states. [2021-02-23 12:58:19,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 695 transitions. [2021-02-23 12:58:19,488 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 695 transitions. Word has length 63 [2021-02-23 12:58:19,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 12:58:19,489 INFO L480 AbstractCegarLoop]: Abstraction has 561 states and 695 transitions. [2021-02-23 12:58:19,489 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-23 12:58:19,489 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 695 transitions. [2021-02-23 12:58:19,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-02-23 12:58:19,493 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 12:58:19,493 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] [2021-02-23 12:58:19,494 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-23 12:58:19,494 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 12:58:19,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 12:58:19,495 INFO L82 PathProgramCache]: Analyzing trace with hash 1175227952, now seen corresponding path program 1 times [2021-02-23 12:58:19,495 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 12:58:19,495 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885276760] [2021-02-23 12:58:19,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 12:58:19,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 12:58:19,575 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 12:58:19,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 12:58:19,651 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 12:58:19,733 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-02-23 12:58:19,733 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-23 12:58:19,733 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-23 12:58:19,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 12:58:19 BoogieIcfgContainer [2021-02-23 12:58:19,863 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-23 12:58:19,865 INFO L168 Benchmark]: Toolchain (without parser) took 16691.38 ms. Allocated memory was 154.1 MB in the beginning and 426.8 MB in the end (delta: 272.6 MB). Free memory was 135.4 MB in the beginning and 250.5 MB in the end (delta: -115.2 MB). Peak memory consumption was 157.4 MB. Max. memory is 8.0 GB. [2021-02-23 12:58:19,865 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 154.1 MB. Free memory is still 125.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 12:58:19,866 INFO L168 Benchmark]: CACSL2BoogieTranslator took 665.54 ms. Allocated memory is still 154.1 MB. Free memory was 134.3 MB in the beginning and 112.0 MB in the end (delta: 22.4 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2021-02-23 12:58:19,866 INFO L168 Benchmark]: Boogie Preprocessor took 194.95 ms. Allocated memory is still 154.1 MB. Free memory was 112.0 MB in the beginning and 132.2 MB in the end (delta: -20.2 MB). Peak memory consumption was 1.6 MB. Max. memory is 8.0 GB. [2021-02-23 12:58:19,868 INFO L168 Benchmark]: RCFGBuilder took 1762.86 ms. Allocated memory was 154.1 MB in the beginning and 185.6 MB in the end (delta: 31.5 MB). Free memory was 132.2 MB in the beginning and 122.3 MB in the end (delta: 9.9 MB). Peak memory consumption was 52.3 MB. Max. memory is 8.0 GB. [2021-02-23 12:58:19,869 INFO L168 Benchmark]: TraceAbstraction took 14045.13 ms. Allocated memory was 185.6 MB in the beginning and 426.8 MB in the end (delta: 241.2 MB). Free memory was 121.8 MB in the beginning and 250.5 MB in the end (delta: -128.8 MB). Peak memory consumption was 112.9 MB. Max. memory is 8.0 GB. [2021-02-23 12:58:19,875 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 154.1 MB. Free memory is still 125.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 665.54 ms. Allocated memory is still 154.1 MB. Free memory was 134.3 MB in the beginning and 112.0 MB in the end (delta: 22.4 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 194.95 ms. Allocated memory is still 154.1 MB. Free memory was 112.0 MB in the beginning and 132.2 MB in the end (delta: -20.2 MB). Peak memory consumption was 1.6 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1762.86 ms. Allocated memory was 154.1 MB in the beginning and 185.6 MB in the end (delta: 31.5 MB). Free memory was 132.2 MB in the beginning and 122.3 MB in the end (delta: 9.9 MB). Peak memory consumption was 52.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 14045.13 ms. Allocated memory was 185.6 MB in the beginning and 426.8 MB in the end (delta: 241.2 MB). Free memory was 121.8 MB in the beginning and 250.5 MB in the end (delta: -128.8 MB). Peak memory consumption was 112.9 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 46]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L51] int cleanupTimeShifts = 4; [L359] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L631] int pumpRunning = 0; [L632] int systemActive = 1; [L843] int waterLevel = 1; [L844] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=179, \old(head)=165, \old(head)=182, \old(methaneLevelCritical)=147, \old(pumpRunning)=138, \old(systemActive)=137, \old(waterLevel)=141, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L132] int retValue_acc ; [L133] 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] [L137] 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] [L138] 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] [L139] 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] [L181] int retValue_acc ; [L184] retValue_acc = 1 [L185] 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] [L139] 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] [L139] tmp = valid_product() [L141] 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] [L143] 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] [L144] 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] [L123] 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] [L558] int splverifierCounter ; [L559] int tmp ; [L560] int tmp___0 ; [L561] int tmp___1 ; [L562] int tmp___2 ; [L565] 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] [L567] 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] [L569] 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] [L575] tmp = __VERIFIER_nondet_int() [L577] 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] [L579] 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] [L861] COND TRUE waterLevel < 2 [L862] 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] [L579] 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] [L585] tmp___0 = __VERIFIER_nondet_int() [L587] 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] [L595] tmp___2 = __VERIFIER_nondet_int() [L597] COND FALSE !(\read(tmp___2)) [L601] tmp___1 = __VERIFIER_nondet_int() [L603] 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] [L605] 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] [L830] 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] [L837] 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] [L605] 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] [L612] 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] [L639] 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] [L646] 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] [L654] 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] [L938] int tmp ; [L939] int tmp___0 ; [L940] 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] [L944] 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] [L882] int retValue_acc ; [L885] retValue_acc = methaneLevelCritical [L886] 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] [L944] 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] [L944] tmp = isMethaneLevelCritical() [L946] 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] [L950] 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] [L914] int retValue_acc ; [L917] retValue_acc = waterLevel [L918] 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] [L950] 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] [L950] tmp___0 = getWaterLevel() [L952] 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] [L954] 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] [L763] int retValue_acc ; [L766] retValue_acc = pumpRunning [L767] 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] [L954] 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] [L954] tmp___1 = isPumpRunning() [L956] 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] [L960] 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] [L46] reach_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 244 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 13.8s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 10.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 535 SDtfs, 796 SDslu, 390 SDs, 0 SdLazy, 2119 SolverSat, 459 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 102 GetRequests, 74 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 4.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=561occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 4 MinimizatonAttempts, 198 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 292 NumberOfCodeBlocks, 292 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 221 ConstructedInterpolants, 0 QuantifiedInterpolants, 65502 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...