./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product63.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_d8ce10a5-72aa-4ccb-b3c2-11ed1c85e7b9/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8ce10a5-72aa-4ccb-b3c2-11ed1c85e7b9/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_d8ce10a5-72aa-4ccb-b3c2-11ed1c85e7b9/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8ce10a5-72aa-4ccb-b3c2-11ed1c85e7b9/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product63.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8ce10a5-72aa-4ccb-b3c2-11ed1c85e7b9/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_d8ce10a5-72aa-4ccb-b3c2-11ed1c85e7b9/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 7c7779f94f1738e754b88f9a8a8e36de7065a4e94578f4135106bd0ff9ddb13d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:56:50,149 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:56:50,265 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8ce10a5-72aa-4ccb-b3c2-11ed1c85e7b9/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-19 07:56:50,272 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:56:50,273 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:56:50,313 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:56:50,314 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:56:50,314 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:56:50,316 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:56:50,321 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:56:50,321 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:56:50,322 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-19 07:56:50,322 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-19 07:56:50,324 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-19 07:56:50,324 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-19 07:56:50,325 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-19 07:56:50,325 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-19 07:56:50,326 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:56:50,326 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-19 07:56:50,327 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:56:50,327 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:56:50,328 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:56:50,328 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:56:50,329 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-19 07:56:50,329 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-19 07:56:50,329 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-19 07:56:50,330 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:56:50,330 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:56:50,331 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:56:50,331 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-19 07:56:50,332 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:56:50,333 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:56:50,333 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:56:50,333 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:56:50,333 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:56:50,334 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-19 07:56:50,334 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_d8ce10a5-72aa-4ccb-b3c2-11ed1c85e7b9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8ce10a5-72aa-4ccb-b3c2-11ed1c85e7b9/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c7779f94f1738e754b88f9a8a8e36de7065a4e94578f4135106bd0ff9ddb13d [2023-11-19 07:56:50,648 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:56:50,678 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:56:50,681 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:56:50,682 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:56:50,683 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:56:50,684 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8ce10a5-72aa-4ccb-b3c2-11ed1c85e7b9/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/product-lines/minepump_spec4_product63.cil.c [2023-11-19 07:56:53,693 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:56:54,045 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:56:54,060 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8ce10a5-72aa-4ccb-b3c2-11ed1c85e7b9/sv-benchmarks/c/product-lines/minepump_spec4_product63.cil.c [2023-11-19 07:56:54,077 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8ce10a5-72aa-4ccb-b3c2-11ed1c85e7b9/bin/uautomizer-verify-uCwYo4JHxu/data/4c5c9aa7a/3ccdbe24131f46c98b6d8e2d606bcf1b/FLAGa23f4191d [2023-11-19 07:56:54,092 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8ce10a5-72aa-4ccb-b3c2-11ed1c85e7b9/bin/uautomizer-verify-uCwYo4JHxu/data/4c5c9aa7a/3ccdbe24131f46c98b6d8e2d606bcf1b [2023-11-19 07:56:54,095 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:56:54,096 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:56:54,098 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:56:54,098 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:56:54,103 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:56:54,104 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:56:54" (1/1) ... [2023-11-19 07:56:54,104 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3253865c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:54, skipping insertion in model container [2023-11-19 07:56:54,105 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:56:54" (1/1) ... [2023-11-19 07:56:54,158 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:56:54,465 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:56:54,482 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:56:54,495 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [49] [2023-11-19 07:56:54,497 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [415] [2023-11-19 07:56:54,497 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [519] [2023-11-19 07:56:54,498 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [554] [2023-11-19 07:56:54,498 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [583] [2023-11-19 07:56:54,498 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [691] [2023-11-19 07:56:54,499 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [700] [2023-11-19 07:56:54,499 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [958] [2023-11-19 07:56:54,607 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:56:54,637 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:56:54,638 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:54 WrapperNode [2023-11-19 07:56:54,638 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:56:54,639 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:56:54,640 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:56:54,640 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:56:54,648 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:54" (1/1) ... [2023-11-19 07:56:54,674 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:54" (1/1) ... [2023-11-19 07:56:54,764 INFO L138 Inliner]: procedures = 58, calls = 107, calls flagged for inlining = 60, calls inlined = 178, statements flattened = 1210 [2023-11-19 07:56:54,764 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:56:54,765 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:56:54,765 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:56:54,765 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:56:54,776 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:54" (1/1) ... [2023-11-19 07:56:54,777 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:54" (1/1) ... [2023-11-19 07:56:54,787 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:54" (1/1) ... [2023-11-19 07:56:54,787 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:54" (1/1) ... [2023-11-19 07:56:54,810 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:54" (1/1) ... [2023-11-19 07:56:54,842 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:54" (1/1) ... [2023-11-19 07:56:54,845 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:54" (1/1) ... [2023-11-19 07:56:54,866 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:54" (1/1) ... [2023-11-19 07:56:54,876 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:56:54,877 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:56:54,878 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:56:54,878 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:56:54,879 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:54" (1/1) ... [2023-11-19 07:56:54,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:56:54,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8ce10a5-72aa-4ccb-b3c2-11ed1c85e7b9/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:56:54,926 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8ce10a5-72aa-4ccb-b3c2-11ed1c85e7b9/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:56:54,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8ce10a5-72aa-4ccb-b3c2-11ed1c85e7b9/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-19 07:56:54,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:56:54,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:56:54,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:56:54,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:56:55,064 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:56:55,066 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:56:55,825 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:56:55,840 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:56:55,840 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 07:56:55,847 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:56:55 BoogieIcfgContainer [2023-11-19 07:56:55,847 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:56:55,848 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-19 07:56:55,848 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-19 07:56:55,852 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-19 07:56:55,853 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:56:55,853 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 07:56:54" (1/3) ... [2023-11-19 07:56:55,854 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3d59a2bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 07:56:55, skipping insertion in model container [2023-11-19 07:56:55,854 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:56:55,854 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:54" (2/3) ... [2023-11-19 07:56:55,855 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3d59a2bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 07:56:55, skipping insertion in model container [2023-11-19 07:56:55,855 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:56:55,855 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:56:55" (3/3) ... [2023-11-19 07:56:55,856 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product63.cil.c [2023-11-19 07:56:55,933 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-19 07:56:55,933 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-19 07:56:55,933 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-19 07:56:55,933 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-19 07:56:55,934 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-19 07:56:55,934 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-19 07:56:55,935 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-19 07:56:55,935 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-19 07:56:55,945 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 325 states, 324 states have (on average 1.3487654320987654) internal successors, (437), 324 states have internal predecessors, (437), 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 07:56:56,009 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 214 [2023-11-19 07:56:56,009 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:56:56,009 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:56:56,020 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:56:56,021 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:56:56,021 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-19 07:56:56,022 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 325 states, 324 states have (on average 1.3487654320987654) internal successors, (437), 324 states have internal predecessors, (437), 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 07:56:56,033 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 214 [2023-11-19 07:56:56,033 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:56:56,033 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:56:56,037 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:56:56,037 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:56:56,043 INFO L748 eck$LassoCheckResult]: Stem: 190#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 210#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 26#select_helpers_returnLabel#1true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 297#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~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 101#valid_product_returnLabel#1true main_#t~ret27#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1; 131#L506true assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 74#setup_returnLabel#1true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet51#1, test_#t~nondet52#1, test_#t~nondet53#1, test_#t~nondet54#1, test_~splverifierCounter~0#1, test_~tmp~11#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~11#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 287#L969-2true [2023-11-19 07:56:56,044 INFO L750 eck$LassoCheckResult]: Loop: 287#L969-2true assume !false; 22#L970true assume test_~splverifierCounter~0#1 < 4; 258#L971true havoc test_#t~nondet51#1;test_~tmp~11#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 132#L979true assume !(0 != test_~tmp~11#1); 97#L979-2true havoc test_#t~nondet52#1;test_~tmp___0~3#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1; 196#L989true assume !(0 != test_~tmp___0~3#1); 54#L989-2true havoc test_#t~nondet53#1;test_~tmp___2~0#1 := test_#t~nondet53#1;havoc test_#t~nondet53#1; 306#L999true assume 0 != test_~tmp___2~0#1; 194#L1005-2true assume { :begin_inline_timeShift } true; 212#L711true assume !(0 != ~pumpRunning~0); 68#L711-2true assume !(0 != ~systemActive~0); 323#L718-1true 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~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; 237#getWaterLevel_returnLabel#1true __utac_acc__Specification4_spec__1_#t~ret29#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#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; 126#L566true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~4#1); 241#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; 238#timeShift_returnLabel#1true assume { :end_inline_timeShift } true; 287#L969-2true [2023-11-19 07:56:56,054 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:56,054 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2023-11-19 07:56:56,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:56:56,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630647912] [2023-11-19 07:56:56,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:56,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:56:56,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:56:56,273 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:56:56,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:56:56,327 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:56:56,331 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:56,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1022361798, now seen corresponding path program 1 times [2023-11-19 07:56:56,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:56:56,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529379855] [2023-11-19 07:56:56,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:56,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:56:56,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:56:56,357 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:56:56,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:56:56,387 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:56:56,389 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:56,389 INFO L85 PathProgramCache]: Analyzing trace with hash -1917186422, now seen corresponding path program 1 times [2023-11-19 07:56:56,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:56:56,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889472239] [2023-11-19 07:56:56,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:56,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:56:56,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:56,646 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 07:56:56,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:56:56,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889472239] [2023-11-19 07:56:56,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889472239] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:56:56,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:56:56,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:56:56,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543553197] [2023-11-19 07:56:56,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:56:56,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:56:56,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:56:56,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:56:56,826 INFO L87 Difference]: Start difference. First operand has 325 states, 324 states have (on average 1.3487654320987654) internal successors, (437), 324 states have internal predecessors, (437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:57,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:56:57,002 INFO L93 Difference]: Finished difference Result 695 states and 917 transitions. [2023-11-19 07:56:57,004 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 695 states and 917 transitions. [2023-11-19 07:56:57,011 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 455 [2023-11-19 07:56:57,023 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 695 states to 665 states and 887 transitions. [2023-11-19 07:56:57,025 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 665 [2023-11-19 07:56:57,026 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 665 [2023-11-19 07:56:57,027 INFO L73 IsDeterministic]: Start isDeterministic. Operand 665 states and 887 transitions. [2023-11-19 07:56:57,031 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:56:57,031 INFO L218 hiAutomatonCegarLoop]: Abstraction has 665 states and 887 transitions. [2023-11-19 07:56:57,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states and 887 transitions. [2023-11-19 07:56:57,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 361. [2023-11-19 07:56:57,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 361 states have (on average 1.332409972299169) internal successors, (481), 360 states have internal predecessors, (481), 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 07:56:57,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 481 transitions. [2023-11-19 07:56:57,084 INFO L240 hiAutomatonCegarLoop]: Abstraction has 361 states and 481 transitions. [2023-11-19 07:56:57,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:56:57,089 INFO L428 stractBuchiCegarLoop]: Abstraction has 361 states and 481 transitions. [2023-11-19 07:56:57,089 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-19 07:56:57,090 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 361 states and 481 transitions. [2023-11-19 07:56:57,092 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 248 [2023-11-19 07:56:57,092 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:56:57,093 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:56:57,093 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:56:57,094 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 07:56:57,094 INFO L748 eck$LassoCheckResult]: Stem: 1302#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 1303#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 1088#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1089#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~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 1213#valid_product_returnLabel#1 main_#t~ret27#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1; 1214#L506 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 1170#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet51#1, test_#t~nondet52#1, test_#t~nondet53#1, test_#t~nondet54#1, test_~splverifierCounter~0#1, test_~tmp~11#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~11#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1171#L969-2 [2023-11-19 07:56:57,094 INFO L750 eck$LassoCheckResult]: Loop: 1171#L969-2 assume !false; 1078#L970 assume test_~splverifierCounter~0#1 < 4; 1079#L971 havoc test_#t~nondet51#1;test_~tmp~11#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 1248#L979 assume !(0 != test_~tmp~11#1); 1154#L979-2 havoc test_#t~nondet52#1;test_~tmp___0~3#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1; 1207#L989 assume !(0 != test_~tmp___0~3#1); 1139#L989-2 havoc test_#t~nondet53#1;test_~tmp___2~0#1 := test_#t~nondet53#1;havoc test_#t~nondet53#1; 1140#L999 assume 0 != test_~tmp___2~0#1; 1142#L1005-2 assume { :begin_inline_timeShift } true; 1307#L711 assume !(0 != ~pumpRunning~0); 1163#L711-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret38#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; 1164#L795 assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret40#1, isMethaneAlarm_~retValue_acc~10#1;havoc isMethaneAlarm_~retValue_acc~10#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 1272#isMethaneLevelCritical_returnLabel#1 isMethaneAlarm_#t~ret40#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~10#1 := isMethaneAlarm_#t~ret40#1;havoc isMethaneAlarm_#t~ret40#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~10#1; 1345#isMethaneAlarm_returnLabel#1 processEnvironment_#t~ret38#1 := isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret40#1, isMethaneAlarm_~retValue_acc~10#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~7#1 := processEnvironment_#t~ret38#1;havoc processEnvironment_#t~ret38#1; 1255#L799 assume 0 != processEnvironment_~tmp~7#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; 1167#deactivatePump_returnLabel#2 assume { :end_inline_deactivatePump } true; 1075#L795-1 havoc processEnvironment_#t~ret38#1, processEnvironment_~tmp~7#1;assume { :end_inline_processEnvironment } true; 1076#L718-1 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~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; 1328#getWaterLevel_returnLabel#1 __utac_acc__Specification4_spec__1_#t~ret29#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#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; 1242#L566 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~4#1); 1115#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; 1329#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1171#L969-2 [2023-11-19 07:56:57,095 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:57,095 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2023-11-19 07:56:57,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:56:57,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997606944] [2023-11-19 07:56:57,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:57,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:56:57,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:56:57,106 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:56:57,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:56:57,117 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:56:57,118 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:57,118 INFO L85 PathProgramCache]: Analyzing trace with hash -1369353105, now seen corresponding path program 1 times [2023-11-19 07:56:57,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:56:57,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15202767] [2023-11-19 07:56:57,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:57,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:56:57,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:57,160 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 07:56:57,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:56:57,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15202767] [2023-11-19 07:56:57,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15202767] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:56:57,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:56:57,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:56:57,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029827337] [2023-11-19 07:56:57,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:56:57,162 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-19 07:56:57,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:56:57,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:56:57,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:56:57,164 INFO L87 Difference]: Start difference. First operand 361 states and 481 transitions. cyclomatic complexity: 123 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 07:56:57,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:56:57,281 INFO L93 Difference]: Finished difference Result 363 states and 457 transitions. [2023-11-19 07:56:57,281 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 363 states and 457 transitions. [2023-11-19 07:56:57,286 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 255 [2023-11-19 07:56:57,289 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 363 states to 363 states and 457 transitions. [2023-11-19 07:56:57,290 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 363 [2023-11-19 07:56:57,291 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 363 [2023-11-19 07:56:57,291 INFO L73 IsDeterministic]: Start isDeterministic. Operand 363 states and 457 transitions. [2023-11-19 07:56:57,295 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:56:57,298 INFO L218 hiAutomatonCegarLoop]: Abstraction has 363 states and 457 transitions. [2023-11-19 07:56:57,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states and 457 transitions. [2023-11-19 07:56:57,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 363. [2023-11-19 07:56:57,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 363 states have (on average 1.258953168044077) internal successors, (457), 362 states have internal predecessors, (457), 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 07:56:57,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 457 transitions. [2023-11-19 07:56:57,318 INFO L240 hiAutomatonCegarLoop]: Abstraction has 363 states and 457 transitions. [2023-11-19 07:56:57,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:56:57,320 INFO L428 stractBuchiCegarLoop]: Abstraction has 363 states and 457 transitions. [2023-11-19 07:56:57,320 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-19 07:56:57,320 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 363 states and 457 transitions. [2023-11-19 07:56:57,323 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 255 [2023-11-19 07:56:57,323 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:56:57,323 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:56:57,324 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:56:57,324 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] [2023-11-19 07:56:57,324 INFO L748 eck$LassoCheckResult]: Stem: 1978#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 1979#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 1805#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1806#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~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 1908#valid_product_returnLabel#1 main_#t~ret27#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1; 1909#L506 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 1872#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet51#1, test_#t~nondet52#1, test_#t~nondet53#1, test_#t~nondet54#1, test_~splverifierCounter~0#1, test_~tmp~11#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~11#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1873#L969-2 [2023-11-19 07:56:57,325 INFO L750 eck$LassoCheckResult]: Loop: 1873#L969-2 assume !false; 2027#L970 assume test_~splverifierCounter~0#1 < 4; 2015#L971 havoc test_#t~nondet51#1;test_~tmp~11#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 1932#L979 assume !(0 != test_~tmp~11#1); 1857#L979-2 havoc test_#t~nondet52#1;test_~tmp___0~3#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1; 2103#L989 assume !(0 != test_~tmp___0~3#1); 1843#L989-2 havoc test_#t~nondet53#1;test_~tmp___2~0#1 := test_#t~nondet53#1;havoc test_#t~nondet53#1; 1844#L999 assume 0 != test_~tmp___2~0#1; 1982#L1005-2 assume { :begin_inline_timeShift } true; 1983#L711 assume !(0 != ~pumpRunning~0); 1865#L711-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret38#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; 1866#L795 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret37#1, processEnvironment__wrappee__methaneQuery_~tmp~6#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~6#1; 1950#L769-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret36#1, processEnvironment__wrappee__highWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5#1; 1941#L743-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret49#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~9#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~12#1;havoc isHighWaterLevel_~tmp~9#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 1855#L672-3 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~8#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 1856#isHighWaterSensorDry_returnLabel#4 isHighWaterLevel_#t~ret49#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~9#1 := isHighWaterLevel_#t~ret49#1;havoc isHighWaterLevel_#t~ret49#1; 2013#L914-9 assume 0 != isHighWaterLevel_~tmp~9#1;isHighWaterLevel_~tmp___0~1#1 := 0; 1960#L914-11 isHighWaterLevel_~retValue_acc~12#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1; 1961#isHighWaterLevel_returnLabel#4 processEnvironment__wrappee__highWaterSensor_#t~ret36#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret49#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~9#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~5#1 := processEnvironment__wrappee__highWaterSensor_#t~ret36#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret36#1; 1966#L747-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1924#processEnvironment__wrappee__base_returnLabel#7 assume { :end_inline_processEnvironment__wrappee__base } true; 1775#L743-7 havoc processEnvironment__wrappee__highWaterSensor_#t~ret36#1, processEnvironment__wrappee__highWaterSensor_~tmp~5#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1829#L769-3 havoc processEnvironment__wrappee__methaneQuery_#t~ret37#1, processEnvironment__wrappee__methaneQuery_~tmp~6#1;assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 1794#L795-1 havoc processEnvironment_#t~ret38#1, processEnvironment_~tmp~7#1;assume { :end_inline_processEnvironment } true; 1795#L718-1 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~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; 2008#getWaterLevel_returnLabel#1 __utac_acc__Specification4_spec__1_#t~ret29#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#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; 1927#L566 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~4#1); 1823#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; 2007#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1873#L969-2 [2023-11-19 07:56:57,325 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:57,325 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2023-11-19 07:56:57,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:56:57,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885649936] [2023-11-19 07:56:57,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:57,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:56:57,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:56:57,343 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:56:57,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:56:57,356 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:56:57,357 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:57,357 INFO L85 PathProgramCache]: Analyzing trace with hash 1645274565, now seen corresponding path program 1 times [2023-11-19 07:56:57,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:56:57,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361727129] [2023-11-19 07:56:57,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:57,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:56:57,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:57,452 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 07:56:57,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:56:57,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361727129] [2023-11-19 07:56:57,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361727129] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:56:57,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:56:57,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:56:57,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476752767] [2023-11-19 07:56:57,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:56:57,454 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-19 07:56:57,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:56:57,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:56:57,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:56:57,455 INFO L87 Difference]: Start difference. First operand 363 states and 457 transitions. cyclomatic complexity: 97 Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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 07:56:57,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:56:57,613 INFO L93 Difference]: Finished difference Result 728 states and 898 transitions. [2023-11-19 07:56:57,614 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 728 states and 898 transitions. [2023-11-19 07:56:57,620 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 516 [2023-11-19 07:56:57,626 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 728 states to 728 states and 898 transitions. [2023-11-19 07:56:57,626 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 728 [2023-11-19 07:56:57,627 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 728 [2023-11-19 07:56:57,628 INFO L73 IsDeterministic]: Start isDeterministic. Operand 728 states and 898 transitions. [2023-11-19 07:56:57,629 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:56:57,629 INFO L218 hiAutomatonCegarLoop]: Abstraction has 728 states and 898 transitions. [2023-11-19 07:56:57,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states and 898 transitions. [2023-11-19 07:56:57,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 381. [2023-11-19 07:56:57,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 381 states have (on average 1.246719160104987) internal successors, (475), 380 states have internal predecessors, (475), 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 07:56:57,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 475 transitions. [2023-11-19 07:56:57,648 INFO L240 hiAutomatonCegarLoop]: Abstraction has 381 states and 475 transitions. [2023-11-19 07:56:57,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:56:57,650 INFO L428 stractBuchiCegarLoop]: Abstraction has 381 states and 475 transitions. [2023-11-19 07:56:57,650 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-19 07:56:57,650 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 381 states and 475 transitions. [2023-11-19 07:56:57,653 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 267 [2023-11-19 07:56:57,653 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:56:57,653 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:56:57,654 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:56:57,654 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:56:57,654 INFO L748 eck$LassoCheckResult]: Stem: 3082#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 3083#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 2903#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2904#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~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 3009#valid_product_returnLabel#1 main_#t~ret27#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1; 3010#L506 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 2974#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet51#1, test_#t~nondet52#1, test_#t~nondet53#1, test_#t~nondet54#1, test_~splverifierCounter~0#1, test_~tmp~11#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~11#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2975#L969-2 [2023-11-19 07:56:57,654 INFO L750 eck$LassoCheckResult]: Loop: 2975#L969-2 assume !false; 3226#L970 assume test_~splverifierCounter~0#1 < 4; 3225#L971 havoc test_#t~nondet51#1;test_~tmp~11#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 3223#L979 assume !(0 != test_~tmp~11#1); 3221#L979-2 havoc test_#t~nondet52#1;test_~tmp___0~3#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1; 3219#L989 assume !(0 != test_~tmp___0~3#1); 3217#L989-2 havoc test_#t~nondet53#1;test_~tmp___2~0#1 := test_#t~nondet53#1;havoc test_#t~nondet53#1; 3216#L999 assume 0 != test_~tmp___2~0#1; 3087#L1005-2 assume { :begin_inline_timeShift } true; 3088#L711 assume !(0 != ~pumpRunning~0); 2968#L711-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret38#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; 2969#L795 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret37#1, processEnvironment__wrappee__methaneQuery_~tmp~6#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~6#1; 3054#L769-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret36#1, processEnvironment__wrappee__highWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5#1; 3044#L743-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret49#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~9#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~12#1;havoc isHighWaterLevel_~tmp~9#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 2951#L672-3 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~8#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 2952#isHighWaterSensorDry_returnLabel#4 isHighWaterLevel_#t~ret49#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~9#1 := isHighWaterLevel_#t~ret49#1;havoc isHighWaterLevel_#t~ret49#1; 3121#L914-9 assume !(0 != isHighWaterLevel_~tmp~9#1);isHighWaterLevel_~tmp___0~1#1 := 1; 3063#L914-11 isHighWaterLevel_~retValue_acc~12#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1; 3064#isHighWaterLevel_returnLabel#4 processEnvironment__wrappee__highWaterSensor_#t~ret36#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret49#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~9#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~5#1 := processEnvironment__wrappee__highWaterSensor_#t~ret36#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret36#1; 3070#L747-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 3027#processEnvironment__wrappee__base_returnLabel#7 assume { :end_inline_processEnvironment__wrappee__base } true; 2875#L743-7 havoc processEnvironment__wrappee__highWaterSensor_#t~ret36#1, processEnvironment__wrappee__highWaterSensor_~tmp~5#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 2929#L769-3 havoc processEnvironment__wrappee__methaneQuery_#t~ret37#1, processEnvironment__wrappee__methaneQuery_~tmp~6#1;assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 2892#L795-1 havoc processEnvironment_#t~ret38#1, processEnvironment_~tmp~7#1;assume { :end_inline_processEnvironment } true; 2893#L718-1 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~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; 3232#getWaterLevel_returnLabel#1 __utac_acc__Specification4_spec__1_#t~ret29#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#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; 3230#L566 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~4#1); 3228#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; 3227#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 2975#L969-2 [2023-11-19 07:56:57,655 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:57,655 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2023-11-19 07:56:57,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:56:57,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362423864] [2023-11-19 07:56:57,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:57,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:56:57,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:56:57,664 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:56:57,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:56:57,672 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:56:57,673 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:57,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1058468551, now seen corresponding path program 1 times [2023-11-19 07:56:57,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:56:57,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161860586] [2023-11-19 07:56:57,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:57,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:56:57,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:57,764 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 07:56:57,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:56:57,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161860586] [2023-11-19 07:56:57,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161860586] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:56:57,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:56:57,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:56:57,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117764920] [2023-11-19 07:56:57,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:56:57,770 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-19 07:56:57,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:56:57,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:56:57,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:56:57,771 INFO L87 Difference]: Start difference. First operand 381 states and 475 transitions. cyclomatic complexity: 97 Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 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 07:56:57,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:56:57,993 INFO L93 Difference]: Finished difference Result 704 states and 865 transitions. [2023-11-19 07:56:57,993 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 704 states and 865 transitions. [2023-11-19 07:56:57,999 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 500 [2023-11-19 07:56:58,005 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 704 states to 704 states and 865 transitions. [2023-11-19 07:56:58,006 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 704 [2023-11-19 07:56:58,007 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 704 [2023-11-19 07:56:58,007 INFO L73 IsDeterministic]: Start isDeterministic. Operand 704 states and 865 transitions. [2023-11-19 07:56:58,008 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:56:58,008 INFO L218 hiAutomatonCegarLoop]: Abstraction has 704 states and 865 transitions. [2023-11-19 07:56:58,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 704 states and 865 transitions. [2023-11-19 07:56:58,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 704 to 408. [2023-11-19 07:56:58,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 408 states have (on average 1.2303921568627452) internal successors, (502), 407 states have internal predecessors, (502), 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 07:56:58,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 502 transitions. [2023-11-19 07:56:58,019 INFO L240 hiAutomatonCegarLoop]: Abstraction has 408 states and 502 transitions. [2023-11-19 07:56:58,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:56:58,022 INFO L428 stractBuchiCegarLoop]: Abstraction has 408 states and 502 transitions. [2023-11-19 07:56:58,022 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-11-19 07:56:58,022 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 408 states and 502 transitions. [2023-11-19 07:56:58,025 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 285 [2023-11-19 07:56:58,025 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:56:58,025 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:56:58,026 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:56:58,027 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] [2023-11-19 07:56:58,031 INFO L748 eck$LassoCheckResult]: Stem: 4183#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 4184#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 3999#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 4000#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~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 4105#valid_product_returnLabel#1 main_#t~ret27#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1; 4106#L506 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 4071#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet51#1, test_#t~nondet52#1, test_#t~nondet53#1, test_#t~nondet54#1, test_~splverifierCounter~0#1, test_~tmp~11#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~11#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 4072#L969-2 [2023-11-19 07:56:58,032 INFO L750 eck$LassoCheckResult]: Loop: 4072#L969-2 assume !false; 3994#L970 assume test_~splverifierCounter~0#1 < 4; 3995#L971 havoc test_#t~nondet51#1;test_~tmp~11#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 4135#L979 assume !(0 != test_~tmp~11#1); 4056#L979-2 havoc test_#t~nondet52#1;test_~tmp___0~3#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1; 4100#L989 assume !(0 != test_~tmp___0~3#1); 4041#L989-2 havoc test_#t~nondet53#1;test_~tmp___2~0#1 := test_#t~nondet53#1;havoc test_#t~nondet53#1; 4042#L999 assume 0 != test_~tmp___2~0#1; 4044#L1005-2 assume { :begin_inline_timeShift } true; 4189#L711 assume !(0 != ~pumpRunning~0); 4065#L711-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret38#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; 4066#L795 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret37#1, processEnvironment__wrappee__methaneQuery_~tmp~6#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~6#1; 4153#L769-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret36#1, processEnvironment__wrappee__highWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5#1; 4143#L743-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret49#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~9#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~12#1;havoc isHighWaterLevel_~tmp~9#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 4049#L672-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 4051#isHighWaterSensorDry_returnLabel#4 isHighWaterLevel_#t~ret49#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~9#1 := isHighWaterLevel_#t~ret49#1;havoc isHighWaterLevel_#t~ret49#1; 4243#L914-9 assume 0 != isHighWaterLevel_~tmp~9#1;isHighWaterLevel_~tmp___0~1#1 := 0; 4162#L914-11 isHighWaterLevel_~retValue_acc~12#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1; 4163#isHighWaterLevel_returnLabel#4 processEnvironment__wrappee__highWaterSensor_#t~ret36#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret49#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~9#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~5#1 := processEnvironment__wrappee__highWaterSensor_#t~ret36#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret36#1; 4264#L747-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 4125#processEnvironment__wrappee__base_returnLabel#7 assume { :end_inline_processEnvironment__wrappee__base } true; 3972#L743-7 havoc processEnvironment__wrappee__highWaterSensor_#t~ret36#1, processEnvironment__wrappee__highWaterSensor_~tmp~5#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 4025#L769-3 havoc processEnvironment__wrappee__methaneQuery_#t~ret37#1, processEnvironment__wrappee__methaneQuery_~tmp~6#1;assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 3988#L795-1 havoc processEnvironment_#t~ret38#1, processEnvironment_~tmp~7#1;assume { :end_inline_processEnvironment } true; 3989#L718-1 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~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; 4218#getWaterLevel_returnLabel#1 __utac_acc__Specification4_spec__1_#t~ret29#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#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; 4130#L566 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~4#1); 4019#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; 4219#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 4072#L969-2 [2023-11-19 07:56:58,032 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:58,032 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 5 times [2023-11-19 07:56:58,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:56:58,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327295426] [2023-11-19 07:56:58,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:58,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:56:58,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:56:58,046 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:56:58,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:56:58,053 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:56:58,054 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:58,054 INFO L85 PathProgramCache]: Analyzing trace with hash -1369829053, now seen corresponding path program 1 times [2023-11-19 07:56:58,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:56:58,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328478301] [2023-11-19 07:56:58,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:58,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:56:58,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:56:58,072 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:56:58,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:56:58,092 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:56:58,094 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:58,095 INFO L85 PathProgramCache]: Analyzing trace with hash -1495563777, now seen corresponding path program 1 times [2023-11-19 07:56:58,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:56:58,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96543741] [2023-11-19 07:56:58,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:58,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:56:58,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:56:58,117 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:56:58,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:56:58,146 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:56:59,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:56:59,327 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:56:59,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:56:59,383 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 07:56:59 BoogieIcfgContainer [2023-11-19 07:56:59,383 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-19 07:56:59,384 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:56:59,384 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:56:59,384 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:56:59,385 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:56:55" (3/4) ... [2023-11-19 07:56:59,386 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2023-11-19 07:56:59,437 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8ce10a5-72aa-4ccb-b3c2-11ed1c85e7b9/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 07:56:59,438 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:56:59,439 INFO L158 Benchmark]: Toolchain (without parser) took 5342.23ms. Allocated memory was 136.3MB in the beginning and 163.6MB in the end (delta: 27.3MB). Free memory was 91.4MB in the beginning and 90.0MB in the end (delta: 1.4MB). Peak memory consumption was 29.0MB. Max. memory is 16.1GB. [2023-11-19 07:56:59,439 INFO L158 Benchmark]: CDTParser took 0.69ms. Allocated memory is still 102.8MB. Free memory is still 53.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:56:59,439 INFO L158 Benchmark]: CACSL2BoogieTranslator took 540.81ms. Allocated memory is still 136.3MB. Free memory was 91.4MB in the beginning and 71.7MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-19 07:56:59,440 INFO L158 Benchmark]: Boogie Procedure Inliner took 125.10ms. Allocated memory is still 136.3MB. Free memory was 71.7MB in the beginning and 66.8MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 07:56:59,440 INFO L158 Benchmark]: Boogie Preprocessor took 111.11ms. Allocated memory is still 136.3MB. Free memory was 66.8MB in the beginning and 105.2MB in the end (delta: -38.4MB). Peak memory consumption was 10.2MB. Max. memory is 16.1GB. [2023-11-19 07:56:59,441 INFO L158 Benchmark]: RCFGBuilder took 969.99ms. Allocated memory is still 136.3MB. Free memory was 105.1MB in the beginning and 68.1MB in the end (delta: 37.0MB). Peak memory consumption was 40.6MB. Max. memory is 16.1GB. [2023-11-19 07:56:59,441 INFO L158 Benchmark]: BuchiAutomizer took 3535.22ms. Allocated memory was 136.3MB in the beginning and 163.6MB in the end (delta: 27.3MB). Free memory was 68.1MB in the beginning and 93.1MB in the end (delta: -24.9MB). Peak memory consumption was 3.4MB. Max. memory is 16.1GB. [2023-11-19 07:56:59,442 INFO L158 Benchmark]: Witness Printer took 54.37ms. Allocated memory is still 163.6MB. Free memory was 93.1MB in the beginning and 90.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:56:59,444 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.69ms. Allocated memory is still 102.8MB. Free memory is still 53.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 540.81ms. Allocated memory is still 136.3MB. Free memory was 91.4MB in the beginning and 71.7MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 125.10ms. Allocated memory is still 136.3MB. Free memory was 71.7MB in the beginning and 66.8MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 111.11ms. Allocated memory is still 136.3MB. Free memory was 66.8MB in the beginning and 105.2MB in the end (delta: -38.4MB). Peak memory consumption was 10.2MB. Max. memory is 16.1GB. * RCFGBuilder took 969.99ms. Allocated memory is still 136.3MB. Free memory was 105.1MB in the beginning and 68.1MB in the end (delta: 37.0MB). Peak memory consumption was 40.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 3535.22ms. Allocated memory was 136.3MB in the beginning and 163.6MB in the end (delta: 27.3MB). Free memory was 68.1MB in the beginning and 93.1MB in the end (delta: -24.9MB). Peak memory consumption was 3.4MB. Max. memory is 16.1GB. * Witness Printer took 54.37ms. Allocated memory is still 163.6MB. Free memory was 93.1MB in the beginning and 90.0MB 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,"libacc.i","") [49] - GenericResultAtLocation [Line: 415]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [415] - GenericResultAtLocation [Line: 519]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [519] - 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,"Environment.i","") [583] - GenericResultAtLocation [Line: 691]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [691] - GenericResultAtLocation [Line: 700]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [700] - GenericResultAtLocation [Line: 958]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [958] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (4 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.4 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 408 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.4s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 2.3s. Construction of modules took 0.3s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 0. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 947 StatesRemovedByMinimization, 3 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, 2852 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2852 mSDsluCounter, 5097 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3390 mSDsCounter, 109 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 373 IncrementalHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 109 mSolverCounterUnsat, 1707 mSDtfsCounter, 373 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI3 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: 969]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L416] int cleanupTimeShifts = 4; [L589] int waterLevel = 1; [L590] int methaneLevelCritical = 0; [L704] int pumpRunning = 0; [L705] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L497] int retValue_acc ; [L498] int tmp ; [L502] FCALL select_helpers() [L503] FCALL select_features() [L504] CALL, EXPR valid_product() [L546] int retValue_acc ; [L549] retValue_acc = 1 [L550] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L504] RET, EXPR valid_product() [L504] tmp = valid_product() [L506] COND TRUE \read(tmp) [L508] FCALL setup() [L509] CALL runTest() [L488] CALL test() [L960] int splverifierCounter ; [L961] int tmp ; [L962] int tmp___0 ; [L963] int tmp___1 ; [L964] int tmp___2 ; [L967] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L969] COND TRUE 1 [L971] COND TRUE splverifierCounter < 4 [L977] tmp = __VERIFIER_nondet_int() [L979] COND FALSE !(\read(tmp)) [L987] tmp___0 = __VERIFIER_nondet_int() [L989] COND FALSE !(\read(tmp___0)) [L997] tmp___2 = __VERIFIER_nondet_int() [L999] COND TRUE \read(tmp___2) [L1014] CALL timeShift() [L711] COND FALSE !(\read(pumpRunning)) [L718] COND TRUE \read(systemActive) [L720] CALL processEnvironment() [L792] int tmp ; [L795] COND FALSE !(\read(pumpRunning)) [L810] CALL processEnvironment__wrappee__methaneQuery() [L766] int tmp ; [L769] COND FALSE !(\read(pumpRunning)) [L784] CALL processEnvironment__wrappee__highWaterSensor() [L740] int tmp ; [L743] COND TRUE ! pumpRunning [L745] CALL, EXPR isHighWaterLevel() [L906] int retValue_acc ; [L907] int tmp ; [L908] int tmp___0 ; [L912] CALL, EXPR isHighWaterSensorDry() [L669] int retValue_acc ; [L672] COND TRUE waterLevel < 2 [L673] retValue_acc = 1 [L674] return (retValue_acc); [L912] RET, EXPR isHighWaterSensorDry() [L912] tmp = isHighWaterSensorDry() [L914] COND TRUE \read(tmp) [L915] tmp___0 = 0 [L919] retValue_acc = tmp___0 [L920] return (retValue_acc); [L745] RET, EXPR isHighWaterLevel() [L745] tmp = isHighWaterLevel() [L747] COND FALSE !(\read(tmp)) [L753] FCALL processEnvironment__wrappee__base() [L784] RET processEnvironment__wrappee__highWaterSensor() [L810] RET processEnvironment__wrappee__methaneQuery() [L720] RET processEnvironment() [L726] CALL __utac_acc__Specification4_spec__1() [L559] int tmp ; [L560] int tmp___0 ; [L564] CALL, EXPR getWaterLevel() [L660] int retValue_acc ; [L663] retValue_acc = waterLevel [L664] return (retValue_acc); [L564] RET, EXPR getWaterLevel() [L564] tmp = getWaterLevel() [L566] COND FALSE !(tmp == 0) [L726] RET __utac_acc__Specification4_spec__1() [L1014] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 969]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L416] int cleanupTimeShifts = 4; [L589] int waterLevel = 1; [L590] int methaneLevelCritical = 0; [L704] int pumpRunning = 0; [L705] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L497] int retValue_acc ; [L498] int tmp ; [L502] FCALL select_helpers() [L503] FCALL select_features() [L504] CALL, EXPR valid_product() [L546] int retValue_acc ; [L549] retValue_acc = 1 [L550] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L504] RET, EXPR valid_product() [L504] tmp = valid_product() [L506] COND TRUE \read(tmp) [L508] FCALL setup() [L509] CALL runTest() [L488] CALL test() [L960] int splverifierCounter ; [L961] int tmp ; [L962] int tmp___0 ; [L963] int tmp___1 ; [L964] int tmp___2 ; [L967] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L969] COND TRUE 1 [L971] COND TRUE splverifierCounter < 4 [L977] tmp = __VERIFIER_nondet_int() [L979] COND FALSE !(\read(tmp)) [L987] tmp___0 = __VERIFIER_nondet_int() [L989] COND FALSE !(\read(tmp___0)) [L997] tmp___2 = __VERIFIER_nondet_int() [L999] COND TRUE \read(tmp___2) [L1014] CALL timeShift() [L711] COND FALSE !(\read(pumpRunning)) [L718] COND TRUE \read(systemActive) [L720] CALL processEnvironment() [L792] int tmp ; [L795] COND FALSE !(\read(pumpRunning)) [L810] CALL processEnvironment__wrappee__methaneQuery() [L766] int tmp ; [L769] COND FALSE !(\read(pumpRunning)) [L784] CALL processEnvironment__wrappee__highWaterSensor() [L740] int tmp ; [L743] COND TRUE ! pumpRunning [L745] CALL, EXPR isHighWaterLevel() [L906] int retValue_acc ; [L907] int tmp ; [L908] int tmp___0 ; [L912] CALL, EXPR isHighWaterSensorDry() [L669] int retValue_acc ; [L672] COND TRUE waterLevel < 2 [L673] retValue_acc = 1 [L674] return (retValue_acc); [L912] RET, EXPR isHighWaterSensorDry() [L912] tmp = isHighWaterSensorDry() [L914] COND TRUE \read(tmp) [L915] tmp___0 = 0 [L919] retValue_acc = tmp___0 [L920] return (retValue_acc); [L745] RET, EXPR isHighWaterLevel() [L745] tmp = isHighWaterLevel() [L747] COND FALSE !(\read(tmp)) [L753] FCALL processEnvironment__wrappee__base() [L784] RET processEnvironment__wrappee__highWaterSensor() [L810] RET processEnvironment__wrappee__methaneQuery() [L720] RET processEnvironment() [L726] CALL __utac_acc__Specification4_spec__1() [L559] int tmp ; [L560] int tmp___0 ; [L564] CALL, EXPR getWaterLevel() [L660] int retValue_acc ; [L663] retValue_acc = waterLevel [L664] return (retValue_acc); [L564] RET, EXPR getWaterLevel() [L564] tmp = getWaterLevel() [L566] COND FALSE !(tmp == 0) [L726] RET __utac_acc__Specification4_spec__1() [L1014] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2023-11-19 07:56:59,508 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8ce10a5-72aa-4ccb-b3c2-11ed1c85e7b9/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)