./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product42.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_193eb140-b7b4-470d-8209-76d801fbc1d4/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_193eb140-b7b4-470d-8209-76d801fbc1d4/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_193eb140-b7b4-470d-8209-76d801fbc1d4/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_193eb140-b7b4-470d-8209-76d801fbc1d4/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product42.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_193eb140-b7b4-470d-8209-76d801fbc1d4/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_193eb140-b7b4-470d-8209-76d801fbc1d4/bin/uautomizer-verify-LYvppIcaGC --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 449370313253a0d5d7b509b2cd15e912fe8e85dcb7140575e7078385cf7fc6cf --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 23:48:28,063 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 23:48:28,163 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_193eb140-b7b4-470d-8209-76d801fbc1d4/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-23 23:48:28,168 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 23:48:28,169 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 23:48:28,210 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 23:48:28,211 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 23:48:28,211 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 23:48:28,212 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 23:48:28,212 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 23:48:28,213 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 23:48:28,214 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 23:48:28,214 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 23:48:28,214 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-23 23:48:28,215 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-23 23:48:28,215 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-23 23:48:28,215 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-23 23:48:28,215 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-23 23:48:28,215 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-23 23:48:28,215 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 23:48:28,215 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-23 23:48:28,215 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 23:48:28,215 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 23:48:28,215 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 23:48:28,216 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 23:48:28,216 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-23 23:48:28,216 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-23 23:48:28,216 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-23 23:48:28,216 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-23 23:48:28,216 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 23:48:28,216 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 23:48:28,216 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-23 23:48:28,216 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 23:48:28,216 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 23:48:28,216 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 23:48:28,216 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:48:28,217 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 23:48:28,217 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-11-23 23:48:28,217 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-23 23:48:28,217 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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_193eb140-b7b4-470d-8209-76d801fbc1d4/bin/uautomizer-verify-LYvppIcaGC 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 -> 449370313253a0d5d7b509b2cd15e912fe8e85dcb7140575e7078385cf7fc6cf [2024-11-23 23:48:28,639 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 23:48:28,653 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 23:48:28,656 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 23:48:28,659 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 23:48:28,659 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 23:48:28,661 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_193eb140-b7b4-470d-8209-76d801fbc1d4/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/product-lines/minepump_spec3_product42.cil.c [2024-11-23 23:48:31,912 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_193eb140-b7b4-470d-8209-76d801fbc1d4/bin/uautomizer-verify-LYvppIcaGC/data/ffcb24456/6866238403844ccfb24f0edacd1930c7/FLAGfe1790924 [2024-11-23 23:48:32,405 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 23:48:32,406 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_193eb140-b7b4-470d-8209-76d801fbc1d4/sv-benchmarks/c/product-lines/minepump_spec3_product42.cil.c [2024-11-23 23:48:32,422 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_193eb140-b7b4-470d-8209-76d801fbc1d4/bin/uautomizer-verify-LYvppIcaGC/data/ffcb24456/6866238403844ccfb24f0edacd1930c7/FLAGfe1790924 [2024-11-23 23:48:32,453 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_193eb140-b7b4-470d-8209-76d801fbc1d4/bin/uautomizer-verify-LYvppIcaGC/data/ffcb24456/6866238403844ccfb24f0edacd1930c7 [2024-11-23 23:48:32,456 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 23:48:32,460 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 23:48:32,463 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 23:48:32,464 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 23:48:32,469 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 23:48:32,470 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:48:32" (1/1) ... [2024-11-23 23:48:32,471 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20cfaa6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:48:32, skipping insertion in model container [2024-11-23 23:48:32,471 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:48:32" (1/1) ... [2024-11-23 23:48:32,532 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 23:48:32,958 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:48:32,973 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 23:48:32,984 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [49] [2024-11-23 23:48:32,986 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [153] [2024-11-23 23:48:32,986 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [221] [2024-11-23 23:48:32,986 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [407] [2024-11-23 23:48:32,986 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [502] [2024-11-23 23:48:32,986 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [511] [2024-11-23 23:48:32,986 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [546] [2024-11-23 23:48:32,987 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [912] [2024-11-23 23:48:33,066 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:48:33,093 INFO L204 MainTranslator]: Completed translation [2024-11-23 23:48:33,096 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:48:33 WrapperNode [2024-11-23 23:48:33,096 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 23:48:33,098 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 23:48:33,098 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 23:48:33,098 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 23:48:33,111 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:48:33" (1/1) ... [2024-11-23 23:48:33,134 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:48:33" (1/1) ... [2024-11-23 23:48:33,179 INFO L138 Inliner]: procedures = 54, calls = 98, calls flagged for inlining = 51, calls inlined = 63, statements flattened = 436 [2024-11-23 23:48:33,180 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 23:48:33,181 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 23:48:33,181 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 23:48:33,181 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 23:48:33,191 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:48:33" (1/1) ... [2024-11-23 23:48:33,191 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:48:33" (1/1) ... [2024-11-23 23:48:33,194 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:48:33" (1/1) ... [2024-11-23 23:48:33,210 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]. [2024-11-23 23:48:33,210 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:48:33" (1/1) ... [2024-11-23 23:48:33,211 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:48:33" (1/1) ... [2024-11-23 23:48:33,226 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:48:33" (1/1) ... [2024-11-23 23:48:33,227 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:48:33" (1/1) ... [2024-11-23 23:48:33,240 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:48:33" (1/1) ... [2024-11-23 23:48:33,246 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:48:33" (1/1) ... [2024-11-23 23:48:33,247 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:48:33" (1/1) ... [2024-11-23 23:48:33,254 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 23:48:33,255 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 23:48:33,255 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 23:48:33,255 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 23:48:33,260 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:48:33" (1/1) ... [2024-11-23 23:48:33,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 23:48:33,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_193eb140-b7b4-470d-8209-76d801fbc1d4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:48:33,302 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_193eb140-b7b4-470d-8209-76d801fbc1d4/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 23:48:33,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_193eb140-b7b4-470d-8209-76d801fbc1d4/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-23 23:48:33,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 23:48:33,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 23:48:33,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 23:48:33,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 23:48:33,448 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 23:48:33,449 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 23:48:33,916 INFO L? ?]: Removed 103 outVars from TransFormulas that were not future-live. [2024-11-23 23:48:33,916 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 23:48:33,940 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 23:48:33,944 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-23 23:48:33,944 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:48:33 BoogieIcfgContainer [2024-11-23 23:48:33,944 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 23:48:33,945 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-23 23:48:33,945 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-23 23:48:33,952 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-23 23:48:33,953 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-23 23:48:33,954 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 11:48:32" (1/3) ... [2024-11-23 23:48:33,955 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@c68705b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 11:48:33, skipping insertion in model container [2024-11-23 23:48:33,955 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-23 23:48:33,956 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:48:33" (2/3) ... [2024-11-23 23:48:33,957 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@c68705b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 11:48:33, skipping insertion in model container [2024-11-23 23:48:33,958 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-23 23:48:33,958 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:48:33" (3/3) ... [2024-11-23 23:48:33,960 INFO L363 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product42.cil.c [2024-11-23 23:48:34,034 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-23 23:48:34,035 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-23 23:48:34,035 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-23 23:48:34,035 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-23 23:48:34,036 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-23 23:48:34,036 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-23 23:48:34,036 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-23 23:48:34,036 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-23 23:48:34,043 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 125 states, 124 states have (on average 1.3709677419354838) internal successors, (170), 124 states have internal predecessors, (170), 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) [2024-11-23 23:48:34,077 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 79 [2024-11-23 23:48:34,079 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-23 23:48:34,079 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-23 23:48:34,085 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:48:34,086 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:48:34,086 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-23 23:48:34,086 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 125 states, 124 states have (on average 1.3709677419354838) internal successors, (170), 124 states have internal predecessors, (170), 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) [2024-11-23 23:48:34,093 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 79 [2024-11-23 23:48:34,093 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-23 23:48:34,093 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-23 23:48:34,094 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:48:34,094 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:48:34,101 INFO L747 eck$LassoCheckResult]: Stem: "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);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1;" "main_#t~ret4#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1;" "assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_#t~nondet8#1, test_~splverifierCounter~0#1, test_~tmp~1#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~1#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-11-23 23:48:34,101 INFO L749 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet5#1;test_~tmp~1#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1;" "assume !(0 != test_~tmp~1#1);" "havoc test_#t~nondet6#1;test_~tmp___0~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1;" "assume !(0 != test_~tmp___0~0#1);" "havoc test_#t~nondet7#1;test_~tmp___2~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1;" "assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet8#1;test_~tmp___1~0#1 := test_#t~nondet8#1;havoc test_#t~nondet8#1;" "assume 0 != test_~tmp___1~0#1;" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume !(0 != ~systemActive~0);" "assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_#t~ret52#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#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;" "__utac_acc__Specification3_spec__1_#t~ret50#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret50#1;havoc __utac_acc__Specification3_spec__1_#t~ret50#1;" "assume 0 != __utac_acc__Specification3_spec__1_~tmp~8#1;" "havoc __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_#t~ret52#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2024-11-23 23:48:34,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:48:34,110 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2024-11-23 23:48:34,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-23 23:48:34,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573607789] [2024-11-23 23:48:34,121 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:48:34,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:48:34,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:48:34,269 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 23:48:34,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:48:34,324 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-23 23:48:34,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:48:34,328 INFO L85 PathProgramCache]: Analyzing trace with hash 391881760, now seen corresponding path program 1 times [2024-11-23 23:48:34,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-23 23:48:34,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287198837] [2024-11-23 23:48:34,329 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:48:34,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:48:34,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:48:34,348 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 23:48:34,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:48:34,365 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-23 23:48:34,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:48:34,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1747300836, now seen corresponding path program 1 times [2024-11-23 23:48:34,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-23 23:48:34,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390667293] [2024-11-23 23:48:34,371 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:48:34,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:48:34,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:48:34,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-23 23:48:34,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390667293] [2024-11-23 23:48:34,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390667293] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:48:34,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1002882666] [2024-11-23 23:48:34,688 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:48:34,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:48:34,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_193eb140-b7b4-470d-8209-76d801fbc1d4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:48:34,691 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_193eb140-b7b4-470d-8209-76d801fbc1d4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:48:34,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_193eb140-b7b4-470d-8209-76d801fbc1d4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 23:48:34,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:48:34,808 INFO L256 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-23 23:48:34,810 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:48:34,907 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:48:34,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1002882666] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:48:34,988 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 23:48:34,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 2, 2] total 6 [2024-11-23 23:48:34,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905982176] [2024-11-23 23:48:34,990 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 23:48:35,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-23 23:48:35,148 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 23:48:35,150 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:48:35,153 INFO L87 Difference]: Start difference. First operand has 125 states, 124 states have (on average 1.3709677419354838) internal successors, (170), 124 states have internal predecessors, (170), 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 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 6 states have internal predecessors, (41), 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) [2024-11-23 23:48:35,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:48:35,283 INFO L93 Difference]: Finished difference Result 119 states and 153 transitions. [2024-11-23 23:48:35,285 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 119 states and 153 transitions. [2024-11-23 23:48:35,288 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2024-11-23 23:48:35,300 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 119 states to 109 states and 143 transitions. [2024-11-23 23:48:35,301 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 109 [2024-11-23 23:48:35,302 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 109 [2024-11-23 23:48:35,302 INFO L73 IsDeterministic]: Start isDeterministic. Operand 109 states and 143 transitions. [2024-11-23 23:48:35,303 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-23 23:48:35,304 INFO L218 hiAutomatonCegarLoop]: Abstraction has 109 states and 143 transitions. [2024-11-23 23:48:35,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states and 143 transitions. [2024-11-23 23:48:35,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2024-11-23 23:48:35,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 109 states have (on average 1.311926605504587) internal successors, (143), 108 states have internal predecessors, (143), 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) [2024-11-23 23:48:35,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 143 transitions. [2024-11-23 23:48:35,337 INFO L240 hiAutomatonCegarLoop]: Abstraction has 109 states and 143 transitions. [2024-11-23 23:48:35,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:48:35,342 INFO L425 stractBuchiCegarLoop]: Abstraction has 109 states and 143 transitions. [2024-11-23 23:48:35,342 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-23 23:48:35,342 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 109 states and 143 transitions. [2024-11-23 23:48:35,344 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2024-11-23 23:48:35,345 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-23 23:48:35,345 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-23 23:48:35,346 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:48:35,346 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] [2024-11-23 23:48:35,346 INFO L747 eck$LassoCheckResult]: Stem: "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);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1;" "main_#t~ret4#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1;" "assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_#t~nondet8#1, test_~splverifierCounter~0#1, test_~tmp~1#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~1#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-11-23 23:48:35,346 INFO L749 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet5#1;test_~tmp~1#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1;" "assume !(0 != test_~tmp~1#1);" "havoc test_#t~nondet6#1;test_~tmp___0~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1;" "assume !(0 != test_~tmp___0~0#1);" "havoc test_#t~nondet7#1;test_~tmp___2~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1;" "assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet8#1;test_~tmp___1~0#1 := test_#t~nondet8#1;havoc test_#t~nondet8#1;" "assume 0 != test_~tmp___1~0#1;" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret9#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1;" "assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment_#t~ret9#1, processEnvironment_~tmp~2#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_#t~ret52#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#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;" "__utac_acc__Specification3_spec__1_#t~ret50#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret50#1;havoc __utac_acc__Specification3_spec__1_#t~ret50#1;" "assume 0 != __utac_acc__Specification3_spec__1_~tmp~8#1;" "havoc __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_#t~ret52#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2024-11-23 23:48:35,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:48:35,347 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2024-11-23 23:48:35,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-23 23:48:35,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815323790] [2024-11-23 23:48:35,347 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:48:35,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:48:35,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:48:35,371 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 23:48:35,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:48:35,388 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-23 23:48:35,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:48:35,393 INFO L85 PathProgramCache]: Analyzing trace with hash -1478247317, now seen corresponding path program 1 times [2024-11-23 23:48:35,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-23 23:48:35,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310638715] [2024-11-23 23:48:35,394 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:48:35,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:48:35,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:48:35,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-23 23:48:35,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310638715] [2024-11-23 23:48:35,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310638715] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:48:35,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [337987405] [2024-11-23 23:48:35,455 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:48:35,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:48:35,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_193eb140-b7b4-470d-8209-76d801fbc1d4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:48:35,463 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_193eb140-b7b4-470d-8209-76d801fbc1d4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:48:35,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_193eb140-b7b4-470d-8209-76d801fbc1d4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-23 23:48:35,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:48:35,545 INFO L256 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 23:48:35,546 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:48:35,553 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:48:35,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [337987405] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:48:35,562 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 23:48:35,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-11-23 23:48:35,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584321912] [2024-11-23 23:48:35,562 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 23:48:35,562 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-23 23:48:35,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-23 23:48:35,563 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:48:35,563 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:48:35,564 INFO L87 Difference]: Start difference. First operand 109 states and 143 transitions. cyclomatic complexity: 36 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) [2024-11-23 23:48:35,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:48:35,633 INFO L93 Difference]: Finished difference Result 169 states and 216 transitions. [2024-11-23 23:48:35,634 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 169 states and 216 transitions. [2024-11-23 23:48:35,636 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 118 [2024-11-23 23:48:35,638 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 169 states to 169 states and 216 transitions. [2024-11-23 23:48:35,642 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 169 [2024-11-23 23:48:35,642 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 169 [2024-11-23 23:48:35,643 INFO L73 IsDeterministic]: Start isDeterministic. Operand 169 states and 216 transitions. [2024-11-23 23:48:35,643 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-23 23:48:35,644 INFO L218 hiAutomatonCegarLoop]: Abstraction has 169 states and 216 transitions. [2024-11-23 23:48:35,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states and 216 transitions. [2024-11-23 23:48:35,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2024-11-23 23:48:35,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 169 states have (on average 1.2781065088757397) internal successors, (216), 168 states have internal predecessors, (216), 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) [2024-11-23 23:48:35,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 216 transitions. [2024-11-23 23:48:35,659 INFO L240 hiAutomatonCegarLoop]: Abstraction has 169 states and 216 transitions. [2024-11-23 23:48:35,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:48:35,664 INFO L425 stractBuchiCegarLoop]: Abstraction has 169 states and 216 transitions. [2024-11-23 23:48:35,664 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-23 23:48:35,664 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 169 states and 216 transitions. [2024-11-23 23:48:35,666 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 118 [2024-11-23 23:48:35,666 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-23 23:48:35,666 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-23 23:48:35,669 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:48:35,669 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] [2024-11-23 23:48:35,669 INFO L747 eck$LassoCheckResult]: Stem: "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);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1;" "main_#t~ret4#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1;" "assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_#t~nondet8#1, test_~splverifierCounter~0#1, test_~tmp~1#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~1#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-11-23 23:48:35,670 INFO L749 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet5#1;test_~tmp~1#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1;" "assume !(0 != test_~tmp~1#1);" "havoc test_#t~nondet6#1;test_~tmp___0~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1;" "assume !(0 != test_~tmp___0~0#1);" "havoc test_#t~nondet7#1;test_~tmp___2~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1;" "assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet8#1;test_~tmp___1~0#1 := test_#t~nondet8#1;havoc test_#t~nondet8#1;" "assume 0 != test_~tmp___1~0#1;" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret9#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1;" "assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret20#1, isHighWaterLevel_~retValue_acc~3#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~3#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;" "assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~6#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1;" "isHighWaterLevel_#t~ret20#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret20#1;havoc isHighWaterLevel_#t~ret20#1;" "assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~1#1 := 0;" "isHighWaterLevel_~retValue_acc~3#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~3#1;" "processEnvironment_#t~ret9#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret20#1, isHighWaterLevel_~retValue_acc~3#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~2#1 := processEnvironment_#t~ret9#1;havoc processEnvironment_#t~ret9#1;" "assume !(0 != processEnvironment_~tmp~2#1);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment_#t~ret9#1, processEnvironment_~tmp~2#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_#t~ret52#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#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;" "__utac_acc__Specification3_spec__1_#t~ret50#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret50#1;havoc __utac_acc__Specification3_spec__1_#t~ret50#1;" "assume 0 != __utac_acc__Specification3_spec__1_~tmp~8#1;" "havoc __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_#t~ret52#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2024-11-23 23:48:35,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:48:35,671 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2024-11-23 23:48:35,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-23 23:48:35,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624243927] [2024-11-23 23:48:35,671 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:48:35,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:48:35,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:48:35,687 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 23:48:35,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:48:35,744 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-23 23:48:35,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:48:35,744 INFO L85 PathProgramCache]: Analyzing trace with hash -1668333643, now seen corresponding path program 1 times [2024-11-23 23:48:35,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-23 23:48:35,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822222942] [2024-11-23 23:48:35,745 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:48:35,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:48:35,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:48:35,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-23 23:48:35,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822222942] [2024-11-23 23:48:35,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822222942] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:48:35,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1763450879] [2024-11-23 23:48:35,822 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:48:35,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:48:35,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_193eb140-b7b4-470d-8209-76d801fbc1d4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:48:35,825 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_193eb140-b7b4-470d-8209-76d801fbc1d4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:48:35,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_193eb140-b7b4-470d-8209-76d801fbc1d4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-23 23:48:35,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:48:35,885 INFO L256 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-23 23:48:35,887 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:48:35,897 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:48:35,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1763450879] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:48:35,909 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 23:48:35,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 4 [2024-11-23 23:48:35,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874375449] [2024-11-23 23:48:35,909 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 23:48:35,910 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-23 23:48:35,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-23 23:48:35,910 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:48:35,911 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:48:35,911 INFO L87 Difference]: Start difference. First operand 169 states and 216 transitions. cyclomatic complexity: 49 Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:48:35,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:48:35,973 INFO L93 Difference]: Finished difference Result 175 states and 222 transitions. [2024-11-23 23:48:35,973 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 175 states and 222 transitions. [2024-11-23 23:48:35,975 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 122 [2024-11-23 23:48:35,977 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 175 states to 175 states and 222 transitions. [2024-11-23 23:48:35,977 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 175 [2024-11-23 23:48:35,978 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 175 [2024-11-23 23:48:35,978 INFO L73 IsDeterministic]: Start isDeterministic. Operand 175 states and 222 transitions. [2024-11-23 23:48:35,979 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-23 23:48:35,979 INFO L218 hiAutomatonCegarLoop]: Abstraction has 175 states and 222 transitions. [2024-11-23 23:48:35,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states and 222 transitions. [2024-11-23 23:48:35,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2024-11-23 23:48:35,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 175 states have (on average 1.2685714285714285) internal successors, (222), 174 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) [2024-11-23 23:48:35,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 222 transitions. [2024-11-23 23:48:35,988 INFO L240 hiAutomatonCegarLoop]: Abstraction has 175 states and 222 transitions. [2024-11-23 23:48:35,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:48:35,989 INFO L425 stractBuchiCegarLoop]: Abstraction has 175 states and 222 transitions. [2024-11-23 23:48:35,990 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-23 23:48:35,990 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 175 states and 222 transitions. [2024-11-23 23:48:35,991 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 122 [2024-11-23 23:48:35,992 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-23 23:48:35,992 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-23 23:48:35,994 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:48:35,994 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] [2024-11-23 23:48:35,994 INFO L747 eck$LassoCheckResult]: Stem: "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);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1;" "main_#t~ret4#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1;" "assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_#t~nondet8#1, test_~splverifierCounter~0#1, test_~tmp~1#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~1#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-11-23 23:48:35,994 INFO L749 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet5#1;test_~tmp~1#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1;" "assume !(0 != test_~tmp~1#1);" "havoc test_#t~nondet6#1;test_~tmp___0~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1;" "assume !(0 != test_~tmp___0~0#1);" "havoc test_#t~nondet7#1;test_~tmp___2~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1;" "assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet8#1;test_~tmp___1~0#1 := test_#t~nondet8#1;havoc test_#t~nondet8#1;" "assume 0 != test_~tmp___1~0#1;" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret9#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1;" "assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret20#1, isHighWaterLevel_~retValue_acc~3#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~3#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;" "assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~6#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1;" "isHighWaterLevel_#t~ret20#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret20#1;havoc isHighWaterLevel_#t~ret20#1;" "assume !(0 != isHighWaterLevel_~tmp~4#1);isHighWaterLevel_~tmp___0~1#1 := 1;" "isHighWaterLevel_~retValue_acc~3#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~3#1;" "processEnvironment_#t~ret9#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret20#1, isHighWaterLevel_~retValue_acc~3#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~2#1 := processEnvironment_#t~ret9#1;havoc processEnvironment_#t~ret9#1;" "assume !(0 != processEnvironment_~tmp~2#1);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment_#t~ret9#1, processEnvironment_~tmp~2#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_#t~ret52#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#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;" "__utac_acc__Specification3_spec__1_#t~ret50#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret50#1;havoc __utac_acc__Specification3_spec__1_#t~ret50#1;" "assume 0 != __utac_acc__Specification3_spec__1_~tmp~8#1;" "havoc __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_#t~ret52#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2024-11-23 23:48:35,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:48:35,995 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2024-11-23 23:48:35,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-23 23:48:35,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725082358] [2024-11-23 23:48:35,995 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:48:35,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:48:36,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:48:36,006 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 23:48:36,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:48:36,022 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-23 23:48:36,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:48:36,026 INFO L85 PathProgramCache]: Analyzing trace with hash -967269065, now seen corresponding path program 1 times [2024-11-23 23:48:36,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-23 23:48:36,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521081921] [2024-11-23 23:48:36,026 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:48:36,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:48:36,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:48:36,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-23 23:48:36,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521081921] [2024-11-23 23:48:36,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521081921] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:48:36,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [926327737] [2024-11-23 23:48:36,136 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:48:36,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:48:36,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_193eb140-b7b4-470d-8209-76d801fbc1d4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:48:36,139 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_193eb140-b7b4-470d-8209-76d801fbc1d4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:48:36,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_193eb140-b7b4-470d-8209-76d801fbc1d4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-23 23:48:36,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:48:36,207 INFO L256 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-23 23:48:36,209 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:48:36,234 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:48:36,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [926327737] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:48:36,272 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 23:48:36,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 5 [2024-11-23 23:48:36,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975097731] [2024-11-23 23:48:36,275 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 23:48:36,276 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-23 23:48:36,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-23 23:48:36,276 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:48:36,276 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:48:36,277 INFO L87 Difference]: Start difference. First operand 175 states and 222 transitions. cyclomatic complexity: 49 Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 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) [2024-11-23 23:48:36,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:48:36,372 INFO L93 Difference]: Finished difference Result 184 states and 231 transitions. [2024-11-23 23:48:36,372 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 184 states and 231 transitions. [2024-11-23 23:48:36,377 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 128 [2024-11-23 23:48:36,380 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 184 states to 184 states and 231 transitions. [2024-11-23 23:48:36,382 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 184 [2024-11-23 23:48:36,383 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 184 [2024-11-23 23:48:36,383 INFO L73 IsDeterministic]: Start isDeterministic. Operand 184 states and 231 transitions. [2024-11-23 23:48:36,384 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-23 23:48:36,384 INFO L218 hiAutomatonCegarLoop]: Abstraction has 184 states and 231 transitions. [2024-11-23 23:48:36,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states and 231 transitions. [2024-11-23 23:48:36,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 184. [2024-11-23 23:48:36,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 184 states have (on average 1.2554347826086956) internal successors, (231), 183 states have internal predecessors, (231), 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) [2024-11-23 23:48:36,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 231 transitions. [2024-11-23 23:48:36,402 INFO L240 hiAutomatonCegarLoop]: Abstraction has 184 states and 231 transitions. [2024-11-23 23:48:36,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:48:36,404 INFO L425 stractBuchiCegarLoop]: Abstraction has 184 states and 231 transitions. [2024-11-23 23:48:36,404 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-23 23:48:36,405 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 184 states and 231 transitions. [2024-11-23 23:48:36,408 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 128 [2024-11-23 23:48:36,408 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-23 23:48:36,408 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-23 23:48:36,408 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:48:36,409 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] [2024-11-23 23:48:36,409 INFO L747 eck$LassoCheckResult]: Stem: "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);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1;" "main_#t~ret4#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1;" "assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_#t~nondet8#1, test_~splverifierCounter~0#1, test_~tmp~1#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~1#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-11-23 23:48:36,409 INFO L749 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet5#1;test_~tmp~1#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1;" "assume !(0 != test_~tmp~1#1);" "havoc test_#t~nondet6#1;test_~tmp___0~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1;" "assume !(0 != test_~tmp___0~0#1);" "havoc test_#t~nondet7#1;test_~tmp___2~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1;" "assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1;" "assume { :end_inline_startSystem } true;" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret9#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1;" "assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret20#1, isHighWaterLevel_~retValue_acc~3#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~3#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;" "assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1;" "isHighWaterLevel_#t~ret20#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret20#1;havoc isHighWaterLevel_#t~ret20#1;" "assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~1#1 := 0;" "isHighWaterLevel_~retValue_acc~3#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~3#1;" "processEnvironment_#t~ret9#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret20#1, isHighWaterLevel_~retValue_acc~3#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~2#1 := processEnvironment_#t~ret9#1;havoc processEnvironment_#t~ret9#1;" "assume !(0 != processEnvironment_~tmp~2#1);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment_#t~ret9#1, processEnvironment_~tmp~2#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_#t~ret52#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#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;" "__utac_acc__Specification3_spec__1_#t~ret50#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret50#1;havoc __utac_acc__Specification3_spec__1_#t~ret50#1;" "assume 0 != __utac_acc__Specification3_spec__1_~tmp~8#1;" "havoc __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_#t~ret52#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2024-11-23 23:48:36,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:48:36,409 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 5 times [2024-11-23 23:48:36,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-23 23:48:36,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769836446] [2024-11-23 23:48:36,413 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:48:36,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:48:36,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:48:36,430 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 23:48:36,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:48:36,441 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-23 23:48:36,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:48:36,446 INFO L85 PathProgramCache]: Analyzing trace with hash -1308212972, now seen corresponding path program 1 times [2024-11-23 23:48:36,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-23 23:48:36,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076426977] [2024-11-23 23:48:36,447 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:48:36,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:48:36,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:48:36,461 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 23:48:36,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:48:36,472 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-23 23:48:36,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:48:36,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1735749584, now seen corresponding path program 1 times [2024-11-23 23:48:36,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-23 23:48:36,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095084843] [2024-11-23 23:48:36,477 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:48:36,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:48:36,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:48:36,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-23 23:48:36,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095084843] [2024-11-23 23:48:36,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095084843] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:48:36,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [768168816] [2024-11-23 23:48:36,702 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:48:36,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:48:36,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_193eb140-b7b4-470d-8209-76d801fbc1d4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:48:36,708 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_193eb140-b7b4-470d-8209-76d801fbc1d4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:48:36,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_193eb140-b7b4-470d-8209-76d801fbc1d4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-23 23:48:36,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:48:36,797 INFO L256 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-23 23:48:36,799 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:48:36,891 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:48:36,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [768168816] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:48:36,982 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 23:48:36,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 4 [2024-11-23 23:48:36,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632238589] [2024-11-23 23:48:36,982 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 23:48:37,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-23 23:48:37,183 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:48:37,183 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:48:37,183 INFO L87 Difference]: Start difference. First operand 184 states and 231 transitions. cyclomatic complexity: 49 Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 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) [2024-11-23 23:48:37,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:48:37,307 INFO L93 Difference]: Finished difference Result 361 states and 447 transitions. [2024-11-23 23:48:37,307 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 361 states and 447 transitions. [2024-11-23 23:48:37,311 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 256 [2024-11-23 23:48:37,314 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 361 states to 361 states and 447 transitions. [2024-11-23 23:48:37,315 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 361 [2024-11-23 23:48:37,315 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 361 [2024-11-23 23:48:37,315 INFO L73 IsDeterministic]: Start isDeterministic. Operand 361 states and 447 transitions. [2024-11-23 23:48:37,318 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-23 23:48:37,322 INFO L218 hiAutomatonCegarLoop]: Abstraction has 361 states and 447 transitions. [2024-11-23 23:48:37,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states and 447 transitions. [2024-11-23 23:48:37,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 361. [2024-11-23 23:48:37,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 361 states have (on average 1.2382271468144044) internal successors, (447), 360 states have internal predecessors, (447), 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) [2024-11-23 23:48:37,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 447 transitions. [2024-11-23 23:48:37,354 INFO L240 hiAutomatonCegarLoop]: Abstraction has 361 states and 447 transitions. [2024-11-23 23:48:37,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:48:37,356 INFO L425 stractBuchiCegarLoop]: Abstraction has 361 states and 447 transitions. [2024-11-23 23:48:37,356 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-11-23 23:48:37,356 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 361 states and 447 transitions. [2024-11-23 23:48:37,361 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 256 [2024-11-23 23:48:37,365 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-23 23:48:37,365 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-23 23:48:37,366 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:48:37,366 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] [2024-11-23 23:48:37,366 INFO L747 eck$LassoCheckResult]: Stem: "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);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1;" "main_#t~ret4#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1;" "assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_#t~nondet8#1, test_~splverifierCounter~0#1, test_~tmp~1#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~1#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-11-23 23:48:37,366 INFO L749 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet5#1;test_~tmp~1#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1;" "assume !(0 != test_~tmp~1#1);" "havoc test_#t~nondet6#1;test_~tmp___0~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1;" "assume !(0 != test_~tmp___0~0#1);" "havoc test_#t~nondet7#1;test_~tmp___2~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1;" "assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1;" "assume { :end_inline_startSystem } true;" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret9#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1;" "assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret20#1, isHighWaterLevel_~retValue_acc~3#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~3#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;" "assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1;" "isHighWaterLevel_#t~ret20#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret20#1;havoc isHighWaterLevel_#t~ret20#1;" "assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~1#1 := 0;" "isHighWaterLevel_~retValue_acc~3#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~3#1;" "processEnvironment_#t~ret9#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret20#1, isHighWaterLevel_~retValue_acc~3#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~2#1 := processEnvironment_#t~ret9#1;havoc processEnvironment_#t~ret9#1;" "assume !(0 != processEnvironment_~tmp~2#1);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment_#t~ret9#1, processEnvironment_~tmp~2#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_#t~ret52#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#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;" "__utac_acc__Specification3_spec__1_#t~ret50#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret50#1;havoc __utac_acc__Specification3_spec__1_#t~ret50#1;" "assume !(0 != __utac_acc__Specification3_spec__1_~tmp~8#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;" "__utac_acc__Specification3_spec__1_#t~ret51#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~2#1 := __utac_acc__Specification3_spec__1_#t~ret51#1;havoc __utac_acc__Specification3_spec__1_#t~ret51#1;" "assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~2#1);" "havoc __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_#t~ret52#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2024-11-23 23:48:37,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:48:37,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 6 times [2024-11-23 23:48:37,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-23 23:48:37,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013707742] [2024-11-23 23:48:37,367 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:48:37,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:48:37,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:48:37,382 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 23:48:37,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:48:37,394 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-23 23:48:37,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:48:37,398 INFO L85 PathProgramCache]: Analyzing trace with hash 1233943977, now seen corresponding path program 1 times [2024-11-23 23:48:37,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-23 23:48:37,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957069987] [2024-11-23 23:48:37,400 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:48:37,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:48:37,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:48:37,420 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 23:48:37,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:48:37,433 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-23 23:48:37,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:48:37,435 INFO L85 PathProgramCache]: Analyzing trace with hash 1609231717, now seen corresponding path program 1 times [2024-11-23 23:48:37,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-23 23:48:37,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134278472] [2024-11-23 23:48:37,435 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:48:37,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:48:37,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:48:37,459 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 23:48:37,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:48:37,486 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-23 23:48:38,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:48:38,788 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 23:48:38,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:48:38,869 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.11 11:48:38 BoogieIcfgContainer [2024-11-23 23:48:38,869 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-23 23:48:38,870 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-23 23:48:38,870 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-23 23:48:38,870 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-23 23:48:38,871 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:48:33" (3/4) ... [2024-11-23 23:48:38,873 INFO L143 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-23 23:48:38,946 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_193eb140-b7b4-470d-8209-76d801fbc1d4/bin/uautomizer-verify-LYvppIcaGC/witness.graphml [2024-11-23 23:48:38,947 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-23 23:48:38,951 INFO L158 Benchmark]: Toolchain (without parser) took 6490.85ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 93.6MB in the beginning and 161.4MB in the end (delta: -67.8MB). Peak memory consumption was 168.3MB. Max. memory is 16.1GB. [2024-11-23 23:48:38,951 INFO L158 Benchmark]: CDTParser took 0.87ms. Allocated memory is still 142.6MB. Free memory is still 79.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 23:48:38,952 INFO L158 Benchmark]: CACSL2BoogieTranslator took 633.60ms. Allocated memory is still 117.4MB. Free memory was 93.6MB in the beginning and 75.3MB in the end (delta: 18.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-23 23:48:38,952 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.40ms. Allocated memory is still 117.4MB. Free memory was 75.3MB in the beginning and 72.8MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 23:48:38,952 INFO L158 Benchmark]: Boogie Preprocessor took 73.88ms. Allocated memory is still 117.4MB. Free memory was 72.8MB in the beginning and 70.4MB in the end (delta: 2.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-23 23:48:38,953 INFO L158 Benchmark]: RCFGBuilder took 689.11ms. Allocated memory is still 117.4MB. Free memory was 70.1MB in the beginning and 48.6MB in the end (delta: 21.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-23 23:48:38,954 INFO L158 Benchmark]: BuchiAutomizer took 4923.85ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 48.6MB in the beginning and 164.2MB in the end (delta: -115.6MB). Peak memory consumption was 118.0MB. Max. memory is 16.1GB. [2024-11-23 23:48:38,954 INFO L158 Benchmark]: Witness Printer took 77.56ms. Allocated memory is still 352.3MB. Free memory was 164.2MB in the beginning and 161.4MB in the end (delta: 2.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-23 23:48:38,956 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.87ms. Allocated memory is still 142.6MB. Free memory is still 79.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 633.60ms. Allocated memory is still 117.4MB. Free memory was 93.6MB in the beginning and 75.3MB in the end (delta: 18.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 82.40ms. Allocated memory is still 117.4MB. Free memory was 75.3MB in the beginning and 72.8MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 73.88ms. Allocated memory is still 117.4MB. Free memory was 72.8MB in the beginning and 70.4MB in the end (delta: 2.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 689.11ms. Allocated memory is still 117.4MB. Free memory was 70.1MB in the beginning and 48.6MB in the end (delta: 21.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 4923.85ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 48.6MB in the beginning and 164.2MB in the end (delta: -115.6MB). Peak memory consumption was 118.0MB. Max. memory is 16.1GB. * Witness Printer took 77.56ms. Allocated memory is still 352.3MB. Free memory was 164.2MB in the beginning and 161.4MB in the end (delta: 2.8MB). Peak memory consumption was 8.4MB. 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,"Test.i","") [49] - GenericResultAtLocation [Line: 153]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [153] - GenericResultAtLocation [Line: 221]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [221] - GenericResultAtLocation [Line: 407]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [407] - GenericResultAtLocation [Line: 502]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [502] - GenericResultAtLocation [Line: 511]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [511] - GenericResultAtLocation [Line: 546]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [546] - GenericResultAtLocation [Line: 912]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [912] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (5 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.5 modules have a trivial ranking function, the largest among these consists of 7 locations. The remainder module has 361 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.7s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 3.9s. Construction of modules took 0.2s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 0. Minimization of det autom 5. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 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, 515 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 515 mSDsluCounter, 2085 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1387 mSDsCounter, 42 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 195 IncrementalHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 42 mSolverCounterUnsat, 698 mSDtfsCounter, 195 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI3 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: 167]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L50] int cleanupTimeShifts = 4; [L229] int pumpRunning = 0; [L230] int systemActive = 1; [L409] int waterLevel = 1; [L410] int methaneLevelCritical = 0; [L716] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L131] int retValue_acc ; [L132] int tmp ; [L136] FCALL select_helpers() [L137] FCALL select_features() [L138] CALL, EXPR valid_product() [L538] int retValue_acc ; [L541] retValue_acc = 1 [L542] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L138] RET, EXPR valid_product() [L138] tmp = valid_product() [L140] COND TRUE \read(tmp) [L142] FCALL setup() [L143] CALL runTest() [L122] CALL test() [L156] int splverifierCounter ; [L157] int tmp ; [L158] int tmp___0 ; [L159] int tmp___1 ; [L160] int tmp___2 ; [L163] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L167] COND TRUE splverifierCounter < 4 [L173] tmp = __VERIFIER_nondet_int() [L175] COND FALSE !(\read(tmp)) [L183] tmp___0 = __VERIFIER_nondet_int() [L185] COND FALSE !(\read(tmp___0)) [L193] tmp___2 = __VERIFIER_nondet_int() [L195] COND TRUE \read(tmp___2) [L197] CALL startSystem() [L403] systemActive = 1 [L197] RET startSystem() [L210] CALL timeShift() [L237] COND FALSE !(\read(pumpRunning)) [L244] COND TRUE \read(systemActive) [L246] CALL processEnvironment() [L266] int tmp ; [L269] COND TRUE ! pumpRunning [L271] CALL, EXPR isHighWaterLevel() [L381] int retValue_acc ; [L382] int tmp ; [L383] int tmp___0 ; [L387] CALL, EXPR isHighWaterSensorDry() [L489] int retValue_acc ; [L492] COND TRUE waterLevel < 2 [L493] retValue_acc = 1 [L494] return (retValue_acc); [L387] RET, EXPR isHighWaterSensorDry() [L387] tmp = isHighWaterSensorDry() [L389] COND TRUE \read(tmp) [L390] tmp___0 = 0 [L394] retValue_acc = tmp___0 [L395] return (retValue_acc); [L271] RET, EXPR isHighWaterLevel() [L271] tmp = isHighWaterLevel() [L273] COND FALSE !(\read(tmp)) [L279] FCALL processEnvironment__wrappee__base() [L246] RET processEnvironment() [L252] CALL __utac_acc__Specification3_spec__1() [L914] int tmp ; [L915] int tmp___0 ; [L916] int tmp___1 ; [L920] CALL, EXPR isMethaneLevelCritical() [L448] int retValue_acc ; [L451] retValue_acc = methaneLevelCritical [L452] return (retValue_acc); [L920] RET, EXPR isMethaneLevelCritical() [L920] tmp = isMethaneLevelCritical() [L922] COND FALSE !(\read(tmp)) [L926] CALL, EXPR getWaterLevel() [L480] int retValue_acc ; [L483] retValue_acc = waterLevel [L484] return (retValue_acc); [L926] RET, EXPR getWaterLevel() [L926] tmp___0 = getWaterLevel() [L928] COND FALSE !(tmp___0 == 2) [L252] RET __utac_acc__Specification3_spec__1() [L210] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 167]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L50] int cleanupTimeShifts = 4; [L229] int pumpRunning = 0; [L230] int systemActive = 1; [L409] int waterLevel = 1; [L410] int methaneLevelCritical = 0; [L716] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L131] int retValue_acc ; [L132] int tmp ; [L136] FCALL select_helpers() [L137] FCALL select_features() [L138] CALL, EXPR valid_product() [L538] int retValue_acc ; [L541] retValue_acc = 1 [L542] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L138] RET, EXPR valid_product() [L138] tmp = valid_product() [L140] COND TRUE \read(tmp) [L142] FCALL setup() [L143] CALL runTest() [L122] CALL test() [L156] int splverifierCounter ; [L157] int tmp ; [L158] int tmp___0 ; [L159] int tmp___1 ; [L160] int tmp___2 ; [L163] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L167] COND TRUE splverifierCounter < 4 [L173] tmp = __VERIFIER_nondet_int() [L175] COND FALSE !(\read(tmp)) [L183] tmp___0 = __VERIFIER_nondet_int() [L185] COND FALSE !(\read(tmp___0)) [L193] tmp___2 = __VERIFIER_nondet_int() [L195] COND TRUE \read(tmp___2) [L197] CALL startSystem() [L403] systemActive = 1 [L197] RET startSystem() [L210] CALL timeShift() [L237] COND FALSE !(\read(pumpRunning)) [L244] COND TRUE \read(systemActive) [L246] CALL processEnvironment() [L266] int tmp ; [L269] COND TRUE ! pumpRunning [L271] CALL, EXPR isHighWaterLevel() [L381] int retValue_acc ; [L382] int tmp ; [L383] int tmp___0 ; [L387] CALL, EXPR isHighWaterSensorDry() [L489] int retValue_acc ; [L492] COND TRUE waterLevel < 2 [L493] retValue_acc = 1 [L494] return (retValue_acc); [L387] RET, EXPR isHighWaterSensorDry() [L387] tmp = isHighWaterSensorDry() [L389] COND TRUE \read(tmp) [L390] tmp___0 = 0 [L394] retValue_acc = tmp___0 [L395] return (retValue_acc); [L271] RET, EXPR isHighWaterLevel() [L271] tmp = isHighWaterLevel() [L273] COND FALSE !(\read(tmp)) [L279] FCALL processEnvironment__wrappee__base() [L246] RET processEnvironment() [L252] CALL __utac_acc__Specification3_spec__1() [L914] int tmp ; [L915] int tmp___0 ; [L916] int tmp___1 ; [L920] CALL, EXPR isMethaneLevelCritical() [L448] int retValue_acc ; [L451] retValue_acc = methaneLevelCritical [L452] return (retValue_acc); [L920] RET, EXPR isMethaneLevelCritical() [L920] tmp = isMethaneLevelCritical() [L922] COND FALSE !(\read(tmp)) [L926] CALL, EXPR getWaterLevel() [L480] int retValue_acc ; [L483] retValue_acc = waterLevel [L484] return (retValue_acc); [L926] RET, EXPR getWaterLevel() [L926] tmp___0 = getWaterLevel() [L928] COND FALSE !(tmp___0 == 2) [L252] RET __utac_acc__Specification3_spec__1() [L210] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-23 23:48:38,983 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_193eb140-b7b4-470d-8209-76d801fbc1d4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-23 23:48:39,178 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_193eb140-b7b4-470d-8209-76d801fbc1d4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-23 23:48:39,378 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_193eb140-b7b4-470d-8209-76d801fbc1d4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-23 23:48:39,578 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_193eb140-b7b4-470d-8209-76d801fbc1d4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-23 23:48:39,778 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_193eb140-b7b4-470d-8209-76d801fbc1d4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-23 23:48:39,979 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_193eb140-b7b4-470d-8209-76d801fbc1d4/bin/uautomizer-verify-LYvppIcaGC/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)