./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product40.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b46685e-84ff-4f38-b337-29609bec75a5/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b46685e-84ff-4f38-b337-29609bec75a5/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b46685e-84ff-4f38-b337-29609bec75a5/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b46685e-84ff-4f38-b337-29609bec75a5/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product40.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b46685e-84ff-4f38-b337-29609bec75a5/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b46685e-84ff-4f38-b337-29609bec75a5/bin/uautomizer-verify-uCwYo4JHxu --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 7e5f42a5bbc52e8ca75c0ac5e2c6aad044a3ab94096d236f597eae12e8fb5e5c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:43:54,419 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:43:54,489 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b46685e-84ff-4f38-b337-29609bec75a5/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-19 07:43:54,494 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:43:54,495 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:43:54,540 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:43:54,541 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:43:54,542 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:43:54,543 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:43:54,549 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:43:54,549 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:43:54,550 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-19 07:43:54,551 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-19 07:43:54,553 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-19 07:43:54,553 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-19 07:43:54,554 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-19 07:43:54,554 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-19 07:43:54,555 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:43:54,556 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-19 07:43:54,556 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:43:54,557 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:43:54,557 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:43:54,558 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:43:54,558 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-19 07:43:54,559 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-19 07:43:54,559 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-19 07:43:54,560 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:43:54,561 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:43:54,561 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:43:54,562 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-19 07:43:54,563 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:43:54,563 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:43:54,564 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:43:54,564 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:43:54,564 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:43:54,565 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-19 07:43:54,565 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b46685e-84ff-4f38-b337-29609bec75a5/bin/uautomizer-verify-uCwYo4JHxu/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b46685e-84ff-4f38-b337-29609bec75a5/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e5f42a5bbc52e8ca75c0ac5e2c6aad044a3ab94096d236f597eae12e8fb5e5c [2023-11-19 07:43:54,913 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:43:54,953 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:43:54,956 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:43:54,957 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:43:54,959 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:43:54,961 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b46685e-84ff-4f38-b337-29609bec75a5/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/product-lines/minepump_spec3_product40.cil.c [2023-11-19 07:43:58,135 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:43:58,540 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:43:58,541 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b46685e-84ff-4f38-b337-29609bec75a5/sv-benchmarks/c/product-lines/minepump_spec3_product40.cil.c [2023-11-19 07:43:58,574 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b46685e-84ff-4f38-b337-29609bec75a5/bin/uautomizer-verify-uCwYo4JHxu/data/62eda3adf/9e448868f0ee4a168235bd8d90016224/FLAG8d6f6e55e [2023-11-19 07:43:58,594 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b46685e-84ff-4f38-b337-29609bec75a5/bin/uautomizer-verify-uCwYo4JHxu/data/62eda3adf/9e448868f0ee4a168235bd8d90016224 [2023-11-19 07:43:58,596 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:43:58,598 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:43:58,599 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:43:58,599 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:43:58,605 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:43:58,606 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:43:58" (1/1) ... [2023-11-19 07:43:58,607 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70d23be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:58, skipping insertion in model container [2023-11-19 07:43:58,607 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:43:58" (1/1) ... [2023-11-19 07:43:58,660 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:43:58,939 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:43:58,955 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:43:58,966 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [49] [2023-11-19 07:43:58,968 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [153] [2023-11-19 07:43:58,968 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [188] [2023-11-19 07:43:58,968 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [226] [2023-11-19 07:43:58,969 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [235] [2023-11-19 07:43:58,969 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [332] [2023-11-19 07:43:58,969 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [537] [2023-11-19 07:43:58,970 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [606] [2023-11-19 07:43:59,077 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:43:59,109 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:43:59,110 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:59 WrapperNode [2023-11-19 07:43:59,110 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:43:59,111 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:43:59,112 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:43:59,112 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:43:59,120 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:59" (1/1) ... [2023-11-19 07:43:59,147 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:59" (1/1) ... [2023-11-19 07:43:59,207 INFO L138 Inliner]: procedures = 55, calls = 102, calls flagged for inlining = 55, calls inlined = 86, statements flattened = 574 [2023-11-19 07:43:59,207 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:43:59,208 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:43:59,208 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:43:59,208 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:43:59,219 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:59" (1/1) ... [2023-11-19 07:43:59,220 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:59" (1/1) ... [2023-11-19 07:43:59,223 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:59" (1/1) ... [2023-11-19 07:43:59,224 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:59" (1/1) ... [2023-11-19 07:43:59,241 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:59" (1/1) ... [2023-11-19 07:43:59,248 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:59" (1/1) ... [2023-11-19 07:43:59,264 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:59" (1/1) ... [2023-11-19 07:43:59,277 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:59" (1/1) ... [2023-11-19 07:43:59,281 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:43:59,284 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:43:59,284 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:43:59,284 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:43:59,285 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:59" (1/1) ... [2023-11-19 07:43:59,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:43:59,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b46685e-84ff-4f38-b337-29609bec75a5/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:43:59,318 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b46685e-84ff-4f38-b337-29609bec75a5/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:43:59,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b46685e-84ff-4f38-b337-29609bec75a5/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-19 07:43:59,353 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:43:59,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:43:59,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:43:59,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:43:59,447 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:43:59,450 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:44:00,059 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:44:00,073 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:44:00,073 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 07:44:00,080 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:44:00 BoogieIcfgContainer [2023-11-19 07:44:00,080 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:44:00,082 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-19 07:44:00,082 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-19 07:44:00,086 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-19 07:44:00,087 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:44:00,088 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 07:43:58" (1/3) ... [2023-11-19 07:44:00,088 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@693c3c23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 07:44:00, skipping insertion in model container [2023-11-19 07:44:00,089 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:44:00,089 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:59" (2/3) ... [2023-11-19 07:44:00,089 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@693c3c23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 07:44:00, skipping insertion in model container [2023-11-19 07:44:00,090 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:44:00,090 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:44:00" (3/3) ... [2023-11-19 07:44:00,092 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product40.cil.c [2023-11-19 07:44:00,188 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-19 07:44:00,188 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-19 07:44:00,189 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-19 07:44:00,189 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-19 07:44:00,190 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-19 07:44:00,191 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-19 07:44:00,191 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-19 07:44:00,192 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-19 07:44:00,204 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 170 states, 169 states have (on average 1.3668639053254439) internal successors, (231), 169 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) [2023-11-19 07:44:00,242 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 111 [2023-11-19 07:44:00,243 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:44:00,243 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:44:00,251 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:44:00,251 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:44:00,251 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-19 07:44:00,253 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 170 states, 169 states have (on average 1.3668639053254439) internal successors, (231), 169 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) [2023-11-19 07:44:00,266 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 111 [2023-11-19 07:44:00,266 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:44:00,266 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:44:00,267 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:44:00,268 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:44:00,274 INFO L748 eck$LassoCheckResult]: Stem: 34#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(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;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 45#L-1true 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; 26#select_helpers_returnLabel#1true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 135#select_features_returnLabel#1true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~2#1;havoc valid_product_~retValue_acc~2#1;valid_product_~retValue_acc~2#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~2#1; 117#valid_product_returnLabel#1true main_#t~ret4#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~2#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 65#L140true assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 87#setup_returnLabel#1true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet26#1, test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~2#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 17#L548-2true [2023-11-19 07:44:00,275 INFO L750 eck$LassoCheckResult]: Loop: 17#L548-2true assume !false; 54#L549true assume test_~splverifierCounter~0#1 < 4; 169#L550true havoc test_#t~nondet26#1;test_~tmp~5#1 := test_#t~nondet26#1;havoc test_#t~nondet26#1; 164#L558true assume !(0 != test_~tmp~5#1); 156#L558-2true havoc test_#t~nondet27#1;test_~tmp___0~2#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 170#L568true assume !(0 != test_~tmp___0~2#1); 36#L568-2true havoc test_#t~nondet28#1;test_~tmp___2~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 52#L578true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 63#startSystem_returnLabel#1true assume { :end_inline_startSystem } true; 166#L586-2true assume { :begin_inline_timeShift } true; 35#L344true assume !(0 != ~pumpRunning~0); 97#L344-2true assume !(0 != ~systemActive~0); 30#L351-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_#t~ret7#1, __utac_acc__Specification3_spec__1_#t~ret8#1, __utac_acc__Specification3_spec__1_~tmp~1#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~1#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 85#isMethaneLevelCritical_returnLabel#2true __utac_acc__Specification3_spec__1_#t~ret6#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~1#1 := __utac_acc__Specification3_spec__1_#t~ret6#1;havoc __utac_acc__Specification3_spec__1_#t~ret6#1; 110#L202true assume 0 != __utac_acc__Specification3_spec__1_~tmp~1#1; 59#L208-1true havoc __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_#t~ret7#1, __utac_acc__Specification3_spec__1_#t~ret8#1, __utac_acc__Specification3_spec__1_~tmp~1#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 74#timeShift_returnLabel#1true assume { :end_inline_timeShift } true; 17#L548-2true [2023-11-19 07:44:00,282 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:44:00,282 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2023-11-19 07:44:00,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:44:00,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434345108] [2023-11-19 07:44:00,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:44:00,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:44:00,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:44:00,411 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:44:00,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:44:00,452 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:44:00,456 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:44:00,456 INFO L85 PathProgramCache]: Analyzing trace with hash 2145907923, now seen corresponding path program 1 times [2023-11-19 07:44:00,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:44:00,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593250312] [2023-11-19 07:44:00,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:44:00,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:44:00,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:00,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:44:00,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:44:00,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593250312] [2023-11-19 07:44:00,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593250312] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:44:00,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:44:00,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:44:00,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193605736] [2023-11-19 07:44:00,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:44:00,561 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-19 07:44:00,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:44:00,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:44:00,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:44:00,604 INFO L87 Difference]: Start difference. First operand has 170 states, 169 states have (on average 1.3668639053254439) internal successors, (231), 169 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) Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:44:00,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:44:00,696 INFO L93 Difference]: Finished difference Result 319 states and 423 transitions. [2023-11-19 07:44:00,698 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 319 states and 423 transitions. [2023-11-19 07:44:00,710 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 208 [2023-11-19 07:44:00,718 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 319 states to 299 states and 402 transitions. [2023-11-19 07:44:00,719 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 299 [2023-11-19 07:44:00,721 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 299 [2023-11-19 07:44:00,722 INFO L73 IsDeterministic]: Start isDeterministic. Operand 299 states and 402 transitions. [2023-11-19 07:44:00,727 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:44:00,727 INFO L218 hiAutomatonCegarLoop]: Abstraction has 299 states and 402 transitions. [2023-11-19 07:44:00,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states and 402 transitions. [2023-11-19 07:44:00,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 296. [2023-11-19 07:44:00,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 296 states have (on average 1.3445945945945945) internal successors, (398), 295 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:44:00,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 398 transitions. [2023-11-19 07:44:00,777 INFO L240 hiAutomatonCegarLoop]: Abstraction has 296 states and 398 transitions. [2023-11-19 07:44:00,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:44:00,788 INFO L428 stractBuchiCegarLoop]: Abstraction has 296 states and 398 transitions. [2023-11-19 07:44:00,788 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-19 07:44:00,788 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 296 states and 398 transitions. [2023-11-19 07:44:00,792 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 205 [2023-11-19 07:44:00,794 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:44:00,795 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:44:00,796 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:44:00,796 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:44:00,796 INFO L748 eck$LassoCheckResult]: Stem: 553#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(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;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 554#L-1 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; 541#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 542#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~2#1;havoc valid_product_~retValue_acc~2#1;valid_product_~retValue_acc~2#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~2#1; 644#valid_product_returnLabel#1 main_#t~ret4#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~2#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 590#L140 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 591#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet26#1, test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~2#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 616#L548-2 [2023-11-19 07:44:00,797 INFO L750 eck$LassoCheckResult]: Loop: 616#L548-2 assume !false; 687#L549 assume test_~splverifierCounter~0#1 < 4; 675#L550 havoc test_#t~nondet26#1;test_~tmp~5#1 := test_#t~nondet26#1;havoc test_#t~nondet26#1; 674#L558 assume !(0 != test_~tmp~5#1); 573#L558-2 havoc test_#t~nondet27#1;test_~tmp___0~2#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 672#L568 assume !(0 != test_~tmp___0~2#1); 557#L568-2 havoc test_#t~nondet28#1;test_~tmp___2~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 558#L578 assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet29#1;test_~tmp___1~1#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 577#L586 assume !(0 != test_~tmp___1~1#1); 588#L586-2 assume { :begin_inline_timeShift } true; 555#L344 assume !(0 != ~pumpRunning~0); 556#L344-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret15#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 623#L402 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret14#1, processEnvironment__wrappee__highWaterSensor_~tmp~2#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2#1; 510#L376-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 498#processEnvironment__wrappee__base_returnLabel#4 assume { :end_inline_processEnvironment__wrappee__base } true; 499#L376-3 havoc processEnvironment__wrappee__highWaterSensor_#t~ret14#1, processEnvironment__wrappee__highWaterSensor_~tmp~2#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 508#L402-1 havoc processEnvironment_#t~ret15#1, processEnvironment_~tmp~3#1;assume { :end_inline_processEnvironment } true; 509#L351-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_#t~ret7#1, __utac_acc__Specification3_spec__1_#t~ret8#1, __utac_acc__Specification3_spec__1_~tmp~1#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~1#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 547#isMethaneLevelCritical_returnLabel#2 __utac_acc__Specification3_spec__1_#t~ret6#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~1#1 := __utac_acc__Specification3_spec__1_#t~ret6#1;havoc __utac_acc__Specification3_spec__1_#t~ret6#1; 615#L202 assume 0 != __utac_acc__Specification3_spec__1_~tmp~1#1; 689#L208-1 havoc __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_#t~ret7#1, __utac_acc__Specification3_spec__1_#t~ret8#1, __utac_acc__Specification3_spec__1_~tmp~1#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 688#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 616#L548-2 [2023-11-19 07:44:00,798 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:44:00,798 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2023-11-19 07:44:00,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:44:00,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655863459] [2023-11-19 07:44:00,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:44:00,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:44:00,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:44:00,822 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:44:00,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:44:00,854 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:44:00,855 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:44:00,855 INFO L85 PathProgramCache]: Analyzing trace with hash 1941547799, now seen corresponding path program 1 times [2023-11-19 07:44:00,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:44:00,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801980311] [2023-11-19 07:44:00,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:44:00,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:44:00,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:00,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:44:00,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:44:00,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801980311] [2023-11-19 07:44:00,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801980311] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:44:00,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:44:00,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:44:00,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040945732] [2023-11-19 07:44:00,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:44:00,930 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-19 07:44:00,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:44:00,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:44:00,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:44:00,932 INFO L87 Difference]: Start difference. First operand 296 states and 398 transitions. cyclomatic complexity: 105 Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:44:01,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:44:01,123 INFO L93 Difference]: Finished difference Result 420 states and 545 transitions. [2023-11-19 07:44:01,123 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 420 states and 545 transitions. [2023-11-19 07:44:01,129 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 299 [2023-11-19 07:44:01,134 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 420 states to 420 states and 545 transitions. [2023-11-19 07:44:01,149 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 420 [2023-11-19 07:44:01,152 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 420 [2023-11-19 07:44:01,152 INFO L73 IsDeterministic]: Start isDeterministic. Operand 420 states and 545 transitions. [2023-11-19 07:44:01,161 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:44:01,162 INFO L218 hiAutomatonCegarLoop]: Abstraction has 420 states and 545 transitions. [2023-11-19 07:44:01,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states and 545 transitions. [2023-11-19 07:44:01,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 420. [2023-11-19 07:44:01,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 420 states have (on average 1.2976190476190477) internal successors, (545), 419 states have internal predecessors, (545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:44:01,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 545 transitions. [2023-11-19 07:44:01,219 INFO L240 hiAutomatonCegarLoop]: Abstraction has 420 states and 545 transitions. [2023-11-19 07:44:01,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:44:01,221 INFO L428 stractBuchiCegarLoop]: Abstraction has 420 states and 545 transitions. [2023-11-19 07:44:01,221 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-19 07:44:01,221 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 420 states and 545 transitions. [2023-11-19 07:44:01,227 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 299 [2023-11-19 07:44:01,229 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:44:01,229 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:44:01,231 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:44:01,233 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:44:01,235 INFO L748 eck$LassoCheckResult]: Stem: 1276#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(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;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 1277#L-1 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; 1262#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1263#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~2#1;havoc valid_product_~retValue_acc~2#1;valid_product_~retValue_acc~2#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~2#1; 1367#valid_product_returnLabel#1 main_#t~ret4#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~2#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 1316#L140 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 1317#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet26#1, test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~2#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1338#L548-2 [2023-11-19 07:44:01,236 INFO L750 eck$LassoCheckResult]: Loop: 1338#L548-2 assume !false; 1610#L549 assume test_~splverifierCounter~0#1 < 4; 1404#L550 havoc test_#t~nondet26#1;test_~tmp~5#1 := test_#t~nondet26#1;havoc test_#t~nondet26#1; 1402#L558 assume !(0 != test_~tmp~5#1); 1294#L558-2 havoc test_#t~nondet27#1;test_~tmp___0~2#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 1400#L568 assume !(0 != test_~tmp___0~2#1); 1278#L568-2 havoc test_#t~nondet28#1;test_~tmp___2~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 1279#L578 assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet29#1;test_~tmp___1~1#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 1300#L586 assume !(0 != test_~tmp___1~1#1); 1312#L586-2 assume { :begin_inline_timeShift } true; 1274#L344 assume !(0 != ~pumpRunning~0); 1275#L344-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret15#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 1351#L402 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret14#1, processEnvironment__wrappee__highWaterSensor_~tmp~2#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2#1; 1231#L376-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret25#1, isHighWaterLevel_~retValue_acc~8#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~8#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~5#1;havoc isHighWaterSensorDry_~retValue_acc~5#1; 1232#L322-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~5#1; 1403#isHighWaterSensorDry_returnLabel#2 isHighWaterLevel_#t~ret25#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret25#1;havoc isHighWaterLevel_#t~ret25#1; 1473#L504-3 assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~1#1 := 0; 1257#L504-5 isHighWaterLevel_~retValue_acc~8#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~8#1; 1258#isHighWaterLevel_returnLabel#2 processEnvironment__wrappee__highWaterSensor_#t~ret14#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret25#1, isHighWaterLevel_~retValue_acc~8#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~2#1 := processEnvironment__wrappee__highWaterSensor_#t~ret14#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret14#1; 1386#L380-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~2#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1468#processEnvironment__wrappee__base_returnLabel#3 assume { :end_inline_processEnvironment__wrappee__base } true; 1622#L376-3 havoc processEnvironment__wrappee__highWaterSensor_#t~ret14#1, processEnvironment__wrappee__highWaterSensor_~tmp~2#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1620#L402-1 havoc processEnvironment_#t~ret15#1, processEnvironment_~tmp~3#1;assume { :end_inline_processEnvironment } true; 1619#L351-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_#t~ret7#1, __utac_acc__Specification3_spec__1_#t~ret8#1, __utac_acc__Specification3_spec__1_~tmp~1#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~1#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 1618#isMethaneLevelCritical_returnLabel#2 __utac_acc__Specification3_spec__1_#t~ret6#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~1#1 := __utac_acc__Specification3_spec__1_#t~ret6#1;havoc __utac_acc__Specification3_spec__1_#t~ret6#1; 1616#L202 assume 0 != __utac_acc__Specification3_spec__1_~tmp~1#1; 1612#L208-1 havoc __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_#t~ret7#1, __utac_acc__Specification3_spec__1_#t~ret8#1, __utac_acc__Specification3_spec__1_~tmp~1#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1611#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1338#L548-2 [2023-11-19 07:44:01,237 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:44:01,238 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2023-11-19 07:44:01,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:44:01,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964011017] [2023-11-19 07:44:01,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:44:01,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:44:01,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:44:01,263 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:44:01,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:44:01,292 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:44:01,294 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:44:01,294 INFO L85 PathProgramCache]: Analyzing trace with hash -1563476913, now seen corresponding path program 1 times [2023-11-19 07:44:01,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:44:01,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129838781] [2023-11-19 07:44:01,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:44:01,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:44:01,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:44:01,316 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:44:01,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:44:01,330 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:44:01,331 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:44:01,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1480508435, now seen corresponding path program 1 times [2023-11-19 07:44:01,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:44:01,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236224236] [2023-11-19 07:44:01,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:44:01,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:44:01,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:01,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:44:01,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:44:01,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236224236] [2023-11-19 07:44:01,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236224236] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:44:01,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:44:01,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:44:01,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949109330] [2023-11-19 07:44:01,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:44:01,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:44:01,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:44:01,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:44:01,801 INFO L87 Difference]: Start difference. First operand 420 states and 545 transitions. cyclomatic complexity: 128 Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:44:01,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:44:01,938 INFO L93 Difference]: Finished difference Result 1015 states and 1302 transitions. [2023-11-19 07:44:01,938 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1015 states and 1302 transitions. [2023-11-19 07:44:01,948 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 748 [2023-11-19 07:44:01,958 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1015 states to 1015 states and 1302 transitions. [2023-11-19 07:44:01,958 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1015 [2023-11-19 07:44:01,959 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1015 [2023-11-19 07:44:01,959 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1015 states and 1302 transitions. [2023-11-19 07:44:01,961 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:44:01,961 INFO L218 hiAutomatonCegarLoop]: Abstraction has 1015 states and 1302 transitions. [2023-11-19 07:44:01,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1015 states and 1302 transitions. [2023-11-19 07:44:01,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1015 to 833. [2023-11-19 07:44:01,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 833 states, 833 states have (on average 1.2809123649459784) internal successors, (1067), 832 states have internal predecessors, (1067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:44:02,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 833 states to 833 states and 1067 transitions. [2023-11-19 07:44:02,003 INFO L240 hiAutomatonCegarLoop]: Abstraction has 833 states and 1067 transitions. [2023-11-19 07:44:02,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 07:44:02,005 INFO L428 stractBuchiCegarLoop]: Abstraction has 833 states and 1067 transitions. [2023-11-19 07:44:02,005 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-19 07:44:02,005 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 833 states and 1067 transitions. [2023-11-19 07:44:02,012 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 598 [2023-11-19 07:44:02,012 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:44:02,012 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:44:02,015 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:44:02,015 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:44:02,016 INFO L748 eck$LassoCheckResult]: Stem: 2724#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(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;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 2725#L-1 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; 2710#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2711#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~2#1;havoc valid_product_~retValue_acc~2#1;valid_product_~retValue_acc~2#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~2#1; 2820#valid_product_returnLabel#1 main_#t~ret4#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~2#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 2766#L140 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 2767#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet26#1, test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~2#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2694#L548-2 [2023-11-19 07:44:02,016 INFO L750 eck$LassoCheckResult]: Loop: 2694#L548-2 assume !false; 2695#L549 assume test_~splverifierCounter~0#1 < 4; 3135#L550 havoc test_#t~nondet26#1;test_~tmp~5#1 := test_#t~nondet26#1;havoc test_#t~nondet26#1; 3134#L558 assume !(0 != test_~tmp~5#1); 2847#L558-2 havoc test_#t~nondet27#1;test_~tmp___0~2#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 2848#L568 assume !(0 != test_~tmp___0~2#1); 2853#L568-2 havoc test_#t~nondet28#1;test_~tmp___2~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 3098#L578 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 3079#startSystem_returnLabel#1 assume { :end_inline_startSystem } true; 3048#L586-2 assume { :begin_inline_timeShift } true; 3046#L344 assume !(0 != ~pumpRunning~0); 3017#L344-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret15#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 3044#L402 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret14#1, processEnvironment__wrappee__highWaterSensor_~tmp~2#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2#1; 3005#L376-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret25#1, isHighWaterLevel_~retValue_acc~8#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~8#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~5#1;havoc isHighWaterSensorDry_~retValue_acc~5#1; 3042#L322-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~5#1; 3041#isHighWaterSensorDry_returnLabel#2 isHighWaterLevel_#t~ret25#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret25#1;havoc isHighWaterLevel_#t~ret25#1; 3040#L504-3 assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~1#1 := 0; 3039#L504-5 isHighWaterLevel_~retValue_acc~8#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~8#1; 3037#isHighWaterLevel_returnLabel#2 processEnvironment__wrappee__highWaterSensor_#t~ret14#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret25#1, isHighWaterLevel_~retValue_acc~8#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~2#1 := processEnvironment__wrappee__highWaterSensor_#t~ret14#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret14#1; 3033#L380-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~2#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 3034#processEnvironment__wrappee__base_returnLabel#3 assume { :end_inline_processEnvironment__wrappee__base } true; 3140#L376-3 havoc processEnvironment__wrappee__highWaterSensor_#t~ret14#1, processEnvironment__wrappee__highWaterSensor_~tmp~2#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 3139#L402-1 havoc processEnvironment_#t~ret15#1, processEnvironment_~tmp~3#1;assume { :end_inline_processEnvironment } true; 2716#L351-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_#t~ret7#1, __utac_acc__Specification3_spec__1_#t~ret8#1, __utac_acc__Specification3_spec__1_~tmp~1#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~1#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 2717#isMethaneLevelCritical_returnLabel#2 __utac_acc__Specification3_spec__1_#t~ret6#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~1#1 := __utac_acc__Specification3_spec__1_#t~ret6#1;havoc __utac_acc__Specification3_spec__1_#t~ret6#1; 2812#L202 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~1#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;havoc getWaterLevel_~retValue_acc~4#1;getWaterLevel_~retValue_acc~4#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~4#1; 2813#getWaterLevel_returnLabel#1 __utac_acc__Specification3_spec__1_#t~ret7#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~0#1 := __utac_acc__Specification3_spec__1_#t~ret7#1;havoc __utac_acc__Specification3_spec__1_#t~ret7#1; 3138#L208 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0#1); 3137#L208-1 havoc __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_#t~ret7#1, __utac_acc__Specification3_spec__1_#t~ret8#1, __utac_acc__Specification3_spec__1_~tmp~1#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 2775#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 2694#L548-2 [2023-11-19 07:44:02,017 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:44:02,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2023-11-19 07:44:02,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:44:02,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766820546] [2023-11-19 07:44:02,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:44:02,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:44:02,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:44:02,057 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:44:02,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:44:02,068 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:44:02,068 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:44:02,076 INFO L85 PathProgramCache]: Analyzing trace with hash -1915348718, now seen corresponding path program 1 times [2023-11-19 07:44:02,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:44:02,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605966647] [2023-11-19 07:44:02,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:44:02,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:44:02,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:44:02,094 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:44:02,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:44:02,111 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:44:02,112 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:44:02,112 INFO L85 PathProgramCache]: Analyzing trace with hash -1518157866, now seen corresponding path program 1 times [2023-11-19 07:44:02,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:44:02,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473644786] [2023-11-19 07:44:02,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:44:02,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:44:02,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:44:02,148 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:44:02,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:44:02,176 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:44:03,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:44:03,443 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:44:03,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:44:03,503 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 07:44:03 BoogieIcfgContainer [2023-11-19 07:44:03,503 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-19 07:44:03,504 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:44:03,504 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:44:03,504 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:44:03,505 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:44:00" (3/4) ... [2023-11-19 07:44:03,506 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2023-11-19 07:44:03,567 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b46685e-84ff-4f38-b337-29609bec75a5/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 07:44:03,567 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:44:03,568 INFO L158 Benchmark]: Toolchain (without parser) took 4969.84ms. Allocated memory was 130.0MB in the beginning and 157.3MB in the end (delta: 27.3MB). Free memory was 98.1MB in the beginning and 64.8MB in the end (delta: 33.3MB). Peak memory consumption was 62.0MB. Max. memory is 16.1GB. [2023-11-19 07:44:03,568 INFO L158 Benchmark]: CDTParser took 0.80ms. Allocated memory is still 107.0MB. Free memory is still 66.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:44:03,569 INFO L158 Benchmark]: CACSL2BoogieTranslator took 511.29ms. Allocated memory is still 130.0MB. Free memory was 97.7MB in the beginning and 78.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-19 07:44:03,569 INFO L158 Benchmark]: Boogie Procedure Inliner took 96.06ms. Allocated memory is still 130.0MB. Free memory was 78.8MB in the beginning and 75.6MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:44:03,570 INFO L158 Benchmark]: Boogie Preprocessor took 74.82ms. Allocated memory is still 130.0MB. Free memory was 75.6MB in the beginning and 73.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:44:03,570 INFO L158 Benchmark]: RCFGBuilder took 796.59ms. Allocated memory was 130.0MB in the beginning and 157.3MB in the end (delta: 27.3MB). Free memory was 73.5MB in the beginning and 117.5MB in the end (delta: -44.0MB). Peak memory consumption was 20.0MB. Max. memory is 16.1GB. [2023-11-19 07:44:03,571 INFO L158 Benchmark]: BuchiAutomizer took 3421.50ms. Allocated memory is still 157.3MB. Free memory was 117.5MB in the beginning and 67.9MB in the end (delta: 49.6MB). Peak memory consumption was 48.3MB. Max. memory is 16.1GB. [2023-11-19 07:44:03,571 INFO L158 Benchmark]: Witness Printer took 63.59ms. Allocated memory is still 157.3MB. Free memory was 67.9MB in the beginning and 64.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 07:44:03,574 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.80ms. Allocated memory is still 107.0MB. Free memory is still 66.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 511.29ms. Allocated memory is still 130.0MB. Free memory was 97.7MB in the beginning and 78.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 96.06ms. Allocated memory is still 130.0MB. Free memory was 78.8MB in the beginning and 75.6MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 74.82ms. Allocated memory is still 130.0MB. Free memory was 75.6MB in the beginning and 73.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 796.59ms. Allocated memory was 130.0MB in the beginning and 157.3MB in the end (delta: 27.3MB). Free memory was 73.5MB in the beginning and 117.5MB in the end (delta: -44.0MB). Peak memory consumption was 20.0MB. Max. memory is 16.1GB. * BuchiAutomizer took 3421.50ms. Allocated memory is still 157.3MB. Free memory was 117.5MB in the beginning and 67.9MB in the end (delta: 49.6MB). Peak memory consumption was 48.3MB. Max. memory is 16.1GB. * Witness Printer took 63.59ms. Allocated memory is still 157.3MB. Free memory was 67.9MB in the beginning and 64.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [49] - GenericResultAtLocation [Line: 153]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [153] - GenericResultAtLocation [Line: 188]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [188] - GenericResultAtLocation [Line: 226]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [226] - GenericResultAtLocation [Line: 235]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [235] - GenericResultAtLocation [Line: 332]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [332] - GenericResultAtLocation [Line: 537]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [537] - GenericResultAtLocation [Line: 606]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [606] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 833 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.3s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 2.4s. Construction of modules took 0.2s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 185 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 779 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 779 mSDsluCounter, 1744 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1002 mSDsCounter, 41 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 109 IncrementalHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 41 mSolverCounterUnsat, 742 mSDtfsCounter, 109 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc1 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: 548]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L50] int cleanupTimeShifts = 4; [L239] int waterLevel = 1; [L240] int methaneLevelCritical = 0; [L337] int pumpRunning = 0; [L338] int systemActive = 1; [L776] 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() [L180] int retValue_acc ; [L183] retValue_acc = 1 [L184] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, 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() [L539] int splverifierCounter ; [L540] int tmp ; [L541] int tmp___0 ; [L542] int tmp___1 ; [L543] int tmp___2 ; [L546] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L548] COND TRUE 1 [L550] COND TRUE splverifierCounter < 4 [L556] tmp = __VERIFIER_nondet_int() [L558] COND FALSE !(\read(tmp)) [L566] tmp___0 = __VERIFIER_nondet_int() [L568] COND FALSE !(\read(tmp___0)) [L576] tmp___2 = __VERIFIER_nondet_int() [L578] COND TRUE \read(tmp___2) [L580] CALL startSystem() [L533] systemActive = 1 [L580] RET startSystem() [L595] CALL timeShift() [L344] COND FALSE !(\read(pumpRunning)) [L351] COND TRUE \read(systemActive) [L353] CALL processEnvironment() [L399] int tmp ; [L402] COND FALSE !(\read(pumpRunning)) [L417] CALL processEnvironment__wrappee__highWaterSensor() [L373] int tmp ; [L376] COND TRUE ! pumpRunning [L378] CALL, EXPR isHighWaterLevel() [L496] int retValue_acc ; [L497] int tmp ; [L498] int tmp___0 ; [L502] CALL, EXPR isHighWaterSensorDry() [L319] int retValue_acc ; [L322] COND TRUE waterLevel < 2 [L323] retValue_acc = 1 [L324] return (retValue_acc); [L502] RET, EXPR isHighWaterSensorDry() [L502] tmp = isHighWaterSensorDry() [L504] COND TRUE \read(tmp) [L505] tmp___0 = 0 [L509] retValue_acc = tmp___0 [L510] return (retValue_acc); [L378] RET, EXPR isHighWaterLevel() [L378] tmp = isHighWaterLevel() [L380] COND FALSE !(\read(tmp)) [L386] FCALL processEnvironment__wrappee__base() [L417] RET processEnvironment__wrappee__highWaterSensor() [L353] RET processEnvironment() [L359] CALL __utac_acc__Specification3_spec__1() [L194] int tmp ; [L195] int tmp___0 ; [L196] int tmp___1 ; [L200] CALL, EXPR isMethaneLevelCritical() [L278] int retValue_acc ; [L281] retValue_acc = methaneLevelCritical [L282] return (retValue_acc); [L200] RET, EXPR isMethaneLevelCritical() [L200] tmp = isMethaneLevelCritical() [L202] COND FALSE !(\read(tmp)) [L206] CALL, EXPR getWaterLevel() [L310] int retValue_acc ; [L313] retValue_acc = waterLevel [L314] return (retValue_acc); [L206] RET, EXPR getWaterLevel() [L206] tmp___0 = getWaterLevel() [L208] COND FALSE !(tmp___0 == 2) [L359] RET __utac_acc__Specification3_spec__1() [L595] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 548]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L50] int cleanupTimeShifts = 4; [L239] int waterLevel = 1; [L240] int methaneLevelCritical = 0; [L337] int pumpRunning = 0; [L338] int systemActive = 1; [L776] 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() [L180] int retValue_acc ; [L183] retValue_acc = 1 [L184] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, 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() [L539] int splverifierCounter ; [L540] int tmp ; [L541] int tmp___0 ; [L542] int tmp___1 ; [L543] int tmp___2 ; [L546] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L548] COND TRUE 1 [L550] COND TRUE splverifierCounter < 4 [L556] tmp = __VERIFIER_nondet_int() [L558] COND FALSE !(\read(tmp)) [L566] tmp___0 = __VERIFIER_nondet_int() [L568] COND FALSE !(\read(tmp___0)) [L576] tmp___2 = __VERIFIER_nondet_int() [L578] COND TRUE \read(tmp___2) [L580] CALL startSystem() [L533] systemActive = 1 [L580] RET startSystem() [L595] CALL timeShift() [L344] COND FALSE !(\read(pumpRunning)) [L351] COND TRUE \read(systemActive) [L353] CALL processEnvironment() [L399] int tmp ; [L402] COND FALSE !(\read(pumpRunning)) [L417] CALL processEnvironment__wrappee__highWaterSensor() [L373] int tmp ; [L376] COND TRUE ! pumpRunning [L378] CALL, EXPR isHighWaterLevel() [L496] int retValue_acc ; [L497] int tmp ; [L498] int tmp___0 ; [L502] CALL, EXPR isHighWaterSensorDry() [L319] int retValue_acc ; [L322] COND TRUE waterLevel < 2 [L323] retValue_acc = 1 [L324] return (retValue_acc); [L502] RET, EXPR isHighWaterSensorDry() [L502] tmp = isHighWaterSensorDry() [L504] COND TRUE \read(tmp) [L505] tmp___0 = 0 [L509] retValue_acc = tmp___0 [L510] return (retValue_acc); [L378] RET, EXPR isHighWaterLevel() [L378] tmp = isHighWaterLevel() [L380] COND FALSE !(\read(tmp)) [L386] FCALL processEnvironment__wrappee__base() [L417] RET processEnvironment__wrappee__highWaterSensor() [L353] RET processEnvironment() [L359] CALL __utac_acc__Specification3_spec__1() [L194] int tmp ; [L195] int tmp___0 ; [L196] int tmp___1 ; [L200] CALL, EXPR isMethaneLevelCritical() [L278] int retValue_acc ; [L281] retValue_acc = methaneLevelCritical [L282] return (retValue_acc); [L200] RET, EXPR isMethaneLevelCritical() [L200] tmp = isMethaneLevelCritical() [L202] COND FALSE !(\read(tmp)) [L206] CALL, EXPR getWaterLevel() [L310] int retValue_acc ; [L313] retValue_acc = waterLevel [L314] return (retValue_acc); [L206] RET, EXPR getWaterLevel() [L206] tmp___0 = getWaterLevel() [L208] COND FALSE !(tmp___0 == 2) [L359] RET __utac_acc__Specification3_spec__1() [L595] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2023-11-19 07:44:03,638 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b46685e-84ff-4f38-b337-29609bec75a5/bin/uautomizer-verify-uCwYo4JHxu/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)