./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product38.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 7e70badd Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74615ce0-3288-4adc-9dec-f9777bdfb5d3/bin/uautomizer-wIGwrQj20G/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74615ce0-3288-4adc-9dec-f9777bdfb5d3/bin/uautomizer-wIGwrQj20G/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74615ce0-3288-4adc-9dec-f9777bdfb5d3/bin/uautomizer-wIGwrQj20G/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74615ce0-3288-4adc-9dec-f9777bdfb5d3/bin/uautomizer-wIGwrQj20G/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product38.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74615ce0-3288-4adc-9dec-f9777bdfb5d3/bin/uautomizer-wIGwrQj20G/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74615ce0-3288-4adc-9dec-f9777bdfb5d3/bin/uautomizer-wIGwrQj20G --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dfe9857e69a888cdbad1416d1b07f69e8062222f8bcfc0bd9dc9f4a773a0fc6f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-7e70bad [2021-11-23 14:13:42,577 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 14:13:42,580 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 14:13:42,648 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 14:13:42,649 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 14:13:42,655 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 14:13:42,657 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 14:13:42,661 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 14:13:42,663 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 14:13:42,671 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 14:13:42,672 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 14:13:42,673 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 14:13:42,674 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 14:13:42,675 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 14:13:42,676 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 14:13:42,678 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 14:13:42,679 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 14:13:42,680 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 14:13:42,687 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 14:13:42,698 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 14:13:42,700 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 14:13:42,701 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 14:13:42,703 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 14:13:42,704 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 14:13:42,707 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 14:13:42,708 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 14:13:42,708 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 14:13:42,709 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 14:13:42,710 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 14:13:42,711 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 14:13:42,712 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 14:13:42,713 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 14:13:42,714 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 14:13:42,715 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 14:13:42,716 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 14:13:42,716 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 14:13:42,717 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 14:13:42,718 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 14:13:42,718 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 14:13:42,719 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 14:13:42,720 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 14:13:42,721 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74615ce0-3288-4adc-9dec-f9777bdfb5d3/bin/uautomizer-wIGwrQj20G/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-23 14:13:42,745 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 14:13:42,746 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 14:13:42,746 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 14:13:42,747 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 14:13:42,748 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 14:13:42,748 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 14:13:42,748 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 14:13:42,749 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-23 14:13:42,749 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-23 14:13:42,749 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-23 14:13:42,749 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-23 14:13:42,749 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-23 14:13:42,750 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-23 14:13:42,750 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 14:13:42,750 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 14:13:42,750 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 14:13:42,751 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 14:13:42,751 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 14:13:42,751 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 14:13:42,751 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-23 14:13:42,752 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-23 14:13:42,752 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-23 14:13:42,752 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 14:13:42,752 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 14:13:42,752 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-23 14:13:42,753 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 14:13:42,753 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-23 14:13:42,753 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 14:13:42,753 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 14:13:42,754 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 14:13:42,754 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 14:13:42,754 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 14:13:42,755 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-23 14:13:42,755 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74615ce0-3288-4adc-9dec-f9777bdfb5d3/bin/uautomizer-wIGwrQj20G/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74615ce0-3288-4adc-9dec-f9777bdfb5d3/bin/uautomizer-wIGwrQj20G Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dfe9857e69a888cdbad1416d1b07f69e8062222f8bcfc0bd9dc9f4a773a0fc6f [2021-11-23 14:13:43,052 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 14:13:43,076 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 14:13:43,079 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 14:13:43,081 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 14:13:43,082 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 14:13:43,084 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74615ce0-3288-4adc-9dec-f9777bdfb5d3/bin/uautomizer-wIGwrQj20G/../../sv-benchmarks/c/product-lines/minepump_spec4_product38.cil.c [2021-11-23 14:13:43,171 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74615ce0-3288-4adc-9dec-f9777bdfb5d3/bin/uautomizer-wIGwrQj20G/data/9129bcd08/a70d47fc1fcb45228e502e74990ca00c/FLAGc1f90901b [2021-11-23 14:13:43,722 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 14:13:43,722 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74615ce0-3288-4adc-9dec-f9777bdfb5d3/sv-benchmarks/c/product-lines/minepump_spec4_product38.cil.c [2021-11-23 14:13:43,745 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74615ce0-3288-4adc-9dec-f9777bdfb5d3/bin/uautomizer-wIGwrQj20G/data/9129bcd08/a70d47fc1fcb45228e502e74990ca00c/FLAGc1f90901b [2021-11-23 14:13:44,016 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74615ce0-3288-4adc-9dec-f9777bdfb5d3/bin/uautomizer-wIGwrQj20G/data/9129bcd08/a70d47fc1fcb45228e502e74990ca00c [2021-11-23 14:13:44,021 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 14:13:44,025 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 14:13:44,027 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 14:13:44,028 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 14:13:44,031 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 14:13:44,032 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:13:44" (1/1) ... [2021-11-23 14:13:44,035 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d07cc33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:44, skipping insertion in model container [2021-11-23 14:13:44,035 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:13:44" (1/1) ... [2021-11-23 14:13:44,042 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 14:13:44,108 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 14:13:44,411 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74615ce0-3288-4adc-9dec-f9777bdfb5d3/sv-benchmarks/c/product-lines/minepump_spec4_product38.cil.c[4301,4314] [2021-11-23 14:13:44,502 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 14:13:44,512 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 14:13:44,535 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74615ce0-3288-4adc-9dec-f9777bdfb5d3/sv-benchmarks/c/product-lines/minepump_spec4_product38.cil.c[4301,4314] [2021-11-23 14:13:44,577 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 14:13:44,596 INFO L208 MainTranslator]: Completed translation [2021-11-23 14:13:44,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:44 WrapperNode [2021-11-23 14:13:44,597 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 14:13:44,598 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 14:13:44,598 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 14:13:44,598 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 14:13:44,606 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:44" (1/1) ... [2021-11-23 14:13:44,622 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:44" (1/1) ... [2021-11-23 14:13:44,683 INFO L137 Inliner]: procedures = 54, calls = 154, calls flagged for inlining = 51, calls inlined = 78, statements flattened = 584 [2021-11-23 14:13:44,692 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 14:13:44,694 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 14:13:44,694 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 14:13:44,694 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 14:13:44,704 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:44" (1/1) ... [2021-11-23 14:13:44,704 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:44" (1/1) ... [2021-11-23 14:13:44,712 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:44" (1/1) ... [2021-11-23 14:13:44,713 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:44" (1/1) ... [2021-11-23 14:13:44,736 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:44" (1/1) ... [2021-11-23 14:13:44,757 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:44" (1/1) ... [2021-11-23 14:13:44,763 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:44" (1/1) ... [2021-11-23 14:13:44,767 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 14:13:44,787 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 14:13:44,787 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 14:13:44,788 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 14:13:44,789 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:44" (1/1) ... [2021-11-23 14:13:44,798 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 14:13:44,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74615ce0-3288-4adc-9dec-f9777bdfb5d3/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 14:13:44,823 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74615ce0-3288-4adc-9dec-f9777bdfb5d3/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 14:13:44,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74615ce0-3288-4adc-9dec-f9777bdfb5d3/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-23 14:13:44,866 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 14:13:44,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 14:13:44,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 14:13:44,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 14:13:45,006 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 14:13:45,008 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 14:13:45,505 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 14:13:45,514 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 14:13:45,514 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-23 14:13:45,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:13:45 BoogieIcfgContainer [2021-11-23 14:13:45,517 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 14:13:45,518 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-23 14:13:45,518 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-23 14:13:45,521 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-23 14:13:45,522 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-23 14:13:45,522 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 02:13:44" (1/3) ... [2021-11-23 14:13:45,524 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7c7ddfd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 02:13:45, skipping insertion in model container [2021-11-23 14:13:45,524 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-23 14:13:45,524 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:44" (2/3) ... [2021-11-23 14:13:45,524 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7c7ddfd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 02:13:45, skipping insertion in model container [2021-11-23 14:13:45,524 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-23 14:13:45,525 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:13:45" (3/3) ... [2021-11-23 14:13:45,526 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product38.cil.c [2021-11-23 14:13:45,570 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-23 14:13:45,571 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-23 14:13:45,571 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-23 14:13:45,571 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-23 14:13:45,571 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-23 14:13:45,571 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-23 14:13:45,571 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-23 14:13:45,571 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-23 14:13:45,592 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 157 states, 156 states have (on average 1.3717948717948718) internal successors, (214), 156 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:13:45,644 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 101 [2021-11-23 14:13:45,645 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-23 14:13:45,645 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-23 14:13:45,652 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:13:45,652 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:13:45,652 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-23 14:13:45,656 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 157 states, 156 states have (on average 1.3717948717948718) internal successors, (214), 156 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:13:45,673 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 101 [2021-11-23 14:13:45,673 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-23 14:13:45,673 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-23 14:13:45,674 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:13:45,674 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:13:45,695 INFO L791 eck$LassoCheckResult]: Stem: 142#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 46#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 21#L933true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 114#L926true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 125#L941true main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 68#L140true assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 136#L113true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet12#1, test_#t~nondet13#1, test_#t~nondet14#1, test_#t~nondet15#1, test_~splverifierCounter~0#1, test_~tmp~2#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~2#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 124#L300-2true [2021-11-23 14:13:45,696 INFO L793 eck$LassoCheckResult]: Loop: 124#L300-2true assume !false; 104#L301true assume test_~splverifierCounter~0#1 < 4; 96#L302true test_~tmp~2#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1; 81#L310true assume !(0 != test_~tmp~2#1); 4#L310-2true test_~tmp___0~1#1 := test_#t~nondet13#1;havoc test_#t~nondet13#1; 95#L320true assume !(0 != test_~tmp___0~1#1); 90#L320-2true test_~tmp___2~0#1 := test_#t~nondet14#1;havoc test_#t~nondet14#1; 60#L330true assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet15#1;havoc test_#t~nondet15#1; 62#L338true assume 0 != test_~tmp___1~0#1; 87#L338-2true assume { :begin_inline_timeShift } true; 132#L366true assume !(0 != ~pumpRunning~0); 116#L366-2true assume !(0 != ~systemActive~0); 17#L373-1true assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret10#1, __utac_acc__Specification4_spec__1_#t~ret11#1, __utac_acc__Specification4_spec__1_~tmp~1#1, __utac_acc__Specification4_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification4_spec__1_~tmp~1#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~2#1;havoc getWaterLevel_~retValue_acc~2#1;getWaterLevel_~retValue_acc~2#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~2#1; 79#L234true __utac_acc__Specification4_spec__1_#t~ret10#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~1#1 := __utac_acc__Specification4_spec__1_#t~ret10#1;havoc __utac_acc__Specification4_spec__1_#t~ret10#1; 38#L271true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~1#1); 26#L271-1true assume { :end_inline___utac_acc__Specification4_spec__1 } true; 61#L383true assume { :end_inline_timeShift } true; 124#L300-2true [2021-11-23 14:13:45,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:13:45,702 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2021-11-23 14:13:45,723 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:13:45,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198136402] [2021-11-23 14:13:45,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:13:45,725 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:13:45,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 14:13:45,938 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 14:13:45,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 14:13:45,989 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 14:13:45,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:13:45,992 INFO L85 PathProgramCache]: Analyzing trace with hash 1718428226, now seen corresponding path program 1 times [2021-11-23 14:13:45,992 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:13:45,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733343103] [2021-11-23 14:13:45,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:13:45,993 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:13:46,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 14:13:46,000 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 14:13:46,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 14:13:46,011 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 14:13:46,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:13:46,013 INFO L85 PathProgramCache]: Analyzing trace with hash 786746622, now seen corresponding path program 1 times [2021-11-23 14:13:46,013 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:13:46,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713308091] [2021-11-23 14:13:46,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:13:46,014 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:13:46,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:13:46,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:13:46,181 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:13:46,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713308091] [2021-11-23 14:13:46,184 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713308091] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:13:46,184 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:13:46,184 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 14:13:46,185 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725248225] [2021-11-23 14:13:46,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:13:46,358 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:13:46,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 14:13:46,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-23 14:13:46,403 INFO L87 Difference]: Start difference. First operand has 157 states, 156 states have (on average 1.3717948717948718) internal successors, (214), 156 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:13:46,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:13:46,524 INFO L93 Difference]: Finished difference Result 154 states and 200 transitions. [2021-11-23 14:13:46,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 14:13:46,532 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 154 states and 200 transitions. [2021-11-23 14:13:46,543 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 97 [2021-11-23 14:13:46,554 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 154 states to 144 states and 190 transitions. [2021-11-23 14:13:46,555 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 144 [2021-11-23 14:13:46,557 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 144 [2021-11-23 14:13:46,558 INFO L73 IsDeterministic]: Start isDeterministic. Operand 144 states and 190 transitions. [2021-11-23 14:13:46,560 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 14:13:46,561 INFO L681 BuchiCegarLoop]: Abstraction has 144 states and 190 transitions. [2021-11-23 14:13:46,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states and 190 transitions. [2021-11-23 14:13:46,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2021-11-23 14:13:46,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 144 states have (on average 1.3194444444444444) internal successors, (190), 143 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:13:46,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 190 transitions. [2021-11-23 14:13:46,598 INFO L704 BuchiCegarLoop]: Abstraction has 144 states and 190 transitions. [2021-11-23 14:13:46,598 INFO L587 BuchiCegarLoop]: Abstraction has 144 states and 190 transitions. [2021-11-23 14:13:46,599 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-23 14:13:46,599 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 144 states and 190 transitions. [2021-11-23 14:13:46,601 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 97 [2021-11-23 14:13:46,601 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-23 14:13:46,601 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-23 14:13:46,602 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:13:46,602 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:13:46,603 INFO L791 eck$LassoCheckResult]: Stem: 472#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 395#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 360#L933 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 361#L926 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 456#L941 main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 421#L140 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 422#L113 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet12#1, test_#t~nondet13#1, test_#t~nondet14#1, test_#t~nondet15#1, test_~splverifierCounter~0#1, test_~tmp~2#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~2#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 411#L300-2 [2021-11-23 14:13:46,603 INFO L793 eck$LassoCheckResult]: Loop: 411#L300-2 assume !false; 450#L301 assume test_~splverifierCounter~0#1 < 4; 444#L302 test_~tmp~2#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1; 433#L310 assume !(0 != test_~tmp~2#1); 329#L310-2 test_~tmp___0~1#1 := test_#t~nondet13#1;havoc test_#t~nondet13#1; 330#L320 assume !(0 != test_~tmp___0~1#1); 407#L320-2 test_~tmp___2~0#1 := test_#t~nondet14#1;havoc test_#t~nondet14#1; 408#L330 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet15#1;havoc test_#t~nondet15#1; 409#L338 assume 0 != test_~tmp___1~0#1; 412#L338-2 assume { :begin_inline_timeShift } true; 438#L366 assume !(0 != ~pumpRunning~0); 372#L366-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret17#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1; 457#L424 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret16#1, processEnvironment__wrappee__highWaterSensor_~tmp~3#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3#1; 374#L398-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 341#L390-3 assume { :end_inline_processEnvironment__wrappee__base } true; 342#L398-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 382#L424-1 assume { :end_inline_processEnvironment } true; 353#L373-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret10#1, __utac_acc__Specification4_spec__1_#t~ret11#1, __utac_acc__Specification4_spec__1_~tmp~1#1, __utac_acc__Specification4_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification4_spec__1_~tmp~1#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~2#1;havoc getWaterLevel_~retValue_acc~2#1;getWaterLevel_~retValue_acc~2#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~2#1; 354#L234 __utac_acc__Specification4_spec__1_#t~ret10#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~1#1 := __utac_acc__Specification4_spec__1_#t~ret10#1;havoc __utac_acc__Specification4_spec__1_#t~ret10#1; 383#L271 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~1#1); 366#L271-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 367#L383 assume { :end_inline_timeShift } true; 411#L300-2 [2021-11-23 14:13:46,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:13:46,604 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2021-11-23 14:13:46,604 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:13:46,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564730755] [2021-11-23 14:13:46,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:13:46,605 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:13:46,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 14:13:46,622 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 14:13:46,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 14:13:46,643 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 14:13:46,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:13:46,644 INFO L85 PathProgramCache]: Analyzing trace with hash 1397750183, now seen corresponding path program 1 times [2021-11-23 14:13:46,645 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:13:46,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537044337] [2021-11-23 14:13:46,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:13:46,645 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:13:46,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:13:46,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:13:46,672 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:13:46,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537044337] [2021-11-23 14:13:46,674 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537044337] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:13:46,674 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:13:46,675 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 14:13:46,675 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925941108] [2021-11-23 14:13:46,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:13:46,676 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-23 14:13:46,677 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:13:46,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 14:13:46,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 14:13:46,679 INFO L87 Difference]: Start difference. First operand 144 states and 190 transitions. cyclomatic complexity: 48 Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:13:46,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:13:46,780 INFO L93 Difference]: Finished difference Result 200 states and 253 transitions. [2021-11-23 14:13:46,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 14:13:46,781 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 200 states and 253 transitions. [2021-11-23 14:13:46,785 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 140 [2021-11-23 14:13:46,791 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 200 states to 200 states and 253 transitions. [2021-11-23 14:13:46,791 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 200 [2021-11-23 14:13:46,792 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 200 [2021-11-23 14:13:46,793 INFO L73 IsDeterministic]: Start isDeterministic. Operand 200 states and 253 transitions. [2021-11-23 14:13:46,799 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 14:13:46,800 INFO L681 BuchiCegarLoop]: Abstraction has 200 states and 253 transitions. [2021-11-23 14:13:46,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states and 253 transitions. [2021-11-23 14:13:46,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 200. [2021-11-23 14:13:46,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 200 states have (on average 1.265) internal successors, (253), 199 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:13:46,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 253 transitions. [2021-11-23 14:13:46,822 INFO L704 BuchiCegarLoop]: Abstraction has 200 states and 253 transitions. [2021-11-23 14:13:46,823 INFO L587 BuchiCegarLoop]: Abstraction has 200 states and 253 transitions. [2021-11-23 14:13:46,823 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-23 14:13:46,823 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 200 states and 253 transitions. [2021-11-23 14:13:46,825 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 140 [2021-11-23 14:13:46,825 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-23 14:13:46,825 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-23 14:13:46,826 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:13:46,826 INFO L843 BuchiCegarLoop]: Counterexample loop 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] [2021-11-23 14:13:46,826 INFO L791 eck$LassoCheckResult]: Stem: 836#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 745#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 709#L933 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 710#L926 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 814#L941 main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 773#L140 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 774#L113 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet12#1, test_#t~nondet13#1, test_#t~nondet14#1, test_#t~nondet15#1, test_~splverifierCounter~0#1, test_~tmp~2#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~2#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 763#L300-2 [2021-11-23 14:13:46,827 INFO L793 eck$LassoCheckResult]: Loop: 763#L300-2 assume !false; 804#L301 assume test_~splverifierCounter~0#1 < 4; 805#L302 test_~tmp~2#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1; 863#L310 assume !(0 != test_~tmp~2#1); 861#L310-2 test_~tmp___0~1#1 := test_#t~nondet13#1;havoc test_#t~nondet13#1; 859#L320 assume !(0 != test_~tmp___0~1#1); 857#L320-2 test_~tmp___2~0#1 := test_#t~nondet14#1;havoc test_#t~nondet14#1; 856#L330 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 853#L541 assume { :end_inline_startSystem } true; 792#L338-2 assume { :begin_inline_timeShift } true; 793#L366 assume !(0 != ~pumpRunning~0); 815#L366-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret17#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1; 816#L424 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret16#1, processEnvironment__wrappee__highWaterSensor_~tmp~3#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3#1; 723#L398-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret27#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~5#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~6#1;havoc isHighWaterLevel_~tmp~5#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~3#1;havoc isHighWaterSensorDry_~retValue_acc~3#1; 724#L242-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~3#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~3#1; 757#L247-1 isHighWaterLevel_#t~ret27#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~5#1 := isHighWaterLevel_#t~ret27#1;havoc isHighWaterLevel_#t~ret27#1; 743#L526-3 assume 0 != isHighWaterLevel_~tmp~5#1;isHighWaterLevel_~tmp___0~2#1 := 0; 744#L526-5 isHighWaterLevel_~retValue_acc~6#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1; 737#L532-1 processEnvironment__wrappee__highWaterSensor_#t~ret16#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~3#1 := processEnvironment__wrappee__highWaterSensor_#t~ret16#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret16#1; 738#L402-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~3#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 834#L390-2 assume { :end_inline_processEnvironment__wrappee__base } true; 835#L398-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 830#L424-1 assume { :end_inline_processEnvironment } true; 847#L373-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret10#1, __utac_acc__Specification4_spec__1_#t~ret11#1, __utac_acc__Specification4_spec__1_~tmp~1#1, __utac_acc__Specification4_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification4_spec__1_~tmp~1#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~2#1;havoc getWaterLevel_~retValue_acc~2#1;getWaterLevel_~retValue_acc~2#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~2#1; 846#L234 __utac_acc__Specification4_spec__1_#t~ret10#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~1#1 := __utac_acc__Specification4_spec__1_#t~ret10#1;havoc __utac_acc__Specification4_spec__1_#t~ret10#1; 844#L271 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~1#1); 715#L271-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 716#L383 assume { :end_inline_timeShift } true; 763#L300-2 [2021-11-23 14:13:46,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:13:46,827 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2021-11-23 14:13:46,827 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:13:46,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976894799] [2021-11-23 14:13:46,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:13:46,828 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:13:46,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 14:13:46,841 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 14:13:46,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 14:13:46,868 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 14:13:46,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:13:46,869 INFO L85 PathProgramCache]: Analyzing trace with hash 2093393760, now seen corresponding path program 1 times [2021-11-23 14:13:46,869 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:13:46,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748416175] [2021-11-23 14:13:46,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:13:46,870 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:13:46,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 14:13:46,886 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 14:13:46,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 14:13:46,912 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 14:13:46,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:13:46,912 INFO L85 PathProgramCache]: Analyzing trace with hash 842411812, now seen corresponding path program 1 times [2021-11-23 14:13:46,913 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:13:46,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952856490] [2021-11-23 14:13:46,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:13:46,913 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:13:46,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 14:13:46,939 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 14:13:47,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 14:13:47,052 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 14:13:50,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.11 02:13:50 BoogieIcfgContainer [2021-11-23 14:13:50,474 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-23 14:13:50,475 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 14:13:50,475 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 14:13:50,475 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 14:13:50,476 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:13:45" (3/4) ... [2021-11-23 14:13:50,479 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-11-23 14:13:50,548 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74615ce0-3288-4adc-9dec-f9777bdfb5d3/bin/uautomizer-wIGwrQj20G/witness.graphml [2021-11-23 14:13:50,548 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 14:13:50,549 INFO L158 Benchmark]: Toolchain (without parser) took 6523.90ms. Allocated memory was 100.7MB in the beginning and 169.9MB in the end (delta: 69.2MB). Free memory was 64.3MB in the beginning and 107.7MB in the end (delta: -43.4MB). Peak memory consumption was 26.7MB. Max. memory is 16.1GB. [2021-11-23 14:13:50,549 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 100.7MB. Free memory was 72.6MB in the beginning and 72.5MB in the end (delta: 28.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 14:13:50,550 INFO L158 Benchmark]: CACSL2BoogieTranslator took 569.88ms. Allocated memory is still 100.7MB. Free memory was 64.2MB in the beginning and 67.7MB in the end (delta: -3.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 14:13:50,551 INFO L158 Benchmark]: Boogie Procedure Inliner took 94.73ms. Allocated memory is still 100.7MB. Free memory was 67.7MB in the beginning and 64.7MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 14:13:50,551 INFO L158 Benchmark]: Boogie Preprocessor took 92.23ms. Allocated memory is still 100.7MB. Free memory was 64.5MB in the beginning and 62.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 14:13:50,552 INFO L158 Benchmark]: RCFGBuilder took 730.34ms. Allocated memory is still 100.7MB. Free memory was 62.4MB in the beginning and 41.6MB in the end (delta: 20.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2021-11-23 14:13:50,552 INFO L158 Benchmark]: BuchiAutomizer took 4956.48ms. Allocated memory was 100.7MB in the beginning and 169.9MB in the end (delta: 69.2MB). Free memory was 41.4MB in the beginning and 110.9MB in the end (delta: -69.5MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2021-11-23 14:13:50,553 INFO L158 Benchmark]: Witness Printer took 73.16ms. Allocated memory is still 169.9MB. Free memory was 110.9MB in the beginning and 107.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 14:13:50,556 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 100.7MB. Free memory was 72.6MB in the beginning and 72.5MB in the end (delta: 28.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 569.88ms. Allocated memory is still 100.7MB. Free memory was 64.2MB in the beginning and 67.7MB in the end (delta: -3.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 94.73ms. Allocated memory is still 100.7MB. Free memory was 67.7MB in the beginning and 64.7MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 92.23ms. Allocated memory is still 100.7MB. Free memory was 64.5MB in the beginning and 62.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 730.34ms. Allocated memory is still 100.7MB. Free memory was 62.4MB in the beginning and 41.6MB in the end (delta: 20.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * BuchiAutomizer took 4956.48ms. Allocated memory was 100.7MB in the beginning and 169.9MB in the end (delta: 69.2MB). Free memory was 41.4MB in the beginning and 110.9MB in the end (delta: -69.5MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. * Witness Printer took 73.16ms. Allocated memory is still 169.9MB. Free memory was 110.9MB in the beginning and 107.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 200 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.8s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 4.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 200 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 901 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 901 mSDsluCounter, 486 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 91 mSDsCounter, 28 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 38 IncrementalHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 28 mSolverCounterUnsat, 395 mSDtfsCounter, 38 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 300]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, NULL=0, head=0, tmp___0=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@142f3565=0, NULL=1, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6ba0c4e=0, tmp___0=0, methaneLevelCritical=0, retValue_acc=1, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@26e56f14=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@132e0652=0, \result=1, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7c6229cb=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@9002e96=29, tmp=1, tmp___2=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6165779=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@10720edc=0, cleanupTimeShifts=4, tmp=0, tmp=1, \result=0, tmp=0, head=0, \result=1, retValue_acc=1, tmp___1=0, NULL=0, retValue_acc=0, waterLevel=1, systemActive=1, tmp=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@b7a4219=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6610c77=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 300]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L50] int cleanupTimeShifts = 4; [L159] int waterLevel = 1; [L160] int methaneLevelCritical = 0; [L359] int pumpRunning = 0; [L360] int systemActive = 1; [L714] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L131] int retValue_acc ; [L132] int tmp ; [L136] FCALL select_helpers() [L137] FCALL select_features() [L138] CALL, EXPR valid_product() [L937] int retValue_acc ; [L940] retValue_acc = 1 [L941] return (retValue_acc); [L138] RET, EXPR valid_product() [L138] tmp = valid_product() [L140] COND TRUE \read(tmp) [L142] FCALL setup() [L143] CALL runTest() [L122] CALL test() [L291] int splverifierCounter ; [L292] int tmp ; [L293] int tmp___0 ; [L294] int tmp___1 ; [L295] int tmp___2 ; [L298] splverifierCounter = 0 Loop: [L300] COND TRUE 1 [L302] COND TRUE splverifierCounter < 4 [L308] tmp = __VERIFIER_nondet_int() [L310] COND FALSE !(\read(tmp)) [L318] tmp___0 = __VERIFIER_nondet_int() [L320] COND FALSE !(\read(tmp___0)) [L328] tmp___2 = __VERIFIER_nondet_int() [L330] COND TRUE \read(tmp___2) [L332] CALL startSystem() [L540] systemActive = 1 [L332] RET startSystem() [L345] CALL timeShift() [L366] COND FALSE !(\read(pumpRunning)) [L373] COND TRUE \read(systemActive) [L375] CALL processEnvironment() [L421] int tmp ; [L424] COND FALSE !(\read(pumpRunning)) [L439] CALL processEnvironment__wrappee__highWaterSensor() [L395] int tmp ; [L398] COND TRUE ! pumpRunning [L400] CALL, EXPR isHighWaterLevel() [L518] int retValue_acc ; [L519] int tmp ; [L520] int tmp___0 ; [L524] CALL, EXPR isHighWaterSensorDry() [L239] int retValue_acc ; [L242] COND TRUE waterLevel < 2 [L243] retValue_acc = 1 [L244] return (retValue_acc); [L524] RET, EXPR isHighWaterSensorDry() [L524] tmp = isHighWaterSensorDry() [L526] COND TRUE \read(tmp) [L527] tmp___0 = 0 [L531] retValue_acc = tmp___0 [L532] return (retValue_acc); [L400] RET, EXPR isHighWaterLevel() [L400] tmp = isHighWaterLevel() [L402] COND FALSE !(\read(tmp)) [L408] FCALL processEnvironment__wrappee__base() [L439] RET processEnvironment__wrappee__highWaterSensor() [L375] RET processEnvironment() [L381] CALL __utac_acc__Specification4_spec__1() [L264] int tmp ; [L265] int tmp___0 ; [L269] CALL, EXPR getWaterLevel() [L230] int retValue_acc ; [L233] retValue_acc = waterLevel [L234] return (retValue_acc); [L269] RET, EXPR getWaterLevel() [L269] tmp = getWaterLevel() [L271] COND FALSE !(tmp == 0) [L381] RET __utac_acc__Specification4_spec__1() [L345] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-11-23 14:13:50,624 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74615ce0-3288-4adc-9dec-f9777bdfb5d3/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)