./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product60.cil.c --full-output --architecture 32bit


--------------------------------------------------------------------------------


Checking for termination
Using default analysis
Version 9bd2c7ff
Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3cea6b1-a231-4cb3-877a-69f737578234/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3cea6b1-a231-4cb3-877a-69f737578234/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3cea6b1-a231-4cb3-877a-69f737578234/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3cea6b1-a231-4cb3-877a-69f737578234/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product60.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3cea6b1-a231-4cb3-877a-69f737578234/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3cea6b1-a231-4cb3-877a-69f737578234/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) )

 --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 63a498e40ee7fb7960293994084186ed238562f61fafb5e109bd8b394667fc1f
--- Real Ultimate output ---
This is Ultimate 0.2.3-dev-9bd2c7f
[2023-11-19 08:03:08,857 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-11-19 08:03:08,925 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3cea6b1-a231-4cb3-877a-69f737578234/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Termination-32bit-Automizer_Default.epf
[2023-11-19 08:03:08,931 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-11-19 08:03:08,931 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-19 08:03:08,957 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-19 08:03:08,958 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-19 08:03:08,959 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-19 08:03:08,960 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-19 08:03:08,961 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-11-19 08:03:08,961 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-11-19 08:03:08,962 INFO  L151        SettingsManager]: Preferences of BuchiAutomizer differ from their defaults:
[2023-11-19 08:03:08,963 INFO  L153        SettingsManager]:  * NCSB implementation=INTSET_LAZY3
[2023-11-19 08:03:08,963 INFO  L153        SettingsManager]:  * Use old map elimination=false
[2023-11-19 08:03:08,964 INFO  L153        SettingsManager]:  * Use external solver (rank synthesis)=false
[2023-11-19 08:03:08,965 INFO  L153        SettingsManager]:  * Use only trivial implications for array writes=true
[2023-11-19 08:03:08,966 INFO  L153        SettingsManager]:  * Rank analysis=LINEAR_WITH_GUESSES
[2023-11-19 08:03:08,966 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-19 08:03:08,967 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=ASSUME
[2023-11-19 08:03:08,968 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-11-19 08:03:08,968 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-11-19 08:03:08,969 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-11-19 08:03:08,970 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-11-19 08:03:08,970 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=ASSUME
[2023-11-19 08:03:08,971 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=ASSUME
[2023-11-19 08:03:08,972 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=ASSUME
[2023-11-19 08:03:08,972 INFO  L153        SettingsManager]:  * Check unreachability of reach_error function=false
[2023-11-19 08:03:08,973 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-11-19 08:03:08,974 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-11-19 08:03:08,974 INFO  L153        SettingsManager]:  * Assume nondeterminstic values are in range=false
[2023-11-19 08:03:08,975 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-11-19 08:03:08,976 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-19 08:03:08,976 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-11-19 08:03:08,977 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-19 08:03:08,978 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-11-19 08:03:08,978 INFO  L151        SettingsManager]: Preferences of IcfgTransformer differ from their defaults:
[2023-11-19 08:03:08,979 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_f3cea6b1-a231-4cb3-877a-69f737578234/bin/uautomizer-verify-uCwYo4JHxu/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3cea6b1-a231-4cb3-877a-69f737578234/bin/uautomizer-verify-uCwYo4JHxu
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) )


Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 63a498e40ee7fb7960293994084186ed238562f61fafb5e109bd8b394667fc1f
[2023-11-19 08:03:09,312 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-19 08:03:09,348 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-19 08:03:09,351 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-19 08:03:09,353 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-11-19 08:03:09,354 INFO  L274        PluginConnector]: CDTParser initialized
[2023-11-19 08:03:09,356 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3cea6b1-a231-4cb3-877a-69f737578234/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/product-lines/minepump_spec4_product60.cil.c
[2023-11-19 08:03:12,511 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-11-19 08:03:12,800 INFO  L384              CDTParser]: Found 1 translation units.
[2023-11-19 08:03:12,801 INFO  L180              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3cea6b1-a231-4cb3-877a-69f737578234/sv-benchmarks/c/product-lines/minepump_spec4_product60.cil.c
[2023-11-19 08:03:12,815 INFO  L427              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3cea6b1-a231-4cb3-877a-69f737578234/bin/uautomizer-verify-uCwYo4JHxu/data/22a51cd22/71ea3ddc6b4745d7b260070127998c7a/FLAG00715bae6
[2023-11-19 08:03:12,830 INFO  L435              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3cea6b1-a231-4cb3-877a-69f737578234/bin/uautomizer-verify-uCwYo4JHxu/data/22a51cd22/71ea3ddc6b4745d7b260070127998c7a
[2023-11-19 08:03:12,833 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-19 08:03:12,834 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-19 08:03:12,836 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-19 08:03:12,836 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-19 08:03:12,844 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-19 08:03:12,845 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:03:12" (1/1) ...
[2023-11-19 08:03:12,846 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@695728c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:12, skipping insertion in model container
[2023-11-19 08:03:12,847 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:03:12" (1/1) ...
[2023-11-19 08:03:12,911 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-11-19 08:03:13,238 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-11-19 08:03:13,252 INFO  L202         MainTranslator]: Completed pre-run
[2023-11-19 08:03:13,262 WARN  L75    lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49]
[2023-11-19 08:03:13,264 WARN  L75    lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [87]
[2023-11-19 08:03:13,264 WARN  L75    lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [188]
[2023-11-19 08:03:13,265 WARN  L75    lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [554]
[2023-11-19 08:03:13,265 WARN  L75    lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [583]
[2023-11-19 08:03:13,265 WARN  L75    lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [592]
[2023-11-19 08:03:13,265 WARN  L75    lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [839]
[2023-11-19 08:03:13,266 WARN  L75    lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [908]
[2023-11-19 08:03:13,323 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-11-19 08:03:13,344 INFO  L206         MainTranslator]: Completed translation
[2023-11-19 08:03:13,345 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:13 WrapperNode
[2023-11-19 08:03:13,345 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-19 08:03:13,346 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-11-19 08:03:13,346 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-11-19 08:03:13,346 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-11-19 08:03:13,354 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:13" (1/1) ...
[2023-11-19 08:03:13,368 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:13" (1/1) ...
[2023-11-19 08:03:13,407 INFO  L138                Inliner]: procedures = 58, calls = 104, calls flagged for inlining = 57, calls inlined = 101, statements flattened = 685
[2023-11-19 08:03:13,407 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-11-19 08:03:13,408 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-11-19 08:03:13,408 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-11-19 08:03:13,408 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-11-19 08:03:13,417 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:13" (1/1) ...
[2023-11-19 08:03:13,418 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:13" (1/1) ...
[2023-11-19 08:03:13,422 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:13" (1/1) ...
[2023-11-19 08:03:13,423 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:13" (1/1) ...
[2023-11-19 08:03:13,434 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:13" (1/1) ...
[2023-11-19 08:03:13,441 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:13" (1/1) ...
[2023-11-19 08:03:13,458 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:13" (1/1) ...
[2023-11-19 08:03:13,461 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:13" (1/1) ...
[2023-11-19 08:03:13,466 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-11-19 08:03:13,467 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-11-19 08:03:13,478 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-11-19 08:03:13,478 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-11-19 08:03:13,479 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:13" (1/1) ...
[2023-11-19 08:03:13,486 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 08:03:13,504 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3cea6b1-a231-4cb3-877a-69f737578234/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 08:03:13,523 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3cea6b1-a231-4cb3-877a-69f737578234/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2023-11-19 08:03:13,537 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3cea6b1-a231-4cb3-877a-69f737578234/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process
[2023-11-19 08:03:13,571 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-11-19 08:03:13,571 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2023-11-19 08:03:13,572 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-11-19 08:03:13,572 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-11-19 08:03:13,672 INFO  L236             CfgBuilder]: Building ICFG
[2023-11-19 08:03:13,674 INFO  L262             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-11-19 08:03:14,247 INFO  L277             CfgBuilder]: Performing block encoding
[2023-11-19 08:03:14,266 INFO  L297             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-11-19 08:03:14,266 INFO  L302             CfgBuilder]: Removed 2 assume(true) statements.
[2023-11-19 08:03:14,272 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:03:14 BoogieIcfgContainer
[2023-11-19 08:03:14,272 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-11-19 08:03:14,273 INFO  L112        PluginConnector]: ------------------------BuchiAutomizer----------------------------
[2023-11-19 08:03:14,273 INFO  L270        PluginConnector]: Initializing BuchiAutomizer...
[2023-11-19 08:03:14,278 INFO  L274        PluginConnector]: BuchiAutomizer initialized
[2023-11-19 08:03:14,278 INFO  L99          BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2023-11-19 08:03:14,279 INFO  L184        PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 08:03:12" (1/3) ...
[2023-11-19 08:03:14,280 INFO  L204        PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@56ec48d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 08:03:14, skipping insertion in model container
[2023-11-19 08:03:14,280 INFO  L99          BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2023-11-19 08:03:14,280 INFO  L184        PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:13" (2/3) ...
[2023-11-19 08:03:14,281 INFO  L204        PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@56ec48d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 08:03:14, skipping insertion in model container
[2023-11-19 08:03:14,281 INFO  L99          BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2023-11-19 08:03:14,281 INFO  L184        PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:03:14" (3/3) ...
[2023-11-19 08:03:14,283 INFO  L332   chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product60.cil.c
[2023-11-19 08:03:14,351 INFO  L303   stractBuchiCegarLoop]: Interprodecural is true
[2023-11-19 08:03:14,352 INFO  L304   stractBuchiCegarLoop]: Hoare is false
[2023-11-19 08:03:14,352 INFO  L305   stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates
[2023-11-19 08:03:14,352 INFO  L306   stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE
[2023-11-19 08:03:14,352 INFO  L307   stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2023-11-19 08:03:14,352 INFO  L308   stractBuchiCegarLoop]: Difference is false
[2023-11-19 08:03:14,353 INFO  L309   stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA
[2023-11-19 08:03:14,353 INFO  L313   stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ========
[2023-11-19 08:03:14,359 INFO  L72            BuchiIsEmpty]: Start buchiIsEmpty. Operand  has 194 states, 193 states have (on average 1.3523316062176165) internal successors, (261), 193 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 08:03:14,392 INFO  L131   ngComponentsAnalysis]: Automaton has 2 accepting balls. 127
[2023-11-19 08:03:14,392 INFO  L87            BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2023-11-19 08:03:14,392 INFO  L119           BuchiIsEmpty]: Starting construction of run
[2023-11-19 08:03:14,400 INFO  L148   hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1]
[2023-11-19 08:03:14,400 INFO  L149   hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 08:03:14,400 INFO  L335   stractBuchiCegarLoop]: ======== Iteration 1 ============
[2023-11-19 08:03:14,401 INFO  L72            BuchiIsEmpty]: Start buchiIsEmpty. Operand  has 194 states, 193 states have (on average 1.3523316062176165) internal successors, (261), 193 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 08:03:14,412 INFO  L131   ngComponentsAnalysis]: Automaton has 2 accepting balls. 127
[2023-11-19 08:03:14,413 INFO  L87            BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2023-11-19 08:03:14,413 INFO  L119           BuchiIsEmpty]: Starting construction of run
[2023-11-19 08:03:14,414 INFO  L148   hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1]
[2023-11-19 08:03:14,414 INFO  L149   hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 08:03:14,420 INFO  L748   eck$LassoCheckResult]: Stem: 106#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 115#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret5#1, main_~retValue_acc~2#1, main_~tmp~0#1;havoc main_~retValue_acc~2#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 12#select_helpers_returnLabel#1true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 173#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~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 56#valid_product_returnLabel#1true main_#t~ret5#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret5#1;havoc main_#t~ret5#1; 86#L175true assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 42#setup_returnLabel#1true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet45#1, test_#t~nondet46#1, test_#t~nondet47#1, test_#t~nondet48#1, test_~splverifierCounter~0#1, test_~tmp~10#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~10#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 191#L850-2true 
[2023-11-19 08:03:14,421 INFO  L750   eck$LassoCheckResult]: Loop: 191#L850-2true assume !false; 149#L851true assume test_~splverifierCounter~0#1 < 4; 95#L852true havoc test_#t~nondet45#1;test_~tmp~10#1 := test_#t~nondet45#1;havoc test_#t~nondet45#1; 67#L860true assume !(0 != test_~tmp~10#1); 159#L860-2true havoc test_#t~nondet46#1;test_~tmp___0~3#1 := test_#t~nondet46#1;havoc test_#t~nondet46#1; 49#L870true assume !(0 != test_~tmp___0~3#1); 150#L870-2true havoc test_#t~nondet47#1;test_~tmp___2~0#1 := test_#t~nondet47#1;havoc test_#t~nondet47#1; 109#L880true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 29#startSystem_returnLabel#1true assume { :end_inline_startSystem } true; 138#L888-2true assume { :begin_inline_timeShift } true; 48#L609true assume !(0 != ~pumpRunning~0); 194#L609-2true assume !(0 != ~systemActive~0); 58#L616-1true assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret29#1, __utac_acc__Specification4_spec__1_#t~ret30#1, __utac_acc__Specification4_spec__1_~tmp~4#1, __utac_acc__Specification4_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification4_spec__1_~tmp~4#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~11#1;havoc getWaterLevel_~retValue_acc~11#1;getWaterLevel_~retValue_acc~11#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~11#1; 132#getWaterLevel_returnLabel#1true __utac_acc__Specification4_spec__1_#t~ret29#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~11#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~4#1 := __utac_acc__Specification4_spec__1_#t~ret29#1;havoc __utac_acc__Specification4_spec__1_#t~ret29#1; 69#L566true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~4#1); 134#L566-1true havoc __utac_acc__Specification4_spec__1_#t~ret29#1, __utac_acc__Specification4_spec__1_#t~ret30#1, __utac_acc__Specification4_spec__1_~tmp~4#1, __utac_acc__Specification4_spec__1_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification4_spec__1 } true; 133#timeShift_returnLabel#1true assume { :end_inline_timeShift } true; 191#L850-2true 
[2023-11-19 08:03:14,427 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 08:03:14,428 INFO  L85        PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times
[2023-11-19 08:03:14,438 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 08:03:14,439 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116332487]
[2023-11-19 08:03:14,439 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 08:03:14,440 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 08:03:14,562 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 08:03:14,562 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-11-19 08:03:14,599 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 08:03:14,629 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-11-19 08:03:14,632 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 08:03:14,632 INFO  L85        PathProgramCache]: Analyzing trace with hash -1231957085, now seen corresponding path program 1 times
[2023-11-19 08:03:14,632 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 08:03:14,633 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187754644]
[2023-11-19 08:03:14,633 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 08:03:14,633 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 08:03:14,663 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:03:14,800 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 08:03:14,801 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 08:03:14,801 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187754644]
[2023-11-19 08:03:14,802 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187754644] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 08:03:14,802 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 08:03:14,802 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-11-19 08:03:14,803 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788871565]
[2023-11-19 08:03:14,806 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 08:03:14,811 INFO  L765   eck$LassoCheckResult]: loop already infeasible
[2023-11-19 08:03:14,811 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 08:03:14,845 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-19 08:03:14,846 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-19 08:03:14,849 INFO  L87              Difference]: Start difference. First operand  has 194 states, 193 states have (on average 1.3523316062176165) internal successors, (261), 193 states have internal predecessors, (261), 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)
[2023-11-19 08:03:14,949 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 08:03:14,950 INFO  L93              Difference]: Finished difference Result 367 states and 483 transitions.
[2023-11-19 08:03:14,951 INFO  L82        GeneralOperation]: Start removeNonLiveStates. Operand 367 states and 483 transitions.
[2023-11-19 08:03:14,961 INFO  L131   ngComponentsAnalysis]: Automaton has 3 accepting balls. 240
[2023-11-19 08:03:14,972 INFO  L88        GeneralOperation]: Finished removeNonLiveStates. Reduced from 367 states to 347 states and 462 transitions.
[2023-11-19 08:03:14,973 INFO  L87         BuchiClosureNwa]: Accepting states before buchiClosure: 347
[2023-11-19 08:03:14,975 INFO  L106        BuchiClosureNwa]: Accepting states after buchiClosure: 347
[2023-11-19 08:03:14,980 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 347 states and 462 transitions.
[2023-11-19 08:03:14,983 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 08:03:14,983 INFO  L218   hiAutomatonCegarLoop]: Abstraction has 347 states and 462 transitions.
[2023-11-19 08:03:15,009 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 347 states and 462 transitions.
[2023-11-19 08:03:15,039 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 344.
[2023-11-19 08:03:15,041 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 344 states, 344 states have (on average 1.3313953488372092) internal successors, (458), 343 states have internal predecessors, (458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 08:03:15,044 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 458 transitions.
[2023-11-19 08:03:15,045 INFO  L240   hiAutomatonCegarLoop]: Abstraction has 344 states and 458 transitions.
[2023-11-19 08:03:15,049 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-11-19 08:03:15,057 INFO  L428   stractBuchiCegarLoop]: Abstraction has 344 states and 458 transitions.
[2023-11-19 08:03:15,058 INFO  L335   stractBuchiCegarLoop]: ======== Iteration 2 ============
[2023-11-19 08:03:15,058 INFO  L72            BuchiIsEmpty]: Start buchiIsEmpty. Operand 344 states and 458 transitions.
[2023-11-19 08:03:15,062 INFO  L131   ngComponentsAnalysis]: Automaton has 3 accepting balls. 237
[2023-11-19 08:03:15,062 INFO  L87            BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2023-11-19 08:03:15,062 INFO  L119           BuchiIsEmpty]: Starting construction of run
[2023-11-19 08:03:15,063 INFO  L148   hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1]
[2023-11-19 08:03:15,064 INFO  L149   hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 08:03:15,064 INFO  L748   eck$LassoCheckResult]: Stem: 636#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 637#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret5#1, main_~retValue_acc~2#1, main_~tmp~0#1;havoc main_~retValue_acc~2#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 630#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 631#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~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 734#valid_product_returnLabel#1 main_#t~ret5#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret5#1;havoc main_#t~ret5#1; 576#L175 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 577#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet45#1, test_#t~nondet46#1, test_#t~nondet47#1, test_#t~nondet48#1, test_~splverifierCounter~0#1, test_~tmp~10#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~10#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 708#L850-2 
[2023-11-19 08:03:15,064 INFO  L750   eck$LassoCheckResult]: Loop: 708#L850-2 assume !false; 775#L851 assume test_~splverifierCounter~0#1 < 4; 774#L852 havoc test_#t~nondet45#1;test_~tmp~10#1 := test_#t~nondet45#1;havoc test_#t~nondet45#1; 751#L860 assume !(0 != test_~tmp~10#1); 626#L860-2 havoc test_#t~nondet46#1;test_~tmp___0~3#1 := test_#t~nondet46#1;havoc test_#t~nondet46#1; 724#L870 assume !(0 != test_~tmp___0~3#1); 723#L870-2 havoc test_#t~nondet47#1;test_~tmp___2~0#1 := test_#t~nondet47#1;havoc test_#t~nondet47#1; 643#L880 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 644#startSystem_returnLabel#1 assume { :end_inline_startSystem } true; 616#L888-2 assume { :begin_inline_timeShift } true; 705#L609 assume !(0 != ~pumpRunning~0); 719#L609-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret32#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 762#L667 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret31#1, processEnvironment__wrappee__highWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5#1; 748#L641-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 570#processEnvironment__wrappee__base_returnLabel#4 assume { :end_inline_processEnvironment__wrappee__base } true; 571#L641-3 havoc processEnvironment__wrappee__highWaterSensor_#t~ret31#1, processEnvironment__wrappee__highWaterSensor_~tmp~5#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 783#L667-1 havoc processEnvironment_#t~ret32#1, processEnvironment_~tmp~6#1;assume { :end_inline_processEnvironment } true; 782#L616-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret29#1, __utac_acc__Specification4_spec__1_#t~ret30#1, __utac_acc__Specification4_spec__1_~tmp~4#1, __utac_acc__Specification4_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification4_spec__1_~tmp~4#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~11#1;havoc getWaterLevel_~retValue_acc~11#1;getWaterLevel_~retValue_acc~11#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~11#1; 781#getWaterLevel_returnLabel#1 __utac_acc__Specification4_spec__1_#t~ret29#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~11#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~4#1 := __utac_acc__Specification4_spec__1_#t~ret29#1;havoc __utac_acc__Specification4_spec__1_#t~ret29#1; 779#L566 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~4#1); 777#L566-1 havoc __utac_acc__Specification4_spec__1_#t~ret29#1, __utac_acc__Specification4_spec__1_#t~ret30#1, __utac_acc__Specification4_spec__1_~tmp~4#1, __utac_acc__Specification4_spec__1_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification4_spec__1 } true; 776#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 708#L850-2 
[2023-11-19 08:03:15,065 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 08:03:15,065 INFO  L85        PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times
[2023-11-19 08:03:15,066 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 08:03:15,066 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254360830]
[2023-11-19 08:03:15,066 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 08:03:15,067 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 08:03:15,080 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 08:03:15,080 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-11-19 08:03:15,090 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 08:03:15,095 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-11-19 08:03:15,096 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 08:03:15,096 INFO  L85        PathProgramCache]: Analyzing trace with hash 1933583873, now seen corresponding path program 1 times
[2023-11-19 08:03:15,097 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 08:03:15,097 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008568303]
[2023-11-19 08:03:15,097 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 08:03:15,098 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 08:03:15,106 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:03:15,129 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 08:03:15,130 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 08:03:15,130 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008568303]
[2023-11-19 08:03:15,130 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008568303] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 08:03:15,131 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 08:03:15,131 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-11-19 08:03:15,131 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028477269]
[2023-11-19 08:03:15,131 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 08:03:15,132 INFO  L765   eck$LassoCheckResult]: loop already infeasible
[2023-11-19 08:03:15,132 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 08:03:15,133 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-19 08:03:15,133 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-19 08:03:15,134 INFO  L87              Difference]: Start difference. First operand 344 states and 458 transitions. cyclomatic complexity: 117 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)
[2023-11-19 08:03:15,231 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 08:03:15,231 INFO  L93              Difference]: Finished difference Result 468 states and 599 transitions.
[2023-11-19 08:03:15,231 INFO  L82        GeneralOperation]: Start removeNonLiveStates. Operand 468 states and 599 transitions.
[2023-11-19 08:03:15,237 INFO  L131   ngComponentsAnalysis]: Automaton has 3 accepting balls. 331
[2023-11-19 08:03:15,242 INFO  L88        GeneralOperation]: Finished removeNonLiveStates. Reduced from 468 states to 468 states and 599 transitions.
[2023-11-19 08:03:15,242 INFO  L87         BuchiClosureNwa]: Accepting states before buchiClosure: 468
[2023-11-19 08:03:15,244 INFO  L106        BuchiClosureNwa]: Accepting states after buchiClosure: 468
[2023-11-19 08:03:15,244 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 468 states and 599 transitions.
[2023-11-19 08:03:15,247 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 08:03:15,248 INFO  L218   hiAutomatonCegarLoop]: Abstraction has 468 states and 599 transitions.
[2023-11-19 08:03:15,249 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 468 states and 599 transitions.
[2023-11-19 08:03:15,271 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 468.
[2023-11-19 08:03:15,272 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 468 states, 468 states have (on average 1.2799145299145298) internal successors, (599), 467 states have internal predecessors, (599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 08:03:15,275 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 599 transitions.
[2023-11-19 08:03:15,275 INFO  L240   hiAutomatonCegarLoop]: Abstraction has 468 states and 599 transitions.
[2023-11-19 08:03:15,276 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-11-19 08:03:15,277 INFO  L428   stractBuchiCegarLoop]: Abstraction has 468 states and 599 transitions.
[2023-11-19 08:03:15,277 INFO  L335   stractBuchiCegarLoop]: ======== Iteration 3 ============
[2023-11-19 08:03:15,277 INFO  L72            BuchiIsEmpty]: Start buchiIsEmpty. Operand 468 states and 599 transitions.
[2023-11-19 08:03:15,281 INFO  L131   ngComponentsAnalysis]: Automaton has 3 accepting balls. 331
[2023-11-19 08:03:15,281 INFO  L87            BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2023-11-19 08:03:15,281 INFO  L119           BuchiIsEmpty]: Starting construction of run
[2023-11-19 08:03:15,282 INFO  L148   hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1]
[2023-11-19 08:03:15,283 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]
[2023-11-19 08:03:15,283 INFO  L748   eck$LassoCheckResult]: Stem: 1451#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 1452#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret5#1, main_~retValue_acc~2#1, main_~tmp~0#1;havoc main_~retValue_acc~2#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 1446#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1447#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~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 1561#valid_product_returnLabel#1 main_#t~ret5#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret5#1;havoc main_#t~ret5#1; 1392#L175 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 1393#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet45#1, test_#t~nondet46#1, test_#t~nondet47#1, test_#t~nondet48#1, test_~splverifierCounter~0#1, test_~tmp~10#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~10#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1522#L850-2 
[2023-11-19 08:03:15,283 INFO  L750   eck$LassoCheckResult]: Loop: 1522#L850-2 assume !false; 1548#L851 assume test_~splverifierCounter~0#1 < 4; 1549#L852 havoc test_#t~nondet45#1;test_~tmp~10#1 := test_#t~nondet45#1;havoc test_#t~nondet45#1; 1848#L860 assume !(0 != test_~tmp~10#1); 1846#L860-2 havoc test_#t~nondet46#1;test_~tmp___0~3#1 := test_#t~nondet46#1;havoc test_#t~nondet46#1; 1552#L870 assume !(0 != test_~tmp___0~3#1); 1551#L870-2 havoc test_#t~nondet47#1;test_~tmp___2~0#1 := test_#t~nondet47#1;havoc test_#t~nondet47#1; 1457#L880 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 1458#startSystem_returnLabel#1 assume { :end_inline_startSystem } true; 1434#L888-2 assume { :begin_inline_timeShift } true; 1530#L609 assume !(0 != ~pumpRunning~0); 1547#L609-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret32#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 1600#L667 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret31#1, processEnvironment__wrappee__highWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5#1; 1612#L641-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret43#1, isHighWaterLevel_~retValue_acc~8#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~8#1;havoc isHighWaterLevel_~tmp~8#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~12#1;havoc isHighWaterSensorDry_~retValue_acc~12#1; 1852#L992-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~12#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~12#1; 1851#isHighWaterSensorDry_returnLabel#2 isHighWaterLevel_#t~ret43#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~12#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8#1 := isHighWaterLevel_#t~ret43#1;havoc isHighWaterLevel_#t~ret43#1; 1850#L787-3 assume 0 != isHighWaterLevel_~tmp~8#1;isHighWaterLevel_~tmp___0~1#1 := 0; 1760#L787-5 isHighWaterLevel_~retValue_acc~8#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~8#1; 1757#isHighWaterLevel_returnLabel#2 processEnvironment__wrappee__highWaterSensor_#t~ret31#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret43#1, isHighWaterLevel_~retValue_acc~8#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~5#1 := processEnvironment__wrappee__highWaterSensor_#t~ret31#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret31#1; 1755#L645-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1753#processEnvironment__wrappee__base_returnLabel#3 assume { :end_inline_processEnvironment__wrappee__base } true; 1752#L641-3 havoc processEnvironment__wrappee__highWaterSensor_#t~ret31#1, processEnvironment__wrappee__highWaterSensor_~tmp~5#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1693#L667-1 havoc processEnvironment_#t~ret32#1, processEnvironment_~tmp~6#1;assume { :end_inline_processEnvironment } true; 1692#L616-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret29#1, __utac_acc__Specification4_spec__1_#t~ret30#1, __utac_acc__Specification4_spec__1_~tmp~4#1, __utac_acc__Specification4_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification4_spec__1_~tmp~4#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~11#1;havoc getWaterLevel_~retValue_acc~11#1;getWaterLevel_~retValue_acc~11#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~11#1; 1691#getWaterLevel_returnLabel#1 __utac_acc__Specification4_spec__1_#t~ret29#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~11#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~4#1 := __utac_acc__Specification4_spec__1_#t~ret29#1;havoc __utac_acc__Specification4_spec__1_#t~ret29#1; 1689#L566 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~4#1); 1685#L566-1 havoc __utac_acc__Specification4_spec__1_#t~ret29#1, __utac_acc__Specification4_spec__1_#t~ret30#1, __utac_acc__Specification4_spec__1_~tmp~4#1, __utac_acc__Specification4_spec__1_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification4_spec__1 } true; 1521#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1522#L850-2 
[2023-11-19 08:03:15,284 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 08:03:15,284 INFO  L85        PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times
[2023-11-19 08:03:15,285 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 08:03:15,285 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368490222]
[2023-11-19 08:03:15,285 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 08:03:15,285 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 08:03:15,297 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 08:03:15,297 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-11-19 08:03:15,306 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 08:03:15,311 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-11-19 08:03:15,312 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 08:03:15,312 INFO  L85        PathProgramCache]: Analyzing trace with hash -284492839, now seen corresponding path program 1 times
[2023-11-19 08:03:15,312 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 08:03:15,313 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271923524]
[2023-11-19 08:03:15,313 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 08:03:15,313 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 08:03:15,381 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 08:03:15,381 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-11-19 08:03:15,387 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 08:03:15,427 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-11-19 08:03:15,428 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 08:03:15,428 INFO  L85        PathProgramCache]: Analyzing trace with hash -1535474787, now seen corresponding path program 1 times
[2023-11-19 08:03:15,428 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 08:03:15,429 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983364390]
[2023-11-19 08:03:15,429 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 08:03:15,429 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 08:03:15,452 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 08:03:15,456 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-11-19 08:03:15,467 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 08:03:15,496 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-11-19 08:03:16,824 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 08:03:16,824 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-11-19 08:03:16,834 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 08:03:16,912 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 08:03:16 BoogieIcfgContainer
[2023-11-19 08:03:16,913 INFO  L131        PluginConnector]: ------------------------ END BuchiAutomizer----------------------------
[2023-11-19 08:03:16,914 INFO  L112        PluginConnector]: ------------------------Witness Printer----------------------------
[2023-11-19 08:03:16,914 INFO  L270        PluginConnector]: Initializing Witness Printer...
[2023-11-19 08:03:16,915 INFO  L274        PluginConnector]: Witness Printer initialized
[2023-11-19 08:03:16,915 INFO  L184        PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:03:14" (3/4) ...
[2023-11-19 08:03:16,917 INFO  L134         WitnessPrinter]: Generating witness for non-termination counterexample
[2023-11-19 08:03:17,001 INFO  L149         WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3cea6b1-a231-4cb3-877a-69f737578234/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml
[2023-11-19 08:03:17,002 INFO  L131        PluginConnector]: ------------------------ END Witness Printer----------------------------
[2023-11-19 08:03:17,002 INFO  L158              Benchmark]: Toolchain (without parser) took 4168.32ms. Allocated memory is still 174.1MB. Free memory was 133.7MB in the beginning and 85.6MB in the end (delta: 48.1MB). Peak memory consumption was 47.8MB. Max. memory is 16.1GB.
[2023-11-19 08:03:17,003 INFO  L158              Benchmark]: CDTParser took 0.72ms. Allocated memory is still 117.4MB. Free memory is still 86.0MB. There was no memory consumed. Max. memory is 16.1GB.
[2023-11-19 08:03:17,003 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 509.58ms. Allocated memory is still 174.1MB. Free memory was 133.7MB in the beginning and 131.8MB in the end (delta: 1.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB.
[2023-11-19 08:03:17,004 INFO  L158              Benchmark]: Boogie Procedure Inliner took 61.41ms. Allocated memory is still 174.1MB. Free memory was 131.8MB in the beginning and 128.5MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
[2023-11-19 08:03:17,004 INFO  L158              Benchmark]: Boogie Preprocessor took 57.99ms. Allocated memory is still 174.1MB. Free memory was 128.5MB in the beginning and 125.6MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-11-19 08:03:17,005 INFO  L158              Benchmark]: RCFGBuilder took 805.43ms. Allocated memory is still 174.1MB. Free memory was 125.6MB in the beginning and 98.4MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB.
[2023-11-19 08:03:17,005 INFO  L158              Benchmark]: BuchiAutomizer took 2639.81ms. Allocated memory is still 174.1MB. Free memory was 98.4MB in the beginning and 88.7MB in the end (delta: 9.7MB). Peak memory consumption was 11.2MB. Max. memory is 16.1GB.
[2023-11-19 08:03:17,006 INFO  L158              Benchmark]: Witness Printer took 87.53ms. Allocated memory is still 174.1MB. Free memory was 88.7MB in the beginning and 85.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
[2023-11-19 08:03:17,009 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.72ms. Allocated memory is still 117.4MB. Free memory is still 86.0MB. There was no memory consumed. Max. memory is 16.1GB.
 * CACSL2BoogieTranslator took 509.58ms. Allocated memory is still 174.1MB. Free memory was 133.7MB in the beginning and 131.8MB in the end (delta: 1.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB.
 * Boogie Procedure Inliner took 61.41ms. Allocated memory is still 174.1MB. Free memory was 131.8MB in the beginning and 128.5MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
 * Boogie Preprocessor took 57.99ms. Allocated memory is still 174.1MB. Free memory was 128.5MB in the beginning and 125.6MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
 * RCFGBuilder took 805.43ms. Allocated memory is still 174.1MB. Free memory was 125.6MB in the beginning and 98.4MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB.
 * BuchiAutomizer took 2639.81ms. Allocated memory is still 174.1MB. Free memory was 98.4MB in the beginning and 88.7MB in the end (delta: 9.7MB). Peak memory consumption was 11.2MB. Max. memory is 16.1GB.
 * Witness Printer took 87.53ms. Allocated memory is still 174.1MB. Free memory was 88.7MB in the beginning and 85.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator:
  - GenericResultAtLocation [Line: 49]: Unsoundness Warning
    Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49]
  - GenericResultAtLocation [Line: 87]: Unsoundness Warning
    Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [87]
  - GenericResultAtLocation [Line: 188]: Unsoundness Warning
    Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [188]
  - GenericResultAtLocation [Line: 554]: Unsoundness Warning
    Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [554]
  - GenericResultAtLocation [Line: 583]: Unsoundness Warning
    Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [583]
  - GenericResultAtLocation [Line: 592]: Unsoundness Warning
    Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [592]
  - GenericResultAtLocation [Line: 839]: Unsoundness Warning
    Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [839]
  - GenericResultAtLocation [Line: 908]: Unsoundness Warning
    Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [908]
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: Constructed decomposition of program
    Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 468 locations.
  - StatisticsResult: Timing statistics
    BüchiAutomizer plugin needed 2.5s and 3 iterations.  TraceHistogramMax:1. Analysis of lassos took 2.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 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, 407 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 407 mSDsluCounter, 811 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 336 mSDsCounter, 26 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 41 IncrementalHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 26 mSolverCounterUnsat, 475 mSDtfsCounter, 41 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown	LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc0 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: 850]: Nontermination argument in form of an infinite program execution.
    Nontermination argument in form of an infinite program execution.
Stem:
[L88]               int cleanupTimeShifts  =    4;
[L358]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L602]              int pumpRunning  =    0;
[L603]              int systemActive  =    1;
[L909]              int waterLevel  =    1;
[L910]              int methaneLevelCritical  =    0;
        VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L166]              int retValue_acc ;
[L167]              int tmp ;
[L171]  FCALL       select_helpers()
[L172]  FCALL       select_features()
[L173]  CALL, EXPR  valid_product()
[L79]               int retValue_acc ;
[L82]               retValue_acc = 1
[L83]               return (retValue_acc);
        VAL         [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1]
[L173]  RET, EXPR   valid_product()
[L173]              tmp = valid_product()
[L175]  COND TRUE   \read(tmp)
[L177]  FCALL       setup()
[L178]  CALL        runTest()
[L160]  CALL        test()
[L841]              int splverifierCounter ;
[L842]              int tmp ;
[L843]              int tmp___0 ;
[L844]              int tmp___1 ;
[L845]              int tmp___2 ;
[L848]              splverifierCounter = 0
        VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1]
Loop:
[L850]  COND TRUE   1
[L852]  COND TRUE   splverifierCounter < 4
[L858]              tmp = __VERIFIER_nondet_int()
[L860]  COND FALSE  !(\read(tmp))
[L868]              tmp___0 = __VERIFIER_nondet_int()
[L870]  COND FALSE  !(\read(tmp___0))
[L878]              tmp___2 = __VERIFIER_nondet_int()
[L880]  COND TRUE   \read(tmp___2)
[L882]  CALL        startSystem()
[L835]              systemActive = 1
[L882]  RET         startSystem()
[L897]  CALL        timeShift()
[L609]  COND FALSE  !(\read(pumpRunning))
[L616]  COND TRUE   \read(systemActive)
[L618]  CALL        processEnvironment()
[L664]              int tmp ;
[L667]  COND FALSE  !(\read(pumpRunning))
[L682]  CALL        processEnvironment__wrappee__highWaterSensor()
[L638]              int tmp ;
[L641]  COND TRUE   ! pumpRunning
[L643]  CALL, EXPR  isHighWaterLevel()
[L779]              int retValue_acc ;
[L780]              int tmp ;
[L781]              int tmp___0 ;
[L785]  CALL, EXPR  isHighWaterSensorDry()
[L989]              int retValue_acc ;
[L992]  COND TRUE   waterLevel < 2
[L993]              retValue_acc = 1
[L994]              return (retValue_acc);
[L785]  RET, EXPR   isHighWaterSensorDry()
[L785]              tmp = isHighWaterSensorDry()
[L787]  COND TRUE   \read(tmp)
[L788]              tmp___0 = 0
[L792]              retValue_acc = tmp___0
[L793]              return (retValue_acc);
[L643]  RET, EXPR   isHighWaterLevel()
[L643]              tmp = isHighWaterLevel()
[L645]  COND FALSE  !(\read(tmp))
[L651]  FCALL       processEnvironment__wrappee__base()
[L682]  RET         processEnvironment__wrappee__highWaterSensor()
[L618]  RET         processEnvironment()
[L624]  CALL        __utac_acc__Specification4_spec__1()
[L559]              int tmp ;
[L560]              int tmp___0 ;
[L564]  CALL, EXPR  getWaterLevel()
[L980]              int retValue_acc ;
[L983]              retValue_acc = waterLevel
[L984]              return (retValue_acc);
[L564]  RET, EXPR   getWaterLevel()
[L564]              tmp = getWaterLevel()
[L566]  COND FALSE  !(tmp == 0)
[L624]  RET         __utac_acc__Specification4_spec__1()
[L897]  RET         timeShift()
End of lasso representation.
  - StatisticsResult: NonterminationArgumentStatistics
    Fixpoint
  - NonterminatingLassoResult [Line: 850]: Nonterminating execution
    Found a nonterminating execution for the following lasso shaped sequence of statements.
Stem:
[L88]               int cleanupTimeShifts  =    4;
[L358]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L602]              int pumpRunning  =    0;
[L603]              int systemActive  =    1;
[L909]              int waterLevel  =    1;
[L910]              int methaneLevelCritical  =    0;
        VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L166]              int retValue_acc ;
[L167]              int tmp ;
[L171]  FCALL       select_helpers()
[L172]  FCALL       select_features()
[L173]  CALL, EXPR  valid_product()
[L79]               int retValue_acc ;
[L82]               retValue_acc = 1
[L83]               return (retValue_acc);
        VAL         [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1]
[L173]  RET, EXPR   valid_product()
[L173]              tmp = valid_product()
[L175]  COND TRUE   \read(tmp)
[L177]  FCALL       setup()
[L178]  CALL        runTest()
[L160]  CALL        test()
[L841]              int splverifierCounter ;
[L842]              int tmp ;
[L843]              int tmp___0 ;
[L844]              int tmp___1 ;
[L845]              int tmp___2 ;
[L848]              splverifierCounter = 0
        VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1]
Loop:
[L850]  COND TRUE   1
[L852]  COND TRUE   splverifierCounter < 4
[L858]              tmp = __VERIFIER_nondet_int()
[L860]  COND FALSE  !(\read(tmp))
[L868]              tmp___0 = __VERIFIER_nondet_int()
[L870]  COND FALSE  !(\read(tmp___0))
[L878]              tmp___2 = __VERIFIER_nondet_int()
[L880]  COND TRUE   \read(tmp___2)
[L882]  CALL        startSystem()
[L835]              systemActive = 1
[L882]  RET         startSystem()
[L897]  CALL        timeShift()
[L609]  COND FALSE  !(\read(pumpRunning))
[L616]  COND TRUE   \read(systemActive)
[L618]  CALL        processEnvironment()
[L664]              int tmp ;
[L667]  COND FALSE  !(\read(pumpRunning))
[L682]  CALL        processEnvironment__wrappee__highWaterSensor()
[L638]              int tmp ;
[L641]  COND TRUE   ! pumpRunning
[L643]  CALL, EXPR  isHighWaterLevel()
[L779]              int retValue_acc ;
[L780]              int tmp ;
[L781]              int tmp___0 ;
[L785]  CALL, EXPR  isHighWaterSensorDry()
[L989]              int retValue_acc ;
[L992]  COND TRUE   waterLevel < 2
[L993]              retValue_acc = 1
[L994]              return (retValue_acc);
[L785]  RET, EXPR   isHighWaterSensorDry()
[L785]              tmp = isHighWaterSensorDry()
[L787]  COND TRUE   \read(tmp)
[L788]              tmp___0 = 0
[L792]              retValue_acc = tmp___0
[L793]              return (retValue_acc);
[L643]  RET, EXPR   isHighWaterLevel()
[L643]              tmp = isHighWaterLevel()
[L645]  COND FALSE  !(\read(tmp))
[L651]  FCALL       processEnvironment__wrappee__base()
[L682]  RET         processEnvironment__wrappee__highWaterSensor()
[L618]  RET         processEnvironment()
[L624]  CALL        __utac_acc__Specification4_spec__1()
[L559]              int tmp ;
[L560]              int tmp___0 ;
[L564]  CALL, EXPR  getWaterLevel()
[L980]              int retValue_acc ;
[L983]              retValue_acc = waterLevel
[L984]              return (retValue_acc);
[L564]  RET, EXPR   getWaterLevel()
[L564]              tmp = getWaterLevel()
[L566]  COND FALSE  !(tmp == 0)
[L624]  RET         __utac_acc__Specification4_spec__1()
[L897]  RET         timeShift()
End of lasso representation.
RESULT: Ultimate proved your program to be incorrect!
[2023-11-19 08:03:17,072 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3cea6b1-a231-4cb3-877a-69f737578234/bin/uautomizer-verify-uCwYo4JHxu/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)