./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product33.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d02db8d-a296-4693-9554-79317c82e1de/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d02db8d-a296-4693-9554-79317c82e1de/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d02db8d-a296-4693-9554-79317c82e1de/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d02db8d-a296-4693-9554-79317c82e1de/bin/uautomizer-uyxdKDjOR8/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product33.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d02db8d-a296-4693-9554-79317c82e1de/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d02db8d-a296-4693-9554-79317c82e1de/bin/uautomizer-uyxdKDjOR8 --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 ae076af2cea67b9cfc404edc1600766999266c2b24082e43516a66dae23512b8 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 16:14:14,389 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 16:14:14,390 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 16:14:14,408 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 16:14:14,408 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 16:14:14,409 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 16:14:14,410 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 16:14:14,412 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 16:14:14,413 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 16:14:14,414 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 16:14:14,415 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 16:14:14,416 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 16:14:14,416 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 16:14:14,417 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 16:14:14,418 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 16:14:14,419 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 16:14:14,420 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 16:14:14,421 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 16:14:14,422 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 16:14:14,424 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 16:14:14,425 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 16:14:14,426 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 16:14:14,427 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 16:14:14,428 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 16:14:14,431 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 16:14:14,431 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 16:14:14,432 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 16:14:14,432 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 16:14:14,433 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 16:14:14,434 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 16:14:14,434 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 16:14:14,435 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 16:14:14,435 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 16:14:14,436 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 16:14:14,437 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 16:14:14,437 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 16:14:14,437 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 16:14:14,438 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 16:14:14,438 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 16:14:14,438 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 16:14:14,439 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 16:14:14,440 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d02db8d-a296-4693-9554-79317c82e1de/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-12-13 16:14:14,460 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 16:14:14,460 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 16:14:14,460 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 16:14:14,460 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 16:14:14,461 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 16:14:14,461 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 16:14:14,462 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 16:14:14,462 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-12-13 16:14:14,462 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-12-13 16:14:14,462 INFO L138 SettingsManager]: * Use old map elimination=false [2022-12-13 16:14:14,462 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-12-13 16:14:14,463 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-12-13 16:14:14,463 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-12-13 16:14:14,463 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 16:14:14,463 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 16:14:14,463 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 16:14:14,463 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 16:14:14,464 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 16:14:14,464 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 16:14:14,464 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-12-13 16:14:14,464 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-12-13 16:14:14,464 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-12-13 16:14:14,464 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 16:14:14,465 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 16:14:14,465 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-12-13 16:14:14,465 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 16:14:14,465 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-12-13 16:14:14,465 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 16:14:14,465 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 16:14:14,466 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 16:14:14,466 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 16:14:14,467 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-12-13 16:14:14,467 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_3d02db8d-a296-4693-9554-79317c82e1de/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d02db8d-a296-4693-9554-79317c82e1de/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ae076af2cea67b9cfc404edc1600766999266c2b24082e43516a66dae23512b8 [2022-12-13 16:14:14,655 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 16:14:14,675 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 16:14:14,677 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 16:14:14,678 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 16:14:14,678 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 16:14:14,679 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d02db8d-a296-4693-9554-79317c82e1de/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/product-lines/minepump_spec1_product33.cil.c [2022-12-13 16:14:17,283 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 16:14:17,427 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 16:14:17,427 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d02db8d-a296-4693-9554-79317c82e1de/sv-benchmarks/c/product-lines/minepump_spec1_product33.cil.c [2022-12-13 16:14:17,435 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d02db8d-a296-4693-9554-79317c82e1de/bin/uautomizer-uyxdKDjOR8/data/f7fc5e6b4/d1f10e98b8af41348b26c45075aca6fc/FLAG8cdf29f6e [2022-12-13 16:14:17,445 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d02db8d-a296-4693-9554-79317c82e1de/bin/uautomizer-uyxdKDjOR8/data/f7fc5e6b4/d1f10e98b8af41348b26c45075aca6fc [2022-12-13 16:14:17,447 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 16:14:17,448 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 16:14:17,449 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 16:14:17,449 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 16:14:17,452 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 16:14:17,452 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:14:17" (1/1) ... [2022-12-13 16:14:17,453 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50da5ba3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:14:17, skipping insertion in model container [2022-12-13 16:14:17,454 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:14:17" (1/1) ... [2022-12-13 16:14:17,459 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 16:14:17,486 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 16:14:17,631 WARN L237 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_3d02db8d-a296-4693-9554-79317c82e1de/sv-benchmarks/c/product-lines/minepump_spec1_product33.cil.c[11292,11305] [2022-12-13 16:14:17,652 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:14:17,662 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 16:14:17,696 WARN L237 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_3d02db8d-a296-4693-9554-79317c82e1de/sv-benchmarks/c/product-lines/minepump_spec1_product33.cil.c[11292,11305] [2022-12-13 16:14:17,708 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:14:17,720 INFO L208 MainTranslator]: Completed translation [2022-12-13 16:14:17,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:14:17 WrapperNode [2022-12-13 16:14:17,720 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 16:14:17,721 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 16:14:17,721 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 16:14:17,721 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 16:14:17,726 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:14:17" (1/1) ... [2022-12-13 16:14:17,734 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:14:17" (1/1) ... [2022-12-13 16:14:17,752 INFO L138 Inliner]: procedures = 52, calls = 93, calls flagged for inlining = 46, calls inlined = 47, statements flattened = 333 [2022-12-13 16:14:17,753 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 16:14:17,753 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 16:14:17,753 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 16:14:17,753 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 16:14:17,761 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:14:17" (1/1) ... [2022-12-13 16:14:17,761 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:14:17" (1/1) ... [2022-12-13 16:14:17,763 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:14:17" (1/1) ... [2022-12-13 16:14:17,763 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:14:17" (1/1) ... [2022-12-13 16:14:17,766 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:14:17" (1/1) ... [2022-12-13 16:14:17,770 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:14:17" (1/1) ... [2022-12-13 16:14:17,771 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:14:17" (1/1) ... [2022-12-13 16:14:17,772 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:14:17" (1/1) ... [2022-12-13 16:14:17,774 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 16:14:17,774 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 16:14:17,774 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 16:14:17,774 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 16:14:17,775 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:14:17" (1/1) ... [2022-12-13 16:14:17,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 16:14:17,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d02db8d-a296-4693-9554-79317c82e1de/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:14:17,799 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d02db8d-a296-4693-9554-79317c82e1de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 16:14:17,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d02db8d-a296-4693-9554-79317c82e1de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-12-13 16:14:17,826 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 16:14:17,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 16:14:17,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 16:14:17,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 16:14:17,886 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 16:14:17,888 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 16:14:18,109 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 16:14:18,114 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 16:14:18,114 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-13 16:14:18,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:14:18 BoogieIcfgContainer [2022-12-13 16:14:18,115 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 16:14:18,116 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-12-13 16:14:18,116 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-12-13 16:14:18,119 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-12-13 16:14:18,119 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 16:14:18,120 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.12 04:14:17" (1/3) ... [2022-12-13 16:14:18,120 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1174e80e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 04:14:18, skipping insertion in model container [2022-12-13 16:14:18,120 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 16:14:18,121 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:14:17" (2/3) ... [2022-12-13 16:14:18,121 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1174e80e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 04:14:18, skipping insertion in model container [2022-12-13 16:14:18,121 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 16:14:18,121 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:14:18" (3/3) ... [2022-12-13 16:14:18,122 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product33.cil.c [2022-12-13 16:14:18,163 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-12-13 16:14:18,163 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-12-13 16:14:18,163 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-12-13 16:14:18,163 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-12-13 16:14:18,164 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-12-13 16:14:18,164 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-12-13 16:14:18,164 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-12-13 16:14:18,164 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-12-13 16:14:18,167 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 105 states, 104 states have (on average 1.3846153846153846) internal successors, (144), 104 states have internal predecessors, (144), 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) [2022-12-13 16:14:18,185 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 66 [2022-12-13 16:14:18,185 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 16:14:18,185 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 16:14:18,190 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:14:18,190 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:14:18,190 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-12-13 16:14:18,191 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 105 states, 104 states have (on average 1.3846153846153846) internal successors, (144), 104 states have internal predecessors, (144), 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) [2022-12-13 16:14:18,196 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 66 [2022-12-13 16:14:18,196 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 16:14:18,196 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 16:14:18,196 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:14:18,196 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:14:18,202 INFO L748 eck$LassoCheckResult]: Stem: 30#$Ultimate##0true 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);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 37#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret43#1, main_~retValue_acc~8#1, main_~tmp~6#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 24#select_helpers_returnLabel#1true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 92#select_features_returnLabel#1true 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; 80#valid_product_returnLabel#1true main_#t~ret43#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret43#1;havoc main_#t~ret43#1; 20#L775true assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 64#setup_returnLabel#1true assume { :end_inline_setup } true;assume { :begin_inline_runTest } 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; 94#L600-2true [2022-12-13 16:14:18,202 INFO L750 eck$LassoCheckResult]: Loop: 94#L600-2true assume !false; 52#L601true assume test_~splverifierCounter~0#1 < 4; 11#L602true test_~tmp~5#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 46#L610true assume !(0 != test_~tmp~5#1); 47#L610-2true test_~tmp___0~1#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 48#L620true assume !(0 != test_~tmp___0~1#1); 32#L620-2true test_~tmp___2~0#1 := test_#t~nondet40#1;havoc test_#t~nondet40#1; 72#L630true assume 0 != test_~tmp___2~0#1; 89#L636-2true assume { :begin_inline_timeShift } true; 28#L442true assume !(0 != ~pumpRunning~0); 86#L442-2true assume !(0 != ~systemActive~0); 83#L449-1true assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret44#1, __utac_acc__Specification1_spec__1_#t~ret45#1, __utac_acc__Specification1_spec__1_~tmp~7#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification1_spec__1_~tmp~7#1;havoc __utac_acc__Specification1_spec__1_~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; 100#isMethaneLevelCritical_returnLabel#1true __utac_acc__Specification1_spec__1_#t~ret44#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~7#1 := __utac_acc__Specification1_spec__1_#t~ret44#1;havoc __utac_acc__Specification1_spec__1_#t~ret44#1; 76#L797true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~7#1); 75#L797-1true assume { :end_inline___utac_acc__Specification1_spec__1 } true; 57#timeShift_returnLabel#1true assume { :end_inline_timeShift } true; 94#L600-2true [2022-12-13 16:14:18,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:14:18,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-12-13 16:14:18,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:14:18,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604486302] [2022-12-13 16:14:18,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:14:18,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:14:18,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:14:18,301 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 16:14:18,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:14:18,331 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 16:14:18,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:14:18,333 INFO L85 PathProgramCache]: Analyzing trace with hash -680968892, now seen corresponding path program 1 times [2022-12-13 16:14:18,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:14:18,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969426875] [2022-12-13 16:14:18,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:14:18,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:14:18,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:14:18,340 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 16:14:18,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:14:18,348 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 16:14:18,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:14:18,349 INFO L85 PathProgramCache]: Analyzing trace with hash 674450184, now seen corresponding path program 1 times [2022-12-13 16:14:18,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:14:18,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96042036] [2022-12-13 16:14:18,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:14:18,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:14:18,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:14:18,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:14:18,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:14:18,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96042036] [2022-12-13 16:14:18,486 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96042036] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:14:18,486 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:14:18,486 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 16:14:18,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196611596] [2022-12-13 16:14:18,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:14:18,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:14:18,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 16:14:18,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 16:14:18,612 INFO L87 Difference]: Start difference. First operand has 105 states, 104 states have (on average 1.3846153846153846) internal successors, (144), 104 states have internal predecessors, (144), 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 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 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) [2022-12-13 16:14:18,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:14:18,662 INFO L93 Difference]: Finished difference Result 102 states and 130 transitions. [2022-12-13 16:14:18,663 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 102 states and 130 transitions. [2022-12-13 16:14:18,666 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 62 [2022-12-13 16:14:18,670 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 102 states to 92 states and 120 transitions. [2022-12-13 16:14:18,671 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 92 [2022-12-13 16:14:18,672 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 92 [2022-12-13 16:14:18,672 INFO L73 IsDeterministic]: Start isDeterministic. Operand 92 states and 120 transitions. [2022-12-13 16:14:18,673 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:14:18,673 INFO L218 hiAutomatonCegarLoop]: Abstraction has 92 states and 120 transitions. [2022-12-13 16:14:18,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states and 120 transitions. [2022-12-13 16:14:18,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2022-12-13 16:14:18,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 92 states have (on average 1.3043478260869565) internal successors, (120), 91 states have internal predecessors, (120), 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) [2022-12-13 16:14:18,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 120 transitions. [2022-12-13 16:14:18,698 INFO L240 hiAutomatonCegarLoop]: Abstraction has 92 states and 120 transitions. [2022-12-13 16:14:18,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 16:14:18,702 INFO L428 stractBuchiCegarLoop]: Abstraction has 92 states and 120 transitions. [2022-12-13 16:14:18,702 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-12-13 16:14:18,702 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 92 states and 120 transitions. [2022-12-13 16:14:18,704 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 62 [2022-12-13 16:14:18,704 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 16:14:18,704 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 16:14:18,704 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:14:18,704 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:14:18,705 INFO L748 eck$LassoCheckResult]: Stem: 293#$Ultimate##0 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);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 294#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret43#1, main_~retValue_acc~8#1, main_~tmp~6#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 279#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 280#select_features_returnLabel#1 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; 277#valid_product_returnLabel#1 main_#t~ret43#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret43#1;havoc main_#t~ret43#1; 274#L775 assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 227#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } 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; 228#L600-2 [2022-12-13 16:14:18,705 INFO L750 eck$LassoCheckResult]: Loop: 228#L600-2 assume !false; 306#L601 assume test_~splverifierCounter~0#1 < 4; 247#L602 test_~tmp~5#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 248#L610 assume !(0 != test_~tmp~5#1); 312#L610-2 test_~tmp___0~1#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 314#L620 assume !(0 != test_~tmp___0~1#1); 282#L620-2 test_~tmp___2~0#1 := test_#t~nondet40#1;havoc test_#t~nondet40#1; 258#L630 assume 0 != test_~tmp___2~0#1; 260#L636-2 assume { :begin_inline_timeShift } true; 283#L442 assume !(0 != ~pumpRunning~0); 284#L442-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret27#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 296#L474 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 233#processEnvironment__wrappee__base_returnLabel#2 assume { :end_inline_processEnvironment__wrappee__base } true; 230#L474-1 assume { :end_inline_processEnvironment } true; 255#L449-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret44#1, __utac_acc__Specification1_spec__1_#t~ret45#1, __utac_acc__Specification1_spec__1_~tmp~7#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification1_spec__1_~tmp~7#1;havoc __utac_acc__Specification1_spec__1_~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; 286#isMethaneLevelCritical_returnLabel#1 __utac_acc__Specification1_spec__1_#t~ret44#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~7#1 := __utac_acc__Specification1_spec__1_#t~ret44#1;havoc __utac_acc__Specification1_spec__1_#t~ret44#1; 270#L797 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~7#1); 264#L797-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 265#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 228#L600-2 [2022-12-13 16:14:18,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:14:18,706 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-12-13 16:14:18,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:14:18,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696503823] [2022-12-13 16:14:18,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:14:18,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:14:18,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:14:18,716 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 16:14:18,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:14:18,726 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 16:14:18,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:14:18,726 INFO L85 PathProgramCache]: Analyzing trace with hash -232248349, now seen corresponding path program 1 times [2022-12-13 16:14:18,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:14:18,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885887304] [2022-12-13 16:14:18,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:14:18,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:14:18,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:14:18,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:14:18,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:14:18,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885887304] [2022-12-13 16:14:18,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885887304] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:14:18,748 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:14:18,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 16:14:18,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435658818] [2022-12-13 16:14:18,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:14:18,749 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-12-13 16:14:18,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:14:18,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 16:14:18,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 16:14:18,750 INFO L87 Difference]: Start difference. First operand 92 states and 120 transitions. cyclomatic complexity: 30 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) [2022-12-13 16:14:18,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:14:18,785 INFO L93 Difference]: Finished difference Result 144 states and 182 transitions. [2022-12-13 16:14:18,785 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 144 states and 182 transitions. [2022-12-13 16:14:18,788 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 102 [2022-12-13 16:14:18,789 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 144 states to 144 states and 182 transitions. [2022-12-13 16:14:18,789 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 144 [2022-12-13 16:14:18,789 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 144 [2022-12-13 16:14:18,789 INFO L73 IsDeterministic]: Start isDeterministic. Operand 144 states and 182 transitions. [2022-12-13 16:14:18,790 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:14:18,790 INFO L218 hiAutomatonCegarLoop]: Abstraction has 144 states and 182 transitions. [2022-12-13 16:14:18,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states and 182 transitions. [2022-12-13 16:14:18,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2022-12-13 16:14:18,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 144 states have (on average 1.2638888888888888) internal successors, (182), 143 states have internal predecessors, (182), 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) [2022-12-13 16:14:18,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 182 transitions. [2022-12-13 16:14:18,798 INFO L240 hiAutomatonCegarLoop]: Abstraction has 144 states and 182 transitions. [2022-12-13 16:14:18,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 16:14:18,800 INFO L428 stractBuchiCegarLoop]: Abstraction has 144 states and 182 transitions. [2022-12-13 16:14:18,800 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-12-13 16:14:18,800 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 144 states and 182 transitions. [2022-12-13 16:14:18,801 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 102 [2022-12-13 16:14:18,801 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 16:14:18,801 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 16:14:18,802 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:14:18,802 INFO L149 hiAutomatonCegarLoop]: 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] [2022-12-13 16:14:18,802 INFO L748 eck$LassoCheckResult]: Stem: 533#$Ultimate##0 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);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 534#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret43#1, main_~retValue_acc~8#1, main_~tmp~6#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 523#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 524#select_features_returnLabel#1 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; 521#valid_product_returnLabel#1 main_#t~ret43#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret43#1;havoc main_#t~ret43#1; 517#L775 assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 469#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } 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#L600-2 [2022-12-13 16:14:18,803 INFO L750 eck$LassoCheckResult]: Loop: 470#L600-2 assume !false; 549#L601 assume test_~splverifierCounter~0#1 < 4; 490#L602 test_~tmp~5#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 491#L610 assume !(0 != test_~tmp~5#1); 556#L610-2 test_~tmp___0~1#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 558#L620 assume !(0 != test_~tmp___0~1#1); 526#L620-2 test_~tmp___2~0#1 := test_#t~nondet40#1;havoc test_#t~nondet40#1; 501#L630 assume 0 != test_~tmp___2~0#1; 503#L636-2 assume { :begin_inline_timeShift } true; 527#L442 assume !(0 != ~pumpRunning~0); 528#L442-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret27#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 538#L474 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; 552#L899 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~11#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~11#1; 504#isHighWaterSensorDry_returnLabel#1 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; 505#L576 assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~0#1 := 0; 518#L576-2 isHighWaterLevel_~retValue_acc~5#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~5#1; 541#isHighWaterLevel_returnLabel#1 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; 542#L478 assume !(0 != processEnvironment_~tmp~3#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 488#processEnvironment__wrappee__base_returnLabel#1 assume { :end_inline_processEnvironment__wrappee__base } true; 489#L474-1 assume { :end_inline_processEnvironment } true; 498#L449-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret44#1, __utac_acc__Specification1_spec__1_#t~ret45#1, __utac_acc__Specification1_spec__1_~tmp~7#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification1_spec__1_~tmp~7#1;havoc __utac_acc__Specification1_spec__1_~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; 529#isMethaneLevelCritical_returnLabel#1 __utac_acc__Specification1_spec__1_#t~ret44#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~7#1 := __utac_acc__Specification1_spec__1_#t~ret44#1;havoc __utac_acc__Specification1_spec__1_#t~ret44#1; 513#L797 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~7#1); 507#L797-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 508#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 470#L600-2 [2022-12-13 16:14:18,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:14:18,803 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-12-13 16:14:18,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:14:18,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816607844] [2022-12-13 16:14:18,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:14:18,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:14:18,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:14:18,811 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 16:14:18,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:14:18,820 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 16:14:18,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:14:18,821 INFO L85 PathProgramCache]: Analyzing trace with hash -1748467795, now seen corresponding path program 1 times [2022-12-13 16:14:18,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:14:18,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811347507] [2022-12-13 16:14:18,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:14:18,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:14:18,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:14:18,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:14:18,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:14:18,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811347507] [2022-12-13 16:14:18,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811347507] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:14:18,867 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:14:18,867 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 16:14:18,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120033941] [2022-12-13 16:14:18,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:14:18,868 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-12-13 16:14:18,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:14:18,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 16:14:18,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 16:14:18,869 INFO L87 Difference]: Start difference. First operand 144 states and 182 transitions. cyclomatic complexity: 40 Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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) [2022-12-13 16:14:18,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:14:18,916 INFO L93 Difference]: Finished difference Result 406 states and 508 transitions. [2022-12-13 16:14:18,917 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 406 states and 508 transitions. [2022-12-13 16:14:18,920 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 298 [2022-12-13 16:14:18,924 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 406 states to 406 states and 508 transitions. [2022-12-13 16:14:18,924 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 406 [2022-12-13 16:14:18,925 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 406 [2022-12-13 16:14:18,925 INFO L73 IsDeterministic]: Start isDeterministic. Operand 406 states and 508 transitions. [2022-12-13 16:14:18,926 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:14:18,926 INFO L218 hiAutomatonCegarLoop]: Abstraction has 406 states and 508 transitions. [2022-12-13 16:14:18,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states and 508 transitions. [2022-12-13 16:14:18,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 150. [2022-12-13 16:14:18,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 150 states have (on average 1.2533333333333334) internal successors, (188), 149 states have internal predecessors, (188), 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) [2022-12-13 16:14:18,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 188 transitions. [2022-12-13 16:14:18,936 INFO L240 hiAutomatonCegarLoop]: Abstraction has 150 states and 188 transitions. [2022-12-13 16:14:18,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 16:14:18,937 INFO L428 stractBuchiCegarLoop]: Abstraction has 150 states and 188 transitions. [2022-12-13 16:14:18,937 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-12-13 16:14:18,938 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 150 states and 188 transitions. [2022-12-13 16:14:18,939 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 106 [2022-12-13 16:14:18,939 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 16:14:18,939 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 16:14:18,939 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:14:18,939 INFO L149 hiAutomatonCegarLoop]: 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] [2022-12-13 16:14:18,940 INFO L748 eck$LassoCheckResult]: Stem: 1094#$Ultimate##0 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);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 1095#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret43#1, main_~retValue_acc~8#1, main_~tmp~6#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 1083#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1084#select_features_returnLabel#1 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; 1081#valid_product_returnLabel#1 main_#t~ret43#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret43#1;havoc main_#t~ret43#1; 1077#L775 assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 1029#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } 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; 1030#L600-2 [2022-12-13 16:14:18,940 INFO L750 eck$LassoCheckResult]: Loop: 1030#L600-2 assume !false; 1112#L601 assume test_~splverifierCounter~0#1 < 4; 1050#L602 test_~tmp~5#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 1051#L610 assume !(0 != test_~tmp~5#1); 1121#L610-2 test_~tmp___0~1#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 1123#L620 assume !(0 != test_~tmp___0~1#1); 1086#L620-2 test_~tmp___2~0#1 := test_#t~nondet40#1;havoc test_#t~nondet40#1; 1061#L630 assume 0 != test_~tmp___2~0#1; 1063#L636-2 assume { :begin_inline_timeShift } true; 1087#L442 assume !(0 != ~pumpRunning~0); 1088#L442-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret27#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 1100#L474 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; 1115#L899 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~11#1; 1064#isHighWaterSensorDry_returnLabel#1 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; 1065#L576 assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~0#1 := 0; 1079#L576-2 isHighWaterLevel_~retValue_acc~5#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~5#1; 1103#isHighWaterLevel_returnLabel#1 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; 1104#L478 assume !(0 != processEnvironment_~tmp~3#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1048#processEnvironment__wrappee__base_returnLabel#1 assume { :end_inline_processEnvironment__wrappee__base } true; 1049#L474-1 assume { :end_inline_processEnvironment } true; 1058#L449-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret44#1, __utac_acc__Specification1_spec__1_#t~ret45#1, __utac_acc__Specification1_spec__1_~tmp~7#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification1_spec__1_~tmp~7#1;havoc __utac_acc__Specification1_spec__1_~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; 1090#isMethaneLevelCritical_returnLabel#1 __utac_acc__Specification1_spec__1_#t~ret44#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~7#1 := __utac_acc__Specification1_spec__1_#t~ret44#1;havoc __utac_acc__Specification1_spec__1_#t~ret44#1; 1073#L797 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~7#1); 1067#L797-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 1068#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1030#L600-2 [2022-12-13 16:14:18,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:14:18,940 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2022-12-13 16:14:18,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:14:18,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580627880] [2022-12-13 16:14:18,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:14:18,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:14:18,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:14:18,948 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 16:14:18,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:14:18,956 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 16:14:18,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:14:18,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1161661781, now seen corresponding path program 1 times [2022-12-13 16:14:18,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:14:18,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736252762] [2022-12-13 16:14:18,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:14:18,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:14:18,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:14:18,965 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 16:14:18,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:14:18,972 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 16:14:18,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:14:18,973 INFO L85 PathProgramCache]: Analyzing trace with hash 1882300775, now seen corresponding path program 1 times [2022-12-13 16:14:18,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:14:18,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805179752] [2022-12-13 16:14:18,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:14:18,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:14:18,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:14:18,983 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 16:14:18,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:14:18,995 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 16:14:19,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:14:19,722 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 16:14:19,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:14:19,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.12 04:14:19 BoogieIcfgContainer [2022-12-13 16:14:19,759 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-12-13 16:14:19,760 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 16:14:19,760 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 16:14:19,760 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 16:14:19,760 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:14:18" (3/4) ... [2022-12-13 16:14:19,762 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-12-13 16:14:19,796 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d02db8d-a296-4693-9554-79317c82e1de/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 16:14:19,797 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 16:14:19,797 INFO L158 Benchmark]: Toolchain (without parser) took 2349.14ms. Allocated memory was 121.6MB in the beginning and 151.0MB in the end (delta: 29.4MB). Free memory was 83.9MB in the beginning and 81.7MB in the end (delta: 2.3MB). Peak memory consumption was 32.5MB. Max. memory is 16.1GB. [2022-12-13 16:14:19,798 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 121.6MB. Free memory is still 94.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 16:14:19,798 INFO L158 Benchmark]: CACSL2BoogieTranslator took 271.57ms. Allocated memory is still 121.6MB. Free memory was 83.5MB in the beginning and 65.5MB in the end (delta: 18.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-13 16:14:19,798 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.83ms. Allocated memory is still 121.6MB. Free memory was 65.5MB in the beginning and 63.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 16:14:19,799 INFO L158 Benchmark]: Boogie Preprocessor took 20.70ms. Allocated memory is still 121.6MB. Free memory was 63.0MB in the beginning and 61.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 16:14:19,799 INFO L158 Benchmark]: RCFGBuilder took 341.32ms. Allocated memory was 121.6MB in the beginning and 151.0MB in the end (delta: 29.4MB). Free memory was 61.3MB in the beginning and 122.8MB in the end (delta: -61.5MB). Peak memory consumption was 26.1MB. Max. memory is 16.1GB. [2022-12-13 16:14:19,799 INFO L158 Benchmark]: BuchiAutomizer took 1643.16ms. Allocated memory is still 151.0MB. Free memory was 122.0MB in the beginning and 84.8MB in the end (delta: 37.1MB). Peak memory consumption was 37.8MB. Max. memory is 16.1GB. [2022-12-13 16:14:19,800 INFO L158 Benchmark]: Witness Printer took 37.04ms. Allocated memory is still 151.0MB. Free memory was 84.8MB in the beginning and 81.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 16:14:19,802 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 121.6MB. Free memory is still 94.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 271.57ms. Allocated memory is still 121.6MB. Free memory was 83.5MB in the beginning and 65.5MB in the end (delta: 18.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.83ms. Allocated memory is still 121.6MB. Free memory was 65.5MB in the beginning and 63.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.70ms. Allocated memory is still 121.6MB. Free memory was 63.0MB in the beginning and 61.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 341.32ms. Allocated memory was 121.6MB in the beginning and 151.0MB in the end (delta: 29.4MB). Free memory was 61.3MB in the beginning and 122.8MB in the end (delta: -61.5MB). Peak memory consumption was 26.1MB. Max. memory is 16.1GB. * BuchiAutomizer took 1643.16ms. Allocated memory is still 151.0MB. Free memory was 122.0MB in the beginning and 84.8MB in the end (delta: 37.1MB). Peak memory consumption was 37.8MB. Max. memory is 16.1GB. * Witness Printer took 37.04ms. Allocated memory is still 151.0MB. Free memory was 84.8MB in the beginning and 81.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. 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 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 150 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.5s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 1.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 256 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 722 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 722 mSDsluCounter, 862 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 377 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 61 IncrementalHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 485 mSDtfsCounter, 61 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 600]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L434] int pumpRunning = 0; [L435] int systemActive = 1; [L693] int cleanupTimeShifts = 4; [L816] int waterLevel = 1; [L817] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L766] int retValue_acc ; [L767] int tmp ; [L771] FCALL select_helpers() [L772] FCALL select_features() [L773] CALL, EXPR valid_product() [L684] int retValue_acc ; [L687] retValue_acc = 1 [L688] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L773] RET, EXPR valid_product() [L773] tmp = valid_product() [L775] COND TRUE \read(tmp) [L777] FCALL setup() [L778] CALL runTest() [L760] CALL test() [L591] int splverifierCounter ; [L592] int tmp ; [L593] int tmp___0 ; [L594] int tmp___1 ; [L595] int tmp___2 ; [L598] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L600] COND TRUE 1 [L602] COND TRUE splverifierCounter < 4 [L608] tmp = __VERIFIER_nondet_int() [L610] COND FALSE !(\read(tmp)) [L618] tmp___0 = __VERIFIER_nondet_int() [L620] COND FALSE !(\read(tmp___0)) [L628] tmp___2 = __VERIFIER_nondet_int() [L630] COND TRUE \read(tmp___2) [L643] CALL timeShift() [L442] COND FALSE !(\read(pumpRunning)) [L449] COND TRUE \read(systemActive) [L451] CALL processEnvironment() [L471] int tmp ; [L474] COND TRUE ! pumpRunning [L476] CALL, EXPR isHighWaterLevel() [L568] int retValue_acc ; [L569] int tmp ; [L570] int tmp___0 ; [L574] CALL, EXPR isHighWaterSensorDry() [L896] int retValue_acc ; [L899] COND TRUE waterLevel < 2 [L900] retValue_acc = 1 [L901] return (retValue_acc); [L574] RET, EXPR isHighWaterSensorDry() [L574] tmp = isHighWaterSensorDry() [L576] COND TRUE \read(tmp) [L577] tmp___0 = 0 [L581] retValue_acc = tmp___0 [L582] return (retValue_acc); [L476] RET, EXPR isHighWaterLevel() [L476] tmp = isHighWaterLevel() [L478] COND FALSE !(\read(tmp)) [L484] FCALL processEnvironment__wrappee__base() [L451] RET processEnvironment() [L457] CALL __utac_acc__Specification1_spec__1() [L790] int tmp ; [L791] int tmp___0 ; [L795] CALL, EXPR isMethaneLevelCritical() [L855] int retValue_acc ; [L858] retValue_acc = methaneLevelCritical [L859] return (retValue_acc); [L795] RET, EXPR isMethaneLevelCritical() [L795] tmp = isMethaneLevelCritical() [L797] COND FALSE !(\read(tmp)) [L457] RET __utac_acc__Specification1_spec__1() [L643] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 600]: 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; [L434] int pumpRunning = 0; [L435] int systemActive = 1; [L693] int cleanupTimeShifts = 4; [L816] int waterLevel = 1; [L817] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L766] int retValue_acc ; [L767] int tmp ; [L771] FCALL select_helpers() [L772] FCALL select_features() [L773] CALL, EXPR valid_product() [L684] int retValue_acc ; [L687] retValue_acc = 1 [L688] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L773] RET, EXPR valid_product() [L773] tmp = valid_product() [L775] COND TRUE \read(tmp) [L777] FCALL setup() [L778] CALL runTest() [L760] CALL test() [L591] int splverifierCounter ; [L592] int tmp ; [L593] int tmp___0 ; [L594] int tmp___1 ; [L595] int tmp___2 ; [L598] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L600] COND TRUE 1 [L602] COND TRUE splverifierCounter < 4 [L608] tmp = __VERIFIER_nondet_int() [L610] COND FALSE !(\read(tmp)) [L618] tmp___0 = __VERIFIER_nondet_int() [L620] COND FALSE !(\read(tmp___0)) [L628] tmp___2 = __VERIFIER_nondet_int() [L630] COND TRUE \read(tmp___2) [L643] CALL timeShift() [L442] COND FALSE !(\read(pumpRunning)) [L449] COND TRUE \read(systemActive) [L451] CALL processEnvironment() [L471] int tmp ; [L474] COND TRUE ! pumpRunning [L476] CALL, EXPR isHighWaterLevel() [L568] int retValue_acc ; [L569] int tmp ; [L570] int tmp___0 ; [L574] CALL, EXPR isHighWaterSensorDry() [L896] int retValue_acc ; [L899] COND TRUE waterLevel < 2 [L900] retValue_acc = 1 [L901] return (retValue_acc); [L574] RET, EXPR isHighWaterSensorDry() [L574] tmp = isHighWaterSensorDry() [L576] COND TRUE \read(tmp) [L577] tmp___0 = 0 [L581] retValue_acc = tmp___0 [L582] return (retValue_acc); [L476] RET, EXPR isHighWaterLevel() [L476] tmp = isHighWaterLevel() [L478] COND FALSE !(\read(tmp)) [L484] FCALL processEnvironment__wrappee__base() [L451] RET processEnvironment() [L457] CALL __utac_acc__Specification1_spec__1() [L790] int tmp ; [L791] int tmp___0 ; [L795] CALL, EXPR isMethaneLevelCritical() [L855] int retValue_acc ; [L858] retValue_acc = methaneLevelCritical [L859] return (retValue_acc); [L795] RET, EXPR isMethaneLevelCritical() [L795] tmp = isMethaneLevelCritical() [L797] COND FALSE !(\read(tmp)) [L457] RET __utac_acc__Specification1_spec__1() [L643] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-12-13 16:14:19,831 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d02db8d-a296-4693-9554-79317c82e1de/bin/uautomizer-uyxdKDjOR8/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)