./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product33.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663a3f51-878b-406b-ba24-b6821c0878d0/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663a3f51-878b-406b-ba24-b6821c0878d0/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663a3f51-878b-406b-ba24-b6821c0878d0/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663a3f51-878b-406b-ba24-b6821c0878d0/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product33.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663a3f51-878b-406b-ba24-b6821c0878d0/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663a3f51-878b-406b-ba24-b6821c0878d0/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ae076af2cea67b9cfc404edc1600766999266c2b24082e43516a66dae23512b8 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 08:06:00,583 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 08:06:00,704 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663a3f51-878b-406b-ba24-b6821c0878d0/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-19 08:06:00,715 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 08:06:00,716 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 08:06:00,745 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 08:06:00,746 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 08:06:00,746 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 08:06:00,747 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 08:06:00,748 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 08:06:00,749 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 08:06:00,749 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-19 08:06:00,750 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-19 08:06:00,751 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-19 08:06:00,751 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-19 08:06:00,752 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-19 08:06:00,752 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-19 08:06:00,753 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 08:06:00,754 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-19 08:06:00,754 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 08:06:00,755 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 08:06:00,756 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 08:06:00,756 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 08:06:00,757 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-19 08:06:00,758 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-19 08:06:00,758 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-19 08:06:00,759 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 08:06:00,760 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 08:06:00,760 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 08:06:00,761 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-19 08:06:00,761 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 08:06:00,762 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 08:06:00,762 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 08:06:00,763 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 08:06:00,764 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 08:06:00,765 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-19 08:06:00,765 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_663a3f51-878b-406b-ba24-b6821c0878d0/bin/uautomizer-verify-uCwYo4JHxu/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663a3f51-878b-406b-ba24-b6821c0878d0/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ae076af2cea67b9cfc404edc1600766999266c2b24082e43516a66dae23512b8 [2023-11-19 08:06:01,133 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 08:06:01,168 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 08:06:01,171 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 08:06:01,173 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 08:06:01,174 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 08:06:01,175 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663a3f51-878b-406b-ba24-b6821c0878d0/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/product-lines/minepump_spec1_product33.cil.c [2023-11-19 08:06:04,311 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 08:06:04,595 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 08:06:04,595 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663a3f51-878b-406b-ba24-b6821c0878d0/sv-benchmarks/c/product-lines/minepump_spec1_product33.cil.c [2023-11-19 08:06:04,613 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663a3f51-878b-406b-ba24-b6821c0878d0/bin/uautomizer-verify-uCwYo4JHxu/data/25eb0750a/63fa2ce0f9654ee690803e290db9ff24/FLAG1996c7b81 [2023-11-19 08:06:04,634 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663a3f51-878b-406b-ba24-b6821c0878d0/bin/uautomizer-verify-uCwYo4JHxu/data/25eb0750a/63fa2ce0f9654ee690803e290db9ff24 [2023-11-19 08:06:04,637 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 08:06:04,639 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 08:06:04,640 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 08:06:04,641 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 08:06:04,650 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 08:06:04,654 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:06:04" (1/1) ... [2023-11-19 08:06:04,655 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f10058c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:04, skipping insertion in model container [2023-11-19 08:06:04,655 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:06:04" (1/1) ... [2023-11-19 08:06:04,720 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 08:06:05,101 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:06:05,124 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 08:06:05,135 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [49] [2023-11-19 08:06:05,137 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [415] [2023-11-19 08:06:05,137 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [424] [2023-11-19 08:06:05,137 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [586] [2023-11-19 08:06:05,138 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [654] [2023-11-19 08:06:05,138 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [692] [2023-11-19 08:06:05,138 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [788] [2023-11-19 08:06:05,138 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [814] [2023-11-19 08:06:05,193 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:06:05,215 INFO L206 MainTranslator]: Completed translation [2023-11-19 08:06:05,216 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:05 WrapperNode [2023-11-19 08:06:05,216 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 08:06:05,218 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 08:06:05,218 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 08:06:05,218 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 08:06:05,226 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:05" (1/1) ... [2023-11-19 08:06:05,258 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:05" (1/1) ... [2023-11-19 08:06:05,299 INFO L138 Inliner]: procedures = 52, calls = 94, calls flagged for inlining = 47, calls inlined = 50, statements flattened = 339 [2023-11-19 08:06:05,303 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 08:06:05,304 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 08:06:05,305 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 08:06:05,305 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 08:06:05,314 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:05" (1/1) ... [2023-11-19 08:06:05,314 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:05" (1/1) ... [2023-11-19 08:06:05,317 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:05" (1/1) ... [2023-11-19 08:06:05,317 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:05" (1/1) ... [2023-11-19 08:06:05,330 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:05" (1/1) ... [2023-11-19 08:06:05,348 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:05" (1/1) ... [2023-11-19 08:06:05,351 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:05" (1/1) ... [2023-11-19 08:06:05,355 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:05" (1/1) ... [2023-11-19 08:06:05,370 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 08:06:05,371 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 08:06:05,371 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 08:06:05,371 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 08:06:05,372 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:05" (1/1) ... [2023-11-19 08:06:05,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:06:05,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663a3f51-878b-406b-ba24-b6821c0878d0/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:06:05,423 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663a3f51-878b-406b-ba24-b6821c0878d0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:06:05,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663a3f51-878b-406b-ba24-b6821c0878d0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-19 08:06:05,467 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 08:06:05,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 08:06:05,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 08:06:05,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 08:06:05,555 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 08:06:05,558 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 08:06:05,896 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 08:06:05,906 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 08:06:05,906 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 08:06:05,911 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:06:05 BoogieIcfgContainer [2023-11-19 08:06:05,911 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 08:06:05,912 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-19 08:06:05,912 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-19 08:06:05,917 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-19 08:06:05,918 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 08:06:05,918 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 08:06:04" (1/3) ... [2023-11-19 08:06:05,919 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@609a60f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 08:06:05, skipping insertion in model container [2023-11-19 08:06:05,919 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 08:06:05,920 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:05" (2/3) ... [2023-11-19 08:06:05,920 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@609a60f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 08:06:05, skipping insertion in model container [2023-11-19 08:06:05,920 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 08:06:05,921 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:06:05" (3/3) ... [2023-11-19 08:06:05,922 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product33.cil.c [2023-11-19 08:06:05,998 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-19 08:06:05,999 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-19 08:06:05,999 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-19 08:06:05,999 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-19 08:06:05,999 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-19 08:06:05,999 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-19 08:06:05,999 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-19 08:06:06,000 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-19 08:06:06,004 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 108 states, 107 states have (on average 1.3738317757009346) internal successors, (147), 107 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:06:06,037 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 68 [2023-11-19 08:06:06,038 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 08:06:06,038 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 08:06:06,043 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:06:06,043 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:06:06,043 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-19 08:06:06,044 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 108 states, 107 states have (on average 1.3738317757009346) internal successors, (147), 107 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:06:06,051 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 68 [2023-11-19 08:06:06,051 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 08:06:06,051 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 08:06:06,052 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:06:06,053 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:06:06,058 INFO L748 eck$LassoCheckResult]: Stem: 30#$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);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 37#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret43#1, main_~retValue_acc~8#1, main_~tmp~6#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 24#select_helpers_returnLabel#1true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 95#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; 82#valid_product_returnLabel#1true main_#t~ret43#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~7#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret43#1;havoc main_#t~ret43#1; 20#L775true assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 66#setup_returnLabel#1true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_#t~nondet41#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; 97#L600-2true [2023-11-19 08:06:06,059 INFO L750 eck$LassoCheckResult]: Loop: 97#L600-2true assume !false; 54#L601true assume test_~splverifierCounter~0#1 < 4; 11#L602true havoc test_#t~nondet38#1;test_~tmp~5#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 48#L610true assume !(0 != test_~tmp~5#1); 49#L610-2true havoc test_#t~nondet39#1;test_~tmp___0~1#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 50#L620true assume !(0 != test_~tmp___0~1#1); 32#L620-2true havoc test_#t~nondet40#1;test_~tmp___2~0#1 := test_#t~nondet40#1;havoc test_#t~nondet40#1; 74#L630true assume 0 != test_~tmp___2~0#1; 92#L636-2true assume { :begin_inline_timeShift } true; 28#L442true assume !(0 != ~pumpRunning~0); 89#L442-2true assume !(0 != ~systemActive~0); 86#L449-1true assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret44#1, __utac_acc__Specification1_spec__1_#t~ret45#1, __utac_acc__Specification1_spec__1_~tmp~7#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification1_spec__1_~tmp~7#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;isMethaneLevelCritical_~retValue_acc~9#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~9#1; 103#isMethaneLevelCritical_returnLabel#1true __utac_acc__Specification1_spec__1_#t~ret44#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~7#1 := __utac_acc__Specification1_spec__1_#t~ret44#1;havoc __utac_acc__Specification1_spec__1_#t~ret44#1; 78#L797true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~7#1); 77#L797-1true havoc __utac_acc__Specification1_spec__1_#t~ret44#1, __utac_acc__Specification1_spec__1_#t~ret45#1, __utac_acc__Specification1_spec__1_~tmp~7#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification1_spec__1 } true; 59#timeShift_returnLabel#1true assume { :end_inline_timeShift } true; 97#L600-2true [2023-11-19 08:06:06,065 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:06:06,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2023-11-19 08:06:06,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:06:06,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308349273] [2023-11-19 08:06:06,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:06:06,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:06:06,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:06:06,176 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:06:06,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:06:06,214 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 08:06:06,218 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:06:06,218 INFO L85 PathProgramCache]: Analyzing trace with hash -680966906, now seen corresponding path program 1 times [2023-11-19 08:06:06,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:06:06,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861476109] [2023-11-19 08:06:06,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:06:06,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:06:06,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:06:06,231 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:06:06,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:06:06,247 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 08:06:06,253 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:06:06,253 INFO L85 PathProgramCache]: Analyzing trace with hash 674452170, now seen corresponding path program 1 times [2023-11-19 08:06:06,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:06:06,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221938499] [2023-11-19 08:06:06,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:06:06,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:06:06,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:06,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:06:06,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:06:06,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221938499] [2023-11-19 08:06:06,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221938499] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:06:06,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:06:06,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 08:06:06,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392936312] [2023-11-19 08:06:06,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:06:06,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:06:06,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 08:06:06,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-19 08:06:06,751 INFO L87 Difference]: Start difference. First operand has 108 states, 107 states have (on average 1.3738317757009346) internal successors, (147), 107 states have internal predecessors, (147), 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) [2023-11-19 08:06:06,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:06:06,819 INFO L93 Difference]: Finished difference Result 102 states and 130 transitions. [2023-11-19 08:06:06,820 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 102 states and 130 transitions. [2023-11-19 08:06:06,824 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 62 [2023-11-19 08:06:06,830 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 102 states to 92 states and 120 transitions. [2023-11-19 08:06:06,831 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 92 [2023-11-19 08:06:06,831 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 92 [2023-11-19 08:06:06,832 INFO L73 IsDeterministic]: Start isDeterministic. Operand 92 states and 120 transitions. [2023-11-19 08:06:06,833 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:06:06,833 INFO L218 hiAutomatonCegarLoop]: Abstraction has 92 states and 120 transitions. [2023-11-19 08:06:06,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states and 120 transitions. [2023-11-19 08:06:06,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2023-11-19 08:06:06,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 92 states have (on average 1.3043478260869565) internal successors, (120), 91 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:06:06,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 120 transitions. [2023-11-19 08:06:06,870 INFO L240 hiAutomatonCegarLoop]: Abstraction has 92 states and 120 transitions. [2023-11-19 08:06:06,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 08:06:06,875 INFO L428 stractBuchiCegarLoop]: Abstraction has 92 states and 120 transitions. [2023-11-19 08:06:06,875 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-19 08:06:06,875 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 92 states and 120 transitions. [2023-11-19 08:06:06,878 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 62 [2023-11-19 08:06:06,878 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 08:06:06,878 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 08:06:06,879 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:06:06,879 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] [2023-11-19 08:06:06,879 INFO L748 eck$LassoCheckResult]: Stem: 296#$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);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 297#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret43#1, main_~retValue_acc~8#1, main_~tmp~6#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 282#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 283#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; 280#valid_product_returnLabel#1 main_#t~ret43#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~7#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret43#1;havoc main_#t~ret43#1; 277#L775 assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 230#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_#t~nondet41#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; 231#L600-2 [2023-11-19 08:06:06,880 INFO L750 eck$LassoCheckResult]: Loop: 231#L600-2 assume !false; 309#L601 assume test_~splverifierCounter~0#1 < 4; 250#L602 havoc test_#t~nondet38#1;test_~tmp~5#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 251#L610 assume !(0 != test_~tmp~5#1); 315#L610-2 havoc test_#t~nondet39#1;test_~tmp___0~1#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 317#L620 assume !(0 != test_~tmp___0~1#1); 285#L620-2 havoc test_#t~nondet40#1;test_~tmp___2~0#1 := test_#t~nondet40#1;havoc test_#t~nondet40#1; 261#L630 assume 0 != test_~tmp___2~0#1; 263#L636-2 assume { :begin_inline_timeShift } true; 286#L442 assume !(0 != ~pumpRunning~0); 287#L442-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret27#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 299#L474 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 236#processEnvironment__wrappee__base_returnLabel#2 assume { :end_inline_processEnvironment__wrappee__base } true; 233#L474-1 havoc processEnvironment_#t~ret27#1, processEnvironment_~tmp~3#1;assume { :end_inline_processEnvironment } true; 258#L449-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret44#1, __utac_acc__Specification1_spec__1_#t~ret45#1, __utac_acc__Specification1_spec__1_~tmp~7#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification1_spec__1_~tmp~7#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;isMethaneLevelCritical_~retValue_acc~9#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~9#1; 289#isMethaneLevelCritical_returnLabel#1 __utac_acc__Specification1_spec__1_#t~ret44#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~7#1 := __utac_acc__Specification1_spec__1_#t~ret44#1;havoc __utac_acc__Specification1_spec__1_#t~ret44#1; 273#L797 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~7#1); 267#L797-1 havoc __utac_acc__Specification1_spec__1_#t~ret44#1, __utac_acc__Specification1_spec__1_#t~ret45#1, __utac_acc__Specification1_spec__1_~tmp~7#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification1_spec__1 } true; 268#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 231#L600-2 [2023-11-19 08:06:06,880 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:06:06,881 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2023-11-19 08:06:06,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:06:06,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302852580] [2023-11-19 08:06:06,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:06:06,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:06:06,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:06:06,894 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:06:06,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:06:06,909 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 08:06:06,910 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:06:06,910 INFO L85 PathProgramCache]: Analyzing trace with hash -232246363, now seen corresponding path program 1 times [2023-11-19 08:06:06,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:06:06,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418632237] [2023-11-19 08:06:06,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:06:06,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:06:06,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:06,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:06:06,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:06:06,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418632237] [2023-11-19 08:06:06,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418632237] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:06:06,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:06:06,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 08:06:06,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118530015] [2023-11-19 08:06:06,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:06:06,941 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-19 08:06:06,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:06:06,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:06:06,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:06:06,942 INFO L87 Difference]: Start difference. First operand 92 states and 120 transitions. cyclomatic complexity: 30 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) [2023-11-19 08:06:06,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:06:06,997 INFO L93 Difference]: Finished difference Result 144 states and 182 transitions. [2023-11-19 08:06:06,997 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 144 states and 182 transitions. [2023-11-19 08:06:07,001 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 102 [2023-11-19 08:06:07,003 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 144 states to 144 states and 182 transitions. [2023-11-19 08:06:07,003 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 144 [2023-11-19 08:06:07,004 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 144 [2023-11-19 08:06:07,004 INFO L73 IsDeterministic]: Start isDeterministic. Operand 144 states and 182 transitions. [2023-11-19 08:06:07,005 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:06:07,005 INFO L218 hiAutomatonCegarLoop]: Abstraction has 144 states and 182 transitions. [2023-11-19 08:06:07,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states and 182 transitions. [2023-11-19 08:06:07,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2023-11-19 08:06:07,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 144 states have (on average 1.2638888888888888) internal successors, (182), 143 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:06:07,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 182 transitions. [2023-11-19 08:06:07,019 INFO L240 hiAutomatonCegarLoop]: Abstraction has 144 states and 182 transitions. [2023-11-19 08:06:07,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:06:07,020 INFO L428 stractBuchiCegarLoop]: Abstraction has 144 states and 182 transitions. [2023-11-19 08:06:07,020 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-19 08:06:07,021 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 144 states and 182 transitions. [2023-11-19 08:06:07,022 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 102 [2023-11-19 08:06:07,023 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 08:06:07,023 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 08:06:07,024 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:06:07,024 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:06:07,024 INFO L748 eck$LassoCheckResult]: Stem: 537#$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);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 538#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret43#1, main_~retValue_acc~8#1, main_~tmp~6#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 527#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 528#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; 525#valid_product_returnLabel#1 main_#t~ret43#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~7#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret43#1;havoc main_#t~ret43#1; 521#L775 assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 472#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_#t~nondet41#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; 473#L600-2 [2023-11-19 08:06:07,025 INFO L750 eck$LassoCheckResult]: Loop: 473#L600-2 assume !false; 553#L601 assume test_~splverifierCounter~0#1 < 4; 493#L602 havoc test_#t~nondet38#1;test_~tmp~5#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 494#L610 assume !(0 != test_~tmp~5#1); 560#L610-2 havoc test_#t~nondet39#1;test_~tmp___0~1#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 562#L620 assume !(0 != test_~tmp___0~1#1); 530#L620-2 havoc test_#t~nondet40#1;test_~tmp___2~0#1 := test_#t~nondet40#1;havoc test_#t~nondet40#1; 504#L630 assume 0 != test_~tmp___2~0#1; 506#L636-2 assume { :begin_inline_timeShift } true; 531#L442 assume !(0 != ~pumpRunning~0); 532#L442-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret27#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 542#L474 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret37#1, isHighWaterLevel_~retValue_acc~5#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~5#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~11#1;havoc isHighWaterSensorDry_~retValue_acc~11#1; 556#L899 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~11#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~11#1; 507#isHighWaterSensorDry_returnLabel#1 isHighWaterLevel_#t~ret37#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~11#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret37#1;havoc isHighWaterLevel_#t~ret37#1; 508#L576 assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~0#1 := 0; 522#L576-2 isHighWaterLevel_~retValue_acc~5#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~5#1; 546#isHighWaterLevel_returnLabel#1 processEnvironment_#t~ret27#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret37#1, isHighWaterLevel_~retValue_acc~5#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~0#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~3#1 := processEnvironment_#t~ret27#1;havoc processEnvironment_#t~ret27#1; 547#L478 assume !(0 != processEnvironment_~tmp~3#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 491#processEnvironment__wrappee__base_returnLabel#1 assume { :end_inline_processEnvironment__wrappee__base } true; 492#L474-1 havoc processEnvironment_#t~ret27#1, processEnvironment_~tmp~3#1;assume { :end_inline_processEnvironment } true; 613#L449-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret44#1, __utac_acc__Specification1_spec__1_#t~ret45#1, __utac_acc__Specification1_spec__1_~tmp~7#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification1_spec__1_~tmp~7#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;isMethaneLevelCritical_~retValue_acc~9#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~9#1; 612#isMethaneLevelCritical_returnLabel#1 __utac_acc__Specification1_spec__1_#t~ret44#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~7#1 := __utac_acc__Specification1_spec__1_#t~ret44#1;havoc __utac_acc__Specification1_spec__1_#t~ret44#1; 610#L797 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~7#1); 510#L797-1 havoc __utac_acc__Specification1_spec__1_#t~ret44#1, __utac_acc__Specification1_spec__1_#t~ret45#1, __utac_acc__Specification1_spec__1_~tmp~7#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification1_spec__1 } true; 511#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 473#L600-2 [2023-11-19 08:06:07,026 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:06:07,026 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2023-11-19 08:06:07,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:06:07,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402099523] [2023-11-19 08:06:07,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:06:07,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:06:07,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:06:07,039 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:06:07,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:06:07,051 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 08:06:07,052 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:06:07,052 INFO L85 PathProgramCache]: Analyzing trace with hash -1748465809, now seen corresponding path program 1 times [2023-11-19 08:06:07,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:06:07,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938852043] [2023-11-19 08:06:07,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:06:07,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:06:07,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:07,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:06:07,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:06:07,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938852043] [2023-11-19 08:06:07,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938852043] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:06:07,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:06:07,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 08:06:07,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624822889] [2023-11-19 08:06:07,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:06:07,132 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-19 08:06:07,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:06:07,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:06:07,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:06:07,134 INFO L87 Difference]: Start difference. First operand 144 states and 182 transitions. cyclomatic complexity: 40 Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:06:07,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:06:07,216 INFO L93 Difference]: Finished difference Result 284 states and 354 transitions. [2023-11-19 08:06:07,217 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 284 states and 354 transitions. [2023-11-19 08:06:07,220 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 206 [2023-11-19 08:06:07,224 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 284 states to 284 states and 354 transitions. [2023-11-19 08:06:07,224 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 284 [2023-11-19 08:06:07,225 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 284 [2023-11-19 08:06:07,225 INFO L73 IsDeterministic]: Start isDeterministic. Operand 284 states and 354 transitions. [2023-11-19 08:06:07,237 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:06:07,237 INFO L218 hiAutomatonCegarLoop]: Abstraction has 284 states and 354 transitions. [2023-11-19 08:06:07,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states and 354 transitions. [2023-11-19 08:06:07,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 150. [2023-11-19 08:06:07,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 150 states have (on average 1.2533333333333334) internal successors, (188), 149 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:06:07,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 188 transitions. [2023-11-19 08:06:07,262 INFO L240 hiAutomatonCegarLoop]: Abstraction has 150 states and 188 transitions. [2023-11-19 08:06:07,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 08:06:07,266 INFO L428 stractBuchiCegarLoop]: Abstraction has 150 states and 188 transitions. [2023-11-19 08:06:07,266 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-19 08:06:07,266 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 150 states and 188 transitions. [2023-11-19 08:06:07,268 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 106 [2023-11-19 08:06:07,268 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 08:06:07,268 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 08:06:07,269 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:06:07,269 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:06:07,269 INFO L748 eck$LassoCheckResult]: Stem: 977#$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);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 978#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret43#1, main_~retValue_acc~8#1, main_~tmp~6#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 965#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 966#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; 963#valid_product_returnLabel#1 main_#t~ret43#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~7#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret43#1;havoc main_#t~ret43#1; 958#L775 assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 909#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_#t~nondet41#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; 910#L600-2 [2023-11-19 08:06:07,269 INFO L750 eck$LassoCheckResult]: Loop: 910#L600-2 assume !false; 995#L601 assume test_~splverifierCounter~0#1 < 4; 930#L602 havoc test_#t~nondet38#1;test_~tmp~5#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 931#L610 assume !(0 != test_~tmp~5#1); 1003#L610-2 havoc test_#t~nondet39#1;test_~tmp___0~1#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 1005#L620 assume !(0 != test_~tmp___0~1#1); 969#L620-2 havoc test_#t~nondet40#1;test_~tmp___2~0#1 := test_#t~nondet40#1;havoc test_#t~nondet40#1; 941#L630 assume 0 != test_~tmp___2~0#1; 943#L636-2 assume { :begin_inline_timeShift } true; 970#L442 assume !(0 != ~pumpRunning~0); 971#L442-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret27#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 983#L474 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret37#1, isHighWaterLevel_~retValue_acc~5#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~5#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~11#1;havoc isHighWaterSensorDry_~retValue_acc~11#1; 998#L899 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~11#1; 945#isHighWaterSensorDry_returnLabel#1 isHighWaterLevel_#t~ret37#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~11#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret37#1;havoc isHighWaterLevel_#t~ret37#1; 946#L576 assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~0#1 := 0; 960#L576-2 isHighWaterLevel_~retValue_acc~5#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~5#1; 986#isHighWaterLevel_returnLabel#1 processEnvironment_#t~ret27#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret37#1, isHighWaterLevel_~retValue_acc~5#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~0#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~3#1 := processEnvironment_#t~ret27#1;havoc processEnvironment_#t~ret27#1; 987#L478 assume !(0 != processEnvironment_~tmp~3#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 928#processEnvironment__wrappee__base_returnLabel#1 assume { :end_inline_processEnvironment__wrappee__base } true; 929#L474-1 havoc processEnvironment_#t~ret27#1, processEnvironment_~tmp~3#1;assume { :end_inline_processEnvironment } true; 938#L449-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret44#1, __utac_acc__Specification1_spec__1_#t~ret45#1, __utac_acc__Specification1_spec__1_~tmp~7#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification1_spec__1_~tmp~7#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;isMethaneLevelCritical_~retValue_acc~9#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~9#1; 1040#isMethaneLevelCritical_returnLabel#1 __utac_acc__Specification1_spec__1_#t~ret44#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~7#1 := __utac_acc__Specification1_spec__1_#t~ret44#1;havoc __utac_acc__Specification1_spec__1_#t~ret44#1; 1038#L797 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~7#1); 1035#L797-1 havoc __utac_acc__Specification1_spec__1_#t~ret44#1, __utac_acc__Specification1_spec__1_#t~ret45#1, __utac_acc__Specification1_spec__1_~tmp~7#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification1_spec__1 } true; 1012#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 910#L600-2 [2023-11-19 08:06:07,270 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:06:07,270 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2023-11-19 08:06:07,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:06:07,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171668292] [2023-11-19 08:06:07,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:06:07,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:06:07,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:06:07,296 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:06:07,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:06:07,325 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 08:06:07,326 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:06:07,326 INFO L85 PathProgramCache]: Analyzing trace with hash -1161659795, now seen corresponding path program 1 times [2023-11-19 08:06:07,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:06:07,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883526976] [2023-11-19 08:06:07,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:06:07,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:06:07,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:06:07,347 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:06:07,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:06:07,363 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 08:06:07,363 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:06:07,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1882302761, now seen corresponding path program 1 times [2023-11-19 08:06:07,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:06:07,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991941197] [2023-11-19 08:06:07,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:06:07,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:06:07,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:06:07,377 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:06:07,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:06:07,394 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 08:06:08,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:06:08,623 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:06:08,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:06:08,706 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 08:06:08 BoogieIcfgContainer [2023-11-19 08:06:08,707 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-19 08:06:08,707 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 08:06:08,707 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 08:06:08,708 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 08:06:08,711 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:06:05" (3/4) ... [2023-11-19 08:06:08,713 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2023-11-19 08:06:08,789 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663a3f51-878b-406b-ba24-b6821c0878d0/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 08:06:08,790 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 08:06:08,791 INFO L158 Benchmark]: Toolchain (without parser) took 4151.89ms. Allocated memory was 161.5MB in the beginning and 195.0MB in the end (delta: 33.6MB). Free memory was 131.0MB in the beginning and 59.7MB in the end (delta: 71.3MB). Peak memory consumption was 104.8MB. Max. memory is 16.1GB. [2023-11-19 08:06:08,791 INFO L158 Benchmark]: CDTParser took 0.68ms. Allocated memory is still 121.6MB. Free memory is still 89.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 08:06:08,792 INFO L158 Benchmark]: CACSL2BoogieTranslator took 576.40ms. Allocated memory is still 161.5MB. Free memory was 130.3MB in the beginning and 120.5MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 08:06:08,792 INFO L158 Benchmark]: Boogie Procedure Inliner took 86.16ms. Allocated memory is still 161.5MB. Free memory was 120.5MB in the beginning and 117.7MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 08:06:08,793 INFO L158 Benchmark]: Boogie Preprocessor took 65.50ms. Allocated memory is still 161.5MB. Free memory was 117.7MB in the beginning and 115.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 08:06:08,795 INFO L158 Benchmark]: RCFGBuilder took 540.65ms. Allocated memory is still 161.5MB. Free memory was 115.6MB in the beginning and 97.5MB in the end (delta: 18.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-19 08:06:08,796 INFO L158 Benchmark]: BuchiAutomizer took 2794.46ms. Allocated memory was 161.5MB in the beginning and 195.0MB in the end (delta: 33.6MB). Free memory was 97.5MB in the beginning and 62.8MB in the end (delta: 34.6MB). Peak memory consumption was 68.9MB. Max. memory is 16.1GB. [2023-11-19 08:06:08,796 INFO L158 Benchmark]: Witness Printer took 82.61ms. Allocated memory is still 195.0MB. Free memory was 62.8MB in the beginning and 59.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 08:06:08,798 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.68ms. Allocated memory is still 121.6MB. Free memory is still 89.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 576.40ms. Allocated memory is still 161.5MB. Free memory was 130.3MB in the beginning and 120.5MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 86.16ms. Allocated memory is still 161.5MB. Free memory was 120.5MB in the beginning and 117.7MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 65.50ms. Allocated memory is still 161.5MB. Free memory was 117.7MB in the beginning and 115.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 540.65ms. Allocated memory is still 161.5MB. Free memory was 115.6MB in the beginning and 97.5MB in the end (delta: 18.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * BuchiAutomizer took 2794.46ms. Allocated memory was 161.5MB in the beginning and 195.0MB in the end (delta: 33.6MB). Free memory was 97.5MB in the beginning and 62.8MB in the end (delta: 34.6MB). Peak memory consumption was 68.9MB. Max. memory is 16.1GB. * Witness Printer took 82.61ms. Allocated memory is still 195.0MB. Free memory was 62.8MB in the beginning and 59.7MB 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,"wsllib_check.i","") [415] - GenericResultAtLocation [Line: 424]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [424] - GenericResultAtLocation [Line: 586]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [586] - GenericResultAtLocation [Line: 654]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [654] - GenericResultAtLocation [Line: 692]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [692] - GenericResultAtLocation [Line: 788]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [788] - GenericResultAtLocation [Line: 814]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [814] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 150 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.6s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 2.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 134 StatesRemovedByMinimization, 1 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, 576 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 576 mSDsluCounter, 808 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 356 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 67 IncrementalHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 452 mSDtfsCounter, 67 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 600]: 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; [L434] int pumpRunning = 0; [L435] int systemActive = 1; [L693] int cleanupTimeShifts = 4; [L816] int waterLevel = 1; [L817] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L766] int retValue_acc ; [L767] int tmp ; [L771] FCALL select_helpers() [L772] FCALL select_features() [L773] CALL, EXPR valid_product() [L684] int retValue_acc ; [L687] retValue_acc = 1 [L688] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L773] RET, EXPR valid_product() [L773] tmp = valid_product() [L775] COND TRUE \read(tmp) [L777] FCALL setup() [L778] CALL runTest() [L760] CALL test() [L591] int splverifierCounter ; [L592] int tmp ; [L593] int tmp___0 ; [L594] int tmp___1 ; [L595] int tmp___2 ; [L598] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L600] COND TRUE 1 [L602] COND TRUE splverifierCounter < 4 [L608] tmp = __VERIFIER_nondet_int() [L610] COND FALSE !(\read(tmp)) [L618] tmp___0 = __VERIFIER_nondet_int() [L620] COND FALSE !(\read(tmp___0)) [L628] tmp___2 = __VERIFIER_nondet_int() [L630] COND TRUE \read(tmp___2) [L643] CALL timeShift() [L442] COND FALSE !(\read(pumpRunning)) [L449] COND TRUE \read(systemActive) [L451] CALL processEnvironment() [L471] int tmp ; [L474] COND TRUE ! pumpRunning [L476] CALL, EXPR isHighWaterLevel() [L568] int retValue_acc ; [L569] int tmp ; [L570] int tmp___0 ; [L574] CALL, EXPR isHighWaterSensorDry() [L896] int retValue_acc ; [L899] COND TRUE waterLevel < 2 [L900] retValue_acc = 1 [L901] return (retValue_acc); [L574] RET, EXPR isHighWaterSensorDry() [L574] tmp = isHighWaterSensorDry() [L576] COND TRUE \read(tmp) [L577] tmp___0 = 0 [L581] retValue_acc = tmp___0 [L582] return (retValue_acc); [L476] RET, EXPR isHighWaterLevel() [L476] tmp = isHighWaterLevel() [L478] COND FALSE !(\read(tmp)) [L484] FCALL processEnvironment__wrappee__base() [L451] RET processEnvironment() [L457] CALL __utac_acc__Specification1_spec__1() [L790] int tmp ; [L791] int tmp___0 ; [L795] CALL, EXPR isMethaneLevelCritical() [L855] int retValue_acc ; [L858] retValue_acc = methaneLevelCritical [L859] return (retValue_acc); [L795] RET, EXPR isMethaneLevelCritical() [L795] tmp = isMethaneLevelCritical() [L797] COND FALSE !(\read(tmp)) [L457] RET __utac_acc__Specification1_spec__1() [L643] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 600]: 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; [L434] int pumpRunning = 0; [L435] int systemActive = 1; [L693] int cleanupTimeShifts = 4; [L816] int waterLevel = 1; [L817] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L766] int retValue_acc ; [L767] int tmp ; [L771] FCALL select_helpers() [L772] FCALL select_features() [L773] CALL, EXPR valid_product() [L684] int retValue_acc ; [L687] retValue_acc = 1 [L688] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L773] RET, EXPR valid_product() [L773] tmp = valid_product() [L775] COND TRUE \read(tmp) [L777] FCALL setup() [L778] CALL runTest() [L760] CALL test() [L591] int splverifierCounter ; [L592] int tmp ; [L593] int tmp___0 ; [L594] int tmp___1 ; [L595] int tmp___2 ; [L598] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L600] COND TRUE 1 [L602] COND TRUE splverifierCounter < 4 [L608] tmp = __VERIFIER_nondet_int() [L610] COND FALSE !(\read(tmp)) [L618] tmp___0 = __VERIFIER_nondet_int() [L620] COND FALSE !(\read(tmp___0)) [L628] tmp___2 = __VERIFIER_nondet_int() [L630] COND TRUE \read(tmp___2) [L643] CALL timeShift() [L442] COND FALSE !(\read(pumpRunning)) [L449] COND TRUE \read(systemActive) [L451] CALL processEnvironment() [L471] int tmp ; [L474] COND TRUE ! pumpRunning [L476] CALL, EXPR isHighWaterLevel() [L568] int retValue_acc ; [L569] int tmp ; [L570] int tmp___0 ; [L574] CALL, EXPR isHighWaterSensorDry() [L896] int retValue_acc ; [L899] COND TRUE waterLevel < 2 [L900] retValue_acc = 1 [L901] return (retValue_acc); [L574] RET, EXPR isHighWaterSensorDry() [L574] tmp = isHighWaterSensorDry() [L576] COND TRUE \read(tmp) [L577] tmp___0 = 0 [L581] retValue_acc = tmp___0 [L582] return (retValue_acc); [L476] RET, EXPR isHighWaterLevel() [L476] tmp = isHighWaterLevel() [L478] COND FALSE !(\read(tmp)) [L484] FCALL processEnvironment__wrappee__base() [L451] RET processEnvironment() [L457] CALL __utac_acc__Specification1_spec__1() [L790] int tmp ; [L791] int tmp___0 ; [L795] CALL, EXPR isMethaneLevelCritical() [L855] int retValue_acc ; [L858] retValue_acc = methaneLevelCritical [L859] return (retValue_acc); [L795] RET, EXPR isMethaneLevelCritical() [L795] tmp = isMethaneLevelCritical() [L797] COND FALSE !(\read(tmp)) [L457] RET __utac_acc__Specification1_spec__1() [L643] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2023-11-19 08:06:08,871 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663a3f51-878b-406b-ba24-b6821c0878d0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)