./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product56.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af847a0-425e-4fc7-b32e-27da7ad119d5/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af847a0-425e-4fc7-b32e-27da7ad119d5/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_2af847a0-425e-4fc7-b32e-27da7ad119d5/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af847a0-425e-4fc7-b32e-27da7ad119d5/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product56.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af847a0-425e-4fc7-b32e-27da7ad119d5/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_2af847a0-425e-4fc7-b32e-27da7ad119d5/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 c0bb085f1a2e359e53f6064743019c071065ce678b1651991605b55849e9a12f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:53:37,817 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:53:37,893 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af847a0-425e-4fc7-b32e-27da7ad119d5/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-19 07:53:37,899 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:53:37,900 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:53:37,932 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:53:37,936 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:53:37,936 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:53:37,938 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:53:37,938 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:53:37,940 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:53:37,944 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-19 07:53:37,945 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-19 07:53:37,945 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-19 07:53:37,946 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-19 07:53:37,946 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-19 07:53:37,947 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-19 07:53:37,948 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:53:37,964 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-19 07:53:37,965 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:53:37,968 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:53:37,969 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:53:37,969 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:53:37,970 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-19 07:53:37,970 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-19 07:53:37,974 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-19 07:53:37,974 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:53:37,975 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:53:37,975 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:53:37,975 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-19 07:53:37,976 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:53:37,976 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:53:37,977 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:53:37,978 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:53:37,979 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:53:37,979 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-19 07:53:37,979 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_2af847a0-425e-4fc7-b32e-27da7ad119d5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af847a0-425e-4fc7-b32e-27da7ad119d5/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c0bb085f1a2e359e53f6064743019c071065ce678b1651991605b55849e9a12f [2023-11-19 07:53:38,335 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:53:38,374 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:53:38,376 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:53:38,378 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:53:38,379 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:53:38,380 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af847a0-425e-4fc7-b32e-27da7ad119d5/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/product-lines/minepump_spec3_product56.cil.c [2023-11-19 07:53:41,592 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:53:41,829 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:53:41,830 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af847a0-425e-4fc7-b32e-27da7ad119d5/sv-benchmarks/c/product-lines/minepump_spec3_product56.cil.c [2023-11-19 07:53:41,860 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af847a0-425e-4fc7-b32e-27da7ad119d5/bin/uautomizer-verify-uCwYo4JHxu/data/1a2273afa/5067b31225d042f394c016f09e439a9f/FLAG3c6d6fefd [2023-11-19 07:53:41,880 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af847a0-425e-4fc7-b32e-27da7ad119d5/bin/uautomizer-verify-uCwYo4JHxu/data/1a2273afa/5067b31225d042f394c016f09e439a9f [2023-11-19 07:53:41,883 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:53:41,884 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:53:41,886 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:53:41,886 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:53:41,892 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:53:41,893 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:53:41" (1/1) ... [2023-11-19 07:53:41,894 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e655467 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:41, skipping insertion in model container [2023-11-19 07:53:41,894 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:53:41" (1/1) ... [2023-11-19 07:53:41,945 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:53:42,226 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:53:42,247 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:53:42,263 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [49] [2023-11-19 07:53:42,264 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [153] [2023-11-19 07:53:42,265 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [519] [2023-11-19 07:53:42,265 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [554] [2023-11-19 07:53:42,265 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [592] [2023-11-19 07:53:42,265 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [699] [2023-11-19 07:53:42,266 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [949] [2023-11-19 07:53:42,266 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1018] [2023-11-19 07:53:42,375 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:53:42,417 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:53:42,417 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:42 WrapperNode [2023-11-19 07:53:42,418 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:53:42,419 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:53:42,420 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:53:42,420 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:53:42,430 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:42" (1/1) ... [2023-11-19 07:53:42,447 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:42" (1/1) ... [2023-11-19 07:53:42,514 INFO L138 Inliner]: procedures = 58, calls = 107, calls flagged for inlining = 60, calls inlined = 146, statements flattened = 994 [2023-11-19 07:53:42,514 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:53:42,515 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:53:42,515 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:53:42,516 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:53:42,526 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:42" (1/1) ... [2023-11-19 07:53:42,527 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:42" (1/1) ... [2023-11-19 07:53:42,533 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:42" (1/1) ... [2023-11-19 07:53:42,534 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:42" (1/1) ... [2023-11-19 07:53:42,552 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:42" (1/1) ... [2023-11-19 07:53:42,563 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:42" (1/1) ... [2023-11-19 07:53:42,567 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:42" (1/1) ... [2023-11-19 07:53:42,571 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:42" (1/1) ... [2023-11-19 07:53:42,577 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:53:42,578 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:53:42,578 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:53:42,579 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:53:42,580 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:42" (1/1) ... [2023-11-19 07:53:42,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:53:42,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af847a0-425e-4fc7-b32e-27da7ad119d5/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:53:42,630 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af847a0-425e-4fc7-b32e-27da7ad119d5/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:53:42,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af847a0-425e-4fc7-b32e-27da7ad119d5/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-19 07:53:42,673 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:53:42,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:53:42,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:53:42,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:53:42,778 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:53:42,780 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:53:43,552 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:53:43,575 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:53:43,576 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 07:53:43,588 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:53:43 BoogieIcfgContainer [2023-11-19 07:53:43,591 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:53:43,594 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-19 07:53:43,594 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-19 07:53:43,599 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-19 07:53:43,600 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:53:43,600 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 07:53:41" (1/3) ... [2023-11-19 07:53:43,601 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2abb2a59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 07:53:43, skipping insertion in model container [2023-11-19 07:53:43,602 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:53:43,602 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:42" (2/3) ... [2023-11-19 07:53:43,604 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2abb2a59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 07:53:43, skipping insertion in model container [2023-11-19 07:53:43,604 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:53:43,604 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:53:43" (3/3) ... [2023-11-19 07:53:43,606 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product56.cil.c [2023-11-19 07:53:43,675 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-19 07:53:43,675 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-19 07:53:43,675 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-19 07:53:43,675 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-19 07:53:43,676 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-19 07:53:43,676 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-19 07:53:43,676 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-19 07:53:43,676 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-19 07:53:43,687 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 284 states, 283 states have (on average 1.3674911660777385) internal successors, (387), 283 states have internal predecessors, (387), 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 07:53:43,728 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 187 [2023-11-19 07:53:43,729 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:53:43,729 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:53:43,736 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:53:43,737 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 07:53:43,737 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-19 07:53:43,738 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 284 states, 283 states have (on average 1.3674911660777385) internal successors, (387), 283 states have internal predecessors, (387), 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 07:53:43,749 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 187 [2023-11-19 07:53:43,750 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:53:43,750 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:53:43,751 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:53:43,752 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 07:53:43,758 INFO L748 eck$LassoCheckResult]: Stem: 169#$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;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 182#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; 25#select_helpers_returnLabel#1true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 250#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~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 92#valid_product_returnLabel#1true main_#t~ret4#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 60#L140true assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 74#setup_returnLabel#1true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet51#1, test_#t~nondet52#1, test_#t~nondet53#1, test_#t~nondet54#1, test_~splverifierCounter~0#1, test_~tmp~10#1, test_~tmp___0~3#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~10#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 199#L960-2true [2023-11-19 07:53:43,759 INFO L750 eck$LassoCheckResult]: Loop: 199#L960-2true assume !false; 171#L961true assume test_~splverifierCounter~0#1 < 4; 27#L962true havoc test_#t~nondet51#1;test_~tmp~10#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 19#L970true assume !(0 != test_~tmp~10#1); 201#L970-2true havoc test_#t~nondet52#1;test_~tmp___0~3#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1; 237#L980true assume !(0 != test_~tmp___0~3#1); 118#L980-2true havoc test_#t~nondet53#1;test_~tmp___2~0#1 := test_#t~nondet53#1;havoc test_#t~nondet53#1; 97#L990true assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet54#1;test_~tmp___1~1#1 := test_#t~nondet54#1;havoc test_#t~nondet54#1; 220#L998true assume !(0 != test_~tmp___1~1#1); 54#L998-2true assume { :begin_inline_timeShift } true; 184#L711true assume !(0 != ~pumpRunning~0); 69#L711-2true assume !(0 != ~systemActive~0); 281#L718-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret29#1, __utac_acc__Specification3_spec__1_#t~ret30#1, __utac_acc__Specification3_spec__1_#t~ret31#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~4#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 219#isMethaneLevelCritical_returnLabel#2true __utac_acc__Specification3_spec__1_#t~ret29#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4#1 := __utac_acc__Specification3_spec__1_#t~ret29#1;havoc __utac_acc__Specification3_spec__1_#t~ret29#1; 285#L568true assume 0 != __utac_acc__Specification3_spec__1_~tmp~4#1; 126#L574-1true havoc __utac_acc__Specification3_spec__1_#t~ret29#1, __utac_acc__Specification3_spec__1_#t~ret30#1, __utac_acc__Specification3_spec__1_#t~ret31#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 209#timeShift_returnLabel#1true assume { :end_inline_timeShift } true; 199#L960-2true [2023-11-19 07:53:43,766 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:53:43,766 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2023-11-19 07:53:43,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:53:43,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210326505] [2023-11-19 07:53:43,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:53:43,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:53:43,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:53:43,907 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:53:43,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:53:43,972 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:53:43,976 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:53:43,977 INFO L85 PathProgramCache]: Analyzing trace with hash -1677007199, now seen corresponding path program 1 times [2023-11-19 07:53:43,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:53:43,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696178109] [2023-11-19 07:53:43,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:53:43,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:53:44,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:53:44,003 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:53:44,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:53:44,037 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:53:44,039 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:53:44,039 INFO L85 PathProgramCache]: Analyzing trace with hash 1686278493, now seen corresponding path program 1 times [2023-11-19 07:53:44,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:53:44,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526098761] [2023-11-19 07:53:44,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:53:44,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:53:44,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:53:44,376 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 07:53:44,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:53:44,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526098761] [2023-11-19 07:53:44,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526098761] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:53:44,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:53:44,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:53:44,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822990680] [2023-11-19 07:53:44,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:53:44,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:53:44,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:53:44,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:53:44,604 INFO L87 Difference]: Start difference. First operand has 284 states, 283 states have (on average 1.3674911660777385) internal successors, (387), 283 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:53:44,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:53:44,831 INFO L93 Difference]: Finished difference Result 888 states and 1187 transitions. [2023-11-19 07:53:44,833 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 888 states and 1187 transitions. [2023-11-19 07:53:44,857 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 584 [2023-11-19 07:53:44,878 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 888 states to 848 states and 1147 transitions. [2023-11-19 07:53:44,879 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 848 [2023-11-19 07:53:44,882 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 848 [2023-11-19 07:53:44,883 INFO L73 IsDeterministic]: Start isDeterministic. Operand 848 states and 1147 transitions. [2023-11-19 07:53:44,893 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:53:44,893 INFO L218 hiAutomatonCegarLoop]: Abstraction has 848 states and 1147 transitions. [2023-11-19 07:53:44,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 848 states and 1147 transitions. [2023-11-19 07:53:44,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 848 to 326. [2023-11-19 07:53:44,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 326 states have (on average 1.3496932515337423) internal successors, (440), 325 states have internal predecessors, (440), 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 07:53:44,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 440 transitions. [2023-11-19 07:53:44,964 INFO L240 hiAutomatonCegarLoop]: Abstraction has 326 states and 440 transitions. [2023-11-19 07:53:44,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:53:44,970 INFO L428 stractBuchiCegarLoop]: Abstraction has 326 states and 440 transitions. [2023-11-19 07:53:44,970 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-19 07:53:44,970 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 326 states and 440 transitions. [2023-11-19 07:53:44,973 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 225 [2023-11-19 07:53:44,974 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:53:44,974 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:53:44,975 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:53:44,975 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:53:44,975 INFO L748 eck$LassoCheckResult]: Stem: 1415#$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;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 1416#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; 1234#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1235#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~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 1340#valid_product_returnLabel#1 main_#t~ret4#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 1293#L140 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 1294#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet51#1, test_#t~nondet52#1, test_#t~nondet53#1, test_#t~nondet54#1, test_~splverifierCounter~0#1, test_~tmp~10#1, test_~tmp___0~3#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~10#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1311#L960-2 [2023-11-19 07:53:44,976 INFO L750 eck$LassoCheckResult]: Loop: 1311#L960-2 assume !false; 1418#L961 assume test_~splverifierCounter~0#1 < 4; 1239#L962 havoc test_#t~nondet51#1;test_~tmp~10#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 1222#L970 assume !(0 != test_~tmp~10#1); 1204#L970-2 havoc test_#t~nondet52#1;test_~tmp___0~3#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1; 1435#L980 assume !(0 != test_~tmp___0~3#1); 1298#L980-2 havoc test_#t~nondet53#1;test_~tmp___2~0#1 := test_#t~nondet53#1;havoc test_#t~nondet53#1; 1345#L990 assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet54#1;test_~tmp___1~1#1 := test_#t~nondet54#1;havoc test_#t~nondet54#1; 1346#L998 assume !(0 != test_~tmp___1~1#1); 1284#L998-2 assume { :begin_inline_timeShift } true; 1285#L711 assume !(0 != ~pumpRunning~0); 1305#L711-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret39#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; 1306#L795 assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret40#1, isMethaneAlarm_~retValue_acc~10#1;havoc isMethaneAlarm_~retValue_acc~10#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 1394#isMethaneLevelCritical_returnLabel#1 isMethaneAlarm_#t~ret40#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~10#1 := isMethaneAlarm_#t~ret40#1;havoc isMethaneAlarm_#t~ret40#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~10#1; 1453#isMethaneAlarm_returnLabel#1 processEnvironment_#t~ret39#1 := isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret40#1, isMethaneAlarm_~retValue_acc~10#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~7#1 := processEnvironment_#t~ret39#1;havoc processEnvironment_#t~ret39#1; 1372#L799 assume 0 != processEnvironment_~tmp~7#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; 1308#deactivatePump_returnLabel#2 assume { :end_inline_deactivatePump } true; 1220#L795-1 havoc processEnvironment_#t~ret39#1, processEnvironment_~tmp~7#1;assume { :end_inline_processEnvironment } true; 1221#L718-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret29#1, __utac_acc__Specification3_spec__1_#t~ret30#1, __utac_acc__Specification3_spec__1_#t~ret31#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~4#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 1442#isMethaneLevelCritical_returnLabel#2 __utac_acc__Specification3_spec__1_#t~ret29#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4#1 := __utac_acc__Specification3_spec__1_#t~ret29#1;havoc __utac_acc__Specification3_spec__1_#t~ret29#1; 1443#L568 assume 0 != __utac_acc__Specification3_spec__1_~tmp~4#1; 1274#L574-1 havoc __utac_acc__Specification3_spec__1_#t~ret29#1, __utac_acc__Specification3_spec__1_#t~ret30#1, __utac_acc__Specification3_spec__1_#t~ret31#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1381#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1311#L960-2 [2023-11-19 07:53:44,977 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:53:44,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2023-11-19 07:53:44,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:53:44,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179877917] [2023-11-19 07:53:44,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:53:44,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:53:44,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:53:44,988 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:53:44,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:53:44,997 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:53:44,998 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:53:44,998 INFO L85 PathProgramCache]: Analyzing trace with hash 198530762, now seen corresponding path program 1 times [2023-11-19 07:53:44,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:53:44,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085147804] [2023-11-19 07:53:44,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:53:44,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:53:45,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:53:45,022 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 07:53:45,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:53:45,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085147804] [2023-11-19 07:53:45,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085147804] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:53:45,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:53:45,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:53:45,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009043799] [2023-11-19 07:53:45,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:53:45,025 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-19 07:53:45,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:53:45,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:53:45,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:53:45,027 INFO L87 Difference]: Start difference. First operand 326 states and 440 transitions. cyclomatic complexity: 117 Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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 07:53:45,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:53:45,140 INFO L93 Difference]: Finished difference Result 338 states and 432 transitions. [2023-11-19 07:53:45,140 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 338 states and 432 transitions. [2023-11-19 07:53:45,143 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 239 [2023-11-19 07:53:45,146 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 338 states to 338 states and 432 transitions. [2023-11-19 07:53:45,148 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 338 [2023-11-19 07:53:45,148 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 338 [2023-11-19 07:53:45,149 INFO L73 IsDeterministic]: Start isDeterministic. Operand 338 states and 432 transitions. [2023-11-19 07:53:45,151 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:53:45,154 INFO L218 hiAutomatonCegarLoop]: Abstraction has 338 states and 432 transitions. [2023-11-19 07:53:45,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states and 432 transitions. [2023-11-19 07:53:45,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 338. [2023-11-19 07:53:45,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 338 states have (on average 1.2781065088757397) internal successors, (432), 337 states have internal predecessors, (432), 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 07:53:45,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 432 transitions. [2023-11-19 07:53:45,189 INFO L240 hiAutomatonCegarLoop]: Abstraction has 338 states and 432 transitions. [2023-11-19 07:53:45,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:53:45,192 INFO L428 stractBuchiCegarLoop]: Abstraction has 338 states and 432 transitions. [2023-11-19 07:53:45,194 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-19 07:53:45,195 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 338 states and 432 transitions. [2023-11-19 07:53:45,197 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 239 [2023-11-19 07:53:45,198 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:53:45,198 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:53:45,199 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:53:45,199 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 07:53:45,200 INFO L748 eck$LassoCheckResult]: Stem: 2045#$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;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 2046#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; 1890#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1891#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~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 1983#valid_product_returnLabel#1 main_#t~ret4#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 1945#L140 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 1946#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet51#1, test_#t~nondet52#1, test_#t~nondet53#1, test_#t~nondet54#1, test_~splverifierCounter~0#1, test_~tmp~10#1, test_~tmp___0~3#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~10#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1958#L960-2 [2023-11-19 07:53:45,201 INFO L750 eck$LassoCheckResult]: Loop: 1958#L960-2 assume !false; 2047#L961 assume test_~splverifierCounter~0#1 < 4; 1892#L962 havoc test_#t~nondet51#1;test_~tmp~10#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 1893#L970 assume !(0 != test_~tmp~10#1); 2168#L970-2 havoc test_#t~nondet52#1;test_~tmp___0~3#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1; 2166#L980 assume !(0 != test_~tmp___0~3#1); 2164#L980-2 havoc test_#t~nondet53#1;test_~tmp___2~0#1 := test_#t~nondet53#1;havoc test_#t~nondet53#1; 2162#L990 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 1936#startSystem_returnLabel#1 assume { :end_inline_startSystem } true; 1932#L998-2 assume { :begin_inline_timeShift } true; 1933#L711 assume !(0 != ~pumpRunning~0); 1954#L711-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret39#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; 1955#L795 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret38#1, processEnvironment__wrappee__lowWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~6#1; 2024#L769-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret37#1, processEnvironment__wrappee__highWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5#1; 2007#L743-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret49#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~12#1;havoc isHighWaterLevel_~tmp~8#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 1995#L680-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 1996#isHighWaterSensorDry_returnLabel#4 isHighWaterLevel_#t~ret49#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8#1 := isHighWaterLevel_#t~ret49#1;havoc isHighWaterLevel_#t~ret49#1; 2086#L897-9 assume 0 != isHighWaterLevel_~tmp~8#1;isHighWaterLevel_~tmp___0~1#1 := 0; 2089#L897-11 isHighWaterLevel_~retValue_acc~12#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1; 2054#isHighWaterLevel_returnLabel#4 processEnvironment__wrappee__highWaterSensor_#t~ret37#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret49#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~5#1 := processEnvironment__wrappee__highWaterSensor_#t~ret37#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret37#1; 2041#L747-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1997#processEnvironment__wrappee__base_returnLabel#7 assume { :end_inline_processEnvironment__wrappee__base } true; 1965#L743-7 havoc processEnvironment__wrappee__highWaterSensor_#t~ret37#1, processEnvironment__wrappee__highWaterSensor_~tmp~5#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1916#L769-3 havoc processEnvironment__wrappee__lowWaterSensor_#t~ret38#1, processEnvironment__wrappee__lowWaterSensor_~tmp~6#1;assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 1877#L795-1 havoc processEnvironment_#t~ret39#1, processEnvironment_~tmp~7#1;assume { :end_inline_processEnvironment } true; 1878#L718-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret29#1, __utac_acc__Specification3_spec__1_#t~ret30#1, __utac_acc__Specification3_spec__1_#t~ret31#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~4#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 2183#isMethaneLevelCritical_returnLabel#2 __utac_acc__Specification3_spec__1_#t~ret29#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4#1 := __utac_acc__Specification3_spec__1_#t~ret29#1;havoc __utac_acc__Specification3_spec__1_#t~ret29#1; 2181#L568 assume 0 != __utac_acc__Specification3_spec__1_~tmp~4#1; 2176#L574-1 havoc __utac_acc__Specification3_spec__1_#t~ret29#1, __utac_acc__Specification3_spec__1_#t~ret30#1, __utac_acc__Specification3_spec__1_#t~ret31#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 2175#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1958#L960-2 [2023-11-19 07:53:45,201 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:53:45,202 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2023-11-19 07:53:45,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:53:45,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743005401] [2023-11-19 07:53:45,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:53:45,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:53:45,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:53:45,224 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:53:45,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:53:45,235 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:53:45,239 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:53:45,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1170403500, now seen corresponding path program 1 times [2023-11-19 07:53:45,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:53:45,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039313048] [2023-11-19 07:53:45,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:53:45,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:53:45,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:53:45,253 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:53:45,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:53:45,276 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:53:45,277 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:53:45,277 INFO L85 PathProgramCache]: Analyzing trace with hash 1567594352, now seen corresponding path program 1 times [2023-11-19 07:53:45,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:53:45,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19159298] [2023-11-19 07:53:45,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:53:45,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:53:45,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:53:45,433 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 07:53:45,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:53:45,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19159298] [2023-11-19 07:53:45,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19159298] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:53:45,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:53:45,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:53:45,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028242921] [2023-11-19 07:53:45,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:53:45,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:53:45,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:53:45,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:53:45,653 INFO L87 Difference]: Start difference. First operand 338 states and 432 transitions. cyclomatic complexity: 97 Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 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 07:53:45,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:53:45,803 INFO L93 Difference]: Finished difference Result 808 states and 1019 transitions. [2023-11-19 07:53:45,803 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 808 states and 1019 transitions. [2023-11-19 07:53:45,812 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 583 [2023-11-19 07:53:45,835 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 808 states to 808 states and 1019 transitions. [2023-11-19 07:53:45,835 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 808 [2023-11-19 07:53:45,836 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 808 [2023-11-19 07:53:45,837 INFO L73 IsDeterministic]: Start isDeterministic. Operand 808 states and 1019 transitions. [2023-11-19 07:53:45,838 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:53:45,838 INFO L218 hiAutomatonCegarLoop]: Abstraction has 808 states and 1019 transitions. [2023-11-19 07:53:45,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 808 states and 1019 transitions. [2023-11-19 07:53:45,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 808 to 669. [2023-11-19 07:53:45,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 669 states, 669 states have (on average 1.2630792227204783) internal successors, (845), 668 states have internal predecessors, (845), 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 07:53:45,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 669 states to 669 states and 845 transitions. [2023-11-19 07:53:45,861 INFO L240 hiAutomatonCegarLoop]: Abstraction has 669 states and 845 transitions. [2023-11-19 07:53:45,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 07:53:45,862 INFO L428 stractBuchiCegarLoop]: Abstraction has 669 states and 845 transitions. [2023-11-19 07:53:45,862 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-19 07:53:45,863 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 669 states and 845 transitions. [2023-11-19 07:53:45,867 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 478 [2023-11-19 07:53:45,867 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:53:45,868 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:53:45,868 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:53:45,869 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:53:45,869 INFO L748 eck$LassoCheckResult]: Stem: 3238#$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;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 3239#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; 3048#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 3049#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~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 3154#valid_product_returnLabel#1 main_#t~ret4#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 3108#L140 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 3109#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet51#1, test_#t~nondet52#1, test_#t~nondet53#1, test_#t~nondet54#1, test_~splverifierCounter~0#1, test_~tmp~10#1, test_~tmp___0~3#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~10#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 3128#L960-2 [2023-11-19 07:53:45,869 INFO L750 eck$LassoCheckResult]: Loop: 3128#L960-2 assume !false; 3241#L961 assume test_~splverifierCounter~0#1 < 4; 3242#L962 havoc test_#t~nondet51#1;test_~tmp~10#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 3687#L970 assume !(0 != test_~tmp~10#1); 3685#L970-2 havoc test_#t~nondet52#1;test_~tmp___0~3#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1; 3683#L980 assume !(0 != test_~tmp___0~3#1); 3681#L980-2 havoc test_#t~nondet53#1;test_~tmp___2~0#1 := test_#t~nondet53#1;havoc test_#t~nondet53#1; 3670#L990 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 3662#startSystem_returnLabel#1 assume { :end_inline_startSystem } true; 3660#L998-2 assume { :begin_inline_timeShift } true; 3657#L711 assume !(0 != ~pumpRunning~0); 3400#L711-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret39#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; 3207#L795 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret38#1, processEnvironment__wrappee__lowWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~6#1; 3208#L769-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret37#1, processEnvironment__wrappee__highWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5#1; 3187#L743-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret49#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~12#1;havoc isHighWaterLevel_~tmp~8#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 3169#L680-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 3170#isHighWaterSensorDry_returnLabel#4 isHighWaterLevel_#t~ret49#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8#1 := isHighWaterLevel_#t~ret49#1;havoc isHighWaterLevel_#t~ret49#1; 3312#L897-9 assume 0 != isHighWaterLevel_~tmp~8#1;isHighWaterLevel_~tmp___0~1#1 := 0; 3317#L897-11 isHighWaterLevel_~retValue_acc~12#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1; 3255#isHighWaterLevel_returnLabel#4 processEnvironment__wrappee__highWaterSensor_#t~ret37#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret49#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~5#1 := processEnvironment__wrappee__highWaterSensor_#t~ret37#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret37#1; 3232#L747-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 3171#processEnvironment__wrappee__base_returnLabel#7 assume { :end_inline_processEnvironment__wrappee__base } true; 3135#L743-7 havoc processEnvironment__wrappee__highWaterSensor_#t~ret37#1, processEnvironment__wrappee__highWaterSensor_~tmp~5#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 3079#L769-3 havoc processEnvironment__wrappee__lowWaterSensor_#t~ret38#1, processEnvironment__wrappee__lowWaterSensor_~tmp~6#1;assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 3037#L795-1 havoc processEnvironment_#t~ret39#1, processEnvironment_~tmp~7#1;assume { :end_inline_processEnvironment } true; 3038#L718-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret29#1, __utac_acc__Specification3_spec__1_#t~ret30#1, __utac_acc__Specification3_spec__1_#t~ret31#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~4#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 3639#isMethaneLevelCritical_returnLabel#2 __utac_acc__Specification3_spec__1_#t~ret29#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4#1 := __utac_acc__Specification3_spec__1_#t~ret29#1;havoc __utac_acc__Specification3_spec__1_#t~ret29#1; 3571#L568 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~4#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; 3572#getWaterLevel_returnLabel#1 __utac_acc__Specification3_spec__1_#t~ret30#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~0#1 := __utac_acc__Specification3_spec__1_#t~ret30#1;havoc __utac_acc__Specification3_spec__1_#t~ret30#1; 3563#L574 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0#1); 3565#L574-1 havoc __utac_acc__Specification3_spec__1_#t~ret29#1, __utac_acc__Specification3_spec__1_#t~ret30#1, __utac_acc__Specification3_spec__1_#t~ret31#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 3281#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 3128#L960-2 [2023-11-19 07:53:45,870 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:53:45,870 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2023-11-19 07:53:45,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:53:45,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099010106] [2023-11-19 07:53:45,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:53:45,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:53:45,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:53:45,878 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:53:45,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:53:45,885 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:53:45,886 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:53:45,886 INFO L85 PathProgramCache]: Analyzing trace with hash -522469855, now seen corresponding path program 1 times [2023-11-19 07:53:45,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:53:45,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741511701] [2023-11-19 07:53:45,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:53:45,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:53:45,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:53:45,896 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:53:45,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:53:45,904 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:53:45,905 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:53:45,905 INFO L85 PathProgramCache]: Analyzing trace with hash -1074150427, now seen corresponding path program 1 times [2023-11-19 07:53:45,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:53:45,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785520597] [2023-11-19 07:53:45,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:53:45,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:53:45,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:53:45,927 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:53:45,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:53:45,940 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:53:47,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:53:47,171 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:53:47,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:53:47,245 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 07:53:47 BoogieIcfgContainer [2023-11-19 07:53:47,245 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-19 07:53:47,246 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:53:47,246 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:53:47,247 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:53:47,249 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:53:43" (3/4) ... [2023-11-19 07:53:47,251 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2023-11-19 07:53:47,324 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af847a0-425e-4fc7-b32e-27da7ad119d5/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 07:53:47,325 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:53:47,326 INFO L158 Benchmark]: Toolchain (without parser) took 5441.17ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 108.8MB in the beginning and 86.7MB in the end (delta: 22.1MB). Peak memory consumption was 54.5MB. Max. memory is 16.1GB. [2023-11-19 07:53:47,326 INFO L158 Benchmark]: CDTParser took 0.67ms. Allocated memory is still 107.0MB. Free memory was 56.5MB in the beginning and 56.4MB in the end (delta: 159.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:53:47,327 INFO L158 Benchmark]: CACSL2BoogieTranslator took 532.50ms. Allocated memory is still 148.9MB. Free memory was 108.8MB in the beginning and 89.0MB in the end (delta: 19.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-19 07:53:47,328 INFO L158 Benchmark]: Boogie Procedure Inliner took 95.24ms. Allocated memory is still 148.9MB. Free memory was 89.0MB in the beginning and 84.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 07:53:47,329 INFO L158 Benchmark]: Boogie Preprocessor took 62.17ms. Allocated memory is still 148.9MB. Free memory was 84.8MB in the beginning and 81.5MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 07:53:47,332 INFO L158 Benchmark]: RCFGBuilder took 1014.89ms. Allocated memory is still 148.9MB. Free memory was 81.1MB in the beginning and 94.6MB in the end (delta: -13.5MB). Peak memory consumption was 22.7MB. Max. memory is 16.1GB. [2023-11-19 07:53:47,333 INFO L158 Benchmark]: BuchiAutomizer took 3651.56ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 94.6MB in the beginning and 89.8MB in the end (delta: 4.8MB). Peak memory consumption was 36.0MB. Max. memory is 16.1GB. [2023-11-19 07:53:47,333 INFO L158 Benchmark]: Witness Printer took 78.84ms. Allocated memory is still 180.4MB. Free memory was 89.8MB in the beginning and 86.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:53:47,336 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.67ms. Allocated memory is still 107.0MB. Free memory was 56.5MB in the beginning and 56.4MB in the end (delta: 159.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 532.50ms. Allocated memory is still 148.9MB. Free memory was 108.8MB in the beginning and 89.0MB in the end (delta: 19.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 95.24ms. Allocated memory is still 148.9MB. Free memory was 89.0MB in the beginning and 84.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 62.17ms. Allocated memory is still 148.9MB. Free memory was 84.8MB in the beginning and 81.5MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1014.89ms. Allocated memory is still 148.9MB. Free memory was 81.1MB in the beginning and 94.6MB in the end (delta: -13.5MB). Peak memory consumption was 22.7MB. Max. memory is 16.1GB. * BuchiAutomizer took 3651.56ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 94.6MB in the beginning and 89.8MB in the end (delta: 4.8MB). Peak memory consumption was 36.0MB. Max. memory is 16.1GB. * Witness Printer took 78.84ms. Allocated memory is still 180.4MB. Free memory was 89.8MB in the beginning and 86.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [49] - GenericResultAtLocation [Line: 153]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [153] - GenericResultAtLocation [Line: 519]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [519] - GenericResultAtLocation [Line: 554]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [554] - GenericResultAtLocation [Line: 592]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [592] - GenericResultAtLocation [Line: 699]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [699] - GenericResultAtLocation [Line: 949]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [949] - GenericResultAtLocation [Line: 1018]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1018] * 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 6 locations. The remainder module has 669 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.5s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 2.6s. Construction of modules took 0.2s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 661 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, 2917 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2917 mSDsluCounter, 4254 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3146 mSDsCounter, 65 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 162 IncrementalHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 65 mSolverCounterUnsat, 1108 mSDtfsCounter, 162 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 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: 960]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L50] int cleanupTimeShifts = 4; [L323] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L597] int waterLevel = 1; [L598] int methaneLevelCritical = 0; [L704] int pumpRunning = 0; [L705] int systemActive = 1; 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() [L546] int retValue_acc ; [L549] retValue_acc = 1 [L550] 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() [L951] int splverifierCounter ; [L952] int tmp ; [L953] int tmp___0 ; [L954] int tmp___1 ; [L955] int tmp___2 ; [L958] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L960] COND TRUE 1 [L962] COND TRUE splverifierCounter < 4 [L968] tmp = __VERIFIER_nondet_int() [L970] COND FALSE !(\read(tmp)) [L978] tmp___0 = __VERIFIER_nondet_int() [L980] COND FALSE !(\read(tmp___0)) [L988] tmp___2 = __VERIFIER_nondet_int() [L990] COND TRUE \read(tmp___2) [L992] CALL startSystem() [L945] systemActive = 1 [L992] RET startSystem() [L1007] CALL timeShift() [L711] COND FALSE !(\read(pumpRunning)) [L718] COND TRUE \read(systemActive) [L720] CALL processEnvironment() [L792] int tmp ; [L795] COND FALSE !(\read(pumpRunning)) [L810] CALL processEnvironment__wrappee__lowWaterSensor() [L766] int tmp ; [L769] COND FALSE !(\read(pumpRunning)) [L784] CALL processEnvironment__wrappee__highWaterSensor() [L740] int tmp ; [L743] COND TRUE ! pumpRunning [L745] CALL, EXPR isHighWaterLevel() [L889] int retValue_acc ; [L890] int tmp ; [L891] int tmp___0 ; [L895] CALL, EXPR isHighWaterSensorDry() [L677] int retValue_acc ; [L680] COND TRUE waterLevel < 2 [L681] retValue_acc = 1 [L682] return (retValue_acc); [L895] RET, EXPR isHighWaterSensorDry() [L895] tmp = isHighWaterSensorDry() [L897] COND TRUE \read(tmp) [L898] tmp___0 = 0 [L902] retValue_acc = tmp___0 [L903] return (retValue_acc); [L745] RET, EXPR isHighWaterLevel() [L745] tmp = isHighWaterLevel() [L747] COND FALSE !(\read(tmp)) [L753] FCALL processEnvironment__wrappee__base() [L784] RET processEnvironment__wrappee__highWaterSensor() [L810] RET processEnvironment__wrappee__lowWaterSensor() [L720] RET processEnvironment() [L726] CALL __utac_acc__Specification3_spec__1() [L560] int tmp ; [L561] int tmp___0 ; [L562] int tmp___1 ; [L566] CALL, EXPR isMethaneLevelCritical() [L636] int retValue_acc ; [L639] retValue_acc = methaneLevelCritical [L640] return (retValue_acc); [L566] RET, EXPR isMethaneLevelCritical() [L566] tmp = isMethaneLevelCritical() [L568] COND FALSE !(\read(tmp)) [L572] CALL, EXPR getWaterLevel() [L668] int retValue_acc ; [L671] retValue_acc = waterLevel [L672] return (retValue_acc); [L572] RET, EXPR getWaterLevel() [L572] tmp___0 = getWaterLevel() [L574] COND FALSE !(tmp___0 == 2) [L726] RET __utac_acc__Specification3_spec__1() [L1007] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 960]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L50] int cleanupTimeShifts = 4; [L323] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L597] int waterLevel = 1; [L598] int methaneLevelCritical = 0; [L704] int pumpRunning = 0; [L705] int systemActive = 1; 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() [L546] int retValue_acc ; [L549] retValue_acc = 1 [L550] 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() [L951] int splverifierCounter ; [L952] int tmp ; [L953] int tmp___0 ; [L954] int tmp___1 ; [L955] int tmp___2 ; [L958] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L960] COND TRUE 1 [L962] COND TRUE splverifierCounter < 4 [L968] tmp = __VERIFIER_nondet_int() [L970] COND FALSE !(\read(tmp)) [L978] tmp___0 = __VERIFIER_nondet_int() [L980] COND FALSE !(\read(tmp___0)) [L988] tmp___2 = __VERIFIER_nondet_int() [L990] COND TRUE \read(tmp___2) [L992] CALL startSystem() [L945] systemActive = 1 [L992] RET startSystem() [L1007] CALL timeShift() [L711] COND FALSE !(\read(pumpRunning)) [L718] COND TRUE \read(systemActive) [L720] CALL processEnvironment() [L792] int tmp ; [L795] COND FALSE !(\read(pumpRunning)) [L810] CALL processEnvironment__wrappee__lowWaterSensor() [L766] int tmp ; [L769] COND FALSE !(\read(pumpRunning)) [L784] CALL processEnvironment__wrappee__highWaterSensor() [L740] int tmp ; [L743] COND TRUE ! pumpRunning [L745] CALL, EXPR isHighWaterLevel() [L889] int retValue_acc ; [L890] int tmp ; [L891] int tmp___0 ; [L895] CALL, EXPR isHighWaterSensorDry() [L677] int retValue_acc ; [L680] COND TRUE waterLevel < 2 [L681] retValue_acc = 1 [L682] return (retValue_acc); [L895] RET, EXPR isHighWaterSensorDry() [L895] tmp = isHighWaterSensorDry() [L897] COND TRUE \read(tmp) [L898] tmp___0 = 0 [L902] retValue_acc = tmp___0 [L903] return (retValue_acc); [L745] RET, EXPR isHighWaterLevel() [L745] tmp = isHighWaterLevel() [L747] COND FALSE !(\read(tmp)) [L753] FCALL processEnvironment__wrappee__base() [L784] RET processEnvironment__wrappee__highWaterSensor() [L810] RET processEnvironment__wrappee__lowWaterSensor() [L720] RET processEnvironment() [L726] CALL __utac_acc__Specification3_spec__1() [L560] int tmp ; [L561] int tmp___0 ; [L562] int tmp___1 ; [L566] CALL, EXPR isMethaneLevelCritical() [L636] int retValue_acc ; [L639] retValue_acc = methaneLevelCritical [L640] return (retValue_acc); [L566] RET, EXPR isMethaneLevelCritical() [L566] tmp = isMethaneLevelCritical() [L568] COND FALSE !(\read(tmp)) [L572] CALL, EXPR getWaterLevel() [L668] int retValue_acc ; [L671] retValue_acc = waterLevel [L672] return (retValue_acc); [L572] RET, EXPR getWaterLevel() [L572] tmp___0 = getWaterLevel() [L574] COND FALSE !(tmp___0 == 2) [L726] RET __utac_acc__Specification3_spec__1() [L1007] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2023-11-19 07:53:47,406 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af847a0-425e-4fc7-b32e-27da7ad119d5/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)