./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product35.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bfe08ce-a06f-4c76-856f-67b1480db862/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bfe08ce-a06f-4c76-856f-67b1480db862/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bfe08ce-a06f-4c76-856f-67b1480db862/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bfe08ce-a06f-4c76-856f-67b1480db862/bin/uautomizer-DQz5hQGWxF/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product35.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bfe08ce-a06f-4c76-856f-67b1480db862/bin/uautomizer-DQz5hQGWxF/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bfe08ce-a06f-4c76-856f-67b1480db862/bin/uautomizer-DQz5hQGWxF --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 34d4dbed37590326da938d00ced1aba27649a4f6be46ad5130f0beeedcfaf5dd --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 07:24:48,919 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 07:24:48,921 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 07:24:48,991 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 07:24:48,992 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 07:24:48,997 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 07:24:49,000 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 07:24:49,006 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 07:24:49,009 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 07:24:49,016 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 07:24:49,017 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 07:24:49,019 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 07:24:49,020 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 07:24:49,023 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 07:24:49,026 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 07:24:49,031 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 07:24:49,034 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 07:24:49,035 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 07:24:49,038 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 07:24:49,047 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 07:24:49,049 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 07:24:49,051 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 07:24:49,055 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 07:24:49,056 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 07:24:49,067 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 07:24:49,068 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 07:24:49,068 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 07:24:49,071 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 07:24:49,076 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 07:24:49,077 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 07:24:49,078 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 07:24:49,079 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 07:24:49,082 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 07:24:49,083 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 07:24:49,085 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 07:24:49,085 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 07:24:49,086 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 07:24:49,087 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 07:24:49,087 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 07:24:49,088 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 07:24:49,089 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 07:24:49,091 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bfe08ce-a06f-4c76-856f-67b1480db862/bin/uautomizer-DQz5hQGWxF/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-20 07:24:49,144 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 07:24:49,145 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 07:24:49,145 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 07:24:49,146 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 07:24:49,148 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 07:24:49,148 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 07:24:49,148 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 07:24:49,149 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-20 07:24:49,149 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-20 07:24:49,149 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-20 07:24:49,150 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-20 07:24:49,151 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-20 07:24:49,151 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-20 07:24:49,151 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 07:24:49,151 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 07:24:49,152 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-20 07:24:49,152 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 07:24:49,152 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 07:24:49,152 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 07:24:49,153 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-20 07:24:49,153 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-20 07:24:49,153 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-20 07:24:49,153 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 07:24:49,154 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 07:24:49,154 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-20 07:24:49,154 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 07:24:49,154 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-20 07:24:49,155 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 07:24:49,155 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 07:24:49,155 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 07:24:49,156 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 07:24:49,156 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 07:24:49,157 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-20 07:24:49,158 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_1bfe08ce-a06f-4c76-856f-67b1480db862/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bfe08ce-a06f-4c76-856f-67b1480db862/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 34d4dbed37590326da938d00ced1aba27649a4f6be46ad5130f0beeedcfaf5dd [2021-11-20 07:24:49,521 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 07:24:49,558 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 07:24:49,561 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 07:24:49,563 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 07:24:49,564 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 07:24:49,566 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bfe08ce-a06f-4c76-856f-67b1480db862/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/product-lines/minepump_spec2_product35.cil.c [2021-11-20 07:24:49,655 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bfe08ce-a06f-4c76-856f-67b1480db862/bin/uautomizer-DQz5hQGWxF/data/5f6802af9/1ea9c70029de4fd384be331ce4ce2b2b/FLAG0baba9121 [2021-11-20 07:24:50,258 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 07:24:50,259 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bfe08ce-a06f-4c76-856f-67b1480db862/sv-benchmarks/c/product-lines/minepump_spec2_product35.cil.c [2021-11-20 07:24:50,281 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bfe08ce-a06f-4c76-856f-67b1480db862/bin/uautomizer-DQz5hQGWxF/data/5f6802af9/1ea9c70029de4fd384be331ce4ce2b2b/FLAG0baba9121 [2021-11-20 07:24:50,564 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bfe08ce-a06f-4c76-856f-67b1480db862/bin/uautomizer-DQz5hQGWxF/data/5f6802af9/1ea9c70029de4fd384be331ce4ce2b2b [2021-11-20 07:24:50,567 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 07:24:50,569 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 07:24:50,571 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 07:24:50,571 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 07:24:50,575 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 07:24:50,576 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:24:50" (1/1) ... [2021-11-20 07:24:50,577 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cffb6da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:24:50, skipping insertion in model container [2021-11-20 07:24:50,578 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:24:50" (1/1) ... [2021-11-20 07:24:50,588 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 07:24:50,661 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 07:24:51,003 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_1bfe08ce-a06f-4c76-856f-67b1480db862/sv-benchmarks/c/product-lines/minepump_spec2_product35.cil.c[15769,15782] [2021-11-20 07:24:51,037 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:24:51,049 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 07:24:51,137 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_1bfe08ce-a06f-4c76-856f-67b1480db862/sv-benchmarks/c/product-lines/minepump_spec2_product35.cil.c[15769,15782] [2021-11-20 07:24:51,149 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:24:51,171 INFO L208 MainTranslator]: Completed translation [2021-11-20 07:24:51,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:24:51 WrapperNode [2021-11-20 07:24:51,172 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 07:24:51,174 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 07:24:51,174 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 07:24:51,174 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 07:24:51,183 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:24:51" (1/1) ... [2021-11-20 07:24:51,214 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:24:51" (1/1) ... [2021-11-20 07:24:51,282 INFO L137 Inliner]: procedures = 54, calls = 152, calls flagged for inlining = 49, calls inlined = 50, statements flattened = 412 [2021-11-20 07:24:51,285 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 07:24:51,286 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 07:24:51,287 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 07:24:51,287 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 07:24:51,297 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:24:51" (1/1) ... [2021-11-20 07:24:51,297 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:24:51" (1/1) ... [2021-11-20 07:24:51,307 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:24:51" (1/1) ... [2021-11-20 07:24:51,308 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:24:51" (1/1) ... [2021-11-20 07:24:51,317 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:24:51" (1/1) ... [2021-11-20 07:24:51,324 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:24:51" (1/1) ... [2021-11-20 07:24:51,327 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:24:51" (1/1) ... [2021-11-20 07:24:51,331 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 07:24:51,332 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 07:24:51,333 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 07:24:51,348 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 07:24:51,360 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:24:51" (1/1) ... [2021-11-20 07:24:51,369 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:24:51,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bfe08ce-a06f-4c76-856f-67b1480db862/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:24:51,397 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bfe08ce-a06f-4c76-856f-67b1480db862/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:24:51,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bfe08ce-a06f-4c76-856f-67b1480db862/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-20 07:24:51,443 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 07:24:51,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 07:24:51,444 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 07:24:51,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 07:24:51,527 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 07:24:51,529 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 07:24:51,870 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 07:24:51,880 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 07:24:51,895 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-20 07:24:51,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:24:51 BoogieIcfgContainer [2021-11-20 07:24:51,898 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 07:24:51,899 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-20 07:24:51,900 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-20 07:24:51,903 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-20 07:24:51,904 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 07:24:51,915 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 07:24:50" (1/3) ... [2021-11-20 07:24:51,917 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@718081af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 07:24:51, skipping insertion in model container [2021-11-20 07:24:51,918 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 07:24:51,918 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:24:51" (2/3) ... [2021-11-20 07:24:51,918 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@718081af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 07:24:51, skipping insertion in model container [2021-11-20 07:24:51,919 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 07:24:51,919 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:24:51" (3/3) ... [2021-11-20 07:24:51,920 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product35.cil.c [2021-11-20 07:24:51,996 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-20 07:24:51,996 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-20 07:24:51,996 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-20 07:24:51,996 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-20 07:24:51,997 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-20 07:24:51,997 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-20 07:24:51,997 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-20 07:24:51,997 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-20 07:24:52,024 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 113 states, 112 states have (on average 1.3928571428571428) internal successors, (156), 112 states have internal predecessors, (156), 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) [2021-11-20 07:24:52,075 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 72 [2021-11-20 07:24:52,075 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 07:24:52,075 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 07:24:52,084 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:24:52,084 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:24:52,085 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-20 07:24:52,086 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 113 states, 112 states have (on average 1.3928571428571428) internal successors, (156), 112 states have internal predecessors, (156), 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) [2021-11-20 07:24:52,106 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 72 [2021-11-20 07:24:52,107 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 07:24:52,107 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 07:24:52,109 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:24:52,109 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:24:52,123 INFO L791 eck$LassoCheckResult]: Stem: 99#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(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 28#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret45#1, main_~retValue_acc~8#1, main_~tmp~7#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 26#L729true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 43#L722true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~7#1;havoc valid_product_~retValue_acc~7#1;valid_product_~retValue_acc~7#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~7#1; 18#L737true main_#t~ret45#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret45#1;havoc main_#t~ret45#1; 92#L834true assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 4#L810true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 93#L671true assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_#t~nondet41#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 40#L607-2true [2021-11-20 07:24:52,126 INFO L793 eck$LassoCheckResult]: Loop: 40#L607-2true assume !false; 48#L608true assume test_~splverifierCounter~0#1 < 4; 60#L609true test_~tmp~5#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 45#L617true assume !(0 != test_~tmp~5#1); 98#L617-2true test_~tmp___0~1#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 35#L627true assume !(0 != test_~tmp___0~1#1); 42#L627-2true test_~tmp___2~0#1 := test_#t~nondet40#1;havoc test_#t~nondet40#1; 84#L637true assume 0 != test_~tmp___2~0#1; 91#L643-2true assume { :begin_inline_timeShift } true; 14#L434true assume !(0 != ~pumpRunning~0); 41#L434-2true assume !(0 != ~systemActive~0); 103#L441-1true assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret42#1, __utac_acc__Specification2_spec__2_#t~ret43#1, __utac_acc__Specification2_spec__2_~tmp~6#1, __utac_acc__Specification2_spec__2_~tmp___0~2#1;havoc __utac_acc__Specification2_spec__2_~tmp~6#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;isMethaneLevelCritical_~retValue_acc~9#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~9#1; 95#L892true __utac_acc__Specification2_spec__2_#t~ret42#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~6#1 := __utac_acc__Specification2_spec__2_#t~ret42#1;havoc __utac_acc__Specification2_spec__2_#t~ret42#1; 52#L682true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~6#1);~methAndRunningLastTime~0 := 0; 19#L682-1true assume { :end_inline___utac_acc__Specification2_spec__2 } true; 115#L451true assume { :end_inline_timeShift } true; 40#L607-2true [2021-11-20 07:24:52,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:24:52,139 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2021-11-20 07:24:52,161 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:24:52,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756671302] [2021-11-20 07:24:52,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:24:52,166 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:24:52,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:24:52,367 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:24:52,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:24:52,474 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:24:52,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:24:52,478 INFO L85 PathProgramCache]: Analyzing trace with hash 1180339210, now seen corresponding path program 1 times [2021-11-20 07:24:52,478 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:24:52,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050207027] [2021-11-20 07:24:52,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:24:52,479 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:24:52,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:24:52,487 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:24:52,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:24:52,498 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:24:52,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:24:52,500 INFO L85 PathProgramCache]: Analyzing trace with hash 1018051827, now seen corresponding path program 1 times [2021-11-20 07:24:52,500 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:24:52,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278365287] [2021-11-20 07:24:52,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:24:52,501 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:24:52,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:24:52,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:24:52,692 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:24:52,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278365287] [2021-11-20 07:24:52,694 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278365287] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:24:52,694 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:24:52,694 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 07:24:52,695 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493211591] [2021-11-20 07:24:52,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:24:52,855 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:24:52,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 07:24:52,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-20 07:24:52,894 INFO L87 Difference]: Start difference. First operand has 113 states, 112 states have (on average 1.3928571428571428) internal successors, (156), 112 states have internal predecessors, (156), 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) [2021-11-20 07:24:53,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:24:53,085 INFO L93 Difference]: Finished difference Result 279 states and 366 transitions. [2021-11-20 07:24:53,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 07:24:53,105 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 279 states and 366 transitions. [2021-11-20 07:24:53,112 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 177 [2021-11-20 07:24:53,121 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 279 states to 249 states and 336 transitions. [2021-11-20 07:24:53,123 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 249 [2021-11-20 07:24:53,125 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 249 [2021-11-20 07:24:53,126 INFO L73 IsDeterministic]: Start isDeterministic. Operand 249 states and 336 transitions. [2021-11-20 07:24:53,128 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:24:53,129 INFO L681 BuchiCegarLoop]: Abstraction has 249 states and 336 transitions. [2021-11-20 07:24:53,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states and 336 transitions. [2021-11-20 07:24:53,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 155. [2021-11-20 07:24:53,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 155 states have (on average 1.3483870967741935) internal successors, (209), 154 states have internal predecessors, (209), 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) [2021-11-20 07:24:53,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 209 transitions. [2021-11-20 07:24:53,181 INFO L704 BuchiCegarLoop]: Abstraction has 155 states and 209 transitions. [2021-11-20 07:24:53,181 INFO L587 BuchiCegarLoop]: Abstraction has 155 states and 209 transitions. [2021-11-20 07:24:53,181 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-20 07:24:53,181 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 155 states and 209 transitions. [2021-11-20 07:24:53,184 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 110 [2021-11-20 07:24:53,185 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 07:24:53,185 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 07:24:53,186 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:24:53,186 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] [2021-11-20 07:24:53,187 INFO L791 eck$LassoCheckResult]: Stem: 508#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(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 454#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret45#1, main_~retValue_acc~8#1, main_~tmp~7#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 451#L729 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 452#L722 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~7#1;havoc valid_product_~retValue_acc~7#1;valid_product_~retValue_acc~7#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~7#1; 436#L737 main_#t~ret45#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret45#1;havoc main_#t~ret45#1; 437#L834 assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 410#L810 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 411#L671 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_#t~nondet41#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 470#L607-2 [2021-11-20 07:24:53,187 INFO L793 eck$LassoCheckResult]: Loop: 470#L607-2 assume !false; 471#L608 assume test_~splverifierCounter~0#1 < 4; 478#L609 test_~tmp~5#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 475#L617 assume !(0 != test_~tmp~5#1); 450#L617-2 test_~tmp___0~1#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 461#L627 assume !(0 != test_~tmp___0~1#1); 463#L627-2 test_~tmp___2~0#1 := test_#t~nondet40#1;havoc test_#t~nondet40#1; 473#L637 assume 0 != test_~tmp___2~0#1; 447#L643-2 assume { :begin_inline_timeShift } true; 429#L434 assume !(0 != ~pumpRunning~0); 430#L434-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret27#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 472#L466 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 510#L458-1 assume { :end_inline_processEnvironment__wrappee__base } true; 484#L466-1 assume { :end_inline_processEnvironment } true; 485#L441-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret42#1, __utac_acc__Specification2_spec__2_#t~ret43#1, __utac_acc__Specification2_spec__2_~tmp~6#1, __utac_acc__Specification2_spec__2_~tmp___0~2#1;havoc __utac_acc__Specification2_spec__2_~tmp~6#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;isMethaneLevelCritical_~retValue_acc~9#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~9#1; 506#L892 __utac_acc__Specification2_spec__2_#t~ret42#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~6#1 := __utac_acc__Specification2_spec__2_#t~ret42#1;havoc __utac_acc__Specification2_spec__2_#t~ret42#1; 482#L682 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~6#1);~methAndRunningLastTime~0 := 0; 438#L682-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 439#L451 assume { :end_inline_timeShift } true; 470#L607-2 [2021-11-20 07:24:53,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:24:53,188 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2021-11-20 07:24:53,188 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:24:53,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136685306] [2021-11-20 07:24:53,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:24:53,190 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:24:53,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:24:53,210 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:24:53,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:24:53,246 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:24:53,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:24:53,260 INFO L85 PathProgramCache]: Analyzing trace with hash 1792151062, now seen corresponding path program 1 times [2021-11-20 07:24:53,261 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:24:53,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449908452] [2021-11-20 07:24:53,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:24:53,262 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:24:53,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:24:53,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:24:53,305 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:24:53,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449908452] [2021-11-20 07:24:53,305 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449908452] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:24:53,306 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:24:53,306 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 07:24:53,306 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99129493] [2021-11-20 07:24:53,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:24:53,307 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-20 07:24:53,307 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:24:53,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:24:53,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 07:24:53,308 INFO L87 Difference]: Start difference. First operand 155 states and 209 transitions. cyclomatic complexity: 57 Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2021-11-20 07:24:53,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:24:53,412 INFO L93 Difference]: Finished difference Result 205 states and 266 transitions. [2021-11-20 07:24:53,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:24:53,414 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 205 states and 266 transitions. [2021-11-20 07:24:53,418 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 149 [2021-11-20 07:24:53,422 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 205 states to 205 states and 266 transitions. [2021-11-20 07:24:53,422 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 205 [2021-11-20 07:24:53,424 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 205 [2021-11-20 07:24:53,424 INFO L73 IsDeterministic]: Start isDeterministic. Operand 205 states and 266 transitions. [2021-11-20 07:24:53,426 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:24:53,426 INFO L681 BuchiCegarLoop]: Abstraction has 205 states and 266 transitions. [2021-11-20 07:24:53,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states and 266 transitions. [2021-11-20 07:24:53,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2021-11-20 07:24:53,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 205 states have (on average 1.2975609756097561) internal successors, (266), 204 states have internal predecessors, (266), 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) [2021-11-20 07:24:53,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 266 transitions. [2021-11-20 07:24:53,445 INFO L704 BuchiCegarLoop]: Abstraction has 205 states and 266 transitions. [2021-11-20 07:24:53,445 INFO L587 BuchiCegarLoop]: Abstraction has 205 states and 266 transitions. [2021-11-20 07:24:53,445 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-20 07:24:53,445 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 205 states and 266 transitions. [2021-11-20 07:24:53,447 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 149 [2021-11-20 07:24:53,448 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 07:24:53,448 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 07:24:53,449 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:24:53,449 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] [2021-11-20 07:24:53,449 INFO L791 eck$LassoCheckResult]: Stem: 888#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(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 821#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret45#1, main_~retValue_acc~8#1, main_~tmp~7#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 817#L729 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 818#L722 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~7#1;havoc valid_product_~retValue_acc~7#1;valid_product_~retValue_acc~7#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~7#1; 801#L737 main_#t~ret45#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret45#1;havoc main_#t~ret45#1; 802#L834 assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 776#L810 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 777#L671 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_#t~nondet41#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 838#L607-2 [2021-11-20 07:24:53,450 INFO L793 eck$LassoCheckResult]: Loop: 838#L607-2 assume !false; 839#L608 assume test_~splverifierCounter~0#1 < 4; 847#L609 test_~tmp~5#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 958#L617 assume !(0 != test_~tmp~5#1); 887#L617-2 test_~tmp___0~1#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 828#L627 assume !(0 != test_~tmp___0~1#1); 830#L627-2 test_~tmp___2~0#1 := test_#t~nondet40#1;havoc test_#t~nondet40#1; 842#L637 assume 0 != test_~tmp___2~0#1; 813#L643-2 assume { :begin_inline_timeShift } true; 883#L434 assume !(0 != ~pumpRunning~0); 840#L434-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret27#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 841#L466 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret37#1, isHighWaterLevel_~retValue_acc~5#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~5#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~11#1;havoc isHighWaterSensorDry_~retValue_acc~11#1; 862#L932 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~11#1; 863#L937 isHighWaterLevel_#t~ret37#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret37#1;havoc isHighWaterLevel_#t~ret37#1; 866#L568 assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~0#1 := 0; 809#L568-2 isHighWaterLevel_~retValue_acc~5#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~5#1; 810#L574 processEnvironment_#t~ret27#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~3#1 := processEnvironment_#t~ret27#1;havoc processEnvironment_#t~ret27#1; 825#L470 assume !(0 != processEnvironment_~tmp~3#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 879#L458 assume { :end_inline_processEnvironment__wrappee__base } true; 853#L466-1 assume { :end_inline_processEnvironment } true; 854#L441-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret42#1, __utac_acc__Specification2_spec__2_#t~ret43#1, __utac_acc__Specification2_spec__2_~tmp~6#1, __utac_acc__Specification2_spec__2_~tmp___0~2#1;havoc __utac_acc__Specification2_spec__2_~tmp~6#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;isMethaneLevelCritical_~retValue_acc~9#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~9#1; 884#L892 __utac_acc__Specification2_spec__2_#t~ret42#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~6#1 := __utac_acc__Specification2_spec__2_#t~ret42#1;havoc __utac_acc__Specification2_spec__2_#t~ret42#1; 851#L682 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~6#1);~methAndRunningLastTime~0 := 0; 803#L682-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 804#L451 assume { :end_inline_timeShift } true; 838#L607-2 [2021-11-20 07:24:53,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:24:53,451 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2021-11-20 07:24:53,451 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:24:53,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809117620] [2021-11-20 07:24:53,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:24:53,452 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:24:53,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:24:53,470 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:24:53,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:24:53,496 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:24:53,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:24:53,497 INFO L85 PathProgramCache]: Analyzing trace with hash 192805886, now seen corresponding path program 1 times [2021-11-20 07:24:53,497 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:24:53,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266896717] [2021-11-20 07:24:53,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:24:53,498 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:24:53,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:24:53,506 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:24:53,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:24:53,534 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:24:53,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:24:53,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1462255925, now seen corresponding path program 1 times [2021-11-20 07:24:53,536 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:24:53,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296448967] [2021-11-20 07:24:53,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:24:53,537 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:24:53,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:24:53,568 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:24:53,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:24:53,623 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:24:57,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 07:24:57 BoogieIcfgContainer [2021-11-20 07:24:57,637 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-20 07:24:57,638 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 07:24:57,639 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 07:24:57,639 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 07:24:57,639 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:24:51" (3/4) ... [2021-11-20 07:24:57,642 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-11-20 07:24:57,724 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bfe08ce-a06f-4c76-856f-67b1480db862/bin/uautomizer-DQz5hQGWxF/witness.graphml [2021-11-20 07:24:57,728 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 07:24:57,729 INFO L158 Benchmark]: Toolchain (without parser) took 7160.07ms. Allocated memory was 102.8MB in the beginning and 180.4MB in the end (delta: 77.6MB). Free memory was 60.4MB in the beginning and 70.4MB in the end (delta: -10.1MB). Peak memory consumption was 68.3MB. Max. memory is 16.1GB. [2021-11-20 07:24:57,730 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 102.8MB. Free memory is still 77.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:24:57,730 INFO L158 Benchmark]: CACSL2BoogieTranslator took 602.12ms. Allocated memory is still 102.8MB. Free memory was 60.1MB in the beginning and 70.2MB in the end (delta: -10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-20 07:24:57,732 INFO L158 Benchmark]: Boogie Procedure Inliner took 111.93ms. Allocated memory is still 102.8MB. Free memory was 70.2MB in the beginning and 67.1MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:24:57,733 INFO L158 Benchmark]: Boogie Preprocessor took 45.42ms. Allocated memory is still 102.8MB. Free memory was 67.1MB in the beginning and 65.4MB in the end (delta: 1.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-20 07:24:57,734 INFO L158 Benchmark]: RCFGBuilder took 566.08ms. Allocated memory is still 102.8MB. Free memory was 65.1MB in the beginning and 47.1MB in the end (delta: 18.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-11-20 07:24:57,735 INFO L158 Benchmark]: BuchiAutomizer took 5738.25ms. Allocated memory was 102.8MB in the beginning and 180.4MB in the end (delta: 77.6MB). Free memory was 46.8MB in the beginning and 73.6MB in the end (delta: -26.8MB). Peak memory consumption was 62.2MB. Max. memory is 16.1GB. [2021-11-20 07:24:57,736 INFO L158 Benchmark]: Witness Printer took 89.69ms. Allocated memory is still 180.4MB. Free memory was 73.6MB in the beginning and 70.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-20 07:24:57,738 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 102.8MB. Free memory is still 77.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 602.12ms. Allocated memory is still 102.8MB. Free memory was 60.1MB in the beginning and 70.2MB in the end (delta: -10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 111.93ms. Allocated memory is still 102.8MB. Free memory was 70.2MB in the beginning and 67.1MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 45.42ms. Allocated memory is still 102.8MB. Free memory was 67.1MB in the beginning and 65.4MB in the end (delta: 1.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 566.08ms. Allocated memory is still 102.8MB. Free memory was 65.1MB in the beginning and 47.1MB in the end (delta: 18.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * BuchiAutomizer took 5738.25ms. Allocated memory was 102.8MB in the beginning and 180.4MB in the end (delta: 77.6MB). Free memory was 46.8MB in the beginning and 73.6MB in the end (delta: -26.8MB). Peak memory consumption was 62.2MB. Max. memory is 16.1GB. * Witness Printer took 89.69ms. Allocated memory is still 180.4MB. Free memory was 73.6MB in the beginning and 70.4MB 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 205 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.6s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 5.0s. Construction of modules took 0.1s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 94 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 205 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 635 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 635 mSDsluCounter, 1097 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 805 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 64 IncrementalHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 292 mSDtfsCounter, 64 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: 607]: 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, retValue_acc=0, tmp___0=0, NULL=0, head=0, tmp___0=0, pumpRunning=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6cb5e8d9=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@48fd00a=0, methaneLevelCritical=0, tmp=0, \result=0, retValue_acc=1, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7635c756=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4d0188f1=0, \result=1, retValue_acc=0, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2a6431d8=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2fc34b0d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3c00e9df=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@29d5b5ba=29, tmp=1, tmp___2=29, methAndRunningLastTime=0, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5bac2897=0, \result=0, tmp=0, head=0, retValue_acc=0, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, tmp=0, \result=0, tmp___0=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 607]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L426] int pumpRunning = 0; [L427] int systemActive = 1; [L665] int methAndRunningLastTime ; [L751] int cleanupTimeShifts = 4; [L849] int waterLevel = 1; [L850] int methaneLevelCritical = 0; [L825] int retValue_acc ; [L826] int tmp ; [L830] FCALL select_helpers() [L831] FCALL select_features() [L832] CALL, EXPR valid_product() [L733] int retValue_acc ; [L736] retValue_acc = 1 [L737] return (retValue_acc); [L832] RET, EXPR valid_product() [L832] tmp = valid_product() [L834] COND TRUE \read(tmp) [L836] FCALL setup() [L837] CALL runTest() [L818] CALL __utac_acc__Specification2_spec__1() [L670] methAndRunningLastTime = 0 [L818] RET __utac_acc__Specification2_spec__1() [L819] CALL test() [L598] int splverifierCounter ; [L599] int tmp ; [L600] int tmp___0 ; [L601] int tmp___1 ; [L602] int tmp___2 ; [L605] splverifierCounter = 0 Loop: [L607] COND TRUE 1 [L609] COND TRUE splverifierCounter < 4 [L615] tmp = __VERIFIER_nondet_int() [L617] COND FALSE !(\read(tmp)) [L625] tmp___0 = __VERIFIER_nondet_int() [L627] COND FALSE !(\read(tmp___0)) [L635] tmp___2 = __VERIFIER_nondet_int() [L637] COND TRUE \read(tmp___2) [L652] CALL timeShift() [L434] COND FALSE !(\read(pumpRunning)) [L441] COND TRUE \read(systemActive) [L443] CALL processEnvironment() [L463] int tmp ; [L466] COND TRUE ! pumpRunning [L468] CALL, EXPR isHighWaterLevel() [L560] int retValue_acc ; [L561] int tmp ; [L562] int tmp___0 ; [L566] CALL, EXPR isHighWaterSensorDry() [L929] int retValue_acc ; [L932] COND TRUE waterLevel < 2 [L933] retValue_acc = 1 [L934] return (retValue_acc); [L566] RET, EXPR isHighWaterSensorDry() [L566] tmp = isHighWaterSensorDry() [L568] COND TRUE \read(tmp) [L569] tmp___0 = 0 [L573] retValue_acc = tmp___0 [L574] return (retValue_acc); [L468] RET, EXPR isHighWaterLevel() [L468] tmp = isHighWaterLevel() [L470] COND FALSE !(\read(tmp)) [L476] FCALL processEnvironment__wrappee__base() [L443] RET processEnvironment() [L449] CALL __utac_acc__Specification2_spec__2() [L675] int tmp ; [L676] int tmp___0 ; [L680] CALL, EXPR isMethaneLevelCritical() [L888] int retValue_acc ; [L891] retValue_acc = methaneLevelCritical [L892] return (retValue_acc); [L680] RET, EXPR isMethaneLevelCritical() [L680] tmp = isMethaneLevelCritical() [L682] COND FALSE !(\read(tmp)) [L698] methAndRunningLastTime = 0 [L449] RET __utac_acc__Specification2_spec__2() [L652] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-11-20 07:24:57,793 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bfe08ce-a06f-4c76-856f-67b1480db862/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with 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)