./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product56.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8724bd91-7f30-4664-b0cd-4fc108ca62c6/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8724bd91-7f30-4664-b0cd-4fc108ca62c6/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8724bd91-7f30-4664-b0cd-4fc108ca62c6/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8724bd91-7f30-4664-b0cd-4fc108ca62c6/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product56.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8724bd91-7f30-4664-b0cd-4fc108ca62c6/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8724bd91-7f30-4664-b0cd-4fc108ca62c6/bin/uautomizer-verify-84ZbGMXZE1 --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 03daf3415808298ae6016bdc33e04662b3dd63f1cba0029f4033bbf040a042d2 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 11:59:19,588 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 11:59:19,644 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8724bd91-7f30-4664-b0cd-4fc108ca62c6/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-12-02 11:59:19,649 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 11:59:19,650 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 11:59:19,672 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 11:59:19,672 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 11:59:19,673 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 11:59:19,673 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 11:59:19,673 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 11:59:19,673 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 11:59:19,673 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 11:59:19,674 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 11:59:19,674 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-12-02 11:59:19,674 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-12-02 11:59:19,674 INFO L153 SettingsManager]: * Use old map elimination=false [2024-12-02 11:59:19,674 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-12-02 11:59:19,674 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-12-02 11:59:19,674 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-12-02 11:59:19,674 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 11:59:19,674 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-12-02 11:59:19,674 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 11:59:19,674 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 11:59:19,675 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 11:59:19,675 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 11:59:19,675 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-12-02 11:59:19,675 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-12-02 11:59:19,675 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-12-02 11:59:19,675 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 11:59:19,675 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 11:59:19,675 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 11:59:19,675 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-12-02 11:59:19,675 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 11:59:19,675 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 11:59:19,675 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 11:59:19,676 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:59:19,676 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 11:59:19,676 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-12-02 11:59:19,676 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-12-02 11:59:19,676 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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_8724bd91-7f30-4664-b0cd-4fc108ca62c6/bin/uautomizer-verify-84ZbGMXZE1 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 -> 03daf3415808298ae6016bdc33e04662b3dd63f1cba0029f4033bbf040a042d2 [2024-12-02 11:59:19,887 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 11:59:19,893 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 11:59:19,895 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 11:59:19,896 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 11:59:19,896 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 11:59:19,897 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8724bd91-7f30-4664-b0cd-4fc108ca62c6/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/product-lines/minepump_spec4_product56.cil.c [2024-12-02 11:59:22,583 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8724bd91-7f30-4664-b0cd-4fc108ca62c6/bin/uautomizer-verify-84ZbGMXZE1/data/26478e0fc/00899148304b4977a2642ca6be608574/FLAG40a393d5d [2024-12-02 11:59:22,860 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 11:59:22,861 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8724bd91-7f30-4664-b0cd-4fc108ca62c6/sv-benchmarks/c/product-lines/minepump_spec4_product56.cil.c [2024-12-02 11:59:22,874 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8724bd91-7f30-4664-b0cd-4fc108ca62c6/bin/uautomizer-verify-84ZbGMXZE1/data/26478e0fc/00899148304b4977a2642ca6be608574/FLAG40a393d5d [2024-12-02 11:59:23,179 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8724bd91-7f30-4664-b0cd-4fc108ca62c6/bin/uautomizer-verify-84ZbGMXZE1/data/26478e0fc/00899148304b4977a2642ca6be608574 [2024-12-02 11:59:23,182 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 11:59:23,183 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 11:59:23,184 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 11:59:23,184 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 11:59:23,188 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 11:59:23,189 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:59:23" (1/1) ... [2024-12-02 11:59:23,190 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17e97cc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:59:23, skipping insertion in model container [2024-12-02 11:59:23,190 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:59:23" (1/1) ... [2024-12-02 11:59:23,218 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 11:59:23,433 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:59:23,445 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 11:59:23,453 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [49] [2024-12-02 11:59:23,454 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [308] [2024-12-02 11:59:23,454 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [674] [2024-12-02 11:59:23,454 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [746] [2024-12-02 11:59:23,454 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [774] [2024-12-02 11:59:23,455 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [873] [2024-12-02 11:59:23,455 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [882] [2024-12-02 11:59:23,455 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [985] [2024-12-02 11:59:23,503 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:59:23,523 INFO L204 MainTranslator]: Completed translation [2024-12-02 11:59:23,523 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:59:23 WrapperNode [2024-12-02 11:59:23,523 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 11:59:23,525 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 11:59:23,525 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 11:59:23,525 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 11:59:23,532 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:59:23" (1/1) ... [2024-12-02 11:59:23,544 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:59:23" (1/1) ... [2024-12-02 11:59:23,583 INFO L138 Inliner]: procedures = 58, calls = 106, calls flagged for inlining = 59, calls inlined = 143, statements flattened = 959 [2024-12-02 11:59:23,584 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 11:59:23,584 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 11:59:23,584 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 11:59:23,584 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 11:59:23,594 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:59:23" (1/1) ... [2024-12-02 11:59:23,594 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:59:23" (1/1) ... [2024-12-02 11:59:23,598 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:59:23" (1/1) ... [2024-12-02 11:59:23,616 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-12-02 11:59:23,616 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:59:23" (1/1) ... [2024-12-02 11:59:23,616 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:59:23" (1/1) ... [2024-12-02 11:59:23,629 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:59:23" (1/1) ... [2024-12-02 11:59:23,631 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:59:23" (1/1) ... [2024-12-02 11:59:23,639 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:59:23" (1/1) ... [2024-12-02 11:59:23,641 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:59:23" (1/1) ... [2024-12-02 11:59:23,643 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:59:23" (1/1) ... [2024-12-02 11:59:23,647 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 11:59:23,648 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 11:59:23,648 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 11:59:23,649 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 11:59:23,649 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:59:23" (1/1) ... [2024-12-02 11:59:23,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:59:23,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8724bd91-7f30-4664-b0cd-4fc108ca62c6/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:59:23,686 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8724bd91-7f30-4664-b0cd-4fc108ca62c6/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:59:23,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8724bd91-7f30-4664-b0cd-4fc108ca62c6/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-12-02 11:59:23,715 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 11:59:23,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 11:59:23,716 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 11:59:23,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 11:59:23,788 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 11:59:23,789 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 11:59:24,406 INFO L? ?]: Removed 235 outVars from TransFormulas that were not future-live. [2024-12-02 11:59:24,406 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 11:59:24,421 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 11:59:24,421 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-12-02 11:59:24,422 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:59:24 BoogieIcfgContainer [2024-12-02 11:59:24,422 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 11:59:24,423 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-12-02 11:59:24,423 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-12-02 11:59:24,428 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-12-02 11:59:24,429 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-12-02 11:59:24,429 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.12 11:59:23" (1/3) ... [2024-12-02 11:59:24,430 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1182c1e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 11:59:24, skipping insertion in model container [2024-12-02 11:59:24,430 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-12-02 11:59:24,430 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:59:23" (2/3) ... [2024-12-02 11:59:24,430 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1182c1e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 11:59:24, skipping insertion in model container [2024-12-02 11:59:24,430 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-12-02 11:59:24,431 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:59:24" (3/3) ... [2024-12-02 11:59:24,432 INFO L363 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product56.cil.c [2024-12-02 11:59:24,482 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-12-02 11:59:24,482 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-12-02 11:59:24,482 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-12-02 11:59:24,482 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-12-02 11:59:24,482 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-12-02 11:59:24,482 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-12-02 11:59:24,482 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-12-02 11:59:24,482 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-12-02 11:59:24,488 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 276 states, 275 states have (on average 1.3672727272727272) internal successors, (376), 275 states have internal predecessors, (376), 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) [2024-12-02 11:59:24,512 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 181 [2024-12-02 11:59:24,512 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 11:59:24,512 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 11:59:24,517 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:59:24,517 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:59:24,517 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-12-02 11:59:24,517 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 276 states, 275 states have (on average 1.3672727272727272) internal successors, (376), 275 states have internal predecessors, (376), 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) [2024-12-02 11:59:24,523 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 181 [2024-12-02 11:59:24,523 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 11:59:24,524 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 11:59:24,524 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:59:24,524 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:59:24,528 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;" "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;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "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;" "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;" "assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet41#1, test_#t~nondet42#1, test_#t~nondet43#1, test_#t~nondet44#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-12-02 11:59:24,528 INFO L749 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet41#1;test_~tmp~8#1 := test_#t~nondet41#1;havoc test_#t~nondet41#1;" "assume !(0 != test_~tmp~8#1);" "havoc test_#t~nondet42#1;test_~tmp___0~2#1 := test_#t~nondet42#1;havoc test_#t~nondet42#1;" "assume !(0 != test_~tmp___0~2#1);" "havoc test_#t~nondet43#1;test_~tmp___2~0#1 := test_#t~nondet43#1;havoc test_#t~nondet43#1;" "assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1;" "assume { :end_inline_startSystem } true;" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume !(0 != ~systemActive~0);" "assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret45#1, __utac_acc__Specification4_spec__1_#t~ret46#1, __utac_acc__Specification4_spec__1_~tmp~9#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification4_spec__1_~tmp~9#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~9#1;havoc getWaterLevel_~retValue_acc~9#1;getWaterLevel_~retValue_acc~9#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~9#1;" "__utac_acc__Specification4_spec__1_#t~ret45#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~9#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~9#1 := __utac_acc__Specification4_spec__1_#t~ret45#1;havoc __utac_acc__Specification4_spec__1_#t~ret45#1;" "assume !(0 == __utac_acc__Specification4_spec__1_~tmp~9#1);" "havoc __utac_acc__Specification4_spec__1_#t~ret45#1, __utac_acc__Specification4_spec__1_#t~ret46#1, __utac_acc__Specification4_spec__1_~tmp~9#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :end_inline___utac_acc__Specification4_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2024-12-02 11:59:24,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:59:24,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2024-12-02 11:59:24,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 11:59:24,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147557406] [2024-12-02 11:59:24,538 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:59:24,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:59:24,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:59:24,618 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 11:59:24,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:59:24,648 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 11:59:24,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:59:24,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1553609999, now seen corresponding path program 1 times [2024-12-02 11:59:24,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 11:59:24,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314081690] [2024-12-02 11:59:24,651 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:59:24,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:59:24,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:59:24,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-12-02 11:59:24,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314081690] [2024-12-02 11:59:24,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314081690] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:59:24,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [338757896] [2024-12-02 11:59:24,727 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:59:24,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:59:24,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8724bd91-7f30-4664-b0cd-4fc108ca62c6/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:59:24,729 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8724bd91-7f30-4664-b0cd-4fc108ca62c6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:59:24,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8724bd91-7f30-4664-b0cd-4fc108ca62c6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 11:59:24,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:59:24,781 INFO L256 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 11:59:24,782 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:59:24,801 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:59:24,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [338757896] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:59:24,819 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 11:59:24,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-12-02 11:59:24,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441951235] [2024-12-02 11:59:24,820 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 11:59:24,823 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-12-02 11:59:24,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-12-02 11:59:24,848 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:59:24,848 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:59:24,850 INFO L87 Difference]: Start difference. First operand has 276 states, 275 states have (on average 1.3672727272727272) internal successors, (376), 275 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2024-12-02 11:59:24,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:59:24,918 INFO L93 Difference]: Finished difference Result 531 states and 713 transitions. [2024-12-02 11:59:24,919 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 531 states and 713 transitions. [2024-12-02 11:59:24,926 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 348 [2024-12-02 11:59:24,935 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 531 states to 511 states and 692 transitions. [2024-12-02 11:59:24,936 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 511 [2024-12-02 11:59:24,937 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 511 [2024-12-02 11:59:24,937 INFO L73 IsDeterministic]: Start isDeterministic. Operand 511 states and 692 transitions. [2024-12-02 11:59:24,940 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-12-02 11:59:24,940 INFO L218 hiAutomatonCegarLoop]: Abstraction has 511 states and 692 transitions. [2024-12-02 11:59:24,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states and 692 transitions. [2024-12-02 11:59:24,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 508. [2024-12-02 11:59:24,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 508 states, 508 states have (on average 1.3543307086614174) internal successors, (688), 507 states have internal predecessors, (688), 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) [2024-12-02 11:59:24,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 688 transitions. [2024-12-02 11:59:24,982 INFO L240 hiAutomatonCegarLoop]: Abstraction has 508 states and 688 transitions. [2024-12-02 11:59:24,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:59:24,986 INFO L425 stractBuchiCegarLoop]: Abstraction has 508 states and 688 transitions. [2024-12-02 11:59:24,986 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-12-02 11:59:24,986 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 508 states and 688 transitions. [2024-12-02 11:59:24,989 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 345 [2024-12-02 11:59:24,990 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 11:59:24,990 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 11:59:24,990 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:59:24,990 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] [2024-12-02 11:59:24,990 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;" "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;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "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;" "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;" "assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet41#1, test_#t~nondet42#1, test_#t~nondet43#1, test_#t~nondet44#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-12-02 11:59:24,991 INFO L749 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet41#1;test_~tmp~8#1 := test_#t~nondet41#1;havoc test_#t~nondet41#1;" "assume !(0 != test_~tmp~8#1);" "havoc test_#t~nondet42#1;test_~tmp___0~2#1 := test_#t~nondet42#1;havoc test_#t~nondet42#1;" "assume !(0 != test_~tmp___0~2#1);" "havoc test_#t~nondet43#1;test_~tmp___2~0#1 := test_#t~nondet43#1;havoc test_#t~nondet43#1;" "assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1;" "assume { :end_inline_startSystem } true;" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret6#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1;" "assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret7#1, isMethaneAlarm_~retValue_acc~0#1;havoc isMethaneAlarm_~retValue_acc~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;isMethaneLevelCritical_~retValue_acc~8#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~8#1;" "isMethaneAlarm_#t~ret7#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~0#1 := isMethaneAlarm_#t~ret7#1;havoc isMethaneAlarm_#t~ret7#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~0#1;" "processEnvironment_#t~ret6#1 := isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret7#1, isMethaneAlarm_~retValue_acc~0#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~2#1 := processEnvironment_#t~ret6#1;havoc processEnvironment_#t~ret6#1;" "assume 0 != processEnvironment_~tmp~2#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0;" "assume { :end_inline_deactivatePump } true;" "havoc processEnvironment_#t~ret6#1, processEnvironment_~tmp~2#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret45#1, __utac_acc__Specification4_spec__1_#t~ret46#1, __utac_acc__Specification4_spec__1_~tmp~9#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification4_spec__1_~tmp~9#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~9#1;havoc getWaterLevel_~retValue_acc~9#1;getWaterLevel_~retValue_acc~9#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~9#1;" "__utac_acc__Specification4_spec__1_#t~ret45#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~9#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~9#1 := __utac_acc__Specification4_spec__1_#t~ret45#1;havoc __utac_acc__Specification4_spec__1_#t~ret45#1;" "assume !(0 == __utac_acc__Specification4_spec__1_~tmp~9#1);" "havoc __utac_acc__Specification4_spec__1_#t~ret45#1, __utac_acc__Specification4_spec__1_#t~ret46#1, __utac_acc__Specification4_spec__1_~tmp~9#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :end_inline___utac_acc__Specification4_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2024-12-02 11:59:24,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:59:24,991 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2024-12-02 11:59:24,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 11:59:24,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458199388] [2024-12-02 11:59:24,992 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:59:24,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:59:25,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:59:25,004 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 11:59:25,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:59:25,016 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 11:59:25,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:59:25,017 INFO L85 PathProgramCache]: Analyzing trace with hash -943329800, now seen corresponding path program 1 times [2024-12-02 11:59:25,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 11:59:25,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250161809] [2024-12-02 11:59:25,017 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:59:25,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:59:25,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:59:25,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-12-02 11:59:25,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250161809] [2024-12-02 11:59:25,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250161809] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:59:25,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [580408534] [2024-12-02 11:59:25,048 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:59:25,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:59:25,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8724bd91-7f30-4664-b0cd-4fc108ca62c6/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:59:25,051 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8724bd91-7f30-4664-b0cd-4fc108ca62c6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:59:25,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8724bd91-7f30-4664-b0cd-4fc108ca62c6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 11:59:25,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:59:25,098 INFO L256 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 11:59:25,099 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:59:25,104 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:59:25,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [580408534] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:59:25,114 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 11:59:25,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-12-02 11:59:25,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38701410] [2024-12-02 11:59:25,114 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 11:59:25,115 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-12-02 11:59:25,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-12-02 11:59:25,115 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:59:25,115 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:59:25,116 INFO L87 Difference]: Start difference. First operand 508 states and 688 transitions. cyclomatic complexity: 183 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) [2024-12-02 11:59:25,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:59:25,232 INFO L93 Difference]: Finished difference Result 526 states and 675 transitions. [2024-12-02 11:59:25,232 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 526 states and 675 transitions. [2024-12-02 11:59:25,236 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 367 [2024-12-02 11:59:25,238 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 526 states to 526 states and 675 transitions. [2024-12-02 11:59:25,238 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 526 [2024-12-02 11:59:25,239 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 526 [2024-12-02 11:59:25,239 INFO L73 IsDeterministic]: Start isDeterministic. Operand 526 states and 675 transitions. [2024-12-02 11:59:25,241 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-12-02 11:59:25,241 INFO L218 hiAutomatonCegarLoop]: Abstraction has 526 states and 675 transitions. [2024-12-02 11:59:25,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states and 675 transitions. [2024-12-02 11:59:25,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 526. [2024-12-02 11:59:25,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 526 states, 526 states have (on average 1.2832699619771863) internal successors, (675), 525 states have internal predecessors, (675), 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) [2024-12-02 11:59:25,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 675 transitions. [2024-12-02 11:59:25,257 INFO L240 hiAutomatonCegarLoop]: Abstraction has 526 states and 675 transitions. [2024-12-02 11:59:25,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:59:25,259 INFO L425 stractBuchiCegarLoop]: Abstraction has 526 states and 675 transitions. [2024-12-02 11:59:25,259 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-12-02 11:59:25,259 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 526 states and 675 transitions. [2024-12-02 11:59:25,261 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 367 [2024-12-02 11:59:25,261 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 11:59:25,261 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 11:59:25,262 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:59:25,262 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] [2024-12-02 11:59:25,262 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;" "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;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "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;" "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;" "assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet41#1, test_#t~nondet42#1, test_#t~nondet43#1, test_#t~nondet44#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-12-02 11:59:25,262 INFO L749 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet41#1;test_~tmp~8#1 := test_#t~nondet41#1;havoc test_#t~nondet41#1;" "assume !(0 != test_~tmp~8#1);" "havoc test_#t~nondet42#1;test_~tmp___0~2#1 := test_#t~nondet42#1;havoc test_#t~nondet42#1;" "assume !(0 != test_~tmp___0~2#1);" "havoc test_#t~nondet43#1;test_~tmp___2~0#1 := test_#t~nondet43#1;havoc test_#t~nondet43#1;" "assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1;" "assume { :end_inline_startSystem } true;" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret6#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret5#1, processEnvironment__wrappee__lowWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~1#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1;" "assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret16#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~3#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~3#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~10#1;havoc isHighWaterSensorDry_~retValue_acc~10#1;" "assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~10#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~10#1;" "isHighWaterLevel_#t~ret16#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~10#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~3#1 := isHighWaterLevel_#t~ret16#1;havoc isHighWaterLevel_#t~ret16#1;" "assume 0 != isHighWaterLevel_~tmp~3#1;isHighWaterLevel_~tmp___0~0#1 := 0;" "isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1;" "processEnvironment__wrappee__highWaterSensor_#t~ret4#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret16#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~3#1, isHighWaterLevel_~tmp___0~0#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret4#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1;" "assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true;" "havoc processEnvironment__wrappee__lowWaterSensor_#t~ret5#1, processEnvironment__wrappee__lowWaterSensor_~tmp~1#1;assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true;" "havoc processEnvironment_#t~ret6#1, processEnvironment_~tmp~2#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret45#1, __utac_acc__Specification4_spec__1_#t~ret46#1, __utac_acc__Specification4_spec__1_~tmp~9#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification4_spec__1_~tmp~9#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~9#1;havoc getWaterLevel_~retValue_acc~9#1;getWaterLevel_~retValue_acc~9#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~9#1;" "__utac_acc__Specification4_spec__1_#t~ret45#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~9#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~9#1 := __utac_acc__Specification4_spec__1_#t~ret45#1;havoc __utac_acc__Specification4_spec__1_#t~ret45#1;" "assume !(0 == __utac_acc__Specification4_spec__1_~tmp~9#1);" "havoc __utac_acc__Specification4_spec__1_#t~ret45#1, __utac_acc__Specification4_spec__1_#t~ret46#1, __utac_acc__Specification4_spec__1_~tmp~9#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :end_inline___utac_acc__Specification4_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2024-12-02 11:59:25,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:59:25,263 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2024-12-02 11:59:25,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 11:59:25,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645237017] [2024-12-02 11:59:25,263 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:59:25,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:59:25,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:59:25,272 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 11:59:25,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:59:25,282 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 11:59:25,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:59:25,283 INFO L85 PathProgramCache]: Analyzing trace with hash -1995754738, now seen corresponding path program 1 times [2024-12-02 11:59:25,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 11:59:25,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348537553] [2024-12-02 11:59:25,283 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:59:25,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:59:25,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:59:25,297 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 11:59:25,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:59:25,308 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 11:59:25,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:59:25,309 INFO L85 PathProgramCache]: Analyzing trace with hash -2121489462, now seen corresponding path program 1 times [2024-12-02 11:59:25,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 11:59:25,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280587555] [2024-12-02 11:59:25,309 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:59:25,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:59:25,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:59:25,324 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 11:59:25,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:59:25,355 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 11:59:26,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:59:26,279 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 11:59:26,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:59:26,328 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 02.12 11:59:26 BoogieIcfgContainer [2024-12-02 11:59:26,328 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-12-02 11:59:26,328 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 11:59:26,328 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 11:59:26,329 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 11:59:26,329 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:59:24" (3/4) ... [2024-12-02 11:59:26,331 INFO L143 WitnessPrinter]: Generating witness for non-termination counterexample [2024-12-02 11:59:26,367 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8724bd91-7f30-4664-b0cd-4fc108ca62c6/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 11:59:26,367 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 11:59:26,368 INFO L158 Benchmark]: Toolchain (without parser) took 3185.29ms. Allocated memory is still 142.6MB. Free memory was 116.2MB in the beginning and 47.8MB in the end (delta: 68.4MB). Peak memory consumption was 68.7MB. Max. memory is 16.1GB. [2024-12-02 11:59:26,368 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 142.6MB. Free memory was 80.8MB in the beginning and 80.6MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 11:59:26,368 INFO L158 Benchmark]: CACSL2BoogieTranslator took 340.05ms. Allocated memory is still 142.6MB. Free memory was 116.0MB in the beginning and 97.4MB in the end (delta: 18.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 11:59:26,369 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.22ms. Allocated memory is still 142.6MB. Free memory was 97.4MB in the beginning and 93.5MB in the end (delta: 3.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 11:59:26,369 INFO L158 Benchmark]: Boogie Preprocessor took 63.45ms. Allocated memory is still 142.6MB. Free memory was 93.5MB in the beginning and 89.3MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 11:59:26,369 INFO L158 Benchmark]: RCFGBuilder took 773.46ms. Allocated memory is still 142.6MB. Free memory was 89.3MB in the beginning and 110.2MB in the end (delta: -21.0MB). Peak memory consumption was 48.5MB. Max. memory is 16.1GB. [2024-12-02 11:59:26,369 INFO L158 Benchmark]: BuchiAutomizer took 1905.40ms. Allocated memory is still 142.6MB. Free memory was 110.2MB in the beginning and 51.3MB in the end (delta: 58.9MB). Peak memory consumption was 53.7MB. Max. memory is 16.1GB. [2024-12-02 11:59:26,370 INFO L158 Benchmark]: Witness Printer took 38.81ms. Allocated memory is still 142.6MB. Free memory was 51.3MB in the beginning and 47.8MB in the end (delta: 3.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 11:59:26,372 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 142.6MB. Free memory was 80.8MB in the beginning and 80.6MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 340.05ms. Allocated memory is still 142.6MB. Free memory was 116.0MB in the beginning and 97.4MB in the end (delta: 18.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.22ms. Allocated memory is still 142.6MB. Free memory was 97.4MB in the beginning and 93.5MB in the end (delta: 3.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 63.45ms. Allocated memory is still 142.6MB. Free memory was 93.5MB in the beginning and 89.3MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 773.46ms. Allocated memory is still 142.6MB. Free memory was 89.3MB in the beginning and 110.2MB in the end (delta: -21.0MB). Peak memory consumption was 48.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 1905.40ms. Allocated memory is still 142.6MB. Free memory was 110.2MB in the beginning and 51.3MB in the end (delta: 58.9MB). Peak memory consumption was 53.7MB. Max. memory is 16.1GB. * Witness Printer took 38.81ms. Allocated memory is still 142.6MB. Free memory was 51.3MB in the beginning and 47.8MB in the end (delta: 3.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [49] - GenericResultAtLocation [Line: 308]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [308] - GenericResultAtLocation [Line: 674]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [674] - GenericResultAtLocation [Line: 746]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [746] - GenericResultAtLocation [Line: 774]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [774] - GenericResultAtLocation [Line: 873]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [873] - GenericResultAtLocation [Line: 882]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [882] - GenericResultAtLocation [Line: 985]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [985] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 526 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.8s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 535 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 535 mSDsluCounter, 1108 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 464 mSDsCounter, 38 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 53 IncrementalHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 38 mSolverCounterUnsat, 644 mSDtfsCounter, 53 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 690]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L62] int pumpRunning = 0; [L63] int systemActive = 1; [L478] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L775] int cleanupTimeShifts = 4; [L883] int waterLevel = 1; [L884] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L851] int retValue_acc ; [L852] int tmp ; [L856] FCALL select_helpers() [L857] FCALL select_features() [L858] CALL, EXPR valid_product() [L1012] int retValue_acc ; [L1015] retValue_acc = 1 [L1016] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L858] RET, EXPR valid_product() [L858] tmp = valid_product() [L860] COND TRUE \read(tmp) [L862] FCALL setup() [L863] CALL runTest() [L842] CALL test() [L679] int splverifierCounter ; [L680] int tmp ; [L681] int tmp___0 ; [L682] int tmp___1 ; [L683] int tmp___2 ; [L686] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L690] COND TRUE splverifierCounter < 4 [L696] tmp = __VERIFIER_nondet_int() [L698] COND FALSE !(\read(tmp)) [L706] tmp___0 = __VERIFIER_nondet_int() [L708] COND FALSE !(\read(tmp___0)) [L716] tmp___2 = __VERIFIER_nondet_int() [L718] COND TRUE \read(tmp___2) [L720] CALL startSystem() [L304] systemActive = 1 [L720] RET startSystem() [L735] CALL timeShift() [L70] COND FALSE !(\read(pumpRunning)) [L77] COND TRUE \read(systemActive) [L79] CALL processEnvironment() [L151] int tmp ; [L154] COND FALSE !(\read(pumpRunning)) [L169] CALL processEnvironment__wrappee__lowWaterSensor() [L125] int tmp ; [L128] COND FALSE !(\read(pumpRunning)) [L143] CALL processEnvironment__wrappee__highWaterSensor() [L99] int tmp ; [L102] COND TRUE ! pumpRunning [L104] CALL, EXPR isHighWaterLevel() [L248] int retValue_acc ; [L249] int tmp ; [L250] int tmp___0 ; [L254] CALL, EXPR isHighWaterSensorDry() [L963] int retValue_acc ; [L966] COND TRUE waterLevel < 2 [L967] retValue_acc = 1 [L968] return (retValue_acc); [L254] RET, EXPR isHighWaterSensorDry() [L254] tmp = isHighWaterSensorDry() [L256] COND TRUE \read(tmp) [L257] tmp___0 = 0 [L261] retValue_acc = tmp___0 [L262] return (retValue_acc); [L104] RET, EXPR isHighWaterLevel() [L104] tmp = isHighWaterLevel() [L106] COND FALSE !(\read(tmp)) [L112] FCALL processEnvironment__wrappee__base() [L143] RET processEnvironment__wrappee__highWaterSensor() [L169] RET processEnvironment__wrappee__lowWaterSensor() [L79] RET processEnvironment() [L85] CALL __utac_acc__Specification4_spec__1() [L750] int tmp ; [L751] int tmp___0 ; [L755] CALL, EXPR getWaterLevel() [L954] int retValue_acc ; [L957] retValue_acc = waterLevel [L958] return (retValue_acc); [L755] RET, EXPR getWaterLevel() [L755] tmp = getWaterLevel() [L757] COND FALSE !(tmp == 0) [L85] RET __utac_acc__Specification4_spec__1() [L735] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 690]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L62] int pumpRunning = 0; [L63] int systemActive = 1; [L478] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L775] int cleanupTimeShifts = 4; [L883] int waterLevel = 1; [L884] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L851] int retValue_acc ; [L852] int tmp ; [L856] FCALL select_helpers() [L857] FCALL select_features() [L858] CALL, EXPR valid_product() [L1012] int retValue_acc ; [L1015] retValue_acc = 1 [L1016] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L858] RET, EXPR valid_product() [L858] tmp = valid_product() [L860] COND TRUE \read(tmp) [L862] FCALL setup() [L863] CALL runTest() [L842] CALL test() [L679] int splverifierCounter ; [L680] int tmp ; [L681] int tmp___0 ; [L682] int tmp___1 ; [L683] int tmp___2 ; [L686] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L690] COND TRUE splverifierCounter < 4 [L696] tmp = __VERIFIER_nondet_int() [L698] COND FALSE !(\read(tmp)) [L706] tmp___0 = __VERIFIER_nondet_int() [L708] COND FALSE !(\read(tmp___0)) [L716] tmp___2 = __VERIFIER_nondet_int() [L718] COND TRUE \read(tmp___2) [L720] CALL startSystem() [L304] systemActive = 1 [L720] RET startSystem() [L735] CALL timeShift() [L70] COND FALSE !(\read(pumpRunning)) [L77] COND TRUE \read(systemActive) [L79] CALL processEnvironment() [L151] int tmp ; [L154] COND FALSE !(\read(pumpRunning)) [L169] CALL processEnvironment__wrappee__lowWaterSensor() [L125] int tmp ; [L128] COND FALSE !(\read(pumpRunning)) [L143] CALL processEnvironment__wrappee__highWaterSensor() [L99] int tmp ; [L102] COND TRUE ! pumpRunning [L104] CALL, EXPR isHighWaterLevel() [L248] int retValue_acc ; [L249] int tmp ; [L250] int tmp___0 ; [L254] CALL, EXPR isHighWaterSensorDry() [L963] int retValue_acc ; [L966] COND TRUE waterLevel < 2 [L967] retValue_acc = 1 [L968] return (retValue_acc); [L254] RET, EXPR isHighWaterSensorDry() [L254] tmp = isHighWaterSensorDry() [L256] COND TRUE \read(tmp) [L257] tmp___0 = 0 [L261] retValue_acc = tmp___0 [L262] return (retValue_acc); [L104] RET, EXPR isHighWaterLevel() [L104] tmp = isHighWaterLevel() [L106] COND FALSE !(\read(tmp)) [L112] FCALL processEnvironment__wrappee__base() [L143] RET processEnvironment__wrappee__highWaterSensor() [L169] RET processEnvironment__wrappee__lowWaterSensor() [L79] RET processEnvironment() [L85] CALL __utac_acc__Specification4_spec__1() [L750] int tmp ; [L751] int tmp___0 ; [L755] CALL, EXPR getWaterLevel() [L954] int retValue_acc ; [L957] retValue_acc = waterLevel [L958] return (retValue_acc); [L755] RET, EXPR getWaterLevel() [L755] tmp = getWaterLevel() [L757] COND FALSE !(tmp == 0) [L85] RET __utac_acc__Specification4_spec__1() [L735] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-12-02 11:59:26,390 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8724bd91-7f30-4664-b0cd-4fc108ca62c6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-12-02 11:59:26,586 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8724bd91-7f30-4664-b0cd-4fc108ca62c6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 11:59:26,786 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8724bd91-7f30-4664-b0cd-4fc108ca62c6/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)