./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product23.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e7bb482b 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_9b08bac7-06de-49bd-9cc1-d91f28bc4cff/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b08bac7-06de-49bd-9cc1-d91f28bc4cff/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b08bac7-06de-49bd-9cc1-d91f28bc4cff/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b08bac7-06de-49bd-9cc1-d91f28bc4cff/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product23.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b08bac7-06de-49bd-9cc1-d91f28bc4cff/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b08bac7-06de-49bd-9cc1-d91f28bc4cff/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 e0a38d188f2630eb8c92d710d8937425c14dd1581e9216671e138a935f7e01f2 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:14:23,980 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:14:24,098 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b08bac7-06de-49bd-9cc1-d91f28bc4cff/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-06 22:14:24,107 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:14:24,108 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:14:24,142 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:14:24,143 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:14:24,143 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:14:24,147 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:14:24,154 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:14:24,156 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:14:24,156 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-06 22:14:24,157 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-06 22:14:24,159 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-06 22:14:24,159 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-06 22:14:24,160 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-06 22:14:24,160 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-06 22:14:24,161 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:14:24,162 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-06 22:14:24,162 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:14:24,162 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:14:24,163 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:14:24,163 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:14:24,164 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-06 22:14:24,164 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-06 22:14:24,165 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-06 22:14:24,165 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:14:24,166 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:14:24,166 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:14:24,166 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-06 22:14:24,167 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:14:24,167 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:14:24,168 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:14:24,168 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:14:24,168 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:14:24,169 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-06 22:14:24,169 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_9b08bac7-06de-49bd-9cc1-d91f28bc4cff/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b08bac7-06de-49bd-9cc1-d91f28bc4cff/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e0a38d188f2630eb8c92d710d8937425c14dd1581e9216671e138a935f7e01f2 [2023-11-06 22:14:24,526 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:14:24,565 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:14:24,567 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:14:24,569 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:14:24,570 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:14:24,571 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b08bac7-06de-49bd-9cc1-d91f28bc4cff/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/product-lines/minepump_spec3_product23.cil.c [2023-11-06 22:14:27,838 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:14:28,085 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:14:28,088 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b08bac7-06de-49bd-9cc1-d91f28bc4cff/sv-benchmarks/c/product-lines/minepump_spec3_product23.cil.c [2023-11-06 22:14:28,109 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b08bac7-06de-49bd-9cc1-d91f28bc4cff/bin/uautomizer-verify-WvqO1wxjHP/data/9e2fff306/42b1259251ec492c9acca70074a99dae/FLAGd7b63d01e [2023-11-06 22:14:28,127 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b08bac7-06de-49bd-9cc1-d91f28bc4cff/bin/uautomizer-verify-WvqO1wxjHP/data/9e2fff306/42b1259251ec492c9acca70074a99dae [2023-11-06 22:14:28,134 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:14:28,136 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:14:28,137 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:14:28,139 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:14:28,144 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:14:28,145 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:14:28" (1/1) ... [2023-11-06 22:14:28,146 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bf38c4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:14:28, skipping insertion in model container [2023-11-06 22:14:28,147 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:14:28" (1/1) ... [2023-11-06 22:14:28,221 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:14:28,556 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:14:28,580 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:14:28,591 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [49] [2023-11-06 22:14:28,593 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [145] [2023-11-06 22:14:28,594 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [181] [2023-11-06 22:14:28,594 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [379] [2023-11-06 22:14:28,594 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [447] [2023-11-06 22:14:28,595 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [546] [2023-11-06 22:14:28,595 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [555] [2023-11-06 22:14:28,595 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [921] [2023-11-06 22:14:28,673 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:14:28,693 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:14:28,694 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:14:28 WrapperNode [2023-11-06 22:14:28,694 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:14:28,695 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:14:28,696 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:14:28,696 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:14:28,704 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:14:28" (1/1) ... [2023-11-06 22:14:28,718 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:14:28" (1/1) ... [2023-11-06 22:14:28,755 INFO L138 Inliner]: procedures = 54, calls = 101, calls flagged for inlining = 54, calls inlined = 85, statements flattened = 547 [2023-11-06 22:14:28,755 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:14:28,756 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:14:28,756 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:14:28,756 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:14:28,767 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:14:28" (1/1) ... [2023-11-06 22:14:28,767 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:14:28" (1/1) ... [2023-11-06 22:14:28,771 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:14:28" (1/1) ... [2023-11-06 22:14:28,771 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:14:28" (1/1) ... [2023-11-06 22:14:28,783 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:14:28" (1/1) ... [2023-11-06 22:14:28,789 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:14:28" (1/1) ... [2023-11-06 22:14:28,792 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:14:28" (1/1) ... [2023-11-06 22:14:28,794 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:14:28" (1/1) ... [2023-11-06 22:14:28,799 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:14:28,801 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:14:28,801 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:14:28,801 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:14:28,802 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:14:28" (1/1) ... [2023-11-06 22:14:28,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:14:28,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b08bac7-06de-49bd-9cc1-d91f28bc4cff/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:14:28,837 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b08bac7-06de-49bd-9cc1-d91f28bc4cff/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:14:28,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b08bac7-06de-49bd-9cc1-d91f28bc4cff/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-06 22:14:28,892 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:14:28,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:14:28,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:14:28,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:14:28,979 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:14:28,982 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:14:29,469 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:14:29,480 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:14:29,480 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-06 22:14:29,483 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:14:29 BoogieIcfgContainer [2023-11-06 22:14:29,483 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:14:29,484 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-06 22:14:29,485 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-06 22:14:29,489 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-06 22:14:29,490 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 22:14:29,490 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.11 10:14:28" (1/3) ... [2023-11-06 22:14:29,491 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1d8a6ec0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.11 10:14:29, skipping insertion in model container [2023-11-06 22:14:29,492 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 22:14:29,492 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:14:28" (2/3) ... [2023-11-06 22:14:29,493 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1d8a6ec0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.11 10:14:29, skipping insertion in model container [2023-11-06 22:14:29,493 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 22:14:29,493 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:14:29" (3/3) ... [2023-11-06 22:14:29,495 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product23.cil.c [2023-11-06 22:14:29,590 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-06 22:14:29,591 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-06 22:14:29,591 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-06 22:14:29,591 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-06 22:14:29,592 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-06 22:14:29,592 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-06 22:14:29,593 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-06 22:14:29,593 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-06 22:14:29,601 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 163 states, 162 states have (on average 1.345679012345679) internal successors, (218), 162 states have internal predecessors, (218), 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) [2023-11-06 22:14:29,647 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 106 [2023-11-06 22:14:29,648 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:14:29,648 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:14:29,656 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:14:29,657 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:14:29,657 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-06 22:14:29,660 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 163 states, 162 states have (on average 1.345679012345679) internal successors, (218), 162 states have internal predecessors, (218), 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) [2023-11-06 22:14:29,676 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 106 [2023-11-06 22:14:29,678 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:14:29,679 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:14:29,681 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:14:29,681 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:14:29,687 INFO L748 eck$LassoCheckResult]: Stem: 37#$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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 53#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret28#1, main_~retValue_acc~6#1, main_~tmp~5#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 34#select_helpers_returnLabel#1true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 134#select_features_returnLabel#1true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 113#valid_product_returnLabel#1true main_#t~ret28#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret28#1;havoc main_#t~ret28#1; 150#L533true assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 100#setup_returnLabel#1true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet24#1, test_#t~nondet25#1, test_#t~nondet26#1, test_#t~nondet27#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~2#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 5#L391-2true [2023-11-06 22:14:29,689 INFO L750 eck$LassoCheckResult]: Loop: 5#L391-2true assume !false; 62#L392true assume test_~splverifierCounter~0#1 < 4; 25#L393true havoc test_#t~nondet24#1;test_~tmp~4#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1; 18#L401true assume !(0 != test_~tmp~4#1); 119#L401-2true havoc test_#t~nondet25#1;test_~tmp___0~2#1 := test_#t~nondet25#1;havoc test_#t~nondet25#1; 76#L411true assume !(0 != test_~tmp___0~2#1); 41#L411-2true havoc test_#t~nondet26#1;test_~tmp___2~0#1 := test_#t~nondet26#1;havoc test_#t~nondet26#1; 36#L421true assume 0 != test_~tmp___2~0#1; 87#L427-2true assume { :begin_inline_timeShift } true; 125#L194true assume !(0 != ~pumpRunning~0); 154#L194-2true assume !(0 != ~systemActive~0); 122#L201-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret9#1, __utac_acc__Specification3_spec__1_#t~ret10#1, __utac_acc__Specification3_spec__1_#t~ret11#1, __utac_acc__Specification3_spec__1_~tmp~0#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~0#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~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 96#isMethaneLevelCritical_returnLabel#2true __utac_acc__Specification3_spec__1_#t~ret9#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret9#1;havoc __utac_acc__Specification3_spec__1_#t~ret9#1; 15#L157true assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1; 26#L163-1true havoc __utac_acc__Specification3_spec__1_#t~ret9#1, __utac_acc__Specification3_spec__1_#t~ret10#1, __utac_acc__Specification3_spec__1_#t~ret11#1, __utac_acc__Specification3_spec__1_~tmp~0#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; 89#timeShift_returnLabel#1true assume { :end_inline_timeShift } true; 5#L391-2true [2023-11-06 22:14:29,700 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:14:29,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2023-11-06 22:14:29,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:14:29,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447975228] [2023-11-06 22:14:29,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:14:29,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:14:29,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:14:29,840 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:14:29,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:14:29,903 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:14:29,907 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:14:29,908 INFO L85 PathProgramCache]: Analyzing trace with hash -126041962, now seen corresponding path program 1 times [2023-11-06 22:14:29,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:14:29,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267578460] [2023-11-06 22:14:29,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:14:29,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:14:29,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:14:29,931 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:14:29,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:14:29,959 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:14:29,971 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:14:29,971 INFO L85 PathProgramCache]: Analyzing trace with hash 1229377114, now seen corresponding path program 1 times [2023-11-06 22:14:29,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:14:29,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012177687] [2023-11-06 22:14:29,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:14:29,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:14:30,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:14:30,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:14:30,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:14:30,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012177687] [2023-11-06 22:14:30,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012177687] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:14:30,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:14:30,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:14:30,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205861698] [2023-11-06 22:14:30,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:14:30,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:14:30,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:14:30,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:14:30,368 INFO L87 Difference]: Start difference. First operand has 163 states, 162 states have (on average 1.345679012345679) internal successors, (218), 162 states have internal predecessors, (218), 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 3.8333333333333335) internal successors, (23), 5 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) [2023-11-06 22:14:30,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:14:30,550 INFO L93 Difference]: Finished difference Result 377 states and 488 transitions. [2023-11-06 22:14:30,551 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 377 states and 488 transitions. [2023-11-06 22:14:30,560 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 243 [2023-11-06 22:14:30,568 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 377 states to 347 states and 458 transitions. [2023-11-06 22:14:30,569 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 347 [2023-11-06 22:14:30,571 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 347 [2023-11-06 22:14:30,572 INFO L73 IsDeterministic]: Start isDeterministic. Operand 347 states and 458 transitions. [2023-11-06 22:14:30,575 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:14:30,575 INFO L218 hiAutomatonCegarLoop]: Abstraction has 347 states and 458 transitions. [2023-11-06 22:14:30,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states and 458 transitions. [2023-11-06 22:14:30,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 205. [2023-11-06 22:14:30,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 205 states have (on average 1.3219512195121952) internal successors, (271), 204 states have internal predecessors, (271), 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) [2023-11-06 22:14:30,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 271 transitions. [2023-11-06 22:14:30,638 INFO L240 hiAutomatonCegarLoop]: Abstraction has 205 states and 271 transitions. [2023-11-06 22:14:30,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:14:30,646 INFO L428 stractBuchiCegarLoop]: Abstraction has 205 states and 271 transitions. [2023-11-06 22:14:30,647 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-06 22:14:30,647 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 205 states and 271 transitions. [2023-11-06 22:14:30,653 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 144 [2023-11-06 22:14:30,653 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:14:30,653 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:14:30,654 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:14:30,654 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] [2023-11-06 22:14:30,655 INFO L748 eck$LassoCheckResult]: Stem: 614#$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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 615#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret28#1, main_~retValue_acc~6#1, main_~tmp~5#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 609#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 610#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 687#valid_product_returnLabel#1 main_#t~ret28#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret28#1;havoc main_#t~ret28#1; 688#L533 assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 677#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet24#1, test_#t~nondet25#1, test_#t~nondet26#1, test_#t~nondet27#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~2#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 560#L391-2 [2023-11-06 22:14:30,655 INFO L750 eck$LassoCheckResult]: Loop: 560#L391-2 assume !false; 561#L392 assume test_~splverifierCounter~0#1 < 4; 600#L393 havoc test_#t~nondet24#1;test_~tmp~4#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1; 588#L401 assume !(0 != test_~tmp~4#1); 590#L401-2 havoc test_#t~nondet25#1;test_~tmp___0~2#1 := test_#t~nondet25#1;havoc test_#t~nondet25#1; 663#L411 assume !(0 != test_~tmp___0~2#1); 570#L411-2 havoc test_#t~nondet26#1;test_~tmp___2~0#1 := test_#t~nondet26#1;havoc test_#t~nondet26#1; 611#L421 assume 0 != test_~tmp___2~0#1; 613#L427-2 assume { :begin_inline_timeShift } true; 670#L194 assume !(0 != ~pumpRunning~0); 604#L194-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret13#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 655#L252 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret12#1, processEnvironment__wrappee__lowWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~1#1; 632#L226-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 558#processEnvironment__wrappee__base_returnLabel#4 assume { :end_inline_processEnvironment__wrappee__base } true; 559#L226-3 havoc processEnvironment__wrappee__lowWaterSensor_#t~ret12#1, processEnvironment__wrappee__lowWaterSensor_~tmp~1#1;assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 562#L252-1 havoc processEnvironment_#t~ret13#1, processEnvironment_~tmp~2#1;assume { :end_inline_processEnvironment } true; 619#L201-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret9#1, __utac_acc__Specification3_spec__1_#t~ret10#1, __utac_acc__Specification3_spec__1_#t~ret11#1, __utac_acc__Specification3_spec__1_~tmp~0#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~0#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~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 674#isMethaneLevelCritical_returnLabel#2 __utac_acc__Specification3_spec__1_#t~ret9#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret9#1;havoc __utac_acc__Specification3_spec__1_#t~ret9#1; 579#L157 assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1; 581#L163-1 havoc __utac_acc__Specification3_spec__1_#t~ret9#1, __utac_acc__Specification3_spec__1_#t~ret10#1, __utac_acc__Specification3_spec__1_#t~ret11#1, __utac_acc__Specification3_spec__1_~tmp~0#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; 603#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 560#L391-2 [2023-11-06 22:14:30,656 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:14:30,656 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2023-11-06 22:14:30,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:14:30,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183049756] [2023-11-06 22:14:30,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:14:30,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:14:30,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:14:30,668 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:14:30,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:14:30,679 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:14:30,680 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:14:30,680 INFO L85 PathProgramCache]: Analyzing trace with hash 953573147, now seen corresponding path program 1 times [2023-11-06 22:14:30,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:14:30,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734904425] [2023-11-06 22:14:30,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:14:30,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:14:30,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:14:30,689 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:14:30,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:14:30,697 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:14:30,697 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:14:30,698 INFO L85 PathProgramCache]: Analyzing trace with hash 1405242327, now seen corresponding path program 1 times [2023-11-06 22:14:30,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:14:30,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908165364] [2023-11-06 22:14:30,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:14:30,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:14:30,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:14:30,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:14:30,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:14:30,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908165364] [2023-11-06 22:14:30,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908165364] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:14:30,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:14:30,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:14:30,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685985629] [2023-11-06 22:14:30,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:14:30,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:14:30,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:14:30,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:14:30,990 INFO L87 Difference]: Start difference. First operand 205 states and 271 transitions. cyclomatic complexity: 69 Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 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) [2023-11-06 22:14:31,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:14:31,129 INFO L93 Difference]: Finished difference Result 506 states and 668 transitions. [2023-11-06 22:14:31,129 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 506 states and 668 transitions. [2023-11-06 22:14:31,135 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 362 [2023-11-06 22:14:31,141 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 506 states to 506 states and 668 transitions. [2023-11-06 22:14:31,142 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 506 [2023-11-06 22:14:31,143 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 506 [2023-11-06 22:14:31,143 INFO L73 IsDeterministic]: Start isDeterministic. Operand 506 states and 668 transitions. [2023-11-06 22:14:31,147 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:14:31,147 INFO L218 hiAutomatonCegarLoop]: Abstraction has 506 states and 668 transitions. [2023-11-06 22:14:31,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states and 668 transitions. [2023-11-06 22:14:31,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 403. [2023-11-06 22:14:31,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 403 states have (on average 1.3076923076923077) internal successors, (527), 402 states have internal predecessors, (527), 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) [2023-11-06 22:14:31,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 527 transitions. [2023-11-06 22:14:31,169 INFO L240 hiAutomatonCegarLoop]: Abstraction has 403 states and 527 transitions. [2023-11-06 22:14:31,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:14:31,171 INFO L428 stractBuchiCegarLoop]: Abstraction has 403 states and 527 transitions. [2023-11-06 22:14:31,171 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-06 22:14:31,171 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 403 states and 527 transitions. [2023-11-06 22:14:31,175 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 288 [2023-11-06 22:14:31,175 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:14:31,175 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:14:31,176 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:14:31,177 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] [2023-11-06 22:14:31,177 INFO L748 eck$LassoCheckResult]: Stem: 1345#$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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 1346#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret28#1, main_~retValue_acc~6#1, main_~tmp~5#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 1340#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1341#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 1446#valid_product_returnLabel#1 main_#t~ret28#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret28#1;havoc main_#t~ret28#1; 1447#L533 assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 1427#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet24#1, test_#t~nondet25#1, test_#t~nondet26#1, test_#t~nondet27#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~2#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1287#L391-2 [2023-11-06 22:14:31,177 INFO L750 eck$LassoCheckResult]: Loop: 1287#L391-2 assume !false; 1288#L392 assume test_~splverifierCounter~0#1 < 4; 1326#L393 havoc test_#t~nondet24#1;test_~tmp~4#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1; 1327#L401 assume !(0 != test_~tmp~4#1); 1665#L401-2 havoc test_#t~nondet25#1;test_~tmp___0~2#1 := test_#t~nondet25#1;havoc test_#t~nondet25#1; 1650#L411 assume !(0 != test_~tmp___0~2#1); 1647#L411-2 havoc test_#t~nondet26#1;test_~tmp___2~0#1 := test_#t~nondet26#1;havoc test_#t~nondet26#1; 1646#L421 assume 0 != test_~tmp___2~0#1; 1412#L427-2 assume { :begin_inline_timeShift } true; 1413#L194 assume !(0 != ~pumpRunning~0); 1332#L194-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret13#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 1488#L252 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret12#1, processEnvironment__wrappee__lowWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~1#1; 1630#L226-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 1670#processEnvironment__wrappee__base_returnLabel#4 assume { :end_inline_processEnvironment__wrappee__base } true; 1285#L226-3 havoc processEnvironment__wrappee__lowWaterSensor_#t~ret12#1, processEnvironment__wrappee__lowWaterSensor_~tmp~1#1;assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 1286#L252-1 havoc processEnvironment_#t~ret13#1, processEnvironment_~tmp~2#1;assume { :end_inline_processEnvironment } true; 1350#L201-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret9#1, __utac_acc__Specification3_spec__1_#t~ret10#1, __utac_acc__Specification3_spec__1_#t~ret11#1, __utac_acc__Specification3_spec__1_~tmp~0#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~0#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~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 1671#isMethaneLevelCritical_returnLabel#2 __utac_acc__Specification3_spec__1_#t~ret9#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret9#1;havoc __utac_acc__Specification3_spec__1_#t~ret9#1; 1305#L157 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~0#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 1306#getWaterLevel_returnLabel#1 __utac_acc__Specification3_spec__1_#t~ret10#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~0#1 := __utac_acc__Specification3_spec__1_#t~ret10#1;havoc __utac_acc__Specification3_spec__1_#t~ret10#1; 1395#L163 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0#1); 1330#L163-1 havoc __utac_acc__Specification3_spec__1_#t~ret9#1, __utac_acc__Specification3_spec__1_#t~ret10#1, __utac_acc__Specification3_spec__1_#t~ret11#1, __utac_acc__Specification3_spec__1_~tmp~0#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; 1331#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1287#L391-2 [2023-11-06 22:14:31,178 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:14:31,178 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2023-11-06 22:14:31,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:14:31,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749028912] [2023-11-06 22:14:31,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:14:31,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:14:31,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:14:31,189 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:14:31,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:14:31,199 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:14:31,200 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:14:31,201 INFO L85 PathProgramCache]: Analyzing trace with hash 1556954000, now seen corresponding path program 1 times [2023-11-06 22:14:31,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:14:31,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441986571] [2023-11-06 22:14:31,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:14:31,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:14:31,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:14:31,210 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:14:31,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:14:31,218 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:14:31,219 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:14:31,219 INFO L85 PathProgramCache]: Analyzing trace with hash 1819339084, now seen corresponding path program 1 times [2023-11-06 22:14:31,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:14:31,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383783097] [2023-11-06 22:14:31,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:14:31,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:14:31,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:14:31,234 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:14:31,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:14:31,252 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:14:32,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:14:32,506 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:14:32,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:14:32,565 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.11 10:14:32 BoogieIcfgContainer [2023-11-06 22:14:32,566 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-06 22:14:32,566 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:14:32,566 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:14:32,567 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:14:32,567 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:14:29" (3/4) ... [2023-11-06 22:14:32,568 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2023-11-06 22:14:32,622 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b08bac7-06de-49bd-9cc1-d91f28bc4cff/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 22:14:32,622 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:14:32,623 INFO L158 Benchmark]: Toolchain (without parser) took 4487.34ms. Allocated memory was 132.1MB in the beginning and 163.6MB in the end (delta: 31.5MB). Free memory was 92.1MB in the beginning and 54.7MB in the end (delta: 37.4MB). Peak memory consumption was 70.8MB. Max. memory is 16.1GB. [2023-11-06 22:14:32,624 INFO L158 Benchmark]: CDTParser took 0.69ms. Allocated memory is still 132.1MB. Free memory is still 105.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:14:32,624 INFO L158 Benchmark]: CACSL2BoogieTranslator took 557.36ms. Allocated memory is still 132.1MB. Free memory was 92.1MB in the beginning and 73.3MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-06 22:14:32,625 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.90ms. Allocated memory is still 132.1MB. Free memory was 73.3MB in the beginning and 70.3MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:14:32,625 INFO L158 Benchmark]: Boogie Preprocessor took 43.89ms. Allocated memory is still 132.1MB. Free memory was 70.3MB in the beginning and 67.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:14:32,626 INFO L158 Benchmark]: RCFGBuilder took 682.85ms. Allocated memory was 132.1MB in the beginning and 163.6MB in the end (delta: 31.5MB). Free memory was 67.8MB in the beginning and 126.6MB in the end (delta: -58.8MB). Peak memory consumption was 28.4MB. Max. memory is 16.1GB. [2023-11-06 22:14:32,626 INFO L158 Benchmark]: BuchiAutomizer took 3081.36ms. Allocated memory is still 163.6MB. Free memory was 126.6MB in the beginning and 56.8MB in the end (delta: 69.8MB). Peak memory consumption was 69.7MB. Max. memory is 16.1GB. [2023-11-06 22:14:32,627 INFO L158 Benchmark]: Witness Printer took 56.29ms. Allocated memory is still 163.6MB. Free memory was 56.8MB in the beginning and 54.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:14:32,629 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.69ms. Allocated memory is still 132.1MB. Free memory is still 105.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 557.36ms. Allocated memory is still 132.1MB. Free memory was 92.1MB in the beginning and 73.3MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.90ms. Allocated memory is still 132.1MB. Free memory was 73.3MB in the beginning and 70.3MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.89ms. Allocated memory is still 132.1MB. Free memory was 70.3MB in the beginning and 67.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 682.85ms. Allocated memory was 132.1MB in the beginning and 163.6MB in the end (delta: 31.5MB). Free memory was 67.8MB in the beginning and 126.6MB in the end (delta: -58.8MB). Peak memory consumption was 28.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 3081.36ms. Allocated memory is still 163.6MB. Free memory was 126.6MB in the beginning and 56.8MB in the end (delta: 69.8MB). Peak memory consumption was 69.7MB. Max. memory is 16.1GB. * Witness Printer took 56.29ms. Allocated memory is still 163.6MB. Free memory was 56.8MB in the beginning and 54.7MB in the end (delta: 2.1MB). 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,"Environment.i","") [49] - GenericResultAtLocation [Line: 145]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [145] - GenericResultAtLocation [Line: 181]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [181] - GenericResultAtLocation [Line: 379]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [379] - GenericResultAtLocation [Line: 447]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [447] - GenericResultAtLocation [Line: 546]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [546] - GenericResultAtLocation [Line: 555]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [555] - GenericResultAtLocation [Line: 921]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [921] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 403 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, 245 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, 1173 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1173 mSDsluCounter, 2012 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1550 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 114 IncrementalHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 462 mSDtfsCounter, 114 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 391]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L57] int waterLevel = 1; [L58] int methaneLevelCritical = 0; [L187] int pumpRunning = 0; [L188] int systemActive = 1; [L448] int cleanupTimeShifts = 4; [L725] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L524] int retValue_acc ; [L525] int tmp ; [L529] FCALL select_helpers() [L530] FCALL select_features() [L531] CALL, EXPR valid_product() [L948] int retValue_acc ; [L951] retValue_acc = 1 [L952] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L531] RET, EXPR valid_product() [L531] tmp = valid_product() [L533] COND TRUE \read(tmp) [L535] FCALL setup() [L536] CALL runTest() [L515] CALL test() [L382] int splverifierCounter ; [L383] int tmp ; [L384] int tmp___0 ; [L385] int tmp___1 ; [L386] int tmp___2 ; [L389] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L391] COND TRUE 1 [L393] COND TRUE splverifierCounter < 4 [L399] tmp = __VERIFIER_nondet_int() [L401] COND FALSE !(\read(tmp)) [L409] tmp___0 = __VERIFIER_nondet_int() [L411] COND FALSE !(\read(tmp___0)) [L419] tmp___2 = __VERIFIER_nondet_int() [L421] COND TRUE \read(tmp___2) [L436] CALL timeShift() [L194] COND FALSE !(\read(pumpRunning)) [L201] COND TRUE \read(systemActive) [L203] CALL processEnvironment() [L249] int tmp ; [L252] COND FALSE !(\read(pumpRunning)) [L267] CALL processEnvironment__wrappee__lowWaterSensor() [L223] int tmp ; [L226] COND FALSE !(\read(pumpRunning)) [L241] FCALL processEnvironment__wrappee__base() [L267] RET processEnvironment__wrappee__lowWaterSensor() [L203] RET processEnvironment() [L209] CALL __utac_acc__Specification3_spec__1() [L149] int tmp ; [L150] int tmp___0 ; [L151] int tmp___1 ; [L155] CALL, EXPR isMethaneLevelCritical() [L96] int retValue_acc ; [L99] retValue_acc = methaneLevelCritical [L100] return (retValue_acc); [L155] RET, EXPR isMethaneLevelCritical() [L155] tmp = isMethaneLevelCritical() [L157] COND FALSE !(\read(tmp)) [L161] CALL, EXPR getWaterLevel() [L128] int retValue_acc ; [L131] retValue_acc = waterLevel [L132] return (retValue_acc); [L161] RET, EXPR getWaterLevel() [L161] tmp___0 = getWaterLevel() [L163] COND FALSE !(tmp___0 == 2) [L209] RET __utac_acc__Specification3_spec__1() [L436] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 391]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L57] int waterLevel = 1; [L58] int methaneLevelCritical = 0; [L187] int pumpRunning = 0; [L188] int systemActive = 1; [L448] int cleanupTimeShifts = 4; [L725] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L524] int retValue_acc ; [L525] int tmp ; [L529] FCALL select_helpers() [L530] FCALL select_features() [L531] CALL, EXPR valid_product() [L948] int retValue_acc ; [L951] retValue_acc = 1 [L952] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L531] RET, EXPR valid_product() [L531] tmp = valid_product() [L533] COND TRUE \read(tmp) [L535] FCALL setup() [L536] CALL runTest() [L515] CALL test() [L382] int splverifierCounter ; [L383] int tmp ; [L384] int tmp___0 ; [L385] int tmp___1 ; [L386] int tmp___2 ; [L389] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L391] COND TRUE 1 [L393] COND TRUE splverifierCounter < 4 [L399] tmp = __VERIFIER_nondet_int() [L401] COND FALSE !(\read(tmp)) [L409] tmp___0 = __VERIFIER_nondet_int() [L411] COND FALSE !(\read(tmp___0)) [L419] tmp___2 = __VERIFIER_nondet_int() [L421] COND TRUE \read(tmp___2) [L436] CALL timeShift() [L194] COND FALSE !(\read(pumpRunning)) [L201] COND TRUE \read(systemActive) [L203] CALL processEnvironment() [L249] int tmp ; [L252] COND FALSE !(\read(pumpRunning)) [L267] CALL processEnvironment__wrappee__lowWaterSensor() [L223] int tmp ; [L226] COND FALSE !(\read(pumpRunning)) [L241] FCALL processEnvironment__wrappee__base() [L267] RET processEnvironment__wrappee__lowWaterSensor() [L203] RET processEnvironment() [L209] CALL __utac_acc__Specification3_spec__1() [L149] int tmp ; [L150] int tmp___0 ; [L151] int tmp___1 ; [L155] CALL, EXPR isMethaneLevelCritical() [L96] int retValue_acc ; [L99] retValue_acc = methaneLevelCritical [L100] return (retValue_acc); [L155] RET, EXPR isMethaneLevelCritical() [L155] tmp = isMethaneLevelCritical() [L157] COND FALSE !(\read(tmp)) [L161] CALL, EXPR getWaterLevel() [L128] int retValue_acc ; [L131] retValue_acc = waterLevel [L132] return (retValue_acc); [L161] RET, EXPR getWaterLevel() [L161] tmp___0 = getWaterLevel() [L163] COND FALSE !(tmp___0 == 2) [L209] RET __utac_acc__Specification3_spec__1() [L436] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2023-11-06 22:14:32,680 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b08bac7-06de-49bd-9cc1-d91f28bc4cff/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with 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)