./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product20.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 30e01a73 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_63841cdf-bc4d-410f-8b8f-bbca7bcc4ce5/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63841cdf-bc4d-410f-8b8f-bbca7bcc4ce5/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63841cdf-bc4d-410f-8b8f-bbca7bcc4ce5/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63841cdf-bc4d-410f-8b8f-bbca7bcc4ce5/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product20.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63841cdf-bc4d-410f-8b8f-bbca7bcc4ce5/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63841cdf-bc4d-410f-8b8f-bbca7bcc4ce5/bin/uautomizer-verify-zZY32mL2XJ --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 61c2d7b2f53adc3803e4e62ab44daa78f4a9bdf9ba37b58d516bb40a6cc23cc6 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 22:28:47,541 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 22:28:47,659 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63841cdf-bc4d-410f-8b8f-bbca7bcc4ce5/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-23 22:28:47,666 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 22:28:47,667 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 22:28:47,713 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 22:28:47,714 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 22:28:47,715 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 22:28:47,716 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 22:28:47,721 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 22:28:47,722 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 22:28:47,722 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 22:28:47,723 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 22:28:47,725 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-23 22:28:47,726 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-23 22:28:47,726 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-23 22:28:47,727 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-23 22:28:47,727 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-23 22:28:47,727 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-23 22:28:47,728 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 22:28:47,728 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-23 22:28:47,729 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 22:28:47,730 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 22:28:47,730 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 22:28:47,730 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 22:28:47,731 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-23 22:28:47,731 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-23 22:28:47,732 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-23 22:28:47,732 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 22:28:47,733 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 22:28:47,734 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 22:28:47,734 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-23 22:28:47,735 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 22:28:47,735 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 22:28:47,735 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 22:28:47,735 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 22:28:47,736 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 22:28:47,736 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-23 22:28:47,737 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_63841cdf-bc4d-410f-8b8f-bbca7bcc4ce5/bin/uautomizer-verify-zZY32mL2XJ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63841cdf-bc4d-410f-8b8f-bbca7bcc4ce5/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 61c2d7b2f53adc3803e4e62ab44daa78f4a9bdf9ba37b58d516bb40a6cc23cc6 [2023-11-23 22:28:48,044 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 22:28:48,081 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 22:28:48,084 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 22:28:48,085 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 22:28:48,086 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 22:28:48,088 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63841cdf-bc4d-410f-8b8f-bbca7bcc4ce5/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/product-lines/minepump_spec5_product20.cil.c [2023-11-23 22:28:51,245 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 22:28:51,500 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 22:28:51,501 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63841cdf-bc4d-410f-8b8f-bbca7bcc4ce5/sv-benchmarks/c/product-lines/minepump_spec5_product20.cil.c [2023-11-23 22:28:51,515 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63841cdf-bc4d-410f-8b8f-bbca7bcc4ce5/bin/uautomizer-verify-zZY32mL2XJ/data/81546b721/301640f635a24ef48bdad36b01ffe8e0/FLAG7812270c7 [2023-11-23 22:28:51,530 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63841cdf-bc4d-410f-8b8f-bbca7bcc4ce5/bin/uautomizer-verify-zZY32mL2XJ/data/81546b721/301640f635a24ef48bdad36b01ffe8e0 [2023-11-23 22:28:51,533 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 22:28:51,535 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 22:28:51,536 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 22:28:51,536 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 22:28:51,542 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 22:28:51,543 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:28:51" (1/1) ... [2023-11-23 22:28:51,544 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@118c3733 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:28:51, skipping insertion in model container [2023-11-23 22:28:51,544 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:28:51" (1/1) ... [2023-11-23 22:28:51,590 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 22:28:51,924 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:28:51,947 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 22:28:51,958 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [49] [2023-11-23 22:28:51,960 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [415] [2023-11-23 22:28:51,961 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [511] [2023-11-23 22:28:51,961 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [562] [2023-11-23 22:28:51,961 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [600] [2023-11-23 22:28:51,962 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [609] [2023-11-23 22:28:51,962 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [709] [2023-11-23 22:28:51,962 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [780] [2023-11-23 22:28:52,042 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:28:52,071 INFO L206 MainTranslator]: Completed translation [2023-11-23 22:28:52,071 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:28:52 WrapperNode [2023-11-23 22:28:52,072 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 22:28:52,073 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 22:28:52,073 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 22:28:52,073 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 22:28:52,082 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:28:52" (1/1) ... [2023-11-23 22:28:52,113 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:28:52" (1/1) ... [2023-11-23 22:28:52,163 INFO L138 Inliner]: procedures = 56, calls = 100, calls flagged for inlining = 53, calls inlined = 60, statements flattened = 377 [2023-11-23 22:28:52,163 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 22:28:52,164 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 22:28:52,164 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 22:28:52,164 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 22:28:52,177 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:28:52" (1/1) ... [2023-11-23 22:28:52,177 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:28:52" (1/1) ... [2023-11-23 22:28:52,180 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:28:52" (1/1) ... [2023-11-23 22:28:52,194 INFO L189 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-23 22:28:52,195 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:28:52" (1/1) ... [2023-11-23 22:28:52,195 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:28:52" (1/1) ... [2023-11-23 22:28:52,203 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:28:52" (1/1) ... [2023-11-23 22:28:52,209 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:28:52" (1/1) ... [2023-11-23 22:28:52,211 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:28:52" (1/1) ... [2023-11-23 22:28:52,213 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:28:52" (1/1) ... [2023-11-23 22:28:52,218 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 22:28:52,219 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 22:28:52,219 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 22:28:52,219 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 22:28:52,220 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:28:52" (1/1) ... [2023-11-23 22:28:52,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:28:52,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63841cdf-bc4d-410f-8b8f-bbca7bcc4ce5/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:28:52,275 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63841cdf-bc4d-410f-8b8f-bbca7bcc4ce5/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:28:52,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63841cdf-bc4d-410f-8b8f-bbca7bcc4ce5/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-23 22:28:52,322 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 22:28:52,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-23 22:28:52,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 22:28:52,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 22:28:52,399 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 22:28:52,401 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 22:28:52,748 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 22:28:52,763 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 22:28:52,763 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-23 22:28:52,765 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:28:52 BoogieIcfgContainer [2023-11-23 22:28:52,765 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 22:28:52,766 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-23 22:28:52,767 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-23 22:28:52,771 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-23 22:28:52,772 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-23 22:28:52,772 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 10:28:51" (1/3) ... [2023-11-23 22:28:52,773 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@dc3df8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 10:28:52, skipping insertion in model container [2023-11-23 22:28:52,774 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-23 22:28:52,774 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:28:52" (2/3) ... [2023-11-23 22:28:52,774 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@dc3df8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 10:28:52, skipping insertion in model container [2023-11-23 22:28:52,775 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-23 22:28:52,775 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:28:52" (3/3) ... [2023-11-23 22:28:52,776 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product20.cil.c [2023-11-23 22:28:52,839 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-23 22:28:52,839 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-23 22:28:52,839 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-23 22:28:52,840 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-23 22:28:52,840 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-23 22:28:52,840 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-23 22:28:52,840 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-23 22:28:52,841 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-23 22:28:52,846 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 120 states, 119 states have (on average 1.3445378151260505) internal successors, (160), 119 states have internal predecessors, (160), 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) [2023-11-23 22:28:52,874 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 77 [2023-11-23 22:28:52,874 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-23 22:28:52,875 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-23 22:28:52,882 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:28:52,883 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:28:52,883 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-23 22:28:52,884 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 120 states, 119 states have (on average 1.3445378151260505) internal successors, (160), 119 states have internal predecessors, (160), 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) [2023-11-23 22:28:52,892 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 77 [2023-11-23 22:28:52,892 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-23 22:28:52,892 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-23 22:28:52,893 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:28:52,894 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:28:52,900 INFO L748 eck$LassoCheckResult]: Stem: 27#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 32#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret36#1, main_~retValue_acc~8#1, main_~tmp~4#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; 24#select_helpers_returnLabel#1true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 98#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~7#1;havoc valid_product_~retValue_acc~7#1;valid_product_~retValue_acc~7#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~7#1; 88#valid_product_returnLabel#1true main_#t~ret36#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~7#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret36#1;havoc main_#t~ret36#1; 41#L696true assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 68#setup_returnLabel#1true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 106#__utac_acc__Specification5_spec__1_returnLabel#1true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 118#L722-2true [2023-11-23 22:28:52,901 INFO L750 eck$LassoCheckResult]: Loop: 118#L722-2true assume !false; 117#L723true assume test_~splverifierCounter~0#1 < 4; 19#L724true havoc test_#t~nondet37#1;test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 26#L732true assume !(0 != test_~tmp~5#1); 100#L732-2true havoc test_#t~nondet38#1;test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 30#L742true assume !(0 != test_~tmp___0~1#1); 79#L742-2true havoc test_#t~nondet39#1;test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 73#L752true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 51#startSystem_returnLabel#1true assume { :end_inline_startSystem } true; 104#L760-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret32#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~10#1;havoc isPumpRunning_~retValue_acc~10#1;isPumpRunning_~retValue_acc~10#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~10#1; 102#isPumpRunning_returnLabel#1true __utac_acc__Specification5_spec__2_#t~ret32#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~10#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret32#1;havoc __utac_acc__Specification5_spec__2_#t~ret32#1; 82#__utac_acc__Specification5_spec__2_returnLabel#1true havoc __utac_acc__Specification5_spec__2_#t~ret32#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true; 33#L793true assume !(0 != ~pumpRunning~0); 71#L793-2true assume !(0 != ~systemActive~0); 105#L800-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret33#1, __utac_acc__Specification5_spec__3_#t~ret34#1, __utac_acc__Specification5_spec__3_~tmp~3#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~3#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;havoc getWaterLevel_~retValue_acc~4#1;getWaterLevel_~retValue_acc~4#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~4#1; 61#getWaterLevel_returnLabel#1true __utac_acc__Specification5_spec__3_#t~ret33#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~3#1 := __utac_acc__Specification5_spec__3_#t~ret33#1;havoc __utac_acc__Specification5_spec__3_#t~ret33#1; 81#L541true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~3#1); 72#L541-1true havoc __utac_acc__Specification5_spec__3_#t~ret33#1, __utac_acc__Specification5_spec__3_#t~ret34#1, __utac_acc__Specification5_spec__3_~tmp~3#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true; 62#timeShift_returnLabel#1true assume { :end_inline_timeShift } true; 118#L722-2true [2023-11-23 22:28:52,907 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:28:52,908 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2023-11-23 22:28:52,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:28:52,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451128477] [2023-11-23 22:28:52,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:28:52,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:28:53,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:28:53,082 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:28:53,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:28:53,148 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:28:53,151 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:28:53,151 INFO L85 PathProgramCache]: Analyzing trace with hash 2121700621, now seen corresponding path program 1 times [2023-11-23 22:28:53,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:28:53,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4802749] [2023-11-23 22:28:53,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:28:53,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:28:53,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:28:53,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:28:53,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:28:53,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4802749] [2023-11-23 22:28:53,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4802749] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:28:53,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:28:53,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 22:28:53,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505053061] [2023-11-23 22:28:53,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:28:53,310 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-23 22:28:53,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:28:53,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:28:53,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:28:53,370 INFO L87 Difference]: Start difference. First operand has 120 states, 119 states have (on average 1.3445378151260505) internal successors, (160), 119 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:28:53,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:28:53,434 INFO L93 Difference]: Finished difference Result 218 states and 280 transitions. [2023-11-23 22:28:53,436 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 218 states and 280 transitions. [2023-11-23 22:28:53,444 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 140 [2023-11-23 22:28:53,452 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 218 states to 198 states and 259 transitions. [2023-11-23 22:28:53,461 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 198 [2023-11-23 22:28:53,464 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 198 [2023-11-23 22:28:53,465 INFO L73 IsDeterministic]: Start isDeterministic. Operand 198 states and 259 transitions. [2023-11-23 22:28:53,466 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:28:53,466 INFO L218 hiAutomatonCegarLoop]: Abstraction has 198 states and 259 transitions. [2023-11-23 22:28:53,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states and 259 transitions. [2023-11-23 22:28:53,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 195. [2023-11-23 22:28:53,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 195 states have (on average 1.3076923076923077) internal successors, (255), 194 states have internal predecessors, (255), 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) [2023-11-23 22:28:53,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 255 transitions. [2023-11-23 22:28:53,536 INFO L240 hiAutomatonCegarLoop]: Abstraction has 195 states and 255 transitions. [2023-11-23 22:28:53,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:28:53,546 INFO L428 stractBuchiCegarLoop]: Abstraction has 195 states and 255 transitions. [2023-11-23 22:28:53,546 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-23 22:28:53,546 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 195 states and 255 transitions. [2023-11-23 22:28:53,555 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 137 [2023-11-23 22:28:53,556 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-23 22:28:53,556 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-23 22:28:53,557 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:28:53,557 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:28:53,557 INFO L748 eck$LassoCheckResult]: Stem: 385#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 386#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret36#1, main_~retValue_acc~8#1, main_~tmp~4#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; 382#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 383#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~7#1;havoc valid_product_~retValue_acc~7#1;valid_product_~retValue_acc~7#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~7#1; 445#valid_product_returnLabel#1 main_#t~ret36#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~7#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret36#1;havoc main_#t~ret36#1; 405#L696 assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 406#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 431#__utac_acc__Specification5_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 456#L722-2 [2023-11-23 22:28:53,557 INFO L750 eck$LassoCheckResult]: Loop: 456#L722-2 assume !false; 481#L723 assume test_~splverifierCounter~0#1 < 4; 480#L724 havoc test_#t~nondet37#1;test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 478#L732 assume !(0 != test_~tmp~5#1); 476#L732-2 havoc test_#t~nondet38#1;test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 474#L742 assume !(0 != test_~tmp___0~1#1); 472#L742-2 havoc test_#t~nondet39#1;test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 471#L752 assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet40#1;test_~tmp___1~0#1 := test_#t~nondet40#1;havoc test_#t~nondet40#1; 470#L760 assume !(0 != test_~tmp___1~0#1); 415#L760-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret32#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~10#1;havoc isPumpRunning_~retValue_acc~10#1;isPumpRunning_~retValue_acc~10#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~10#1; 452#isPumpRunning_returnLabel#1 __utac_acc__Specification5_spec__2_#t~ret32#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~10#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret32#1;havoc __utac_acc__Specification5_spec__2_#t~ret32#1; 441#__utac_acc__Specification5_spec__2_returnLabel#1 havoc __utac_acc__Specification5_spec__2_#t~ret32#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true; 392#L793 assume !(0 != ~pumpRunning~0); 393#L793-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret41#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 434#L825 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 535#processEnvironment__wrappee__base_returnLabel#2 assume { :end_inline_processEnvironment__wrappee__base } true; 533#L825-1 havoc processEnvironment_#t~ret41#1, processEnvironment_~tmp~6#1;assume { :end_inline_processEnvironment } true; 532#L800-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret33#1, __utac_acc__Specification5_spec__3_#t~ret34#1, __utac_acc__Specification5_spec__3_~tmp~3#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~3#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;havoc getWaterLevel_~retValue_acc~4#1;getWaterLevel_~retValue_acc~4#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~4#1; 531#getWaterLevel_returnLabel#1 __utac_acc__Specification5_spec__3_#t~ret33#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~3#1 := __utac_acc__Specification5_spec__3_#t~ret33#1;havoc __utac_acc__Specification5_spec__3_#t~ret33#1; 529#L541 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~3#1); 526#L541-1 havoc __utac_acc__Specification5_spec__3_#t~ret33#1, __utac_acc__Specification5_spec__3_#t~ret34#1, __utac_acc__Specification5_spec__3_~tmp~3#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true; 525#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 456#L722-2 [2023-11-23 22:28:53,558 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:28:53,558 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2023-11-23 22:28:53,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:28:53,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426980312] [2023-11-23 22:28:53,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:28:53,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:28:53,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:28:53,591 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:28:53,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:28:53,618 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:28:53,622 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:28:53,622 INFO L85 PathProgramCache]: Analyzing trace with hash 472122895, now seen corresponding path program 1 times [2023-11-23 22:28:53,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:28:53,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125083349] [2023-11-23 22:28:53,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:28:53,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:28:53,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:28:53,631 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:28:53,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:28:53,646 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:28:53,647 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:28:53,647 INFO L85 PathProgramCache]: Analyzing trace with hash 914334776, now seen corresponding path program 1 times [2023-11-23 22:28:53,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:28:53,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806024526] [2023-11-23 22:28:53,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:28:53,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:28:53,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:28:53,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:28:53,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:28:53,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806024526] [2023-11-23 22:28:53,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806024526] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:28:53,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:28:53,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 22:28:53,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708174429] [2023-11-23 22:28:53,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:28:54,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:28:54,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 22:28:54,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 22:28:54,104 INFO L87 Difference]: Start difference. First operand 195 states and 255 transitions. cyclomatic complexity: 63 Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 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) [2023-11-23 22:28:54,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:28:54,330 INFO L93 Difference]: Finished difference Result 608 states and 791 transitions. [2023-11-23 22:28:54,331 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 608 states and 791 transitions. [2023-11-23 22:28:54,342 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 413 [2023-11-23 22:28:54,351 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 608 states to 608 states and 791 transitions. [2023-11-23 22:28:54,355 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 608 [2023-11-23 22:28:54,357 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 608 [2023-11-23 22:28:54,358 INFO L73 IsDeterministic]: Start isDeterministic. Operand 608 states and 791 transitions. [2023-11-23 22:28:54,366 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:28:54,366 INFO L218 hiAutomatonCegarLoop]: Abstraction has 608 states and 791 transitions. [2023-11-23 22:28:54,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states and 791 transitions. [2023-11-23 22:28:54,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 376. [2023-11-23 22:28:54,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 376 states have (on average 1.2872340425531914) internal successors, (484), 375 states have internal predecessors, (484), 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) [2023-11-23 22:28:54,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 484 transitions. [2023-11-23 22:28:54,391 INFO L240 hiAutomatonCegarLoop]: Abstraction has 376 states and 484 transitions. [2023-11-23 22:28:54,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 22:28:54,397 INFO L428 stractBuchiCegarLoop]: Abstraction has 376 states and 484 transitions. [2023-11-23 22:28:54,398 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-23 22:28:54,399 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 376 states and 484 transitions. [2023-11-23 22:28:54,401 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 270 [2023-11-23 22:28:54,402 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-23 22:28:54,402 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-23 22:28:54,404 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:28:54,405 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] [2023-11-23 22:28:54,405 INFO L748 eck$LassoCheckResult]: Stem: 1203#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 1204#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret36#1, main_~retValue_acc~8#1, main_~tmp~4#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; 1200#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1201#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~7#1;havoc valid_product_~retValue_acc~7#1;valid_product_~retValue_acc~7#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~7#1; 1275#valid_product_returnLabel#1 main_#t~ret36#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~7#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret36#1;havoc main_#t~ret36#1; 1223#L696 assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 1224#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 1252#__utac_acc__Specification5_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1248#L722-2 [2023-11-23 22:28:54,405 INFO L750 eck$LassoCheckResult]: Loop: 1248#L722-2 assume !false; 1295#L723 assume test_~splverifierCounter~0#1 < 4; 1191#L724 havoc test_#t~nondet37#1;test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 1192#L732 assume !(0 != test_~tmp~5#1); 1202#L732-2 havoc test_#t~nondet38#1;test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 1284#L742 assume !(0 != test_~tmp___0~1#1); 1264#L742-2 havoc test_#t~nondet39#1;test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 1257#L752 assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet40#1;test_~tmp___1~0#1 := test_#t~nondet40#1;havoc test_#t~nondet40#1; 1237#L760 assume !(0 != test_~tmp___1~0#1); 1238#L760-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret32#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~10#1;havoc isPumpRunning_~retValue_acc~10#1;isPumpRunning_~retValue_acc~10#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~10#1; 1285#isPumpRunning_returnLabel#1 __utac_acc__Specification5_spec__2_#t~ret32#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~10#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret32#1;havoc __utac_acc__Specification5_spec__2_#t~ret32#1; 1269#__utac_acc__Specification5_spec__2_returnLabel#1 havoc __utac_acc__Specification5_spec__2_#t~ret32#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true; 1210#L793 assume !(0 != ~pumpRunning~0); 1211#L793-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret41#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 1253#L825 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 1259#processEnvironment__wrappee__base_returnLabel#2 assume { :end_inline_processEnvironment__wrappee__base } true; 1175#L825-1 havoc processEnvironment_#t~ret41#1, processEnvironment_~tmp~6#1;assume { :end_inline_processEnvironment } true; 1186#L800-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret33#1, __utac_acc__Specification5_spec__3_#t~ret34#1, __utac_acc__Specification5_spec__3_~tmp~3#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~3#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;havoc getWaterLevel_~retValue_acc~4#1;getWaterLevel_~retValue_acc~4#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~4#1; 1287#getWaterLevel_returnLabel#1 __utac_acc__Specification5_spec__3_#t~ret33#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~3#1 := __utac_acc__Specification5_spec__3_#t~ret33#1;havoc __utac_acc__Specification5_spec__3_#t~ret33#1; 1265#L541 assume 2 != __utac_acc__Specification5_spec__3_~tmp~3#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~10#1;havoc isPumpRunning_~retValue_acc~10#1;isPumpRunning_~retValue_acc~10#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~10#1; 1266#isPumpRunning_returnLabel#2 __utac_acc__Specification5_spec__3_#t~ret34#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~10#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~0#1 := __utac_acc__Specification5_spec__3_#t~ret34#1;havoc __utac_acc__Specification5_spec__3_#t~ret34#1; 1498#L545 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0#1); 1496#L541-1 havoc __utac_acc__Specification5_spec__3_#t~ret33#1, __utac_acc__Specification5_spec__3_#t~ret34#1, __utac_acc__Specification5_spec__3_~tmp~3#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true; 1247#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1248#L722-2 [2023-11-23 22:28:54,406 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:28:54,406 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2023-11-23 22:28:54,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:28:54,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765776970] [2023-11-23 22:28:54,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:28:54,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:28:54,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:28:54,423 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:28:54,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:28:54,445 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:28:54,446 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:28:54,446 INFO L85 PathProgramCache]: Analyzing trace with hash -1577436086, now seen corresponding path program 1 times [2023-11-23 22:28:54,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:28:54,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784413611] [2023-11-23 22:28:54,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:28:54,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:28:54,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:28:54,453 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:28:54,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:28:54,461 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:28:54,462 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:28:54,462 INFO L85 PathProgramCache]: Analyzing trace with hash -1813580749, now seen corresponding path program 1 times [2023-11-23 22:28:54,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:28:54,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353014227] [2023-11-23 22:28:54,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:28:54,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:28:54,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:28:54,475 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:28:54,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:28:54,489 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:28:55,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:28:55,766 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:28:55,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:28:55,851 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.11 10:28:55 BoogieIcfgContainer [2023-11-23 22:28:55,851 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-23 22:28:55,852 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 22:28:55,853 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 22:28:55,853 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 22:28:55,854 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:28:52" (3/4) ... [2023-11-23 22:28:55,855 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2023-11-23 22:28:55,935 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63841cdf-bc4d-410f-8b8f-bbca7bcc4ce5/bin/uautomizer-verify-zZY32mL2XJ/witness.graphml [2023-11-23 22:28:55,935 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 22:28:55,936 INFO L158 Benchmark]: Toolchain (without parser) took 4401.33ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 112.1MB in the beginning and 90.1MB in the end (delta: 22.0MB). Peak memory consumption was 55.2MB. Max. memory is 16.1GB. [2023-11-23 22:28:55,936 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 100.7MB. Free memory is still 54.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 22:28:55,936 INFO L158 Benchmark]: CACSL2BoogieTranslator took 536.20ms. Allocated memory is still 151.0MB. Free memory was 112.1MB in the beginning and 93.2MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-23 22:28:55,937 INFO L158 Benchmark]: Boogie Procedure Inliner took 90.41ms. Allocated memory is still 151.0MB. Free memory was 92.5MB in the beginning and 90.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 22:28:55,937 INFO L158 Benchmark]: Boogie Preprocessor took 54.07ms. Allocated memory is still 151.0MB. Free memory was 90.4MB in the beginning and 87.6MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 22:28:55,938 INFO L158 Benchmark]: RCFGBuilder took 546.71ms. Allocated memory is still 151.0MB. Free memory was 87.6MB in the beginning and 68.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-23 22:28:55,938 INFO L158 Benchmark]: BuchiAutomizer took 3085.11ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 68.8MB in the beginning and 93.3MB in the end (delta: -24.5MB). Peak memory consumption was 9.1MB. Max. memory is 16.1GB. [2023-11-23 22:28:55,938 INFO L158 Benchmark]: Witness Printer took 82.84ms. Allocated memory is still 182.5MB. Free memory was 93.3MB in the beginning and 90.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 22:28:55,940 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 100.7MB. Free memory is still 54.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 536.20ms. Allocated memory is still 151.0MB. Free memory was 112.1MB in the beginning and 93.2MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 90.41ms. Allocated memory is still 151.0MB. Free memory was 92.5MB in the beginning and 90.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.07ms. Allocated memory is still 151.0MB. Free memory was 90.4MB in the beginning and 87.6MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 546.71ms. Allocated memory is still 151.0MB. Free memory was 87.6MB in the beginning and 68.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * BuchiAutomizer took 3085.11ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 68.8MB in the beginning and 93.3MB in the end (delta: -24.5MB). Peak memory consumption was 9.1MB. Max. memory is 16.1GB. * Witness Printer took 82.84ms. Allocated memory is still 182.5MB. Free memory was 93.3MB in the beginning and 90.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [49] - GenericResultAtLocation [Line: 415]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [415] - GenericResultAtLocation [Line: 511]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [511] - GenericResultAtLocation [Line: 562]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [562] - GenericResultAtLocation [Line: 600]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [600] - GenericResultAtLocation [Line: 609]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [609] - GenericResultAtLocation [Line: 709]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [709] - GenericResultAtLocation [Line: 780]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [780] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 376 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.9s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.3s. Construction of modules took 0.1s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 235 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, 474 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 474 mSDsluCounter, 967 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 630 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 113 IncrementalHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 337 mSDtfsCounter, 113 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 722]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L423] int waterLevel = 1; [L424] int methaneLevelCritical = 0; [L514] int switchedOnBeforeTS ; [L610] int cleanupTimeShifts = 4; [L783] int pumpRunning = 0; [L784] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L687] int retValue_acc ; [L688] int tmp ; [L692] FCALL select_helpers() [L693] FCALL select_features() [L694] CALL, EXPR valid_product() [L592] int retValue_acc ; [L595] retValue_acc = 1 [L596] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L694] RET, EXPR valid_product() [L694] tmp = valid_product() [L696] COND TRUE \read(tmp) [L698] FCALL setup() [L699] CALL runTest() [L680] CALL __utac_acc__Specification5_spec__1() [L519] switchedOnBeforeTS = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L680] RET __utac_acc__Specification5_spec__1() [L681] CALL test() [L713] int splverifierCounter ; [L714] int tmp ; [L715] int tmp___0 ; [L716] int tmp___1 ; [L717] int tmp___2 ; [L720] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] Loop: [L722] COND TRUE 1 [L724] COND TRUE splverifierCounter < 4 [L730] tmp = __VERIFIER_nondet_int() [L732] COND FALSE !(\read(tmp)) [L740] tmp___0 = __VERIFIER_nondet_int() [L742] COND FALSE !(\read(tmp___0)) [L750] tmp___2 = __VERIFIER_nondet_int() [L752] COND FALSE !(\read(tmp___2)) [L758] tmp___1 = __VERIFIER_nondet_int() [L760] COND FALSE !(\read(tmp___1)) [L769] CALL timeShift() [L791] CALL __utac_acc__Specification5_spec__2() [L528] CALL, EXPR isPumpRunning() [L874] int retValue_acc ; [L877] retValue_acc = pumpRunning [L878] return (retValue_acc); [L528] RET, EXPR isPumpRunning() [L528] switchedOnBeforeTS = isPumpRunning() [L791] RET __utac_acc__Specification5_spec__2() [L793] COND FALSE !(\read(pumpRunning)) [L800] COND TRUE \read(systemActive) [L802] CALL processEnvironment() [L822] int tmp ; [L825] COND FALSE !(\read(pumpRunning)) [L840] FCALL processEnvironment__wrappee__base() [L802] RET processEnvironment() [L808] CALL __utac_acc__Specification5_spec__3() [L534] int tmp ; [L535] int tmp___0 ; [L539] CALL, EXPR getWaterLevel() [L494] int retValue_acc ; [L497] retValue_acc = waterLevel [L498] return (retValue_acc); [L539] RET, EXPR getWaterLevel() [L539] tmp = getWaterLevel() [L541] COND TRUE tmp != 2 [L543] CALL, EXPR isPumpRunning() [L874] int retValue_acc ; [L877] retValue_acc = pumpRunning [L878] return (retValue_acc); [L543] RET, EXPR isPumpRunning() [L543] tmp___0 = isPumpRunning() [L545] COND FALSE !(\read(tmp___0)) [L808] RET __utac_acc__Specification5_spec__3() [L769] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 722]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L423] int waterLevel = 1; [L424] int methaneLevelCritical = 0; [L514] int switchedOnBeforeTS ; [L610] int cleanupTimeShifts = 4; [L783] int pumpRunning = 0; [L784] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L687] int retValue_acc ; [L688] int tmp ; [L692] FCALL select_helpers() [L693] FCALL select_features() [L694] CALL, EXPR valid_product() [L592] int retValue_acc ; [L595] retValue_acc = 1 [L596] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L694] RET, EXPR valid_product() [L694] tmp = valid_product() [L696] COND TRUE \read(tmp) [L698] FCALL setup() [L699] CALL runTest() [L680] CALL __utac_acc__Specification5_spec__1() [L519] switchedOnBeforeTS = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L680] RET __utac_acc__Specification5_spec__1() [L681] CALL test() [L713] int splverifierCounter ; [L714] int tmp ; [L715] int tmp___0 ; [L716] int tmp___1 ; [L717] int tmp___2 ; [L720] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] Loop: [L722] COND TRUE 1 [L724] COND TRUE splverifierCounter < 4 [L730] tmp = __VERIFIER_nondet_int() [L732] COND FALSE !(\read(tmp)) [L740] tmp___0 = __VERIFIER_nondet_int() [L742] COND FALSE !(\read(tmp___0)) [L750] tmp___2 = __VERIFIER_nondet_int() [L752] COND FALSE !(\read(tmp___2)) [L758] tmp___1 = __VERIFIER_nondet_int() [L760] COND FALSE !(\read(tmp___1)) [L769] CALL timeShift() [L791] CALL __utac_acc__Specification5_spec__2() [L528] CALL, EXPR isPumpRunning() [L874] int retValue_acc ; [L877] retValue_acc = pumpRunning [L878] return (retValue_acc); [L528] RET, EXPR isPumpRunning() [L528] switchedOnBeforeTS = isPumpRunning() [L791] RET __utac_acc__Specification5_spec__2() [L793] COND FALSE !(\read(pumpRunning)) [L800] COND TRUE \read(systemActive) [L802] CALL processEnvironment() [L822] int tmp ; [L825] COND FALSE !(\read(pumpRunning)) [L840] FCALL processEnvironment__wrappee__base() [L802] RET processEnvironment() [L808] CALL __utac_acc__Specification5_spec__3() [L534] int tmp ; [L535] int tmp___0 ; [L539] CALL, EXPR getWaterLevel() [L494] int retValue_acc ; [L497] retValue_acc = waterLevel [L498] return (retValue_acc); [L539] RET, EXPR getWaterLevel() [L539] tmp = getWaterLevel() [L541] COND TRUE tmp != 2 [L543] CALL, EXPR isPumpRunning() [L874] int retValue_acc ; [L877] retValue_acc = pumpRunning [L878] return (retValue_acc); [L543] RET, EXPR isPumpRunning() [L543] tmp___0 = isPumpRunning() [L545] COND FALSE !(\read(tmp___0)) [L808] RET __utac_acc__Specification5_spec__3() [L769] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2023-11-23 22:28:56,000 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63841cdf-bc4d-410f-8b8f-bbca7bcc4ce5/bin/uautomizer-verify-zZY32mL2XJ/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)