./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product53.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0e0057cc 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_be25e669-4f7f-47cc-b0c9-e43361296f95/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be25e669-4f7f-47cc-b0c9-e43361296f95/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be25e669-4f7f-47cc-b0c9-e43361296f95/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be25e669-4f7f-47cc-b0c9-e43361296f95/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product53.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be25e669-4f7f-47cc-b0c9-e43361296f95/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be25e669-4f7f-47cc-b0c9-e43361296f95/bin/uautomizer-verify-VRDe98Ueme --witnessprinter.witness.filename witness --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 55ce316e71b3537e039a3a4d2127e4eace2c49bce87df09105114bd008c08800 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 10:42:11,532 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 10:42:11,660 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be25e669-4f7f-47cc-b0c9-e43361296f95/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-26 10:42:11,668 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 10:42:11,669 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 10:42:11,715 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 10:42:11,717 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 10:42:11,718 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 10:42:11,719 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 10:42:11,724 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 10:42:11,725 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 10:42:11,725 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 10:42:11,726 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 10:42:11,727 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-26 10:42:11,728 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-26 10:42:11,729 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-26 10:42:11,729 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-26 10:42:11,729 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-26 10:42:11,730 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-26 10:42:11,730 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 10:42:11,731 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-26 10:42:11,731 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 10:42:11,732 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 10:42:11,732 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 10:42:11,732 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 10:42:11,733 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-26 10:42:11,733 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-26 10:42:11,734 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-26 10:42:11,734 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 10:42:11,734 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 10:42:11,736 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 10:42:11,736 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-26 10:42:11,736 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 10:42:11,736 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 10:42:11,737 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 10:42:11,737 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 10:42:11,737 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 10:42:11,738 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-26 10:42:11,738 INFO L153 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_be25e669-4f7f-47cc-b0c9-e43361296f95/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be25e669-4f7f-47cc-b0c9-e43361296f95/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 55ce316e71b3537e039a3a4d2127e4eace2c49bce87df09105114bd008c08800 [2023-11-26 10:42:12,012 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 10:42:12,035 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 10:42:12,038 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 10:42:12,039 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 10:42:12,040 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 10:42:12,041 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be25e669-4f7f-47cc-b0c9-e43361296f95/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/product-lines/minepump_spec1_product53.cil.c [2023-11-26 10:42:15,159 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 10:42:15,493 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 10:42:15,493 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be25e669-4f7f-47cc-b0c9-e43361296f95/sv-benchmarks/c/product-lines/minepump_spec1_product53.cil.c [2023-11-26 10:42:15,518 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be25e669-4f7f-47cc-b0c9-e43361296f95/bin/uautomizer-verify-VRDe98Ueme/data/40d87a8a4/4d7ab5192a8b43f88154fb4cf127e3eb/FLAGe184decbd [2023-11-26 10:42:15,540 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be25e669-4f7f-47cc-b0c9-e43361296f95/bin/uautomizer-verify-VRDe98Ueme/data/40d87a8a4/4d7ab5192a8b43f88154fb4cf127e3eb [2023-11-26 10:42:15,546 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 10:42:15,549 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 10:42:15,553 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 10:42:15,553 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 10:42:15,559 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 10:42:15,559 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:42:15" (1/1) ... [2023-11-26 10:42:15,561 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@273f6210 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:15, skipping insertion in model container [2023-11-26 10:42:15,561 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:42:15" (1/1) ... [2023-11-26 10:42:15,636 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 10:42:15,921 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:42:15,951 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 10:42:15,962 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [49] [2023-11-26 10:42:15,964 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [78] [2023-11-26 10:42:15,964 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [87] [2023-11-26 10:42:15,965 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [453] [2023-11-26 10:42:15,965 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [557] [2023-11-26 10:42:15,965 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [786] [2023-11-26 10:42:15,965 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [851] [2023-11-26 10:42:15,966 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [886] [2023-11-26 10:42:16,041 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:42:16,063 INFO L206 MainTranslator]: Completed translation [2023-11-26 10:42:16,064 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:16 WrapperNode [2023-11-26 10:42:16,064 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 10:42:16,067 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 10:42:16,067 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 10:42:16,068 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 10:42:16,076 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:16" (1/1) ... [2023-11-26 10:42:16,092 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:16" (1/1) ... [2023-11-26 10:42:16,149 INFO L138 Inliner]: procedures = 56, calls = 103, calls flagged for inlining = 56, calls inlined = 140, statements flattened = 951 [2023-11-26 10:42:16,149 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 10:42:16,150 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 10:42:16,150 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 10:42:16,151 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 10:42:16,172 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:16" (1/1) ... [2023-11-26 10:42:16,172 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:16" (1/1) ... [2023-11-26 10:42:16,181 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:16" (1/1) ... [2023-11-26 10:42:16,232 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-26 10:42:16,233 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:16" (1/1) ... [2023-11-26 10:42:16,233 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:16" (1/1) ... [2023-11-26 10:42:16,269 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:16" (1/1) ... [2023-11-26 10:42:16,278 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:16" (1/1) ... [2023-11-26 10:42:16,294 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:16" (1/1) ... [2023-11-26 10:42:16,298 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:16" (1/1) ... [2023-11-26 10:42:16,305 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 10:42:16,320 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 10:42:16,320 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 10:42:16,321 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 10:42:16,322 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:16" (1/1) ... [2023-11-26 10:42:16,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:42:16,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be25e669-4f7f-47cc-b0c9-e43361296f95/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:42:16,368 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be25e669-4f7f-47cc-b0c9-e43361296f95/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:42:16,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be25e669-4f7f-47cc-b0c9-e43361296f95/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-26 10:42:16,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 10:42:16,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 10:42:16,402 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 10:42:16,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 10:42:16,487 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 10:42:16,489 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 10:42:17,258 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 10:42:17,276 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 10:42:17,276 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-26 10:42:17,278 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:42:17 BoogieIcfgContainer [2023-11-26 10:42:17,279 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 10:42:17,280 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-26 10:42:17,280 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-26 10:42:17,284 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-26 10:42:17,285 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-26 10:42:17,285 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 26.11 10:42:15" (1/3) ... [2023-11-26 10:42:17,286 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7c9827a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.11 10:42:17, skipping insertion in model container [2023-11-26 10:42:17,287 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-26 10:42:17,287 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:16" (2/3) ... [2023-11-26 10:42:17,287 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7c9827a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.11 10:42:17, skipping insertion in model container [2023-11-26 10:42:17,288 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-26 10:42:17,288 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:42:17" (3/3) ... [2023-11-26 10:42:17,289 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product53.cil.c [2023-11-26 10:42:17,356 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-26 10:42:17,357 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-26 10:42:17,357 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-26 10:42:17,357 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-26 10:42:17,358 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-26 10:42:17,358 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-26 10:42:17,358 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-26 10:42:17,358 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-26 10:42:17,364 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 273 states, 272 states have (on average 1.3676470588235294) internal successors, (372), 272 states have internal predecessors, (372), 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) [2023-11-26 10:42:17,401 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 178 [2023-11-26 10:42:17,402 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 10:42:17,402 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 10:42:17,409 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:42:17,410 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:42:17,410 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-26 10:42:17,412 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 273 states, 272 states have (on average 1.3676470588235294) internal successors, (372), 272 states have internal predecessors, (372), 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) [2023-11-26 10:42:17,429 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 178 [2023-11-26 10:42:17,429 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 10:42:17,430 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 10:42:17,431 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:42:17,431 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:42:17,436 INFO L748 eck$LassoCheckResult]: Stem: 173#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(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;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 184#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret29#1, main_~retValue_acc~3#1, main_~tmp~4#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; 26#select_helpers_returnLabel#1true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 247#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~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; 99#valid_product_returnLabel#1true main_#t~ret29#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret29#1;havoc main_#t~ret29#1; 114#L544true assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 77#setup_returnLabel#1true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet44#1, test_#t~nondet45#1, test_#t~nondet46#1, test_#t~nondet47#1, test_~splverifierCounter~0#1, test_~tmp~10#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~10#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 31#L797-2true [2023-11-26 10:42:17,437 INFO L750 eck$LassoCheckResult]: Loop: 31#L797-2true assume !false; 186#L798true assume test_~splverifierCounter~0#1 < 4; 133#L799true havoc test_#t~nondet44#1;test_~tmp~10#1 := test_#t~nondet44#1;havoc test_#t~nondet44#1; 154#L807true assume !(0 != test_~tmp~10#1); 217#L807-2true havoc test_#t~nondet45#1;test_~tmp___0~3#1 := test_#t~nondet45#1;havoc test_#t~nondet45#1; 65#L817true assume !(0 != test_~tmp___0~3#1); 157#L817-2true havoc test_#t~nondet46#1;test_~tmp___2~0#1 := test_#t~nondet46#1;havoc test_#t~nondet46#1; 141#L827true assume 0 != test_~tmp___2~0#1; 198#L833-2true assume { :begin_inline_timeShift } true; 130#L571true assume !(0 != ~pumpRunning~0); 178#L571-2true assume !(0 != ~systemActive~0); 188#L578-1true assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret4#1, __utac_acc__Specification1_spec__1_#t~ret5#1, __utac_acc__Specification1_spec__1_~tmp~0#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~0#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;isMethaneLevelCritical_~retValue_acc~10#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~10#1; 213#isMethaneLevelCritical_returnLabel#2true __utac_acc__Specification1_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~0#1 := __utac_acc__Specification1_spec__1_#t~ret4#1;havoc __utac_acc__Specification1_spec__1_#t~ret4#1; 79#L61true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0#1); 121#L61-1true havoc __utac_acc__Specification1_spec__1_#t~ret4#1, __utac_acc__Specification1_spec__1_#t~ret5#1, __utac_acc__Specification1_spec__1_~tmp~0#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification1_spec__1 } true; 205#timeShift_returnLabel#1true assume { :end_inline_timeShift } true; 31#L797-2true [2023-11-26 10:42:17,444 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:17,444 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2023-11-26 10:42:17,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:17,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563613383] [2023-11-26 10:42:17,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:17,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:17,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:42:17,562 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:42:17,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:42:17,602 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:42:17,605 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:17,605 INFO L85 PathProgramCache]: Analyzing trace with hash 408254790, now seen corresponding path program 1 times [2023-11-26 10:42:17,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:17,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084477933] [2023-11-26 10:42:17,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:17,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:17,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:42:17,616 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:42:17,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:42:17,630 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:42:17,635 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:17,635 INFO L85 PathProgramCache]: Analyzing trace with hash 1763673866, now seen corresponding path program 1 times [2023-11-26 10:42:17,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:17,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801592030] [2023-11-26 10:42:17,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:17,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:17,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:17,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:42:17,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:42:17,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801592030] [2023-11-26 10:42:17,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801592030] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:42:17,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:42:17,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 10:42:17,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583307715] [2023-11-26 10:42:17,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:42:18,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:42:18,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 10:42:18,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-26 10:42:18,089 INFO L87 Difference]: Start difference. First operand has 273 states, 272 states have (on average 1.3676470588235294) internal successors, (372), 272 states have internal predecessors, (372), 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) [2023-11-26 10:42:18,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:42:18,212 INFO L93 Difference]: Finished difference Result 267 states and 355 transitions. [2023-11-26 10:42:18,213 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 267 states and 355 transitions. [2023-11-26 10:42:18,228 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 172 [2023-11-26 10:42:18,241 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 267 states to 257 states and 345 transitions. [2023-11-26 10:42:18,243 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 257 [2023-11-26 10:42:18,245 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 257 [2023-11-26 10:42:18,246 INFO L73 IsDeterministic]: Start isDeterministic. Operand 257 states and 345 transitions. [2023-11-26 10:42:18,252 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:42:18,253 INFO L218 hiAutomatonCegarLoop]: Abstraction has 257 states and 345 transitions. [2023-11-26 10:42:18,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states and 345 transitions. [2023-11-26 10:42:18,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 257. [2023-11-26 10:42:18,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 257 states have (on average 1.3424124513618676) internal successors, (345), 256 states have internal predecessors, (345), 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) [2023-11-26 10:42:18,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 345 transitions. [2023-11-26 10:42:18,346 INFO L240 hiAutomatonCegarLoop]: Abstraction has 257 states and 345 transitions. [2023-11-26 10:42:18,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 10:42:18,351 INFO L428 stractBuchiCegarLoop]: Abstraction has 257 states and 345 transitions. [2023-11-26 10:42:18,352 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-26 10:42:18,352 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 257 states and 345 transitions. [2023-11-26 10:42:18,354 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 172 [2023-11-26 10:42:18,355 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 10:42:18,355 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 10:42:18,356 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:42:18,356 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] [2023-11-26 10:42:18,356 INFO L748 eck$LassoCheckResult]: Stem: 789#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(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;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 790#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret29#1, main_~retValue_acc~3#1, main_~tmp~4#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; 601#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 602#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~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; 713#valid_product_returnLabel#1 main_#t~ret29#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret29#1;havoc main_#t~ret29#1; 714#L544 assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 683#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet44#1, test_#t~nondet45#1, test_#t~nondet46#1, test_#t~nondet47#1, test_~splverifierCounter~0#1, test_~tmp~10#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~10#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 607#L797-2 [2023-11-26 10:42:18,357 INFO L750 eck$LassoCheckResult]: Loop: 607#L797-2 assume !false; 608#L798 assume test_~splverifierCounter~0#1 < 4; 750#L799 havoc test_#t~nondet44#1;test_~tmp~10#1 := test_#t~nondet44#1;havoc test_#t~nondet44#1; 751#L807 assume !(0 != test_~tmp~10#1); 771#L807-2 havoc test_#t~nondet45#1;test_~tmp___0~3#1 := test_#t~nondet45#1;havoc test_#t~nondet45#1; 669#L817 assume !(0 != test_~tmp___0~3#1); 604#L817-2 havoc test_#t~nondet46#1;test_~tmp___2~0#1 := test_#t~nondet46#1;havoc test_#t~nondet46#1; 760#L827 assume 0 != test_~tmp___2~0#1; 648#L833-2 assume { :begin_inline_timeShift } true; 746#L571 assume !(0 != ~pumpRunning~0); 747#L571-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret32#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; 620#L655 assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret33#1, isMethaneAlarm_~retValue_acc~4#1;havoc isMethaneAlarm_~retValue_acc~4#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;isMethaneLevelCritical_~retValue_acc~10#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~10#1; 621#isMethaneLevelCritical_returnLabel#1 isMethaneAlarm_#t~ret33#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~4#1 := isMethaneAlarm_#t~ret33#1;havoc isMethaneAlarm_#t~ret33#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~4#1; 814#isMethaneAlarm_returnLabel#1 processEnvironment_#t~ret32#1 := isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret33#1, isMethaneAlarm_~retValue_acc~4#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~7#1 := processEnvironment_#t~ret32#1;havoc processEnvironment_#t~ret32#1; 786#L659 assume 0 != processEnvironment_~tmp~7#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; 787#deactivatePump_returnLabel#1 assume { :end_inline_deactivatePump } true; 597#L655-1 havoc processEnvironment_#t~ret32#1, processEnvironment_~tmp~7#1;assume { :end_inline_processEnvironment } true; 795#L578-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret4#1, __utac_acc__Specification1_spec__1_#t~ret5#1, __utac_acc__Specification1_spec__1_~tmp~0#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~0#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;isMethaneLevelCritical_~retValue_acc~10#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~10#1; 796#isMethaneLevelCritical_returnLabel#2 __utac_acc__Specification1_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~0#1 := __utac_acc__Specification1_spec__1_#t~ret4#1;havoc __utac_acc__Specification1_spec__1_#t~ret4#1; 684#L61 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0#1); 686#L61-1 havoc __utac_acc__Specification1_spec__1_#t~ret4#1, __utac_acc__Specification1_spec__1_#t~ret5#1, __utac_acc__Specification1_spec__1_~tmp~0#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification1_spec__1 } true; 738#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 607#L797-2 [2023-11-26 10:42:18,358 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:18,358 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2023-11-26 10:42:18,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:18,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944630224] [2023-11-26 10:42:18,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:18,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:18,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:42:18,407 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:42:18,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:42:18,417 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:42:18,418 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:18,418 INFO L85 PathProgramCache]: Analyzing trace with hash -49319729, now seen corresponding path program 1 times [2023-11-26 10:42:18,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:18,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624481343] [2023-11-26 10:42:18,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:18,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:18,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:18,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:42:18,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:42:18,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624481343] [2023-11-26 10:42:18,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624481343] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:42:18,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:42:18,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 10:42:18,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241230723] [2023-11-26 10:42:18,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:42:18,472 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-26 10:42:18,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:42:18,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:42:18,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:42:18,473 INFO L87 Difference]: Start difference. First operand 257 states and 345 transitions. cyclomatic complexity: 90 Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:42:18,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:42:18,611 INFO L93 Difference]: Finished difference Result 267 states and 338 transitions. [2023-11-26 10:42:18,612 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 267 states and 338 transitions. [2023-11-26 10:42:18,616 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 184 [2023-11-26 10:42:18,620 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 267 states to 267 states and 338 transitions. [2023-11-26 10:42:18,624 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 267 [2023-11-26 10:42:18,625 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 267 [2023-11-26 10:42:18,626 INFO L73 IsDeterministic]: Start isDeterministic. Operand 267 states and 338 transitions. [2023-11-26 10:42:18,628 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:42:18,628 INFO L218 hiAutomatonCegarLoop]: Abstraction has 267 states and 338 transitions. [2023-11-26 10:42:18,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states and 338 transitions. [2023-11-26 10:42:18,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 267. [2023-11-26 10:42:18,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 267 states have (on average 1.2659176029962547) internal successors, (338), 266 states have internal predecessors, (338), 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) [2023-11-26 10:42:18,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 338 transitions. [2023-11-26 10:42:18,660 INFO L240 hiAutomatonCegarLoop]: Abstraction has 267 states and 338 transitions. [2023-11-26 10:42:18,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:42:18,663 INFO L428 stractBuchiCegarLoop]: Abstraction has 267 states and 338 transitions. [2023-11-26 10:42:18,663 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-26 10:42:18,663 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 267 states and 338 transitions. [2023-11-26 10:42:18,665 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 184 [2023-11-26 10:42:18,666 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 10:42:18,666 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 10:42:18,667 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:42:18,667 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, 1, 1, 1, 1] [2023-11-26 10:42:18,668 INFO L748 eck$LassoCheckResult]: Stem: 1274#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(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;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 1275#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret29#1, main_~retValue_acc~3#1, main_~tmp~4#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; 1111#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1112#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~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; 1211#valid_product_returnLabel#1 main_#t~ret29#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret29#1;havoc main_#t~ret29#1; 1212#L544 assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 1183#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet44#1, test_#t~nondet45#1, test_#t~nondet46#1, test_#t~nondet47#1, test_~splverifierCounter~0#1, test_~tmp~10#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~10#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1117#L797-2 [2023-11-26 10:42:18,668 INFO L750 eck$LassoCheckResult]: Loop: 1117#L797-2 assume !false; 1118#L798 assume test_~splverifierCounter~0#1 < 4; 1245#L799 havoc test_#t~nondet44#1;test_~tmp~10#1 := test_#t~nondet44#1;havoc test_#t~nondet44#1; 1246#L807 assume !(0 != test_~tmp~10#1); 1258#L807-2 havoc test_#t~nondet45#1;test_~tmp___0~3#1 := test_#t~nondet45#1;havoc test_#t~nondet45#1; 1173#L817 assume !(0 != test_~tmp___0~3#1); 1114#L817-2 havoc test_#t~nondet46#1;test_~tmp___2~0#1 := test_#t~nondet46#1;havoc test_#t~nondet46#1; 1251#L827 assume 0 != test_~tmp___2~0#1; 1152#L833-2 assume { :begin_inline_timeShift } true; 1241#L571 assume !(0 != ~pumpRunning~0); 1242#L571-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret32#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; 1128#L655 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret31#1, processEnvironment__wrappee__lowWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~6#1; 1129#L629-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret30#1, processEnvironment__wrappee__highWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5#1; 1266#L603-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret42#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~6#1;havoc isHighWaterLevel_~tmp~8#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~12#1;havoc isHighWaterSensorDry_~retValue_acc~12#1; 1133#L971-3 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~12#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~12#1; 1134#isHighWaterSensorDry_returnLabel#4 isHighWaterLevel_#t~ret42#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~12#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8#1 := isHighWaterLevel_#t~ret42#1;havoc isHighWaterLevel_#t~ret42#1; 1126#L757-9 assume 0 != isHighWaterLevel_~tmp~8#1;isHighWaterLevel_~tmp___0~1#1 := 0; 1127#L757-11 isHighWaterLevel_~retValue_acc~6#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1; 1137#isHighWaterLevel_returnLabel#4 processEnvironment__wrappee__highWaterSensor_#t~ret30#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret42#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~5#1 := processEnvironment__wrappee__highWaterSensor_#t~ret30#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret30#1; 1139#L607-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1140#processEnvironment__wrappee__base_returnLabel#7 assume { :end_inline_processEnvironment__wrappee__base } true; 1227#L603-7 havoc processEnvironment__wrappee__highWaterSensor_#t~ret30#1, processEnvironment__wrappee__highWaterSensor_~tmp~5#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1108#L629-3 havoc processEnvironment__wrappee__lowWaterSensor_#t~ret31#1, processEnvironment__wrappee__lowWaterSensor_~tmp~6#1;assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 1109#L655-1 havoc processEnvironment_#t~ret32#1, processEnvironment_~tmp~7#1;assume { :end_inline_processEnvironment } true; 1281#L578-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret4#1, __utac_acc__Specification1_spec__1_#t~ret5#1, __utac_acc__Specification1_spec__1_~tmp~0#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~0#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;isMethaneLevelCritical_~retValue_acc~10#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~10#1; 1282#isMethaneLevelCritical_returnLabel#2 __utac_acc__Specification1_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~0#1 := __utac_acc__Specification1_spec__1_#t~ret4#1;havoc __utac_acc__Specification1_spec__1_#t~ret4#1; 1184#L61 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0#1); 1186#L61-1 havoc __utac_acc__Specification1_spec__1_#t~ret4#1, __utac_acc__Specification1_spec__1_#t~ret5#1, __utac_acc__Specification1_spec__1_~tmp~0#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification1_spec__1 } true; 1235#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1117#L797-2 [2023-11-26 10:42:18,669 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:18,669 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2023-11-26 10:42:18,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:18,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031537693] [2023-11-26 10:42:18,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:18,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:18,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:42:18,702 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:42:18,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:42:18,718 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:42:18,719 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:18,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1895099630, now seen corresponding path program 1 times [2023-11-26 10:42:18,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:18,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674717096] [2023-11-26 10:42:18,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:18,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:18,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:18,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:42:18,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:42:18,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674717096] [2023-11-26 10:42:18,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674717096] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:42:18,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:42:18,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 10:42:18,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520085107] [2023-11-26 10:42:18,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:42:18,843 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-26 10:42:18,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:42:18,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 10:42:18,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 10:42:18,844 INFO L87 Difference]: Start difference. First operand 267 states and 338 transitions. cyclomatic complexity: 73 Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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) [2023-11-26 10:42:19,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:42:19,021 INFO L93 Difference]: Finished difference Result 536 states and 660 transitions. [2023-11-26 10:42:19,022 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 536 states and 660 transitions. [2023-11-26 10:42:19,027 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 374 [2023-11-26 10:42:19,032 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 536 states to 536 states and 660 transitions. [2023-11-26 10:42:19,032 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 536 [2023-11-26 10:42:19,032 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 536 [2023-11-26 10:42:19,033 INFO L73 IsDeterministic]: Start isDeterministic. Operand 536 states and 660 transitions. [2023-11-26 10:42:19,033 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:42:19,034 INFO L218 hiAutomatonCegarLoop]: Abstraction has 536 states and 660 transitions. [2023-11-26 10:42:19,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states and 660 transitions. [2023-11-26 10:42:19,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 285. [2023-11-26 10:42:19,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 285 states have (on average 1.249122807017544) internal successors, (356), 284 states have internal predecessors, (356), 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) [2023-11-26 10:42:19,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 356 transitions. [2023-11-26 10:42:19,047 INFO L240 hiAutomatonCegarLoop]: Abstraction has 285 states and 356 transitions. [2023-11-26 10:42:19,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 10:42:19,048 INFO L428 stractBuchiCegarLoop]: Abstraction has 285 states and 356 transitions. [2023-11-26 10:42:19,048 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-26 10:42:19,049 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 285 states and 356 transitions. [2023-11-26 10:42:19,051 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 196 [2023-11-26 10:42:19,051 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 10:42:19,051 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 10:42:19,052 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:42:19,052 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, 1, 1, 1, 1] [2023-11-26 10:42:19,052 INFO L748 eck$LassoCheckResult]: Stem: 2098#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(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;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 2099#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret29#1, main_~retValue_acc~3#1, main_~tmp~4#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; 1922#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1923#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~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; 2029#valid_product_returnLabel#1 main_#t~ret29#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret29#1;havoc main_#t~ret29#1; 2030#L544 assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 2000#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet44#1, test_#t~nondet45#1, test_#t~nondet46#1, test_#t~nondet47#1, test_~splverifierCounter~0#1, test_~tmp~10#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~10#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1927#L797-2 [2023-11-26 10:42:19,052 INFO L750 eck$LassoCheckResult]: Loop: 1927#L797-2 assume !false; 1928#L798 assume test_~splverifierCounter~0#1 < 4; 2066#L799 havoc test_#t~nondet44#1;test_~tmp~10#1 := test_#t~nondet44#1;havoc test_#t~nondet44#1; 2067#L807 assume !(0 != test_~tmp~10#1); 2081#L807-2 havoc test_#t~nondet45#1;test_~tmp___0~3#1 := test_#t~nondet45#1;havoc test_#t~nondet45#1; 1989#L817 assume !(0 != test_~tmp___0~3#1); 1925#L817-2 havoc test_#t~nondet46#1;test_~tmp___2~0#1 := test_#t~nondet46#1;havoc test_#t~nondet46#1; 2074#L827 assume 0 != test_~tmp___2~0#1; 1967#L833-2 assume { :begin_inline_timeShift } true; 2060#L571 assume !(0 != ~pumpRunning~0); 2061#L571-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret32#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; 1940#L655 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret31#1, processEnvironment__wrappee__lowWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~6#1; 1941#L629-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret30#1, processEnvironment__wrappee__highWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5#1; 2090#L603-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret42#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~6#1;havoc isHighWaterLevel_~tmp~8#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~12#1;havoc isHighWaterSensorDry_~retValue_acc~12#1; 1944#L971-3 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~12#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~12#1; 1945#isHighWaterSensorDry_returnLabel#4 isHighWaterLevel_#t~ret42#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~12#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8#1 := isHighWaterLevel_#t~ret42#1;havoc isHighWaterLevel_#t~ret42#1; 1938#L757-9 assume !(0 != isHighWaterLevel_~tmp~8#1);isHighWaterLevel_~tmp___0~1#1 := 1; 1939#L757-11 isHighWaterLevel_~retValue_acc~6#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1; 1951#isHighWaterLevel_returnLabel#4 processEnvironment__wrappee__highWaterSensor_#t~ret30#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret42#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~5#1 := processEnvironment__wrappee__highWaterSensor_#t~ret30#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret30#1; 1954#L607-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1955#processEnvironment__wrappee__base_returnLabel#7 assume { :end_inline_processEnvironment__wrappee__base } true; 2046#L603-7 havoc processEnvironment__wrappee__highWaterSensor_#t~ret30#1, processEnvironment__wrappee__highWaterSensor_~tmp~5#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 2180#L629-3 havoc processEnvironment__wrappee__lowWaterSensor_#t~ret31#1, processEnvironment__wrappee__lowWaterSensor_~tmp~6#1;assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 2128#L655-1 havoc processEnvironment_#t~ret32#1, processEnvironment_~tmp~7#1;assume { :end_inline_processEnvironment } true; 2179#L578-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret4#1, __utac_acc__Specification1_spec__1_#t~ret5#1, __utac_acc__Specification1_spec__1_~tmp~0#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~0#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;isMethaneLevelCritical_~retValue_acc~10#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~10#1; 2117#isMethaneLevelCritical_returnLabel#2 __utac_acc__Specification1_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~0#1 := __utac_acc__Specification1_spec__1_#t~ret4#1;havoc __utac_acc__Specification1_spec__1_#t~ret4#1; 2001#L61 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0#1); 2003#L61-1 havoc __utac_acc__Specification1_spec__1_#t~ret4#1, __utac_acc__Specification1_spec__1_#t~ret5#1, __utac_acc__Specification1_spec__1_~tmp~0#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification1_spec__1 } true; 2054#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1927#L797-2 [2023-11-26 10:42:19,053 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:19,053 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2023-11-26 10:42:19,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:19,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370285021] [2023-11-26 10:42:19,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:19,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:19,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:42:19,061 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:42:19,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:42:19,069 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:42:19,069 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:19,070 INFO L85 PathProgramCache]: Analyzing trace with hash 1308293616, now seen corresponding path program 1 times [2023-11-26 10:42:19,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:19,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009198420] [2023-11-26 10:42:19,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:19,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:19,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:19,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:42:19,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:42:19,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009198420] [2023-11-26 10:42:19,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009198420] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:42:19,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:42:19,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 10:42:19,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046902344] [2023-11-26 10:42:19,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:42:19,124 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-26 10:42:19,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:42:19,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 10:42:19,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:42:19,125 INFO L87 Difference]: Start difference. First operand 285 states and 356 transitions. cyclomatic complexity: 73 Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 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) [2023-11-26 10:42:19,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:42:19,353 INFO L93 Difference]: Finished difference Result 500 states and 615 transitions. [2023-11-26 10:42:19,353 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 500 states and 615 transitions. [2023-11-26 10:42:19,358 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 350 [2023-11-26 10:42:19,362 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 500 states to 500 states and 615 transitions. [2023-11-26 10:42:19,363 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 500 [2023-11-26 10:42:19,363 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 500 [2023-11-26 10:42:19,363 INFO L73 IsDeterministic]: Start isDeterministic. Operand 500 states and 615 transitions. [2023-11-26 10:42:19,364 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:42:19,365 INFO L218 hiAutomatonCegarLoop]: Abstraction has 500 states and 615 transitions. [2023-11-26 10:42:19,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states and 615 transitions. [2023-11-26 10:42:19,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 312. [2023-11-26 10:42:19,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 312 states have (on average 1.2275641025641026) internal successors, (383), 311 states have internal predecessors, (383), 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) [2023-11-26 10:42:19,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 383 transitions. [2023-11-26 10:42:19,381 INFO L240 hiAutomatonCegarLoop]: Abstraction has 312 states and 383 transitions. [2023-11-26 10:42:19,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 10:42:19,383 INFO L428 stractBuchiCegarLoop]: Abstraction has 312 states and 383 transitions. [2023-11-26 10:42:19,384 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-11-26 10:42:19,384 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 312 states and 383 transitions. [2023-11-26 10:42:19,387 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 214 [2023-11-26 10:42:19,390 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 10:42:19,391 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 10:42:19,392 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:42:19,392 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, 1, 1, 1, 1] [2023-11-26 10:42:19,392 INFO L748 eck$LassoCheckResult]: Stem: 2890#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(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;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 2891#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret29#1, main_~retValue_acc~3#1, main_~tmp~4#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; 2719#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2720#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~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; 2821#valid_product_returnLabel#1 main_#t~ret29#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret29#1;havoc main_#t~ret29#1; 2822#L544 assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 2792#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet44#1, test_#t~nondet45#1, test_#t~nondet46#1, test_#t~nondet47#1, test_~splverifierCounter~0#1, test_~tmp~10#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~10#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2724#L797-2 [2023-11-26 10:42:19,392 INFO L750 eck$LassoCheckResult]: Loop: 2724#L797-2 assume !false; 2725#L798 assume test_~splverifierCounter~0#1 < 4; 2860#L799 havoc test_#t~nondet44#1;test_~tmp~10#1 := test_#t~nondet44#1;havoc test_#t~nondet44#1; 2861#L807 assume !(0 != test_~tmp~10#1); 2872#L807-2 havoc test_#t~nondet45#1;test_~tmp___0~3#1 := test_#t~nondet45#1;havoc test_#t~nondet45#1; 2781#L817 assume !(0 != test_~tmp___0~3#1); 2722#L817-2 havoc test_#t~nondet46#1;test_~tmp___2~0#1 := test_#t~nondet46#1;havoc test_#t~nondet46#1; 2865#L827 assume 0 != test_~tmp___2~0#1; 2760#L833-2 assume { :begin_inline_timeShift } true; 2854#L571 assume !(0 != ~pumpRunning~0); 2855#L571-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret32#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; 2736#L655 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret31#1, processEnvironment__wrappee__lowWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~6#1; 2737#L629-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret30#1, processEnvironment__wrappee__highWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5#1; 2882#L603-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret42#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~6#1;havoc isHighWaterLevel_~tmp~8#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~12#1;havoc isHighWaterSensorDry_~retValue_acc~12#1; 2739#L971-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~12#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~12#1; 2741#isHighWaterSensorDry_returnLabel#4 isHighWaterLevel_#t~ret42#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~12#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8#1 := isHighWaterLevel_#t~ret42#1;havoc isHighWaterLevel_#t~ret42#1; 2952#L757-9 assume 0 != isHighWaterLevel_~tmp~8#1;isHighWaterLevel_~tmp___0~1#1 := 0; 2951#L757-11 isHighWaterLevel_~retValue_acc~6#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1; 2937#isHighWaterLevel_returnLabel#4 processEnvironment__wrappee__highWaterSensor_#t~ret30#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret42#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~5#1 := processEnvironment__wrappee__highWaterSensor_#t~ret30#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret30#1; 2929#L607-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2838#processEnvironment__wrappee__base_returnLabel#7 assume { :end_inline_processEnvironment__wrappee__base } true; 2839#L603-7 havoc processEnvironment__wrappee__highWaterSensor_#t~ret30#1, processEnvironment__wrappee__highWaterSensor_~tmp~5#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 2717#L629-3 havoc processEnvironment__wrappee__lowWaterSensor_#t~ret31#1, processEnvironment__wrappee__lowWaterSensor_~tmp~6#1;assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 2718#L655-1 havoc processEnvironment_#t~ret32#1, processEnvironment_~tmp~7#1;assume { :end_inline_processEnvironment } true; 2899#L578-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret4#1, __utac_acc__Specification1_spec__1_#t~ret5#1, __utac_acc__Specification1_spec__1_~tmp~0#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~0#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;isMethaneLevelCritical_~retValue_acc~10#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~10#1; 2901#isMethaneLevelCritical_returnLabel#2 __utac_acc__Specification1_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~0#1 := __utac_acc__Specification1_spec__1_#t~ret4#1;havoc __utac_acc__Specification1_spec__1_#t~ret4#1; 2793#L61 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0#1); 2795#L61-1 havoc __utac_acc__Specification1_spec__1_#t~ret4#1, __utac_acc__Specification1_spec__1_#t~ret5#1, __utac_acc__Specification1_spec__1_~tmp~0#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification1_spec__1 } true; 2847#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 2724#L797-2 [2023-11-26 10:42:19,393 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:19,393 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 5 times [2023-11-26 10:42:19,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:19,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991790851] [2023-11-26 10:42:19,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:19,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:19,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:42:19,409 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:42:19,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:42:19,426 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:42:19,427 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:19,427 INFO L85 PathProgramCache]: Analyzing trace with hash -1120003988, now seen corresponding path program 1 times [2023-11-26 10:42:19,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:19,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009742684] [2023-11-26 10:42:19,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:19,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:19,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:42:19,448 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:42:19,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:42:19,459 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:42:19,460 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:19,460 INFO L85 PathProgramCache]: Analyzing trace with hash -1245738712, now seen corresponding path program 1 times [2023-11-26 10:42:19,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:19,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258356383] [2023-11-26 10:42:19,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:19,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:19,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:42:19,471 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:42:19,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:42:19,484 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:42:20,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:42:20,603 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:42:20,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:42:20,682 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.11 10:42:20 BoogieIcfgContainer [2023-11-26 10:42:20,682 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-26 10:42:20,683 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 10:42:20,683 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 10:42:20,683 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 10:42:20,683 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:42:17" (3/4) ... [2023-11-26 10:42:20,684 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2023-11-26 10:42:20,753 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be25e669-4f7f-47cc-b0c9-e43361296f95/bin/uautomizer-verify-VRDe98Ueme/witness.graphml [2023-11-26 10:42:20,753 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 10:42:20,754 INFO L158 Benchmark]: Toolchain (without parser) took 5204.93ms. Allocated memory was 121.6MB in the beginning and 172.0MB in the end (delta: 50.3MB). Free memory was 77.2MB in the beginning and 110.1MB in the end (delta: -32.9MB). Peak memory consumption was 20.4MB. Max. memory is 16.1GB. [2023-11-26 10:42:20,755 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 121.6MB. Free memory is still 95.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 10:42:20,755 INFO L158 Benchmark]: CACSL2BoogieTranslator took 513.47ms. Allocated memory is still 121.6MB. Free memory was 76.9MB in the beginning and 57.5MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-26 10:42:20,755 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.61ms. Allocated memory is still 121.6MB. Free memory was 57.3MB in the beginning and 53.2MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 10:42:20,756 INFO L158 Benchmark]: Boogie Preprocessor took 169.20ms. Allocated memory is still 121.6MB. Free memory was 53.0MB in the beginning and 48.2MB in the end (delta: 4.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-26 10:42:20,756 INFO L158 Benchmark]: RCFGBuilder took 958.58ms. Allocated memory was 121.6MB in the beginning and 172.0MB in the end (delta: 50.3MB). Free memory was 48.2MB in the beginning and 116.3MB in the end (delta: -68.0MB). Peak memory consumption was 18.6MB. Max. memory is 16.1GB. [2023-11-26 10:42:20,757 INFO L158 Benchmark]: BuchiAutomizer took 3402.32ms. Allocated memory is still 172.0MB. Free memory was 116.3MB in the beginning and 112.2MB in the end (delta: 4.1MB). Peak memory consumption was 3.9MB. Max. memory is 16.1GB. [2023-11-26 10:42:20,757 INFO L158 Benchmark]: Witness Printer took 70.90ms. Allocated memory is still 172.0MB. Free memory was 112.2MB in the beginning and 110.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 10:42:20,759 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 121.6MB. Free memory is still 95.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 513.47ms. Allocated memory is still 121.6MB. Free memory was 76.9MB in the beginning and 57.5MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 82.61ms. Allocated memory is still 121.6MB. Free memory was 57.3MB in the beginning and 53.2MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 169.20ms. Allocated memory is still 121.6MB. Free memory was 53.0MB in the beginning and 48.2MB in the end (delta: 4.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 958.58ms. Allocated memory was 121.6MB in the beginning and 172.0MB in the end (delta: 50.3MB). Free memory was 48.2MB in the beginning and 116.3MB in the end (delta: -68.0MB). Peak memory consumption was 18.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 3402.32ms. Allocated memory is still 172.0MB. Free memory was 116.3MB in the beginning and 112.2MB in the end (delta: 4.1MB). Peak memory consumption was 3.9MB. Max. memory is 16.1GB. * Witness Printer took 70.90ms. Allocated memory is still 172.0MB. Free memory was 112.2MB in the beginning and 110.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [49] - GenericResultAtLocation [Line: 78]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [78] - GenericResultAtLocation [Line: 87]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [87] - GenericResultAtLocation [Line: 453]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [453] - GenericResultAtLocation [Line: 557]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [557] - GenericResultAtLocation [Line: 786]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [786] - GenericResultAtLocation [Line: 851]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [851] - GenericResultAtLocation [Line: 886]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [886] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (4 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.4 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 312 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.2s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 2.1s. Construction of modules took 0.3s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 0. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 439 StatesRemovedByMinimization, 2 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, 1661 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1661 mSDsluCounter, 2882 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1527 mSDsCounter, 101 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 337 IncrementalHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 101 mSolverCounterUnsat, 1355 mSDtfsCounter, 337 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI3 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: 797]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L257] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L454] int cleanupTimeShifts = 4; [L564] int pumpRunning = 0; [L565] int systemActive = 1; [L888] int waterLevel = 1; [L889] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L535] int retValue_acc ; [L536] int tmp ; [L540] FCALL select_helpers() [L541] FCALL select_features() [L542] CALL, EXPR valid_product() [L878] int retValue_acc ; [L881] retValue_acc = 1 [L882] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L542] RET, EXPR valid_product() [L542] tmp = valid_product() [L544] COND TRUE \read(tmp) [L546] FCALL setup() [L547] CALL runTest() [L526] CALL test() [L788] int splverifierCounter ; [L789] int tmp ; [L790] int tmp___0 ; [L791] int tmp___1 ; [L792] int tmp___2 ; [L795] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L797] COND TRUE 1 [L799] COND TRUE splverifierCounter < 4 [L805] tmp = __VERIFIER_nondet_int() [L807] COND FALSE !(\read(tmp)) [L815] tmp___0 = __VERIFIER_nondet_int() [L817] COND FALSE !(\read(tmp___0)) [L825] tmp___2 = __VERIFIER_nondet_int() [L827] COND TRUE \read(tmp___2) [L840] CALL timeShift() [L571] COND FALSE !(\read(pumpRunning)) [L578] COND TRUE \read(systemActive) [L580] CALL processEnvironment() [L652] int tmp ; [L655] COND FALSE !(\read(pumpRunning)) [L670] CALL processEnvironment__wrappee__lowWaterSensor() [L626] int tmp ; [L629] COND FALSE !(\read(pumpRunning)) [L644] CALL processEnvironment__wrappee__highWaterSensor() [L600] int tmp ; [L603] COND TRUE ! pumpRunning [L605] CALL, EXPR isHighWaterLevel() [L749] int retValue_acc ; [L750] int tmp ; [L751] int tmp___0 ; [L755] CALL, EXPR isHighWaterSensorDry() [L968] int retValue_acc ; [L971] COND TRUE waterLevel < 2 [L972] retValue_acc = 1 [L973] return (retValue_acc); [L755] RET, EXPR isHighWaterSensorDry() [L755] tmp = isHighWaterSensorDry() [L757] COND TRUE \read(tmp) [L758] tmp___0 = 0 [L762] retValue_acc = tmp___0 [L763] return (retValue_acc); [L605] RET, EXPR isHighWaterLevel() [L605] tmp = isHighWaterLevel() [L607] COND FALSE !(\read(tmp)) [L613] FCALL processEnvironment__wrappee__base() [L644] RET processEnvironment__wrappee__highWaterSensor() [L670] RET processEnvironment__wrappee__lowWaterSensor() [L580] RET processEnvironment() [L586] CALL __utac_acc__Specification1_spec__1() [L54] int tmp ; [L55] int tmp___0 ; [L59] CALL, EXPR isMethaneLevelCritical() [L927] int retValue_acc ; [L930] retValue_acc = methaneLevelCritical [L931] return (retValue_acc); [L59] RET, EXPR isMethaneLevelCritical() [L59] tmp = isMethaneLevelCritical() [L61] COND FALSE !(\read(tmp)) [L586] RET __utac_acc__Specification1_spec__1() [L840] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 797]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L257] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L454] int cleanupTimeShifts = 4; [L564] int pumpRunning = 0; [L565] int systemActive = 1; [L888] int waterLevel = 1; [L889] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L535] int retValue_acc ; [L536] int tmp ; [L540] FCALL select_helpers() [L541] FCALL select_features() [L542] CALL, EXPR valid_product() [L878] int retValue_acc ; [L881] retValue_acc = 1 [L882] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L542] RET, EXPR valid_product() [L542] tmp = valid_product() [L544] COND TRUE \read(tmp) [L546] FCALL setup() [L547] CALL runTest() [L526] CALL test() [L788] int splverifierCounter ; [L789] int tmp ; [L790] int tmp___0 ; [L791] int tmp___1 ; [L792] int tmp___2 ; [L795] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L797] COND TRUE 1 [L799] COND TRUE splverifierCounter < 4 [L805] tmp = __VERIFIER_nondet_int() [L807] COND FALSE !(\read(tmp)) [L815] tmp___0 = __VERIFIER_nondet_int() [L817] COND FALSE !(\read(tmp___0)) [L825] tmp___2 = __VERIFIER_nondet_int() [L827] COND TRUE \read(tmp___2) [L840] CALL timeShift() [L571] COND FALSE !(\read(pumpRunning)) [L578] COND TRUE \read(systemActive) [L580] CALL processEnvironment() [L652] int tmp ; [L655] COND FALSE !(\read(pumpRunning)) [L670] CALL processEnvironment__wrappee__lowWaterSensor() [L626] int tmp ; [L629] COND FALSE !(\read(pumpRunning)) [L644] CALL processEnvironment__wrappee__highWaterSensor() [L600] int tmp ; [L603] COND TRUE ! pumpRunning [L605] CALL, EXPR isHighWaterLevel() [L749] int retValue_acc ; [L750] int tmp ; [L751] int tmp___0 ; [L755] CALL, EXPR isHighWaterSensorDry() [L968] int retValue_acc ; [L971] COND TRUE waterLevel < 2 [L972] retValue_acc = 1 [L973] return (retValue_acc); [L755] RET, EXPR isHighWaterSensorDry() [L755] tmp = isHighWaterSensorDry() [L757] COND TRUE \read(tmp) [L758] tmp___0 = 0 [L762] retValue_acc = tmp___0 [L763] return (retValue_acc); [L605] RET, EXPR isHighWaterLevel() [L605] tmp = isHighWaterLevel() [L607] COND FALSE !(\read(tmp)) [L613] FCALL processEnvironment__wrappee__base() [L644] RET processEnvironment__wrappee__highWaterSensor() [L670] RET processEnvironment__wrappee__lowWaterSensor() [L580] RET processEnvironment() [L586] CALL __utac_acc__Specification1_spec__1() [L54] int tmp ; [L55] int tmp___0 ; [L59] CALL, EXPR isMethaneLevelCritical() [L927] int retValue_acc ; [L930] retValue_acc = methaneLevelCritical [L931] return (retValue_acc); [L59] RET, EXPR isMethaneLevelCritical() [L59] tmp = isMethaneLevelCritical() [L61] COND FALSE !(\read(tmp)) [L586] RET __utac_acc__Specification1_spec__1() [L840] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2023-11-26 10:42:20,804 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be25e669-4f7f-47cc-b0c9-e43361296f95/bin/uautomizer-verify-VRDe98Ueme/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)