./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product53.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 527bcce2 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_22d9e892-5d7f-4af3-baf0-c97d10ced074/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22d9e892-5d7f-4af3-baf0-c97d10ced074/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_22d9e892-5d7f-4af3-baf0-c97d10ced074/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22d9e892-5d7f-4af3-baf0-c97d10ced074/bin/uautomizer-verify-bycVGegfSx/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product53.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22d9e892-5d7f-4af3-baf0-c97d10ced074/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_22d9e892-5d7f-4af3-baf0-c97d10ced074/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 1f55fffdfb523946c08e4798dfd7a981dcf70594f408e958cce4b1b6e97bd924 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:10:28,830 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:10:28,957 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22d9e892-5d7f-4af3-baf0-c97d10ced074/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-21 22:10:28,965 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:10:28,966 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:10:29,005 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:10:29,007 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:10:29,007 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:10:29,008 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:10:29,013 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:10:29,014 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:10:29,015 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:10:29,015 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:10:29,018 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-21 22:10:29,018 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-21 22:10:29,019 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-21 22:10:29,021 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-21 22:10:29,021 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-21 22:10:29,022 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-21 22:10:29,022 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:10:29,023 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-21 22:10:29,023 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:10:29,024 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:10:29,024 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:10:29,025 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:10:29,025 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-21 22:10:29,026 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-21 22:10:29,026 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-21 22:10:29,027 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:10:29,027 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:10:29,029 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:10:29,029 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-21 22:10:29,029 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:10:29,030 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:10:29,030 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:10:29,031 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:10:29,031 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:10:29,032 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-21 22:10:29,032 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_22d9e892-5d7f-4af3-baf0-c97d10ced074/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22d9e892-5d7f-4af3-baf0-c97d10ced074/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1f55fffdfb523946c08e4798dfd7a981dcf70594f408e958cce4b1b6e97bd924 [2023-11-21 22:10:29,318 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:10:29,340 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:10:29,343 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:10:29,345 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:10:29,345 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:10:29,347 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22d9e892-5d7f-4af3-baf0-c97d10ced074/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/product-lines/minepump_spec2_product53.cil.c [2023-11-21 22:10:32,577 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:10:32,895 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:10:32,896 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22d9e892-5d7f-4af3-baf0-c97d10ced074/sv-benchmarks/c/product-lines/minepump_spec2_product53.cil.c [2023-11-21 22:10:32,913 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22d9e892-5d7f-4af3-baf0-c97d10ced074/bin/uautomizer-verify-bycVGegfSx/data/2912438f4/9d155d978b9c40378cd4995b82013b7f/FLAG65710c9d4 [2023-11-21 22:10:32,933 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22d9e892-5d7f-4af3-baf0-c97d10ced074/bin/uautomizer-verify-bycVGegfSx/data/2912438f4/9d155d978b9c40378cd4995b82013b7f [2023-11-21 22:10:32,936 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:10:32,938 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:10:32,940 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:10:32,940 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:10:32,946 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:10:32,948 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:10:32" (1/1) ... [2023-11-21 22:10:32,949 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e3a3b8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:32, skipping insertion in model container [2023-11-21 22:10:32,949 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:10:32" (1/1) ... [2023-11-21 22:10:33,000 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:10:33,289 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:10:33,311 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:10:33,322 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] [2023-11-21 22:10:33,324 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [58] [2023-11-21 22:10:33,324 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [127] [2023-11-21 22:10:33,325 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [493] [2023-11-21 22:10:33,325 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [726] [2023-11-21 22:10:33,325 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [765] [2023-11-21 22:10:33,326 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [865] [2023-11-21 22:10:33,326 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [969] [2023-11-21 22:10:33,462 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:10:33,486 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:10:33,487 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:33 WrapperNode [2023-11-21 22:10:33,487 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:10:33,489 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:10:33,489 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:10:33,489 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:10:33,499 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:33" (1/1) ... [2023-11-21 22:10:33,530 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:33" (1/1) ... [2023-11-21 22:10:33,625 INFO L138 Inliner]: procedures = 57, calls = 104, calls flagged for inlining = 57, calls inlined = 141, statements flattened = 967 [2023-11-21 22:10:33,626 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:10:33,627 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:10:33,627 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:10:33,627 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:10:33,643 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:33" (1/1) ... [2023-11-21 22:10:33,643 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:33" (1/1) ... [2023-11-21 22:10:33,649 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:33" (1/1) ... [2023-11-21 22:10:33,687 INFO L187 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-21 22:10:33,703 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:33" (1/1) ... [2023-11-21 22:10:33,704 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:33" (1/1) ... [2023-11-21 22:10:33,737 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:33" (1/1) ... [2023-11-21 22:10:33,756 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:33" (1/1) ... [2023-11-21 22:10:33,765 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:33" (1/1) ... [2023-11-21 22:10:33,770 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:33" (1/1) ... [2023-11-21 22:10:33,783 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:10:33,784 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:10:33,784 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:10:33,785 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:10:33,786 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:33" (1/1) ... [2023-11-21 22:10:33,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:10:33,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22d9e892-5d7f-4af3-baf0-c97d10ced074/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:10:33,832 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22d9e892-5d7f-4af3-baf0-c97d10ced074/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:10:33,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22d9e892-5d7f-4af3-baf0-c97d10ced074/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-21 22:10:33,890 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:10:33,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 22:10:33,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:10:33,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:10:34,013 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:10:34,016 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:10:34,968 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:10:34,988 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:10:34,989 INFO L308 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-21 22:10:34,991 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:10:34 BoogieIcfgContainer [2023-11-21 22:10:34,991 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:10:34,993 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-21 22:10:34,993 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-21 22:10:34,998 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-21 22:10:34,999 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-21 22:10:35,000 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.11 10:10:32" (1/3) ... [2023-11-21 22:10:35,001 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@68ea5ce7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 10:10:35, skipping insertion in model container [2023-11-21 22:10:35,002 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-21 22:10:35,002 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:33" (2/3) ... [2023-11-21 22:10:35,003 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@68ea5ce7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 10:10:35, skipping insertion in model container [2023-11-21 22:10:35,003 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-21 22:10:35,003 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:10:34" (3/3) ... [2023-11-21 22:10:35,005 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product53.cil.c [2023-11-21 22:10:35,083 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-21 22:10:35,083 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-21 22:10:35,084 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-21 22:10:35,084 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-21 22:10:35,084 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-21 22:10:35,084 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-21 22:10:35,084 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-21 22:10:35,085 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-21 22:10:35,093 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 277 states, 276 states have (on average 1.3731884057971016) internal successors, (379), 276 states have internal predecessors, (379), 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 22:10:35,134 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 180 [2023-11-21 22:10:35,134 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 22:10:35,134 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 22:10:35,145 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:10:35,145 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:10:35,146 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-21 22:10:35,148 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 277 states, 276 states have (on average 1.3731884057971016) internal successors, (379), 276 states have internal predecessors, (379), 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 22:10:35,160 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 180 [2023-11-21 22:10:35,161 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 22:10:35,161 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 22:10:35,163 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:10:35,163 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:10:35,175 INFO L748 eck$LassoCheckResult]: Stem: 172#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 185#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~7#1, main_~tmp~10#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 24#select_helpers_returnLabel#1true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 247#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~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1; 90#valid_product_returnLabel#1true main_#t~ret47#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret47#1;havoc main_#t~ret47#1; 159#L852true assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 72#setup_returnLabel#1true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 111#__utac_acc__Specification2_spec__1_returnLabel#1true assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 30#L73-2true [2023-11-21 22:10:35,177 INFO L750 eck$LassoCheckResult]: Loop: 30#L73-2true assume !false; 223#L74true assume test_~splverifierCounter~0#1 < 4; 208#L75true havoc test_#t~nondet4#1;test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 18#L83true assume !(0 != test_~tmp~0#1); 121#L83-2true havoc test_#t~nondet5#1;test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 34#L93true assume !(0 != test_~tmp___0~0#1); 104#L93-2true havoc test_#t~nondet6#1;test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 258#L103true assume 0 != test_~tmp___2~0#1; 133#L109-2true assume { :begin_inline_timeShift } true; 220#L511true assume !(0 != ~pumpRunning~0); 26#L511-2true assume !(0 != ~systemActive~0); 173#L518-1true assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret45#1, __utac_acc__Specification2_spec__2_#t~ret46#1, __utac_acc__Specification2_spec__2_~tmp~9#1, __utac_acc__Specification2_spec__2_~tmp___0~3#1;havoc __utac_acc__Specification2_spec__2_~tmp~9#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;isMethaneLevelCritical_~retValue_acc~8#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~8#1; 217#isMethaneLevelCritical_returnLabel#2true __utac_acc__Specification2_spec__2_#t~ret45#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~9#1 := __utac_acc__Specification2_spec__2_#t~ret45#1;havoc __utac_acc__Specification2_spec__2_#t~ret45#1; 36#L744true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~9#1);~methAndRunningLastTime~0 := 0; 150#L744-1true havoc __utac_acc__Specification2_spec__2_#t~ret45#1, __utac_acc__Specification2_spec__2_#t~ret46#1, __utac_acc__Specification2_spec__2_~tmp~9#1, __utac_acc__Specification2_spec__2_~tmp___0~3#1;assume { :end_inline___utac_acc__Specification2_spec__2 } true; 209#timeShift_returnLabel#1true assume { :end_inline_timeShift } true; 30#L73-2true [2023-11-21 22:10:35,185 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:10:35,185 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2023-11-21 22:10:35,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:10:35,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782078770] [2023-11-21 22:10:35,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:10:35,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:10:35,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:10:35,306 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:10:35,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:10:35,352 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:10:35,359 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:10:35,359 INFO L85 PathProgramCache]: Analyzing trace with hash -1219505524, now seen corresponding path program 1 times [2023-11-21 22:10:35,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:10:35,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966577959] [2023-11-21 22:10:35,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:10:35,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:10:35,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:10:35,400 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:10:35,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:10:35,411 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:10:35,412 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:10:35,413 INFO L85 PathProgramCache]: Analyzing trace with hash -1381792907, now seen corresponding path program 1 times [2023-11-21 22:10:35,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:10:35,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076324572] [2023-11-21 22:10:35,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:10:35,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:10:35,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:10:35,642 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 22:10:35,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:10:35,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076324572] [2023-11-21 22:10:35,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076324572] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:10:35,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:10:35,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:10:35,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926264567] [2023-11-21 22:10:35,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:10:35,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:10:35,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:10:35,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:10:35,849 INFO L87 Difference]: Start difference. First operand has 277 states, 276 states have (on average 1.3731884057971016) internal successors, (379), 276 states have internal predecessors, (379), 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 22:10:35,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:10:35,939 INFO L93 Difference]: Finished difference Result 271 states and 362 transitions. [2023-11-21 22:10:35,941 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 271 states and 362 transitions. [2023-11-21 22:10:35,946 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 174 [2023-11-21 22:10:35,954 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 271 states to 261 states and 352 transitions. [2023-11-21 22:10:35,955 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 261 [2023-11-21 22:10:35,957 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 261 [2023-11-21 22:10:35,957 INFO L73 IsDeterministic]: Start isDeterministic. Operand 261 states and 352 transitions. [2023-11-21 22:10:35,960 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:10:35,960 INFO L218 hiAutomatonCegarLoop]: Abstraction has 261 states and 352 transitions. [2023-11-21 22:10:35,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states and 352 transitions. [2023-11-21 22:10:36,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 261. [2023-11-21 22:10:36,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 261 states have (on average 1.3486590038314177) internal successors, (352), 260 states have internal predecessors, (352), 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 22:10:36,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 352 transitions. [2023-11-21 22:10:36,010 INFO L240 hiAutomatonCegarLoop]: Abstraction has 261 states and 352 transitions. [2023-11-21 22:10:36,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 22:10:36,015 INFO L428 stractBuchiCegarLoop]: Abstraction has 261 states and 352 transitions. [2023-11-21 22:10:36,016 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-21 22:10:36,016 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 261 states and 352 transitions. [2023-11-21 22:10:36,019 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 174 [2023-11-21 22:10:36,019 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 22:10:36,019 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 22:10:36,020 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:10:36,021 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] [2023-11-21 22:10:36,021 INFO L748 eck$LassoCheckResult]: Stem: 790#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 791#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~7#1, main_~tmp~10#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 612#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 613#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~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1; 723#valid_product_returnLabel#1 main_#t~ret47#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret47#1;havoc main_#t~ret47#1; 724#L852 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 694#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 695#__utac_acc__Specification2_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 621#L73-2 [2023-11-21 22:10:36,022 INFO L750 eck$LassoCheckResult]: Loop: 621#L73-2 assume !false; 622#L74 assume test_~splverifierCounter~0#1 < 4; 811#L75 havoc test_#t~nondet4#1;test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 597#L83 assume !(0 != test_~tmp~0#1); 599#L83-2 havoc test_#t~nondet5#1;test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 630#L93 assume !(0 != test_~tmp___0~0#1); 632#L93-2 havoc test_#t~nondet6#1;test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 735#L103 assume 0 != test_~tmp___2~0#1; 755#L109-2 assume { :begin_inline_timeShift } true; 763#L511 assume !(0 != ~pumpRunning~0); 614#L511-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret33#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 615#L595 assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret34#1, isMethaneAlarm_~retValue_acc~3#1;havoc isMethaneAlarm_~retValue_acc~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;isMethaneLevelCritical_~retValue_acc~8#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~8#1; 825#isMethaneLevelCritical_returnLabel#1 isMethaneAlarm_#t~ret34#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~3#1 := isMethaneAlarm_#t~ret34#1;havoc isMethaneAlarm_#t~ret34#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~3#1; 824#isMethaneAlarm_returnLabel#1 processEnvironment_#t~ret33#1 := isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret34#1, isMethaneAlarm_~retValue_acc~3#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~6#1 := processEnvironment_#t~ret33#1;havoc processEnvironment_#t~ret33#1; 808#L599 assume 0 != processEnvironment_~tmp~6#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; 809#deactivatePump_returnLabel#1 assume { :end_inline_deactivatePump } true; 573#L595-1 havoc processEnvironment_#t~ret33#1, processEnvironment_~tmp~6#1;assume { :end_inline_processEnvironment } true; 618#L518-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret45#1, __utac_acc__Specification2_spec__2_#t~ret46#1, __utac_acc__Specification2_spec__2_~tmp~9#1, __utac_acc__Specification2_spec__2_~tmp___0~3#1;havoc __utac_acc__Specification2_spec__2_~tmp~9#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;isMethaneLevelCritical_~retValue_acc~8#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~8#1; 792#isMethaneLevelCritical_returnLabel#2 __utac_acc__Specification2_spec__2_#t~ret45#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~9#1 := __utac_acc__Specification2_spec__2_#t~ret45#1;havoc __utac_acc__Specification2_spec__2_#t~ret45#1; 635#L744 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~9#1);~methAndRunningLastTime~0 := 0; 636#L744-1 havoc __utac_acc__Specification2_spec__2_#t~ret45#1, __utac_acc__Specification2_spec__2_#t~ret46#1, __utac_acc__Specification2_spec__2_~tmp~9#1, __utac_acc__Specification2_spec__2_~tmp___0~3#1;assume { :end_inline___utac_acc__Specification2_spec__2 } true; 779#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 621#L73-2 [2023-11-21 22:10:36,022 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:10:36,023 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2023-11-21 22:10:36,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:10:36,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239515204] [2023-11-21 22:10:36,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:10:36,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:10:36,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:10:36,036 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:10:36,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:10:36,049 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:10:36,050 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:10:36,050 INFO L85 PathProgramCache]: Analyzing trace with hash 1465326293, now seen corresponding path program 1 times [2023-11-21 22:10:36,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:10:36,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445472569] [2023-11-21 22:10:36,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:10:36,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:10:36,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:10:36,076 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 22:10:36,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:10:36,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445472569] [2023-11-21 22:10:36,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445472569] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:10:36,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:10:36,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:10:36,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523292619] [2023-11-21 22:10:36,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:10:36,078 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-21 22:10:36,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:10:36,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:10:36,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:10:36,080 INFO L87 Difference]: Start difference. First operand 261 states and 352 transitions. cyclomatic complexity: 93 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) [2023-11-21 22:10:36,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:10:36,252 INFO L93 Difference]: Finished difference Result 274 states and 351 transitions. [2023-11-21 22:10:36,252 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 274 states and 351 transitions. [2023-11-21 22:10:36,275 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 188 [2023-11-21 22:10:36,278 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 274 states to 274 states and 351 transitions. [2023-11-21 22:10:36,278 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 274 [2023-11-21 22:10:36,279 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 274 [2023-11-21 22:10:36,279 INFO L73 IsDeterministic]: Start isDeterministic. Operand 274 states and 351 transitions. [2023-11-21 22:10:36,281 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:10:36,281 INFO L218 hiAutomatonCegarLoop]: Abstraction has 274 states and 351 transitions. [2023-11-21 22:10:36,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states and 351 transitions. [2023-11-21 22:10:36,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 274. [2023-11-21 22:10:36,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 274 states have (on average 1.281021897810219) internal successors, (351), 273 states have internal predecessors, (351), 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 22:10:36,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 351 transitions. [2023-11-21 22:10:36,296 INFO L240 hiAutomatonCegarLoop]: Abstraction has 274 states and 351 transitions. [2023-11-21 22:10:36,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:10:36,297 INFO L428 stractBuchiCegarLoop]: Abstraction has 274 states and 351 transitions. [2023-11-21 22:10:36,298 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-21 22:10:36,298 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 274 states and 351 transitions. [2023-11-21 22:10:36,300 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 188 [2023-11-21 22:10:36,300 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 22:10:36,300 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 22:10:36,301 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:10:36,301 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] [2023-11-21 22:10:36,302 INFO L748 eck$LassoCheckResult]: Stem: 1289#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 1290#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~7#1, main_~tmp~10#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 1135#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1136#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~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1; 1234#valid_product_returnLabel#1 main_#t~ret47#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret47#1;havoc main_#t~ret47#1; 1235#L852 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 1208#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 1209#__utac_acc__Specification2_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1144#L73-2 [2023-11-21 22:10:36,302 INFO L750 eck$LassoCheckResult]: Loop: 1144#L73-2 assume !false; 1145#L74 assume test_~splverifierCounter~0#1 < 4; 1318#L75 havoc test_#t~nondet4#1;test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 1128#L83 assume !(0 != test_~tmp~0#1); 1130#L83-2 havoc test_#t~nondet5#1;test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 1153#L93 assume !(0 != test_~tmp___0~0#1); 1155#L93-2 havoc test_#t~nondet6#1;test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 1243#L103 assume 0 != test_~tmp___2~0#1; 1258#L109-2 assume { :begin_inline_timeShift } true; 1267#L511 assume !(0 != ~pumpRunning~0); 1137#L511-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret33#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 1138#L595 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret32#1, processEnvironment__wrappee__lowWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~5#1; 1321#L569-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret31#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4#1; 1322#L543-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret43#1, isHighWaterLevel_~retValue_acc~5#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~5#1;havoc isHighWaterLevel_~tmp~7#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~10#1;havoc isHighWaterSensorDry_~retValue_acc~10#1; 1188#L950-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~10#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~10#1; 1189#isHighWaterSensorDry_returnLabel#4 isHighWaterLevel_#t~ret43#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~10#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7#1 := isHighWaterLevel_#t~ret43#1;havoc isHighWaterLevel_#t~ret43#1; 1177#L697-9 assume 0 != isHighWaterLevel_~tmp~7#1;isHighWaterLevel_~tmp___0~1#1 := 0; 1178#L697-11 isHighWaterLevel_~retValue_acc~5#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~5#1; 1302#isHighWaterLevel_returnLabel#4 processEnvironment__wrappee__highWaterSensor_#t~ret31#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret43#1, isHighWaterLevel_~retValue_acc~5#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~4#1 := processEnvironment__wrappee__highWaterSensor_#t~ret31#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret31#1; 1270#L547-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1253#processEnvironment__wrappee__base_returnLabel#7 assume { :end_inline_processEnvironment__wrappee__base } true; 1229#L543-7 havoc processEnvironment__wrappee__highWaterSensor_#t~ret31#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1230#L569-3 havoc processEnvironment__wrappee__lowWaterSensor_#t~ret32#1, processEnvironment__wrappee__lowWaterSensor_~tmp~5#1;assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 1112#L595-1 havoc processEnvironment_#t~ret33#1, processEnvironment_~tmp~6#1;assume { :end_inline_processEnvironment } true; 1141#L518-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret45#1, __utac_acc__Specification2_spec__2_#t~ret46#1, __utac_acc__Specification2_spec__2_~tmp~9#1, __utac_acc__Specification2_spec__2_~tmp___0~3#1;havoc __utac_acc__Specification2_spec__2_~tmp~9#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;isMethaneLevelCritical_~retValue_acc~8#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~8#1; 1291#isMethaneLevelCritical_returnLabel#2 __utac_acc__Specification2_spec__2_#t~ret45#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~9#1 := __utac_acc__Specification2_spec__2_#t~ret45#1;havoc __utac_acc__Specification2_spec__2_#t~ret45#1; 1156#L744 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~9#1);~methAndRunningLastTime~0 := 0; 1157#L744-1 havoc __utac_acc__Specification2_spec__2_#t~ret45#1, __utac_acc__Specification2_spec__2_#t~ret46#1, __utac_acc__Specification2_spec__2_~tmp~9#1, __utac_acc__Specification2_spec__2_~tmp___0~3#1;assume { :end_inline___utac_acc__Specification2_spec__2 } true; 1279#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1144#L73-2 [2023-11-21 22:10:36,303 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:10:36,303 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2023-11-21 22:10:36,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:10:36,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409105326] [2023-11-21 22:10:36,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:10:36,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:10:36,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:10:36,313 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:10:36,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:10:36,324 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:10:36,325 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:10:36,325 INFO L85 PathProgramCache]: Analyzing trace with hash 1457736756, now seen corresponding path program 1 times [2023-11-21 22:10:36,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:10:36,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510589499] [2023-11-21 22:10:36,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:10:36,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:10:36,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:10:36,335 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:10:36,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:10:36,346 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:10:36,346 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:10:36,347 INFO L85 PathProgramCache]: Analyzing trace with hash -1930813973, now seen corresponding path program 1 times [2023-11-21 22:10:36,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:10:36,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563140882] [2023-11-21 22:10:36,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:10:36,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:10:36,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:10:36,363 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:10:36,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:10:36,381 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:10:37,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:10:37,763 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:10:37,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:10:37,828 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.11 10:10:37 BoogieIcfgContainer [2023-11-21 22:10:37,828 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-21 22:10:37,829 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 22:10:37,830 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 22:10:37,830 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 22:10:37,831 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:10:34" (3/4) ... [2023-11-21 22:10:37,832 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2023-11-21 22:10:37,903 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22d9e892-5d7f-4af3-baf0-c97d10ced074/bin/uautomizer-verify-bycVGegfSx/witness.graphml [2023-11-21 22:10:37,903 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 22:10:37,904 INFO L158 Benchmark]: Toolchain (without parser) took 4965.94ms. Allocated memory was 134.2MB in the beginning and 201.3MB in the end (delta: 67.1MB). Free memory was 94.5MB in the beginning and 116.3MB in the end (delta: -21.9MB). Peak memory consumption was 46.9MB. Max. memory is 16.1GB. [2023-11-21 22:10:37,905 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 134.2MB. Free memory is still 107.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:10:37,905 INFO L158 Benchmark]: CACSL2BoogieTranslator took 547.82ms. Allocated memory is still 134.2MB. Free memory was 94.5MB in the beginning and 74.8MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-21 22:10:37,906 INFO L158 Benchmark]: Boogie Procedure Inliner took 137.25ms. Allocated memory is still 134.2MB. Free memory was 74.8MB in the beginning and 70.5MB in the end (delta: 4.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 22:10:37,906 INFO L158 Benchmark]: Boogie Preprocessor took 156.58ms. Allocated memory is still 134.2MB. Free memory was 70.5MB in the beginning and 65.8MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 22:10:37,907 INFO L158 Benchmark]: RCFGBuilder took 1207.22ms. Allocated memory was 134.2MB in the beginning and 201.3MB in the end (delta: 67.1MB). Free memory was 65.4MB in the beginning and 155.6MB in the end (delta: -90.1MB). Peak memory consumption was 31.9MB. Max. memory is 16.1GB. [2023-11-21 22:10:37,908 INFO L158 Benchmark]: BuchiAutomizer took 2835.95ms. Allocated memory is still 201.3MB. Free memory was 155.6MB in the beginning and 119.5MB in the end (delta: 36.1MB). Peak memory consumption was 36.0MB. Max. memory is 16.1GB. [2023-11-21 22:10:37,908 INFO L158 Benchmark]: Witness Printer took 74.06ms. Allocated memory is still 201.3MB. Free memory was 119.5MB in the beginning and 116.3MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 22:10:37,911 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 134.2MB. Free memory is still 107.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 547.82ms. Allocated memory is still 134.2MB. Free memory was 94.5MB in the beginning and 74.8MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 137.25ms. Allocated memory is still 134.2MB. Free memory was 74.8MB in the beginning and 70.5MB in the end (delta: 4.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 156.58ms. Allocated memory is still 134.2MB. Free memory was 70.5MB in the beginning and 65.8MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1207.22ms. Allocated memory was 134.2MB in the beginning and 201.3MB in the end (delta: 67.1MB). Free memory was 65.4MB in the beginning and 155.6MB in the end (delta: -90.1MB). Peak memory consumption was 31.9MB. Max. memory is 16.1GB. * BuchiAutomizer took 2835.95ms. Allocated memory is still 201.3MB. Free memory was 155.6MB in the beginning and 119.5MB in the end (delta: 36.1MB). Peak memory consumption was 36.0MB. Max. memory is 16.1GB. * Witness Printer took 74.06ms. Allocated memory is still 201.3MB. Free memory was 119.5MB in the beginning and 116.3MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] - GenericResultAtLocation [Line: 58]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [58] - GenericResultAtLocation [Line: 127]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [127] - GenericResultAtLocation [Line: 493]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [493] - GenericResultAtLocation [Line: 726]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [726] - GenericResultAtLocation [Line: 765]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [765] - GenericResultAtLocation [Line: 865]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [865] - GenericResultAtLocation [Line: 969]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [969] * 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 274 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.7s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.1s. Construction of modules took 0.1s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s 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, 1603 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1603 mSDsluCounter, 771 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 127 mSDsCounter, 36 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 51 IncrementalHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 36 mSolverCounterUnsat, 644 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: 73]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L297] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L503] int pumpRunning = 0; [L504] int systemActive = 1; [L727] int methAndRunningLastTime ; [L766] int cleanupTimeShifts = 4; [L867] int waterLevel = 1; [L868] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L843] int retValue_acc ; [L844] int tmp ; [L848] FCALL select_helpers() [L849] FCALL select_features() [L850] CALL, EXPR valid_product() [L996] int retValue_acc ; [L999] retValue_acc = 1 [L1000] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L850] RET, EXPR valid_product() [L850] tmp = valid_product() [L852] COND TRUE \read(tmp) [L854] FCALL setup() [L855] CALL runTest() [L833] CALL __utac_acc__Specification2_spec__1() [L732] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L833] RET __utac_acc__Specification2_spec__1() [L834] CALL test() [L64] int splverifierCounter ; [L65] int tmp ; [L66] int tmp___0 ; [L67] int tmp___1 ; [L68] int tmp___2 ; [L71] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L73] COND TRUE 1 [L75] COND TRUE splverifierCounter < 4 [L81] tmp = __VERIFIER_nondet_int() [L83] COND FALSE !(\read(tmp)) [L91] tmp___0 = __VERIFIER_nondet_int() [L93] COND FALSE !(\read(tmp___0)) [L101] tmp___2 = __VERIFIER_nondet_int() [L103] COND TRUE \read(tmp___2) [L116] CALL timeShift() [L511] COND FALSE !(\read(pumpRunning)) [L518] COND TRUE \read(systemActive) [L520] CALL processEnvironment() [L592] int tmp ; [L595] COND FALSE !(\read(pumpRunning)) [L610] CALL processEnvironment__wrappee__lowWaterSensor() [L566] int tmp ; [L569] COND FALSE !(\read(pumpRunning)) [L584] CALL processEnvironment__wrappee__highWaterSensor() [L540] int tmp ; [L543] COND TRUE ! pumpRunning [L545] CALL, EXPR isHighWaterLevel() [L689] int retValue_acc ; [L690] int tmp ; [L691] int tmp___0 ; [L695] CALL, EXPR isHighWaterSensorDry() [L947] int retValue_acc ; [L950] COND TRUE waterLevel < 2 [L951] retValue_acc = 1 [L952] return (retValue_acc); [L695] RET, EXPR isHighWaterSensorDry() [L695] tmp = isHighWaterSensorDry() [L697] COND TRUE \read(tmp) [L698] tmp___0 = 0 [L702] retValue_acc = tmp___0 [L703] return (retValue_acc); [L545] RET, EXPR isHighWaterLevel() [L545] tmp = isHighWaterLevel() [L547] COND FALSE !(\read(tmp)) [L553] FCALL processEnvironment__wrappee__base() [L584] RET processEnvironment__wrappee__highWaterSensor() [L610] RET processEnvironment__wrappee__lowWaterSensor() [L520] RET processEnvironment() [L526] CALL __utac_acc__Specification2_spec__2() [L737] int tmp ; [L738] int tmp___0 ; [L742] CALL, EXPR isMethaneLevelCritical() [L906] int retValue_acc ; [L909] retValue_acc = methaneLevelCritical [L910] return (retValue_acc); [L742] RET, EXPR isMethaneLevelCritical() [L742] tmp = isMethaneLevelCritical() [L744] COND FALSE !(\read(tmp)) [L760] methAndRunningLastTime = 0 [L526] RET __utac_acc__Specification2_spec__2() [L116] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 73]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L297] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L503] int pumpRunning = 0; [L504] int systemActive = 1; [L727] int methAndRunningLastTime ; [L766] int cleanupTimeShifts = 4; [L867] int waterLevel = 1; [L868] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L843] int retValue_acc ; [L844] int tmp ; [L848] FCALL select_helpers() [L849] FCALL select_features() [L850] CALL, EXPR valid_product() [L996] int retValue_acc ; [L999] retValue_acc = 1 [L1000] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L850] RET, EXPR valid_product() [L850] tmp = valid_product() [L852] COND TRUE \read(tmp) [L854] FCALL setup() [L855] CALL runTest() [L833] CALL __utac_acc__Specification2_spec__1() [L732] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L833] RET __utac_acc__Specification2_spec__1() [L834] CALL test() [L64] int splverifierCounter ; [L65] int tmp ; [L66] int tmp___0 ; [L67] int tmp___1 ; [L68] int tmp___2 ; [L71] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L73] COND TRUE 1 [L75] COND TRUE splverifierCounter < 4 [L81] tmp = __VERIFIER_nondet_int() [L83] COND FALSE !(\read(tmp)) [L91] tmp___0 = __VERIFIER_nondet_int() [L93] COND FALSE !(\read(tmp___0)) [L101] tmp___2 = __VERIFIER_nondet_int() [L103] COND TRUE \read(tmp___2) [L116] CALL timeShift() [L511] COND FALSE !(\read(pumpRunning)) [L518] COND TRUE \read(systemActive) [L520] CALL processEnvironment() [L592] int tmp ; [L595] COND FALSE !(\read(pumpRunning)) [L610] CALL processEnvironment__wrappee__lowWaterSensor() [L566] int tmp ; [L569] COND FALSE !(\read(pumpRunning)) [L584] CALL processEnvironment__wrappee__highWaterSensor() [L540] int tmp ; [L543] COND TRUE ! pumpRunning [L545] CALL, EXPR isHighWaterLevel() [L689] int retValue_acc ; [L690] int tmp ; [L691] int tmp___0 ; [L695] CALL, EXPR isHighWaterSensorDry() [L947] int retValue_acc ; [L950] COND TRUE waterLevel < 2 [L951] retValue_acc = 1 [L952] return (retValue_acc); [L695] RET, EXPR isHighWaterSensorDry() [L695] tmp = isHighWaterSensorDry() [L697] COND TRUE \read(tmp) [L698] tmp___0 = 0 [L702] retValue_acc = tmp___0 [L703] return (retValue_acc); [L545] RET, EXPR isHighWaterLevel() [L545] tmp = isHighWaterLevel() [L547] COND FALSE !(\read(tmp)) [L553] FCALL processEnvironment__wrappee__base() [L584] RET processEnvironment__wrappee__highWaterSensor() [L610] RET processEnvironment__wrappee__lowWaterSensor() [L520] RET processEnvironment() [L526] CALL __utac_acc__Specification2_spec__2() [L737] int tmp ; [L738] int tmp___0 ; [L742] CALL, EXPR isMethaneLevelCritical() [L906] int retValue_acc ; [L909] retValue_acc = methaneLevelCritical [L910] return (retValue_acc); [L742] RET, EXPR isMethaneLevelCritical() [L742] tmp = isMethaneLevelCritical() [L744] COND FALSE !(\read(tmp)) [L760] methAndRunningLastTime = 0 [L526] RET __utac_acc__Specification2_spec__2() [L116] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2023-11-21 22:10:37,990 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22d9e892-5d7f-4af3-baf0-c97d10ced074/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)