./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product64.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea627a30-ce0d-4729-a293-3c1ad3d9a2a6/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea627a30-ce0d-4729-a293-3c1ad3d9a2a6/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_ea627a30-ce0d-4729-a293-3c1ad3d9a2a6/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea627a30-ce0d-4729-a293-3c1ad3d9a2a6/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product64.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea627a30-ce0d-4729-a293-3c1ad3d9a2a6/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_ea627a30-ce0d-4729-a293-3c1ad3d9a2a6/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 323b2112d56f35ec9fc5a7837411d8e54d2d46e3d8981d77e080eaf0dd99497b --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 12:05:22,807 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 12:05:22,902 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea627a30-ce0d-4729-a293-3c1ad3d9a2a6/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-26 12:05:22,910 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 12:05:22,910 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 12:05:22,957 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 12:05:22,958 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 12:05:22,959 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 12:05:22,960 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 12:05:22,968 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 12:05:22,970 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 12:05:22,970 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 12:05:22,971 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 12:05:22,974 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-26 12:05:22,974 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-26 12:05:22,975 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-26 12:05:22,975 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-26 12:05:22,976 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-26 12:05:22,976 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-26 12:05:22,977 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 12:05:22,977 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-26 12:05:22,978 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 12:05:22,978 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 12:05:22,979 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 12:05:22,979 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 12:05:22,980 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-26 12:05:22,980 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-26 12:05:22,981 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-26 12:05:22,981 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 12:05:22,982 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 12:05:22,983 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 12:05:22,984 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-26 12:05:22,984 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 12:05:22,984 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 12:05:22,984 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 12:05:22,985 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 12:05:22,985 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 12:05:22,986 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-26 12:05:22,986 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_ea627a30-ce0d-4729-a293-3c1ad3d9a2a6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea627a30-ce0d-4729-a293-3c1ad3d9a2a6/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 323b2112d56f35ec9fc5a7837411d8e54d2d46e3d8981d77e080eaf0dd99497b [2023-11-26 12:05:23,316 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 12:05:23,378 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 12:05:23,382 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 12:05:23,385 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 12:05:23,387 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 12:05:23,389 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea627a30-ce0d-4729-a293-3c1ad3d9a2a6/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/product-lines/minepump_spec5_product64.cil.c [2023-11-26 12:05:26,715 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 12:05:27,022 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 12:05:27,023 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea627a30-ce0d-4729-a293-3c1ad3d9a2a6/sv-benchmarks/c/product-lines/minepump_spec5_product64.cil.c [2023-11-26 12:05:27,040 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea627a30-ce0d-4729-a293-3c1ad3d9a2a6/bin/uautomizer-verify-VRDe98Ueme/data/e90d215b5/34e1723b6a824f819440f4159ff71791/FLAGa98d2bfa9 [2023-11-26 12:05:27,056 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea627a30-ce0d-4729-a293-3c1ad3d9a2a6/bin/uautomizer-verify-VRDe98Ueme/data/e90d215b5/34e1723b6a824f819440f4159ff71791 [2023-11-26 12:05:27,059 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 12:05:27,061 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 12:05:27,063 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 12:05:27,063 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 12:05:27,069 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 12:05:27,070 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:05:27" (1/1) ... [2023-11-26 12:05:27,072 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26e4c0c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:27, skipping insertion in model container [2023-11-26 12:05:27,072 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:05:27" (1/1) ... [2023-11-26 12:05:27,126 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 12:05:27,506 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:05:27,539 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 12:05:27,551 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [49] [2023-11-26 12:05:27,553 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [101] [2023-11-26 12:05:27,554 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [176] [2023-11-26 12:05:27,554 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [450] [2023-11-26 12:05:27,554 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [553] [2023-11-26 12:05:27,555 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [653] [2023-11-26 12:05:27,555 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [662] [2023-11-26 12:05:27,555 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [697] [2023-11-26 12:05:27,676 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:05:27,701 INFO L206 MainTranslator]: Completed translation [2023-11-26 12:05:27,701 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:27 WrapperNode [2023-11-26 12:05:27,701 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 12:05:27,702 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 12:05:27,703 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 12:05:27,703 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 12:05:27,712 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:27" (1/1) ... [2023-11-26 12:05:27,730 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:27" (1/1) ... [2023-11-26 12:05:27,823 INFO L138 Inliner]: procedures = 61, calls = 111, calls flagged for inlining = 64, calls inlined = 186, statements flattened = 1253 [2023-11-26 12:05:27,823 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 12:05:27,824 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 12:05:27,824 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 12:05:27,825 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 12:05:27,839 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:27" (1/1) ... [2023-11-26 12:05:27,839 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:27" (1/1) ... [2023-11-26 12:05:27,847 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:27" (1/1) ... [2023-11-26 12:05:27,873 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 12:05:27,874 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:27" (1/1) ... [2023-11-26 12:05:27,874 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:27" (1/1) ... [2023-11-26 12:05:27,898 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:27" (1/1) ... [2023-11-26 12:05:27,916 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:27" (1/1) ... [2023-11-26 12:05:27,920 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:27" (1/1) ... [2023-11-26 12:05:27,925 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:27" (1/1) ... [2023-11-26 12:05:27,933 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 12:05:27,934 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 12:05:27,935 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 12:05:27,935 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 12:05:27,936 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:27" (1/1) ... [2023-11-26 12:05:27,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:05:27,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea627a30-ce0d-4729-a293-3c1ad3d9a2a6/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:05:27,990 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea627a30-ce0d-4729-a293-3c1ad3d9a2a6/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:05:28,041 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea627a30-ce0d-4729-a293-3c1ad3d9a2a6/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-26 12:05:28,067 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 12:05:28,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 12:05:28,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 12:05:28,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 12:05:28,221 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 12:05:28,224 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 12:05:29,215 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 12:05:29,247 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 12:05:29,249 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-26 12:05:29,252 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:05:29 BoogieIcfgContainer [2023-11-26 12:05:29,252 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 12:05:29,253 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-26 12:05:29,254 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-26 12:05:29,258 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-26 12:05:29,259 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-26 12:05:29,259 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 26.11 12:05:27" (1/3) ... [2023-11-26 12:05:29,262 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@dd969ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.11 12:05:29, skipping insertion in model container [2023-11-26 12:05:29,262 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-26 12:05:29,263 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:27" (2/3) ... [2023-11-26 12:05:29,265 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@dd969ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.11 12:05:29, skipping insertion in model container [2023-11-26 12:05:29,266 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-26 12:05:29,266 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:05:29" (3/3) ... [2023-11-26 12:05:29,267 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product64.cil.c [2023-11-26 12:05:29,369 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-26 12:05:29,369 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-26 12:05:29,369 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-26 12:05:29,369 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-26 12:05:29,370 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-26 12:05:29,370 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-26 12:05:29,370 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-26 12:05:29,370 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-26 12:05:29,376 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 336 states, 335 states have (on average 1.346268656716418) internal successors, (451), 335 states have internal predecessors, (451), 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 12:05:29,418 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 221 [2023-11-26 12:05:29,418 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 12:05:29,419 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 12:05:29,427 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:05:29,428 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] [2023-11-26 12:05:29,428 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-26 12:05:29,429 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 336 states, 335 states have (on average 1.346268656716418) internal successors, (451), 335 states have internal predecessors, (451), 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 12:05:29,445 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 221 [2023-11-26 12:05:29,445 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 12:05:29,445 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 12:05:29,447 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:05:29,447 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] [2023-11-26 12:05:29,453 INFO L748 eck$LassoCheckResult]: Stem: 184#$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);~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 199#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret31#1, main_~retValue_acc~8#1, main_~tmp~8#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 24#select_helpers_returnLabel#1true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 293#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~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 108#valid_product_returnLabel#1true main_#t~ret31#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret31#1;havoc main_#t~ret31#1; 30#L640true assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 82#setup_returnLabel#1true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 316#__utac_acc__Specification5_spec__1_returnLabel#1true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet7#1, test_#t~nondet8#1, test_#t~nondet9#1, test_#t~nondet10#1, test_~splverifierCounter~0#1, test_~tmp~1#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~1#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 69#L118-2true [2023-11-26 12:05:29,454 INFO L750 eck$LassoCheckResult]: Loop: 69#L118-2true assume !false; 318#L119true assume test_~splverifierCounter~0#1 < 4; 210#L120true havoc test_#t~nondet7#1;test_~tmp~1#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; 226#L128true assume !(0 != test_~tmp~1#1); 337#L128-2true havoc test_#t~nondet8#1;test_~tmp___0~1#1 := test_#t~nondet8#1;havoc test_#t~nondet8#1; 239#L138true assume !(0 != test_~tmp___0~1#1); 278#L138-2true havoc test_#t~nondet9#1;test_~tmp___2~0#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1; 29#L148true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 62#startSystem_returnLabel#1true assume { :end_inline_startSystem } true; 194#L156-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret4#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 307#isPumpRunning_returnLabel#1true __utac_acc__Specification5_spec__2_#t~ret4#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret4#1;havoc __utac_acc__Specification5_spec__2_#t~ret4#1; 264#__utac_acc__Specification5_spec__2_returnLabel#1true havoc __utac_acc__Specification5_spec__2_#t~ret4#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true; 124#L195true assume !(0 != ~pumpRunning~0); 88#L195-2true assume !(0 != ~systemActive~0); 121#L202-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret5#1, __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~0#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; 236#getWaterLevel_returnLabel#1true __utac_acc__Specification5_spec__3_#t~ret5#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0#1 := __utac_acc__Specification5_spec__3_#t~ret5#1;havoc __utac_acc__Specification5_spec__3_#t~ret5#1; 159#L80true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0#1); 310#L80-1true havoc __utac_acc__Specification5_spec__3_#t~ret5#1, __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true; 237#timeShift_returnLabel#1true assume { :end_inline_timeShift } true; 69#L118-2true [2023-11-26 12:05:29,460 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:05:29,460 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2023-11-26 12:05:29,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:05:29,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952188303] [2023-11-26 12:05:29,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:05:29,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:05:29,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:05:29,569 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:05:29,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:05:29,607 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:05:29,610 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:05:29,610 INFO L85 PathProgramCache]: Analyzing trace with hash 483878189, now seen corresponding path program 1 times [2023-11-26 12:05:29,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:05:29,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130285236] [2023-11-26 12:05:29,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:05:29,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:05:29,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:05:29,700 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 12:05:29,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:05:29,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130285236] [2023-11-26 12:05:29,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130285236] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:05:29,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:05:29,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:05:29,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009115100] [2023-11-26 12:05:29,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:05:29,707 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-26 12:05:29,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:05:29,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:05:29,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:05:29,743 INFO L87 Difference]: Start difference. First operand has 336 states, 335 states have (on average 1.346268656716418) internal successors, (451), 335 states have internal predecessors, (451), 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 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:05:29,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:05:29,828 INFO L93 Difference]: Finished difference Result 650 states and 862 transitions. [2023-11-26 12:05:29,829 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 650 states and 862 transitions. [2023-11-26 12:05:29,844 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 428 [2023-11-26 12:05:29,857 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 650 states to 630 states and 841 transitions. [2023-11-26 12:05:29,858 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 630 [2023-11-26 12:05:29,861 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 630 [2023-11-26 12:05:29,862 INFO L73 IsDeterministic]: Start isDeterministic. Operand 630 states and 841 transitions. [2023-11-26 12:05:29,866 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:05:29,869 INFO L218 hiAutomatonCegarLoop]: Abstraction has 630 states and 841 transitions. [2023-11-26 12:05:29,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states and 841 transitions. [2023-11-26 12:05:29,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 627. [2023-11-26 12:05:29,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 627 states, 627 states have (on average 1.3349282296650717) internal successors, (837), 626 states have internal predecessors, (837), 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 12:05:29,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 627 states to 627 states and 837 transitions. [2023-11-26 12:05:29,936 INFO L240 hiAutomatonCegarLoop]: Abstraction has 627 states and 837 transitions. [2023-11-26 12:05:29,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:05:29,946 INFO L428 stractBuchiCegarLoop]: Abstraction has 627 states and 837 transitions. [2023-11-26 12:05:29,946 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-26 12:05:29,946 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 627 states and 837 transitions. [2023-11-26 12:05:29,951 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 425 [2023-11-26 12:05:29,952 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 12:05:29,952 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 12:05:29,953 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:05:29,953 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] [2023-11-26 12:05:29,953 INFO L748 eck$LassoCheckResult]: Stem: 1265#$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);~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 1266#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret31#1, main_~retValue_acc~8#1, main_~tmp~8#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 1042#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1043#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~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 1192#valid_product_returnLabel#1 main_#t~ret31#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret31#1;havoc main_#t~ret31#1; 1053#L640 assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 1054#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 1151#__utac_acc__Specification5_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet7#1, test_#t~nondet8#1, test_#t~nondet9#1, test_#t~nondet10#1, test_~splverifierCounter~0#1, test_~tmp~1#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~1#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1128#L118-2 [2023-11-26 12:05:29,954 INFO L750 eck$LassoCheckResult]: Loop: 1128#L118-2 assume !false; 1129#L119 assume test_~splverifierCounter~0#1 < 4; 1402#L120 havoc test_#t~nondet7#1;test_~tmp~1#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; 1546#L128 assume !(0 != test_~tmp~1#1); 1543#L128-2 havoc test_#t~nondet8#1;test_~tmp___0~1#1 := test_#t~nondet8#1;havoc test_#t~nondet8#1; 1540#L138 assume !(0 != test_~tmp___0~1#1); 1537#L138-2 havoc test_#t~nondet9#1;test_~tmp___2~0#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1; 1535#L148 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 1051#startSystem_returnLabel#1 assume { :end_inline_startSystem } true; 1117#L156-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret4#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 1330#isPumpRunning_returnLabel#1 __utac_acc__Specification5_spec__2_#t~ret4#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret4#1;havoc __utac_acc__Specification5_spec__2_#t~ret4#1; 1318#__utac_acc__Specification5_spec__2_returnLabel#1 havoc __utac_acc__Specification5_spec__2_#t~ret4#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true; 1209#L195 assume !(0 != ~pumpRunning~0); 1163#L195-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret13#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1; 1124#L279 assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret15#1, isMethaneAlarm_~retValue_acc~0#1;havoc isMethaneAlarm_~retValue_acc~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;isMethaneLevelCritical_~retValue_acc~4#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; 1126#isMethaneLevelCritical_returnLabel#1 isMethaneAlarm_#t~ret15#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~0#1 := isMethaneAlarm_#t~ret15#1;havoc isMethaneAlarm_#t~ret15#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~0#1; 1331#isMethaneAlarm_returnLabel#1 processEnvironment_#t~ret13#1 := isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret15#1, isMethaneAlarm_~retValue_acc~0#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~4#1 := processEnvironment_#t~ret13#1;havoc processEnvironment_#t~ret13#1; 1322#L283 assume 0 != processEnvironment_~tmp~4#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; 1143#deactivatePump_returnLabel#2 assume { :end_inline_deactivatePump } true; 1037#L279-1 havoc processEnvironment_#t~ret13#1, processEnvironment_~tmp~4#1;assume { :end_inline_processEnvironment } true; 1206#L202-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret5#1, __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~0#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; 1207#getWaterLevel_returnLabel#1 __utac_acc__Specification5_spec__3_#t~ret5#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0#1 := __utac_acc__Specification5_spec__3_#t~ret5#1;havoc __utac_acc__Specification5_spec__3_#t~ret5#1; 1299#L80 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0#1); 1332#L80-1 havoc __utac_acc__Specification5_spec__3_#t~ret5#1, __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true; 1300#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1128#L118-2 [2023-11-26 12:05:29,954 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:05:29,955 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2023-11-26 12:05:29,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:05:29,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431227674] [2023-11-26 12:05:29,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:05:29,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:05:29,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:05:29,996 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:05:30,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:05:30,022 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:05:30,023 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:05:30,023 INFO L85 PathProgramCache]: Analyzing trace with hash -459022570, now seen corresponding path program 1 times [2023-11-26 12:05:30,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:05:30,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210824972] [2023-11-26 12:05:30,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:05:30,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:05:30,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:05:30,061 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 12:05:30,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:05:30,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210824972] [2023-11-26 12:05:30,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210824972] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:05:30,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:05:30,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:05:30,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108622884] [2023-11-26 12:05:30,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:05:30,063 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-26 12:05:30,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:05:30,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:05:30,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:05:30,064 INFO L87 Difference]: Start difference. First operand 627 states and 837 transitions. cyclomatic complexity: 213 Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 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 12:05:30,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:05:30,188 INFO L93 Difference]: Finished difference Result 661 states and 840 transitions. [2023-11-26 12:05:30,189 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 661 states and 840 transitions. [2023-11-26 12:05:30,195 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 459 [2023-11-26 12:05:30,203 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 661 states to 661 states and 840 transitions. [2023-11-26 12:05:30,204 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 661 [2023-11-26 12:05:30,205 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 661 [2023-11-26 12:05:30,205 INFO L73 IsDeterministic]: Start isDeterministic. Operand 661 states and 840 transitions. [2023-11-26 12:05:30,208 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:05:30,208 INFO L218 hiAutomatonCegarLoop]: Abstraction has 661 states and 840 transitions. [2023-11-26 12:05:30,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 661 states and 840 transitions. [2023-11-26 12:05:30,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 661 to 661. [2023-11-26 12:05:30,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 661 states, 661 states have (on average 1.2708018154311649) internal successors, (840), 660 states have internal predecessors, (840), 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 12:05:30,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 840 transitions. [2023-11-26 12:05:30,259 INFO L240 hiAutomatonCegarLoop]: Abstraction has 661 states and 840 transitions. [2023-11-26 12:05:30,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:05:30,261 INFO L428 stractBuchiCegarLoop]: Abstraction has 661 states and 840 transitions. [2023-11-26 12:05:30,262 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-26 12:05:30,263 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 661 states and 840 transitions. [2023-11-26 12:05:30,273 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 459 [2023-11-26 12:05:30,274 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 12:05:30,274 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 12:05:30,275 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:05:30,276 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:05:30,276 INFO L748 eck$LassoCheckResult]: Stem: 2511#$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);~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 2512#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret31#1, main_~retValue_acc~8#1, main_~tmp~8#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 2316#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2317#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~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 2432#valid_product_returnLabel#1 main_#t~ret31#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret31#1;havoc main_#t~ret31#1; 2327#L640 assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 2328#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 2400#__utac_acc__Specification5_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet7#1, test_#t~nondet8#1, test_#t~nondet9#1, test_#t~nondet10#1, test_~splverifierCounter~0#1, test_~tmp~1#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~1#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2387#L118-2 [2023-11-26 12:05:30,276 INFO L750 eck$LassoCheckResult]: Loop: 2387#L118-2 assume !false; 2388#L119 assume test_~splverifierCounter~0#1 < 4; 2614#L120 havoc test_#t~nondet7#1;test_~tmp~1#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; 2549#L128 assume !(0 != test_~tmp~1#1); 2522#L128-2 havoc test_#t~nondet8#1;test_~tmp___0~1#1 := test_#t~nondet8#1;havoc test_#t~nondet8#1; 2565#L138 assume !(0 != test_~tmp___0~1#1); 2566#L138-2 havoc test_#t~nondet9#1;test_~tmp___2~0#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1; 2324#L148 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 2325#startSystem_returnLabel#1 assume { :end_inline_startSystem } true; 2382#L156-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret4#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 2607#isPumpRunning_returnLabel#1 __utac_acc__Specification5_spec__2_#t~ret4#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret4#1;havoc __utac_acc__Specification5_spec__2_#t~ret4#1; 2608#__utac_acc__Specification5_spec__2_returnLabel#1 havoc __utac_acc__Specification5_spec__2_#t~ret4#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true; 2448#L195 assume !(0 != ~pumpRunning~0); 2410#L195-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret13#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1; 2383#L279 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret12#1, processEnvironment__wrappee__methaneQuery_~tmp~3#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~3#1; 2384#L253-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret11#1, processEnvironment__wrappee__highWaterSensor_~tmp~2#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2#1; 2569#L227-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret24#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~6#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;havoc isHighWaterSensorDry_~retValue_acc~6#1; 2570#L534-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; 2592#isHighWaterSensorDry_returnLabel#4 isHighWaterLevel_#t~ret24#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret24#1;havoc isHighWaterLevel_#t~ret24#1; 2543#L398-9 assume 0 != isHighWaterLevel_~tmp~6#1;isHighWaterLevel_~tmp___0~2#1 := 0; 2544#L398-11 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 2529#isHighWaterLevel_returnLabel#4 processEnvironment__wrappee__highWaterSensor_#t~ret11#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret24#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~2#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~2#1 := processEnvironment__wrappee__highWaterSensor_#t~ret11#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret11#1; 2353#L231-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~2#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2355#processEnvironment__wrappee__base_returnLabel#7 assume { :end_inline_processEnvironment__wrappee__base } true; 2449#L227-7 havoc processEnvironment__wrappee__highWaterSensor_#t~ret11#1, processEnvironment__wrappee__highWaterSensor_~tmp~2#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 2465#L253-3 havoc processEnvironment__wrappee__methaneQuery_#t~ret12#1, processEnvironment__wrappee__methaneQuery_~tmp~3#1;assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 2315#L279-1 havoc processEnvironment_#t~ret13#1, processEnvironment_~tmp~4#1;assume { :end_inline_processEnvironment } true; 2619#L202-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret5#1, __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~0#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; 2560#getWaterLevel_returnLabel#1 __utac_acc__Specification5_spec__3_#t~ret5#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0#1 := __utac_acc__Specification5_spec__3_#t~ret5#1;havoc __utac_acc__Specification5_spec__3_#t~ret5#1; 2561#L80 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0#1); 2759#L80-1 havoc __utac_acc__Specification5_spec__3_#t~ret5#1, __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true; 2562#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 2387#L118-2 [2023-11-26 12:05:30,277 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:05:30,277 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2023-11-26 12:05:30,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:05:30,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121003571] [2023-11-26 12:05:30,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:05:30,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:05:30,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:05:30,312 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:05:30,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:05:30,336 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:05:30,338 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:05:30,338 INFO L85 PathProgramCache]: Analyzing trace with hash -2103479536, now seen corresponding path program 1 times [2023-11-26 12:05:30,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:05:30,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851198032] [2023-11-26 12:05:30,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:05:30,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:05:30,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:05:30,525 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 12:05:30,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:05:30,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851198032] [2023-11-26 12:05:30,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851198032] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:05:30,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:05:30,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 12:05:30,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614720684] [2023-11-26 12:05:30,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:05:30,527 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-26 12:05:30,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:05:30,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 12:05:30,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 12:05:30,528 INFO L87 Difference]: Start difference. First operand 661 states and 840 transitions. cyclomatic complexity: 182 Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 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 12:05:30,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:05:30,823 INFO L93 Difference]: Finished difference Result 2286 states and 2884 transitions. [2023-11-26 12:05:30,823 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2286 states and 2884 transitions. [2023-11-26 12:05:30,844 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 1563 [2023-11-26 12:05:30,863 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2286 states to 2286 states and 2884 transitions. [2023-11-26 12:05:30,863 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 2286 [2023-11-26 12:05:30,865 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 2286 [2023-11-26 12:05:30,865 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2286 states and 2884 transitions. [2023-11-26 12:05:30,869 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:05:30,869 INFO L218 hiAutomatonCegarLoop]: Abstraction has 2286 states and 2884 transitions. [2023-11-26 12:05:30,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2286 states and 2884 transitions. [2023-11-26 12:05:30,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2286 to 1308. [2023-11-26 12:05:30,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1308 states, 1308 states have (on average 1.2599388379204892) internal successors, (1648), 1307 states have internal predecessors, (1648), 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 12:05:30,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1308 states to 1308 states and 1648 transitions. [2023-11-26 12:05:30,905 INFO L240 hiAutomatonCegarLoop]: Abstraction has 1308 states and 1648 transitions. [2023-11-26 12:05:30,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-26 12:05:30,907 INFO L428 stractBuchiCegarLoop]: Abstraction has 1308 states and 1648 transitions. [2023-11-26 12:05:30,907 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-26 12:05:30,907 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1308 states and 1648 transitions. [2023-11-26 12:05:30,915 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 914 [2023-11-26 12:05:30,915 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 12:05:30,915 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 12:05:30,917 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:05:30,917 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:05:30,918 INFO L748 eck$LassoCheckResult]: Stem: 5472#$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);~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 5473#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret31#1, main_~retValue_acc~8#1, main_~tmp~8#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 5276#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 5277#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~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 5401#valid_product_returnLabel#1 main_#t~ret31#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret31#1;havoc main_#t~ret31#1; 5287#L640 assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 5288#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 5366#__utac_acc__Specification5_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet7#1, test_#t~nondet8#1, test_#t~nondet9#1, test_#t~nondet10#1, test_~splverifierCounter~0#1, test_~tmp~1#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~1#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 5555#L118-2 [2023-11-26 12:05:30,918 INFO L750 eck$LassoCheckResult]: Loop: 5555#L118-2 assume !false; 5960#L119 assume test_~splverifierCounter~0#1 < 4; 5953#L120 havoc test_#t~nondet7#1;test_~tmp~1#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; 5950#L128 assume !(0 != test_~tmp~1#1); 5562#L128-2 havoc test_#t~nondet8#1;test_~tmp___0~1#1 := test_#t~nondet8#1;havoc test_#t~nondet8#1; 5515#L138 assume !(0 != test_~tmp___0~1#1); 5516#L138-2 havoc test_#t~nondet9#1;test_~tmp___2~0#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1; 5537#L148 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 5285#startSystem_returnLabel#1 assume { :end_inline_startSystem } true; 5347#L156-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret4#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 5993#isPumpRunning_returnLabel#1 __utac_acc__Specification5_spec__2_#t~ret4#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret4#1;havoc __utac_acc__Specification5_spec__2_#t~ret4#1; 5992#__utac_acc__Specification5_spec__2_returnLabel#1 havoc __utac_acc__Specification5_spec__2_#t~ret4#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true; 5991#L195 assume !(0 != ~pumpRunning~0); 5628#L195-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret13#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1; 5350#L279 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret12#1, processEnvironment__wrappee__methaneQuery_~tmp~3#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~3#1; 5351#L253-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret11#1, processEnvironment__wrappee__highWaterSensor_~tmp~2#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2#1; 5800#L227-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret24#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~6#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;havoc isHighWaterSensorDry_~retValue_acc~6#1; 5735#L534-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; 5731#isHighWaterSensorDry_returnLabel#4 isHighWaterLevel_#t~ret24#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret24#1;havoc isHighWaterLevel_#t~ret24#1; 5729#L398-9 assume 0 != isHighWaterLevel_~tmp~6#1;isHighWaterLevel_~tmp___0~2#1 := 0; 5727#L398-11 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 5724#isHighWaterLevel_returnLabel#4 processEnvironment__wrappee__highWaterSensor_#t~ret11#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret24#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~2#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~2#1 := processEnvironment__wrappee__highWaterSensor_#t~ret11#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret11#1; 5720#L231-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~2#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 5721#processEnvironment__wrappee__base_returnLabel#7 assume { :end_inline_processEnvironment__wrappee__base } true; 5983#L227-7 havoc processEnvironment__wrappee__highWaterSensor_#t~ret11#1, processEnvironment__wrappee__highWaterSensor_~tmp~2#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 5976#L253-3 havoc processEnvironment__wrappee__methaneQuery_#t~ret12#1, processEnvironment__wrappee__methaneQuery_~tmp~3#1;assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 5975#L279-1 havoc processEnvironment_#t~ret13#1, processEnvironment_~tmp~4#1;assume { :end_inline_processEnvironment } true; 5974#L202-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret5#1, __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~0#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; 5973#getWaterLevel_returnLabel#1 __utac_acc__Specification5_spec__3_#t~ret5#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0#1 := __utac_acc__Specification5_spec__3_#t~ret5#1;havoc __utac_acc__Specification5_spec__3_#t~ret5#1; 5972#L80 assume 2 != __utac_acc__Specification5_spec__3_~tmp~0#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 5971#isPumpRunning_returnLabel#2 __utac_acc__Specification5_spec__3_#t~ret6#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~0#1 := __utac_acc__Specification5_spec__3_#t~ret6#1;havoc __utac_acc__Specification5_spec__3_#t~ret6#1; 5969#L84 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0#1); 5968#L80-1 havoc __utac_acc__Specification5_spec__3_#t~ret5#1, __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true; 5967#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 5555#L118-2 [2023-11-26 12:05:30,919 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:05:30,919 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2023-11-26 12:05:30,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:05:30,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491808085] [2023-11-26 12:05:30,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:05:30,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:05:30,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:05:30,947 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:05:30,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:05:30,956 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:05:30,968 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:05:30,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1464765035, now seen corresponding path program 1 times [2023-11-26 12:05:30,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:05:30,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554223763] [2023-11-26 12:05:30,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:05:30,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:05:30,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:05:30,977 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:05:30,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:05:30,987 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:05:30,988 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:05:30,988 INFO L85 PathProgramCache]: Analyzing trace with hash -769051884, now seen corresponding path program 1 times [2023-11-26 12:05:30,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:05:30,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402300196] [2023-11-26 12:05:30,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:05:30,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:05:31,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:05:31,002 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:05:31,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:05:31,019 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:05:32,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:05:32,287 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:05:32,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:05:32,383 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.11 12:05:32 BoogieIcfgContainer [2023-11-26 12:05:32,383 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-26 12:05:32,384 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 12:05:32,384 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 12:05:32,384 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 12:05:32,385 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:05:29" (3/4) ... [2023-11-26 12:05:32,386 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2023-11-26 12:05:32,466 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea627a30-ce0d-4729-a293-3c1ad3d9a2a6/bin/uautomizer-verify-VRDe98Ueme/witness.graphml [2023-11-26 12:05:32,466 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 12:05:32,467 INFO L158 Benchmark]: Toolchain (without parser) took 5405.70ms. Allocated memory was 174.1MB in the beginning and 226.5MB in the end (delta: 52.4MB). Free memory was 135.0MB in the beginning and 75.6MB in the end (delta: 59.4MB). Peak memory consumption was 113.6MB. Max. memory is 16.1GB. [2023-11-26 12:05:32,467 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 174.1MB. Free memory is still 150.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 12:05:32,467 INFO L158 Benchmark]: CACSL2BoogieTranslator took 638.97ms. Allocated memory is still 174.1MB. Free memory was 134.6MB in the beginning and 115.0MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-26 12:05:32,468 INFO L158 Benchmark]: Boogie Procedure Inliner took 121.31ms. Allocated memory is still 174.1MB. Free memory was 115.0MB in the beginning and 109.9MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-26 12:05:32,468 INFO L158 Benchmark]: Boogie Preprocessor took 109.33ms. Allocated memory is still 174.1MB. Free memory was 109.9MB in the beginning and 103.9MB in the end (delta: 6.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-26 12:05:32,469 INFO L158 Benchmark]: RCFGBuilder took 1318.06ms. Allocated memory is still 174.1MB. Free memory was 103.9MB in the beginning and 132.8MB in the end (delta: -28.9MB). Peak memory consumption was 42.0MB. Max. memory is 16.1GB. [2023-11-26 12:05:32,469 INFO L158 Benchmark]: BuchiAutomizer took 3130.31ms. Allocated memory was 174.1MB in the beginning and 226.5MB in the end (delta: 52.4MB). Free memory was 132.8MB in the beginning and 78.7MB in the end (delta: 54.1MB). Peak memory consumption was 105.2MB. Max. memory is 16.1GB. [2023-11-26 12:05:32,470 INFO L158 Benchmark]: Witness Printer took 81.93ms. Allocated memory is still 226.5MB. Free memory was 78.7MB in the beginning and 75.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 12:05:32,472 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 174.1MB. Free memory is still 150.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 638.97ms. Allocated memory is still 174.1MB. Free memory was 134.6MB in the beginning and 115.0MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 121.31ms. Allocated memory is still 174.1MB. Free memory was 115.0MB in the beginning and 109.9MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 109.33ms. Allocated memory is still 174.1MB. Free memory was 109.9MB in the beginning and 103.9MB in the end (delta: 6.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1318.06ms. Allocated memory is still 174.1MB. Free memory was 103.9MB in the beginning and 132.8MB in the end (delta: -28.9MB). Peak memory consumption was 42.0MB. Max. memory is 16.1GB. * BuchiAutomizer took 3130.31ms. Allocated memory was 174.1MB in the beginning and 226.5MB in the end (delta: 52.4MB). Free memory was 132.8MB in the beginning and 78.7MB in the end (delta: 54.1MB). Peak memory consumption was 105.2MB. Max. memory is 16.1GB. * Witness Printer took 81.93ms. Allocated memory is still 226.5MB. Free memory was 78.7MB in the beginning and 75.6MB 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,"Specification5_spec.i","") [49] - GenericResultAtLocation [Line: 101]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [101] - GenericResultAtLocation [Line: 176]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [176] - GenericResultAtLocation [Line: 450]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [450] - GenericResultAtLocation [Line: 553]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [553] - GenericResultAtLocation [Line: 653]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [653] - GenericResultAtLocation [Line: 662]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [662] - GenericResultAtLocation [Line: 697]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [697] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 1308 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.9s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 2.0s. Construction of modules took 0.2s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 981 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, 1553 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1553 mSDsluCounter, 3463 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2053 mSDsCounter, 63 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 244 IncrementalHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 63 mSolverCounterUnsat, 1410 mSDtfsCounter, 244 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI3 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: 118]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L53] int switchedOnBeforeTS ; [L185] int pumpRunning = 0; [L186] int systemActive = 1; [L451] int waterLevel = 1; [L452] int methaneLevelCritical = 0; [L554] int cleanupTimeShifts = 4; [L867] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L631] int retValue_acc ; [L632] int tmp ; [L636] FCALL select_helpers() [L637] FCALL select_features() [L638] CALL, EXPR valid_product() [L689] int retValue_acc ; [L692] retValue_acc = 1 [L693] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L638] RET, EXPR valid_product() [L638] tmp = valid_product() [L640] COND TRUE \read(tmp) [L642] FCALL setup() [L643] CALL runTest() [L621] CALL __utac_acc__Specification5_spec__1() [L58] switchedOnBeforeTS = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L621] RET __utac_acc__Specification5_spec__1() [L622] CALL test() [L109] int splverifierCounter ; [L110] int tmp ; [L111] int tmp___0 ; [L112] int tmp___1 ; [L113] int tmp___2 ; [L116] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] Loop: [L118] COND TRUE 1 [L120] COND TRUE splverifierCounter < 4 [L126] tmp = __VERIFIER_nondet_int() [L128] COND FALSE !(\read(tmp)) [L136] tmp___0 = __VERIFIER_nondet_int() [L138] COND FALSE !(\read(tmp___0)) [L146] tmp___2 = __VERIFIER_nondet_int() [L148] COND TRUE \read(tmp___2) [L150] CALL startSystem() [L446] systemActive = 1 [L150] RET startSystem() [L165] CALL timeShift() [L193] CALL __utac_acc__Specification5_spec__2() [L67] CALL, EXPR isPumpRunning() [L345] int retValue_acc ; [L348] retValue_acc = pumpRunning [L349] return (retValue_acc); [L67] RET, EXPR isPumpRunning() [L67] switchedOnBeforeTS = isPumpRunning() [L193] RET __utac_acc__Specification5_spec__2() [L195] COND FALSE !(\read(pumpRunning)) [L202] COND TRUE \read(systemActive) [L204] CALL processEnvironment() [L276] int tmp ; [L279] COND FALSE !(\read(pumpRunning)) [L294] CALL processEnvironment__wrappee__methaneQuery() [L250] int tmp ; [L253] COND FALSE !(\read(pumpRunning)) [L268] CALL processEnvironment__wrappee__highWaterSensor() [L224] int tmp ; [L227] COND TRUE ! pumpRunning [L229] CALL, EXPR isHighWaterLevel() [L390] int retValue_acc ; [L391] int tmp ; [L392] int tmp___0 ; [L396] CALL, EXPR isHighWaterSensorDry() [L531] int retValue_acc ; [L534] COND TRUE waterLevel < 2 [L535] retValue_acc = 1 [L536] return (retValue_acc); [L396] RET, EXPR isHighWaterSensorDry() [L396] tmp = isHighWaterSensorDry() [L398] COND TRUE \read(tmp) [L399] tmp___0 = 0 [L403] retValue_acc = tmp___0 [L404] return (retValue_acc); [L229] RET, EXPR isHighWaterLevel() [L229] tmp = isHighWaterLevel() [L231] COND FALSE !(\read(tmp)) [L237] FCALL processEnvironment__wrappee__base() [L268] RET processEnvironment__wrappee__highWaterSensor() [L294] RET processEnvironment__wrappee__methaneQuery() [L204] RET processEnvironment() [L210] CALL __utac_acc__Specification5_spec__3() [L73] int tmp ; [L74] int tmp___0 ; [L78] CALL, EXPR getWaterLevel() [L522] int retValue_acc ; [L525] retValue_acc = waterLevel [L526] return (retValue_acc); [L78] RET, EXPR getWaterLevel() [L78] tmp = getWaterLevel() [L80] COND TRUE tmp != 2 [L82] CALL, EXPR isPumpRunning() [L345] int retValue_acc ; [L348] retValue_acc = pumpRunning [L349] return (retValue_acc); [L82] RET, EXPR isPumpRunning() [L82] tmp___0 = isPumpRunning() [L84] COND FALSE !(\read(tmp___0)) [L210] RET __utac_acc__Specification5_spec__3() [L165] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 118]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L53] int switchedOnBeforeTS ; [L185] int pumpRunning = 0; [L186] int systemActive = 1; [L451] int waterLevel = 1; [L452] int methaneLevelCritical = 0; [L554] int cleanupTimeShifts = 4; [L867] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L631] int retValue_acc ; [L632] int tmp ; [L636] FCALL select_helpers() [L637] FCALL select_features() [L638] CALL, EXPR valid_product() [L689] int retValue_acc ; [L692] retValue_acc = 1 [L693] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L638] RET, EXPR valid_product() [L638] tmp = valid_product() [L640] COND TRUE \read(tmp) [L642] FCALL setup() [L643] CALL runTest() [L621] CALL __utac_acc__Specification5_spec__1() [L58] switchedOnBeforeTS = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L621] RET __utac_acc__Specification5_spec__1() [L622] CALL test() [L109] int splverifierCounter ; [L110] int tmp ; [L111] int tmp___0 ; [L112] int tmp___1 ; [L113] int tmp___2 ; [L116] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] Loop: [L118] COND TRUE 1 [L120] COND TRUE splverifierCounter < 4 [L126] tmp = __VERIFIER_nondet_int() [L128] COND FALSE !(\read(tmp)) [L136] tmp___0 = __VERIFIER_nondet_int() [L138] COND FALSE !(\read(tmp___0)) [L146] tmp___2 = __VERIFIER_nondet_int() [L148] COND TRUE \read(tmp___2) [L150] CALL startSystem() [L446] systemActive = 1 [L150] RET startSystem() [L165] CALL timeShift() [L193] CALL __utac_acc__Specification5_spec__2() [L67] CALL, EXPR isPumpRunning() [L345] int retValue_acc ; [L348] retValue_acc = pumpRunning [L349] return (retValue_acc); [L67] RET, EXPR isPumpRunning() [L67] switchedOnBeforeTS = isPumpRunning() [L193] RET __utac_acc__Specification5_spec__2() [L195] COND FALSE !(\read(pumpRunning)) [L202] COND TRUE \read(systemActive) [L204] CALL processEnvironment() [L276] int tmp ; [L279] COND FALSE !(\read(pumpRunning)) [L294] CALL processEnvironment__wrappee__methaneQuery() [L250] int tmp ; [L253] COND FALSE !(\read(pumpRunning)) [L268] CALL processEnvironment__wrappee__highWaterSensor() [L224] int tmp ; [L227] COND TRUE ! pumpRunning [L229] CALL, EXPR isHighWaterLevel() [L390] int retValue_acc ; [L391] int tmp ; [L392] int tmp___0 ; [L396] CALL, EXPR isHighWaterSensorDry() [L531] int retValue_acc ; [L534] COND TRUE waterLevel < 2 [L535] retValue_acc = 1 [L536] return (retValue_acc); [L396] RET, EXPR isHighWaterSensorDry() [L396] tmp = isHighWaterSensorDry() [L398] COND TRUE \read(tmp) [L399] tmp___0 = 0 [L403] retValue_acc = tmp___0 [L404] return (retValue_acc); [L229] RET, EXPR isHighWaterLevel() [L229] tmp = isHighWaterLevel() [L231] COND FALSE !(\read(tmp)) [L237] FCALL processEnvironment__wrappee__base() [L268] RET processEnvironment__wrappee__highWaterSensor() [L294] RET processEnvironment__wrappee__methaneQuery() [L204] RET processEnvironment() [L210] CALL __utac_acc__Specification5_spec__3() [L73] int tmp ; [L74] int tmp___0 ; [L78] CALL, EXPR getWaterLevel() [L522] int retValue_acc ; [L525] retValue_acc = waterLevel [L526] return (retValue_acc); [L78] RET, EXPR getWaterLevel() [L78] tmp = getWaterLevel() [L80] COND TRUE tmp != 2 [L82] CALL, EXPR isPumpRunning() [L345] int retValue_acc ; [L348] retValue_acc = pumpRunning [L349] return (retValue_acc); [L82] RET, EXPR isPumpRunning() [L82] tmp___0 = isPumpRunning() [L84] COND FALSE !(\read(tmp___0)) [L210] RET __utac_acc__Specification5_spec__3() [L165] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2023-11-26 12:05:32,544 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea627a30-ce0d-4729-a293-3c1ad3d9a2a6/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)