./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product04.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_16fb2452-79c4-4de5-a3c4-5d5e6cb2750b/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fb2452-79c4-4de5-a3c4-5d5e6cb2750b/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fb2452-79c4-4de5-a3c4-5d5e6cb2750b/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fb2452-79c4-4de5-a3c4-5d5e6cb2750b/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product04.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fb2452-79c4-4de5-a3c4-5d5e6cb2750b/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fb2452-79c4-4de5-a3c4-5d5e6cb2750b/bin/uautomizer-verify-VRDe98Ueme --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b22026a332ccca8082c7769c107f506d3ca596d9fcaedb9dc78c497ca0c585ab --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 12:02:47,583 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 12:02:47,667 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fb2452-79c4-4de5-a3c4-5d5e6cb2750b/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-26 12:02:47,674 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 12:02:47,674 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 12:02:47,704 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 12:02:47,705 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 12:02:47,706 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 12:02:47,707 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 12:02:47,708 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 12:02:47,709 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 12:02:47,709 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 12:02:47,710 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 12:02:47,711 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-26 12:02:47,712 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-26 12:02:47,712 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-26 12:02:47,713 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-26 12:02:47,713 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-26 12:02:47,714 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-26 12:02:47,714 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 12:02:47,715 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-26 12:02:47,716 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 12:02:47,716 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 12:02:47,717 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 12:02:47,717 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 12:02:47,717 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-26 12:02:47,718 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-26 12:02:47,718 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-26 12:02:47,719 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 12:02:47,719 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 12:02:47,720 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 12:02:47,720 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-26 12:02:47,721 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 12:02:47,721 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 12:02:47,722 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 12:02:47,722 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 12:02:47,722 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 12:02:47,723 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-26 12:02:47,724 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_16fb2452-79c4-4de5-a3c4-5d5e6cb2750b/bin/uautomizer-verify-VRDe98Ueme/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fb2452-79c4-4de5-a3c4-5d5e6cb2750b/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b22026a332ccca8082c7769c107f506d3ca596d9fcaedb9dc78c497ca0c585ab [2023-11-26 12:02:47,971 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 12:02:48,021 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 12:02:48,025 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 12:02:48,026 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 12:02:48,027 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 12:02:48,029 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fb2452-79c4-4de5-a3c4-5d5e6cb2750b/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/product-lines/minepump_spec3_product04.cil.c [2023-11-26 12:02:51,202 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 12:02:51,471 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 12:02:51,472 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fb2452-79c4-4de5-a3c4-5d5e6cb2750b/sv-benchmarks/c/product-lines/minepump_spec3_product04.cil.c [2023-11-26 12:02:51,490 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fb2452-79c4-4de5-a3c4-5d5e6cb2750b/bin/uautomizer-verify-VRDe98Ueme/data/ea285e865/cf57cdc71bf647a78ef5f94fc362a2c8/FLAGa5bb34915 [2023-11-26 12:02:51,507 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fb2452-79c4-4de5-a3c4-5d5e6cb2750b/bin/uautomizer-verify-VRDe98Ueme/data/ea285e865/cf57cdc71bf647a78ef5f94fc362a2c8 [2023-11-26 12:02:51,509 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 12:02:51,511 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 12:02:51,512 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 12:02:51,513 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 12:02:51,517 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 12:02:51,518 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:02:51" (1/1) ... [2023-11-26 12:02:51,519 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53c10a96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:51, skipping insertion in model container [2023-11-26 12:02:51,520 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:02:51" (1/1) ... [2023-11-26 12:02:51,570 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 12:02:51,961 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:02:51,979 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 12:02:51,990 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [49] [2023-11-26 12:02:51,992 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [135] [2023-11-26 12:02:51,992 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [501] [2023-11-26 12:02:51,992 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [539] [2023-11-26 12:02:51,993 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [638] [2023-11-26 12:02:51,993 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [647] [2023-11-26 12:02:51,993 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [682] [2023-11-26 12:02:51,994 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [816] [2023-11-26 12:02:52,099 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:02:52,127 INFO L206 MainTranslator]: Completed translation [2023-11-26 12:02:52,128 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:52 WrapperNode [2023-11-26 12:02:52,128 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 12:02:52,130 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 12:02:52,130 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 12:02:52,131 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 12:02:52,140 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:52" (1/1) ... [2023-11-26 12:02:52,165 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:52" (1/1) ... [2023-11-26 12:02:52,213 INFO L138 Inliner]: procedures = 51, calls = 93, calls flagged for inlining = 46, calls inlined = 41, statements flattened = 271 [2023-11-26 12:02:52,214 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 12:02:52,214 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 12:02:52,215 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 12:02:52,215 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 12:02:52,227 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:52" (1/1) ... [2023-11-26 12:02:52,228 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:52" (1/1) ... [2023-11-26 12:02:52,244 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:52" (1/1) ... [2023-11-26 12:02:52,267 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-26 12:02:52,267 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:52" (1/1) ... [2023-11-26 12:02:52,267 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:52" (1/1) ... [2023-11-26 12:02:52,273 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:52" (1/1) ... [2023-11-26 12:02:52,278 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:52" (1/1) ... [2023-11-26 12:02:52,279 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:52" (1/1) ... [2023-11-26 12:02:52,281 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:52" (1/1) ... [2023-11-26 12:02:52,284 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 12:02:52,285 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 12:02:52,285 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 12:02:52,285 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 12:02:52,286 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:52" (1/1) ... [2023-11-26 12:02:52,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:02:52,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fb2452-79c4-4de5-a3c4-5d5e6cb2750b/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:02:52,316 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fb2452-79c4-4de5-a3c4-5d5e6cb2750b/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:02:52,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fb2452-79c4-4de5-a3c4-5d5e6cb2750b/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-26 12:02:52,358 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 12:02:52,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 12:02:52,358 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 12:02:52,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 12:02:52,435 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 12:02:52,438 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 12:02:52,852 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 12:02:52,864 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 12:02:52,864 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-26 12:02:52,866 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:02:52 BoogieIcfgContainer [2023-11-26 12:02:52,866 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 12:02:52,867 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-26 12:02:52,868 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-26 12:02:52,872 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-26 12:02:52,872 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-26 12:02:52,873 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 26.11 12:02:51" (1/3) ... [2023-11-26 12:02:52,874 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@30df050c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.11 12:02:52, skipping insertion in model container [2023-11-26 12:02:52,874 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-26 12:02:52,874 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:52" (2/3) ... [2023-11-26 12:02:52,875 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@30df050c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.11 12:02:52, skipping insertion in model container [2023-11-26 12:02:52,875 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-26 12:02:52,875 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:02:52" (3/3) ... [2023-11-26 12:02:52,877 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product04.cil.c [2023-11-26 12:02:52,944 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-26 12:02:52,945 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-26 12:02:52,945 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-26 12:02:52,945 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-26 12:02:52,946 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-26 12:02:52,946 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-26 12:02:52,946 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-26 12:02:52,947 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-26 12:02:52,952 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 89 states, 88 states have (on average 1.3636363636363635) internal successors, (120), 88 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:52,980 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 57 [2023-11-26 12:02:52,980 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 12:02:52,980 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 12:02:52,988 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:02:52,988 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:02:52,989 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-26 12:02:52,989 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 89 states, 88 states have (on average 1.3636363636363635) internal successors, (120), 88 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:52,997 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 57 [2023-11-26 12:02:52,998 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 12:02:52,998 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 12:02:52,999 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:02:52,999 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:02:53,004 INFO L748 eck$LassoCheckResult]: Stem: 37#$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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 50#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret33#1, main_~retValue_acc~7#1, main_~tmp~3#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 28#select_helpers_returnLabel#1true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 46#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~6#1;havoc valid_product_~retValue_acc~6#1;valid_product_~retValue_acc~6#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~6#1; 22#valid_product_returnLabel#1true main_#t~ret33#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~6#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret33#1;havoc main_#t~ret33#1; 65#L625true assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 5#setup_returnLabel#1true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet46#1, test_#t~nondet47#1, test_#t~nondet48#1, test_#t~nondet49#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 51#L827-2true [2023-11-26 12:02:53,005 INFO L750 eck$LassoCheckResult]: Loop: 51#L827-2true assume !false; 66#L828true assume test_~splverifierCounter~0#1 < 4; 12#L829true havoc test_#t~nondet46#1;test_~tmp~5#1 := test_#t~nondet46#1;havoc test_#t~nondet46#1; 56#L837true assume !(0 != test_~tmp~5#1); 71#L837-2true havoc test_#t~nondet47#1;test_~tmp___0~1#1 := test_#t~nondet47#1;havoc test_#t~nondet47#1; 49#L847true assume !(0 != test_~tmp___0~1#1); 79#L847-2true havoc test_#t~nondet48#1;test_~tmp___2~0#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1; 40#L857true assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet49#1;test_~tmp___1~1#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 42#L865true assume !(0 != test_~tmp___1~1#1); 33#L865-2true assume { :begin_inline_timeShift } true; 20#L694true assume !(0 != ~pumpRunning~0); 85#L694-2true assume !(0 != ~systemActive~0); 21#L701-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret34#1, __utac_acc__Specification3_spec__1_#t~ret35#1, __utac_acc__Specification3_spec__1_#t~ret36#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~4#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 67#isMethaneLevelCritical_returnLabel#1true __utac_acc__Specification3_spec__1_#t~ret34#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4#1 := __utac_acc__Specification3_spec__1_#t~ret34#1;havoc __utac_acc__Specification3_spec__1_#t~ret34#1; 30#L658true assume 0 != __utac_acc__Specification3_spec__1_~tmp~4#1; 45#L664-1true havoc __utac_acc__Specification3_spec__1_#t~ret34#1, __utac_acc__Specification3_spec__1_#t~ret35#1, __utac_acc__Specification3_spec__1_#t~ret36#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 78#timeShift_returnLabel#1true assume { :end_inline_timeShift } true; 51#L827-2true [2023-11-26 12:02:53,009 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:53,010 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2023-11-26 12:02:53,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:02:53,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256106607] [2023-11-26 12:02:53,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:53,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:02:53,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:02:53,125 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:02:53,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:02:53,164 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:02:53,167 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:53,168 INFO L85 PathProgramCache]: Analyzing trace with hash 522900897, now seen corresponding path program 1 times [2023-11-26 12:02:53,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:02:53,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076997717] [2023-11-26 12:02:53,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:53,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:02:53,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:02:53,181 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:02:53,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:02:53,192 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:02:53,194 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:53,194 INFO L85 PathProgramCache]: Analyzing trace with hash -408780707, now seen corresponding path program 1 times [2023-11-26 12:02:53,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:02:53,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94853614] [2023-11-26 12:02:53,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:53,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:02:53,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:53,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:02:53,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:02:53,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94853614] [2023-11-26 12:02:53,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94853614] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:02:53,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:02:53,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 12:02:53,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110840442] [2023-11-26 12:02:53,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:02:53,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:02:53,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 12:02:53,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-26 12:02:53,736 INFO L87 Difference]: Start difference. First operand has 89 states, 88 states have (on average 1.3636363636363635) internal successors, (120), 88 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:53,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:02:53,948 INFO L93 Difference]: Finished difference Result 303 states and 386 transitions. [2023-11-26 12:02:53,950 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 303 states and 386 transitions. [2023-11-26 12:02:53,969 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 194 [2023-11-26 12:02:53,982 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 303 states to 263 states and 346 transitions. [2023-11-26 12:02:53,984 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 263 [2023-11-26 12:02:53,987 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 263 [2023-11-26 12:02:53,988 INFO L73 IsDeterministic]: Start isDeterministic. Operand 263 states and 346 transitions. [2023-11-26 12:02:53,995 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:02:53,995 INFO L218 hiAutomatonCegarLoop]: Abstraction has 263 states and 346 transitions. [2023-11-26 12:02:54,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states and 346 transitions. [2023-11-26 12:02:54,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 131. [2023-11-26 12:02:54,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 131 states have (on average 1.3206106870229009) internal successors, (173), 130 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:54,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 173 transitions. [2023-11-26 12:02:54,050 INFO L240 hiAutomatonCegarLoop]: Abstraction has 131 states and 173 transitions. [2023-11-26 12:02:54,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 12:02:54,059 INFO L428 stractBuchiCegarLoop]: Abstraction has 131 states and 173 transitions. [2023-11-26 12:02:54,059 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-26 12:02:54,060 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 131 states and 173 transitions. [2023-11-26 12:02:54,062 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 95 [2023-11-26 12:02:54,063 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 12:02:54,063 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 12:02:54,064 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:02:54,064 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:02:54,064 INFO L748 eck$LassoCheckResult]: Stem: 460#$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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 461#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret33#1, main_~retValue_acc~7#1, main_~tmp~3#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 448#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 449#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~6#1;havoc valid_product_~retValue_acc~6#1;valid_product_~retValue_acc~6#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~6#1; 442#valid_product_returnLabel#1 main_#t~ret33#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~6#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret33#1;havoc main_#t~ret33#1; 443#L625 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 412#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet46#1, test_#t~nondet47#1, test_#t~nondet48#1, test_#t~nondet49#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 413#L827-2 [2023-11-26 12:02:54,065 INFO L750 eck$LassoCheckResult]: Loop: 413#L827-2 assume !false; 474#L828 assume test_~splverifierCounter~0#1 < 4; 425#L829 havoc test_#t~nondet46#1;test_~tmp~5#1 := test_#t~nondet46#1;havoc test_#t~nondet46#1; 426#L837 assume !(0 != test_~tmp~5#1); 475#L837-2 havoc test_#t~nondet47#1;test_~tmp___0~1#1 := test_#t~nondet47#1;havoc test_#t~nondet47#1; 472#L847 assume !(0 != test_~tmp___0~1#1); 473#L847-2 havoc test_#t~nondet48#1;test_~tmp___2~0#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1; 463#L857 assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet49#1;test_~tmp___1~1#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 464#L865 assume !(0 != test_~tmp___1~1#1); 456#L865-2 assume { :begin_inline_timeShift } true; 437#L694 assume !(0 != ~pumpRunning~0); 438#L694-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true; 444#processEnvironment_returnLabel#1 assume { :end_inline_processEnvironment } true; 440#L701-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret34#1, __utac_acc__Specification3_spec__1_#t~ret35#1, __utac_acc__Specification3_spec__1_#t~ret36#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~4#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 441#isMethaneLevelCritical_returnLabel#1 __utac_acc__Specification3_spec__1_#t~ret34#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4#1 := __utac_acc__Specification3_spec__1_#t~ret34#1;havoc __utac_acc__Specification3_spec__1_#t~ret34#1; 450#L658 assume 0 != __utac_acc__Specification3_spec__1_~tmp~4#1; 451#L664-1 havoc __utac_acc__Specification3_spec__1_#t~ret34#1, __utac_acc__Specification3_spec__1_#t~ret35#1, __utac_acc__Specification3_spec__1_#t~ret36#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 467#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 413#L827-2 [2023-11-26 12:02:54,066 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:54,066 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2023-11-26 12:02:54,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:02:54,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250705920] [2023-11-26 12:02:54,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:54,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:02:54,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:02:54,092 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:02:54,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:02:54,118 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:02:54,123 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:54,124 INFO L85 PathProgramCache]: Analyzing trace with hash -341466731, now seen corresponding path program 1 times [2023-11-26 12:02:54,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:02:54,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769331406] [2023-11-26 12:02:54,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:54,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:02:54,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:02:54,140 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:02:54,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:02:54,151 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:02:54,155 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:54,155 INFO L85 PathProgramCache]: Analyzing trace with hash 841174617, now seen corresponding path program 1 times [2023-11-26 12:02:54,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:02:54,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870130792] [2023-11-26 12:02:54,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:54,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:02:54,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:54,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:02:54,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:02:54,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870130792] [2023-11-26 12:02:54,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870130792] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:02:54,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:02:54,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 12:02:54,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869246271] [2023-11-26 12:02:54,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:02:54,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:02:54,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 12:02:54,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 12:02:54,384 INFO L87 Difference]: Start difference. First operand 131 states and 173 transitions. cyclomatic complexity: 45 Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:54,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:02:54,467 INFO L93 Difference]: Finished difference Result 327 states and 429 transitions. [2023-11-26 12:02:54,467 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 327 states and 429 transitions. [2023-11-26 12:02:54,471 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 244 [2023-11-26 12:02:54,475 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 327 states to 327 states and 429 transitions. [2023-11-26 12:02:54,475 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 327 [2023-11-26 12:02:54,476 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 327 [2023-11-26 12:02:54,476 INFO L73 IsDeterministic]: Start isDeterministic. Operand 327 states and 429 transitions. [2023-11-26 12:02:54,477 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:02:54,477 INFO L218 hiAutomatonCegarLoop]: Abstraction has 327 states and 429 transitions. [2023-11-26 12:02:54,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states and 429 transitions. [2023-11-26 12:02:54,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 255. [2023-11-26 12:02:54,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 255 states have (on average 1.2980392156862746) internal successors, (331), 254 states have internal predecessors, (331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:54,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 331 transitions. [2023-11-26 12:02:54,495 INFO L240 hiAutomatonCegarLoop]: Abstraction has 255 states and 331 transitions. [2023-11-26 12:02:54,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-26 12:02:54,496 INFO L428 stractBuchiCegarLoop]: Abstraction has 255 states and 331 transitions. [2023-11-26 12:02:54,497 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-26 12:02:54,497 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 255 states and 331 transitions. [2023-11-26 12:02:54,499 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 190 [2023-11-26 12:02:54,499 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 12:02:54,499 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 12:02:54,500 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:02:54,500 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] [2023-11-26 12:02:54,501 INFO L748 eck$LassoCheckResult]: Stem: 936#$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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 937#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret33#1, main_~retValue_acc~7#1, main_~tmp~3#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 923#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 924#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~6#1;havoc valid_product_~retValue_acc~6#1;valid_product_~retValue_acc~6#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~6#1; 916#valid_product_returnLabel#1 main_#t~ret33#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~6#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret33#1;havoc main_#t~ret33#1; 917#L625 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 884#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet46#1, test_#t~nondet47#1, test_#t~nondet48#1, test_#t~nondet49#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 885#L827-2 [2023-11-26 12:02:54,501 INFO L750 eck$LassoCheckResult]: Loop: 885#L827-2 assume !false; 952#L828 assume test_~splverifierCounter~0#1 < 4; 897#L829 havoc test_#t~nondet46#1;test_~tmp~5#1 := test_#t~nondet46#1;havoc test_#t~nondet46#1; 898#L837 assume !(0 != test_~tmp~5#1); 953#L837-2 havoc test_#t~nondet47#1;test_~tmp___0~1#1 := test_#t~nondet47#1;havoc test_#t~nondet47#1; 950#L847 assume !(0 != test_~tmp___0~1#1); 951#L847-2 havoc test_#t~nondet48#1;test_~tmp___2~0#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1; 977#L857 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 1125#startSystem_returnLabel#1 assume { :end_inline_startSystem } true; 932#L865-2 assume { :begin_inline_timeShift } true; 911#L694 assume !(0 != ~pumpRunning~0); 912#L694-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true; 981#processEnvironment_returnLabel#1 assume { :end_inline_processEnvironment } true; 1089#L701-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret34#1, __utac_acc__Specification3_spec__1_#t~ret35#1, __utac_acc__Specification3_spec__1_#t~ret36#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~4#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 1087#isMethaneLevelCritical_returnLabel#1 __utac_acc__Specification3_spec__1_#t~ret34#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4#1 := __utac_acc__Specification3_spec__1_#t~ret34#1;havoc __utac_acc__Specification3_spec__1_#t~ret34#1; 1085#L658 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~4#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 1083#getWaterLevel_returnLabel#1 __utac_acc__Specification3_spec__1_#t~ret35#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~0#1 := __utac_acc__Specification3_spec__1_#t~ret35#1;havoc __utac_acc__Specification3_spec__1_#t~ret35#1; 1079#L664 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0#1); 1075#L664-1 havoc __utac_acc__Specification3_spec__1_#t~ret34#1, __utac_acc__Specification3_spec__1_#t~ret35#1, __utac_acc__Specification3_spec__1_#t~ret36#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 976#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 885#L827-2 [2023-11-26 12:02:54,502 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:54,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2023-11-26 12:02:54,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:02:54,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322180168] [2023-11-26 12:02:54,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:54,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:02:54,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:02:54,511 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:02:54,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:02:54,519 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:02:54,520 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:54,520 INFO L85 PathProgramCache]: Analyzing trace with hash 1414267672, now seen corresponding path program 1 times [2023-11-26 12:02:54,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:02:54,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335624935] [2023-11-26 12:02:54,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:54,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:02:54,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:02:54,528 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:02:54,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:02:54,534 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:02:54,535 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:54,535 INFO L85 PathProgramCache]: Analyzing trace with hash -233730340, now seen corresponding path program 1 times [2023-11-26 12:02:54,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:02:54,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547682167] [2023-11-26 12:02:54,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:54,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:02:54,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:02:54,547 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:02:54,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:02:54,561 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:02:55,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:02:55,653 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:02:55,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:02:55,704 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.11 12:02:55 BoogieIcfgContainer [2023-11-26 12:02:55,704 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-26 12:02:55,705 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 12:02:55,705 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 12:02:55,705 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 12:02:55,705 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:02:52" (3/4) ... [2023-11-26 12:02:55,707 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2023-11-26 12:02:55,758 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fb2452-79c4-4de5-a3c4-5d5e6cb2750b/bin/uautomizer-verify-VRDe98Ueme/witness.graphml [2023-11-26 12:02:55,758 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 12:02:55,759 INFO L158 Benchmark]: Toolchain (without parser) took 4247.64ms. Allocated memory was 167.8MB in the beginning and 211.8MB in the end (delta: 44.0MB). Free memory was 120.6MB in the beginning and 172.7MB in the end (delta: -52.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 12:02:55,759 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 130.0MB. Free memory was 94.4MB in the beginning and 94.4MB in the end (delta: 31.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 12:02:55,759 INFO L158 Benchmark]: CACSL2BoogieTranslator took 616.26ms. Allocated memory is still 167.8MB. Free memory was 120.1MB in the beginning and 101.7MB in the end (delta: 18.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-26 12:02:55,760 INFO L158 Benchmark]: Boogie Procedure Inliner took 84.25ms. Allocated memory is still 167.8MB. Free memory was 101.2MB in the beginning and 99.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 12:02:55,760 INFO L158 Benchmark]: Boogie Preprocessor took 69.33ms. Allocated memory is still 167.8MB. Free memory was 99.1MB in the beginning and 96.2MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 12:02:55,761 INFO L158 Benchmark]: RCFGBuilder took 582.01ms. Allocated memory is still 167.8MB. Free memory was 96.2MB in the beginning and 80.8MB in the end (delta: 15.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-26 12:02:55,761 INFO L158 Benchmark]: BuchiAutomizer took 2836.58ms. Allocated memory was 167.8MB in the beginning and 211.8MB in the end (delta: 44.0MB). Free memory was 80.8MB in the beginning and 174.8MB in the end (delta: -94.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 12:02:55,762 INFO L158 Benchmark]: Witness Printer took 53.36ms. Allocated memory is still 211.8MB. Free memory was 174.8MB in the beginning and 172.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 12:02:55,764 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 130.0MB. Free memory was 94.4MB in the beginning and 94.4MB in the end (delta: 31.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 616.26ms. Allocated memory is still 167.8MB. Free memory was 120.1MB in the beginning and 101.7MB in the end (delta: 18.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 84.25ms. Allocated memory is still 167.8MB. Free memory was 101.2MB in the beginning and 99.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 69.33ms. Allocated memory is still 167.8MB. Free memory was 99.1MB in the beginning and 96.2MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 582.01ms. Allocated memory is still 167.8MB. Free memory was 96.2MB in the beginning and 80.8MB in the end (delta: 15.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * BuchiAutomizer took 2836.58ms. Allocated memory was 167.8MB in the beginning and 211.8MB in the end (delta: 44.0MB). Free memory was 80.8MB in the beginning and 174.8MB in the end (delta: -94.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 53.36ms. Allocated memory is still 211.8MB. Free memory was 174.8MB in the beginning and 172.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [49] - GenericResultAtLocation [Line: 135]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [135] - GenericResultAtLocation [Line: 501]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [501] - GenericResultAtLocation [Line: 539]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [539] - GenericResultAtLocation [Line: 638]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [638] - GenericResultAtLocation [Line: 647]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [647] - GenericResultAtLocation [Line: 682]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [682] - GenericResultAtLocation [Line: 816]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [816] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 255 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.7s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 204 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 665 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 665 mSDsluCounter, 1326 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1093 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 97 IncrementalHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 233 mSDtfsCounter, 97 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc2 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: 827]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L56] int waterLevel = 1; [L57] int methaneLevelCritical = 0; [L305] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L540] int cleanupTimeShifts = 4; [L687] int pumpRunning = 0; [L688] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L616] int retValue_acc ; [L617] int tmp ; [L621] FCALL select_helpers() [L622] FCALL select_features() [L623] CALL, EXPR valid_product() [L531] int retValue_acc ; [L534] retValue_acc = 1 [L535] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L623] RET, EXPR valid_product() [L623] tmp = valid_product() [L625] COND TRUE \read(tmp) [L627] FCALL setup() [L628] CALL runTest() [L610] CALL test() [L818] int splverifierCounter ; [L819] int tmp ; [L820] int tmp___0 ; [L821] int tmp___1 ; [L822] int tmp___2 ; [L825] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L827] COND TRUE 1 [L829] COND TRUE splverifierCounter < 4 [L835] tmp = __VERIFIER_nondet_int() [L837] COND FALSE !(\read(tmp)) [L845] tmp___0 = __VERIFIER_nondet_int() [L847] COND FALSE !(\read(tmp___0)) [L855] tmp___2 = __VERIFIER_nondet_int() [L857] COND TRUE \read(tmp___2) [L859] CALL startSystem() [L812] systemActive = 1 [L859] RET startSystem() [L874] CALL timeShift() [L694] COND FALSE !(\read(pumpRunning)) [L701] COND TRUE \read(systemActive) [L703] FCALL processEnvironment() [L709] CALL __utac_acc__Specification3_spec__1() [L650] int tmp ; [L651] int tmp___0 ; [L652] int tmp___1 ; [L656] CALL, EXPR isMethaneLevelCritical() [L95] int retValue_acc ; [L98] retValue_acc = methaneLevelCritical [L99] return (retValue_acc); [L656] RET, EXPR isMethaneLevelCritical() [L656] tmp = isMethaneLevelCritical() [L658] COND FALSE !(\read(tmp)) [L662] CALL, EXPR getWaterLevel() [L127] int retValue_acc ; [L130] retValue_acc = waterLevel [L131] return (retValue_acc); [L662] RET, EXPR getWaterLevel() [L662] tmp___0 = getWaterLevel() [L664] COND FALSE !(tmp___0 == 2) [L709] RET __utac_acc__Specification3_spec__1() [L874] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 827]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L56] int waterLevel = 1; [L57] int methaneLevelCritical = 0; [L305] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L540] int cleanupTimeShifts = 4; [L687] int pumpRunning = 0; [L688] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L616] int retValue_acc ; [L617] int tmp ; [L621] FCALL select_helpers() [L622] FCALL select_features() [L623] CALL, EXPR valid_product() [L531] int retValue_acc ; [L534] retValue_acc = 1 [L535] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L623] RET, EXPR valid_product() [L623] tmp = valid_product() [L625] COND TRUE \read(tmp) [L627] FCALL setup() [L628] CALL runTest() [L610] CALL test() [L818] int splverifierCounter ; [L819] int tmp ; [L820] int tmp___0 ; [L821] int tmp___1 ; [L822] int tmp___2 ; [L825] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L827] COND TRUE 1 [L829] COND TRUE splverifierCounter < 4 [L835] tmp = __VERIFIER_nondet_int() [L837] COND FALSE !(\read(tmp)) [L845] tmp___0 = __VERIFIER_nondet_int() [L847] COND FALSE !(\read(tmp___0)) [L855] tmp___2 = __VERIFIER_nondet_int() [L857] COND TRUE \read(tmp___2) [L859] CALL startSystem() [L812] systemActive = 1 [L859] RET startSystem() [L874] CALL timeShift() [L694] COND FALSE !(\read(pumpRunning)) [L701] COND TRUE \read(systemActive) [L703] FCALL processEnvironment() [L709] CALL __utac_acc__Specification3_spec__1() [L650] int tmp ; [L651] int tmp___0 ; [L652] int tmp___1 ; [L656] CALL, EXPR isMethaneLevelCritical() [L95] int retValue_acc ; [L98] retValue_acc = methaneLevelCritical [L99] return (retValue_acc); [L656] RET, EXPR isMethaneLevelCritical() [L656] tmp = isMethaneLevelCritical() [L658] COND FALSE !(\read(tmp)) [L662] CALL, EXPR getWaterLevel() [L127] int retValue_acc ; [L130] retValue_acc = waterLevel [L131] return (retValue_acc); [L662] RET, EXPR getWaterLevel() [L662] tmp___0 = getWaterLevel() [L664] COND FALSE !(tmp___0 == 2) [L709] RET __utac_acc__Specification3_spec__1() [L874] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2023-11-26 12:02:55,814 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fb2452-79c4-4de5-a3c4-5d5e6cb2750b/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)