/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_product20.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 12:57:21,884 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 12:57:21,887 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 12:57:21,924 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-23 12:57:21,925 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-23 12:57:21,926 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-23 12:57:21,937 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-23 12:57:21,946 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-23 12:57:21,948 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-23 12:57:21,949 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-23 12:57:21,951 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-23 12:57:21,952 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-23 12:57:21,953 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 12:57:21,954 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 12:57:21,956 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 12:57:21,957 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 12:57:21,958 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 12:57:21,959 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 12:57:21,962 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 12:57:21,964 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 12:57:21,966 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 12:57:21,968 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 12:57:21,969 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 12:57:21,970 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 12:57:21,974 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-23 12:57:21,974 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-23 12:57:21,975 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-23 12:57:21,976 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-23 12:57:21,976 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-23 12:57:21,978 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-23 12:57:21,978 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-23 12:57:21,979 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-23 12:57:21,980 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-23 12:57:21,981 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-23 12:57:21,982 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-23 12:57:21,983 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-23 12:57:21,984 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-23 12:57:21,984 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-23 12:57:21,984 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 12:57:21,985 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 12:57:21,986 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 12:57:21,990 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 12:57:22,016 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 12:57:22,016 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 12:57:22,018 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-23 12:57:22,018 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-23 12:57:22,019 INFO L138 SettingsManager]: * Use SBE=true [2021-02-23 12:57:22,019 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 12:57:22,019 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 12:57:22,019 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 12:57:22,020 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 12:57:22,020 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 12:57:22,020 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 12:57:22,020 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 12:57:22,021 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 12:57:22,021 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 12:57:22,021 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 12:57:22,021 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 12:57:22,022 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 12:57:22,022 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 12:57:22,022 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-23 12:57:22,022 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 12:57:22,023 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 12:57:22,023 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 12:57:22,023 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-23 12:57:22,024 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-23 12:57:22,024 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-23 12:57:22,024 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-23 12:57:22,024 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 12:57:22,025 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-02-23 12:57:22,025 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-23 12:57:22,426 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 12:57:22,453 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 12:57:22,456 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 12:57:22,457 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 12:57:22,458 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 12:57:22,459 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product20.cil.c [2021-02-23 12:57:22,565 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb9f2429c/be68cb65bcb245958f62723971acbae8/FLAG7c370c659 [2021-02-23 12:57:23,285 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 12:57:23,286 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product20.cil.c [2021-02-23 12:57:23,311 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb9f2429c/be68cb65bcb245958f62723971acbae8/FLAG7c370c659 [2021-02-23 12:57:23,573 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb9f2429c/be68cb65bcb245958f62723971acbae8 [2021-02-23 12:57:23,577 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 12:57:23,590 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 12:57:23,593 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 12:57:23,593 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 12:57:23,597 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 12:57:23,598 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 12:57:23" (1/1) ... [2021-02-23 12:57:23,600 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70c93f86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 12:57:23, skipping insertion in model container [2021-02-23 12:57:23,600 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 12:57:23" (1/1) ... [2021-02-23 12:57:23,609 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 12:57:23,651 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 12:57:23,998 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_product20.cil.c[17631,17644] [2021-02-23 12:57:24,002 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 12:57:24,014 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 12:57:24,122 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_product20.cil.c[17631,17644] [2021-02-23 12:57:24,123 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 12:57:24,172 INFO L208 MainTranslator]: Completed translation [2021-02-23 12:57:24,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 12:57:24 WrapperNode [2021-02-23 12:57:24,173 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 12:57:24,174 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 12:57:24,174 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 12:57:24,176 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 12:57:24,192 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 12:57:24" (1/1) ... [2021-02-23 12:57:24,193 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 12:57:24" (1/1) ... [2021-02-23 12:57:24,240 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 12:57:24" (1/1) ... [2021-02-23 12:57:24,241 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 12:57:24" (1/1) ... [2021-02-23 12:57:24,297 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 12:57:24" (1/1) ... [2021-02-23 12:57:24,319 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 12:57:24" (1/1) ... [2021-02-23 12:57:24,328 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 12:57:24" (1/1) ... [2021-02-23 12:57:24,344 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 12:57:24,348 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 12:57:24,349 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 12:57:24,349 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 12:57:24,350 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 12:57:24" (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 12:57:24,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 12:57:24,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 12:57:24,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-02-23 12:57:24,465 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 12:57:24,465 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-02-23 12:57:24,465 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2021-02-23 12:57:24,465 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2021-02-23 12:57:24,465 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2021-02-23 12:57:24,466 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2021-02-23 12:57:24,466 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2021-02-23 12:57:24,467 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2021-02-23 12:57:24,467 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2021-02-23 12:57:24,468 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2021-02-23 12:57:24,468 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2021-02-23 12:57:24,469 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-02-23 12:57:24,469 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2021-02-23 12:57:24,470 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2021-02-23 12:57:24,470 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2021-02-23 12:57:24,471 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 12:57:24,471 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2021-02-23 12:57:24,471 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-02-23 12:57:24,486 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-02-23 12:57:24,486 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2021-02-23 12:57:24,486 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2021-02-23 12:57:24,487 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-02-23 12:57:24,487 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-02-23 12:57:24,489 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-02-23 12:57:24,494 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2021-02-23 12:57:24,494 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2021-02-23 12:57:24,495 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2021-02-23 12:57:24,495 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2021-02-23 12:57:24,495 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2021-02-23 12:57:24,495 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2021-02-23 12:57:24,495 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-02-23 12:57:24,495 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-02-23 12:57:24,496 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-02-23 12:57:24,496 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2021-02-23 12:57:24,496 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2021-02-23 12:57:24,496 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2021-02-23 12:57:24,496 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-02-23 12:57:24,496 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 12:57:24,496 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 12:57:24,496 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 12:57:24,497 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 12:57:24,497 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-23 12:57:24,497 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-02-23 12:57:24,497 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-02-23 12:57:24,497 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2021-02-23 12:57:24,497 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2021-02-23 12:57:24,497 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2021-02-23 12:57:24,497 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-23 12:57:24,497 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-23 12:57:24,498 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2021-02-23 12:57:24,498 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-23 12:57:24,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-23 12:57:24,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 12:57:24,498 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-23 12:57:24,498 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2021-02-23 12:57:24,498 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 12:57:24,498 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2021-02-23 12:57:24,499 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-02-23 12:57:24,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 12:57:24,501 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2021-02-23 12:57:24,501 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2021-02-23 12:57:24,501 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2021-02-23 12:57:24,502 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-02-23 12:57:24,502 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-02-23 12:57:24,502 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2021-02-23 12:57:24,503 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-02-23 12:57:24,503 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-02-23 12:57:24,503 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2021-02-23 12:57:24,503 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2021-02-23 12:57:24,504 INFO L130 BoogieDeclarations]: Found specification of procedure test [2021-02-23 12:57:24,504 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2021-02-23 12:57:24,504 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 12:57:24,505 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-02-23 12:57:24,505 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-02-23 12:57:24,505 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-02-23 12:57:24,506 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2021-02-23 12:57:24,506 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2021-02-23 12:57:24,506 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2021-02-23 12:57:24,506 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2021-02-23 12:57:24,507 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2021-02-23 12:57:24,507 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2021-02-23 12:57:24,508 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-02-23 12:57:24,509 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2021-02-23 12:57:24,509 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2021-02-23 12:57:24,509 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2021-02-23 12:57:24,509 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-02-23 12:57:24,510 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2021-02-23 12:57:24,510 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-02-23 12:57:24,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 12:57:24,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 12:57:24,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 12:57:25,803 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 12:57:25,803 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-23 12:57:25,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 12:57:25 BoogieIcfgContainer [2021-02-23 12:57:25,806 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 12:57:25,808 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 12:57:25,809 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 12:57:25,813 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 12:57:25,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 12:57:23" (1/3) ... [2021-02-23 12:57:25,814 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32f00597 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 12:57:25, skipping insertion in model container [2021-02-23 12:57:25,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 12:57:24" (2/3) ... [2021-02-23 12:57:25,815 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32f00597 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 12:57:25, skipping insertion in model container [2021-02-23 12:57:25,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 12:57:25" (3/3) ... [2021-02-23 12:57:25,817 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product20.cil.c [2021-02-23 12:57:25,825 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-23 12:57:25,832 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 12:57:25,856 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 12:57:25,910 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 12:57:25,910 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 12:57:25,910 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-23 12:57:25,911 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 12:57:25,911 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 12:57:25,911 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 12:57:25,911 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 12:57:25,911 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 12:57:25,977 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states. [2021-02-23 12:57:26,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-02-23 12:57:26,000 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 12:57:26,006 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 12:57:26,007 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 12:57:26,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 12:57:26,014 INFO L82 PathProgramCache]: Analyzing trace with hash 855823247, now seen corresponding path program 1 times [2021-02-23 12:57:26,026 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 12:57:26,026 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754215890] [2021-02-23 12:57:26,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 12:57:26,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:26,420 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:26,422 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:26,423 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:26,424 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:26,861 WARN L202 SmtUtils]: Spent 416.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 12:57:26,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 12:57:26,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:26,912 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:26,913 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:26,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-23 12:57:26,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:26,918 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:26,919 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:26,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-23 12:57:26,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:26,923 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:26,924 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:26,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-23 12:57:26,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:26,935 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:26,935 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:26,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-23 12:57:26,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:26,948 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:26,948 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:26,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-02-23 12:57:26,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:26,956 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:26,957 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:26,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-23 12:57:26,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:26,967 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:26,970 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:26,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-02-23 12:57:26,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:26,978 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:26,980 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:26,997 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 12:57:26,998 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754215890] [2021-02-23 12:57:26,999 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 12:57:26,999 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-23 12:57:27,000 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34777146] [2021-02-23 12:57:27,006 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-23 12:57:27,007 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-23 12:57:27,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-23 12:57:27,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-23 12:57:27,026 INFO L87 Difference]: Start difference. First operand 166 states. Second operand 3 states. [2021-02-23 12:57:28,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 12:57:28,422 INFO L93 Difference]: Finished difference Result 282 states and 370 transitions. [2021-02-23 12:57:28,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-23 12:57:28,425 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2021-02-23 12:57:28,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 12:57:28,439 INFO L225 Difference]: With dead ends: 282 [2021-02-23 12:57:28,440 INFO L226 Difference]: Without dead ends: 153 [2021-02-23 12:57:28,444 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-23 12:57:28,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2021-02-23 12:57:28,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 120. [2021-02-23 12:57:28,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2021-02-23 12:57:28,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 140 transitions. [2021-02-23 12:57:28,539 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 140 transitions. Word has length 52 [2021-02-23 12:57:28,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 12:57:28,540 INFO L480 AbstractCegarLoop]: Abstraction has 120 states and 140 transitions. [2021-02-23 12:57:28,540 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-23 12:57:28,540 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 140 transitions. [2021-02-23 12:57:28,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-02-23 12:57:28,544 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 12:57:28,544 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 12:57:28,544 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 12:57:28,545 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 12:57:28,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 12:57:28,545 INFO L82 PathProgramCache]: Analyzing trace with hash 343847543, now seen corresponding path program 1 times [2021-02-23 12:57:28,546 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 12:57:28,546 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116360483] [2021-02-23 12:57:28,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 12:57:28,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:28,690 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:28,691 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:28,691 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:28,692 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:57:28,696 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:28,697 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:29,054 WARN L202 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 12:57:29,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 12:57:29,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:29,083 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:29,084 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:29,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-23 12:57:29,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:29,087 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:29,087 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:29,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-23 12:57:29,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:29,090 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:29,091 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:29,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-23 12:57:29,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:29,094 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:29,095 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:29,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-23 12:57:29,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:29,098 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:29,098 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:29,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-23 12:57:29,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:29,101 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:29,102 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:29,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-02-23 12:57:29,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:29,104 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:29,105 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:29,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-02-23 12:57:29,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:29,108 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:29,109 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:29,118 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 12:57:29,118 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116360483] [2021-02-23 12:57:29,118 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 12:57:29,118 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 12:57:29,119 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697766893] [2021-02-23 12:57:29,120 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 12:57:29,121 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-23 12:57:29,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 12:57:29,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 12:57:29,122 INFO L87 Difference]: Start difference. First operand 120 states and 140 transitions. Second operand 4 states. [2021-02-23 12:57:29,776 WARN L202 SmtUtils]: Spent 389.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 12:57:30,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 12:57:30,612 INFO L93 Difference]: Finished difference Result 205 states and 249 transitions. [2021-02-23 12:57:30,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-23 12:57:30,613 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2021-02-23 12:57:30,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 12:57:30,616 INFO L225 Difference]: With dead ends: 205 [2021-02-23 12:57:30,616 INFO L226 Difference]: Without dead ends: 137 [2021-02-23 12:57:30,618 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-23 12:57:30,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2021-02-23 12:57:30,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 111. [2021-02-23 12:57:30,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2021-02-23 12:57:30,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 128 transitions. [2021-02-23 12:57:30,661 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 128 transitions. Word has length 53 [2021-02-23 12:57:30,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 12:57:30,662 INFO L480 AbstractCegarLoop]: Abstraction has 111 states and 128 transitions. [2021-02-23 12:57:30,662 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 12:57:30,662 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 128 transitions. [2021-02-23 12:57:30,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-02-23 12:57:30,664 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 12:57:30,664 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] [2021-02-23 12:57:30,665 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-23 12:57:30,665 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 12:57:30,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 12:57:30,665 INFO L82 PathProgramCache]: Analyzing trace with hash 1043391324, now seen corresponding path program 1 times [2021-02-23 12:57:30,666 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 12:57:30,666 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050826700] [2021-02-23 12:57:30,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 12:57:30,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:30,828 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:30,830 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:57:30,833 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:30,834 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:57:30,834 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:30,835 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:57:30,841 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:30,842 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:57:30,848 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:30,848 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 12:57:30,855 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:30,856 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 12:57:30,857 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:30,857 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 12:57:30,858 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:30,858 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:31,222 WARN L202 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 12:57:31,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 12:57:31,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:31,281 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:31,281 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 12:57:31,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-23 12:57:31,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:31,287 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:31,288 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:31,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-23 12:57:31,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:31,305 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:31,305 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:31,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-23 12:57:31,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:31,333 WARN L141 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size [2021-02-23 12:57:31,335 WARN L147 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size 11 [2021-02-23 12:57:31,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-23 12:57:31,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:31,355 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:31,356 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:31,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-23 12:57:31,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:31,361 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:31,362 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:31,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-02-23 12:57:31,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:31,365 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:31,365 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:31,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-02-23 12:57:31,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:31,368 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:31,369 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:31,383 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 12:57:31,383 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050826700] [2021-02-23 12:57:31,384 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 12:57:31,384 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-23 12:57:31,384 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39404989] [2021-02-23 12:57:31,385 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-23 12:57:31,385 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-23 12:57:31,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-23 12:57:31,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-02-23 12:57:31,386 INFO L87 Difference]: Start difference. First operand 111 states and 128 transitions. Second operand 8 states. [2021-02-23 12:57:31,905 WARN L202 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 12:57:32,359 WARN L202 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 12:57:32,748 WARN L202 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 12:57:33,169 WARN L202 SmtUtils]: Spent 399.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 12:57:34,099 WARN L202 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 12:57:35,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 12:57:35,915 INFO L93 Difference]: Finished difference Result 390 states and 482 transitions. [2021-02-23 12:57:35,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-23 12:57:35,916 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 58 [2021-02-23 12:57:35,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 12:57:35,931 INFO L225 Difference]: With dead ends: 390 [2021-02-23 12:57:35,931 INFO L226 Difference]: Without dead ends: 303 [2021-02-23 12:57:35,933 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-02-23 12:57:35,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2021-02-23 12:57:36,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 242. [2021-02-23 12:57:36,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2021-02-23 12:57:36,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 291 transitions. [2021-02-23 12:57:36,051 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 291 transitions. Word has length 58 [2021-02-23 12:57:36,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 12:57:36,052 INFO L480 AbstractCegarLoop]: Abstraction has 242 states and 291 transitions. [2021-02-23 12:57:36,052 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-23 12:57:36,052 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 291 transitions. [2021-02-23 12:57:36,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-02-23 12:57:36,056 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 12:57:36,056 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 12:57:36,056 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-23 12:57:36,056 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 12:57:36,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 12:57:36,061 INFO L82 PathProgramCache]: Analyzing trace with hash -1597902135, now seen corresponding path program 1 times [2021-02-23 12:57:36,061 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 12:57:36,061 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373262341] [2021-02-23 12:57:36,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 12:57:36,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:36,134 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:36,135 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:57:36,138 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:36,139 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:57:36,139 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:36,140 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:57:36,140 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:36,141 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:57:36,141 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:36,142 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:57:36,142 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:36,143 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:57:36,147 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:36,147 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:57:36,152 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:36,153 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:36,494 WARN L202 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 12:57:36,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 12:57:36,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:36,529 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:36,530 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 12:57:36,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-23 12:57:36,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:36,534 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:36,534 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:36,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-23 12:57:36,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:36,537 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:36,538 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:36,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-23 12:57:36,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:36,542 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:36,542 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:36,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-23 12:57:36,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:36,545 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:36,546 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:36,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-23 12:57:36,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:36,562 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:36,562 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:36,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-02-23 12:57:36,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:36,566 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:36,566 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:36,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-02-23 12:57:36,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:36,571 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:36,571 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:57:36,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-23 12:57:36,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:36,589 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:36,590 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:36,601 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 12:57:36,601 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373262341] [2021-02-23 12:57:36,602 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 12:57:36,602 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-23 12:57:36,602 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259800552] [2021-02-23 12:57:36,603 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-23 12:57:36,603 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-23 12:57:36,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-23 12:57:36,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-02-23 12:57:36,604 INFO L87 Difference]: Start difference. First operand 242 states and 291 transitions. Second operand 8 states. [2021-02-23 12:57:37,111 WARN L202 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 12:57:38,727 WARN L202 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 12:57:39,155 WARN L202 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 12:57:39,598 WARN L202 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 12:57:39,954 WARN L202 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 12:57:40,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 12:57:40,750 INFO L93 Difference]: Finished difference Result 741 states and 971 transitions. [2021-02-23 12:57:40,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-23 12:57:40,751 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 63 [2021-02-23 12:57:40,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 12:57:40,757 INFO L225 Difference]: With dead ends: 741 [2021-02-23 12:57:40,758 INFO L226 Difference]: Without dead ends: 523 [2021-02-23 12:57:40,759 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2021-02-23 12:57:40,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2021-02-23 12:57:40,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 457. [2021-02-23 12:57:40,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 457 states. [2021-02-23 12:57:40,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 563 transitions. [2021-02-23 12:57:40,891 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 563 transitions. Word has length 63 [2021-02-23 12:57:40,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 12:57:40,892 INFO L480 AbstractCegarLoop]: Abstraction has 457 states and 563 transitions. [2021-02-23 12:57:40,892 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-23 12:57:40,892 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 563 transitions. [2021-02-23 12:57:40,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-02-23 12:57:40,895 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 12:57:40,896 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 12:57:40,896 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-23 12:57:40,896 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 12:57:40,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 12:57:40,897 INFO L82 PathProgramCache]: Analyzing trace with hash -2038745073, now seen corresponding path program 1 times [2021-02-23 12:57:40,897 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 12:57:40,897 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459022346] [2021-02-23 12:57:40,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 12:57:40,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 12:57:40,973 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 12:57:41,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 12:57:41,034 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 12:57:41,115 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-02-23 12:57:41,115 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-23 12:57:41,116 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-23 12:57:41,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 12:57:41 BoogieIcfgContainer [2021-02-23 12:57:41,241 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-23 12:57:41,243 INFO L168 Benchmark]: Toolchain (without parser) took 17663.17 ms. Allocated memory was 165.7 MB in the beginning and 361.8 MB in the end (delta: 196.1 MB). Free memory was 140.7 MB in the beginning and 170.9 MB in the end (delta: -30.3 MB). Peak memory consumption was 166.5 MB. Max. memory is 8.0 GB. [2021-02-23 12:57:41,243 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 165.7 MB. Free memory is still 136.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 12:57:41,244 INFO L168 Benchmark]: CACSL2BoogieTranslator took 580.20 ms. Allocated memory is still 165.7 MB. Free memory was 139.5 MB in the beginning and 118.9 MB in the end (delta: 20.6 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2021-02-23 12:57:41,245 INFO L168 Benchmark]: Boogie Preprocessor took 170.41 ms. Allocated memory is still 165.7 MB. Free memory was 118.9 MB in the beginning and 114.9 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2021-02-23 12:57:41,245 INFO L168 Benchmark]: RCFGBuilder took 1458.08 ms. Allocated memory is still 165.7 MB. Free memory was 114.9 MB in the beginning and 64.5 MB in the end (delta: 50.4 MB). Peak memory consumption was 50.7 MB. Max. memory is 8.0 GB. [2021-02-23 12:57:41,246 INFO L168 Benchmark]: TraceAbstraction took 15433.31 ms. Allocated memory was 165.7 MB in the beginning and 361.8 MB in the end (delta: 196.1 MB). Free memory was 64.0 MB in the beginning and 170.9 MB in the end (delta: -106.9 MB). Peak memory consumption was 88.6 MB. Max. memory is 8.0 GB. [2021-02-23 12:57:41,249 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 165.7 MB. Free memory is still 136.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 580.20 ms. Allocated memory is still 165.7 MB. Free memory was 139.5 MB in the beginning and 118.9 MB in the end (delta: 20.6 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 170.41 ms. Allocated memory is still 165.7 MB. Free memory was 118.9 MB in the beginning and 114.9 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1458.08 ms. Allocated memory is still 165.7 MB. Free memory was 114.9 MB in the beginning and 64.5 MB in the end (delta: 50.4 MB). Peak memory consumption was 50.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 15433.31 ms. Allocated memory was 165.7 MB in the beginning and 361.8 MB in the end (delta: 196.1 MB). Free memory was 64.0 MB in the beginning and 170.9 MB in the end (delta: -106.9 MB). Peak memory consumption was 88.6 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 929]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L249] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L446] int cleanupTimeShifts = 4; [L592] int pumpRunning = 0; [L593] int systemActive = 1; [L836] int waterLevel = 1; [L837] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=179, \old(head)=182, \old(head)=166, \old(methaneLevelCritical)=149, \old(pumpRunning)=139, \old(systemActive)=138, \old(waterLevel)=142, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L524] int retValue_acc ; [L525] 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] [L529] 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] [L530] 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] [L531] 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] [L71] int retValue_acc ; [L74] retValue_acc = 1 [L75] 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] [L531] 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] [L531] tmp = valid_product() [L533] 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] [L535] 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] [L536] 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] [L518] 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] [L768] int splverifierCounter ; [L769] int tmp ; [L770] int tmp___0 ; [L771] int tmp___1 ; [L772] int tmp___2 ; [L775] 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] [L777] 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] [L779] 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] [L785] tmp = __VERIFIER_nondet_int() [L787] 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] [L789] 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] [L854] COND TRUE waterLevel < 2 [L855] 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] [L789] 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] [L795] tmp___0 = __VERIFIER_nondet_int() [L797] 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] [L805] tmp___2 = __VERIFIER_nondet_int() [L807] COND FALSE !(\read(tmp___2)) [L813] tmp___1 = __VERIFIER_nondet_int() [L815] 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] [L817] 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] [L747] 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] [L754] 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] [L817] 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] [L824] 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] [L599] 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] [L606] 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] [L614] 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] [L552] int tmp ; [L553] int tmp___0 ; [L554] 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] [L558] 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] [L875] int retValue_acc ; [L878] retValue_acc = methaneLevelCritical [L879] 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] [L558] 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] [L558] tmp = isMethaneLevelCritical() [L560] 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] [L564] 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] [L907] int retValue_acc ; [L910] retValue_acc = waterLevel [L911] 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] [L564] 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] [L564] tmp___0 = getWaterLevel() [L566] 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] [L568] 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] [L680] int retValue_acc ; [L683] retValue_acc = pumpRunning [L684] 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] [L568] 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] [L568] tmp___1 = isPumpRunning() [L570] 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] [L574] 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] [L929] 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 40 procedures, 230 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 15.2s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 11.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 454 SDtfs, 690 SDslu, 339 SDs, 0 SdLazy, 1733 SolverSat, 435 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 102 GetRequests, 74 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 5.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=457occurred 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: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 186 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 293 NumberOfCodeBlocks, 293 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 222 ConstructedInterpolants, 0 QuantifiedInterpolants, 66054 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...