./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product23.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d99f9e4d-1ff7-4f26-ba2d-c6098c365bdd/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d99f9e4d-1ff7-4f26-ba2d-c6098c365bdd/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d99f9e4d-1ff7-4f26-ba2d-c6098c365bdd/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d99f9e4d-1ff7-4f26-ba2d-c6098c365bdd/bin/uautomizer-verify-bycVGegfSx/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product23.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d99f9e4d-1ff7-4f26-ba2d-c6098c365bdd/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d99f9e4d-1ff7-4f26-ba2d-c6098c365bdd/bin/uautomizer-verify-bycVGegfSx --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 3fa2925374831266c365e02bbdeeca981bf102eec792ab5e5349fa193f0e7273 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:20:36,726 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:20:36,871 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d99f9e4d-1ff7-4f26-ba2d-c6098c365bdd/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-21 22:20:36,881 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:20:36,883 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:20:36,925 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:20:36,927 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:20:36,928 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:20:36,929 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:20:36,935 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:20:36,936 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:20:36,937 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:20:36,937 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:20:36,940 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-21 22:20:36,940 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-21 22:20:36,941 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-21 22:20:36,941 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-21 22:20:36,942 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-21 22:20:36,942 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-21 22:20:36,943 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:20:36,943 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-21 22:20:36,944 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:20:36,944 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:20:36,945 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:20:36,945 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:20:36,946 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-21 22:20:36,946 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-21 22:20:36,947 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-21 22:20:36,947 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:20:36,948 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:20:36,949 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:20:36,950 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-21 22:20:36,950 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:20:36,950 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:20:36,951 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:20:36,951 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:20:36,951 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:20:36,952 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-21 22:20:36,952 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_d99f9e4d-1ff7-4f26-ba2d-c6098c365bdd/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d99f9e4d-1ff7-4f26-ba2d-c6098c365bdd/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3fa2925374831266c365e02bbdeeca981bf102eec792ab5e5349fa193f0e7273 [2023-11-21 22:20:37,259 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:20:37,309 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:20:37,312 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:20:37,313 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:20:37,314 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:20:37,315 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d99f9e4d-1ff7-4f26-ba2d-c6098c365bdd/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/product-lines/minepump_spec5_product23.cil.c [2023-11-21 22:20:40,883 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:20:41,234 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:20:41,235 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d99f9e4d-1ff7-4f26-ba2d-c6098c365bdd/sv-benchmarks/c/product-lines/minepump_spec5_product23.cil.c [2023-11-21 22:20:41,253 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d99f9e4d-1ff7-4f26-ba2d-c6098c365bdd/bin/uautomizer-verify-bycVGegfSx/data/eccf1611b/0cacdecff8e74899a8427d0862017ad1/FLAG20ba07663 [2023-11-21 22:20:41,271 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d99f9e4d-1ff7-4f26-ba2d-c6098c365bdd/bin/uautomizer-verify-bycVGegfSx/data/eccf1611b/0cacdecff8e74899a8427d0862017ad1 [2023-11-21 22:20:41,275 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:20:41,277 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:20:41,278 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:20:41,279 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:20:41,286 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:20:41,287 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:20:41" (1/1) ... [2023-11-21 22:20:41,288 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@204f601a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:41, skipping insertion in model container [2023-11-21 22:20:41,288 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:20:41" (1/1) ... [2023-11-21 22:20:41,382 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:20:41,715 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:20:41,751 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:20:41,764 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [49] [2023-11-21 22:20:41,780 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [415] [2023-11-21 22:20:41,780 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [424] [2023-11-21 22:20:41,781 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [520] [2023-11-21 22:20:41,781 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [624] [2023-11-21 22:20:41,781 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [826] [2023-11-21 22:20:41,782 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [893] [2023-11-21 22:20:41,782 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [928] [2023-11-21 22:20:41,909 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:20:41,955 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:20:41,956 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:41 WrapperNode [2023-11-21 22:20:41,956 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:20:41,957 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:20:41,958 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:20:41,958 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:20:41,967 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:41" (1/1) ... [2023-11-21 22:20:41,987 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:41" (1/1) ... [2023-11-21 22:20:42,040 INFO L138 Inliner]: procedures = 56, calls = 103, calls flagged for inlining = 56, calls inlined = 89, statements flattened = 554 [2023-11-21 22:20:42,040 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:20:42,041 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:20:42,042 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:20:42,042 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:20:42,056 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:41" (1/1) ... [2023-11-21 22:20:42,057 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:41" (1/1) ... [2023-11-21 22:20:42,062 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:41" (1/1) ... [2023-11-21 22:20:42,081 INFO L187 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-21 22:20:42,081 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:41" (1/1) ... [2023-11-21 22:20:42,082 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:41" (1/1) ... [2023-11-21 22:20:42,096 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:41" (1/1) ... [2023-11-21 22:20:42,109 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:41" (1/1) ... [2023-11-21 22:20:42,114 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:41" (1/1) ... [2023-11-21 22:20:42,118 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:41" (1/1) ... [2023-11-21 22:20:42,123 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:20:42,125 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:20:42,125 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:20:42,125 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:20:42,126 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:41" (1/1) ... [2023-11-21 22:20:42,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:20:42,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d99f9e4d-1ff7-4f26-ba2d-c6098c365bdd/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:20:42,193 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d99f9e4d-1ff7-4f26-ba2d-c6098c365bdd/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:20:42,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d99f9e4d-1ff7-4f26-ba2d-c6098c365bdd/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-21 22:20:42,248 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:20:42,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 22:20:42,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:20:42,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:20:42,412 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:20:42,418 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:20:43,014 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:20:43,063 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:20:43,063 INFO L308 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-21 22:20:43,065 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:20:43 BoogieIcfgContainer [2023-11-21 22:20:43,065 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:20:43,067 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-21 22:20:43,067 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-21 22:20:43,087 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-21 22:20:43,109 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-21 22:20:43,109 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.11 10:20:41" (1/3) ... [2023-11-21 22:20:43,111 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@22c6aee5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 10:20:43, skipping insertion in model container [2023-11-21 22:20:43,111 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-21 22:20:43,111 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:41" (2/3) ... [2023-11-21 22:20:43,112 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@22c6aee5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 10:20:43, skipping insertion in model container [2023-11-21 22:20:43,112 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-21 22:20:43,112 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:20:43" (3/3) ... [2023-11-21 22:20:43,113 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product23.cil.c [2023-11-21 22:20:43,200 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-21 22:20:43,200 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-21 22:20:43,200 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-21 22:20:43,200 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-21 22:20:43,201 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-21 22:20:43,201 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-21 22:20:43,201 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-21 22:20:43,201 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-21 22:20:43,208 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 167 states, 166 states have (on average 1.3373493975903614) internal successors, (222), 166 states have internal predecessors, (222), 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) [2023-11-21 22:20:43,242 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 108 [2023-11-21 22:20:43,242 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 22:20:43,242 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 22:20:43,252 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:20:43,252 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:20:43,252 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-21 22:20:43,254 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 167 states, 166 states have (on average 1.3373493975903614) internal successors, (222), 166 states have internal predecessors, (222), 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) [2023-11-21 22:20:43,266 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 108 [2023-11-21 22:20:43,267 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 22:20:43,267 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 22:20:43,268 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:20:43,268 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:20:43,275 INFO L748 eck$LassoCheckResult]: Stem: 35#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0; 48#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret32#1, main_~retValue_acc~6#1, main_~tmp~3#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 30#select_helpers_returnLabel#1true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 141#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~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 123#valid_product_returnLabel#1true main_#t~ret32#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret32#1;havoc main_#t~ret32#1; 56#L611true assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 93#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; 154#__utac_acc__Specification5_spec__1_returnLabel#1true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet45#1, test_#t~nondet46#1, test_#t~nondet47#1, test_#t~nondet48#1, test_~splverifierCounter~0#1, test_~tmp~7#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~7#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 161#L837-2true [2023-11-21 22:20:43,276 INFO L750 eck$LassoCheckResult]: Loop: 161#L837-2true assume !false; 38#L838true assume test_~splverifierCounter~0#1 < 4; 36#L839true havoc test_#t~nondet45#1;test_~tmp~7#1 := test_#t~nondet45#1;havoc test_#t~nondet45#1; 142#L847true assume !(0 != test_~tmp~7#1); 81#L847-2true havoc test_#t~nondet46#1;test_~tmp___0~1#1 := test_#t~nondet46#1;havoc test_#t~nondet46#1; 133#L857true assume !(0 != test_~tmp___0~1#1); 102#L857-2true havoc test_#t~nondet47#1;test_~tmp___2~0#1 := test_#t~nondet47#1;havoc test_#t~nondet47#1; 145#L867true assume 0 != test_~tmp___2~0#1; 165#L873-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret50#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~8#1;havoc isPumpRunning_~retValue_acc~8#1;isPumpRunning_~retValue_acc~8#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~8#1; 151#isPumpRunning_returnLabel#1true __utac_acc__Specification5_spec__2_#t~ret50#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~8#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret50#1;havoc __utac_acc__Specification5_spec__2_#t~ret50#1; 108#__utac_acc__Specification5_spec__2_returnLabel#1true havoc __utac_acc__Specification5_spec__2_#t~ret50#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true; 50#L641true assume !(0 != ~pumpRunning~0); 140#L641-2true assume !(0 != ~systemActive~0); 120#L648-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_~tmp~8#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~8#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;havoc getWaterLevel_~retValue_acc~4#1;getWaterLevel_~retValue_acc~4#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~4#1; 79#getWaterLevel_returnLabel#1true __utac_acc__Specification5_spec__3_#t~ret51#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~8#1 := __utac_acc__Specification5_spec__3_#t~ret51#1;havoc __utac_acc__Specification5_spec__3_#t~ret51#1; 85#L956true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~8#1); 47#L956-1true havoc __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_~tmp~8#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true; 80#timeShift_returnLabel#1true assume { :end_inline_timeShift } true; 161#L837-2true [2023-11-21 22:20:43,284 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:43,284 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2023-11-21 22:20:43,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:20:43,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996948750] [2023-11-21 22:20:43,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:43,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:20:43,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:20:43,414 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:20:43,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:20:43,459 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:20:43,462 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:43,463 INFO L85 PathProgramCache]: Analyzing trace with hash 353150766, now seen corresponding path program 1 times [2023-11-21 22:20:43,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:20:43,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119698390] [2023-11-21 22:20:43,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:43,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:20:43,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:20:43,478 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:20:43,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:20:43,491 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:20:43,493 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:43,493 INFO L85 PathProgramCache]: Analyzing trace with hash -986201641, now seen corresponding path program 1 times [2023-11-21 22:20:43,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:20:43,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397862191] [2023-11-21 22:20:43,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:43,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:20:43,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:43,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:20:43,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:20:43,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397862191] [2023-11-21 22:20:43,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397862191] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:20:43,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:20:43,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:20:43,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349957628] [2023-11-21 22:20:43,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:20:44,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:20:44,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:20:44,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:20:44,138 INFO L87 Difference]: Start difference. First operand has 167 states, 166 states have (on average 1.3373493975903614) internal successors, (222), 166 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 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) [2023-11-21 22:20:44,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:20:44,348 INFO L93 Difference]: Finished difference Result 387 states and 498 transitions. [2023-11-21 22:20:44,349 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 387 states and 498 transitions. [2023-11-21 22:20:44,363 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 249 [2023-11-21 22:20:44,387 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 387 states to 357 states and 468 transitions. [2023-11-21 22:20:44,391 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 357 [2023-11-21 22:20:44,395 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 357 [2023-11-21 22:20:44,396 INFO L73 IsDeterministic]: Start isDeterministic. Operand 357 states and 468 transitions. [2023-11-21 22:20:44,406 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:20:44,406 INFO L218 hiAutomatonCegarLoop]: Abstraction has 357 states and 468 transitions. [2023-11-21 22:20:44,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states and 468 transitions. [2023-11-21 22:20:44,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 212. [2023-11-21 22:20:44,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 212 states have (on average 1.3113207547169812) internal successors, (278), 211 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:20:44,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 278 transitions. [2023-11-21 22:20:44,464 INFO L240 hiAutomatonCegarLoop]: Abstraction has 212 states and 278 transitions. [2023-11-21 22:20:44,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:20:44,470 INFO L428 stractBuchiCegarLoop]: Abstraction has 212 states and 278 transitions. [2023-11-21 22:20:44,471 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-21 22:20:44,471 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 212 states and 278 transitions. [2023-11-21 22:20:44,476 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 148 [2023-11-21 22:20:44,476 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 22:20:44,477 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 22:20:44,478 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:20:44,478 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] [2023-11-21 22:20:44,478 INFO L748 eck$LassoCheckResult]: Stem: 626#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0; 627#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret32#1, main_~retValue_acc~6#1, main_~tmp~3#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 618#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 619#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~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 711#valid_product_returnLabel#1 main_#t~ret32#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret32#1;havoc main_#t~ret32#1; 657#L611 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 658#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; 685#__utac_acc__Specification5_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet45#1, test_#t~nondet46#1, test_#t~nondet47#1, test_#t~nondet48#1, test_~splverifierCounter~0#1, test_~tmp~7#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~7#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 675#L837-2 [2023-11-21 22:20:44,479 INFO L750 eck$LassoCheckResult]: Loop: 675#L837-2 assume !false; 632#L838 assume test_~splverifierCounter~0#1 < 4; 630#L839 havoc test_#t~nondet45#1;test_~tmp~7#1 := test_#t~nondet45#1;havoc test_#t~nondet45#1; 631#L847 assume !(0 != test_~tmp~7#1); 610#L847-2 havoc test_#t~nondet46#1;test_~tmp___0~1#1 := test_#t~nondet46#1;havoc test_#t~nondet46#1; 676#L857 assume !(0 != test_~tmp___0~1#1); 602#L857-2 havoc test_#t~nondet47#1;test_~tmp___2~0#1 := test_#t~nondet47#1;havoc test_#t~nondet47#1; 692#L867 assume 0 != test_~tmp___2~0#1; 645#L873-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret50#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~8#1;havoc isPumpRunning_~retValue_acc~8#1;isPumpRunning_~retValue_acc~8#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~8#1; 720#isPumpRunning_returnLabel#1 __utac_acc__Specification5_spec__2_#t~ret50#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~8#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret50#1;havoc __utac_acc__Specification5_spec__2_#t~ret50#1; 700#__utac_acc__Specification5_spec__2_returnLabel#1 havoc __utac_acc__Specification5_spec__2_#t~ret50#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true; 647#L641 assume !(0 != ~pumpRunning~0); 648#L641-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret34#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 650#L699 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret33#1, processEnvironment__wrappee__lowWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~4#1; 625#L673-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 572#processEnvironment__wrappee__base_returnLabel#4 assume { :end_inline_processEnvironment__wrappee__base } true; 573#L673-3 havoc processEnvironment__wrappee__lowWaterSensor_#t~ret33#1, processEnvironment__wrappee__lowWaterSensor_~tmp~4#1;assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 683#L699-1 havoc processEnvironment_#t~ret34#1, processEnvironment_~tmp~5#1;assume { :end_inline_processEnvironment } true; 708#L648-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_~tmp~8#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~8#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;havoc getWaterLevel_~retValue_acc~4#1;getWaterLevel_~retValue_acc~4#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~4#1; 673#getWaterLevel_returnLabel#1 __utac_acc__Specification5_spec__3_#t~ret51#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~8#1 := __utac_acc__Specification5_spec__3_#t~ret51#1;havoc __utac_acc__Specification5_spec__3_#t~ret51#1; 674#L956 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~8#1); 577#L956-1 havoc __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_~tmp~8#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true; 643#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 675#L837-2 [2023-11-21 22:20:44,480 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:44,480 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2023-11-21 22:20:44,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:20:44,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858340144] [2023-11-21 22:20:44,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:44,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:20:44,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:20:44,496 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:20:44,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:20:44,511 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:20:44,512 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:44,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1698677045, now seen corresponding path program 1 times [2023-11-21 22:20:44,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:20:44,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328218334] [2023-11-21 22:20:44,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:44,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:20:44,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:20:44,525 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:20:44,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:20:44,536 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:20:44,537 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:44,537 INFO L85 PathProgramCache]: Analyzing trace with hash -1772623828, now seen corresponding path program 1 times [2023-11-21 22:20:44,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:20:44,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439535346] [2023-11-21 22:20:44,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:44,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:20:44,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:44,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:20:44,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:20:44,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439535346] [2023-11-21 22:20:44,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439535346] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:20:44,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:20:44,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 22:20:44,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857051118] [2023-11-21 22:20:44,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:20:44,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:20:44,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 22:20:44,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:20:44,946 INFO L87 Difference]: Start difference. First operand 212 states and 278 transitions. cyclomatic complexity: 69 Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 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) [2023-11-21 22:20:45,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:20:45,176 INFO L93 Difference]: Finished difference Result 603 states and 789 transitions. [2023-11-21 22:20:45,176 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 603 states and 789 transitions. [2023-11-21 22:20:45,185 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 388 [2023-11-21 22:20:45,192 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 603 states to 603 states and 789 transitions. [2023-11-21 22:20:45,193 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 603 [2023-11-21 22:20:45,193 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 603 [2023-11-21 22:20:45,194 INFO L73 IsDeterministic]: Start isDeterministic. Operand 603 states and 789 transitions. [2023-11-21 22:20:45,196 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:20:45,196 INFO L218 hiAutomatonCegarLoop]: Abstraction has 603 states and 789 transitions. [2023-11-21 22:20:45,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states and 789 transitions. [2023-11-21 22:20:45,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 414. [2023-11-21 22:20:45,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 414 states have (on average 1.2995169082125604) internal successors, (538), 413 states have internal predecessors, (538), 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) [2023-11-21 22:20:45,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 538 transitions. [2023-11-21 22:20:45,241 INFO L240 hiAutomatonCegarLoop]: Abstraction has 414 states and 538 transitions. [2023-11-21 22:20:45,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:20:45,250 INFO L428 stractBuchiCegarLoop]: Abstraction has 414 states and 538 transitions. [2023-11-21 22:20:45,251 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-21 22:20:45,251 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 414 states and 538 transitions. [2023-11-21 22:20:45,256 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 294 [2023-11-21 22:20:45,256 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 22:20:45,257 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 22:20:45,261 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:20:45,261 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] [2023-11-21 22:20:45,263 INFO L748 eck$LassoCheckResult]: Stem: 1458#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0; 1459#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret32#1, main_~retValue_acc~6#1, main_~tmp~3#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 1449#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1450#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~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 1560#valid_product_returnLabel#1 main_#t~ret32#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret32#1;havoc main_#t~ret32#1; 1490#L611 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 1491#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; 1527#__utac_acc__Specification5_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet45#1, test_#t~nondet46#1, test_#t~nondet47#1, test_#t~nondet48#1, test_~splverifierCounter~0#1, test_~tmp~7#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~7#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1513#L837-2 [2023-11-21 22:20:45,264 INFO L750 eck$LassoCheckResult]: Loop: 1513#L837-2 assume !false; 1464#L838 assume test_~splverifierCounter~0#1 < 4; 1462#L839 havoc test_#t~nondet45#1;test_~tmp~7#1 := test_#t~nondet45#1;havoc test_#t~nondet45#1; 1463#L847 assume !(0 != test_~tmp~7#1); 1514#L847-2 havoc test_#t~nondet46#1;test_~tmp___0~1#1 := test_#t~nondet46#1;havoc test_#t~nondet46#1; 1515#L857 assume !(0 != test_~tmp___0~1#1); 1429#L857-2 havoc test_#t~nondet47#1;test_~tmp___2~0#1 := test_#t~nondet47#1;havoc test_#t~nondet47#1; 1538#L867 assume 0 != test_~tmp___2~0#1; 1790#L873-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret50#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~8#1;havoc isPumpRunning_~retValue_acc~8#1;isPumpRunning_~retValue_acc~8#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~8#1; 1574#isPumpRunning_returnLabel#1 __utac_acc__Specification5_spec__2_#t~ret50#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~8#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret50#1;havoc __utac_acc__Specification5_spec__2_#t~ret50#1; 1546#__utac_acc__Specification5_spec__2_returnLabel#1 havoc __utac_acc__Specification5_spec__2_#t~ret50#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true; 1479#L641 assume !(0 != ~pumpRunning~0); 1480#L641-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret34#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 1482#L699 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret33#1, processEnvironment__wrappee__lowWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~4#1; 1457#L673-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 1401#processEnvironment__wrappee__base_returnLabel#4 assume { :end_inline_processEnvironment__wrappee__base } true; 1402#L673-3 havoc processEnvironment__wrappee__lowWaterSensor_#t~ret33#1, processEnvironment__wrappee__lowWaterSensor_~tmp~4#1;assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 1525#L699-1 havoc processEnvironment_#t~ret34#1, processEnvironment_~tmp~5#1;assume { :end_inline_processEnvironment } true; 1555#L648-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_~tmp~8#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~8#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;havoc getWaterLevel_~retValue_acc~4#1;getWaterLevel_~retValue_acc~4#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~4#1; 1510#getWaterLevel_returnLabel#1 __utac_acc__Specification5_spec__3_#t~ret51#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~8#1 := __utac_acc__Specification5_spec__3_#t~ret51#1;havoc __utac_acc__Specification5_spec__3_#t~ret51#1; 1511#L956 assume 2 != __utac_acc__Specification5_spec__3_~tmp~8#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~8#1;havoc isPumpRunning_~retValue_acc~8#1;isPumpRunning_~retValue_acc~8#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~8#1; 1593#isPumpRunning_returnLabel#2 __utac_acc__Specification5_spec__3_#t~ret52#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~8#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~2#1 := __utac_acc__Specification5_spec__3_#t~ret52#1;havoc __utac_acc__Specification5_spec__3_#t~ret52#1; 1594#L960 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~2#1); 1765#L956-1 havoc __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_~tmp~8#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true; 1512#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1513#L837-2 [2023-11-21 22:20:45,264 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:45,264 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2023-11-21 22:20:45,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:20:45,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152977885] [2023-11-21 22:20:45,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:45,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:20:45,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:20:45,289 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:20:45,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:20:45,316 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:20:45,316 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:45,317 INFO L85 PathProgramCache]: Analyzing trace with hash 320064528, now seen corresponding path program 1 times [2023-11-21 22:20:45,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:20:45,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594997757] [2023-11-21 22:20:45,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:45,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:20:45,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:20:45,332 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:20:45,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:20:45,354 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:20:45,355 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:45,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1589514567, now seen corresponding path program 1 times [2023-11-21 22:20:45,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:20:45,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939574553] [2023-11-21 22:20:45,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:45,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:20:45,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:20:45,384 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:20:45,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:20:45,417 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:20:46,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:20:46,864 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:20:46,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:20:46,987 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.11 10:20:46 BoogieIcfgContainer [2023-11-21 22:20:46,987 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-21 22:20:46,988 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 22:20:46,988 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 22:20:46,988 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 22:20:46,989 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:20:43" (3/4) ... [2023-11-21 22:20:46,990 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2023-11-21 22:20:47,079 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d99f9e4d-1ff7-4f26-ba2d-c6098c365bdd/bin/uautomizer-verify-bycVGegfSx/witness.graphml [2023-11-21 22:20:47,079 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 22:20:47,080 INFO L158 Benchmark]: Toolchain (without parser) took 5803.45ms. Allocated memory was 165.7MB in the beginning and 203.4MB in the end (delta: 37.7MB). Free memory was 133.0MB in the beginning and 164.0MB in the end (delta: -31.0MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. [2023-11-21 22:20:47,080 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 117.4MB. Free memory is still 67.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:20:47,081 INFO L158 Benchmark]: CACSL2BoogieTranslator took 678.01ms. Allocated memory is still 165.7MB. Free memory was 133.0MB in the beginning and 113.9MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-21 22:20:47,081 INFO L158 Benchmark]: Boogie Procedure Inliner took 83.40ms. Allocated memory is still 165.7MB. Free memory was 113.9MB in the beginning and 110.5MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 22:20:47,082 INFO L158 Benchmark]: Boogie Preprocessor took 82.37ms. Allocated memory is still 165.7MB. Free memory was 110.5MB in the beginning and 107.1MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 22:20:47,083 INFO L158 Benchmark]: RCFGBuilder took 940.91ms. Allocated memory is still 165.7MB. Free memory was 107.1MB in the beginning and 134.1MB in the end (delta: -27.0MB). Peak memory consumption was 29.3MB. Max. memory is 16.1GB. [2023-11-21 22:20:47,083 INFO L158 Benchmark]: BuchiAutomizer took 3920.80ms. Allocated memory was 165.7MB in the beginning and 203.4MB in the end (delta: 37.7MB). Free memory was 134.1MB in the beginning and 167.2MB in the end (delta: -33.1MB). Peak memory consumption was 110.3MB. Max. memory is 16.1GB. [2023-11-21 22:20:47,084 INFO L158 Benchmark]: Witness Printer took 91.27ms. Allocated memory is still 203.4MB. Free memory was 167.2MB in the beginning and 164.0MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 22:20:47,086 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 117.4MB. Free memory is still 67.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 678.01ms. Allocated memory is still 165.7MB. Free memory was 133.0MB in the beginning and 113.9MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 83.40ms. Allocated memory is still 165.7MB. Free memory was 113.9MB in the beginning and 110.5MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 82.37ms. Allocated memory is still 165.7MB. Free memory was 110.5MB in the beginning and 107.1MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 940.91ms. Allocated memory is still 165.7MB. Free memory was 107.1MB in the beginning and 134.1MB in the end (delta: -27.0MB). Peak memory consumption was 29.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 3920.80ms. Allocated memory was 165.7MB in the beginning and 203.4MB in the end (delta: 37.7MB). Free memory was 134.1MB in the beginning and 167.2MB in the end (delta: -33.1MB). Peak memory consumption was 110.3MB. Max. memory is 16.1GB. * Witness Printer took 91.27ms. Allocated memory is still 203.4MB. Free memory was 167.2MB in the beginning and 164.0MB in the end (delta: 3.2MB). 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,"libacc.i","") [49] - GenericResultAtLocation [Line: 415]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [415] - GenericResultAtLocation [Line: 424]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [424] - GenericResultAtLocation [Line: 520]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [520] - GenericResultAtLocation [Line: 624]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [624] - GenericResultAtLocation [Line: 826]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [826] - GenericResultAtLocation [Line: 893]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [893] - GenericResultAtLocation [Line: 928]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [928] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 414 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.7s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.9s. Construction of modules took 0.1s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 334 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, 1236 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1236 mSDsluCounter, 2163 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1666 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 153 IncrementalHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 497 mSDtfsCounter, 153 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 837]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L432] int waterLevel = 1; [L433] int methaneLevelCritical = 0; [L521] int cleanupTimeShifts = 4; [L629] int pumpRunning = 0; [L630] int systemActive = 1; [L929] int switchedOnBeforeTS ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L602] int retValue_acc ; [L603] int tmp ; [L607] FCALL select_helpers() [L608] FCALL select_features() [L609] CALL, EXPR valid_product() [L920] int retValue_acc ; [L923] retValue_acc = 1 [L924] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L609] RET, EXPR valid_product() [L609] tmp = valid_product() [L611] COND TRUE \read(tmp) [L613] FCALL setup() [L614] CALL runTest() [L592] CALL __utac_acc__Specification5_spec__1() [L934] switchedOnBeforeTS = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L592] RET __utac_acc__Specification5_spec__1() [L593] CALL test() [L828] int splverifierCounter ; [L829] int tmp ; [L830] int tmp___0 ; [L831] int tmp___1 ; [L832] int tmp___2 ; [L835] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] Loop: [L837] COND TRUE 1 [L839] COND TRUE splverifierCounter < 4 [L845] tmp = __VERIFIER_nondet_int() [L847] COND FALSE !(\read(tmp)) [L855] tmp___0 = __VERIFIER_nondet_int() [L857] COND FALSE !(\read(tmp___0)) [L865] tmp___2 = __VERIFIER_nondet_int() [L867] COND TRUE \read(tmp___2) [L882] CALL timeShift() [L639] CALL __utac_acc__Specification5_spec__2() [L943] CALL, EXPR isPumpRunning() [L748] int retValue_acc ; [L751] retValue_acc = pumpRunning [L752] return (retValue_acc); [L943] RET, EXPR isPumpRunning() [L943] switchedOnBeforeTS = isPumpRunning() [L639] RET __utac_acc__Specification5_spec__2() [L641] COND FALSE !(\read(pumpRunning)) [L648] COND TRUE \read(systemActive) [L650] CALL processEnvironment() [L696] int tmp ; [L699] COND FALSE !(\read(pumpRunning)) [L714] CALL processEnvironment__wrappee__lowWaterSensor() [L670] int tmp ; [L673] COND FALSE !(\read(pumpRunning)) [L688] FCALL processEnvironment__wrappee__base() [L714] RET processEnvironment__wrappee__lowWaterSensor() [L650] RET processEnvironment() [L656] CALL __utac_acc__Specification5_spec__3() [L949] int tmp ; [L950] int tmp___0 ; [L954] CALL, EXPR getWaterLevel() [L503] int retValue_acc ; [L506] retValue_acc = waterLevel [L507] return (retValue_acc); [L954] RET, EXPR getWaterLevel() [L954] tmp = getWaterLevel() [L956] COND TRUE tmp != 2 [L958] CALL, EXPR isPumpRunning() [L748] int retValue_acc ; [L751] retValue_acc = pumpRunning [L752] return (retValue_acc); [L958] RET, EXPR isPumpRunning() [L958] tmp___0 = isPumpRunning() [L960] COND FALSE !(\read(tmp___0)) [L656] RET __utac_acc__Specification5_spec__3() [L882] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 837]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L432] int waterLevel = 1; [L433] int methaneLevelCritical = 0; [L521] int cleanupTimeShifts = 4; [L629] int pumpRunning = 0; [L630] int systemActive = 1; [L929] int switchedOnBeforeTS ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L602] int retValue_acc ; [L603] int tmp ; [L607] FCALL select_helpers() [L608] FCALL select_features() [L609] CALL, EXPR valid_product() [L920] int retValue_acc ; [L923] retValue_acc = 1 [L924] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L609] RET, EXPR valid_product() [L609] tmp = valid_product() [L611] COND TRUE \read(tmp) [L613] FCALL setup() [L614] CALL runTest() [L592] CALL __utac_acc__Specification5_spec__1() [L934] switchedOnBeforeTS = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L592] RET __utac_acc__Specification5_spec__1() [L593] CALL test() [L828] int splverifierCounter ; [L829] int tmp ; [L830] int tmp___0 ; [L831] int tmp___1 ; [L832] int tmp___2 ; [L835] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] Loop: [L837] COND TRUE 1 [L839] COND TRUE splverifierCounter < 4 [L845] tmp = __VERIFIER_nondet_int() [L847] COND FALSE !(\read(tmp)) [L855] tmp___0 = __VERIFIER_nondet_int() [L857] COND FALSE !(\read(tmp___0)) [L865] tmp___2 = __VERIFIER_nondet_int() [L867] COND TRUE \read(tmp___2) [L882] CALL timeShift() [L639] CALL __utac_acc__Specification5_spec__2() [L943] CALL, EXPR isPumpRunning() [L748] int retValue_acc ; [L751] retValue_acc = pumpRunning [L752] return (retValue_acc); [L943] RET, EXPR isPumpRunning() [L943] switchedOnBeforeTS = isPumpRunning() [L639] RET __utac_acc__Specification5_spec__2() [L641] COND FALSE !(\read(pumpRunning)) [L648] COND TRUE \read(systemActive) [L650] CALL processEnvironment() [L696] int tmp ; [L699] COND FALSE !(\read(pumpRunning)) [L714] CALL processEnvironment__wrappee__lowWaterSensor() [L670] int tmp ; [L673] COND FALSE !(\read(pumpRunning)) [L688] FCALL processEnvironment__wrappee__base() [L714] RET processEnvironment__wrappee__lowWaterSensor() [L650] RET processEnvironment() [L656] CALL __utac_acc__Specification5_spec__3() [L949] int tmp ; [L950] int tmp___0 ; [L954] CALL, EXPR getWaterLevel() [L503] int retValue_acc ; [L506] retValue_acc = waterLevel [L507] return (retValue_acc); [L954] RET, EXPR getWaterLevel() [L954] tmp = getWaterLevel() [L956] COND TRUE tmp != 2 [L958] CALL, EXPR isPumpRunning() [L748] int retValue_acc ; [L751] retValue_acc = pumpRunning [L752] return (retValue_acc); [L958] RET, EXPR isPumpRunning() [L958] tmp___0 = isPumpRunning() [L960] COND FALSE !(\read(tmp___0)) [L656] RET __utac_acc__Specification5_spec__3() [L882] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2023-11-21 22:20:47,191 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d99f9e4d-1ff7-4f26-ba2d-c6098c365bdd/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)