./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product32.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_c541203d-2fd7-4aa5-a1cc-c47a02b2cd1e/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c541203d-2fd7-4aa5-a1cc-c47a02b2cd1e/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_c541203d-2fd7-4aa5-a1cc-c47a02b2cd1e/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c541203d-2fd7-4aa5-a1cc-c47a02b2cd1e/bin/uautomizer-verify-bycVGegfSx/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product32.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c541203d-2fd7-4aa5-a1cc-c47a02b2cd1e/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_c541203d-2fd7-4aa5-a1cc-c47a02b2cd1e/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 af36d03ba4a1f12ddb625aab4b3f9906d028707aefb4e7150e31be2b1be8c075 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 21:02:10,307 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 21:02:10,414 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c541203d-2fd7-4aa5-a1cc-c47a02b2cd1e/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-21 21:02:10,424 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 21:02:10,424 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 21:02:10,475 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 21:02:10,476 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 21:02:10,476 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 21:02:10,479 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 21:02:10,485 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 21:02:10,486 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 21:02:10,486 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 21:02:10,487 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 21:02:10,489 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-21 21:02:10,489 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-21 21:02:10,490 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-21 21:02:10,490 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-21 21:02:10,492 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-21 21:02:10,492 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-21 21:02:10,493 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 21:02:10,493 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-21 21:02:10,494 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 21:02:10,495 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 21:02:10,495 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 21:02:10,496 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 21:02:10,496 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-21 21:02:10,497 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-21 21:02:10,497 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-21 21:02:10,498 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 21:02:10,498 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 21:02:10,499 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 21:02:10,500 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-21 21:02:10,500 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 21:02:10,500 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 21:02:10,501 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 21:02:10,501 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 21:02:10,501 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 21:02:10,502 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-21 21:02:10,502 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_c541203d-2fd7-4aa5-a1cc-c47a02b2cd1e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c541203d-2fd7-4aa5-a1cc-c47a02b2cd1e/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> af36d03ba4a1f12ddb625aab4b3f9906d028707aefb4e7150e31be2b1be8c075 [2023-11-21 21:02:10,821 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 21:02:10,849 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 21:02:10,852 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 21:02:10,855 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 21:02:10,856 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 21:02:10,859 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c541203d-2fd7-4aa5-a1cc-c47a02b2cd1e/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/product-lines/minepump_spec5_product32.cil.c [2023-11-21 21:02:13,940 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 21:02:14,279 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 21:02:14,279 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c541203d-2fd7-4aa5-a1cc-c47a02b2cd1e/sv-benchmarks/c/product-lines/minepump_spec5_product32.cil.c [2023-11-21 21:02:14,301 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c541203d-2fd7-4aa5-a1cc-c47a02b2cd1e/bin/uautomizer-verify-bycVGegfSx/data/3bba1a250/568056079f674dbd8ce6b33b0719ddca/FLAG6993772b8 [2023-11-21 21:02:14,318 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c541203d-2fd7-4aa5-a1cc-c47a02b2cd1e/bin/uautomizer-verify-bycVGegfSx/data/3bba1a250/568056079f674dbd8ce6b33b0719ddca [2023-11-21 21:02:14,323 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 21:02:14,326 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 21:02:14,330 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 21:02:14,330 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 21:02:14,336 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 21:02:14,336 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:02:14" (1/1) ... [2023-11-21 21:02:14,338 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4115de92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:14, skipping insertion in model container [2023-11-21 21:02:14,338 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:02:14" (1/1) ... [2023-11-21 21:02:14,408 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 21:02:14,727 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 21:02:14,742 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 21:02:14,753 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] [2023-11-21 21:02:14,754 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [87] [2023-11-21 21:02:14,755 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [190] [2023-11-21 21:02:14,755 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [199] [2023-11-21 21:02:14,755 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [431] [2023-11-21 21:02:14,755 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [500] [2023-11-21 21:02:14,756 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [550] [2023-11-21 21:02:14,756 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [916] [2023-11-21 21:02:14,816 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 21:02:14,836 INFO L206 MainTranslator]: Completed translation [2023-11-21 21:02:14,836 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:14 WrapperNode [2023-11-21 21:02:14,837 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 21:02:14,838 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 21:02:14,838 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 21:02:14,838 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 21:02:14,846 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:14" (1/1) ... [2023-11-21 21:02:14,860 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:14" (1/1) ... [2023-11-21 21:02:14,916 INFO L138 Inliner]: procedures = 58, calls = 106, calls flagged for inlining = 59, calls inlined = 90, statements flattened = 557 [2023-11-21 21:02:14,921 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 21:02:14,922 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 21:02:14,922 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 21:02:14,922 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 21:02:14,933 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:14" (1/1) ... [2023-11-21 21:02:14,934 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:14" (1/1) ... [2023-11-21 21:02:14,949 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:14" (1/1) ... [2023-11-21 21:02:14,979 INFO L187 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-21 21:02:14,988 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:14" (1/1) ... [2023-11-21 21:02:14,988 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:14" (1/1) ... [2023-11-21 21:02:14,999 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:14" (1/1) ... [2023-11-21 21:02:15,018 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:14" (1/1) ... [2023-11-21 21:02:15,034 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:14" (1/1) ... [2023-11-21 21:02:15,036 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:14" (1/1) ... [2023-11-21 21:02:15,040 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 21:02:15,041 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 21:02:15,041 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 21:02:15,042 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 21:02:15,042 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:14" (1/1) ... [2023-11-21 21:02:15,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:02:15,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c541203d-2fd7-4aa5-a1cc-c47a02b2cd1e/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:02:15,075 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c541203d-2fd7-4aa5-a1cc-c47a02b2cd1e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:02:15,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c541203d-2fd7-4aa5-a1cc-c47a02b2cd1e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-21 21:02:15,142 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 21:02:15,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 21:02:15,143 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 21:02:15,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 21:02:15,256 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 21:02:15,258 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 21:02:15,775 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 21:02:15,790 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 21:02:15,790 INFO L308 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-21 21:02:15,792 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:02:15 BoogieIcfgContainer [2023-11-21 21:02:15,792 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 21:02:15,793 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-21 21:02:15,793 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-21 21:02:15,797 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-21 21:02:15,798 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-21 21:02:15,798 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.11 09:02:14" (1/3) ... [2023-11-21 21:02:15,799 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@156c552b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 09:02:15, skipping insertion in model container [2023-11-21 21:02:15,799 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-21 21:02:15,799 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:14" (2/3) ... [2023-11-21 21:02:15,800 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@156c552b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 09:02:15, skipping insertion in model container [2023-11-21 21:02:15,800 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-21 21:02:15,800 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:02:15" (3/3) ... [2023-11-21 21:02:15,801 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product32.cil.c [2023-11-21 21:02:15,864 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-21 21:02:15,864 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-21 21:02:15,865 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-21 21:02:15,865 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-21 21:02:15,865 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-21 21:02:15,865 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-21 21:02:15,865 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-21 21:02:15,865 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-21 21:02:15,870 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 168 states, 167 states have (on average 1.3353293413173652) internal successors, (223), 167 states have internal predecessors, (223), 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 21:02:15,900 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 109 [2023-11-21 21:02:15,900 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 21:02:15,900 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 21:02:15,908 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:02:15,909 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] [2023-11-21 21:02:15,909 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-21 21:02:15,910 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 168 states, 167 states have (on average 1.3353293413173652) internal successors, (223), 167 states have internal predecessors, (223), 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 21:02:15,920 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 109 [2023-11-21 21:02:15,920 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 21:02:15,921 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 21:02:15,922 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:02:15,922 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] [2023-11-21 21:02:15,928 INFO L748 eck$LassoCheckResult]: Stem: 24#$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);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 33#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret5#1, main_~retValue_acc~2#1, main_~tmp~0#1;havoc main_~retValue_acc~2#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 22#select_helpers_returnLabel#1true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 131#select_features_returnLabel#1true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 109#valid_product_returnLabel#1true main_#t~ret5#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret5#1;havoc main_#t~ret5#1; 54#L177true assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 85#setup_returnLabel#1true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 147#__utac_acc__Specification5_spec__1_returnLabel#1true assume { :end_inline___utac_acc__Specification5_spec__1 } 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~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 124#L442-2true [2023-11-21 21:02:15,929 INFO L750 eck$LassoCheckResult]: Loop: 124#L442-2true assume !false; 65#L443true assume test_~splverifierCounter~0#1 < 4; 121#L444true havoc test_#t~nondet19#1;test_~tmp~5#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 94#L452true assume !(0 != test_~tmp~5#1); 52#L452-2true havoc test_#t~nondet20#1;test_~tmp___0~1#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; 97#L462true assume !(0 != test_~tmp___0~1#1); 15#L462-2true havoc test_#t~nondet21#1;test_~tmp___2~0#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; 26#L472true 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; 40#L480true assume !(0 != test_~tmp___1~0#1); 49#L480-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret23#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~4#1;havoc isPumpRunning_~retValue_acc~4#1;isPumpRunning_~retValue_acc~4#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~4#1; 141#isPumpRunning_returnLabel#1true __utac_acc__Specification5_spec__2_#t~ret23#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~4#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret23#1;havoc __utac_acc__Specification5_spec__2_#t~ret23#1; 98#__utac_acc__Specification5_spec__2_returnLabel#1true havoc __utac_acc__Specification5_spec__2_#t~ret23#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true; 103#L221true assume !(0 != ~pumpRunning~0); 68#L221-2true assume !(0 != ~systemActive~0); 61#L228-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret24#1, __utac_acc__Specification5_spec__3_#t~ret25#1, __utac_acc__Specification5_spec__3_~tmp~6#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~6#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; 70#getWaterLevel_returnLabel#1true __utac_acc__Specification5_spec__3_#t~ret24#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~6#1 := __utac_acc__Specification5_spec__3_#t~ret24#1;havoc __utac_acc__Specification5_spec__3_#t~ret24#1; 110#L529true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~6#1); 167#L529-1true havoc __utac_acc__Specification5_spec__3_#t~ret24#1, __utac_acc__Specification5_spec__3_#t~ret25#1, __utac_acc__Specification5_spec__3_~tmp~6#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true; 71#timeShift_returnLabel#1true assume { :end_inline_timeShift } true; 124#L442-2true [2023-11-21 21:02:15,935 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:15,935 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2023-11-21 21:02:15,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:15,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250295681] [2023-11-21 21:02:15,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:15,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:16,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:02:16,043 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 21:02:16,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:02:16,081 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 21:02:16,084 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:16,085 INFO L85 PathProgramCache]: Analyzing trace with hash 1866434363, now seen corresponding path program 1 times [2023-11-21 21:02:16,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:16,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172742104] [2023-11-21 21:02:16,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:16,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:16,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:02:16,098 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 21:02:16,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:02:16,109 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 21:02:16,111 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:16,111 INFO L85 PathProgramCache]: Analyzing trace with hash -998784590, now seen corresponding path program 1 times [2023-11-21 21:02:16,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:16,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651693720] [2023-11-21 21:02:16,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:16,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:16,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:16,352 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 21:02:16,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:02:16,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651693720] [2023-11-21 21:02:16,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651693720] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:02:16,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:02:16,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 21:02:16,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476129379] [2023-11-21 21:02:16,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:02:16,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:02:16,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 21:02:16,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-21 21:02:16,540 INFO L87 Difference]: Start difference. First operand has 168 states, 167 states have (on average 1.3353293413173652) internal successors, (223), 167 states have internal predecessors, (223), 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 4.5) internal successors, (27), 5 states have internal predecessors, (27), 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 21:02:16,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 21:02:16,697 INFO L93 Difference]: Finished difference Result 541 states and 696 transitions. [2023-11-21 21:02:16,698 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 541 states and 696 transitions. [2023-11-21 21:02:16,712 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 352 [2023-11-21 21:02:16,722 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 541 states to 501 states and 656 transitions. [2023-11-21 21:02:16,723 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 501 [2023-11-21 21:02:16,725 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 501 [2023-11-21 21:02:16,726 INFO L73 IsDeterministic]: Start isDeterministic. Operand 501 states and 656 transitions. [2023-11-21 21:02:16,730 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:02:16,730 INFO L218 hiAutomatonCegarLoop]: Abstraction has 501 states and 656 transitions. [2023-11-21 21:02:16,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states and 656 transitions. [2023-11-21 21:02:16,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 213. [2023-11-21 21:02:16,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 213 states have (on average 1.3098591549295775) internal successors, (279), 212 states have internal predecessors, (279), 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 21:02:16,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 279 transitions. [2023-11-21 21:02:16,779 INFO L240 hiAutomatonCegarLoop]: Abstraction has 213 states and 279 transitions. [2023-11-21 21:02:16,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 21:02:16,785 INFO L428 stractBuchiCegarLoop]: Abstraction has 213 states and 279 transitions. [2023-11-21 21:02:16,785 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-21 21:02:16,785 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 213 states and 279 transitions. [2023-11-21 21:02:16,788 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 149 [2023-11-21 21:02:16,788 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 21:02:16,788 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 21:02:16,789 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:02:16,789 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] [2023-11-21 21:02:16,790 INFO L748 eck$LassoCheckResult]: Stem: 765#$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);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 766#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret5#1, main_~retValue_acc~2#1, main_~tmp~0#1;havoc main_~retValue_acc~2#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 763#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 764#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 864#valid_product_returnLabel#1 main_#t~ret5#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret5#1;havoc main_#t~ret5#1; 808#L177 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 809#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 842#__utac_acc__Specification5_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification5_spec__1 } 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~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 830#L442-2 [2023-11-21 21:02:16,790 INFO L750 eck$LassoCheckResult]: Loop: 830#L442-2 assume !false; 822#L443 assume test_~splverifierCounter~0#1 < 4; 823#L444 havoc test_#t~nondet19#1;test_~tmp~5#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 849#L452 assume !(0 != test_~tmp~5#1); 786#L452-2 havoc test_#t~nondet20#1;test_~tmp___0~1#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; 806#L462 assume !(0 != test_~tmp___0~1#1); 748#L462-2 havoc test_#t~nondet21#1;test_~tmp___2~0#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; 749#L472 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 769#startSystem_returnLabel#1 assume { :end_inline_startSystem } true; 789#L480-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret23#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~4#1;havoc isPumpRunning_~retValue_acc~4#1;isPumpRunning_~retValue_acc~4#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~4#1; 804#isPumpRunning_returnLabel#1 __utac_acc__Specification5_spec__2_#t~ret23#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~4#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret23#1;havoc __utac_acc__Specification5_spec__2_#t~ret23#1; 853#__utac_acc__Specification5_spec__2_returnLabel#1 havoc __utac_acc__Specification5_spec__2_#t~ret23#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true; 854#L221 assume !(0 != ~pumpRunning~0); 827#L221-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret7#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 814#L279 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret6#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1#1; 815#L253-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 727#processEnvironment__wrappee__base_returnLabel#4 assume { :end_inline_processEnvironment__wrappee__base } true; 728#L253-3 havoc processEnvironment__wrappee__methaneQuery_#t~ret6#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 760#L279-1 havoc processEnvironment_#t~ret7#1, processEnvironment_~tmp~2#1;assume { :end_inline_processEnvironment } true; 817#L228-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret24#1, __utac_acc__Specification5_spec__3_#t~ret25#1, __utac_acc__Specification5_spec__3_~tmp~6#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~6#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; 818#getWaterLevel_returnLabel#1 __utac_acc__Specification5_spec__3_#t~ret24#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~6#1 := __utac_acc__Specification5_spec__3_#t~ret24#1;havoc __utac_acc__Specification5_spec__3_#t~ret24#1; 828#L529 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~6#1); 863#L529-1 havoc __utac_acc__Specification5_spec__3_#t~ret24#1, __utac_acc__Specification5_spec__3_#t~ret25#1, __utac_acc__Specification5_spec__3_~tmp~6#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true; 829#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 830#L442-2 [2023-11-21 21:02:16,791 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:16,791 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2023-11-21 21:02:16,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:16,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340067061] [2023-11-21 21:02:16,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:16,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:16,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:02:16,805 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 21:02:16,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:02:16,831 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 21:02:16,832 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:16,832 INFO L85 PathProgramCache]: Analyzing trace with hash -818155752, now seen corresponding path program 1 times [2023-11-21 21:02:16,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:16,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130658469] [2023-11-21 21:02:16,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:16,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:16,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:02:16,841 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 21:02:16,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:02:16,850 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 21:02:16,851 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:16,851 INFO L85 PathProgramCache]: Analyzing trace with hash -1054300415, now seen corresponding path program 1 times [2023-11-21 21:02:16,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:16,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613234659] [2023-11-21 21:02:16,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:16,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:16,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:16,997 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 21:02:16,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:02:16,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613234659] [2023-11-21 21:02:16,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613234659] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:02:16,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:02:16,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 21:02:17,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640806935] [2023-11-21 21:02:17,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:02:17,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:02:17,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 21:02:17,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-21 21:02:17,160 INFO L87 Difference]: Start difference. First operand 213 states and 279 transitions. cyclomatic complexity: 69 Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 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 21:02:17,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 21:02:17,342 INFO L93 Difference]: Finished difference Result 680 states and 887 transitions. [2023-11-21 21:02:17,342 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 680 states and 887 transitions. [2023-11-21 21:02:17,349 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 461 [2023-11-21 21:02:17,355 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 680 states to 680 states and 887 transitions. [2023-11-21 21:02:17,356 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 680 [2023-11-21 21:02:17,361 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 680 [2023-11-21 21:02:17,361 INFO L73 IsDeterministic]: Start isDeterministic. Operand 680 states and 887 transitions. [2023-11-21 21:02:17,369 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:02:17,369 INFO L218 hiAutomatonCegarLoop]: Abstraction has 680 states and 887 transitions. [2023-11-21 21:02:17,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states and 887 transitions. [2023-11-21 21:02:17,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 412. [2023-11-21 21:02:17,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 412 states have (on average 1.2912621359223302) internal successors, (532), 411 states have internal predecessors, (532), 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 21:02:17,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 532 transitions. [2023-11-21 21:02:17,416 INFO L240 hiAutomatonCegarLoop]: Abstraction has 412 states and 532 transitions. [2023-11-21 21:02:17,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-21 21:02:17,417 INFO L428 stractBuchiCegarLoop]: Abstraction has 412 states and 532 transitions. [2023-11-21 21:02:17,417 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-21 21:02:17,418 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 412 states and 532 transitions. [2023-11-21 21:02:17,421 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 294 [2023-11-21 21:02:17,421 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 21:02:17,421 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 21:02:17,424 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:02:17,424 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] [2023-11-21 21:02:17,424 INFO L748 eck$LassoCheckResult]: Stem: 1673#$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);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 1674#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret5#1, main_~retValue_acc~2#1, main_~tmp~0#1;havoc main_~retValue_acc~2#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 1671#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1672#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 1789#valid_product_returnLabel#1 main_#t~ret5#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret5#1;havoc main_#t~ret5#1; 1720#L177 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 1721#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 1757#__utac_acc__Specification5_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification5_spec__1 } 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~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1821#L442-2 [2023-11-21 21:02:17,425 INFO L750 eck$LassoCheckResult]: Loop: 1821#L442-2 assume !false; 1925#L443 assume test_~splverifierCounter~0#1 < 4; 1924#L444 havoc test_#t~nondet19#1;test_~tmp~5#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 1922#L452 assume !(0 != test_~tmp~5#1); 1920#L452-2 havoc test_#t~nondet20#1;test_~tmp___0~1#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; 1771#L462 assume !(0 != test_~tmp___0~1#1); 1656#L462-2 havoc test_#t~nondet21#1;test_~tmp___2~0#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; 1657#L472 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 1677#startSystem_returnLabel#1 assume { :end_inline_startSystem } true; 1874#L480-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret23#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~4#1;havoc isPumpRunning_~retValue_acc~4#1;isPumpRunning_~retValue_acc~4#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~4#1; 1815#isPumpRunning_returnLabel#1 __utac_acc__Specification5_spec__2_#t~ret23#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~4#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret23#1;havoc __utac_acc__Specification5_spec__2_#t~ret23#1; 1769#__utac_acc__Specification5_spec__2_returnLabel#1 havoc __utac_acc__Specification5_spec__2_#t~ret23#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true; 1770#L221 assume !(0 != ~pumpRunning~0); 1857#L221-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret7#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 1855#L279 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret6#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1#1; 1854#L253-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 1634#processEnvironment__wrappee__base_returnLabel#4 assume { :end_inline_processEnvironment__wrappee__base } true; 1635#L253-3 havoc processEnvironment__wrappee__methaneQuery_#t~ret6#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 1829#L279-1 havoc processEnvironment_#t~ret7#1, processEnvironment_~tmp~2#1;assume { :end_inline_processEnvironment } true; 1728#L228-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret24#1, __utac_acc__Specification5_spec__3_#t~ret25#1, __utac_acc__Specification5_spec__3_~tmp~6#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~6#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; 1729#getWaterLevel_returnLabel#1 __utac_acc__Specification5_spec__3_#t~ret24#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~6#1 := __utac_acc__Specification5_spec__3_#t~ret24#1;havoc __utac_acc__Specification5_spec__3_#t~ret24#1; 1788#L529 assume 2 != __utac_acc__Specification5_spec__3_~tmp~6#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~4#1;havoc isPumpRunning_~retValue_acc~4#1;isPumpRunning_~retValue_acc~4#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~4#1; 1746#isPumpRunning_returnLabel#2 __utac_acc__Specification5_spec__3_#t~ret25#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~4#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~2#1 := __utac_acc__Specification5_spec__3_#t~ret25#1;havoc __utac_acc__Specification5_spec__3_#t~ret25#1; 1747#L533 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~2#1); 1787#L529-1 havoc __utac_acc__Specification5_spec__3_#t~ret24#1, __utac_acc__Specification5_spec__3_#t~ret25#1, __utac_acc__Specification5_spec__3_~tmp~6#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true; 1834#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1821#L442-2 [2023-11-21 21:02:17,425 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:17,425 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2023-11-21 21:02:17,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:17,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091866881] [2023-11-21 21:02:17,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:17,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:17,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:02:17,446 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 21:02:17,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:02:17,465 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 21:02:17,466 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:17,466 INFO L85 PathProgramCache]: Analyzing trace with hash -289665677, now seen corresponding path program 1 times [2023-11-21 21:02:17,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:17,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823422311] [2023-11-21 21:02:17,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:17,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:17,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:02:17,482 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 21:02:17,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:02:17,501 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 21:02:17,501 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:17,502 INFO L85 PathProgramCache]: Analyzing trace with hash 408579868, now seen corresponding path program 1 times [2023-11-21 21:02:17,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:17,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287230916] [2023-11-21 21:02:17,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:17,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:17,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:02:17,531 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 21:02:17,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:02:17,554 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 21:02:18,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:02:18,768 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 21:02:18,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:02:18,861 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.11 09:02:18 BoogieIcfgContainer [2023-11-21 21:02:18,861 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-21 21:02:18,862 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 21:02:18,862 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 21:02:18,862 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 21:02:18,863 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:02:15" (3/4) ... [2023-11-21 21:02:18,864 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2023-11-21 21:02:18,945 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c541203d-2fd7-4aa5-a1cc-c47a02b2cd1e/bin/uautomizer-verify-bycVGegfSx/witness.graphml [2023-11-21 21:02:18,945 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 21:02:18,946 INFO L158 Benchmark]: Toolchain (without parser) took 4619.41ms. Allocated memory was 165.7MB in the beginning and 199.2MB in the end (delta: 33.6MB). Free memory was 118.9MB in the beginning and 159.6MB in the end (delta: -40.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 21:02:18,946 INFO L158 Benchmark]: CDTParser took 2.14ms. Allocated memory is still 125.8MB. Free memory is still 69.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 21:02:18,946 INFO L158 Benchmark]: CACSL2BoogieTranslator took 507.31ms. Allocated memory is still 165.7MB. Free memory was 118.9MB in the beginning and 99.5MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-21 21:02:18,947 INFO L158 Benchmark]: Boogie Procedure Inliner took 83.18ms. Allocated memory is still 165.7MB. Free memory was 98.9MB in the beginning and 95.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 21:02:18,947 INFO L158 Benchmark]: Boogie Preprocessor took 118.97ms. Allocated memory is still 165.7MB. Free memory was 95.8MB in the beginning and 92.6MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 21:02:18,948 INFO L158 Benchmark]: RCFGBuilder took 750.73ms. Allocated memory is still 165.7MB. Free memory was 92.6MB in the beginning and 120.9MB in the end (delta: -28.3MB). Peak memory consumption was 17.4MB. Max. memory is 16.1GB. [2023-11-21 21:02:18,949 INFO L158 Benchmark]: BuchiAutomizer took 3068.16ms. Allocated memory was 165.7MB in the beginning and 199.2MB in the end (delta: 33.6MB). Free memory was 120.9MB in the beginning and 162.8MB in the end (delta: -41.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 21:02:18,949 INFO L158 Benchmark]: Witness Printer took 83.36ms. Allocated memory is still 199.2MB. Free memory was 162.8MB in the beginning and 159.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 21:02:18,951 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.14ms. Allocated memory is still 125.8MB. Free memory is still 69.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 507.31ms. Allocated memory is still 165.7MB. Free memory was 118.9MB in the beginning and 99.5MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 83.18ms. Allocated memory is still 165.7MB. Free memory was 98.9MB in the beginning and 95.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 118.97ms. Allocated memory is still 165.7MB. Free memory was 95.8MB in the beginning and 92.6MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 750.73ms. Allocated memory is still 165.7MB. Free memory was 92.6MB in the beginning and 120.9MB in the end (delta: -28.3MB). Peak memory consumption was 17.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 3068.16ms. Allocated memory was 165.7MB in the beginning and 199.2MB in the end (delta: 33.6MB). Free memory was 120.9MB in the beginning and 162.8MB in the end (delta: -41.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 83.36ms. Allocated memory is still 199.2MB. Free memory was 162.8MB in the beginning and 159.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] - GenericResultAtLocation [Line: 87]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [87] - GenericResultAtLocation [Line: 190]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [190] - GenericResultAtLocation [Line: 199]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [199] - GenericResultAtLocation [Line: 431]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [431] - GenericResultAtLocation [Line: 500]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [500] - GenericResultAtLocation [Line: 550]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [550] - GenericResultAtLocation [Line: 916]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [916] * 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 412 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.9s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.3s. 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 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 556 StatesRemovedByMinimization, 2 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, 1706 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1706 mSDsluCounter, 2520 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2012 mSDsCounter, 28 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 171 IncrementalHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 28 mSolverCounterUnsat, 508 mSDtfsCounter, 171 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc2 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: 442]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L88] int cleanupTimeShifts = 4; [L209] int pumpRunning = 0; [L210] int systemActive = 1; [L502] int switchedOnBeforeTS ; [L720] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L917] int waterLevel = 1; [L918] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L168] int retValue_acc ; [L169] int tmp ; [L173] FCALL select_helpers() [L174] FCALL select_features() [L175] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L175] RET, EXPR valid_product() [L175] tmp = valid_product() [L177] COND TRUE \read(tmp) [L179] FCALL setup() [L180] CALL runTest() [L161] CALL __utac_acc__Specification5_spec__1() [L507] switchedOnBeforeTS = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L161] RET __utac_acc__Specification5_spec__1() [L162] CALL test() [L433] int splverifierCounter ; [L434] int tmp ; [L435] int tmp___0 ; [L436] int tmp___1 ; [L437] int tmp___2 ; [L440] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] Loop: [L442] COND TRUE 1 [L444] COND TRUE splverifierCounter < 4 [L450] tmp = __VERIFIER_nondet_int() [L452] COND FALSE !(\read(tmp)) [L460] tmp___0 = __VERIFIER_nondet_int() [L462] COND FALSE !(\read(tmp___0)) [L470] tmp___2 = __VERIFIER_nondet_int() [L472] COND TRUE \read(tmp___2) [L474] CALL startSystem() [L427] systemActive = 1 [L474] RET startSystem() [L489] CALL timeShift() [L219] CALL __utac_acc__Specification5_spec__2() [L516] CALL, EXPR isPumpRunning() [L345] int retValue_acc ; [L348] retValue_acc = pumpRunning [L349] return (retValue_acc); [L516] RET, EXPR isPumpRunning() [L516] switchedOnBeforeTS = isPumpRunning() [L219] RET __utac_acc__Specification5_spec__2() [L221] COND FALSE !(\read(pumpRunning)) [L228] COND TRUE \read(systemActive) [L230] CALL processEnvironment() [L276] int tmp ; [L279] COND FALSE !(\read(pumpRunning)) [L294] CALL processEnvironment__wrappee__methaneQuery() [L250] int tmp ; [L253] COND FALSE !(\read(pumpRunning)) [L268] FCALL processEnvironment__wrappee__base() [L294] RET processEnvironment__wrappee__methaneQuery() [L230] RET processEnvironment() [L236] CALL __utac_acc__Specification5_spec__3() [L522] int tmp ; [L523] int tmp___0 ; [L527] CALL, EXPR getWaterLevel() [L988] int retValue_acc ; [L991] retValue_acc = waterLevel [L992] return (retValue_acc); [L527] RET, EXPR getWaterLevel() [L527] tmp = getWaterLevel() [L529] COND TRUE tmp != 2 [L531] CALL, EXPR isPumpRunning() [L345] int retValue_acc ; [L348] retValue_acc = pumpRunning [L349] return (retValue_acc); [L531] RET, EXPR isPumpRunning() [L531] tmp___0 = isPumpRunning() [L533] COND FALSE !(\read(tmp___0)) [L236] RET __utac_acc__Specification5_spec__3() [L489] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 442]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L88] int cleanupTimeShifts = 4; [L209] int pumpRunning = 0; [L210] int systemActive = 1; [L502] int switchedOnBeforeTS ; [L720] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L917] int waterLevel = 1; [L918] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L168] int retValue_acc ; [L169] int tmp ; [L173] FCALL select_helpers() [L174] FCALL select_features() [L175] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L175] RET, EXPR valid_product() [L175] tmp = valid_product() [L177] COND TRUE \read(tmp) [L179] FCALL setup() [L180] CALL runTest() [L161] CALL __utac_acc__Specification5_spec__1() [L507] switchedOnBeforeTS = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L161] RET __utac_acc__Specification5_spec__1() [L162] CALL test() [L433] int splverifierCounter ; [L434] int tmp ; [L435] int tmp___0 ; [L436] int tmp___1 ; [L437] int tmp___2 ; [L440] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] Loop: [L442] COND TRUE 1 [L444] COND TRUE splverifierCounter < 4 [L450] tmp = __VERIFIER_nondet_int() [L452] COND FALSE !(\read(tmp)) [L460] tmp___0 = __VERIFIER_nondet_int() [L462] COND FALSE !(\read(tmp___0)) [L470] tmp___2 = __VERIFIER_nondet_int() [L472] COND TRUE \read(tmp___2) [L474] CALL startSystem() [L427] systemActive = 1 [L474] RET startSystem() [L489] CALL timeShift() [L219] CALL __utac_acc__Specification5_spec__2() [L516] CALL, EXPR isPumpRunning() [L345] int retValue_acc ; [L348] retValue_acc = pumpRunning [L349] return (retValue_acc); [L516] RET, EXPR isPumpRunning() [L516] switchedOnBeforeTS = isPumpRunning() [L219] RET __utac_acc__Specification5_spec__2() [L221] COND FALSE !(\read(pumpRunning)) [L228] COND TRUE \read(systemActive) [L230] CALL processEnvironment() [L276] int tmp ; [L279] COND FALSE !(\read(pumpRunning)) [L294] CALL processEnvironment__wrappee__methaneQuery() [L250] int tmp ; [L253] COND FALSE !(\read(pumpRunning)) [L268] FCALL processEnvironment__wrappee__base() [L294] RET processEnvironment__wrappee__methaneQuery() [L230] RET processEnvironment() [L236] CALL __utac_acc__Specification5_spec__3() [L522] int tmp ; [L523] int tmp___0 ; [L527] CALL, EXPR getWaterLevel() [L988] int retValue_acc ; [L991] retValue_acc = waterLevel [L992] return (retValue_acc); [L527] RET, EXPR getWaterLevel() [L527] tmp = getWaterLevel() [L529] COND TRUE tmp != 2 [L531] CALL, EXPR isPumpRunning() [L345] int retValue_acc ; [L348] retValue_acc = pumpRunning [L349] return (retValue_acc); [L531] RET, EXPR isPumpRunning() [L531] tmp___0 = isPumpRunning() [L533] COND FALSE !(\read(tmp___0)) [L236] RET __utac_acc__Specification5_spec__3() [L489] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2023-11-21 21:02:19,012 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c541203d-2fd7-4aa5-a1cc-c47a02b2cd1e/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)