./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product52.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a0165632 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_53640487-2768-4d6c-ae64-2df266710161/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53640487-2768-4d6c-ae64-2df266710161/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53640487-2768-4d6c-ae64-2df266710161/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53640487-2768-4d6c-ae64-2df266710161/bin/uautomizer-verify-jihMAELWvX/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product52.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53640487-2768-4d6c-ae64-2df266710161/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53640487-2768-4d6c-ae64-2df266710161/bin/uautomizer-verify-jihMAELWvX --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 e70c7d407828df40e6ca35d99b4a3a65ee0ebef631e767452684b3cd94b17437 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:52:18,269 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:52:18,384 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53640487-2768-4d6c-ae64-2df266710161/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-08 18:52:18,392 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:52:18,395 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:52:18,438 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:52:18,439 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:52:18,440 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:52:18,441 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 18:52:18,442 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 18:52:18,443 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:52:18,444 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:52:18,444 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:52:18,445 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-08 18:52:18,445 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-08 18:52:18,446 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-08 18:52:18,446 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-08 18:52:18,446 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-08 18:52:18,447 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-08 18:52:18,447 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:52:18,452 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-08 18:52:18,453 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 18:52:18,453 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 18:52:18,457 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 18:52:18,458 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:52:18,458 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-08 18:52:18,458 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-08 18:52:18,459 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-08 18:52:18,459 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:52:18,459 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 18:52:18,460 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 18:52:18,460 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:52:18,460 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-08 18:52:18,462 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:52:18,462 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:52:18,463 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:52:18,464 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:52:18,465 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 18:52:18,466 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-08 18:52:18,466 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_53640487-2768-4d6c-ae64-2df266710161/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53640487-2768-4d6c-ae64-2df266710161/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e70c7d407828df40e6ca35d99b4a3a65ee0ebef631e767452684b3cd94b17437 [2024-11-08 18:52:18,807 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:52:18,841 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:52:18,844 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:52:18,848 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:52:18,849 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:52:18,851 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53640487-2768-4d6c-ae64-2df266710161/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/product-lines/minepump_spec3_product52.cil.c Unable to find full path for "g++" [2024-11-08 18:52:21,216 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:52:21,543 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:52:21,544 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53640487-2768-4d6c-ae64-2df266710161/sv-benchmarks/c/product-lines/minepump_spec3_product52.cil.c [2024-11-08 18:52:21,561 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53640487-2768-4d6c-ae64-2df266710161/bin/uautomizer-verify-jihMAELWvX/data/0cb32d6f7/f0a23c44c1e445369260bb0a5bd58e42/FLAGaccb9c6bc [2024-11-08 18:52:21,589 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53640487-2768-4d6c-ae64-2df266710161/bin/uautomizer-verify-jihMAELWvX/data/0cb32d6f7/f0a23c44c1e445369260bb0a5bd58e42 [2024-11-08 18:52:21,592 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:52:21,594 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:52:21,596 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:52:21,596 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:52:21,605 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:52:21,606 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:52:21" (1/1) ... [2024-11-08 18:52:21,607 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b5164c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:52:21, skipping insertion in model container [2024-11-08 18:52:21,608 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:52:21" (1/1) ... [2024-11-08 18:52:21,683 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:52:22,198 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:52:22,216 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:52:22,230 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [49] [2024-11-08 18:52:22,233 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [87] [2024-11-08 18:52:22,233 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [196] [2024-11-08 18:52:22,234 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [562] [2024-11-08 18:52:22,234 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [788] [2024-11-08 18:52:22,234 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [858] [2024-11-08 18:52:22,235 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [867] [2024-11-08 18:52:22,235 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [905] [2024-11-08 18:52:22,351 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:52:22,392 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:52:22,393 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:52:22 WrapperNode [2024-11-08 18:52:22,393 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:52:22,395 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:52:22,395 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:52:22,395 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:52:22,406 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:52:22" (1/1) ... [2024-11-08 18:52:22,431 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:52:22" (1/1) ... [2024-11-08 18:52:22,495 INFO L138 Inliner]: procedures = 57, calls = 103, calls flagged for inlining = 56, calls inlined = 86, statements flattened = 590 [2024-11-08 18:52:22,496 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:52:22,497 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:52:22,497 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:52:22,498 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:52:22,518 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:52:22" (1/1) ... [2024-11-08 18:52:22,518 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:52:22" (1/1) ... [2024-11-08 18:52:22,530 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:52:22" (1/1) ... [2024-11-08 18:52:22,587 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-08 18:52:22,589 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:52:22" (1/1) ... [2024-11-08 18:52:22,598 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:52:22" (1/1) ... [2024-11-08 18:52:22,626 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:52:22" (1/1) ... [2024-11-08 18:52:22,636 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:52:22" (1/1) ... [2024-11-08 18:52:22,638 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:52:22" (1/1) ... [2024-11-08 18:52:22,641 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:52:22" (1/1) ... [2024-11-08 18:52:22,646 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:52:22,647 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:52:22,648 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:52:22,648 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:52:22,649 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:52:22" (1/1) ... [2024-11-08 18:52:22,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 18:52:22,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53640487-2768-4d6c-ae64-2df266710161/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:52:22,703 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53640487-2768-4d6c-ae64-2df266710161/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 18:52:22,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53640487-2768-4d6c-ae64-2df266710161/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-08 18:52:22,753 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:52:22,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 18:52:22,754 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:52:22,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:52:22,888 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:52:22,891 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:52:23,595 INFO L? ?]: Removed 142 outVars from TransFormulas that were not future-live. [2024-11-08 18:52:23,595 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:52:23,615 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:52:23,615 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-08 18:52:23,616 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:52:23 BoogieIcfgContainer [2024-11-08 18:52:23,616 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:52:23,617 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-08 18:52:23,617 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-08 18:52:23,622 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-08 18:52:23,623 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-08 18:52:23,624 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 08.11 06:52:21" (1/3) ... [2024-11-08 18:52:23,625 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7b4510f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 08.11 06:52:23, skipping insertion in model container [2024-11-08 18:52:23,625 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-08 18:52:23,625 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:52:22" (2/3) ... [2024-11-08 18:52:23,626 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7b4510f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 08.11 06:52:23, skipping insertion in model container [2024-11-08 18:52:23,626 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-08 18:52:23,626 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:52:23" (3/3) ... [2024-11-08 18:52:23,629 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product52.cil.c [2024-11-08 18:52:23,717 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-08 18:52:23,718 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-08 18:52:23,719 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-08 18:52:23,719 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-08 18:52:23,719 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-08 18:52:23,719 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-08 18:52:23,719 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-08 18:52:23,720 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-08 18:52:23,726 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 176 states, 175 states have (on average 1.3714285714285714) internal successors, (240), 175 states have internal predecessors, (240), 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) [2024-11-08 18:52:23,767 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 115 [2024-11-08 18:52:23,771 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-08 18:52:23,771 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-08 18:52:23,782 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:52:23,782 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:52:23,782 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-08 18:52:23,786 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 176 states, 175 states have (on average 1.3714285714285714) internal successors, (240), 175 states have internal predecessors, (240), 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) [2024-11-08 18:52:23,798 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 115 [2024-11-08 18:52:23,799 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-08 18:52:23,799 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-08 18:52:23,800 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:52:23,800 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:52:23,809 INFO L745 eck$LassoCheckResult]: Stem: 35#$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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 48#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~9#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 31#select_helpers_returnLabel#1true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 146#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~12#1;havoc valid_product_~retValue_acc~12#1;valid_product_~retValue_acc~12#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~12#1; 122#valid_product_returnLabel#1true main_#t~ret53#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~12#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 46#L988true assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 98#setup_returnLabel#1true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet48#1, test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~3#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 123#L800-2true [2024-11-08 18:52:23,810 INFO L747 eck$LassoCheckResult]: Loop: 123#L800-2true assume !false; 155#L801true assume test_~splverifierCounter~0#1 < 4; 67#L802true havoc test_#t~nondet48#1;test_~tmp~8#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1; 7#L810true assume !(0 != test_~tmp~8#1); 29#L810-2true havoc test_#t~nondet49#1;test_~tmp___0~3#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 33#L820true assume !(0 != test_~tmp___0~3#1); 133#L820-2true havoc test_#t~nondet50#1;test_~tmp___2~0#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 142#L830true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 70#startSystem_returnLabel#1true assume { :end_inline_startSystem } true; 140#L838-2true assume { :begin_inline_timeShift } true; 116#L576true assume !(0 != ~pumpRunning~0); 55#L576-2true assume !(0 != ~systemActive~0); 50#L583-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 165#isMethaneLevelCritical_returnLabel#1true __utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1; 9#L63true assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1; 171#L69-1true havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 87#timeShift_returnLabel#1true assume { :end_inline_timeShift } true; 123#L800-2true [2024-11-08 18:52:23,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:52:23,822 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2024-11-08 18:52:23,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:52:23,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678044994] [2024-11-08 18:52:23,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:52:23,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:52:23,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:52:23,965 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 18:52:23,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:52:24,032 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 18:52:24,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:52:24,036 INFO L85 PathProgramCache]: Analyzing trace with hash 1813565554, now seen corresponding path program 1 times [2024-11-08 18:52:24,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:52:24,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600505608] [2024-11-08 18:52:24,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:52:24,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:52:24,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:24,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:52:24,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:52:24,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600505608] [2024-11-08 18:52:24,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600505608] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:52:24,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:52:24,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:52:24,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804498046] [2024-11-08 18:52:24,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:52:24,151 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-08 18:52:24,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:52:24,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:52:24,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:52:24,203 INFO L87 Difference]: Start difference. First operand has 176 states, 175 states have (on average 1.3714285714285714) internal successors, (240), 175 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2024-11-08 18:52:24,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:52:24,293 INFO L93 Difference]: Finished difference Result 331 states and 441 transitions. [2024-11-08 18:52:24,295 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 331 states and 441 transitions. [2024-11-08 18:52:24,304 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 216 [2024-11-08 18:52:24,314 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 331 states to 311 states and 420 transitions. [2024-11-08 18:52:24,315 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 311 [2024-11-08 18:52:24,317 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 311 [2024-11-08 18:52:24,318 INFO L73 IsDeterministic]: Start isDeterministic. Operand 311 states and 420 transitions. [2024-11-08 18:52:24,320 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-08 18:52:24,320 INFO L218 hiAutomatonCegarLoop]: Abstraction has 311 states and 420 transitions. [2024-11-08 18:52:24,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states and 420 transitions. [2024-11-08 18:52:24,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 308. [2024-11-08 18:52:24,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 308 states have (on average 1.3506493506493507) internal successors, (416), 307 states have internal predecessors, (416), 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) [2024-11-08 18:52:24,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 416 transitions. [2024-11-08 18:52:24,375 INFO L240 hiAutomatonCegarLoop]: Abstraction has 308 states and 416 transitions. [2024-11-08 18:52:24,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:52:24,382 INFO L425 stractBuchiCegarLoop]: Abstraction has 308 states and 416 transitions. [2024-11-08 18:52:24,382 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-08 18:52:24,382 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 308 states and 416 transitions. [2024-11-08 18:52:24,387 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 213 [2024-11-08 18:52:24,388 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-08 18:52:24,388 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-08 18:52:24,389 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:52:24,389 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] [2024-11-08 18:52:24,390 INFO L745 eck$LassoCheckResult]: Stem: 567#$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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 568#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~9#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 561#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 562#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~12#1;havoc valid_product_~retValue_acc~12#1;valid_product_~retValue_acc~12#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~12#1; 668#valid_product_returnLabel#1 main_#t~ret53#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~12#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 585#L988 assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 586#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet48#1, test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~3#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 644#L800-2 [2024-11-08 18:52:24,390 INFO L747 eck$LassoCheckResult]: Loop: 644#L800-2 assume !false; 669#L801 assume test_~splverifierCounter~0#1 < 4; 707#L802 havoc test_#t~nondet48#1;test_~tmp~8#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1; 739#L810 assume !(0 != test_~tmp~8#1); 737#L810-2 havoc test_#t~nondet49#1;test_~tmp___0~3#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 734#L820 assume !(0 != test_~tmp___0~3#1); 675#L820-2 havoc test_#t~nondet50#1;test_~tmp___2~0#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 676#L830 assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet51#1;test_~tmp___1~1#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 569#L838 assume !(0 != test_~tmp___1~1#1); 570#L838-2 assume { :begin_inline_timeShift } true; 660#L576 assume !(0 != ~pumpRunning~0); 597#L576-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 598#L634 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret35#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4#1; 674#L608-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 516#processEnvironment__wrappee__base_returnLabel#4 assume { :end_inline_processEnvironment__wrappee__base } true; 517#L608-3 havoc processEnvironment__wrappee__highWaterSensor_#t~ret35#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 572#L634-1 havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~5#1;assume { :end_inline_processEnvironment } true; 590#L583-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 591#isMethaneLevelCritical_returnLabel#1 __utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1; 710#L63 assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1; 709#L69-1 havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 708#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 644#L800-2 [2024-11-08 18:52:24,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:52:24,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2024-11-08 18:52:24,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:52:24,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441471763] [2024-11-08 18:52:24,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:52:24,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:52:24,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:52:24,410 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 18:52:24,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:52:24,427 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 18:52:24,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:52:24,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1480766999, now seen corresponding path program 1 times [2024-11-08 18:52:24,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:52:24,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567528228] [2024-11-08 18:52:24,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:52:24,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:52:24,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:24,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:52:24,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:52:24,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567528228] [2024-11-08 18:52:24,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567528228] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:52:24,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:52:24,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:52:24,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208907854] [2024-11-08 18:52:24,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:52:24,469 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-08 18:52:24,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:52:24,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:52:24,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:52:24,471 INFO L87 Difference]: Start difference. First operand 308 states and 416 transitions. cyclomatic complexity: 111 Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2024-11-08 18:52:24,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:52:24,610 INFO L93 Difference]: Finished difference Result 432 states and 563 transitions. [2024-11-08 18:52:24,611 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 432 states and 563 transitions. [2024-11-08 18:52:24,621 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 307 [2024-11-08 18:52:24,626 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 432 states to 432 states and 563 transitions. [2024-11-08 18:52:24,629 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 432 [2024-11-08 18:52:24,631 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 432 [2024-11-08 18:52:24,631 INFO L73 IsDeterministic]: Start isDeterministic. Operand 432 states and 563 transitions. [2024-11-08 18:52:24,634 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-08 18:52:24,634 INFO L218 hiAutomatonCegarLoop]: Abstraction has 432 states and 563 transitions. [2024-11-08 18:52:24,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states and 563 transitions. [2024-11-08 18:52:24,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 432. [2024-11-08 18:52:24,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 432 states have (on average 1.3032407407407407) internal successors, (563), 431 states have internal predecessors, (563), 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) [2024-11-08 18:52:24,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 563 transitions. [2024-11-08 18:52:24,671 INFO L240 hiAutomatonCegarLoop]: Abstraction has 432 states and 563 transitions. [2024-11-08 18:52:24,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:52:24,677 INFO L425 stractBuchiCegarLoop]: Abstraction has 432 states and 563 transitions. [2024-11-08 18:52:24,678 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-08 18:52:24,678 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 432 states and 563 transitions. [2024-11-08 18:52:24,687 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 307 [2024-11-08 18:52:24,687 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-08 18:52:24,687 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-08 18:52:24,692 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:52:24,692 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:52:24,693 INFO L745 eck$LassoCheckResult]: Stem: 1314#$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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 1315#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~9#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 1307#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1308#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~12#1;havoc valid_product_~retValue_acc~12#1;valid_product_~retValue_acc~12#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~12#1; 1430#valid_product_returnLabel#1 main_#t~ret53#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~12#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 1335#L988 assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 1336#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet48#1, test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~3#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1402#L800-2 [2024-11-08 18:52:24,693 INFO L747 eck$LassoCheckResult]: Loop: 1402#L800-2 assume !false; 1432#L801 assume test_~splverifierCounter~0#1 < 4; 1583#L802 havoc test_#t~nondet48#1;test_~tmp~8#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1; 1581#L810 assume !(0 != test_~tmp~8#1); 1579#L810-2 havoc test_#t~nondet49#1;test_~tmp___0~3#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 1577#L820 assume !(0 != test_~tmp___0~3#1); 1575#L820-2 havoc test_#t~nondet50#1;test_~tmp___2~0#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 1457#L830 assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet51#1;test_~tmp___1~1#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 1458#L838 assume !(0 != test_~tmp___1~1#1); 1371#L838-2 assume { :begin_inline_timeShift } true; 1456#L576 assume !(0 != ~pumpRunning~0); 1349#L576-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 1350#L634 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret35#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4#1; 1440#L608-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret46#1, isHighWaterLevel_~retValue_acc~9#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~9#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~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; 1441#L177-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 1567#isHighWaterSensorDry_returnLabel#2 isHighWaterLevel_#t~ret46#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret46#1;havoc isHighWaterLevel_#t~ret46#1; 1566#L736-3 assume !(0 != isHighWaterLevel_~tmp~6#1);isHighWaterLevel_~tmp___0~1#1 := 1; 1466#L736-5 isHighWaterLevel_~retValue_acc~9#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~9#1; 1467#isHighWaterLevel_returnLabel#2 processEnvironment__wrappee__highWaterSensor_#t~ret35#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret46#1, isHighWaterLevel_~retValue_acc~9#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~4#1 := processEnvironment__wrappee__highWaterSensor_#t~ret35#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret35#1; 1555#L612-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1556#processEnvironment__wrappee__base_returnLabel#3 assume { :end_inline_processEnvironment__wrappee__base } true; 1589#L608-3 havoc processEnvironment__wrappee__highWaterSensor_#t~ret35#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1588#L634-1 havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~5#1;assume { :end_inline_processEnvironment } true; 1587#L583-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 1486#isMethaneLevelCritical_returnLabel#1 __utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1; 1487#L63 assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1; 1491#L69-1 havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1492#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1402#L800-2 [2024-11-08 18:52:24,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:52:24,694 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2024-11-08 18:52:24,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:52:24,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906259525] [2024-11-08 18:52:24,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:52:24,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:52:24,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:52:24,747 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 18:52:24,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:52:24,768 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 18:52:24,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:52:24,769 INFO L85 PathProgramCache]: Analyzing trace with hash 991675469, now seen corresponding path program 1 times [2024-11-08 18:52:24,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:52:24,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496327687] [2024-11-08 18:52:24,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:52:24,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:52:24,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:24,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:52:24,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:52:24,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496327687] [2024-11-08 18:52:24,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496327687] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:52:24,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:52:24,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:52:24,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946088121] [2024-11-08 18:52:24,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:52:24,901 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-08 18:52:24,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:52:24,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:52:24,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:52:24,903 INFO L87 Difference]: Start difference. First operand 432 states and 563 transitions. cyclomatic complexity: 134 Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:52:25,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:52:25,087 INFO L93 Difference]: Finished difference Result 456 states and 587 transitions. [2024-11-08 18:52:25,087 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 456 states and 587 transitions. [2024-11-08 18:52:25,096 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 323 [2024-11-08 18:52:25,100 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 456 states to 456 states and 587 transitions. [2024-11-08 18:52:25,102 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 456 [2024-11-08 18:52:25,103 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 456 [2024-11-08 18:52:25,104 INFO L73 IsDeterministic]: Start isDeterministic. Operand 456 states and 587 transitions. [2024-11-08 18:52:25,109 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-08 18:52:25,109 INFO L218 hiAutomatonCegarLoop]: Abstraction has 456 states and 587 transitions. [2024-11-08 18:52:25,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states and 587 transitions. [2024-11-08 18:52:25,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 456. [2024-11-08 18:52:25,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 456 states have (on average 1.287280701754386) internal successors, (587), 455 states have internal predecessors, (587), 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) [2024-11-08 18:52:25,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 587 transitions. [2024-11-08 18:52:25,140 INFO L240 hiAutomatonCegarLoop]: Abstraction has 456 states and 587 transitions. [2024-11-08 18:52:25,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:52:25,142 INFO L425 stractBuchiCegarLoop]: Abstraction has 456 states and 587 transitions. [2024-11-08 18:52:25,142 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-08 18:52:25,142 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 456 states and 587 transitions. [2024-11-08 18:52:25,147 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 323 [2024-11-08 18:52:25,147 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-08 18:52:25,148 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-08 18:52:25,149 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:52:25,149 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:52:25,150 INFO L745 eck$LassoCheckResult]: Stem: 2211#$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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 2212#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~9#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 2204#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2205#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~12#1;havoc valid_product_~retValue_acc~12#1;valid_product_~retValue_acc~12#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~12#1; 2321#valid_product_returnLabel#1 main_#t~ret53#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~12#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 2232#L988 assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 2233#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet48#1, test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~3#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2285#L800-2 [2024-11-08 18:52:25,150 INFO L747 eck$LassoCheckResult]: Loop: 2285#L800-2 assume !false; 2393#L801 assume test_~splverifierCounter~0#1 < 4; 2262#L802 havoc test_#t~nondet48#1;test_~tmp~8#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1; 2263#L810 assume !(0 != test_~tmp~8#1); 2200#L810-2 havoc test_#t~nondet49#1;test_~tmp___0~3#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 2201#L820 assume !(0 != test_~tmp___0~3#1); 2332#L820-2 havoc test_#t~nondet50#1;test_~tmp___2~0#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 2333#L830 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 2272#startSystem_returnLabel#1 assume { :end_inline_startSystem } true; 2214#L838-2 assume { :begin_inline_timeShift } true; 2316#L576 assume !(0 != ~pumpRunning~0); 2317#L576-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 2327#L634 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret35#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4#1; 2328#L608-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret46#1, isHighWaterLevel_~retValue_acc~9#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~9#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~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; 2278#L177-1 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~2#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 2279#isHighWaterSensorDry_returnLabel#2 isHighWaterLevel_#t~ret46#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret46#1;havoc isHighWaterLevel_#t~ret46#1; 2391#L736-3 assume !(0 != isHighWaterLevel_~tmp~6#1);isHighWaterLevel_~tmp___0~1#1 := 1; 2357#L736-5 isHighWaterLevel_~retValue_acc~9#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~9#1; 2355#isHighWaterLevel_returnLabel#2 processEnvironment__wrappee__highWaterSensor_#t~ret35#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret46#1, isHighWaterLevel_~retValue_acc~9#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~4#1 := processEnvironment__wrappee__highWaterSensor_#t~ret35#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret35#1; 2356#L612-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2374#processEnvironment__wrappee__base_returnLabel#3 assume { :end_inline_processEnvironment__wrappee__base } true; 2499#L608-3 havoc processEnvironment__wrappee__highWaterSensor_#t~ret35#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 2498#L634-1 havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~5#1;assume { :end_inline_processEnvironment } true; 2497#L583-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 2496#isMethaneLevelCritical_returnLabel#1 __utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1; 2402#L63 assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1; 2403#L69-1 havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 2284#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 2285#L800-2 [2024-11-08 18:52:25,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:52:25,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2024-11-08 18:52:25,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:52:25,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140682567] [2024-11-08 18:52:25,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:52:25,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:52:25,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:52:25,172 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 18:52:25,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:52:25,188 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 18:52:25,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:52:25,189 INFO L85 PathProgramCache]: Analyzing trace with hash -2095943975, now seen corresponding path program 1 times [2024-11-08 18:52:25,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:52:25,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631633080] [2024-11-08 18:52:25,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:52:25,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:52:25,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:25,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:52:25,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:52:25,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631633080] [2024-11-08 18:52:25,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631633080] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:52:25,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:52:25,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:52:25,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023225277] [2024-11-08 18:52:25,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:52:25,348 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-08 18:52:25,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:52:25,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:52:25,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:52:25,351 INFO L87 Difference]: Start difference. First operand 456 states and 587 transitions. cyclomatic complexity: 134 Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:52:25,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:52:25,583 INFO L93 Difference]: Finished difference Result 492 states and 623 transitions. [2024-11-08 18:52:25,583 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 492 states and 623 transitions. [2024-11-08 18:52:25,590 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 347 [2024-11-08 18:52:25,594 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 492 states to 492 states and 623 transitions. [2024-11-08 18:52:25,594 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 492 [2024-11-08 18:52:25,595 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 492 [2024-11-08 18:52:25,595 INFO L73 IsDeterministic]: Start isDeterministic. Operand 492 states and 623 transitions. [2024-11-08 18:52:25,596 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-08 18:52:25,597 INFO L218 hiAutomatonCegarLoop]: Abstraction has 492 states and 623 transitions. [2024-11-08 18:52:25,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states and 623 transitions. [2024-11-08 18:52:25,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 492. [2024-11-08 18:52:25,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 492 states, 492 states have (on average 1.266260162601626) internal successors, (623), 491 states have internal predecessors, (623), 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) [2024-11-08 18:52:25,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 623 transitions. [2024-11-08 18:52:25,613 INFO L240 hiAutomatonCegarLoop]: Abstraction has 492 states and 623 transitions. [2024-11-08 18:52:25,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:52:25,614 INFO L425 stractBuchiCegarLoop]: Abstraction has 492 states and 623 transitions. [2024-11-08 18:52:25,615 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-08 18:52:25,615 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 492 states and 623 transitions. [2024-11-08 18:52:25,619 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 347 [2024-11-08 18:52:25,619 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-08 18:52:25,619 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-08 18:52:25,620 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:52:25,620 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:52:25,621 INFO L745 eck$LassoCheckResult]: Stem: 3166#$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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 3167#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~9#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 3158#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 3159#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~12#1;havoc valid_product_~retValue_acc~12#1;valid_product_~retValue_acc~12#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~12#1; 3279#valid_product_returnLabel#1 main_#t~ret53#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~12#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 3188#L988 assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 3189#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet48#1, test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~3#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 3244#L800-2 [2024-11-08 18:52:25,621 INFO L747 eck$LassoCheckResult]: Loop: 3244#L800-2 assume !false; 3313#L801 assume test_~splverifierCounter~0#1 < 4; 3314#L802 havoc test_#t~nondet48#1;test_~tmp~8#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1; 3118#L810 assume !(0 != test_~tmp~8#1); 3120#L810-2 havoc test_#t~nondet49#1;test_~tmp___0~3#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 3160#L820 assume !(0 != test_~tmp___0~3#1); 3161#L820-2 havoc test_#t~nondet50#1;test_~tmp___2~0#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 3291#L830 assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet51#1;test_~tmp___1~1#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 3168#L838 assume !(0 != test_~tmp___1~1#1); 3169#L838-2 assume { :begin_inline_timeShift } true; 3301#L576 assume !(0 != ~pumpRunning~0); 3202#L576-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 3203#L634 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret35#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4#1; 3287#L608-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret46#1, isHighWaterLevel_~retValue_acc~9#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~9#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~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; 3288#L177-1 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~2#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 3456#isHighWaterSensorDry_returnLabel#2 isHighWaterLevel_#t~ret46#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret46#1;havoc isHighWaterLevel_#t~ret46#1; 3367#L736-3 assume 0 != isHighWaterLevel_~tmp~6#1;isHighWaterLevel_~tmp___0~1#1 := 0; 3127#L736-5 isHighWaterLevel_~retValue_acc~9#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~9#1; 3336#isHighWaterLevel_returnLabel#2 processEnvironment__wrappee__highWaterSensor_#t~ret35#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret46#1, isHighWaterLevel_~retValue_acc~9#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~4#1 := processEnvironment__wrappee__highWaterSensor_#t~ret35#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret35#1; 3337#L612-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 3180#processEnvironment__wrappee__base_returnLabel#3 assume { :end_inline_processEnvironment__wrappee__base } true; 3181#L608-3 havoc processEnvironment__wrappee__highWaterSensor_#t~ret35#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 3434#L634-1 havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~5#1;assume { :end_inline_processEnvironment } true; 3432#L583-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 3430#isMethaneLevelCritical_returnLabel#1 __utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1; 3410#L63 assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1; 3408#L69-1 havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 3243#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 3244#L800-2 [2024-11-08 18:52:25,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:52:25,622 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 5 times [2024-11-08 18:52:25,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:52:25,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933891423] [2024-11-08 18:52:25,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:52:25,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:52:25,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:52:25,640 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 18:52:25,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:52:25,661 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 18:52:25,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:52:25,662 INFO L85 PathProgramCache]: Analyzing trace with hash -277607219, now seen corresponding path program 1 times [2024-11-08 18:52:25,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:52:25,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978355339] [2024-11-08 18:52:25,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:52:25,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:52:25,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:25,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:52:25,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:52:25,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978355339] [2024-11-08 18:52:25,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978355339] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:52:25,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:52:25,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:52:25,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994131636] [2024-11-08 18:52:25,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:52:25,763 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-08 18:52:25,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:52:25,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:52:25,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:52:25,764 INFO L87 Difference]: Start difference. First operand 492 states and 623 transitions. cyclomatic complexity: 134 Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:52:25,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:52:25,902 INFO L93 Difference]: Finished difference Result 492 states and 611 transitions. [2024-11-08 18:52:25,903 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 492 states and 611 transitions. [2024-11-08 18:52:25,909 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 347 [2024-11-08 18:52:25,912 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 492 states to 492 states and 611 transitions. [2024-11-08 18:52:25,913 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 492 [2024-11-08 18:52:25,913 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 492 [2024-11-08 18:52:25,914 INFO L73 IsDeterministic]: Start isDeterministic. Operand 492 states and 611 transitions. [2024-11-08 18:52:25,915 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-08 18:52:25,915 INFO L218 hiAutomatonCegarLoop]: Abstraction has 492 states and 611 transitions. [2024-11-08 18:52:25,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states and 611 transitions. [2024-11-08 18:52:25,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 492. [2024-11-08 18:52:25,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 492 states, 492 states have (on average 1.241869918699187) internal successors, (611), 491 states have internal predecessors, (611), 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) [2024-11-08 18:52:25,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 611 transitions. [2024-11-08 18:52:25,929 INFO L240 hiAutomatonCegarLoop]: Abstraction has 492 states and 611 transitions. [2024-11-08 18:52:25,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:52:25,930 INFO L425 stractBuchiCegarLoop]: Abstraction has 492 states and 611 transitions. [2024-11-08 18:52:25,931 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-11-08 18:52:25,931 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 492 states and 611 transitions. [2024-11-08 18:52:25,936 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 347 [2024-11-08 18:52:25,936 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-08 18:52:25,937 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-08 18:52:25,937 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:52:25,938 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:52:25,938 INFO L745 eck$LassoCheckResult]: Stem: 4154#$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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 4155#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~9#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 4148#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 4149#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~12#1;havoc valid_product_~retValue_acc~12#1;valid_product_~retValue_acc~12#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~12#1; 4264#valid_product_returnLabel#1 main_#t~ret53#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~12#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 4174#L988 assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 4175#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet48#1, test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~3#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 4239#L800-2 [2024-11-08 18:52:25,938 INFO L747 eck$LassoCheckResult]: Loop: 4239#L800-2 assume !false; 4293#L801 assume test_~splverifierCounter~0#1 < 4; 4202#L802 havoc test_#t~nondet48#1;test_~tmp~8#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1; 4203#L810 assume !(0 != test_~tmp~8#1); 4409#L810-2 havoc test_#t~nondet49#1;test_~tmp___0~3#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 4407#L820 assume !(0 != test_~tmp___0~3#1); 4405#L820-2 havoc test_#t~nondet50#1;test_~tmp___2~0#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 4404#L830 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 4208#startSystem_returnLabel#1 assume { :end_inline_startSystem } true; 4209#L838-2 assume { :begin_inline_timeShift } true; 4402#L576 assume !(0 != ~pumpRunning~0); 4386#L576-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 4401#L634 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret35#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4#1; 4376#L608-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret46#1, isHighWaterLevel_~retValue_acc~9#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~9#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~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; 4219#L177-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 4220#isHighWaterSensorDry_returnLabel#2 isHighWaterLevel_#t~ret46#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret46#1;havoc isHighWaterLevel_#t~ret46#1; 4325#L736-3 assume 0 != isHighWaterLevel_~tmp~6#1;isHighWaterLevel_~tmp___0~1#1 := 0; 4326#L736-5 isHighWaterLevel_~retValue_acc~9#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~9#1; 4315#isHighWaterLevel_returnLabel#2 processEnvironment__wrappee__highWaterSensor_#t~ret35#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret46#1, isHighWaterLevel_~retValue_acc~9#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~4#1 := processEnvironment__wrappee__highWaterSensor_#t~ret35#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret35#1; 4316#L612-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 4167#processEnvironment__wrappee__base_returnLabel#3 assume { :end_inline_processEnvironment__wrappee__base } true; 4159#L608-3 havoc processEnvironment__wrappee__highWaterSensor_#t~ret35#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 4160#L634-1 havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~5#1;assume { :end_inline_processEnvironment } true; 4422#L583-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 4421#isMethaneLevelCritical_returnLabel#1 __utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1; 4416#L63 assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1; 4301#L69-1 havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 4302#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 4239#L800-2 [2024-11-08 18:52:25,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:52:25,942 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 6 times [2024-11-08 18:52:25,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:52:25,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843154909] [2024-11-08 18:52:25,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:52:25,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:52:25,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:52:25,963 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 18:52:25,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:52:25,989 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 18:52:25,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:52:25,990 INFO L85 PathProgramCache]: Analyzing trace with hash -1342992163, now seen corresponding path program 1 times [2024-11-08 18:52:25,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:52:25,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262095419] [2024-11-08 18:52:25,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:52:25,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:52:26,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:52:26,008 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 18:52:26,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:52:26,028 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 18:52:26,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:52:26,029 INFO L85 PathProgramCache]: Analyzing trace with hash 1700993185, now seen corresponding path program 1 times [2024-11-08 18:52:26,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:52:26,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027286279] [2024-11-08 18:52:26,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:52:26,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:52:26,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:26,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:52:26,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:52:26,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027286279] [2024-11-08 18:52:26,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027286279] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:52:26,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:52:26,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:52:26,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889311935] [2024-11-08 18:52:26,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:52:26,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:52:26,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:52:26,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:52:26,525 INFO L87 Difference]: Start difference. First operand 492 states and 611 transitions. cyclomatic complexity: 122 Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 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) [2024-11-08 18:52:26,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:52:26,736 INFO L93 Difference]: Finished difference Result 977 states and 1199 transitions. [2024-11-08 18:52:26,736 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 977 states and 1199 transitions. [2024-11-08 18:52:26,746 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 694 [2024-11-08 18:52:26,753 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 977 states to 977 states and 1199 transitions. [2024-11-08 18:52:26,753 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 977 [2024-11-08 18:52:26,755 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 977 [2024-11-08 18:52:26,755 INFO L73 IsDeterministic]: Start isDeterministic. Operand 977 states and 1199 transitions. [2024-11-08 18:52:26,757 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-08 18:52:26,757 INFO L218 hiAutomatonCegarLoop]: Abstraction has 977 states and 1199 transitions. [2024-11-08 18:52:26,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 977 states and 1199 transitions. [2024-11-08 18:52:26,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 977 to 977. [2024-11-08 18:52:26,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 977 states, 977 states have (on average 1.2272262026612077) internal successors, (1199), 976 states have internal predecessors, (1199), 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) [2024-11-08 18:52:26,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 977 states to 977 states and 1199 transitions. [2024-11-08 18:52:26,787 INFO L240 hiAutomatonCegarLoop]: Abstraction has 977 states and 1199 transitions. [2024-11-08 18:52:26,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:52:26,791 INFO L425 stractBuchiCegarLoop]: Abstraction has 977 states and 1199 transitions. [2024-11-08 18:52:26,791 INFO L332 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2024-11-08 18:52:26,792 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 977 states and 1199 transitions. [2024-11-08 18:52:26,799 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 694 [2024-11-08 18:52:26,800 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-08 18:52:26,800 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-08 18:52:26,801 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:52:26,801 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:52:26,802 INFO L745 eck$LassoCheckResult]: Stem: 5636#$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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 5637#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~9#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 5629#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 5630#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~12#1;havoc valid_product_~retValue_acc~12#1;valid_product_~retValue_acc~12#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~12#1; 5754#valid_product_returnLabel#1 main_#t~ret53#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~12#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 5658#L988 assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 5659#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet48#1, test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~3#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 5724#L800-2 [2024-11-08 18:52:26,802 INFO L747 eck$LassoCheckResult]: Loop: 5724#L800-2 assume !false; 6077#L801 assume test_~splverifierCounter~0#1 < 4; 5875#L802 havoc test_#t~nondet48#1;test_~tmp~8#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1; 5876#L810 assume !(0 != test_~tmp~8#1); 6015#L810-2 havoc test_#t~nondet49#1;test_~tmp___0~3#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 6013#L820 assume !(0 != test_~tmp___0~3#1); 6011#L820-2 havoc test_#t~nondet50#1;test_~tmp___2~0#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 6010#L830 assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet51#1;test_~tmp___1~1#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 6008#L838 assume !(0 != test_~tmp___1~1#1); 5694#L838-2 assume { :begin_inline_timeShift } true; 5745#L576 assume !(0 != ~pumpRunning~0); 5746#L576-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 5760#L634 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret35#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4#1; 5761#L608-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret46#1, isHighWaterLevel_~retValue_acc~9#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~9#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~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; 5705#L177-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 5706#isHighWaterSensorDry_returnLabel#2 isHighWaterLevel_#t~ret46#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret46#1;havoc isHighWaterLevel_#t~ret46#1; 5813#L736-3 assume 0 != isHighWaterLevel_~tmp~6#1;isHighWaterLevel_~tmp___0~1#1 := 0; 5814#L736-5 isHighWaterLevel_~retValue_acc~9#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~9#1; 5962#isHighWaterLevel_returnLabel#2 processEnvironment__wrappee__highWaterSensor_#t~ret35#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret46#1, isHighWaterLevel_~retValue_acc~9#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~4#1 := processEnvironment__wrappee__highWaterSensor_#t~ret35#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret35#1; 5955#L612-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 5956#processEnvironment__wrappee__base_returnLabel#3 assume { :end_inline_processEnvironment__wrappee__base } true; 6092#L608-3 havoc processEnvironment__wrappee__highWaterSensor_#t~ret35#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 6091#L634-1 havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~5#1;assume { :end_inline_processEnvironment } true; 6090#L583-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 6089#isMethaneLevelCritical_returnLabel#1 __utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1; 6088#L63 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~0#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 6087#getWaterLevel_returnLabel#1 __utac_acc__Specification3_spec__1_#t~ret5#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~0#1 := __utac_acc__Specification3_spec__1_#t~ret5#1;havoc __utac_acc__Specification3_spec__1_#t~ret5#1; 6084#L69 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0#1); 6083#L69-1 havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 6081#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 5724#L800-2 [2024-11-08 18:52:26,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:52:26,803 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 7 times [2024-11-08 18:52:26,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:52:26,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810187150] [2024-11-08 18:52:26,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:52:26,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:52:26,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:52:26,818 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 18:52:26,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:52:26,832 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 18:52:26,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:52:26,833 INFO L85 PathProgramCache]: Analyzing trace with hash 529697604, now seen corresponding path program 1 times [2024-11-08 18:52:26,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:52:26,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969236453] [2024-11-08 18:52:26,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:52:26,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:52:26,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:52:26,852 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 18:52:26,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:52:26,875 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 18:52:26,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:52:26,876 INFO L85 PathProgramCache]: Analyzing trace with hash 926888456, now seen corresponding path program 1 times [2024-11-08 18:52:26,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:52:26,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081542015] [2024-11-08 18:52:26,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:52:26,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:52:26,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:52:26,892 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 18:52:26,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:52:26,908 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 18:52:28,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:52:28,339 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 18:52:28,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:52:28,438 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 08.11 06:52:28 BoogieIcfgContainer [2024-11-08 18:52:28,438 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-08 18:52:28,439 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 18:52:28,439 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 18:52:28,439 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 18:52:28,440 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:52:23" (3/4) ... [2024-11-08 18:52:28,444 INFO L139 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-08 18:52:28,543 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53640487-2768-4d6c-ae64-2df266710161/bin/uautomizer-verify-jihMAELWvX/witness.graphml [2024-11-08 18:52:28,543 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 18:52:28,544 INFO L158 Benchmark]: Toolchain (without parser) took 6950.84ms. Allocated memory was 153.1MB in the beginning and 184.5MB in the end (delta: 31.5MB). Free memory was 114.2MB in the beginning and 100.8MB in the end (delta: 13.5MB). Peak memory consumption was 46.5MB. Max. memory is 16.1GB. [2024-11-08 18:52:28,545 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 117.4MB. Free memory is still 66.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 18:52:28,545 INFO L158 Benchmark]: CACSL2BoogieTranslator took 797.97ms. Allocated memory is still 153.1MB. Free memory was 113.7MB in the beginning and 92.2MB in the end (delta: 21.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-08 18:52:28,549 INFO L158 Benchmark]: Boogie Procedure Inliner took 101.62ms. Allocated memory is still 153.1MB. Free memory was 92.2MB in the beginning and 88.6MB in the end (delta: 3.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 18:52:28,550 INFO L158 Benchmark]: Boogie Preprocessor took 149.49ms. Allocated memory is still 153.1MB. Free memory was 88.6MB in the beginning and 85.4MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 18:52:28,551 INFO L158 Benchmark]: RCFGBuilder took 968.79ms. Allocated memory is still 153.1MB. Free memory was 85.4MB in the beginning and 111.9MB in the end (delta: -26.5MB). Peak memory consumption was 27.0MB. Max. memory is 16.1GB. [2024-11-08 18:52:28,551 INFO L158 Benchmark]: BuchiAutomizer took 4821.33ms. Allocated memory was 153.1MB in the beginning and 184.5MB in the end (delta: 31.5MB). Free memory was 111.9MB in the beginning and 103.9MB in the end (delta: 8.0MB). Peak memory consumption was 38.4MB. Max. memory is 16.1GB. [2024-11-08 18:52:28,552 INFO L158 Benchmark]: Witness Printer took 104.48ms. Allocated memory is still 184.5MB. Free memory was 103.9MB in the beginning and 100.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 18:52:28,554 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 117.4MB. Free memory is still 66.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 797.97ms. Allocated memory is still 153.1MB. Free memory was 113.7MB in the beginning and 92.2MB in the end (delta: 21.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 101.62ms. Allocated memory is still 153.1MB. Free memory was 92.2MB in the beginning and 88.6MB in the end (delta: 3.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 149.49ms. Allocated memory is still 153.1MB. Free memory was 88.6MB in the beginning and 85.4MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 968.79ms. Allocated memory is still 153.1MB. Free memory was 85.4MB in the beginning and 111.9MB in the end (delta: -26.5MB). Peak memory consumption was 27.0MB. Max. memory is 16.1GB. * BuchiAutomizer took 4821.33ms. Allocated memory was 153.1MB in the beginning and 184.5MB in the end (delta: 31.5MB). Free memory was 111.9MB in the beginning and 103.9MB in the end (delta: 8.0MB). Peak memory consumption was 38.4MB. Max. memory is 16.1GB. * Witness Printer took 104.48ms. Allocated memory is still 184.5MB. Free memory was 103.9MB in the beginning and 100.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [49] - GenericResultAtLocation [Line: 87]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [87] - GenericResultAtLocation [Line: 196]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [196] - GenericResultAtLocation [Line: 562]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [562] - GenericResultAtLocation [Line: 788]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [788] - GenericResultAtLocation [Line: 858]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [858] - GenericResultAtLocation [Line: 867]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [867] - GenericResultAtLocation [Line: 905]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [905] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (6 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.6 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 977 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.6s and 7 iterations. TraceHistogramMax:1. Analysis of lassos took 3.1s. Construction of modules took 0.6s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 0. Minimization of det autom 6. Minimization of nondet autom 0. Automata minimization 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 3 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, 539 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 539 mSDsluCounter, 3482 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2201 mSDsCounter, 84 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 356 IncrementalHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 84 mSolverCounterUnsat, 1281 mSDtfsCounter, 356 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI5 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: 800]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L94] int waterLevel = 1; [L95] int methaneLevelCritical = 0; [L366] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L569] int pumpRunning = 0; [L570] int systemActive = 1; [L906] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L979] int retValue_acc ; [L980] int tmp ; [L984] FCALL select_helpers() [L985] FCALL select_features() [L986] CALL, EXPR valid_product() [L897] int retValue_acc ; [L900] retValue_acc = 1 [L901] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L986] RET, EXPR valid_product() [L986] tmp = valid_product() [L988] COND TRUE \read(tmp) [L990] FCALL setup() [L991] CALL runTest() [L973] CALL test() [L791] int splverifierCounter ; [L792] int tmp ; [L793] int tmp___0 ; [L794] int tmp___1 ; [L795] int tmp___2 ; [L798] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L800] COND TRUE 1 [L802] COND TRUE splverifierCounter < 4 [L808] tmp = __VERIFIER_nondet_int() [L810] COND FALSE !(\read(tmp)) [L818] tmp___0 = __VERIFIER_nondet_int() [L820] COND FALSE !(\read(tmp___0)) [L828] tmp___2 = __VERIFIER_nondet_int() [L830] COND FALSE !(\read(tmp___2)) [L836] tmp___1 = __VERIFIER_nondet_int() [L838] COND FALSE !(\read(tmp___1)) [L847] CALL timeShift() [L576] COND FALSE !(\read(pumpRunning)) [L583] COND TRUE \read(systemActive) [L585] CALL processEnvironment() [L631] int tmp ; [L634] COND FALSE !(\read(pumpRunning)) [L649] CALL processEnvironment__wrappee__highWaterSensor() [L605] int tmp ; [L608] COND TRUE ! pumpRunning [L610] CALL, EXPR isHighWaterLevel() [L728] int retValue_acc ; [L729] int tmp ; [L730] int tmp___0 ; [L734] CALL, EXPR isHighWaterSensorDry() [L174] int retValue_acc ; [L177] COND TRUE waterLevel < 2 [L178] retValue_acc = 1 [L179] return (retValue_acc); [L734] RET, EXPR isHighWaterSensorDry() [L734] tmp = isHighWaterSensorDry() [L736] COND TRUE \read(tmp) [L737] tmp___0 = 0 [L741] retValue_acc = tmp___0 [L742] return (retValue_acc); [L610] RET, EXPR isHighWaterLevel() [L610] tmp = isHighWaterLevel() [L612] COND FALSE !(\read(tmp)) [L618] FCALL processEnvironment__wrappee__base() [L649] RET processEnvironment__wrappee__highWaterSensor() [L585] RET processEnvironment() [L591] CALL __utac_acc__Specification3_spec__1() [L55] int tmp ; [L56] int tmp___0 ; [L57] int tmp___1 ; [L61] CALL, EXPR isMethaneLevelCritical() [L133] int retValue_acc ; [L136] retValue_acc = methaneLevelCritical [L137] return (retValue_acc); [L61] RET, EXPR isMethaneLevelCritical() [L61] tmp = isMethaneLevelCritical() [L63] COND FALSE !(\read(tmp)) [L67] CALL, EXPR getWaterLevel() [L165] int retValue_acc ; [L168] retValue_acc = waterLevel [L169] return (retValue_acc); [L67] RET, EXPR getWaterLevel() [L67] tmp___0 = getWaterLevel() [L69] COND FALSE !(tmp___0 == 2) [L591] RET __utac_acc__Specification3_spec__1() [L847] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 800]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L94] int waterLevel = 1; [L95] int methaneLevelCritical = 0; [L366] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L569] int pumpRunning = 0; [L570] int systemActive = 1; [L906] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L979] int retValue_acc ; [L980] int tmp ; [L984] FCALL select_helpers() [L985] FCALL select_features() [L986] CALL, EXPR valid_product() [L897] int retValue_acc ; [L900] retValue_acc = 1 [L901] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L986] RET, EXPR valid_product() [L986] tmp = valid_product() [L988] COND TRUE \read(tmp) [L990] FCALL setup() [L991] CALL runTest() [L973] CALL test() [L791] int splverifierCounter ; [L792] int tmp ; [L793] int tmp___0 ; [L794] int tmp___1 ; [L795] int tmp___2 ; [L798] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L800] COND TRUE 1 [L802] COND TRUE splverifierCounter < 4 [L808] tmp = __VERIFIER_nondet_int() [L810] COND FALSE !(\read(tmp)) [L818] tmp___0 = __VERIFIER_nondet_int() [L820] COND FALSE !(\read(tmp___0)) [L828] tmp___2 = __VERIFIER_nondet_int() [L830] COND FALSE !(\read(tmp___2)) [L836] tmp___1 = __VERIFIER_nondet_int() [L838] COND FALSE !(\read(tmp___1)) [L847] CALL timeShift() [L576] COND FALSE !(\read(pumpRunning)) [L583] COND TRUE \read(systemActive) [L585] CALL processEnvironment() [L631] int tmp ; [L634] COND FALSE !(\read(pumpRunning)) [L649] CALL processEnvironment__wrappee__highWaterSensor() [L605] int tmp ; [L608] COND TRUE ! pumpRunning [L610] CALL, EXPR isHighWaterLevel() [L728] int retValue_acc ; [L729] int tmp ; [L730] int tmp___0 ; [L734] CALL, EXPR isHighWaterSensorDry() [L174] int retValue_acc ; [L177] COND TRUE waterLevel < 2 [L178] retValue_acc = 1 [L179] return (retValue_acc); [L734] RET, EXPR isHighWaterSensorDry() [L734] tmp = isHighWaterSensorDry() [L736] COND TRUE \read(tmp) [L737] tmp___0 = 0 [L741] retValue_acc = tmp___0 [L742] return (retValue_acc); [L610] RET, EXPR isHighWaterLevel() [L610] tmp = isHighWaterLevel() [L612] COND FALSE !(\read(tmp)) [L618] FCALL processEnvironment__wrappee__base() [L649] RET processEnvironment__wrappee__highWaterSensor() [L585] RET processEnvironment() [L591] CALL __utac_acc__Specification3_spec__1() [L55] int tmp ; [L56] int tmp___0 ; [L57] int tmp___1 ; [L61] CALL, EXPR isMethaneLevelCritical() [L133] int retValue_acc ; [L136] retValue_acc = methaneLevelCritical [L137] return (retValue_acc); [L61] RET, EXPR isMethaneLevelCritical() [L61] tmp = isMethaneLevelCritical() [L63] COND FALSE !(\read(tmp)) [L67] CALL, EXPR getWaterLevel() [L165] int retValue_acc ; [L168] retValue_acc = waterLevel [L169] return (retValue_acc); [L67] RET, EXPR getWaterLevel() [L67] tmp___0 = getWaterLevel() [L69] COND FALSE !(tmp___0 == 2) [L591] RET __utac_acc__Specification3_spec__1() [L847] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-08 18:52:28,604 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53640487-2768-4d6c-ae64-2df266710161/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)