./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product38.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e484d6-d2da-458f-bb8d-559850a8a7d1/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e484d6-d2da-458f-bb8d-559850a8a7d1/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e484d6-d2da-458f-bb8d-559850a8a7d1/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e484d6-d2da-458f-bb8d-559850a8a7d1/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product38.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e484d6-d2da-458f-bb8d-559850a8a7d1/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e484d6-d2da-458f-bb8d-559850a8a7d1/bin/uautomizer-verify-BQ2R08f2Ya --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 ca9ad45e9cd0fa7cfc478092837003ff1c91f26680d4fb1c37c440560090c9e6 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 06:29:48,639 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 06:29:48,703 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e484d6-d2da-458f-bb8d-559850a8a7d1/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-29 06:29:48,709 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 06:29:48,709 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 06:29:48,737 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 06:29:48,737 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 06:29:48,738 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 06:29:48,739 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 06:29:48,739 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 06:29:48,740 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 06:29:48,741 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 06:29:48,741 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 06:29:48,742 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-29 06:29:48,742 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-29 06:29:48,743 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-29 06:29:48,743 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-29 06:29:48,743 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-29 06:29:48,744 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-29 06:29:48,745 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 06:29:48,745 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-29 06:29:48,746 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 06:29:48,746 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 06:29:48,747 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 06:29:48,747 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 06:29:48,747 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-29 06:29:48,748 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-29 06:29:48,748 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-29 06:29:48,749 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 06:29:48,749 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 06:29:48,750 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 06:29:48,750 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-29 06:29:48,750 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 06:29:48,751 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 06:29:48,758 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 06:29:48,759 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 06:29:48,759 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 06:29:48,759 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-29 06:29:48,760 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_e0e484d6-d2da-458f-bb8d-559850a8a7d1/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e484d6-d2da-458f-bb8d-559850a8a7d1/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ca9ad45e9cd0fa7cfc478092837003ff1c91f26680d4fb1c37c440560090c9e6 [2023-11-29 06:29:48,983 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 06:29:49,007 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 06:29:49,009 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 06:29:49,010 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 06:29:49,011 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 06:29:49,012 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e484d6-d2da-458f-bb8d-559850a8a7d1/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/product-lines/minepump_spec2_product38.cil.c [2023-11-29 06:29:51,736 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 06:29:51,948 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 06:29:51,948 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e484d6-d2da-458f-bb8d-559850a8a7d1/sv-benchmarks/c/product-lines/minepump_spec2_product38.cil.c [2023-11-29 06:29:51,961 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e484d6-d2da-458f-bb8d-559850a8a7d1/bin/uautomizer-verify-BQ2R08f2Ya/data/8a887a0b7/c4e74df21053496bbdbf79b8d0fa9870/FLAGdca52e481 [2023-11-29 06:29:51,972 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e484d6-d2da-458f-bb8d-559850a8a7d1/bin/uautomizer-verify-BQ2R08f2Ya/data/8a887a0b7/c4e74df21053496bbdbf79b8d0fa9870 [2023-11-29 06:29:51,974 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 06:29:51,976 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 06:29:51,977 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 06:29:51,977 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 06:29:51,981 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 06:29:51,982 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:29:51" (1/1) ... [2023-11-29 06:29:51,983 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b6aa9ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:29:51, skipping insertion in model container [2023-11-29 06:29:51,983 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:29:51" (1/1) ... [2023-11-29 06:29:52,030 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 06:29:52,269 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:29:52,284 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 06:29:52,294 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] [2023-11-29 06:29:52,296 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [58] [2023-11-29 06:29:52,296 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [99] [2023-11-29 06:29:52,297 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [137] [2023-11-29 06:29:52,297 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [331] [2023-11-29 06:29:52,297 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [401] [2023-11-29 06:29:52,297 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [498] [2023-11-29 06:29:52,298 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [593] [2023-11-29 06:29:52,354 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:29:52,375 INFO L206 MainTranslator]: Completed translation [2023-11-29 06:29:52,375 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:29:52 WrapperNode [2023-11-29 06:29:52,375 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 06:29:52,376 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 06:29:52,376 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 06:29:52,377 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 06:29:52,384 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:29:52" (1/1) ... [2023-11-29 06:29:52,399 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:29:52" (1/1) ... [2023-11-29 06:29:52,434 INFO L138 Inliner]: procedures = 55, calls = 100, calls flagged for inlining = 53, calls inlined = 82, statements flattened = 550 [2023-11-29 06:29:52,435 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 06:29:52,436 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 06:29:52,436 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 06:29:52,436 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 06:29:52,448 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:29:52" (1/1) ... [2023-11-29 06:29:52,449 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:29:52" (1/1) ... [2023-11-29 06:29:52,452 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:29:52" (1/1) ... [2023-11-29 06:29:52,471 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]. [2023-11-29 06:29:52,471 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:29:52" (1/1) ... [2023-11-29 06:29:52,471 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:29:52" (1/1) ... [2023-11-29 06:29:52,481 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:29:52" (1/1) ... [2023-11-29 06:29:52,488 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:29:52" (1/1) ... [2023-11-29 06:29:52,490 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:29:52" (1/1) ... [2023-11-29 06:29:52,493 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:29:52" (1/1) ... [2023-11-29 06:29:52,497 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 06:29:52,498 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 06:29:52,498 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 06:29:52,498 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 06:29:52,499 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:29:52" (1/1) ... [2023-11-29 06:29:52,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:29:52,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e484d6-d2da-458f-bb8d-559850a8a7d1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:29:52,530 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e484d6-d2da-458f-bb8d-559850a8a7d1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 06:29:52,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e484d6-d2da-458f-bb8d-559850a8a7d1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-29 06:29:52,570 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 06:29:52,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 06:29:52,570 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 06:29:52,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 06:29:52,648 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 06:29:52,650 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 06:29:53,021 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 06:29:53,034 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 06:29:53,035 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-29 06:29:53,036 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:29:53 BoogieIcfgContainer [2023-11-29 06:29:53,037 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 06:29:53,038 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-29 06:29:53,038 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-29 06:29:53,041 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-29 06:29:53,042 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-29 06:29:53,042 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 06:29:51" (1/3) ... [2023-11-29 06:29:53,043 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@33989342 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 06:29:53, skipping insertion in model container [2023-11-29 06:29:53,043 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-29 06:29:53,044 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:29:52" (2/3) ... [2023-11-29 06:29:53,044 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@33989342 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 06:29:53, skipping insertion in model container [2023-11-29 06:29:53,044 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-29 06:29:53,044 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:29:53" (3/3) ... [2023-11-29 06:29:53,046 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product38.cil.c [2023-11-29 06:29:53,105 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-29 06:29:53,105 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-29 06:29:53,105 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-29 06:29:53,106 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-29 06:29:53,106 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-29 06:29:53,106 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-29 06:29:53,106 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-29 06:29:53,106 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-29 06:29:53,111 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 164 states, 163 states have (on average 1.3742331288343559) internal successors, (224), 163 states have internal predecessors, (224), 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) [2023-11-29 06:29:53,136 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 105 [2023-11-29 06:29:53,137 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 06:29:53,137 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 06:29:53,144 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:29:53,145 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:29:53,145 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-29 06:29:53,146 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 164 states, 163 states have (on average 1.3742331288343559) internal successors, (224), 163 states have internal predecessors, (224), 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) [2023-11-29 06:29:53,154 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 105 [2023-11-29 06:29:53,154 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 06:29:53,155 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 06:29:53,156 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:29:53,156 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:29:53,161 INFO L748 eck$LassoCheckResult]: Stem: 35#$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);~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 50#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret23#1, main_~retValue_acc~5#1, main_~tmp~5#1;havoc main_~retValue_acc~5#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 31#select_helpers_returnLabel#1true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 129#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~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 103#valid_product_returnLabel#1true main_#t~ret23#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret23#1;havoc main_#t~ret23#1; 113#L485true assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 86#setup_returnLabel#1true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 128#__utac_acc__Specification2_spec__1_returnLabel#1true assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet19#1, test_#t~nondet20#1, test_#t~nondet21#1, test_#t~nondet22#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 138#L345-2true [2023-11-29 06:29:53,162 INFO L750 eck$LassoCheckResult]: Loop: 138#L345-2true assume !false; 58#L346true assume test_~splverifierCounter~0#1 < 4; 139#L347true havoc test_#t~nondet19#1;test_~tmp~4#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 39#L355true assume !(0 != test_~tmp~4#1); 98#L355-2true havoc test_#t~nondet20#1;test_~tmp___0~2#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; 68#L365true assume !(0 != test_~tmp___0~2#1); 158#L365-2true havoc test_#t~nondet21#1;test_~tmp___2~0#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; 20#L375true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 69#startSystem_returnLabel#1true assume { :end_inline_startSystem } true; 28#L383-2true assume { :begin_inline_timeShift } true; 14#L153true assume !(0 != ~pumpRunning~0); 150#L153-2true assume !(0 != ~systemActive~0); 37#L160-1true assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret4#1, __utac_acc__Specification2_spec__2_#t~ret5#1, __utac_acc__Specification2_spec__2_~tmp~0#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~0#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 84#isMethaneLevelCritical_returnLabel#2true __utac_acc__Specification2_spec__2_#t~ret4#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~0#1 := __utac_acc__Specification2_spec__2_#t~ret4#1;havoc __utac_acc__Specification2_spec__2_#t~ret4#1; 27#L78true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0#1);~methAndRunningLastTime~0 := 0; 108#L78-1true havoc __utac_acc__Specification2_spec__2_#t~ret4#1, __utac_acc__Specification2_spec__2_#t~ret5#1, __utac_acc__Specification2_spec__2_~tmp~0#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification2_spec__2 } true; 76#timeShift_returnLabel#1true assume { :end_inline_timeShift } true; 138#L345-2true [2023-11-29 06:29:53,168 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:29:53,169 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2023-11-29 06:29:53,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:29:53,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785564351] [2023-11-29 06:29:53,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:29:53,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:29:53,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:29:53,272 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 06:29:53,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:29:53,309 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 06:29:53,312 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:29:53,312 INFO L85 PathProgramCache]: Analyzing trace with hash -264286261, now seen corresponding path program 1 times [2023-11-29 06:29:53,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:29:53,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004894209] [2023-11-29 06:29:53,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:29:53,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:29:53,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:29:53,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:29:53,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:29:53,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004894209] [2023-11-29 06:29:53,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004894209] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:29:53,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:29:53,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:29:53,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581540565] [2023-11-29 06:29:53,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:29:53,404 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-29 06:29:53,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:29:53,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:29:53,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:29:53,442 INFO L87 Difference]: Start difference. First operand has 164 states, 163 states have (on average 1.3742331288343559) internal successors, (224), 163 states have internal predecessors, (224), 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 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2023-11-29 06:29:53,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:29:53,480 INFO L93 Difference]: Finished difference Result 158 states and 208 transitions. [2023-11-29 06:29:53,482 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 158 states and 208 transitions. [2023-11-29 06:29:53,487 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 99 [2023-11-29 06:29:53,494 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 158 states to 148 states and 197 transitions. [2023-11-29 06:29:53,495 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 148 [2023-11-29 06:29:53,497 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 148 [2023-11-29 06:29:53,497 INFO L73 IsDeterministic]: Start isDeterministic. Operand 148 states and 197 transitions. [2023-11-29 06:29:53,499 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:29:53,499 INFO L218 hiAutomatonCegarLoop]: Abstraction has 148 states and 197 transitions. [2023-11-29 06:29:53,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states and 197 transitions. [2023-11-29 06:29:53,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2023-11-29 06:29:53,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 148 states have (on average 1.3310810810810811) internal successors, (197), 147 states have internal predecessors, (197), 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) [2023-11-29 06:29:53,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 197 transitions. [2023-11-29 06:29:53,536 INFO L240 hiAutomatonCegarLoop]: Abstraction has 148 states and 197 transitions. [2023-11-29 06:29:53,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:29:53,541 INFO L428 stractBuchiCegarLoop]: Abstraction has 148 states and 197 transitions. [2023-11-29 06:29:53,541 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-29 06:29:53,541 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 148 states and 197 transitions. [2023-11-29 06:29:53,544 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 99 [2023-11-29 06:29:53,544 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 06:29:53,544 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 06:29:53,545 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:29:53,545 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] [2023-11-29 06:29:53,545 INFO L748 eck$LassoCheckResult]: Stem: 386#$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);~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 387#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret23#1, main_~retValue_acc~5#1, main_~tmp~5#1;havoc main_~retValue_acc~5#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 380#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 381#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~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 452#valid_product_returnLabel#1 main_#t~ret23#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret23#1;havoc main_#t~ret23#1; 453#L485 assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 440#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 441#__utac_acc__Specification2_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet19#1, test_#t~nondet20#1, test_#t~nondet21#1, test_#t~nondet22#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 435#L345-2 [2023-11-29 06:29:53,546 INFO L750 eck$LassoCheckResult]: Loop: 435#L345-2 assume !false; 421#L346 assume test_~splverifierCounter~0#1 < 4; 422#L347 havoc test_#t~nondet19#1;test_~tmp~4#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 394#L355 assume !(0 != test_~tmp~4#1); 395#L355-2 havoc test_#t~nondet20#1;test_~tmp___0~2#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; 428#L365 assume !(0 != test_~tmp___0~2#1); 339#L365-2 havoc test_#t~nondet21#1;test_~tmp___2~0#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; 360#L375 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 361#startSystem_returnLabel#1 assume { :end_inline_startSystem } true; 378#L383-2 assume { :begin_inline_timeShift } true; 348#L153 assume !(0 != ~pumpRunning~0); 349#L153-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret8#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 467#L211 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret7#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 424#L185-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 334#processEnvironment__wrappee__base_returnLabel#4 assume { :end_inline_processEnvironment__wrappee__base } true; 335#L185-3 havoc processEnvironment__wrappee__highWaterSensor_#t~ret7#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 470#L211-1 havoc processEnvironment_#t~ret8#1, processEnvironment_~tmp~2#1;assume { :end_inline_processEnvironment } true; 390#L160-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret4#1, __utac_acc__Specification2_spec__2_#t~ret5#1, __utac_acc__Specification2_spec__2_~tmp~0#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~0#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 391#isMethaneLevelCritical_returnLabel#2 __utac_acc__Specification2_spec__2_#t~ret4#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~0#1 := __utac_acc__Specification2_spec__2_#t~ret4#1;havoc __utac_acc__Specification2_spec__2_#t~ret4#1; 374#L78 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0#1);~methAndRunningLastTime~0 := 0; 376#L78-1 havoc __utac_acc__Specification2_spec__2_#t~ret4#1, __utac_acc__Specification2_spec__2_#t~ret5#1, __utac_acc__Specification2_spec__2_~tmp~0#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification2_spec__2 } true; 434#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 435#L345-2 [2023-11-29 06:29:53,546 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:29:53,546 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2023-11-29 06:29:53,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:29:53,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394995330] [2023-11-29 06:29:53,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:29:53,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:29:53,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:29:53,561 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 06:29:53,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:29:53,576 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 06:29:53,576 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:29:53,576 INFO L85 PathProgramCache]: Analyzing trace with hash -590015920, now seen corresponding path program 1 times [2023-11-29 06:29:53,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:29:53,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470669449] [2023-11-29 06:29:53,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:29:53,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:29:53,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:29:53,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:29:53,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:29:53,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470669449] [2023-11-29 06:29:53,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470669449] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:29:53,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:29:53,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:29:53,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056917823] [2023-11-29 06:29:53,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:29:53,606 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-29 06:29:53,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:29:53,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:29:53,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:29:53,607 INFO L87 Difference]: Start difference. First operand 148 states and 197 transitions. cyclomatic complexity: 51 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) [2023-11-29 06:29:53,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:29:53,695 INFO L93 Difference]: Finished difference Result 207 states and 266 transitions. [2023-11-29 06:29:53,695 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 207 states and 266 transitions. [2023-11-29 06:29:53,697 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 144 [2023-11-29 06:29:53,700 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 207 states to 207 states and 266 transitions. [2023-11-29 06:29:53,700 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 207 [2023-11-29 06:29:53,701 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 207 [2023-11-29 06:29:53,701 INFO L73 IsDeterministic]: Start isDeterministic. Operand 207 states and 266 transitions. [2023-11-29 06:29:53,703 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:29:53,703 INFO L218 hiAutomatonCegarLoop]: Abstraction has 207 states and 266 transitions. [2023-11-29 06:29:53,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states and 266 transitions. [2023-11-29 06:29:53,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 207. [2023-11-29 06:29:53,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 207 states have (on average 1.285024154589372) internal successors, (266), 206 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:29:53,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 266 transitions. [2023-11-29 06:29:53,716 INFO L240 hiAutomatonCegarLoop]: Abstraction has 207 states and 266 transitions. [2023-11-29 06:29:53,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:29:53,717 INFO L428 stractBuchiCegarLoop]: Abstraction has 207 states and 266 transitions. [2023-11-29 06:29:53,717 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-29 06:29:53,717 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 207 states and 266 transitions. [2023-11-29 06:29:53,719 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 144 [2023-11-29 06:29:53,720 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 06:29:53,720 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 06:29:53,721 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:29:53,721 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] [2023-11-29 06:29:53,721 INFO L748 eck$LassoCheckResult]: Stem: 746#$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);~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 747#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret23#1, main_~retValue_acc~5#1, main_~tmp~5#1;havoc main_~retValue_acc~5#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 742#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 743#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~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 817#valid_product_returnLabel#1 main_#t~ret23#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret23#1;havoc main_#t~ret23#1; 818#L485 assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 803#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 804#__utac_acc__Specification2_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet19#1, test_#t~nondet20#1, test_#t~nondet21#1, test_#t~nondet22#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 798#L345-2 [2023-11-29 06:29:53,722 INFO L750 eck$LassoCheckResult]: Loop: 798#L345-2 assume !false; 780#L346 assume test_~splverifierCounter~0#1 < 4; 781#L347 havoc test_#t~nondet19#1;test_~tmp~4#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 754#L355 assume !(0 != test_~tmp~4#1); 755#L355-2 havoc test_#t~nondet20#1;test_~tmp___0~2#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; 790#L365 assume !(0 != test_~tmp___0~2#1); 700#L365-2 havoc test_#t~nondet21#1;test_~tmp___2~0#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; 719#L375 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 720#startSystem_returnLabel#1 assume { :end_inline_startSystem } true; 737#L383-2 assume { :begin_inline_timeShift } true; 707#L153 assume !(0 != ~pumpRunning~0); 708#L153-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret8#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 831#L211 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret7#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 785#L185-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret18#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~3#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~4#1;havoc isHighWaterLevel_~tmp~3#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 776#L583-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 763#isHighWaterSensorDry_returnLabel#2 isHighWaterLevel_#t~ret18#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~3#1 := isHighWaterLevel_#t~ret18#1;havoc isHighWaterLevel_#t~ret18#1; 744#L313-3 assume !(0 != isHighWaterLevel_~tmp~3#1);isHighWaterLevel_~tmp___0~1#1 := 1; 745#L313-5 isHighWaterLevel_~retValue_acc~4#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1; 757#isHighWaterLevel_returnLabel#2 processEnvironment__wrappee__highWaterSensor_#t~ret7#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret18#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~3#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret7#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret7#1; 836#L189-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 758#processEnvironment__wrappee__base_returnLabel#3 assume { :end_inline_processEnvironment__wrappee__base } true; 759#L185-3 havoc processEnvironment__wrappee__highWaterSensor_#t~ret7#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 833#L211-1 havoc processEnvironment_#t~ret8#1, processEnvironment_~tmp~2#1;assume { :end_inline_processEnvironment } true; 750#L160-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret4#1, __utac_acc__Specification2_spec__2_#t~ret5#1, __utac_acc__Specification2_spec__2_~tmp~0#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~0#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 751#isMethaneLevelCritical_returnLabel#2 __utac_acc__Specification2_spec__2_#t~ret4#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~0#1 := __utac_acc__Specification2_spec__2_#t~ret4#1;havoc __utac_acc__Specification2_spec__2_#t~ret4#1; 734#L78 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0#1);~methAndRunningLastTime~0 := 0; 736#L78-1 havoc __utac_acc__Specification2_spec__2_#t~ret4#1, __utac_acc__Specification2_spec__2_#t~ret5#1, __utac_acc__Specification2_spec__2_~tmp~0#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification2_spec__2 } true; 797#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 798#L345-2 [2023-11-29 06:29:53,722 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:29:53,722 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2023-11-29 06:29:53,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:29:53,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33195288] [2023-11-29 06:29:53,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:29:53,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:29:53,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:29:53,735 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 06:29:53,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:29:53,748 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 06:29:53,749 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:29:53,749 INFO L85 PathProgramCache]: Analyzing trace with hash -751868762, now seen corresponding path program 1 times [2023-11-29 06:29:53,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:29:53,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075008622] [2023-11-29 06:29:53,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:29:53,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:29:53,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:29:53,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:29:53,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:29:53,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075008622] [2023-11-29 06:29:53,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075008622] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:29:53,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:29:53,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 06:29:53,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11993112] [2023-11-29 06:29:53,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:29:53,814 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-29 06:29:53,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:29:53,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:29:53,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:29:53,815 INFO L87 Difference]: Start difference. First operand 207 states and 266 transitions. cyclomatic complexity: 61 Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 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) [2023-11-29 06:29:53,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:29:53,933 INFO L93 Difference]: Finished difference Result 400 states and 506 transitions. [2023-11-29 06:29:53,933 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 400 states and 506 transitions. [2023-11-29 06:29:53,937 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 284 [2023-11-29 06:29:53,941 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 400 states to 400 states and 506 transitions. [2023-11-29 06:29:53,941 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 400 [2023-11-29 06:29:53,942 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 400 [2023-11-29 06:29:53,942 INFO L73 IsDeterministic]: Start isDeterministic. Operand 400 states and 506 transitions. [2023-11-29 06:29:53,944 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:29:53,945 INFO L218 hiAutomatonCegarLoop]: Abstraction has 400 states and 506 transitions. [2023-11-29 06:29:53,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states and 506 transitions. [2023-11-29 06:29:53,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 219. [2023-11-29 06:29:53,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 219 states have (on average 1.269406392694064) internal successors, (278), 218 states have internal predecessors, (278), 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) [2023-11-29 06:29:53,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 278 transitions. [2023-11-29 06:29:53,958 INFO L240 hiAutomatonCegarLoop]: Abstraction has 219 states and 278 transitions. [2023-11-29 06:29:53,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:29:53,960 INFO L428 stractBuchiCegarLoop]: Abstraction has 219 states and 278 transitions. [2023-11-29 06:29:53,960 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-29 06:29:53,960 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 219 states and 278 transitions. [2023-11-29 06:29:53,962 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 152 [2023-11-29 06:29:53,962 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 06:29:53,962 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 06:29:53,963 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:29:53,963 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] [2023-11-29 06:29:53,963 INFO L748 eck$LassoCheckResult]: Stem: 1363#$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);~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 1364#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret23#1, main_~retValue_acc~5#1, main_~tmp~5#1;havoc main_~retValue_acc~5#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 1357#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1358#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~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 1443#valid_product_returnLabel#1 main_#t~ret23#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret23#1;havoc main_#t~ret23#1; 1444#L485 assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 1428#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 1429#__utac_acc__Specification2_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet19#1, test_#t~nondet20#1, test_#t~nondet21#1, test_#t~nondet22#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1422#L345-2 [2023-11-29 06:29:53,964 INFO L750 eck$LassoCheckResult]: Loop: 1422#L345-2 assume !false; 1401#L346 assume test_~splverifierCounter~0#1 < 4; 1402#L347 havoc test_#t~nondet19#1;test_~tmp~4#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 1372#L355 assume !(0 != test_~tmp~4#1); 1373#L355-2 havoc test_#t~nondet20#1;test_~tmp___0~2#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; 1413#L365 assume !(0 != test_~tmp___0~2#1); 1314#L365-2 havoc test_#t~nondet21#1;test_~tmp___2~0#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; 1335#L375 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 1336#startSystem_returnLabel#1 assume { :end_inline_startSystem } true; 1354#L383-2 assume { :begin_inline_timeShift } true; 1323#L153 assume !(0 != ~pumpRunning~0); 1324#L153-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret8#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 1459#L211 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret7#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 1407#L185-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret18#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~3#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~4#1;havoc isHighWaterLevel_~tmp~3#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 1396#L583-1 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~8#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 1397#isHighWaterSensorDry_returnLabel#2 isHighWaterLevel_#t~ret18#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~3#1 := isHighWaterLevel_#t~ret18#1;havoc isHighWaterLevel_#t~ret18#1; 1476#L313-3 assume !(0 != isHighWaterLevel_~tmp~3#1);isHighWaterLevel_~tmp___0~1#1 := 1; 1362#L313-5 isHighWaterLevel_~retValue_acc~4#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1; 1375#isHighWaterLevel_returnLabel#2 processEnvironment__wrappee__highWaterSensor_#t~ret7#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret18#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~3#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret7#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret7#1; 1464#L189-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1376#processEnvironment__wrappee__base_returnLabel#3 assume { :end_inline_processEnvironment__wrappee__base } true; 1377#L185-3 havoc processEnvironment__wrappee__highWaterSensor_#t~ret7#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1461#L211-1 havoc processEnvironment_#t~ret8#1, processEnvironment_~tmp~2#1;assume { :end_inline_processEnvironment } true; 1368#L160-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret4#1, __utac_acc__Specification2_spec__2_#t~ret5#1, __utac_acc__Specification2_spec__2_~tmp~0#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~0#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 1369#isMethaneLevelCritical_returnLabel#2 __utac_acc__Specification2_spec__2_#t~ret4#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~0#1 := __utac_acc__Specification2_spec__2_#t~ret4#1;havoc __utac_acc__Specification2_spec__2_#t~ret4#1; 1350#L78 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0#1);~methAndRunningLastTime~0 := 0; 1352#L78-1 havoc __utac_acc__Specification2_spec__2_#t~ret4#1, __utac_acc__Specification2_spec__2_#t~ret5#1, __utac_acc__Specification2_spec__2_~tmp~0#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification2_spec__2 } true; 1421#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1422#L345-2 [2023-11-29 06:29:53,964 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:29:53,964 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2023-11-29 06:29:53,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:29:53,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898806340] [2023-11-29 06:29:53,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:29:53,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:29:53,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:29:53,975 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 06:29:53,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:29:53,985 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 06:29:53,986 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:29:53,986 INFO L85 PathProgramCache]: Analyzing trace with hash -1762986012, now seen corresponding path program 1 times [2023-11-29 06:29:53,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:29:53,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436438967] [2023-11-29 06:29:53,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:29:53,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:29:53,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:29:54,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:29:54,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:29:54,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436438967] [2023-11-29 06:29:54,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436438967] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:29:54,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:29:54,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 06:29:54,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354797721] [2023-11-29 06:29:54,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:29:54,045 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-29 06:29:54,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:29:54,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:29:54,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:29:54,046 INFO L87 Difference]: Start difference. First operand 219 states and 278 transitions. cyclomatic complexity: 61 Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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) [2023-11-29 06:29:54,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:29:54,205 INFO L93 Difference]: Finished difference Result 391 states and 491 transitions. [2023-11-29 06:29:54,205 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 391 states and 491 transitions. [2023-11-29 06:29:54,208 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 278 [2023-11-29 06:29:54,212 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 391 states to 391 states and 491 transitions. [2023-11-29 06:29:54,212 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 391 [2023-11-29 06:29:54,213 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 391 [2023-11-29 06:29:54,213 INFO L73 IsDeterministic]: Start isDeterministic. Operand 391 states and 491 transitions. [2023-11-29 06:29:54,214 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:29:54,214 INFO L218 hiAutomatonCegarLoop]: Abstraction has 391 states and 491 transitions. [2023-11-29 06:29:54,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states and 491 transitions. [2023-11-29 06:29:54,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 237. [2023-11-29 06:29:54,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 237 states have (on average 1.248945147679325) internal successors, (296), 236 states have internal predecessors, (296), 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) [2023-11-29 06:29:54,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 296 transitions. [2023-11-29 06:29:54,227 INFO L240 hiAutomatonCegarLoop]: Abstraction has 237 states and 296 transitions. [2023-11-29 06:29:54,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:29:54,228 INFO L428 stractBuchiCegarLoop]: Abstraction has 237 states and 296 transitions. [2023-11-29 06:29:54,228 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-11-29 06:29:54,229 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 237 states and 296 transitions. [2023-11-29 06:29:54,230 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 164 [2023-11-29 06:29:54,231 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 06:29:54,231 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 06:29:54,232 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:29:54,232 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] [2023-11-29 06:29:54,232 INFO L748 eck$LassoCheckResult]: Stem: 1983#$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);~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 1984#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret23#1, main_~retValue_acc~5#1, main_~tmp~5#1;havoc main_~retValue_acc~5#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 1977#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1978#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~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 2064#valid_product_returnLabel#1 main_#t~ret23#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret23#1;havoc main_#t~ret23#1; 2065#L485 assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 2049#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 2050#__utac_acc__Specification2_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet19#1, test_#t~nondet20#1, test_#t~nondet21#1, test_#t~nondet22#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2042#L345-2 [2023-11-29 06:29:54,233 INFO L750 eck$LassoCheckResult]: Loop: 2042#L345-2 assume !false; 2022#L346 assume test_~splverifierCounter~0#1 < 4; 2023#L347 havoc test_#t~nondet19#1;test_~tmp~4#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 1992#L355 assume !(0 != test_~tmp~4#1); 1993#L355-2 havoc test_#t~nondet20#1;test_~tmp___0~2#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; 2136#L365 assume !(0 != test_~tmp___0~2#1); 2133#L365-2 havoc test_#t~nondet21#1;test_~tmp___2~0#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; 2131#L375 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 2128#startSystem_returnLabel#1 assume { :end_inline_startSystem } true; 2126#L383-2 assume { :begin_inline_timeShift } true; 1944#L153 assume !(0 != ~pumpRunning~0); 1945#L153-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret8#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 2081#L211 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret7#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 2028#L185-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret18#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~3#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~4#1;havoc isHighWaterLevel_~tmp~3#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 2017#L583-1 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~8#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 2018#isHighWaterSensorDry_returnLabel#2 isHighWaterLevel_#t~ret18#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~3#1 := isHighWaterLevel_#t~ret18#1;havoc isHighWaterLevel_#t~ret18#1; 2119#L313-3 assume 0 != isHighWaterLevel_~tmp~3#1;isHighWaterLevel_~tmp___0~1#1 := 0; 1982#L313-5 isHighWaterLevel_~retValue_acc~4#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1; 2108#isHighWaterLevel_returnLabel#2 processEnvironment__wrappee__highWaterSensor_#t~ret7#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret18#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~3#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret7#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret7#1; 2105#L189-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1997#processEnvironment__wrappee__base_returnLabel#3 assume { :end_inline_processEnvironment__wrappee__base } true; 1998#L185-3 havoc processEnvironment__wrappee__highWaterSensor_#t~ret7#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 2083#L211-1 havoc processEnvironment_#t~ret8#1, processEnvironment_~tmp~2#1;assume { :end_inline_processEnvironment } true; 1988#L160-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret4#1, __utac_acc__Specification2_spec__2_#t~ret5#1, __utac_acc__Specification2_spec__2_~tmp~0#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~0#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 1989#isMethaneLevelCritical_returnLabel#2 __utac_acc__Specification2_spec__2_#t~ret4#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~0#1 := __utac_acc__Specification2_spec__2_#t~ret4#1;havoc __utac_acc__Specification2_spec__2_#t~ret4#1; 1970#L78 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0#1);~methAndRunningLastTime~0 := 0; 1972#L78-1 havoc __utac_acc__Specification2_spec__2_#t~ret4#1, __utac_acc__Specification2_spec__2_#t~ret5#1, __utac_acc__Specification2_spec__2_~tmp~0#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification2_spec__2 } true; 2041#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 2042#L345-2 [2023-11-29 06:29:54,233 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:29:54,233 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 5 times [2023-11-29 06:29:54,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:29:54,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283901493] [2023-11-29 06:29:54,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:29:54,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:29:54,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:29:54,243 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 06:29:54,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:29:54,252 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 06:29:54,253 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:29:54,253 INFO L85 PathProgramCache]: Analyzing trace with hash -2021151450, now seen corresponding path program 1 times [2023-11-29 06:29:54,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:29:54,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126353522] [2023-11-29 06:29:54,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:29:54,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:29:54,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:29:54,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:29:54,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:29:54,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126353522] [2023-11-29 06:29:54,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126353522] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:29:54,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:29:54,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 06:29:54,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202207757] [2023-11-29 06:29:54,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:29:54,343 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-29 06:29:54,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:29:54,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:29:54,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:29:54,344 INFO L87 Difference]: Start difference. First operand 237 states and 296 transitions. cyclomatic complexity: 61 Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 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) [2023-11-29 06:29:54,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:29:54,442 INFO L93 Difference]: Finished difference Result 388 states and 482 transitions. [2023-11-29 06:29:54,443 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 388 states and 482 transitions. [2023-11-29 06:29:54,446 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 276 [2023-11-29 06:29:54,448 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 388 states to 388 states and 482 transitions. [2023-11-29 06:29:54,449 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 388 [2023-11-29 06:29:54,449 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 388 [2023-11-29 06:29:54,449 INFO L73 IsDeterministic]: Start isDeterministic. Operand 388 states and 482 transitions. [2023-11-29 06:29:54,450 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:29:54,450 INFO L218 hiAutomatonCegarLoop]: Abstraction has 388 states and 482 transitions. [2023-11-29 06:29:54,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states and 482 transitions. [2023-11-29 06:29:54,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 237. [2023-11-29 06:29:54,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 237 states have (on average 1.2236286919831223) internal successors, (290), 236 states have internal predecessors, (290), 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) [2023-11-29 06:29:54,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 290 transitions. [2023-11-29 06:29:54,459 INFO L240 hiAutomatonCegarLoop]: Abstraction has 237 states and 290 transitions. [2023-11-29 06:29:54,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:29:54,461 INFO L428 stractBuchiCegarLoop]: Abstraction has 237 states and 290 transitions. [2023-11-29 06:29:54,461 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2023-11-29 06:29:54,461 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 237 states and 290 transitions. [2023-11-29 06:29:54,463 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 164 [2023-11-29 06:29:54,463 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 06:29:54,464 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 06:29:54,464 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:29:54,465 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] [2023-11-29 06:29:54,465 INFO L748 eck$LassoCheckResult]: Stem: 2616#$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);~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 2617#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret23#1, main_~retValue_acc~5#1, main_~tmp~5#1;havoc main_~retValue_acc~5#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 2610#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2611#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~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 2693#valid_product_returnLabel#1 main_#t~ret23#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret23#1;havoc main_#t~ret23#1; 2694#L485 assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 2679#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 2680#__utac_acc__Specification2_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet19#1, test_#t~nondet20#1, test_#t~nondet21#1, test_#t~nondet22#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2672#L345-2 [2023-11-29 06:29:54,465 INFO L750 eck$LassoCheckResult]: Loop: 2672#L345-2 assume !false; 2652#L346 assume test_~splverifierCounter~0#1 < 4; 2653#L347 havoc test_#t~nondet19#1;test_~tmp~4#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 2625#L355 assume !(0 != test_~tmp~4#1); 2626#L355-2 havoc test_#t~nondet20#1;test_~tmp___0~2#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; 2664#L365 assume !(0 != test_~tmp___0~2#1); 2569#L365-2 havoc test_#t~nondet21#1;test_~tmp___2~0#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; 2588#L375 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 2589#startSystem_returnLabel#1 assume { :end_inline_startSystem } true; 2607#L383-2 assume { :begin_inline_timeShift } true; 2578#L153 assume !(0 != ~pumpRunning~0); 2579#L153-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret8#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 2708#L211 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret7#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 2658#L185-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret18#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~3#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~4#1;havoc isHighWaterLevel_~tmp~3#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 2647#L583-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 2648#isHighWaterSensorDry_returnLabel#2 isHighWaterLevel_#t~ret18#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~3#1 := isHighWaterLevel_#t~ret18#1;havoc isHighWaterLevel_#t~ret18#1; 2739#L313-3 assume 0 != isHighWaterLevel_~tmp~3#1;isHighWaterLevel_~tmp___0~1#1 := 0; 2737#L313-5 isHighWaterLevel_~retValue_acc~4#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1; 2733#isHighWaterLevel_returnLabel#2 processEnvironment__wrappee__highWaterSensor_#t~ret7#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret18#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~3#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret7#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret7#1; 2730#L189-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2629#processEnvironment__wrappee__base_returnLabel#3 assume { :end_inline_processEnvironment__wrappee__base } true; 2630#L185-3 havoc processEnvironment__wrappee__highWaterSensor_#t~ret7#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 2710#L211-1 havoc processEnvironment_#t~ret8#1, processEnvironment_~tmp~2#1;assume { :end_inline_processEnvironment } true; 2621#L160-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret4#1, __utac_acc__Specification2_spec__2_#t~ret5#1, __utac_acc__Specification2_spec__2_~tmp~0#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~0#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 2622#isMethaneLevelCritical_returnLabel#2 __utac_acc__Specification2_spec__2_#t~ret4#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~0#1 := __utac_acc__Specification2_spec__2_#t~ret4#1;havoc __utac_acc__Specification2_spec__2_#t~ret4#1; 2604#L78 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0#1);~methAndRunningLastTime~0 := 0; 2606#L78-1 havoc __utac_acc__Specification2_spec__2_#t~ret4#1, __utac_acc__Specification2_spec__2_#t~ret5#1, __utac_acc__Specification2_spec__2_~tmp~0#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification2_spec__2 } true; 2671#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 2672#L345-2 [2023-11-29 06:29:54,465 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:29:54,466 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 6 times [2023-11-29 06:29:54,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:29:54,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116768636] [2023-11-29 06:29:54,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:29:54,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:29:54,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:29:54,475 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 06:29:54,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:29:54,485 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 06:29:54,486 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:29:54,486 INFO L85 PathProgramCache]: Analyzing trace with hash -1010034200, now seen corresponding path program 1 times [2023-11-29 06:29:54,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:29:54,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679232677] [2023-11-29 06:29:54,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:29:54,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:29:54,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:29:54,496 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 06:29:54,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:29:54,506 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 06:29:54,506 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:29:54,507 INFO L85 PathProgramCache]: Analyzing trace with hash -10963631, now seen corresponding path program 1 times [2023-11-29 06:29:54,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:29:54,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359900940] [2023-11-29 06:29:54,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:29:54,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:29:54,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:29:54,523 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 06:29:54,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:29:54,538 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 06:29:55,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:29:55,654 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 06:29:55,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:29:55,711 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 06:29:55 BoogieIcfgContainer [2023-11-29 06:29:55,712 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-29 06:29:55,712 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 06:29:55,712 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 06:29:55,713 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 06:29:55,713 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:29:53" (3/4) ... [2023-11-29 06:29:55,714 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2023-11-29 06:29:55,767 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e484d6-d2da-458f-bb8d-559850a8a7d1/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 06:29:55,767 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 06:29:55,768 INFO L158 Benchmark]: Toolchain (without parser) took 3792.20ms. Allocated memory was 127.9MB in the beginning and 155.2MB in the end (delta: 27.3MB). Free memory was 92.0MB in the beginning and 99.5MB in the end (delta: -7.5MB). Peak memory consumption was 22.3MB. Max. memory is 16.1GB. [2023-11-29 06:29:55,768 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 127.9MB. Free memory is still 100.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 06:29:55,769 INFO L158 Benchmark]: CACSL2BoogieTranslator took 398.83ms. Allocated memory is still 127.9MB. Free memory was 91.7MB in the beginning and 72.8MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-29 06:29:55,769 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.82ms. Allocated memory is still 127.9MB. Free memory was 72.8MB in the beginning and 69.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 06:29:55,769 INFO L158 Benchmark]: Boogie Preprocessor took 61.62ms. Allocated memory is still 127.9MB. Free memory was 69.7MB in the beginning and 66.2MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 06:29:55,770 INFO L158 Benchmark]: RCFGBuilder took 538.63ms. Allocated memory is still 127.9MB. Free memory was 66.2MB in the beginning and 88.2MB in the end (delta: -21.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-29 06:29:55,770 INFO L158 Benchmark]: BuchiAutomizer took 2674.10ms. Allocated memory was 127.9MB in the beginning and 155.2MB in the end (delta: 27.3MB). Free memory was 88.2MB in the beginning and 102.7MB in the end (delta: -14.5MB). Peak memory consumption was 11.8MB. Max. memory is 16.1GB. [2023-11-29 06:29:55,770 INFO L158 Benchmark]: Witness Printer took 55.16ms. Allocated memory is still 155.2MB. Free memory was 102.7MB in the beginning and 99.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 06:29:55,772 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 127.9MB. Free memory is still 100.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 398.83ms. Allocated memory is still 127.9MB. Free memory was 91.7MB in the beginning and 72.8MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.82ms. Allocated memory is still 127.9MB. Free memory was 72.8MB in the beginning and 69.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.62ms. Allocated memory is still 127.9MB. Free memory was 69.7MB in the beginning and 66.2MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 538.63ms. Allocated memory is still 127.9MB. Free memory was 66.2MB in the beginning and 88.2MB in the end (delta: -21.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * BuchiAutomizer took 2674.10ms. Allocated memory was 127.9MB in the beginning and 155.2MB in the end (delta: 27.3MB). Free memory was 88.2MB in the beginning and 102.7MB in the end (delta: -14.5MB). Peak memory consumption was 11.8MB. Max. memory is 16.1GB. * Witness Printer took 55.16ms. Allocated memory is still 155.2MB. Free memory was 102.7MB in the beginning and 99.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] - GenericResultAtLocation [Line: 58]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [58] - GenericResultAtLocation [Line: 99]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [99] - GenericResultAtLocation [Line: 137]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [137] - GenericResultAtLocation [Line: 331]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [331] - GenericResultAtLocation [Line: 401]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [401] - GenericResultAtLocation [Line: 498]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [498] - GenericResultAtLocation [Line: 593]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [593] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (5 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.5 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 237 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.5s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 1.8s. Construction of modules took 0.2s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 5. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 486 StatesRemovedByMinimization, 3 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, 819 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 819 mSDsluCounter, 2868 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1615 mSDsCounter, 73 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 304 IncrementalHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 73 mSolverCounterUnsat, 1253 mSDtfsCounter, 304 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI5 SFLT0 conc0 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: 345]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L61] int methAndRunningLastTime ; [L146] int pumpRunning = 0; [L147] int systemActive = 1; [L402] int cleanupTimeShifts = 4; [L500] int waterLevel = 1; [L501] int methaneLevelCritical = 0; [L763] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L476] int retValue_acc ; [L477] int tmp ; [L481] FCALL select_helpers() [L482] FCALL select_features() [L483] CALL, EXPR valid_product() [L129] int retValue_acc ; [L132] retValue_acc = 1 [L133] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L483] RET, EXPR valid_product() [L483] tmp = valid_product() [L485] COND TRUE \read(tmp) [L487] FCALL setup() [L488] CALL runTest() [L469] CALL __utac_acc__Specification2_spec__1() [L66] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L469] RET __utac_acc__Specification2_spec__1() [L470] CALL test() [L336] int splverifierCounter ; [L337] int tmp ; [L338] int tmp___0 ; [L339] int tmp___1 ; [L340] int tmp___2 ; [L343] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L345] COND TRUE 1 [L347] COND TRUE splverifierCounter < 4 [L353] tmp = __VERIFIER_nondet_int() [L355] COND FALSE !(\read(tmp)) [L363] tmp___0 = __VERIFIER_nondet_int() [L365] COND FALSE !(\read(tmp___0)) [L373] tmp___2 = __VERIFIER_nondet_int() [L375] COND TRUE \read(tmp___2) [L377] CALL startSystem() [L327] systemActive = 1 [L377] RET startSystem() [L390] CALL timeShift() [L153] COND FALSE !(\read(pumpRunning)) [L160] COND TRUE \read(systemActive) [L162] CALL processEnvironment() [L208] int tmp ; [L211] COND FALSE !(\read(pumpRunning)) [L226] CALL processEnvironment__wrappee__highWaterSensor() [L182] int tmp ; [L185] COND TRUE ! pumpRunning [L187] CALL, EXPR isHighWaterLevel() [L305] int retValue_acc ; [L306] int tmp ; [L307] int tmp___0 ; [L311] CALL, EXPR isHighWaterSensorDry() [L580] int retValue_acc ; [L583] COND TRUE waterLevel < 2 [L584] retValue_acc = 1 [L585] return (retValue_acc); [L311] RET, EXPR isHighWaterSensorDry() [L311] tmp = isHighWaterSensorDry() [L313] COND TRUE \read(tmp) [L314] tmp___0 = 0 [L318] retValue_acc = tmp___0 [L319] return (retValue_acc); [L187] RET, EXPR isHighWaterLevel() [L187] tmp = isHighWaterLevel() [L189] COND FALSE !(\read(tmp)) [L195] FCALL processEnvironment__wrappee__base() [L226] RET processEnvironment__wrappee__highWaterSensor() [L162] RET processEnvironment() [L168] CALL __utac_acc__Specification2_spec__2() [L71] int tmp ; [L72] int tmp___0 ; [L76] CALL, EXPR isMethaneLevelCritical() [L539] int retValue_acc ; [L542] retValue_acc = methaneLevelCritical [L543] return (retValue_acc); [L76] RET, EXPR isMethaneLevelCritical() [L76] tmp = isMethaneLevelCritical() [L78] COND FALSE !(\read(tmp)) [L94] methAndRunningLastTime = 0 [L168] RET __utac_acc__Specification2_spec__2() [L390] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 345]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L61] int methAndRunningLastTime ; [L146] int pumpRunning = 0; [L147] int systemActive = 1; [L402] int cleanupTimeShifts = 4; [L500] int waterLevel = 1; [L501] int methaneLevelCritical = 0; [L763] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L476] int retValue_acc ; [L477] int tmp ; [L481] FCALL select_helpers() [L482] FCALL select_features() [L483] CALL, EXPR valid_product() [L129] int retValue_acc ; [L132] retValue_acc = 1 [L133] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L483] RET, EXPR valid_product() [L483] tmp = valid_product() [L485] COND TRUE \read(tmp) [L487] FCALL setup() [L488] CALL runTest() [L469] CALL __utac_acc__Specification2_spec__1() [L66] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L469] RET __utac_acc__Specification2_spec__1() [L470] CALL test() [L336] int splverifierCounter ; [L337] int tmp ; [L338] int tmp___0 ; [L339] int tmp___1 ; [L340] int tmp___2 ; [L343] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L345] COND TRUE 1 [L347] COND TRUE splverifierCounter < 4 [L353] tmp = __VERIFIER_nondet_int() [L355] COND FALSE !(\read(tmp)) [L363] tmp___0 = __VERIFIER_nondet_int() [L365] COND FALSE !(\read(tmp___0)) [L373] tmp___2 = __VERIFIER_nondet_int() [L375] COND TRUE \read(tmp___2) [L377] CALL startSystem() [L327] systemActive = 1 [L377] RET startSystem() [L390] CALL timeShift() [L153] COND FALSE !(\read(pumpRunning)) [L160] COND TRUE \read(systemActive) [L162] CALL processEnvironment() [L208] int tmp ; [L211] COND FALSE !(\read(pumpRunning)) [L226] CALL processEnvironment__wrappee__highWaterSensor() [L182] int tmp ; [L185] COND TRUE ! pumpRunning [L187] CALL, EXPR isHighWaterLevel() [L305] int retValue_acc ; [L306] int tmp ; [L307] int tmp___0 ; [L311] CALL, EXPR isHighWaterSensorDry() [L580] int retValue_acc ; [L583] COND TRUE waterLevel < 2 [L584] retValue_acc = 1 [L585] return (retValue_acc); [L311] RET, EXPR isHighWaterSensorDry() [L311] tmp = isHighWaterSensorDry() [L313] COND TRUE \read(tmp) [L314] tmp___0 = 0 [L318] retValue_acc = tmp___0 [L319] return (retValue_acc); [L187] RET, EXPR isHighWaterLevel() [L187] tmp = isHighWaterLevel() [L189] COND FALSE !(\read(tmp)) [L195] FCALL processEnvironment__wrappee__base() [L226] RET processEnvironment__wrappee__highWaterSensor() [L162] RET processEnvironment() [L168] CALL __utac_acc__Specification2_spec__2() [L71] int tmp ; [L72] int tmp___0 ; [L76] CALL, EXPR isMethaneLevelCritical() [L539] int retValue_acc ; [L542] retValue_acc = methaneLevelCritical [L543] return (retValue_acc); [L76] RET, EXPR isMethaneLevelCritical() [L76] tmp = isMethaneLevelCritical() [L78] COND FALSE !(\read(tmp)) [L94] methAndRunningLastTime = 0 [L168] RET __utac_acc__Specification2_spec__2() [L390] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2023-11-29 06:29:55,808 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e484d6-d2da-458f-bb8d-559850a8a7d1/bin/uautomizer-verify-BQ2R08f2Ya/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)