./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product62.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f84c6f8-f9cf-42fe-ae5c-51c807ee2ab8/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f84c6f8-f9cf-42fe-ae5c-51c807ee2ab8/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f84c6f8-f9cf-42fe-ae5c-51c807ee2ab8/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f84c6f8-f9cf-42fe-ae5c-51c807ee2ab8/bin/uautomizer-verify-bycVGegfSx/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product62.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f84c6f8-f9cf-42fe-ae5c-51c807ee2ab8/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f84c6f8-f9cf-42fe-ae5c-51c807ee2ab8/bin/uautomizer-verify-bycVGegfSx --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 592117a566b45deb7ab0407540eecbf2be0f732724f0529483f85e7a6864867a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:27:24,699 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:27:24,813 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f84c6f8-f9cf-42fe-ae5c-51c807ee2ab8/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-21 22:27:24,824 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:27:24,825 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:27:24,865 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:27:24,865 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:27:24,866 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:27:24,867 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:27:24,872 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:27:24,873 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:27:24,873 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:27:24,874 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:27:24,876 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-21 22:27:24,876 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-21 22:27:24,877 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-21 22:27:24,877 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-21 22:27:24,878 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-21 22:27:24,878 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-21 22:27:24,879 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:27:24,879 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-21 22:27:24,880 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:27:24,880 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:27:24,880 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:27:24,881 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:27:24,881 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-21 22:27:24,882 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-21 22:27:24,882 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-21 22:27:24,882 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:27:24,883 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:27:24,884 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:27:24,884 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-21 22:27:24,885 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:27:24,885 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:27:24,885 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:27:24,885 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:27:24,886 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:27:24,886 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-21 22:27:24,886 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_5f84c6f8-f9cf-42fe-ae5c-51c807ee2ab8/bin/uautomizer-verify-bycVGegfSx/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f84c6f8-f9cf-42fe-ae5c-51c807ee2ab8/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 592117a566b45deb7ab0407540eecbf2be0f732724f0529483f85e7a6864867a [2023-11-21 22:27:25,211 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:27:25,245 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:27:25,247 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:27:25,249 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:27:25,249 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:27:25,251 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f84c6f8-f9cf-42fe-ae5c-51c807ee2ab8/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/product-lines/minepump_spec1_product62.cil.c [2023-11-21 22:27:28,332 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:27:28,649 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:27:28,658 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f84c6f8-f9cf-42fe-ae5c-51c807ee2ab8/sv-benchmarks/c/product-lines/minepump_spec1_product62.cil.c [2023-11-21 22:27:28,678 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f84c6f8-f9cf-42fe-ae5c-51c807ee2ab8/bin/uautomizer-verify-bycVGegfSx/data/d3c8eb0b6/c4474847e4ae43ddba9123717f2f093d/FLAG49b4c3de2 [2023-11-21 22:27:28,698 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f84c6f8-f9cf-42fe-ae5c-51c807ee2ab8/bin/uautomizer-verify-bycVGegfSx/data/d3c8eb0b6/c4474847e4ae43ddba9123717f2f093d [2023-11-21 22:27:28,703 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:27:28,706 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:27:28,710 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:27:28,710 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:27:28,716 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:27:28,717 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:27:28" (1/1) ... [2023-11-21 22:27:28,718 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71c5cd54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:27:28, skipping insertion in model container [2023-11-21 22:27:28,718 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:27:28" (1/1) ... [2023-11-21 22:27:28,793 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:27:29,084 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:27:29,099 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:27:29,107 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [49] [2023-11-21 22:27:29,109 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [309] [2023-11-21 22:27:29,110 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [379] [2023-11-21 22:27:29,110 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [417] [2023-11-21 22:27:29,110 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [783] [2023-11-21 22:27:29,110 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [879] [2023-11-21 22:27:29,111 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [983] [2023-11-21 22:27:29,111 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1010] [2023-11-21 22:27:29,182 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:27:29,206 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:27:29,206 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:27:29 WrapperNode [2023-11-21 22:27:29,206 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:27:29,208 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:27:29,208 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:27:29,208 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:27:29,216 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:27:29" (1/1) ... [2023-11-21 22:27:29,231 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:27:29" (1/1) ... [2023-11-21 22:27:29,291 INFO L138 Inliner]: procedures = 58, calls = 106, calls flagged for inlining = 59, calls inlined = 177, statements flattened = 1206 [2023-11-21 22:27:29,291 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:27:29,292 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:27:29,292 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:27:29,293 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:27:29,313 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:27:29" (1/1) ... [2023-11-21 22:27:29,313 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:27:29" (1/1) ... [2023-11-21 22:27:29,321 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:27:29" (1/1) ... [2023-11-21 22:27:29,355 INFO L187 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-21 22:27:29,355 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:27:29" (1/1) ... [2023-11-21 22:27:29,356 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:27:29" (1/1) ... [2023-11-21 22:27:29,380 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:27:29" (1/1) ... [2023-11-21 22:27:29,391 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:27:29" (1/1) ... [2023-11-21 22:27:29,394 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:27:29" (1/1) ... [2023-11-21 22:27:29,399 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:27:29" (1/1) ... [2023-11-21 22:27:29,406 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:27:29,407 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:27:29,408 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:27:29,408 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:27:29,409 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:27:29" (1/1) ... [2023-11-21 22:27:29,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:27:29,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f84c6f8-f9cf-42fe-ae5c-51c807ee2ab8/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:27:29,450 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f84c6f8-f9cf-42fe-ae5c-51c807ee2ab8/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:27:29,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f84c6f8-f9cf-42fe-ae5c-51c807ee2ab8/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-21 22:27:29,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:27:29,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 22:27:29,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:27:29,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:27:29,583 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:27:29,586 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:27:30,361 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:27:30,388 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:27:30,388 INFO L308 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-21 22:27:30,390 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:27:30 BoogieIcfgContainer [2023-11-21 22:27:30,390 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:27:30,391 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-21 22:27:30,391 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-21 22:27:30,401 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-21 22:27:30,402 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-21 22:27:30,402 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.11 10:27:28" (1/3) ... [2023-11-21 22:27:30,404 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3308d4de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 10:27:30, skipping insertion in model container [2023-11-21 22:27:30,405 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-21 22:27:30,405 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:27:29" (2/3) ... [2023-11-21 22:27:30,407 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3308d4de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 10:27:30, skipping insertion in model container [2023-11-21 22:27:30,408 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-21 22:27:30,408 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:27:30" (3/3) ... [2023-11-21 22:27:30,410 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product62.cil.c [2023-11-21 22:27:30,474 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-21 22:27:30,475 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-21 22:27:30,475 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-21 22:27:30,475 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-21 22:27:30,475 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-21 22:27:30,475 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-21 22:27:30,475 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-21 22:27:30,476 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-21 22:27:30,482 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 322 states, 321 states have (on average 1.3489096573208723) internal successors, (433), 321 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:27:30,521 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 211 [2023-11-21 22:27:30,521 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 22:27:30,521 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 22:27:30,529 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:27:30,529 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:27:30,529 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-21 22:27:30,531 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 322 states, 321 states have (on average 1.3489096573208723) internal successors, (433), 321 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:27:30,544 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 211 [2023-11-21 22:27:30,544 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 22:27:30,545 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 22:27:30,546 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:27:30,546 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:27:30,552 INFO L748 eck$LassoCheckResult]: Stem: 177#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 192#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret47#1, main_~retValue_acc~9#1, main_~tmp~10#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 30#select_helpers_returnLabel#1true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 288#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; 105#valid_product_returnLabel#1true main_#t~ret47#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret47#1;havoc main_#t~ret47#1; 158#L866true assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 81#setup_returnLabel#1true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet19#1, test_#t~nondet20#1, test_#t~nondet21#1, test_#t~nondet22#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 219#L323-2true [2023-11-21 22:27:30,553 INFO L750 eck$LassoCheckResult]: Loop: 219#L323-2true assume !false; 20#L324true assume test_~splverifierCounter~0#1 < 4; 238#L325true havoc test_#t~nondet19#1;test_~tmp~6#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 228#L333true assume !(0 != test_~tmp~6#1); 247#L333-2true havoc test_#t~nondet20#1;test_~tmp___0~2#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; 271#L343true assume !(0 != test_~tmp___0~2#1); 67#L343-2true havoc test_#t~nondet21#1;test_~tmp___2~0#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; 109#L353true assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet22#1;test_~tmp___1~0#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 253#L361true assume 0 != test_~tmp___1~0#1; 287#L361-2true assume { :begin_inline_timeShift } true; 19#L69true assume !(0 != ~pumpRunning~0); 282#L69-2true assume !(0 != ~systemActive~0); 302#L76-1true assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret53#1, __utac_acc__Specification1_spec__1_#t~ret54#1, __utac_acc__Specification1_spec__1_~tmp~11#1, __utac_acc__Specification1_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification1_spec__1_~tmp~11#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;isMethaneLevelCritical_~retValue_acc~10#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~10#1; 314#isMethaneLevelCritical_returnLabel#6true __utac_acc__Specification1_spec__1_#t~ret53#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~11#1 := __utac_acc__Specification1_spec__1_#t~ret53#1;havoc __utac_acc__Specification1_spec__1_#t~ret53#1; 210#L993true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~11#1); 125#L993-1true havoc __utac_acc__Specification1_spec__1_#t~ret53#1, __utac_acc__Specification1_spec__1_#t~ret54#1, __utac_acc__Specification1_spec__1_~tmp~11#1, __utac_acc__Specification1_spec__1_~tmp___0~3#1;assume { :end_inline___utac_acc__Specification1_spec__1 } true; 227#timeShift_returnLabel#1true assume { :end_inline_timeShift } true; 219#L323-2true [2023-11-21 22:27:30,559 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:27:30,559 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2023-11-21 22:27:30,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:27:30,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313132039] [2023-11-21 22:27:30,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:27:30,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:27:30,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:27:30,683 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:27:30,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:27:30,720 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:27:30,723 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:27:30,723 INFO L85 PathProgramCache]: Analyzing trace with hash -1723983036, now seen corresponding path program 1 times [2023-11-21 22:27:30,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:27:30,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873761910] [2023-11-21 22:27:30,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:27:30,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:27:30,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:27:30,734 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:27:30,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:27:30,744 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:27:30,746 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:27:30,746 INFO L85 PathProgramCache]: Analyzing trace with hash 1639302656, now seen corresponding path program 1 times [2023-11-21 22:27:30,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:27:30,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747791434] [2023-11-21 22:27:30,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:27:30,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:27:30,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:27:30,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:27:30,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:27:30,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747791434] [2023-11-21 22:27:30,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747791434] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:27:30,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:27:30,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:27:30,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789346590] [2023-11-21 22:27:30,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:27:31,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:27:31,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:27:31,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:27:31,132 INFO L87 Difference]: Start difference. First operand has 322 states, 321 states have (on average 1.3489096573208723) internal successors, (433), 321 states have internal predecessors, (433), 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 4.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:27:31,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:27:31,220 INFO L93 Difference]: Finished difference Result 316 states and 416 transitions. [2023-11-21 22:27:31,221 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 316 states and 416 transitions. [2023-11-21 22:27:31,226 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 205 [2023-11-21 22:27:31,234 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 316 states to 306 states and 406 transitions. [2023-11-21 22:27:31,235 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 306 [2023-11-21 22:27:31,236 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 306 [2023-11-21 22:27:31,237 INFO L73 IsDeterministic]: Start isDeterministic. Operand 306 states and 406 transitions. [2023-11-21 22:27:31,239 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:27:31,239 INFO L218 hiAutomatonCegarLoop]: Abstraction has 306 states and 406 transitions. [2023-11-21 22:27:31,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states and 406 transitions. [2023-11-21 22:27:31,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 306. [2023-11-21 22:27:31,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 306 states have (on average 1.326797385620915) internal successors, (406), 305 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:27:31,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 406 transitions. [2023-11-21 22:27:31,287 INFO L240 hiAutomatonCegarLoop]: Abstraction has 306 states and 406 transitions. [2023-11-21 22:27:31,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 22:27:31,292 INFO L428 stractBuchiCegarLoop]: Abstraction has 306 states and 406 transitions. [2023-11-21 22:27:31,292 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-21 22:27:31,292 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 306 states and 406 transitions. [2023-11-21 22:27:31,295 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 205 [2023-11-21 22:27:31,295 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 22:27:31,296 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 22:27:31,297 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:27:31,297 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] [2023-11-21 22:27:31,297 INFO L748 eck$LassoCheckResult]: Stem: 905#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 906#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret47#1, main_~retValue_acc~9#1, main_~tmp~10#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 717#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 718#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; 838#valid_product_returnLabel#1 main_#t~ret47#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret47#1;havoc main_#t~ret47#1; 839#L866 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 800#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet19#1, test_#t~nondet20#1, test_#t~nondet21#1, test_#t~nondet22#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 801#L323-2 [2023-11-21 22:27:31,297 INFO L750 eck$LassoCheckResult]: Loop: 801#L323-2 assume !false; 697#L324 assume test_~splverifierCounter~0#1 < 4; 698#L325 havoc test_#t~nondet19#1;test_~tmp~6#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 939#L333 assume !(0 != test_~tmp~6#1); 940#L333-2 havoc test_#t~nondet20#1;test_~tmp___0~2#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; 948#L343 assume !(0 != test_~tmp___0~2#1); 691#L343-2 havoc test_#t~nondet21#1;test_~tmp___2~0#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; 784#L353 assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet22#1;test_~tmp___1~0#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 841#L361 assume 0 != test_~tmp___1~0#1; 780#L361-2 assume { :begin_inline_timeShift } true; 694#L69 assume !(0 != ~pumpRunning~0); 695#L69-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret6#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 687#L153 assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret8#1, isMethaneAlarm_~retValue_acc~0#1;havoc isMethaneAlarm_~retValue_acc~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;isMethaneLevelCritical_~retValue_acc~10#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~10#1; 689#isMethaneLevelCritical_returnLabel#1 isMethaneAlarm_#t~ret8#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~0#1 := isMethaneAlarm_#t~ret8#1;havoc isMethaneAlarm_#t~ret8#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~0#1; 958#isMethaneAlarm_returnLabel#1 processEnvironment_#t~ret6#1 := isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret8#1, isMethaneAlarm_~retValue_acc~0#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~2#1 := processEnvironment_#t~ret6#1;havoc processEnvironment_#t~ret6#1; 680#L157 assume 0 != processEnvironment_~tmp~2#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; 681#deactivatePump_returnLabel#1 assume { :end_inline_deactivatePump } true; 827#L153-1 havoc processEnvironment_#t~ret6#1, processEnvironment_~tmp~2#1;assume { :end_inline_processEnvironment } true; 828#L76-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret53#1, __utac_acc__Specification1_spec__1_#t~ret54#1, __utac_acc__Specification1_spec__1_~tmp~11#1, __utac_acc__Specification1_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification1_spec__1_~tmp~11#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;isMethaneLevelCritical_~retValue_acc~10#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~10#1; 959#isMethaneLevelCritical_returnLabel#6 __utac_acc__Specification1_spec__1_#t~ret53#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~11#1 := __utac_acc__Specification1_spec__1_#t~ret53#1;havoc __utac_acc__Specification1_spec__1_#t~ret53#1; 930#L993 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~11#1); 863#L993-1 havoc __utac_acc__Specification1_spec__1_#t~ret53#1, __utac_acc__Specification1_spec__1_#t~ret54#1, __utac_acc__Specification1_spec__1_~tmp~11#1, __utac_acc__Specification1_spec__1_~tmp___0~3#1;assume { :end_inline___utac_acc__Specification1_spec__1 } true; 864#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 801#L323-2 [2023-11-21 22:27:31,298 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:27:31,298 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2023-11-21 22:27:31,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:27:31,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831935373] [2023-11-21 22:27:31,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:27:31,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:27:31,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:27:31,310 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:27:31,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:27:31,323 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:27:31,323 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:27:31,324 INFO L85 PathProgramCache]: Analyzing trace with hash 1940286733, now seen corresponding path program 1 times [2023-11-21 22:27:31,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:27:31,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779934735] [2023-11-21 22:27:31,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:27:31,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:27:31,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:27:31,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:27:31,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:27:31,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779934735] [2023-11-21 22:27:31,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779934735] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:27:31,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:27:31,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:27:31,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418357905] [2023-11-21 22:27:31,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:27:31,353 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-21 22:27:31,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:27:31,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:27:31,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:27:31,354 INFO L87 Difference]: Start difference. First operand 306 states and 406 transitions. cyclomatic complexity: 102 Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:27:31,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:27:31,456 INFO L93 Difference]: Finished difference Result 314 states and 394 transitions. [2023-11-21 22:27:31,456 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 314 states and 394 transitions. [2023-11-21 22:27:31,460 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 216 [2023-11-21 22:27:31,463 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 314 states to 314 states and 394 transitions. [2023-11-21 22:27:31,464 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 314 [2023-11-21 22:27:31,464 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 314 [2023-11-21 22:27:31,465 INFO L73 IsDeterministic]: Start isDeterministic. Operand 314 states and 394 transitions. [2023-11-21 22:27:31,466 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:27:31,467 INFO L218 hiAutomatonCegarLoop]: Abstraction has 314 states and 394 transitions. [2023-11-21 22:27:31,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states and 394 transitions. [2023-11-21 22:27:31,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 314. [2023-11-21 22:27:31,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 314 states have (on average 1.2547770700636942) internal successors, (394), 313 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:27:31,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 394 transitions. [2023-11-21 22:27:31,482 INFO L240 hiAutomatonCegarLoop]: Abstraction has 314 states and 394 transitions. [2023-11-21 22:27:31,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:27:31,483 INFO L428 stractBuchiCegarLoop]: Abstraction has 314 states and 394 transitions. [2023-11-21 22:27:31,483 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-21 22:27:31,484 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 314 states and 394 transitions. [2023-11-21 22:27:31,494 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 216 [2023-11-21 22:27:31,495 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 22:27:31,495 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 22:27:31,496 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:27:31,496 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:27:31,497 INFO L748 eck$LassoCheckResult]: Stem: 1479#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 1480#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret47#1, main_~retValue_acc~9#1, main_~tmp~10#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 1320#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1321#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; 1418#valid_product_returnLabel#1 main_#t~ret47#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret47#1;havoc main_#t~ret47#1; 1419#L866 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 1387#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet19#1, test_#t~nondet20#1, test_#t~nondet21#1, test_#t~nondet22#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1388#L323-2 [2023-11-21 22:27:31,497 INFO L750 eck$LassoCheckResult]: Loop: 1388#L323-2 assume !false; 1306#L324 assume test_~splverifierCounter~0#1 < 4; 1307#L325 havoc test_#t~nondet19#1;test_~tmp~6#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 1512#L333 assume !(0 != test_~tmp~6#1); 1513#L333-2 havoc test_#t~nondet20#1;test_~tmp___0~2#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; 1523#L343 assume !(0 != test_~tmp___0~2#1); 1303#L343-2 havoc test_#t~nondet21#1;test_~tmp___2~0#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; 1375#L353 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 1369#startSystem_returnLabel#1 assume { :end_inline_startSystem } true; 1370#L361-2 assume { :begin_inline_timeShift } true; 1304#L69 assume !(0 != ~pumpRunning~0); 1305#L69-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret6#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 1300#L153 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret5#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1#1; 1301#L127-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; 1511#L101-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret17#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~12#1;havoc isHighWaterSensorDry_~retValue_acc~12#1; 1330#L964-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~12#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~12#1; 1331#isHighWaterSensorDry_returnLabel#4 isHighWaterLevel_#t~ret17#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~12#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret17#1;havoc isHighWaterLevel_#t~ret17#1; 1531#L272-9 assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~0#1 := 0; 1501#L272-11 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 1496#isHighWaterLevel_returnLabel#4 processEnvironment__wrappee__highWaterSensor_#t~ret4#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret17#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~0#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret4#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1; 1497#L105-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1434#processEnvironment__wrappee__base_returnLabel#7 assume { :end_inline_processEnvironment__wrappee__base } true; 1282#L101-7 havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1283#L127-3 havoc processEnvironment__wrappee__methaneQuery_#t~ret5#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 1409#L153-1 havoc processEnvironment_#t~ret6#1, processEnvironment_~tmp~2#1;assume { :end_inline_processEnvironment } true; 1410#L76-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret53#1, __utac_acc__Specification1_spec__1_#t~ret54#1, __utac_acc__Specification1_spec__1_~tmp~11#1, __utac_acc__Specification1_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification1_spec__1_~tmp~11#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;isMethaneLevelCritical_~retValue_acc~10#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~10#1; 1538#isMethaneLevelCritical_returnLabel#6 __utac_acc__Specification1_spec__1_#t~ret53#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~11#1 := __utac_acc__Specification1_spec__1_#t~ret53#1;havoc __utac_acc__Specification1_spec__1_#t~ret53#1; 1504#L993 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~11#1); 1435#L993-1 havoc __utac_acc__Specification1_spec__1_#t~ret53#1, __utac_acc__Specification1_spec__1_#t~ret54#1, __utac_acc__Specification1_spec__1_~tmp~11#1, __utac_acc__Specification1_spec__1_~tmp___0~3#1;assume { :end_inline___utac_acc__Specification1_spec__1 } true; 1436#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1388#L323-2 [2023-11-21 22:27:31,498 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:27:31,498 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2023-11-21 22:27:31,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:27:31,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124931281] [2023-11-21 22:27:31,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:27:31,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:27:31,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:27:31,526 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:27:31,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:27:31,543 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:27:31,543 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:27:31,544 INFO L85 PathProgramCache]: Analyzing trace with hash -448143331, now seen corresponding path program 1 times [2023-11-21 22:27:31,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:27:31,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638729674] [2023-11-21 22:27:31,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:27:31,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:27:31,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:27:31,552 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:27:31,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:27:31,562 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:27:31,563 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:27:31,563 INFO L85 PathProgramCache]: Analyzing trace with hash -50952479, now seen corresponding path program 1 times [2023-11-21 22:27:31,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:27:31,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192324271] [2023-11-21 22:27:31,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:27:31,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:27:31,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:27:31,576 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:27:31,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:27:31,593 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:27:32,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:27:32,783 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:27:32,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:27:32,858 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.11 10:27:32 BoogieIcfgContainer [2023-11-21 22:27:32,858 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-21 22:27:32,859 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 22:27:32,859 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 22:27:32,860 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 22:27:32,861 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:27:30" (3/4) ... [2023-11-21 22:27:32,862 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2023-11-21 22:27:32,951 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f84c6f8-f9cf-42fe-ae5c-51c807ee2ab8/bin/uautomizer-verify-bycVGegfSx/witness.graphml [2023-11-21 22:27:32,951 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 22:27:32,952 INFO L158 Benchmark]: Toolchain (without parser) took 4245.45ms. Allocated memory is still 199.2MB. Free memory was 152.7MB in the beginning and 149.1MB in the end (delta: 3.6MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. [2023-11-21 22:27:32,953 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 134.2MB. Free memory is still 78.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:27:32,953 INFO L158 Benchmark]: CACSL2BoogieTranslator took 497.10ms. Allocated memory is still 199.2MB. Free memory was 152.4MB in the beginning and 132.6MB in the end (delta: 19.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-21 22:27:32,954 INFO L158 Benchmark]: Boogie Procedure Inliner took 84.10ms. Allocated memory is still 199.2MB. Free memory was 132.6MB in the beginning and 127.5MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 22:27:32,954 INFO L158 Benchmark]: Boogie Preprocessor took 114.41ms. Allocated memory is still 199.2MB. Free memory was 127.5MB in the beginning and 122.1MB in the end (delta: 5.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-21 22:27:32,954 INFO L158 Benchmark]: RCFGBuilder took 982.59ms. Allocated memory is still 199.2MB. Free memory was 121.2MB in the beginning and 81.1MB in the end (delta: 40.2MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2023-11-21 22:27:32,955 INFO L158 Benchmark]: BuchiAutomizer took 2467.51ms. Allocated memory is still 199.2MB. Free memory was 81.1MB in the beginning and 153.3MB in the end (delta: -72.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:27:32,955 INFO L158 Benchmark]: Witness Printer took 91.90ms. Allocated memory is still 199.2MB. Free memory was 153.3MB in the beginning and 149.1MB in the end (delta: 4.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:27:32,957 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 134.2MB. Free memory is still 78.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 497.10ms. Allocated memory is still 199.2MB. Free memory was 152.4MB in the beginning and 132.6MB in the end (delta: 19.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 84.10ms. Allocated memory is still 199.2MB. Free memory was 132.6MB in the beginning and 127.5MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 114.41ms. Allocated memory is still 199.2MB. Free memory was 127.5MB in the beginning and 122.1MB in the end (delta: 5.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 982.59ms. Allocated memory is still 199.2MB. Free memory was 121.2MB in the beginning and 81.1MB in the end (delta: 40.2MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 2467.51ms. Allocated memory is still 199.2MB. Free memory was 81.1MB in the beginning and 153.3MB in the end (delta: -72.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 91.90ms. Allocated memory is still 199.2MB. Free memory was 153.3MB in the beginning and 149.1MB in the end (delta: 4.2MB). 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,"MinePump.i","") [49] - GenericResultAtLocation [Line: 309]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [309] - GenericResultAtLocation [Line: 379]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [379] - GenericResultAtLocation [Line: 417]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [417] - GenericResultAtLocation [Line: 783]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [783] - GenericResultAtLocation [Line: 879]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [879] - GenericResultAtLocation [Line: 983]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [983] - GenericResultAtLocation [Line: 1010]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1010] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 314 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.3s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 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, 1456 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1456 mSDsluCounter, 834 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 131 mSDsCounter, 39 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 51 IncrementalHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 39 mSolverCounterUnsat, 703 mSDtfsCounter, 51 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 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: 323]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L61] int pumpRunning = 0; [L62] int systemActive = 1; [L587] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L784] int cleanupTimeShifts = 4; [L881] int waterLevel = 1; [L882] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L857] int retValue_acc ; [L858] int tmp ; [L862] FCALL select_helpers() [L863] FCALL select_features() [L864] CALL, EXPR valid_product() [L409] int retValue_acc ; [L412] retValue_acc = 1 [L413] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L864] RET, EXPR valid_product() [L864] tmp = valid_product() [L866] COND TRUE \read(tmp) [L868] FCALL setup() [L869] CALL runTest() [L851] CALL test() [L314] int splverifierCounter ; [L315] int tmp ; [L316] int tmp___0 ; [L317] int tmp___1 ; [L318] int tmp___2 ; [L321] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L323] COND TRUE 1 [L325] COND TRUE splverifierCounter < 4 [L331] tmp = __VERIFIER_nondet_int() [L333] COND FALSE !(\read(tmp)) [L341] tmp___0 = __VERIFIER_nondet_int() [L343] COND FALSE !(\read(tmp___0)) [L351] tmp___2 = __VERIFIER_nondet_int() [L353] COND TRUE \read(tmp___2) [L355] CALL startSystem() [L305] systemActive = 1 [L355] RET startSystem() [L368] CALL timeShift() [L69] COND FALSE !(\read(pumpRunning)) [L76] COND TRUE \read(systemActive) [L78] CALL processEnvironment() [L150] int tmp ; [L153] COND FALSE !(\read(pumpRunning)) [L168] CALL processEnvironment__wrappee__methaneQuery() [L124] int tmp ; [L127] COND FALSE !(\read(pumpRunning)) [L142] CALL processEnvironment__wrappee__highWaterSensor() [L98] int tmp ; [L101] COND TRUE ! pumpRunning [L103] CALL, EXPR isHighWaterLevel() [L264] int retValue_acc ; [L265] int tmp ; [L266] int tmp___0 ; [L270] CALL, EXPR isHighWaterSensorDry() [L961] int retValue_acc ; [L964] COND TRUE waterLevel < 2 [L965] retValue_acc = 1 [L966] return (retValue_acc); [L270] RET, EXPR isHighWaterSensorDry() [L270] tmp = isHighWaterSensorDry() [L272] COND TRUE \read(tmp) [L273] tmp___0 = 0 [L277] retValue_acc = tmp___0 [L278] return (retValue_acc); [L103] RET, EXPR isHighWaterLevel() [L103] tmp = isHighWaterLevel() [L105] COND FALSE !(\read(tmp)) [L111] FCALL processEnvironment__wrappee__base() [L142] RET processEnvironment__wrappee__highWaterSensor() [L168] RET processEnvironment__wrappee__methaneQuery() [L78] RET processEnvironment() [L84] CALL __utac_acc__Specification1_spec__1() [L986] int tmp ; [L987] int tmp___0 ; [L991] CALL, EXPR isMethaneLevelCritical() [L920] int retValue_acc ; [L923] retValue_acc = methaneLevelCritical [L924] return (retValue_acc); [L991] RET, EXPR isMethaneLevelCritical() [L991] tmp = isMethaneLevelCritical() [L993] COND FALSE !(\read(tmp)) [L84] RET __utac_acc__Specification1_spec__1() [L368] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 323]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L61] int pumpRunning = 0; [L62] int systemActive = 1; [L587] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L784] int cleanupTimeShifts = 4; [L881] int waterLevel = 1; [L882] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L857] int retValue_acc ; [L858] int tmp ; [L862] FCALL select_helpers() [L863] FCALL select_features() [L864] CALL, EXPR valid_product() [L409] int retValue_acc ; [L412] retValue_acc = 1 [L413] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L864] RET, EXPR valid_product() [L864] tmp = valid_product() [L866] COND TRUE \read(tmp) [L868] FCALL setup() [L869] CALL runTest() [L851] CALL test() [L314] int splverifierCounter ; [L315] int tmp ; [L316] int tmp___0 ; [L317] int tmp___1 ; [L318] int tmp___2 ; [L321] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L323] COND TRUE 1 [L325] COND TRUE splverifierCounter < 4 [L331] tmp = __VERIFIER_nondet_int() [L333] COND FALSE !(\read(tmp)) [L341] tmp___0 = __VERIFIER_nondet_int() [L343] COND FALSE !(\read(tmp___0)) [L351] tmp___2 = __VERIFIER_nondet_int() [L353] COND TRUE \read(tmp___2) [L355] CALL startSystem() [L305] systemActive = 1 [L355] RET startSystem() [L368] CALL timeShift() [L69] COND FALSE !(\read(pumpRunning)) [L76] COND TRUE \read(systemActive) [L78] CALL processEnvironment() [L150] int tmp ; [L153] COND FALSE !(\read(pumpRunning)) [L168] CALL processEnvironment__wrappee__methaneQuery() [L124] int tmp ; [L127] COND FALSE !(\read(pumpRunning)) [L142] CALL processEnvironment__wrappee__highWaterSensor() [L98] int tmp ; [L101] COND TRUE ! pumpRunning [L103] CALL, EXPR isHighWaterLevel() [L264] int retValue_acc ; [L265] int tmp ; [L266] int tmp___0 ; [L270] CALL, EXPR isHighWaterSensorDry() [L961] int retValue_acc ; [L964] COND TRUE waterLevel < 2 [L965] retValue_acc = 1 [L966] return (retValue_acc); [L270] RET, EXPR isHighWaterSensorDry() [L270] tmp = isHighWaterSensorDry() [L272] COND TRUE \read(tmp) [L273] tmp___0 = 0 [L277] retValue_acc = tmp___0 [L278] return (retValue_acc); [L103] RET, EXPR isHighWaterLevel() [L103] tmp = isHighWaterLevel() [L105] COND FALSE !(\read(tmp)) [L111] FCALL processEnvironment__wrappee__base() [L142] RET processEnvironment__wrappee__highWaterSensor() [L168] RET processEnvironment__wrappee__methaneQuery() [L78] RET processEnvironment() [L84] CALL __utac_acc__Specification1_spec__1() [L986] int tmp ; [L987] int tmp___0 ; [L991] CALL, EXPR isMethaneLevelCritical() [L920] int retValue_acc ; [L923] retValue_acc = methaneLevelCritical [L924] return (retValue_acc); [L991] RET, EXPR isMethaneLevelCritical() [L991] tmp = isMethaneLevelCritical() [L993] COND FALSE !(\read(tmp)) [L84] RET __utac_acc__Specification1_spec__1() [L368] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2023-11-21 22:27:33,030 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f84c6f8-f9cf-42fe-ae5c-51c807ee2ab8/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)