./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product41.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 527bcce2 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_03640512-354d-45be-9c86-90b3aebb20b6/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03640512-354d-45be-9c86-90b3aebb20b6/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03640512-354d-45be-9c86-90b3aebb20b6/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03640512-354d-45be-9c86-90b3aebb20b6/bin/uautomizer-verify-bycVGegfSx/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product41.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03640512-354d-45be-9c86-90b3aebb20b6/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03640512-354d-45be-9c86-90b3aebb20b6/bin/uautomizer-verify-bycVGegfSx --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 7e401b19fa73801dafa3ee94892588c53fc375d864d82edcc9ff671172238c8c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:27:57,592 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:27:57,703 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03640512-354d-45be-9c86-90b3aebb20b6/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-21 22:27:57,714 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:27:57,718 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:27:57,761 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:27:57,764 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:27:57,765 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:27:57,766 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:27:57,774 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:27:57,776 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:27:57,776 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:27:57,777 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:27:57,780 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-21 22:27:57,780 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-21 22:27:57,781 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-21 22:27:57,781 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-21 22:27:57,781 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-21 22:27:57,782 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-21 22:27:57,782 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:27:57,783 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-21 22:27:57,784 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:27:57,784 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:27:57,785 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:27:57,785 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:27:57,785 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-21 22:27:57,786 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-21 22:27:57,786 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-21 22:27:57,787 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:27:57,787 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:27:57,789 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:27:57,789 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-21 22:27:57,789 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:27:57,790 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:27:57,790 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:27:57,790 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:27:57,791 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:27:57,791 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-21 22:27:57,791 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_03640512-354d-45be-9c86-90b3aebb20b6/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03640512-354d-45be-9c86-90b3aebb20b6/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e401b19fa73801dafa3ee94892588c53fc375d864d82edcc9ff671172238c8c [2023-11-21 22:27:58,136 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:27:58,208 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:27:58,211 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:27:58,212 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:27:58,213 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:27:58,215 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03640512-354d-45be-9c86-90b3aebb20b6/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/product-lines/minepump_spec1_product41.cil.c [2023-11-21 22:28:01,670 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:28:02,020 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:28:02,021 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03640512-354d-45be-9c86-90b3aebb20b6/sv-benchmarks/c/product-lines/minepump_spec1_product41.cil.c [2023-11-21 22:28:02,037 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03640512-354d-45be-9c86-90b3aebb20b6/bin/uautomizer-verify-bycVGegfSx/data/7f54bedad/140d7e578958477abe1959ccbf582cb1/FLAG403140395 [2023-11-21 22:28:02,052 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03640512-354d-45be-9c86-90b3aebb20b6/bin/uautomizer-verify-bycVGegfSx/data/7f54bedad/140d7e578958477abe1959ccbf582cb1 [2023-11-21 22:28:02,054 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:28:02,058 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:28:02,060 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:28:02,060 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:28:02,066 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:28:02,067 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:28:02" (1/1) ... [2023-11-21 22:28:02,068 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19faeb64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:02, skipping insertion in model container [2023-11-21 22:28:02,068 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:28:02" (1/1) ... [2023-11-21 22:28:02,147 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:28:02,439 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:28:02,454 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:28:02,465 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [49] [2023-11-21 22:28:02,467 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [415] [2023-11-21 22:28:02,468 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [484] [2023-11-21 22:28:02,468 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [583] [2023-11-21 22:28:02,468 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [758] [2023-11-21 22:28:02,468 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [857] [2023-11-21 22:28:02,469 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [892] [2023-11-21 22:28:02,469 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [901] [2023-11-21 22:28:02,539 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:28:02,559 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:28:02,560 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:02 WrapperNode [2023-11-21 22:28:02,560 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:28:02,561 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:28:02,561 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:28:02,562 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:28:02,569 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:02" (1/1) ... [2023-11-21 22:28:02,585 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:02" (1/1) ... [2023-11-21 22:28:02,629 INFO L138 Inliner]: procedures = 53, calls = 96, calls flagged for inlining = 49, calls inlined = 59, statements flattened = 402 [2023-11-21 22:28:02,638 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:28:02,639 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:28:02,639 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:28:02,640 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:28:02,661 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:02" (1/1) ... [2023-11-21 22:28:02,661 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:02" (1/1) ... [2023-11-21 22:28:02,664 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:02" (1/1) ... [2023-11-21 22:28:02,681 INFO L187 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-21 22:28:02,694 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:02" (1/1) ... [2023-11-21 22:28:02,694 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:02" (1/1) ... [2023-11-21 22:28:02,704 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:02" (1/1) ... [2023-11-21 22:28:02,720 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:02" (1/1) ... [2023-11-21 22:28:02,722 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:02" (1/1) ... [2023-11-21 22:28:02,724 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:02" (1/1) ... [2023-11-21 22:28:02,742 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:28:02,743 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:28:02,743 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:28:02,744 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:28:02,745 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:02" (1/1) ... [2023-11-21 22:28:02,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:28:02,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03640512-354d-45be-9c86-90b3aebb20b6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:28:02,797 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03640512-354d-45be-9c86-90b3aebb20b6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:28:02,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03640512-354d-45be-9c86-90b3aebb20b6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-21 22:28:02,838 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:28:02,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 22:28:02,838 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:28:02,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:28:02,928 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:28:02,930 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:28:03,337 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:28:03,352 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:28:03,353 INFO L308 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-21 22:28:03,371 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:28:03 BoogieIcfgContainer [2023-11-21 22:28:03,371 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:28:03,373 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-21 22:28:03,373 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-21 22:28:03,377 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-21 22:28:03,378 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-21 22:28:03,378 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.11 10:28:02" (1/3) ... [2023-11-21 22:28:03,379 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1a3d8125 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 10:28:03, skipping insertion in model container [2023-11-21 22:28:03,380 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-21 22:28:03,380 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:02" (2/3) ... [2023-11-21 22:28:03,380 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1a3d8125 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 10:28:03, skipping insertion in model container [2023-11-21 22:28:03,380 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-21 22:28:03,381 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:28:03" (3/3) ... [2023-11-21 22:28:03,382 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product41.cil.c [2023-11-21 22:28:03,451 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-21 22:28:03,451 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-21 22:28:03,451 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-21 22:28:03,452 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-21 22:28:03,452 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-21 22:28:03,452 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-21 22:28:03,452 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-21 22:28:03,453 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-21 22:28:03,458 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 120 states, 119 states have (on average 1.361344537815126) internal successors, (162), 119 states have internal predecessors, (162), 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) [2023-11-21 22:28:03,486 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 76 [2023-11-21 22:28:03,486 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 22:28:03,487 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 22:28:03,499 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:28:03,499 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:28:03,500 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-21 22:28:03,501 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 120 states, 119 states have (on average 1.361344537815126) internal successors, (162), 119 states have internal predecessors, (162), 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) [2023-11-21 22:28:03,510 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 76 [2023-11-21 22:28:03,510 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 22:28:03,510 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 22:28:03,511 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:28:03,512 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:28:03,518 INFO L748 eck$LassoCheckResult]: Stem: 27#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 35#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret48#1, main_~retValue_acc~9#1, main_~tmp~7#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 23#select_helpers_returnLabel#1true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 98#select_features_returnLabel#1true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~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; 81#valid_product_returnLabel#1true main_#t~ret48#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret48#1;havoc main_#t~ret48#1; 67#L844true assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 63#setup_returnLabel#1true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 45#L430-2true [2023-11-21 22:28:03,519 INFO L750 eck$LassoCheckResult]: Loop: 45#L430-2true assume !false; 118#L431true assume test_~splverifierCounter~0#1 < 4; 77#L432true havoc test_#t~nondet27#1;test_~tmp~3#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 94#L440true assume !(0 != test_~tmp~3#1); 91#L440-2true havoc test_#t~nondet28#1;test_~tmp___0~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 87#L450true assume !(0 != test_~tmp___0~0#1); 21#L450-2true havoc test_#t~nondet29#1;test_~tmp___2~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 53#L460true assume 0 != test_~tmp___2~0#1; 73#L466-2true assume { :begin_inline_timeShift } true; 40#L596true assume !(0 != ~pumpRunning~0); 105#L596-2true assume !(0 != ~systemActive~0); 90#L603-1true assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret50#1, __utac_acc__Specification1_spec__1_#t~ret51#1, __utac_acc__Specification1_spec__1_~tmp~8#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification1_spec__1_~tmp~8#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 61#isMethaneLevelCritical_returnLabel#2true __utac_acc__Specification1_spec__1_#t~ret50#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~8#1 := __utac_acc__Specification1_spec__1_#t~ret50#1;havoc __utac_acc__Specification1_spec__1_#t~ret50#1; 17#L910true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~8#1); 16#L910-1true havoc __utac_acc__Specification1_spec__1_#t~ret50#1, __utac_acc__Specification1_spec__1_#t~ret51#1, __utac_acc__Specification1_spec__1_~tmp~8#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification1_spec__1 } true; 56#timeShift_returnLabel#1true assume { :end_inline_timeShift } true; 45#L430-2true [2023-11-21 22:28:03,527 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:28:03,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2023-11-21 22:28:03,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:28:03,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856585702] [2023-11-21 22:28:03,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:28:03,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:28:03,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:28:03,660 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:28:03,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:28:03,719 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:28:03,722 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:28:03,722 INFO L85 PathProgramCache]: Analyzing trace with hash -325965434, now seen corresponding path program 1 times [2023-11-21 22:28:03,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:28:03,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560181025] [2023-11-21 22:28:03,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:28:03,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:28:03,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:28:03,736 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:28:03,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:28:03,750 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:28:03,754 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:28:03,758 INFO L85 PathProgramCache]: Analyzing trace with hash 1029453642, now seen corresponding path program 1 times [2023-11-21 22:28:03,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:28:03,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907300641] [2023-11-21 22:28:03,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:28:03,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:28:03,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:04,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:28:04,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:28:04,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907300641] [2023-11-21 22:28:04,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907300641] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:28:04,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:28:04,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:28:04,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940457531] [2023-11-21 22:28:04,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:28:04,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:28:04,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:28:04,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:28:04,402 INFO L87 Difference]: Start difference. First operand has 120 states, 119 states have (on average 1.361344537815126) internal successors, (162), 119 states have internal predecessors, (162), 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) [2023-11-21 22:28:04,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:28:04,538 INFO L93 Difference]: Finished difference Result 114 states and 145 transitions. [2023-11-21 22:28:04,544 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 114 states and 145 transitions. [2023-11-21 22:28:04,552 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 70 [2023-11-21 22:28:04,565 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 114 states to 104 states and 135 transitions. [2023-11-21 22:28:04,567 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 104 [2023-11-21 22:28:04,572 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 104 [2023-11-21 22:28:04,572 INFO L73 IsDeterministic]: Start isDeterministic. Operand 104 states and 135 transitions. [2023-11-21 22:28:04,574 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:28:04,574 INFO L218 hiAutomatonCegarLoop]: Abstraction has 104 states and 135 transitions. [2023-11-21 22:28:04,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states and 135 transitions. [2023-11-21 22:28:04,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2023-11-21 22:28:04,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 104 states have (on average 1.2980769230769231) internal successors, (135), 103 states have internal predecessors, (135), 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) [2023-11-21 22:28:04,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 135 transitions. [2023-11-21 22:28:04,617 INFO L240 hiAutomatonCegarLoop]: Abstraction has 104 states and 135 transitions. [2023-11-21 22:28:04,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 22:28:04,632 INFO L428 stractBuchiCegarLoop]: Abstraction has 104 states and 135 transitions. [2023-11-21 22:28:04,633 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-21 22:28:04,633 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 104 states and 135 transitions. [2023-11-21 22:28:04,638 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 70 [2023-11-21 22:28:04,642 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 22:28:04,642 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 22:28:04,643 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:28:04,643 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] [2023-11-21 22:28:04,644 INFO L748 eck$LassoCheckResult]: Stem: 290#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 291#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret48#1, main_~retValue_acc~9#1, main_~tmp~7#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 284#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 285#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; 344#valid_product_returnLabel#1 main_#t~ret48#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret48#1;havoc main_#t~ret48#1; 331#L844 assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 327#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 313#L430-2 [2023-11-21 22:28:04,645 INFO L750 eck$LassoCheckResult]: Loop: 313#L430-2 assume !false; 314#L431 assume test_~splverifierCounter~0#1 < 4; 340#L432 havoc test_#t~nondet27#1;test_~tmp~3#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 341#L440 assume !(0 != test_~tmp~3#1); 336#L440-2 havoc test_#t~nondet28#1;test_~tmp___0~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 346#L450 assume !(0 != test_~tmp___0~0#1); 282#L450-2 havoc test_#t~nondet29#1;test_~tmp___2~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 283#L460 assume 0 != test_~tmp___2~0#1; 323#L466-2 assume { :begin_inline_timeShift } true; 306#L596 assume !(0 != ~pumpRunning~0); 307#L596-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1; 310#L628 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 311#processEnvironment__wrappee__base_returnLabel#2 assume { :end_inline_processEnvironment__wrappee__base } true; 269#L628-1 havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~4#1;assume { :end_inline_processEnvironment } true; 342#L603-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret50#1, __utac_acc__Specification1_spec__1_#t~ret51#1, __utac_acc__Specification1_spec__1_~tmp~8#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification1_spec__1_~tmp~8#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 326#isMethaneLevelCritical_returnLabel#2 __utac_acc__Specification1_spec__1_#t~ret50#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~8#1 := __utac_acc__Specification1_spec__1_#t~ret50#1;havoc __utac_acc__Specification1_spec__1_#t~ret50#1; 275#L910 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~8#1); 273#L910-1 havoc __utac_acc__Specification1_spec__1_#t~ret50#1, __utac_acc__Specification1_spec__1_#t~ret51#1, __utac_acc__Specification1_spec__1_~tmp~8#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification1_spec__1 } true; 274#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 313#L430-2 [2023-11-21 22:28:04,645 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:28:04,646 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2023-11-21 22:28:04,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:28:04,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107416667] [2023-11-21 22:28:04,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:28:04,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:28:04,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:28:04,665 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:28:04,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:28:04,681 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:28:04,682 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:28:04,682 INFO L85 PathProgramCache]: Analyzing trace with hash 1621752229, now seen corresponding path program 1 times [2023-11-21 22:28:04,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:28:04,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569584159] [2023-11-21 22:28:04,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:28:04,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:28:04,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:04,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:28:04,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:28:04,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569584159] [2023-11-21 22:28:04,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569584159] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:28:04,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:28:04,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:28:04,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060459562] [2023-11-21 22:28:04,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:28:04,718 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-21 22:28:04,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:28:04,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:28:04,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:28:04,720 INFO L87 Difference]: Start difference. First operand 104 states and 135 transitions. cyclomatic complexity: 33 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) [2023-11-21 22:28:04,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:28:04,781 INFO L93 Difference]: Finished difference Result 159 states and 200 transitions. [2023-11-21 22:28:04,781 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 159 states and 200 transitions. [2023-11-21 22:28:04,785 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 112 [2023-11-21 22:28:04,787 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 159 states to 159 states and 200 transitions. [2023-11-21 22:28:04,788 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 159 [2023-11-21 22:28:04,788 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 159 [2023-11-21 22:28:04,789 INFO L73 IsDeterministic]: Start isDeterministic. Operand 159 states and 200 transitions. [2023-11-21 22:28:04,790 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:28:04,790 INFO L218 hiAutomatonCegarLoop]: Abstraction has 159 states and 200 transitions. [2023-11-21 22:28:04,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states and 200 transitions. [2023-11-21 22:28:04,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2023-11-21 22:28:04,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 159 states have (on average 1.2578616352201257) internal successors, (200), 158 states have internal predecessors, (200), 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) [2023-11-21 22:28:04,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 200 transitions. [2023-11-21 22:28:04,806 INFO L240 hiAutomatonCegarLoop]: Abstraction has 159 states and 200 transitions. [2023-11-21 22:28:04,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:28:04,809 INFO L428 stractBuchiCegarLoop]: Abstraction has 159 states and 200 transitions. [2023-11-21 22:28:04,809 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-21 22:28:04,811 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 159 states and 200 transitions. [2023-11-21 22:28:04,813 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 112 [2023-11-21 22:28:04,813 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 22:28:04,813 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 22:28:04,814 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:28:04,814 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] [2023-11-21 22:28:04,815 INFO L748 eck$LassoCheckResult]: Stem: 560#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 561#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret48#1, main_~retValue_acc~9#1, main_~tmp~7#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 554#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 555#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; 618#valid_product_returnLabel#1 main_#t~ret48#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret48#1;havoc main_#t~ret48#1; 603#L844 assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 598#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 584#L430-2 [2023-11-21 22:28:04,815 INFO L750 eck$LassoCheckResult]: Loop: 584#L430-2 assume !false; 585#L431 assume test_~splverifierCounter~0#1 < 4; 614#L432 havoc test_#t~nondet27#1;test_~tmp~3#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 615#L440 assume !(0 != test_~tmp~3#1); 609#L440-2 havoc test_#t~nondet28#1;test_~tmp___0~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 622#L450 assume !(0 != test_~tmp___0~0#1); 551#L450-2 havoc test_#t~nondet29#1;test_~tmp___2~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 552#L460 assume 0 != test_~tmp___2~0#1; 594#L466-2 assume { :begin_inline_timeShift } true; 578#L596 assume !(0 != ~pumpRunning~0); 579#L596-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1; 582#L628 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret47#1, isHighWaterLevel_~retValue_acc~8#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~8#1;havoc isHighWaterLevel_~tmp~6#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;havoc isHighWaterSensorDry_~retValue_acc~5#1; 583#L573 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~5#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~5#1; 545#isHighWaterSensorDry_returnLabel#1 isHighWaterLevel_#t~ret47#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret47#1;havoc isHighWaterLevel_#t~ret47#1; 546#L748 assume 0 != isHighWaterLevel_~tmp~6#1;isHighWaterLevel_~tmp___0~1#1 := 0; 529#L748-2 isHighWaterLevel_~retValue_acc~8#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~8#1; 530#isHighWaterLevel_returnLabel#1 processEnvironment_#t~ret36#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret47#1, isHighWaterLevel_~retValue_acc~8#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~4#1 := processEnvironment_#t~ret36#1;havoc processEnvironment_#t~ret36#1; 558#L632 assume !(0 != processEnvironment_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 537#processEnvironment__wrappee__base_returnLabel#1 assume { :end_inline_processEnvironment__wrappee__base } true; 538#L628-1 havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~4#1;assume { :end_inline_processEnvironment } true; 616#L603-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret50#1, __utac_acc__Specification1_spec__1_#t~ret51#1, __utac_acc__Specification1_spec__1_~tmp~8#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification1_spec__1_~tmp~8#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 597#isMethaneLevelCritical_returnLabel#2 __utac_acc__Specification1_spec__1_#t~ret50#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~8#1 := __utac_acc__Specification1_spec__1_#t~ret50#1;havoc __utac_acc__Specification1_spec__1_#t~ret50#1; 543#L910 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~8#1); 541#L910-1 havoc __utac_acc__Specification1_spec__1_#t~ret50#1, __utac_acc__Specification1_spec__1_#t~ret51#1, __utac_acc__Specification1_spec__1_~tmp~8#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification1_spec__1 } true; 542#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 584#L430-2 [2023-11-21 22:28:04,816 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:28:04,816 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2023-11-21 22:28:04,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:28:04,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289984637] [2023-11-21 22:28:04,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:28:04,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:28:04,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:28:04,829 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:28:04,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:28:04,842 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:28:04,843 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:28:04,843 INFO L85 PathProgramCache]: Analyzing trace with hash 105532783, now seen corresponding path program 1 times [2023-11-21 22:28:04,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:28:04,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168917175] [2023-11-21 22:28:04,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:28:04,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:28:04,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:04,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:28:04,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:28:04,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168917175] [2023-11-21 22:28:04,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168917175] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:28:04,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:28:04,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 22:28:04,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186971464] [2023-11-21 22:28:04,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:28:04,947 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-21 22:28:04,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:28:04,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:28:04,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:28:04,949 INFO L87 Difference]: Start difference. First operand 159 states and 200 transitions. cyclomatic complexity: 43 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) [2023-11-21 22:28:05,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:28:05,053 INFO L93 Difference]: Finished difference Result 314 states and 390 transitions. [2023-11-21 22:28:05,053 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 314 states and 390 transitions. [2023-11-21 22:28:05,060 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 226 [2023-11-21 22:28:05,069 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 314 states to 314 states and 390 transitions. [2023-11-21 22:28:05,070 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 314 [2023-11-21 22:28:05,072 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 314 [2023-11-21 22:28:05,073 INFO L73 IsDeterministic]: Start isDeterministic. Operand 314 states and 390 transitions. [2023-11-21 22:28:05,083 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:28:05,084 INFO L218 hiAutomatonCegarLoop]: Abstraction has 314 states and 390 transitions. [2023-11-21 22:28:05,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states and 390 transitions. [2023-11-21 22:28:05,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 165. [2023-11-21 22:28:05,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 165 states have (on average 1.2484848484848485) internal successors, (206), 164 states have internal predecessors, (206), 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) [2023-11-21 22:28:05,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 206 transitions. [2023-11-21 22:28:05,103 INFO L240 hiAutomatonCegarLoop]: Abstraction has 165 states and 206 transitions. [2023-11-21 22:28:05,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 22:28:05,109 INFO L428 stractBuchiCegarLoop]: Abstraction has 165 states and 206 transitions. [2023-11-21 22:28:05,110 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-21 22:28:05,110 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 165 states and 206 transitions. [2023-11-21 22:28:05,114 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 116 [2023-11-21 22:28:05,115 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 22:28:05,115 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 22:28:05,116 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:28:05,116 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] [2023-11-21 22:28:05,116 INFO L748 eck$LassoCheckResult]: Stem: 1042#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 1043#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret48#1, main_~retValue_acc~9#1, main_~tmp~7#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 1036#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1037#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; 1106#valid_product_returnLabel#1 main_#t~ret48#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret48#1;havoc main_#t~ret48#1; 1090#L844 assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 1084#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1085#L430-2 [2023-11-21 22:28:05,116 INFO L750 eck$LassoCheckResult]: Loop: 1085#L430-2 assume !false; 1128#L431 assume test_~splverifierCounter~0#1 < 4; 1129#L432 havoc test_#t~nondet27#1;test_~tmp~3#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 1152#L440 assume !(0 != test_~tmp~3#1); 1149#L440-2 havoc test_#t~nondet28#1;test_~tmp___0~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 1144#L450 assume !(0 != test_~tmp___0~0#1); 1140#L450-2 havoc test_#t~nondet29#1;test_~tmp___2~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 1137#L460 assume 0 != test_~tmp___2~0#1; 1134#L466-2 assume { :begin_inline_timeShift } true; 1061#L596 assume !(0 != ~pumpRunning~0); 1062#L596-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1; 1065#L628 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret47#1, isHighWaterLevel_~retValue_acc~8#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~8#1;havoc isHighWaterLevel_~tmp~6#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;havoc isHighWaterSensorDry_~retValue_acc~5#1; 1066#L573 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~5#1; 1027#isHighWaterSensorDry_returnLabel#1 isHighWaterLevel_#t~ret47#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret47#1;havoc isHighWaterLevel_#t~ret47#1; 1028#L748 assume 0 != isHighWaterLevel_~tmp~6#1;isHighWaterLevel_~tmp___0~1#1 := 0; 1011#L748-2 isHighWaterLevel_~retValue_acc~8#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~8#1; 1012#isHighWaterLevel_returnLabel#1 processEnvironment_#t~ret36#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret47#1, isHighWaterLevel_~retValue_acc~8#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~4#1 := processEnvironment_#t~ret36#1;havoc processEnvironment_#t~ret36#1; 1040#L632 assume !(0 != processEnvironment_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1019#processEnvironment__wrappee__base_returnLabel#1 assume { :end_inline_processEnvironment__wrappee__base } true; 1020#L628-1 havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~4#1;assume { :end_inline_processEnvironment } true; 1167#L603-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret50#1, __utac_acc__Specification1_spec__1_#t~ret51#1, __utac_acc__Specification1_spec__1_~tmp~8#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification1_spec__1_~tmp~8#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 1166#isMethaneLevelCritical_returnLabel#2 __utac_acc__Specification1_spec__1_#t~ret50#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~8#1 := __utac_acc__Specification1_spec__1_#t~ret50#1;havoc __utac_acc__Specification1_spec__1_#t~ret50#1; 1163#L910 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~8#1); 1161#L910-1 havoc __utac_acc__Specification1_spec__1_#t~ret50#1, __utac_acc__Specification1_spec__1_#t~ret51#1, __utac_acc__Specification1_spec__1_~tmp~8#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification1_spec__1 } true; 1159#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1085#L430-2 [2023-11-21 22:28:05,117 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:28:05,117 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2023-11-21 22:28:05,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:28:05,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465951739] [2023-11-21 22:28:05,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:28:05,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:28:05,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:28:05,130 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:28:05,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:28:05,157 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:28:05,166 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:28:05,166 INFO L85 PathProgramCache]: Analyzing trace with hash 692338797, now seen corresponding path program 1 times [2023-11-21 22:28:05,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:28:05,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970120081] [2023-11-21 22:28:05,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:28:05,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:28:05,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:28:05,189 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:28:05,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:28:05,218 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:28:05,219 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:28:05,219 INFO L85 PathProgramCache]: Analyzing trace with hash -558665943, now seen corresponding path program 1 times [2023-11-21 22:28:05,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:28:05,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108620849] [2023-11-21 22:28:05,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:28:05,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:28:05,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:28:05,247 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:28:05,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:28:05,265 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:28:06,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:28:06,670 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:28:06,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:28:06,766 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.11 10:28:06 BoogieIcfgContainer [2023-11-21 22:28:06,768 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-21 22:28:06,769 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 22:28:06,769 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 22:28:06,769 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 22:28:06,770 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:28:03" (3/4) ... [2023-11-21 22:28:06,772 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2023-11-21 22:28:06,841 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03640512-354d-45be-9c86-90b3aebb20b6/bin/uautomizer-verify-bycVGegfSx/witness.graphml [2023-11-21 22:28:06,841 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 22:28:06,850 INFO L158 Benchmark]: Toolchain (without parser) took 4786.19ms. Allocated memory is still 218.1MB. Free memory was 170.1MB in the beginning and 91.6MB in the end (delta: 78.4MB). Peak memory consumption was 80.5MB. Max. memory is 16.1GB. [2023-11-21 22:28:06,850 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 218.1MB. Free memory is still 193.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:28:06,851 INFO L158 Benchmark]: CACSL2BoogieTranslator took 500.55ms. Allocated memory is still 218.1MB. Free memory was 170.1MB in the beginning and 151.2MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-21 22:28:06,852 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.35ms. Allocated memory is still 218.1MB. Free memory was 151.2MB in the beginning and 148.3MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:28:06,853 INFO L158 Benchmark]: Boogie Preprocessor took 102.75ms. Allocated memory is still 218.1MB. Free memory was 148.3MB in the beginning and 145.5MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 22:28:06,853 INFO L158 Benchmark]: RCFGBuilder took 628.40ms. Allocated memory is still 218.1MB. Free memory was 145.5MB in the beginning and 126.0MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-21 22:28:06,855 INFO L158 Benchmark]: BuchiAutomizer took 3395.48ms. Allocated memory is still 218.1MB. Free memory was 125.7MB in the beginning and 94.8MB in the end (delta: 30.9MB). Peak memory consumption was 32.2MB. Max. memory is 16.1GB. [2023-11-21 22:28:06,856 INFO L158 Benchmark]: Witness Printer took 73.10ms. Allocated memory is still 218.1MB. Free memory was 94.8MB in the beginning and 91.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 22:28:06,859 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 218.1MB. Free memory is still 193.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 500.55ms. Allocated memory is still 218.1MB. Free memory was 170.1MB in the beginning and 151.2MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.35ms. Allocated memory is still 218.1MB. Free memory was 151.2MB in the beginning and 148.3MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 102.75ms. Allocated memory is still 218.1MB. Free memory was 148.3MB in the beginning and 145.5MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 628.40ms. Allocated memory is still 218.1MB. Free memory was 145.5MB in the beginning and 126.0MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * BuchiAutomizer took 3395.48ms. Allocated memory is still 218.1MB. Free memory was 125.7MB in the beginning and 94.8MB in the end (delta: 30.9MB). Peak memory consumption was 32.2MB. Max. memory is 16.1GB. * Witness Printer took 73.10ms. Allocated memory is still 218.1MB. Free memory was 94.8MB in the beginning and 91.6MB 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,"scenario.i","") [415] - GenericResultAtLocation [Line: 484]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [484] - GenericResultAtLocation [Line: 583]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [583] - GenericResultAtLocation [Line: 758]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [758] - GenericResultAtLocation [Line: 857]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [857] - GenericResultAtLocation [Line: 892]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [892] - GenericResultAtLocation [Line: 901]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [901] * 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 165 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.2s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 2.6s. Construction of modules took 0.1s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 149 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, 652 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 652 mSDsluCounter, 892 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 399 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 67 IncrementalHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 493 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: 430]: 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; [L490] int waterLevel = 1; [L491] int methaneLevelCritical = 0; [L588] int pumpRunning = 0; [L589] int systemActive = 1; [L759] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L835] int retValue_acc ; [L836] int tmp ; [L840] FCALL select_helpers() [L841] FCALL select_features() [L842] CALL, EXPR valid_product() [L884] int retValue_acc ; [L887] retValue_acc = 1 [L888] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L842] RET, EXPR valid_product() [L842] tmp = valid_product() [L844] COND TRUE \read(tmp) [L846] FCALL setup() [L847] CALL runTest() [L826] CALL test() [L421] int splverifierCounter ; [L422] int tmp ; [L423] int tmp___0 ; [L424] int tmp___1 ; [L425] int tmp___2 ; [L428] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L430] COND TRUE 1 [L432] COND TRUE splverifierCounter < 4 [L438] tmp = __VERIFIER_nondet_int() [L440] COND FALSE !(\read(tmp)) [L448] tmp___0 = __VERIFIER_nondet_int() [L450] COND FALSE !(\read(tmp___0)) [L458] tmp___2 = __VERIFIER_nondet_int() [L460] COND TRUE \read(tmp___2) [L473] CALL timeShift() [L596] COND FALSE !(\read(pumpRunning)) [L603] COND TRUE \read(systemActive) [L605] CALL processEnvironment() [L625] int tmp ; [L628] COND TRUE ! pumpRunning [L630] CALL, EXPR isHighWaterLevel() [L740] int retValue_acc ; [L741] int tmp ; [L742] int tmp___0 ; [L746] CALL, EXPR isHighWaterSensorDry() [L570] int retValue_acc ; [L573] COND TRUE waterLevel < 2 [L574] retValue_acc = 1 [L575] return (retValue_acc); [L746] RET, EXPR isHighWaterSensorDry() [L746] tmp = isHighWaterSensorDry() [L748] COND TRUE \read(tmp) [L749] tmp___0 = 0 [L753] retValue_acc = tmp___0 [L754] return (retValue_acc); [L630] RET, EXPR isHighWaterLevel() [L630] tmp = isHighWaterLevel() [L632] COND FALSE !(\read(tmp)) [L638] FCALL processEnvironment__wrappee__base() [L605] RET processEnvironment() [L611] CALL __utac_acc__Specification1_spec__1() [L903] int tmp ; [L904] int tmp___0 ; [L908] CALL, EXPR isMethaneLevelCritical() [L529] int retValue_acc ; [L532] retValue_acc = methaneLevelCritical [L533] return (retValue_acc); [L908] RET, EXPR isMethaneLevelCritical() [L908] tmp = isMethaneLevelCritical() [L910] COND FALSE !(\read(tmp)) [L611] RET __utac_acc__Specification1_spec__1() [L473] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 430]: 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; [L490] int waterLevel = 1; [L491] int methaneLevelCritical = 0; [L588] int pumpRunning = 0; [L589] int systemActive = 1; [L759] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L835] int retValue_acc ; [L836] int tmp ; [L840] FCALL select_helpers() [L841] FCALL select_features() [L842] CALL, EXPR valid_product() [L884] int retValue_acc ; [L887] retValue_acc = 1 [L888] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L842] RET, EXPR valid_product() [L842] tmp = valid_product() [L844] COND TRUE \read(tmp) [L846] FCALL setup() [L847] CALL runTest() [L826] CALL test() [L421] int splverifierCounter ; [L422] int tmp ; [L423] int tmp___0 ; [L424] int tmp___1 ; [L425] int tmp___2 ; [L428] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L430] COND TRUE 1 [L432] COND TRUE splverifierCounter < 4 [L438] tmp = __VERIFIER_nondet_int() [L440] COND FALSE !(\read(tmp)) [L448] tmp___0 = __VERIFIER_nondet_int() [L450] COND FALSE !(\read(tmp___0)) [L458] tmp___2 = __VERIFIER_nondet_int() [L460] COND TRUE \read(tmp___2) [L473] CALL timeShift() [L596] COND FALSE !(\read(pumpRunning)) [L603] COND TRUE \read(systemActive) [L605] CALL processEnvironment() [L625] int tmp ; [L628] COND TRUE ! pumpRunning [L630] CALL, EXPR isHighWaterLevel() [L740] int retValue_acc ; [L741] int tmp ; [L742] int tmp___0 ; [L746] CALL, EXPR isHighWaterSensorDry() [L570] int retValue_acc ; [L573] COND TRUE waterLevel < 2 [L574] retValue_acc = 1 [L575] return (retValue_acc); [L746] RET, EXPR isHighWaterSensorDry() [L746] tmp = isHighWaterSensorDry() [L748] COND TRUE \read(tmp) [L749] tmp___0 = 0 [L753] retValue_acc = tmp___0 [L754] return (retValue_acc); [L630] RET, EXPR isHighWaterLevel() [L630] tmp = isHighWaterLevel() [L632] COND FALSE !(\read(tmp)) [L638] FCALL processEnvironment__wrappee__base() [L605] RET processEnvironment() [L611] CALL __utac_acc__Specification1_spec__1() [L903] int tmp ; [L904] int tmp___0 ; [L908] CALL, EXPR isMethaneLevelCritical() [L529] int retValue_acc ; [L532] retValue_acc = methaneLevelCritical [L533] return (retValue_acc); [L908] RET, EXPR isMethaneLevelCritical() [L908] tmp = isMethaneLevelCritical() [L910] COND FALSE !(\read(tmp)) [L611] RET __utac_acc__Specification1_spec__1() [L473] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2023-11-21 22:28:06,954 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03640512-354d-45be-9c86-90b3aebb20b6/bin/uautomizer-verify-bycVGegfSx/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)