/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_product59.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-19 17:05:19,452 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-19 17:05:19,456 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-19 17:05:19,512 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-19 17:05:19,512 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-19 17:05:19,514 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-19 17:05:19,516 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-19 17:05:19,529 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-19 17:05:19,532 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-19 17:05:19,538 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-19 17:05:19,539 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-19 17:05:19,540 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-19 17:05:19,541 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-19 17:05:19,544 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-19 17:05:19,546 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-19 17:05:19,548 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-19 17:05:19,552 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-19 17:05:19,554 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-19 17:05:19,563 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-19 17:05:19,567 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-19 17:05:19,569 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-19 17:05:19,570 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-19 17:05:19,572 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-19 17:05:19,573 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-19 17:05:19,582 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-19 17:05:19,582 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-19 17:05:19,583 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-19 17:05:19,589 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-19 17:05:19,589 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-19 17:05:19,591 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-19 17:05:19,591 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-19 17:05:19,592 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-19 17:05:19,594 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-19 17:05:19,594 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-19 17:05:19,596 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-19 17:05:19,596 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-19 17:05:19,597 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-19 17:05:19,597 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-19 17:05:19,598 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-19 17:05:19,598 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-19 17:05:19,599 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-19 17:05:19,603 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 [2021-02-19 17:05:19,640 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-19 17:05:19,640 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-19 17:05:19,642 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-19 17:05:19,642 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-19 17:05:19,642 INFO L138 SettingsManager]: * Use SBE=true [2021-02-19 17:05:19,642 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-19 17:05:19,643 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-19 17:05:19,643 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-19 17:05:19,643 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-19 17:05:19,643 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-19 17:05:19,644 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-19 17:05:19,644 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-19 17:05:19,644 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-19 17:05:19,644 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-19 17:05:19,645 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-19 17:05:19,645 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-19 17:05:19,645 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-19 17:05:19,645 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-19 17:05:19,646 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-19 17:05:19,646 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-19 17:05:19,646 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-19 17:05:19,646 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-19 17:05:19,647 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-19 17:05:19,647 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-19 17:05:19,647 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-19 17:05:19,647 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-19 17:05:19,648 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-19 17:05:19,648 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-02-19 17:05:19,648 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-19 17:05:20,017 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-19 17:05:20,042 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-19 17:05:20,045 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-19 17:05:20,046 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-19 17:05:20,047 INFO L275 PluginConnector]: CDTParser initialized [2021-02-19 17:05:20,048 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product59.cil.c [2021-02-19 17:05:20,136 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a80609fc9/0e1facff274244118fe51c1030a25955/FLAGf0a061bf5 [2021-02-19 17:05:20,831 INFO L306 CDTParser]: Found 1 translation units. [2021-02-19 17:05:20,834 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product59.cil.c [2021-02-19 17:05:20,854 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a80609fc9/0e1facff274244118fe51c1030a25955/FLAGf0a061bf5 [2021-02-19 17:05:21,130 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a80609fc9/0e1facff274244118fe51c1030a25955 [2021-02-19 17:05:21,134 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-19 17:05:21,150 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-19 17:05:21,154 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-19 17:05:21,154 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-19 17:05:21,159 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-19 17:05:21,160 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.02 05:05:21" (1/1) ... [2021-02-19 17:05:21,162 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cc1e703 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:05:21, skipping insertion in model container [2021-02-19 17:05:21,162 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.02 05:05:21" (1/1) ... [2021-02-19 17:05:21,171 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-19 17:05:21,237 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-19 17:05:21,572 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_product59.cil.c[14819,14832] [2021-02-19 17:05:21,600 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-19 17:05:21,611 INFO L203 MainTranslator]: Completed pre-run [2021-02-19 17:05:21,685 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_product59.cil.c[14819,14832] [2021-02-19 17:05:21,721 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-19 17:05:21,789 INFO L208 MainTranslator]: Completed translation [2021-02-19 17:05:21,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:05:21 WrapperNode [2021-02-19 17:05:21,790 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-19 17:05:21,791 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-19 17:05:21,792 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-19 17:05:21,794 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-19 17:05:21,810 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:05:21" (1/1) ... [2021-02-19 17:05:21,811 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:05:21" (1/1) ... [2021-02-19 17:05:21,851 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:05:21" (1/1) ... [2021-02-19 17:05:21,852 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:05:21" (1/1) ... [2021-02-19 17:05:21,908 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:05:21" (1/1) ... [2021-02-19 17:05:21,923 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:05:21" (1/1) ... [2021-02-19 17:05:21,935 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:05:21" (1/1) ... [2021-02-19 17:05:21,950 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-19 17:05:21,951 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-19 17:05:21,951 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-19 17:05:21,952 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-19 17:05:21,954 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:05:21" (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 [2021-02-19 17:05:22,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-19 17:05:22,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-19 17:05:22,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-02-19 17:05:22,079 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-19 17:05:22,079 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2021-02-19 17:05:22,080 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2021-02-19 17:05:22,080 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2021-02-19 17:05:22,080 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2021-02-19 17:05:22,081 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2021-02-19 17:05:22,081 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2021-02-19 17:05:22,081 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2021-02-19 17:05:22,082 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-02-19 17:05:22,083 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-02-19 17:05:22,083 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-02-19 17:05:22,084 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2021-02-19 17:05:22,084 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2021-02-19 17:05:22,085 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2021-02-19 17:05:22,085 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2021-02-19 17:05:22,085 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-02-19 17:05:22,085 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2021-02-19 17:05:22,086 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2021-02-19 17:05:22,086 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2021-02-19 17:05:22,086 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-19 17:05:22,086 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-02-19 17:05:22,086 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2021-02-19 17:05:22,087 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2021-02-19 17:05:22,087 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2021-02-19 17:05:22,087 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2021-02-19 17:05:22,087 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-02-19 17:05:22,087 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2021-02-19 17:05:22,087 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-02-19 17:05:22,088 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-02-19 17:05:22,088 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2021-02-19 17:05:22,088 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2021-02-19 17:05:22,088 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2021-02-19 17:05:22,088 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2021-02-19 17:05:22,088 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-02-19 17:05:22,088 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-02-19 17:05:22,089 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-02-19 17:05:22,089 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2021-02-19 17:05:22,089 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2021-02-19 17:05:22,089 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2021-02-19 17:05:22,089 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2021-02-19 17:05:22,089 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-19 17:05:22,090 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-19 17:05:22,090 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-19 17:05:22,090 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-19 17:05:22,090 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-19 17:05:22,090 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-02-19 17:05:22,090 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-19 17:05:22,091 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-19 17:05:22,091 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2021-02-19 17:05:22,091 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-19 17:05:22,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-19 17:05:22,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-19 17:05:22,091 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-19 17:05:22,092 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2021-02-19 17:05:22,092 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-19 17:05:22,092 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2021-02-19 17:05:22,092 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-02-19 17:05:22,092 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-19 17:05:22,093 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2021-02-19 17:05:22,093 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2021-02-19 17:05:22,093 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2021-02-19 17:05:22,094 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2021-02-19 17:05:22,094 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-02-19 17:05:22,094 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-02-19 17:05:22,094 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-02-19 17:05:22,095 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2021-02-19 17:05:22,095 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2021-02-19 17:05:22,095 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2021-02-19 17:05:22,095 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2021-02-19 17:05:22,096 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-02-19 17:05:22,096 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-02-19 17:05:22,096 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2021-02-19 17:05:22,096 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2021-02-19 17:05:22,097 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2021-02-19 17:05:22,097 INFO L130 BoogieDeclarations]: Found specification of procedure test [2021-02-19 17:05:22,097 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2021-02-19 17:05:22,097 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2021-02-19 17:05:22,098 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2021-02-19 17:05:22,098 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2021-02-19 17:05:22,098 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-19 17:05:22,098 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-02-19 17:05:22,100 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-02-19 17:05:22,100 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-02-19 17:05:22,100 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2021-02-19 17:05:22,100 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2021-02-19 17:05:22,100 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2021-02-19 17:05:22,101 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-02-19 17:05:22,101 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2021-02-19 17:05:22,101 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-02-19 17:05:22,101 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2021-02-19 17:05:22,101 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2021-02-19 17:05:22,101 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2021-02-19 17:05:22,101 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2021-02-19 17:05:22,102 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-02-19 17:05:22,102 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-19 17:05:22,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-19 17:05:22,102 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-19 17:05:23,222 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-19 17:05:23,222 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-19 17:05:23,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 05:05:23 BoogieIcfgContainer [2021-02-19 17:05:23,225 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-19 17:05:23,227 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-19 17:05:23,227 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-19 17:05:23,231 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-19 17:05:23,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.02 05:05:21" (1/3) ... [2021-02-19 17:05:23,232 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10fe4fa7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 05:05:23, skipping insertion in model container [2021-02-19 17:05:23,232 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:05:21" (2/3) ... [2021-02-19 17:05:23,233 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10fe4fa7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 05:05:23, skipping insertion in model container [2021-02-19 17:05:23,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 05:05:23" (3/3) ... [2021-02-19 17:05:23,235 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product59.cil.c [2021-02-19 17:05:23,242 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-19 17:05:23,248 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-19 17:05:23,267 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-19 17:05:23,297 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-19 17:05:23,297 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-19 17:05:23,297 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-19 17:05:23,297 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-19 17:05:23,298 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-19 17:05:23,298 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-19 17:05:23,298 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-19 17:05:23,298 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-19 17:05:23,321 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states. [2021-02-19 17:05:23,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-02-19 17:05:23,333 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:05:23,334 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] [2021-02-19 17:05:23,335 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 17:05:23,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:05:23,341 INFO L82 PathProgramCache]: Analyzing trace with hash -359542385, now seen corresponding path program 1 times [2021-02-19 17:05:23,351 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:05:23,352 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365800609] [2021-02-19 17:05:23,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:05:23,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:23,753 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:23,755 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:23,756 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:23,756 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:24,061 WARN L202 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-19 17:05:24,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 17:05:24,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:24,107 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:24,108 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:24,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 17:05:24,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:24,112 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:24,113 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:24,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-19 17:05:24,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:24,117 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:24,117 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:24,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 17:05:24,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:24,122 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:24,122 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:24,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-19 17:05:24,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:24,126 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:24,126 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:24,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-02-19 17:05:24,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:24,131 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:24,131 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:24,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-19 17:05:24,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:24,136 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:24,136 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:24,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-02-19 17:05:24,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:24,140 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:24,141 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:24,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 17:05:24,185 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365800609] [2021-02-19 17:05:24,186 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 17:05:24,187 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-19 17:05:24,187 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494114950] [2021-02-19 17:05:24,193 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-19 17:05:24,193 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 17:05:24,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-19 17:05:24,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-19 17:05:24,210 INFO L87 Difference]: Start difference. First operand 195 states. Second operand 3 states. [2021-02-19 17:05:25,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 17:05:25,577 INFO L93 Difference]: Finished difference Result 349 states and 451 transitions. [2021-02-19 17:05:25,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 17:05:25,580 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2021-02-19 17:05:25,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 17:05:25,604 INFO L225 Difference]: With dead ends: 349 [2021-02-19 17:05:25,604 INFO L226 Difference]: Without dead ends: 188 [2021-02-19 17:05:25,611 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 [2021-02-19 17:05:25,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2021-02-19 17:05:25,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 152. [2021-02-19 17:05:25,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2021-02-19 17:05:25,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 179 transitions. [2021-02-19 17:05:25,762 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 179 transitions. Word has length 52 [2021-02-19 17:05:25,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 17:05:25,763 INFO L480 AbstractCegarLoop]: Abstraction has 152 states and 179 transitions. [2021-02-19 17:05:25,763 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-19 17:05:25,763 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 179 transitions. [2021-02-19 17:05:25,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-02-19 17:05:25,774 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:05:25,774 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] [2021-02-19 17:05:25,774 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-19 17:05:25,775 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 17:05:25,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:05:25,776 INFO L82 PathProgramCache]: Analyzing trace with hash -1632754686, now seen corresponding path program 1 times [2021-02-19 17:05:25,776 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:05:25,778 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884738834] [2021-02-19 17:05:25,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:05:25,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:25,947 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:25,948 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:25,948 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:25,949 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:05:25,954 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:25,955 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:26,350 WARN L202 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-19 17:05:26,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 17:05:26,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:26,385 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:26,386 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:26,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 17:05:26,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:26,390 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:26,391 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:26,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-19 17:05:26,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:26,394 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:26,395 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:26,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 17:05:26,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:26,399 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:26,401 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:26,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-19 17:05:26,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:26,404 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:26,405 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:26,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-19 17:05:26,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:26,409 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:26,410 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:26,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-02-19 17:05:26,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:26,415 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:26,415 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:26,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-02-19 17:05:26,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:26,420 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:26,420 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:26,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 17:05:26,435 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884738834] [2021-02-19 17:05:26,435 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 17:05:26,435 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-19 17:05:26,436 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377112181] [2021-02-19 17:05:26,437 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-19 17:05:26,438 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 17:05:26,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-19 17:05:26,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-19 17:05:26,442 INFO L87 Difference]: Start difference. First operand 152 states and 179 transitions. Second operand 4 states. [2021-02-19 17:05:27,089 WARN L202 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-19 17:05:28,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 17:05:28,381 INFO L93 Difference]: Finished difference Result 276 states and 334 transitions. [2021-02-19 17:05:28,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 17:05:28,382 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2021-02-19 17:05:28,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 17:05:28,387 INFO L225 Difference]: With dead ends: 276 [2021-02-19 17:05:28,387 INFO L226 Difference]: Without dead ends: 172 [2021-02-19 17:05:28,389 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 [2021-02-19 17:05:28,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2021-02-19 17:05:28,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 143. [2021-02-19 17:05:28,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2021-02-19 17:05:28,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 167 transitions. [2021-02-19 17:05:28,445 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 167 transitions. Word has length 53 [2021-02-19 17:05:28,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 17:05:28,445 INFO L480 AbstractCegarLoop]: Abstraction has 143 states and 167 transitions. [2021-02-19 17:05:28,445 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-19 17:05:28,445 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 167 transitions. [2021-02-19 17:05:28,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-02-19 17:05:28,447 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:05:28,448 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] [2021-02-19 17:05:28,448 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-19 17:05:28,448 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 17:05:28,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:05:28,449 INFO L82 PathProgramCache]: Analyzing trace with hash 618880703, now seen corresponding path program 1 times [2021-02-19 17:05:28,449 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:05:28,450 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107675597] [2021-02-19 17:05:28,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:05:28,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:28,547 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:28,548 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:05:28,553 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:28,553 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:05:28,554 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:28,554 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:05:28,559 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:28,560 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:05:28,566 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:28,566 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 17:05:28,573 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:28,574 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 17:05:28,575 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:28,575 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 17:05:28,576 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:28,577 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:28,952 WARN L202 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-19 17:05:28,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 17:05:28,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:29,038 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:29,041 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-19 17:05:29,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 17:05:29,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:29,048 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:29,048 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:29,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-19 17:05:29,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:29,052 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:29,052 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:29,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 17:05:29,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:29,065 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:29,066 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:05:29,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-19 17:05:29,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:29,084 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:29,086 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:29,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-19 17:05:29,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:29,089 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:29,090 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:29,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-02-19 17:05:29,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:29,092 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:29,093 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:29,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-02-19 17:05:29,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:29,095 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:29,096 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:29,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 17:05:29,110 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107675597] [2021-02-19 17:05:29,110 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 17:05:29,110 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-19 17:05:29,110 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569738686] [2021-02-19 17:05:29,111 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-19 17:05:29,111 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 17:05:29,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-19 17:05:29,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-02-19 17:05:29,112 INFO L87 Difference]: Start difference. First operand 143 states and 167 transitions. Second operand 8 states. [2021-02-19 17:05:29,637 WARN L202 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-19 17:05:30,107 WARN L202 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-19 17:05:30,515 WARN L202 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-19 17:05:30,914 WARN L202 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-19 17:05:31,891 WARN L202 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-19 17:05:34,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 17:05:34,612 INFO L93 Difference]: Finished difference Result 491 states and 604 transitions. [2021-02-19 17:05:34,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 17:05:34,613 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 57 [2021-02-19 17:05:34,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 17:05:34,619 INFO L225 Difference]: With dead ends: 491 [2021-02-19 17:05:34,619 INFO L226 Difference]: Without dead ends: 372 [2021-02-19 17:05:34,621 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-02-19 17:05:34,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2021-02-19 17:05:34,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 310. [2021-02-19 17:05:34,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 310 states. [2021-02-19 17:05:34,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 373 transitions. [2021-02-19 17:05:34,732 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 373 transitions. Word has length 57 [2021-02-19 17:05:34,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 17:05:34,733 INFO L480 AbstractCegarLoop]: Abstraction has 310 states and 373 transitions. [2021-02-19 17:05:34,733 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-19 17:05:34,733 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 373 transitions. [2021-02-19 17:05:34,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-02-19 17:05:34,736 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:05:34,736 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] [2021-02-19 17:05:34,736 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-19 17:05:34,736 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 17:05:34,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:05:34,737 INFO L82 PathProgramCache]: Analyzing trace with hash 171593971, now seen corresponding path program 1 times [2021-02-19 17:05:34,737 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:05:34,737 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668650389] [2021-02-19 17:05:34,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:05:34,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:34,850 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:34,851 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:05:34,855 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:34,855 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:05:34,860 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:34,862 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:05:34,862 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:34,863 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:05:34,863 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:34,864 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:05:34,865 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:34,865 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:05:34,869 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:34,870 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:05:34,877 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:34,878 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:35,241 WARN L202 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-19 17:05:35,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 17:05:35,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:35,288 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:35,289 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-19 17:05:35,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 17:05:35,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:35,292 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:35,292 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:35,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-19 17:05:35,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:35,295 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:35,295 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:35,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 17:05:35,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:35,299 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:35,299 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:35,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-19 17:05:35,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:35,302 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:35,303 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:35,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-19 17:05:35,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:35,320 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:35,320 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:35,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-02-19 17:05:35,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:35,324 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:35,324 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:35,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-02-19 17:05:35,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:35,330 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:35,331 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:05:35,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-19 17:05:35,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:35,346 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:35,347 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:35,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 17:05:35,358 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668650389] [2021-02-19 17:05:35,358 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 17:05:35,359 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-19 17:05:35,359 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711889668] [2021-02-19 17:05:35,359 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-19 17:05:35,360 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 17:05:35,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-19 17:05:35,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-02-19 17:05:35,361 INFO L87 Difference]: Start difference. First operand 310 states and 373 transitions. Second operand 8 states. [2021-02-19 17:05:35,912 WARN L202 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-19 17:05:37,675 WARN L202 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-19 17:05:38,263 WARN L202 SmtUtils]: Spent 383.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-19 17:05:38,687 WARN L202 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-19 17:05:39,083 WARN L202 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-19 17:05:40,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 17:05:40,337 INFO L93 Difference]: Finished difference Result 958 states and 1241 transitions. [2021-02-19 17:05:40,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-19 17:05:40,337 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 63 [2021-02-19 17:05:40,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 17:05:40,348 INFO L225 Difference]: With dead ends: 958 [2021-02-19 17:05:40,348 INFO L226 Difference]: Without dead ends: 672 [2021-02-19 17:05:40,352 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 [2021-02-19 17:05:40,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 672 states. [2021-02-19 17:05:40,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 672 to 601. [2021-02-19 17:05:40,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 601 states. [2021-02-19 17:05:40,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 735 transitions. [2021-02-19 17:05:40,529 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 735 transitions. Word has length 63 [2021-02-19 17:05:40,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 17:05:40,530 INFO L480 AbstractCegarLoop]: Abstraction has 601 states and 735 transitions. [2021-02-19 17:05:40,530 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-19 17:05:40,530 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 735 transitions. [2021-02-19 17:05:40,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-02-19 17:05:40,533 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:05:40,533 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] [2021-02-19 17:05:40,534 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-19 17:05:40,534 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 17:05:40,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:05:40,534 INFO L82 PathProgramCache]: Analyzing trace with hash -1910334407, now seen corresponding path program 1 times [2021-02-19 17:05:40,535 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:05:40,535 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530703523] [2021-02-19 17:05:40,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:05:40,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-19 17:05:40,625 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-19 17:05:40,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-19 17:05:40,694 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-19 17:05:40,772 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-02-19 17:05:40,772 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-19 17:05:40,772 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-19 17:05:40,934 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.02 05:05:40 BoogieIcfgContainer [2021-02-19 17:05:40,935 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-19 17:05:40,937 INFO L168 Benchmark]: Toolchain (without parser) took 19798.93 ms. Allocated memory was 151.0 MB in the beginning and 406.8 MB in the end (delta: 255.9 MB). Free memory was 124.5 MB in the beginning and 340.6 MB in the end (delta: -216.1 MB). Peak memory consumption was 40.5 MB. Max. memory is 8.0 GB. [2021-02-19 17:05:40,938 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 151.0 MB. Free memory is still 121.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-19 17:05:40,938 INFO L168 Benchmark]: CACSL2BoogieTranslator took 635.93 ms. Allocated memory is still 151.0 MB. Free memory was 123.3 MB in the beginning and 101.8 MB in the end (delta: 21.6 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2021-02-19 17:05:40,940 INFO L168 Benchmark]: Boogie Preprocessor took 158.95 ms. Allocated memory is still 151.0 MB. Free memory was 101.8 MB in the beginning and 97.6 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2021-02-19 17:05:40,941 INFO L168 Benchmark]: RCFGBuilder took 1274.02 ms. Allocated memory was 151.0 MB in the beginning and 187.7 MB in the end (delta: 36.7 MB). Free memory was 97.6 MB in the beginning and 161.3 MB in the end (delta: -63.7 MB). Peak memory consumption was 53.0 MB. Max. memory is 8.0 GB. [2021-02-19 17:05:40,942 INFO L168 Benchmark]: TraceAbstraction took 17707.45 ms. Allocated memory was 187.7 MB in the beginning and 406.8 MB in the end (delta: 219.2 MB). Free memory was 160.8 MB in the beginning and 340.6 MB in the end (delta: -179.8 MB). Peak memory consumption was 39.9 MB. Max. memory is 8.0 GB. [2021-02-19 17:05:40,953 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 151.0 MB. Free memory is still 121.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 635.93 ms. Allocated memory is still 151.0 MB. Free memory was 123.3 MB in the beginning and 101.8 MB in the end (delta: 21.6 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 158.95 ms. Allocated memory is still 151.0 MB. Free memory was 101.8 MB in the beginning and 97.6 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1274.02 ms. Allocated memory was 151.0 MB in the beginning and 187.7 MB in the end (delta: 36.7 MB). Free memory was 97.6 MB in the beginning and 161.3 MB in the end (delta: -63.7 MB). Peak memory consumption was 53.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 17707.45 ms. Allocated memory was 187.7 MB in the beginning and 406.8 MB in the end (delta: 219.2 MB). Free memory was 160.8 MB in the beginning and 340.6 MB in the end (delta: -179.8 MB). Peak memory consumption was 39.9 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 696]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L416] int waterLevel = 1; [L417] int methaneLevelCritical = 0; [L519] int cleanupTimeShifts = 4; [L771] int pumpRunning = 0; [L772] int systemActive = 1; VAL [\old(cleanupTimeShifts)=179, \old(head)=182, \old(head)=170, \old(methaneLevelCritical)=150, \old(pumpRunning)=135, \old(systemActive)=134, \old(waterLevel)=142, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L598] int retValue_acc ; [L599] 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] [L603] 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] [L604] 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] [L605] 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] [L647] int retValue_acc ; [L650] retValue_acc = 1 [L651] 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] [L605] 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] [L605] tmp = valid_product() [L607] 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] [L609] 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] [L610] 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] [L589] 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] [L703] int splverifierCounter ; [L704] int tmp ; [L705] int tmp___0 ; [L706] int tmp___1 ; [L707] int tmp___2 ; [L710] 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] [L712] 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] [L714] 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] [L720] tmp = __VERIFIER_nondet_int() [L722] 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] [L724] 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] [L434] COND TRUE waterLevel < 2 [L435] 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] [L724] 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] [L730] tmp___0 = __VERIFIER_nondet_int() [L732] 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] [L740] tmp___2 = __VERIFIER_nondet_int() [L742] COND FALSE !(\read(tmp___2)) [L746] tmp___1 = __VERIFIER_nondet_int() [L748] 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] [L750] 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] [L989] 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] [L996] 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] [L750] 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] [L757] 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] [L778] 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] [L785] 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] [L793] 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] [L659] int tmp ; [L660] int tmp___0 ; [L661] 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] [L665] 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] [L455] int retValue_acc ; [L458] retValue_acc = methaneLevelCritical [L459] 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] [L665] 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] [L665] tmp = isMethaneLevelCritical() [L667] 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] [L671] 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] [L487] int retValue_acc ; [L490] retValue_acc = waterLevel [L491] 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] [L671] 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] [L671] tmp___0 = getWaterLevel() [L673] 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] [L675] 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] [L903] int retValue_acc ; [L906] retValue_acc = pumpRunning [L907] 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] [L675] 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] [L675] tmp___1 = isPumpRunning() [L677] 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] [L681] 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] [L696] 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 43 procedures, 254 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 17.4s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 13.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 566 SDtfs, 951 SDslu, 363 SDs, 0 SdLazy, 2191 SolverSat, 546 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.8s 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=601occurred 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, 2.2s 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...