./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product61.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_1d199092-e413-4a37-9a3f-452682a34d76/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d199092-e413-4a37-9a3f-452682a34d76/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d199092-e413-4a37-9a3f-452682a34d76/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d199092-e413-4a37-9a3f-452682a34d76/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product61.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d199092-e413-4a37-9a3f-452682a34d76/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d199092-e413-4a37-9a3f-452682a34d76/bin/uautomizer-verify-aQ6SnzHsRB --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 53b1b58c0a8af862b137647fd316df606e2053e614741221b62b3a107765e608 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 23:21:04,881 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 23:21:05,016 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d199092-e413-4a37-9a3f-452682a34d76/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-27 23:21:05,024 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 23:21:05,024 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 23:21:05,059 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 23:21:05,060 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 23:21:05,060 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 23:21:05,060 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 23:21:05,061 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 23:21:05,061 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 23:21:05,061 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 23:21:05,062 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 23:21:05,062 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-27 23:21:05,062 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-27 23:21:05,062 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-27 23:21:05,062 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-27 23:21:05,063 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-27 23:21:05,063 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-27 23:21:05,063 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 23:21:05,063 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-27 23:21:05,064 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 23:21:05,064 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 23:21:05,064 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 23:21:05,064 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 23:21:05,064 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-27 23:21:05,065 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-27 23:21:05,065 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-27 23:21:05,065 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 23:21:05,065 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 23:21:05,065 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 23:21:05,066 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-27 23:21:05,066 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 23:21:05,066 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 23:21:05,066 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 23:21:05,066 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:21:05,067 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 23:21:05,067 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-11-27 23:21:05,067 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-27 23:21:05,067 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_1d199092-e413-4a37-9a3f-452682a34d76/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 53b1b58c0a8af862b137647fd316df606e2053e614741221b62b3a107765e608 [2024-11-27 23:21:05,493 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 23:21:05,506 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 23:21:05,509 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 23:21:05,511 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 23:21:05,511 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 23:21:05,513 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d199092-e413-4a37-9a3f-452682a34d76/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/product-lines/minepump_spec3_product61.cil.c [2024-11-27 23:21:09,119 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d199092-e413-4a37-9a3f-452682a34d76/bin/uautomizer-verify-aQ6SnzHsRB/data/90ddb5846/e5fe616164f843599e6513b2e5c15199/FLAGd05351c74 [2024-11-27 23:21:09,645 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 23:21:09,645 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d199092-e413-4a37-9a3f-452682a34d76/sv-benchmarks/c/product-lines/minepump_spec3_product61.cil.c [2024-11-27 23:21:09,678 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d199092-e413-4a37-9a3f-452682a34d76/bin/uautomizer-verify-aQ6SnzHsRB/data/90ddb5846/e5fe616164f843599e6513b2e5c15199/FLAGd05351c74 [2024-11-27 23:21:09,712 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d199092-e413-4a37-9a3f-452682a34d76/bin/uautomizer-verify-aQ6SnzHsRB/data/90ddb5846/e5fe616164f843599e6513b2e5c15199 [2024-11-27 23:21:09,720 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 23:21:09,722 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 23:21:09,724 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 23:21:09,725 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 23:21:09,731 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 23:21:09,732 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:21:09" (1/1) ... [2024-11-27 23:21:09,736 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65337601 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:21:09, skipping insertion in model container [2024-11-27 23:21:09,737 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:21:09" (1/1) ... [2024-11-27 23:21:09,798 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 23:21:10,195 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:21:10,216 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 23:21:10,228 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [49] [2024-11-27 23:21:10,230 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [118] [2024-11-27 23:21:10,231 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [368] [2024-11-27 23:21:10,231 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [472] [2024-11-27 23:21:10,231 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [481] [2024-11-27 23:21:10,231 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [580] [2024-11-27 23:21:10,231 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [614] [2024-11-27 23:21:10,231 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [649] [2024-11-27 23:21:10,346 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:21:10,371 INFO L204 MainTranslator]: Completed translation [2024-11-27 23:21:10,372 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:21:10 WrapperNode [2024-11-27 23:21:10,373 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 23:21:10,374 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 23:21:10,374 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 23:21:10,374 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 23:21:10,388 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:21:10" (1/1) ... [2024-11-27 23:21:10,416 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:21:10" (1/1) ... [2024-11-27 23:21:10,507 INFO L138 Inliner]: procedures = 57, calls = 106, calls flagged for inlining = 59, calls inlined = 179, statements flattened = 1234 [2024-11-27 23:21:10,507 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 23:21:10,508 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 23:21:10,508 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 23:21:10,508 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 23:21:10,520 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:21:10" (1/1) ... [2024-11-27 23:21:10,521 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:21:10" (1/1) ... [2024-11-27 23:21:10,526 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:21:10" (1/1) ... [2024-11-27 23:21:10,550 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]. [2024-11-27 23:21:10,550 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:21:10" (1/1) ... [2024-11-27 23:21:10,551 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:21:10" (1/1) ... [2024-11-27 23:21:10,571 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:21:10" (1/1) ... [2024-11-27 23:21:10,575 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:21:10" (1/1) ... [2024-11-27 23:21:10,586 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:21:10" (1/1) ... [2024-11-27 23:21:10,589 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:21:10" (1/1) ... [2024-11-27 23:21:10,592 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:21:10" (1/1) ... [2024-11-27 23:21:10,599 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 23:21:10,600 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 23:21:10,600 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 23:21:10,600 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 23:21:10,601 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:21:10" (1/1) ... [2024-11-27 23:21:10,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 23:21:10,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d199092-e413-4a37-9a3f-452682a34d76/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:21:10,664 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d199092-e413-4a37-9a3f-452682a34d76/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 23:21:10,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d199092-e413-4a37-9a3f-452682a34d76/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-27 23:21:10,708 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 23:21:10,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 23:21:10,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 23:21:10,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 23:21:10,804 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 23:21:10,807 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 23:21:11,993 INFO L? ?]: Removed 319 outVars from TransFormulas that were not future-live. [2024-11-27 23:21:11,994 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 23:21:12,068 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 23:21:12,068 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-27 23:21:12,069 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:21:12 BoogieIcfgContainer [2024-11-27 23:21:12,069 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 23:21:12,070 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-27 23:21:12,070 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-27 23:21:12,077 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-27 23:21:12,078 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-27 23:21:12,078 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.11 11:21:09" (1/3) ... [2024-11-27 23:21:12,079 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4a497842 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.11 11:21:12, skipping insertion in model container [2024-11-27 23:21:12,080 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-27 23:21:12,080 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:21:10" (2/3) ... [2024-11-27 23:21:12,081 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4a497842 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.11 11:21:12, skipping insertion in model container [2024-11-27 23:21:12,081 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-27 23:21:12,081 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:21:12" (3/3) ... [2024-11-27 23:21:12,082 INFO L363 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product61.cil.c [2024-11-27 23:21:12,142 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-27 23:21:12,142 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-27 23:21:12,142 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-27 23:21:12,143 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-27 23:21:12,143 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-27 23:21:12,143 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-27 23:21:12,143 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-27 23:21:12,143 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-27 23:21:12,150 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 325 states, 324 states have (on average 1.3549382716049383) internal successors, (439), 324 states have internal predecessors, (439), 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) [2024-11-27 23:21:12,181 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 212 [2024-11-27 23:21:12,181 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 23:21:12,181 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 23:21:12,190 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:21:12,190 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:21:12,190 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-27 23:21:12,192 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 325 states, 324 states have (on average 1.3549382716049383) internal successors, (439), 324 states have internal predecessors, (439), 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) [2024-11-27 23:21:12,206 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 212 [2024-11-27 23:21:12,206 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 23:21:12,206 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 23:21:12,208 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:21:12,208 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:21:12,215 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;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret28#1, main_~retValue_acc~8#1, main_~tmp~7#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~7#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~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1;" "main_#t~ret28#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret28#1;havoc main_#t~ret28#1;" "assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-11-27 23:21:12,215 INFO L749 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet4#1;test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1;" "assume !(0 != test_~tmp~0#1);" "havoc test_#t~nondet5#1;test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1;" "assume !(0 != test_~tmp___0~0#1);" "havoc test_#t~nondet6#1;test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1;" "assume 0 != test_~tmp___2~0#1;" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume !(0 != ~systemActive~0);" "assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret29#1, __utac_acc__Specification3_spec__1_#t~ret30#1, __utac_acc__Specification3_spec__1_#t~ret31#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;isMethaneLevelCritical_~retValue_acc~4#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1;" "__utac_acc__Specification3_spec__1_#t~ret29#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret29#1;havoc __utac_acc__Specification3_spec__1_#t~ret29#1;" "assume 0 != __utac_acc__Specification3_spec__1_~tmp~8#1;" "havoc __utac_acc__Specification3_spec__1_#t~ret29#1, __utac_acc__Specification3_spec__1_#t~ret30#1, __utac_acc__Specification3_spec__1_#t~ret31#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2024-11-27 23:21:12,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:21:12,223 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2024-11-27 23:21:12,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 23:21:12,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828897752] [2024-11-27 23:21:12,235 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:21:12,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:21:12,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:21:12,381 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 23:21:12,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:21:12,444 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 23:21:12,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:21:12,450 INFO L85 PathProgramCache]: Analyzing trace with hash -1082050424, now seen corresponding path program 1 times [2024-11-27 23:21:12,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 23:21:12,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897902824] [2024-11-27 23:21:12,453 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:21:12,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:21:12,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:21:12,475 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 23:21:12,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:21:12,495 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 23:21:12,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:21:12,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1038327228, now seen corresponding path program 1 times [2024-11-27 23:21:12,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 23:21:12,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67781666] [2024-11-27 23:21:12,502 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:21:12,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:21:12,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:21:12,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-27 23:21:12,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67781666] [2024-11-27 23:21:12,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67781666] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:21:12,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2087760562] [2024-11-27 23:21:12,903 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:21:12,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:21:12,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d199092-e413-4a37-9a3f-452682a34d76/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:21:12,917 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d199092-e413-4a37-9a3f-452682a34d76/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:21:12,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d199092-e413-4a37-9a3f-452682a34d76/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 23:21:13,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:21:13,032 INFO L256 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-27 23:21:13,034 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:21:13,137 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:21:13,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2087760562] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:21:13,214 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:21:13,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 2, 2] total 6 [2024-11-27 23:21:13,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668103480] [2024-11-27 23:21:13,215 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:21:13,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-27 23:21:13,347 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 23:21:13,348 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:21:13,351 INFO L87 Difference]: Start difference. First operand has 325 states, 324 states have (on average 1.3549382716049383) internal successors, (439), 324 states have internal predecessors, (439), 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 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 6 states have internal predecessors, (39), 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) [2024-11-27 23:21:13,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:21:13,528 INFO L93 Difference]: Finished difference Result 319 states and 422 transitions. [2024-11-27 23:21:13,530 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 319 states and 422 transitions. [2024-11-27 23:21:13,540 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 206 [2024-11-27 23:21:13,550 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 319 states to 309 states and 412 transitions. [2024-11-27 23:21:13,551 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 309 [2024-11-27 23:21:13,552 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 309 [2024-11-27 23:21:13,553 INFO L73 IsDeterministic]: Start isDeterministic. Operand 309 states and 412 transitions. [2024-11-27 23:21:13,555 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-27 23:21:13,556 INFO L218 hiAutomatonCegarLoop]: Abstraction has 309 states and 412 transitions. [2024-11-27 23:21:13,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states and 412 transitions. [2024-11-27 23:21:13,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 309. [2024-11-27 23:21:13,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 309 states have (on average 1.3333333333333333) internal successors, (412), 308 states have internal predecessors, (412), 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) [2024-11-27 23:21:13,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 412 transitions. [2024-11-27 23:21:13,599 INFO L240 hiAutomatonCegarLoop]: Abstraction has 309 states and 412 transitions. [2024-11-27 23:21:13,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:21:13,605 INFO L425 stractBuchiCegarLoop]: Abstraction has 309 states and 412 transitions. [2024-11-27 23:21:13,605 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-27 23:21:13,605 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 309 states and 412 transitions. [2024-11-27 23:21:13,609 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 206 [2024-11-27 23:21:13,609 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 23:21:13,609 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 23:21:13,610 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:21:13,610 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] [2024-11-27 23:21:13,610 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;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret28#1, main_~retValue_acc~8#1, main_~tmp~7#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~7#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~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1;" "main_#t~ret28#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret28#1;havoc main_#t~ret28#1;" "assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-11-27 23:21:13,611 INFO L749 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet4#1;test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1;" "assume !(0 != test_~tmp~0#1);" "havoc test_#t~nondet5#1;test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1;" "assume !(0 != test_~tmp___0~0#1);" "havoc test_#t~nondet6#1;test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1;" "assume 0 != test_~tmp___2~0#1;" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret10#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1;" "assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret12#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~4#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;isMethaneLevelCritical_~retValue_acc~4#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1;" "isMethaneAlarm_#t~ret12#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~0#1 := isMethaneAlarm_#t~ret12#1;havoc isMethaneAlarm_#t~ret12#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~0#1;" "processEnvironment_#t~ret10#1 := isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret12#1, isMethaneAlarm_~retValue_acc~0#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~3#1 := processEnvironment_#t~ret10#1;havoc processEnvironment_#t~ret10#1;" "assume 0 != processEnvironment_~tmp~3#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0;" "assume { :end_inline_deactivatePump } true;" "havoc processEnvironment_#t~ret10#1, processEnvironment_~tmp~3#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret29#1, __utac_acc__Specification3_spec__1_#t~ret30#1, __utac_acc__Specification3_spec__1_#t~ret31#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;isMethaneLevelCritical_~retValue_acc~4#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1;" "__utac_acc__Specification3_spec__1_#t~ret29#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret29#1;havoc __utac_acc__Specification3_spec__1_#t~ret29#1;" "assume 0 != __utac_acc__Specification3_spec__1_~tmp~8#1;" "havoc __utac_acc__Specification3_spec__1_#t~ret29#1, __utac_acc__Specification3_spec__1_#t~ret30#1, __utac_acc__Specification3_spec__1_#t~ret31#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2024-11-27 23:21:13,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:21:13,611 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2024-11-27 23:21:13,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 23:21:13,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856672527] [2024-11-27 23:21:13,612 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:21:13,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:21:13,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:21:13,623 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 23:21:13,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:21:13,641 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 23:21:13,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:21:13,646 INFO L85 PathProgramCache]: Analyzing trace with hash -1320369711, now seen corresponding path program 1 times [2024-11-27 23:21:13,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 23:21:13,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118085678] [2024-11-27 23:21:13,647 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:21:13,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:21:13,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:21:13,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-27 23:21:13,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118085678] [2024-11-27 23:21:13,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118085678] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:21:13,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2109442782] [2024-11-27 23:21:13,702 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:21:13,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:21:13,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d199092-e413-4a37-9a3f-452682a34d76/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:21:13,708 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d199092-e413-4a37-9a3f-452682a34d76/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:21:13,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d199092-e413-4a37-9a3f-452682a34d76/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 23:21:13,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:21:13,785 INFO L256 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 23:21:13,786 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:21:13,795 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:21:13,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2109442782] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:21:13,806 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:21:13,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-11-27 23:21:13,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900469912] [2024-11-27 23:21:13,807 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:21:13,807 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-27 23:21:13,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-27 23:21:13,808 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:21:13,808 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:21:13,808 INFO L87 Difference]: Start difference. First operand 309 states and 412 transitions. cyclomatic complexity: 105 Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2024-11-27 23:21:14,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:21:14,029 INFO L93 Difference]: Finished difference Result 320 states and 406 transitions. [2024-11-27 23:21:14,029 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 320 states and 406 transitions. [2024-11-27 23:21:14,035 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 218 [2024-11-27 23:21:14,043 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 320 states to 320 states and 406 transitions. [2024-11-27 23:21:14,043 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 320 [2024-11-27 23:21:14,044 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 320 [2024-11-27 23:21:14,044 INFO L73 IsDeterministic]: Start isDeterministic. Operand 320 states and 406 transitions. [2024-11-27 23:21:14,050 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-27 23:21:14,050 INFO L218 hiAutomatonCegarLoop]: Abstraction has 320 states and 406 transitions. [2024-11-27 23:21:14,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states and 406 transitions. [2024-11-27 23:21:14,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 320. [2024-11-27 23:21:14,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 320 states have (on average 1.26875) internal successors, (406), 319 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:21:14,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 406 transitions. [2024-11-27 23:21:14,080 INFO L240 hiAutomatonCegarLoop]: Abstraction has 320 states and 406 transitions. [2024-11-27 23:21:14,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:21:14,081 INFO L425 stractBuchiCegarLoop]: Abstraction has 320 states and 406 transitions. [2024-11-27 23:21:14,082 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-27 23:21:14,082 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 320 states and 406 transitions. [2024-11-27 23:21:14,088 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 218 [2024-11-27 23:21:14,088 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 23:21:14,088 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 23:21:14,089 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:21:14,089 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] [2024-11-27 23:21:14,089 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;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret28#1, main_~retValue_acc~8#1, main_~tmp~7#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~7#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~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1;" "main_#t~ret28#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret28#1;havoc main_#t~ret28#1;" "assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-11-27 23:21:14,089 INFO L749 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet4#1;test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1;" "assume !(0 != test_~tmp~0#1);" "havoc test_#t~nondet5#1;test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1;" "assume !(0 != test_~tmp___0~0#1);" "havoc test_#t~nondet6#1;test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1;" "assume 0 != test_~tmp___2~0#1;" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret10#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret9#1, processEnvironment__wrappee__methaneQuery_~tmp~2#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~2#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1;" "assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret21#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~5#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~5#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;" "assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1;" "isHighWaterLevel_#t~ret21#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~5#1 := isHighWaterLevel_#t~ret21#1;havoc isHighWaterLevel_#t~ret21#1;" "assume 0 != isHighWaterLevel_~tmp~5#1;isHighWaterLevel_~tmp___0~1#1 := 0;" "isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1;" "processEnvironment__wrappee__highWaterSensor_#t~ret8#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret21#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~5#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret8#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1;" "assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true;" "havoc processEnvironment__wrappee__methaneQuery_#t~ret9#1, processEnvironment__wrappee__methaneQuery_~tmp~2#1;assume { :end_inline_processEnvironment__wrappee__methaneQuery } true;" "havoc processEnvironment_#t~ret10#1, processEnvironment_~tmp~3#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret29#1, __utac_acc__Specification3_spec__1_#t~ret30#1, __utac_acc__Specification3_spec__1_#t~ret31#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;isMethaneLevelCritical_~retValue_acc~4#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1;" "__utac_acc__Specification3_spec__1_#t~ret29#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret29#1;havoc __utac_acc__Specification3_spec__1_#t~ret29#1;" "assume 0 != __utac_acc__Specification3_spec__1_~tmp~8#1;" "havoc __utac_acc__Specification3_spec__1_#t~ret29#1, __utac_acc__Specification3_spec__1_#t~ret30#1, __utac_acc__Specification3_spec__1_#t~ret31#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2024-11-27 23:21:14,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:21:14,092 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2024-11-27 23:21:14,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 23:21:14,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341869961] [2024-11-27 23:21:14,093 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:21:14,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:21:14,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:21:14,111 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 23:21:14,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:21:14,132 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 23:21:14,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:21:14,134 INFO L85 PathProgramCache]: Analyzing trace with hash -632326636, now seen corresponding path program 1 times [2024-11-27 23:21:14,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 23:21:14,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860882657] [2024-11-27 23:21:14,135 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:21:14,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:21:14,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:21:14,154 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 23:21:14,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:21:14,180 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 23:21:14,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:21:14,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1883308584, now seen corresponding path program 1 times [2024-11-27 23:21:14,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 23:21:14,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736855874] [2024-11-27 23:21:14,185 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:21:14,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:21:14,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:21:14,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-27 23:21:14,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736855874] [2024-11-27 23:21:14,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736855874] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:21:14,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [936099104] [2024-11-27 23:21:14,387 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:21:14,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:21:14,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d199092-e413-4a37-9a3f-452682a34d76/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:21:14,392 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d199092-e413-4a37-9a3f-452682a34d76/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:21:14,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d199092-e413-4a37-9a3f-452682a34d76/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 23:21:14,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:21:14,489 INFO L256 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-27 23:21:14,492 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:21:14,589 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:21:14,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [936099104] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:21:14,684 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:21:14,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 4 [2024-11-27 23:21:14,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797449349] [2024-11-27 23:21:14,685 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:21:14,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-27 23:21:14,881 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:21:14,881 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:21:14,881 INFO L87 Difference]: Start difference. First operand 320 states and 406 transitions. cyclomatic complexity: 88 Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 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) [2024-11-27 23:21:15,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:21:15,106 INFO L93 Difference]: Finished difference Result 633 states and 797 transitions. [2024-11-27 23:21:15,106 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 633 states and 797 transitions. [2024-11-27 23:21:15,119 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 436 [2024-11-27 23:21:15,127 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 633 states to 633 states and 797 transitions. [2024-11-27 23:21:15,127 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 633 [2024-11-27 23:21:15,128 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 633 [2024-11-27 23:21:15,129 INFO L73 IsDeterministic]: Start isDeterministic. Operand 633 states and 797 transitions. [2024-11-27 23:21:15,131 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-27 23:21:15,132 INFO L218 hiAutomatonCegarLoop]: Abstraction has 633 states and 797 transitions. [2024-11-27 23:21:15,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states and 797 transitions. [2024-11-27 23:21:15,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 633. [2024-11-27 23:21:15,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 633 states, 633 states have (on average 1.2590837282780412) internal successors, (797), 632 states have internal predecessors, (797), 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) [2024-11-27 23:21:15,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 633 states to 633 states and 797 transitions. [2024-11-27 23:21:15,183 INFO L240 hiAutomatonCegarLoop]: Abstraction has 633 states and 797 transitions. [2024-11-27 23:21:15,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:21:15,189 INFO L425 stractBuchiCegarLoop]: Abstraction has 633 states and 797 transitions. [2024-11-27 23:21:15,189 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-27 23:21:15,189 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 633 states and 797 transitions. [2024-11-27 23:21:15,196 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 436 [2024-11-27 23:21:15,196 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 23:21:15,196 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 23:21:15,197 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:21:15,197 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:21:15,198 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;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret28#1, main_~retValue_acc~8#1, main_~tmp~7#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~7#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~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1;" "main_#t~ret28#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret28#1;havoc main_#t~ret28#1;" "assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-11-27 23:21:15,198 INFO L749 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet4#1;test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1;" "assume !(0 != test_~tmp~0#1);" "havoc test_#t~nondet5#1;test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1;" "assume !(0 != test_~tmp___0~0#1);" "havoc test_#t~nondet6#1;test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1;" "assume 0 != test_~tmp___2~0#1;" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret10#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret9#1, processEnvironment__wrappee__methaneQuery_~tmp~2#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~2#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1;" "assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret21#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~5#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~5#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;" "assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1;" "isHighWaterLevel_#t~ret21#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~5#1 := isHighWaterLevel_#t~ret21#1;havoc isHighWaterLevel_#t~ret21#1;" "assume 0 != isHighWaterLevel_~tmp~5#1;isHighWaterLevel_~tmp___0~1#1 := 0;" "isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1;" "processEnvironment__wrappee__highWaterSensor_#t~ret8#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret21#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~5#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret8#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1;" "assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true;" "havoc processEnvironment__wrappee__methaneQuery_#t~ret9#1, processEnvironment__wrappee__methaneQuery_~tmp~2#1;assume { :end_inline_processEnvironment__wrappee__methaneQuery } true;" "havoc processEnvironment_#t~ret10#1, processEnvironment_~tmp~3#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret29#1, __utac_acc__Specification3_spec__1_#t~ret30#1, __utac_acc__Specification3_spec__1_#t~ret31#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;isMethaneLevelCritical_~retValue_acc~4#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1;" "__utac_acc__Specification3_spec__1_#t~ret29#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret29#1;havoc __utac_acc__Specification3_spec__1_#t~ret29#1;" "assume !(0 != __utac_acc__Specification3_spec__1_~tmp~8#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1;" "__utac_acc__Specification3_spec__1_#t~ret30#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~3#1 := __utac_acc__Specification3_spec__1_#t~ret30#1;havoc __utac_acc__Specification3_spec__1_#t~ret30#1;" "assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~3#1);" "havoc __utac_acc__Specification3_spec__1_#t~ret29#1, __utac_acc__Specification3_spec__1_#t~ret30#1, __utac_acc__Specification3_spec__1_#t~ret31#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2024-11-27 23:21:15,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:21:15,198 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2024-11-27 23:21:15,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 23:21:15,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907880180] [2024-11-27 23:21:15,199 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:21:15,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:21:15,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:21:15,209 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 23:21:15,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:21:15,222 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 23:21:15,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:21:15,226 INFO L85 PathProgramCache]: Analyzing trace with hash -2074309207, now seen corresponding path program 1 times [2024-11-27 23:21:15,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 23:21:15,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678380297] [2024-11-27 23:21:15,227 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:21:15,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:21:15,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:21:15,244 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 23:21:15,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:21:15,261 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 23:21:15,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:21:15,265 INFO L85 PathProgramCache]: Analyzing trace with hash -1677118355, now seen corresponding path program 1 times [2024-11-27 23:21:15,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 23:21:15,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007336923] [2024-11-27 23:21:15,266 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:21:15,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:21:15,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:21:15,291 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 23:21:15,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:21:15,321 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 23:21:16,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:21:16,757 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 23:21:16,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:21:16,847 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.11 11:21:16 BoogieIcfgContainer [2024-11-27 23:21:16,847 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-27 23:21:16,848 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-27 23:21:16,848 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-27 23:21:16,848 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-27 23:21:16,849 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:21:12" (3/4) ... [2024-11-27 23:21:16,853 INFO L143 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-27 23:21:16,923 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d199092-e413-4a37-9a3f-452682a34d76/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-27 23:21:16,923 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-27 23:21:16,926 INFO L158 Benchmark]: Toolchain (without parser) took 7204.09ms. Allocated memory was 142.6MB in the beginning and 318.8MB in the end (delta: 176.2MB). Free memory was 110.8MB in the beginning and 253.7MB in the end (delta: -142.9MB). Peak memory consumption was 30.7MB. Max. memory is 16.1GB. [2024-11-27 23:21:16,926 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 167.8MB. Free memory is still 104.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:21:16,927 INFO L158 Benchmark]: CACSL2BoogieTranslator took 649.55ms. Allocated memory is still 142.6MB. Free memory was 110.5MB in the beginning and 91.9MB in the end (delta: 18.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 23:21:16,928 INFO L158 Benchmark]: Boogie Procedure Inliner took 133.42ms. Allocated memory is still 142.6MB. Free memory was 91.9MB in the beginning and 87.3MB in the end (delta: 4.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 23:21:16,928 INFO L158 Benchmark]: Boogie Preprocessor took 90.95ms. Allocated memory is still 142.6MB. Free memory was 87.3MB in the beginning and 82.2MB in the end (delta: 5.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:21:16,929 INFO L158 Benchmark]: RCFGBuilder took 1469.58ms. Allocated memory is still 142.6MB. Free memory was 82.2MB in the beginning and 105.4MB in the end (delta: -23.2MB). Peak memory consumption was 57.2MB. Max. memory is 16.1GB. [2024-11-27 23:21:16,930 INFO L158 Benchmark]: BuchiAutomizer took 4776.90ms. Allocated memory was 142.6MB in the beginning and 318.8MB in the end (delta: 176.2MB). Free memory was 105.4MB in the beginning and 256.3MB in the end (delta: -150.9MB). Peak memory consumption was 23.8MB. Max. memory is 16.1GB. [2024-11-27 23:21:16,931 INFO L158 Benchmark]: Witness Printer took 76.70ms. Allocated memory is still 318.8MB. Free memory was 256.3MB in the beginning and 253.7MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:21:16,934 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 167.8MB. Free memory is still 104.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 649.55ms. Allocated memory is still 142.6MB. Free memory was 110.5MB in the beginning and 91.9MB in the end (delta: 18.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 133.42ms. Allocated memory is still 142.6MB. Free memory was 91.9MB in the beginning and 87.3MB in the end (delta: 4.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 90.95ms. Allocated memory is still 142.6MB. Free memory was 87.3MB in the beginning and 82.2MB in the end (delta: 5.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1469.58ms. Allocated memory is still 142.6MB. Free memory was 82.2MB in the beginning and 105.4MB in the end (delta: -23.2MB). Peak memory consumption was 57.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 4776.90ms. Allocated memory was 142.6MB in the beginning and 318.8MB in the end (delta: 176.2MB). Free memory was 105.4MB in the beginning and 256.3MB in the end (delta: -150.9MB). Peak memory consumption was 23.8MB. Max. memory is 16.1GB. * Witness Printer took 76.70ms. Allocated memory is still 318.8MB. Free memory was 256.3MB in the beginning and 253.7MB in the end (delta: 2.6MB). There was no memory consumed. 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,"scenario.i","") [49] - GenericResultAtLocation [Line: 118]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [118] - GenericResultAtLocation [Line: 368]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [368] - GenericResultAtLocation [Line: 472]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [472] - GenericResultAtLocation [Line: 481]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [481] - GenericResultAtLocation [Line: 580]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [580] - GenericResultAtLocation [Line: 614]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [614] - GenericResultAtLocation [Line: 649]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [649] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 7 locations. The remainder module has 633 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.6s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 3.6s. Construction of modules took 0.3s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1336 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1336 mSDsluCounter, 2799 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1804 mSDsCounter, 56 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 184 IncrementalHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 56 mSolverCounterUnsat, 995 mSDtfsCounter, 184 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 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: 66]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L128] int pumpRunning = 0; [L129] int systemActive = 1; [L370] int waterLevel = 1; [L371] int methaneLevelCritical = 0; [L482] int cleanupTimeShifts = 4; [L819] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L558] int retValue_acc ; [L559] int tmp ; [L563] FCALL select_helpers() [L564] FCALL select_features() [L565] CALL, EXPR valid_product() [L641] int retValue_acc ; [L644] retValue_acc = 1 [L645] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L565] RET, EXPR valid_product() [L565] tmp = valid_product() [L567] COND TRUE \read(tmp) [L569] FCALL setup() [L570] CALL runTest() [L549] CALL test() [L55] int splverifierCounter ; [L56] int tmp ; [L57] int tmp___0 ; [L58] int tmp___1 ; [L59] int tmp___2 ; [L62] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L66] COND TRUE splverifierCounter < 4 [L72] tmp = __VERIFIER_nondet_int() [L74] COND FALSE !(\read(tmp)) [L82] tmp___0 = __VERIFIER_nondet_int() [L84] COND FALSE !(\read(tmp___0)) [L92] tmp___2 = __VERIFIER_nondet_int() [L94] COND TRUE \read(tmp___2) [L107] CALL timeShift() [L136] COND FALSE !(\read(pumpRunning)) [L143] COND TRUE \read(systemActive) [L145] CALL processEnvironment() [L217] int tmp ; [L220] COND FALSE !(\read(pumpRunning)) [L235] CALL processEnvironment__wrappee__methaneQuery() [L191] int tmp ; [L194] COND FALSE !(\read(pumpRunning)) [L209] CALL processEnvironment__wrappee__highWaterSensor() [L165] int tmp ; [L168] COND TRUE ! pumpRunning [L170] CALL, EXPR isHighWaterLevel() [L331] int retValue_acc ; [L332] int tmp ; [L333] int tmp___0 ; [L337] CALL, EXPR isHighWaterSensorDry() [L450] int retValue_acc ; [L453] COND TRUE waterLevel < 2 [L454] retValue_acc = 1 [L455] return (retValue_acc); [L337] RET, EXPR isHighWaterSensorDry() [L337] tmp = isHighWaterSensorDry() [L339] COND TRUE \read(tmp) [L340] tmp___0 = 0 [L344] retValue_acc = tmp___0 [L345] return (retValue_acc); [L170] RET, EXPR isHighWaterLevel() [L170] tmp = isHighWaterLevel() [L172] COND FALSE !(\read(tmp)) [L178] FCALL processEnvironment__wrappee__base() [L209] RET processEnvironment__wrappee__highWaterSensor() [L235] RET processEnvironment__wrappee__methaneQuery() [L145] RET processEnvironment() [L151] CALL __utac_acc__Specification3_spec__1() [L582] int tmp ; [L583] int tmp___0 ; [L584] int tmp___1 ; [L588] CALL, EXPR isMethaneLevelCritical() [L409] int retValue_acc ; [L412] retValue_acc = methaneLevelCritical [L413] return (retValue_acc); [L588] RET, EXPR isMethaneLevelCritical() [L588] tmp = isMethaneLevelCritical() [L590] COND FALSE !(\read(tmp)) [L594] CALL, EXPR getWaterLevel() [L441] int retValue_acc ; [L444] retValue_acc = waterLevel [L445] return (retValue_acc); [L594] RET, EXPR getWaterLevel() [L594] tmp___0 = getWaterLevel() [L596] COND FALSE !(tmp___0 == 2) [L151] RET __utac_acc__Specification3_spec__1() [L107] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 66]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L128] int pumpRunning = 0; [L129] int systemActive = 1; [L370] int waterLevel = 1; [L371] int methaneLevelCritical = 0; [L482] int cleanupTimeShifts = 4; [L819] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L558] int retValue_acc ; [L559] int tmp ; [L563] FCALL select_helpers() [L564] FCALL select_features() [L565] CALL, EXPR valid_product() [L641] int retValue_acc ; [L644] retValue_acc = 1 [L645] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L565] RET, EXPR valid_product() [L565] tmp = valid_product() [L567] COND TRUE \read(tmp) [L569] FCALL setup() [L570] CALL runTest() [L549] CALL test() [L55] int splverifierCounter ; [L56] int tmp ; [L57] int tmp___0 ; [L58] int tmp___1 ; [L59] int tmp___2 ; [L62] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L66] COND TRUE splverifierCounter < 4 [L72] tmp = __VERIFIER_nondet_int() [L74] COND FALSE !(\read(tmp)) [L82] tmp___0 = __VERIFIER_nondet_int() [L84] COND FALSE !(\read(tmp___0)) [L92] tmp___2 = __VERIFIER_nondet_int() [L94] COND TRUE \read(tmp___2) [L107] CALL timeShift() [L136] COND FALSE !(\read(pumpRunning)) [L143] COND TRUE \read(systemActive) [L145] CALL processEnvironment() [L217] int tmp ; [L220] COND FALSE !(\read(pumpRunning)) [L235] CALL processEnvironment__wrappee__methaneQuery() [L191] int tmp ; [L194] COND FALSE !(\read(pumpRunning)) [L209] CALL processEnvironment__wrappee__highWaterSensor() [L165] int tmp ; [L168] COND TRUE ! pumpRunning [L170] CALL, EXPR isHighWaterLevel() [L331] int retValue_acc ; [L332] int tmp ; [L333] int tmp___0 ; [L337] CALL, EXPR isHighWaterSensorDry() [L450] int retValue_acc ; [L453] COND TRUE waterLevel < 2 [L454] retValue_acc = 1 [L455] return (retValue_acc); [L337] RET, EXPR isHighWaterSensorDry() [L337] tmp = isHighWaterSensorDry() [L339] COND TRUE \read(tmp) [L340] tmp___0 = 0 [L344] retValue_acc = tmp___0 [L345] return (retValue_acc); [L170] RET, EXPR isHighWaterLevel() [L170] tmp = isHighWaterLevel() [L172] COND FALSE !(\read(tmp)) [L178] FCALL processEnvironment__wrappee__base() [L209] RET processEnvironment__wrappee__highWaterSensor() [L235] RET processEnvironment__wrappee__methaneQuery() [L145] RET processEnvironment() [L151] CALL __utac_acc__Specification3_spec__1() [L582] int tmp ; [L583] int tmp___0 ; [L584] int tmp___1 ; [L588] CALL, EXPR isMethaneLevelCritical() [L409] int retValue_acc ; [L412] retValue_acc = methaneLevelCritical [L413] return (retValue_acc); [L588] RET, EXPR isMethaneLevelCritical() [L588] tmp = isMethaneLevelCritical() [L590] COND FALSE !(\read(tmp)) [L594] CALL, EXPR getWaterLevel() [L441] int retValue_acc ; [L444] retValue_acc = waterLevel [L445] return (retValue_acc); [L594] RET, EXPR getWaterLevel() [L594] tmp___0 = getWaterLevel() [L596] COND FALSE !(tmp___0 == 2) [L151] RET __utac_acc__Specification3_spec__1() [L107] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-27 23:21:16,963 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d199092-e413-4a37-9a3f-452682a34d76/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-27 23:21:17,158 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d199092-e413-4a37-9a3f-452682a34d76/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-27 23:21:17,359 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d199092-e413-4a37-9a3f-452682a34d76/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-27 23:21:17,563 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d199092-e413-4a37-9a3f-452682a34d76/bin/uautomizer-verify-aQ6SnzHsRB/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)