./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product54.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_53e684c7-4857-4466-af02-5a98fad9f38c/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53e684c7-4857-4466-af02-5a98fad9f38c/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53e684c7-4857-4466-af02-5a98fad9f38c/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53e684c7-4857-4466-af02-5a98fad9f38c/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product54.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53e684c7-4857-4466-af02-5a98fad9f38c/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53e684c7-4857-4466-af02-5a98fad9f38c/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bd2232848f38516f4fb4022953e113fa5008bf5804c5e85e87585cfa28da0689 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 06:44:03,040 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 06:44:03,097 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53e684c7-4857-4466-af02-5a98fad9f38c/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-12-02 06:44:03,101 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 06:44:03,102 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 06:44:03,121 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 06:44:03,122 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 06:44:03,122 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 06:44:03,123 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 06:44:03,123 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 06:44:03,123 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 06:44:03,123 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 06:44:03,123 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 06:44:03,123 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-12-02 06:44:03,124 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-12-02 06:44:03,124 INFO L153 SettingsManager]: * Use old map elimination=false [2024-12-02 06:44:03,124 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-12-02 06:44:03,124 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-12-02 06:44:03,124 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-12-02 06:44:03,124 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 06:44:03,124 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-12-02 06:44:03,124 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 06:44:03,124 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 06:44:03,124 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 06:44:03,124 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 06:44:03,124 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-12-02 06:44:03,124 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-12-02 06:44:03,125 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-12-02 06:44:03,125 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 06:44:03,125 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 06:44:03,125 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 06:44:03,125 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-12-02 06:44:03,125 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 06:44:03,125 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 06:44:03,125 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 06:44:03,125 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 06:44:03,125 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 06:44:03,126 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-12-02 06:44:03,126 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-12-02 06:44:03,126 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_53e684c7-4857-4466-af02-5a98fad9f38c/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bd2232848f38516f4fb4022953e113fa5008bf5804c5e85e87585cfa28da0689 [2024-12-02 06:44:03,362 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 06:44:03,369 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 06:44:03,371 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 06:44:03,372 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 06:44:03,372 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 06:44:03,373 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53e684c7-4857-4466-af02-5a98fad9f38c/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/product-lines/minepump_spec4_product54.cil.c [2024-12-02 06:44:06,025 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53e684c7-4857-4466-af02-5a98fad9f38c/bin/uautomizer-verify-84ZbGMXZE1/data/ba49eeb87/ac74a746f1ec4ef5921a502a459dbe49/FLAG190ca3d22 [2024-12-02 06:44:06,244 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 06:44:06,244 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53e684c7-4857-4466-af02-5a98fad9f38c/sv-benchmarks/c/product-lines/minepump_spec4_product54.cil.c [2024-12-02 06:44:06,256 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53e684c7-4857-4466-af02-5a98fad9f38c/bin/uautomizer-verify-84ZbGMXZE1/data/ba49eeb87/ac74a746f1ec4ef5921a502a459dbe49/FLAG190ca3d22 [2024-12-02 06:44:06,270 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53e684c7-4857-4466-af02-5a98fad9f38c/bin/uautomizer-verify-84ZbGMXZE1/data/ba49eeb87/ac74a746f1ec4ef5921a502a459dbe49 [2024-12-02 06:44:06,273 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 06:44:06,274 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 06:44:06,275 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 06:44:06,275 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 06:44:06,278 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 06:44:06,278 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:44:06" (1/1) ... [2024-12-02 06:44:06,279 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5daf5cba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:44:06, skipping insertion in model container [2024-12-02 06:44:06,279 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:44:06" (1/1) ... [2024-12-02 06:44:06,305 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 06:44:06,512 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 06:44:06,523 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 06:44:06,529 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [49] [2024-12-02 06:44:06,530 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [121] [2024-12-02 06:44:06,530 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [362] [2024-12-02 06:44:06,530 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [390] [2024-12-02 06:44:06,530 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [489] [2024-12-02 06:44:06,530 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [855] [2024-12-02 06:44:06,530 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [958] [2024-12-02 06:44:06,530 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [967] [2024-12-02 06:44:06,580 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 06:44:06,599 INFO L204 MainTranslator]: Completed translation [2024-12-02 06:44:06,600 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:44:06 WrapperNode [2024-12-02 06:44:06,600 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 06:44:06,601 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 06:44:06,601 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 06:44:06,602 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 06:44:06,608 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:44:06" (1/1) ... [2024-12-02 06:44:06,619 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:44:06" (1/1) ... [2024-12-02 06:44:06,656 INFO L138 Inliner]: procedures = 57, calls = 104, calls flagged for inlining = 57, calls inlined = 141, statements flattened = 952 [2024-12-02 06:44:06,657 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 06:44:06,657 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 06:44:06,657 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 06:44:06,657 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 06:44:06,665 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:44:06" (1/1) ... [2024-12-02 06:44:06,665 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:44:06" (1/1) ... [2024-12-02 06:44:06,669 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:44:06" (1/1) ... [2024-12-02 06:44:06,688 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-12-02 06:44:06,688 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:44:06" (1/1) ... [2024-12-02 06:44:06,688 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:44:06" (1/1) ... [2024-12-02 06:44:06,699 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:44:06" (1/1) ... [2024-12-02 06:44:06,701 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:44:06" (1/1) ... [2024-12-02 06:44:06,709 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:44:06" (1/1) ... [2024-12-02 06:44:06,711 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:44:06" (1/1) ... [2024-12-02 06:44:06,713 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:44:06" (1/1) ... [2024-12-02 06:44:06,717 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 06:44:06,718 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 06:44:06,718 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 06:44:06,719 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 06:44:06,720 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:44:06" (1/1) ... [2024-12-02 06:44:06,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 06:44:06,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53e684c7-4857-4466-af02-5a98fad9f38c/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:44:06,747 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53e684c7-4857-4466-af02-5a98fad9f38c/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 06:44:06,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53e684c7-4857-4466-af02-5a98fad9f38c/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-12-02 06:44:06,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 06:44:06,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 06:44:06,770 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 06:44:06,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 06:44:06,828 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 06:44:06,830 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 06:44:07,346 INFO L? ?]: Removed 235 outVars from TransFormulas that were not future-live. [2024-12-02 06:44:07,346 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 06:44:07,361 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 06:44:07,361 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-12-02 06:44:07,361 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:44:07 BoogieIcfgContainer [2024-12-02 06:44:07,361 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 06:44:07,362 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-12-02 06:44:07,362 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-12-02 06:44:07,368 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-12-02 06:44:07,368 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-12-02 06:44:07,368 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.12 06:44:06" (1/3) ... [2024-12-02 06:44:07,369 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@68a842ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 06:44:07, skipping insertion in model container [2024-12-02 06:44:07,370 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-12-02 06:44:07,370 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:44:06" (2/3) ... [2024-12-02 06:44:07,370 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@68a842ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 06:44:07, skipping insertion in model container [2024-12-02 06:44:07,370 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-12-02 06:44:07,370 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:44:07" (3/3) ... [2024-12-02 06:44:07,371 INFO L363 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product54.cil.c [2024-12-02 06:44:07,413 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-12-02 06:44:07,413 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-12-02 06:44:07,413 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-12-02 06:44:07,413 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-12-02 06:44:07,414 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-12-02 06:44:07,414 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-12-02 06:44:07,414 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-12-02 06:44:07,414 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-12-02 06:44:07,418 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 272 states, 271 states have (on average 1.3690036900369005) internal successors, (371), 271 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:44:07,441 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 177 [2024-12-02 06:44:07,441 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 06:44:07,441 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 06:44:07,446 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:44:07,446 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:44:07,446 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-12-02 06:44:07,447 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 272 states, 271 states have (on average 1.3690036900369005) internal successors, (371), 271 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:44:07,455 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 177 [2024-12-02 06:44:07,455 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 06:44:07,455 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 06:44:07,456 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:44:07,456 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:44:07,461 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;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret24#1, main_~retValue_acc~4#1, main_~tmp~7#1;havoc main_~retValue_acc~4#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~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1;" "main_#t~ret24#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret24#1;havoc main_#t~ret24#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;" [2024-12-02 06:44:07,461 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);havoc test_#t~nondet7#1;test_~tmp___1~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1;" "assume 0 != test_~tmp___1~0#1;" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume !(0 != ~systemActive~0);" "assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret22#1, __utac_acc__Specification4_spec__1_#t~ret23#1, __utac_acc__Specification4_spec__1_~tmp~6#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification4_spec__1_~tmp~6#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~9#1;havoc getWaterLevel_~retValue_acc~9#1;getWaterLevel_~retValue_acc~9#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~9#1;" "__utac_acc__Specification4_spec__1_#t~ret22#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~9#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~6#1 := __utac_acc__Specification4_spec__1_#t~ret22#1;havoc __utac_acc__Specification4_spec__1_#t~ret22#1;" "assume !(0 == __utac_acc__Specification4_spec__1_~tmp~6#1);" "havoc __utac_acc__Specification4_spec__1_#t~ret22#1, __utac_acc__Specification4_spec__1_#t~ret23#1, __utac_acc__Specification4_spec__1_~tmp~6#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :end_inline___utac_acc__Specification4_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2024-12-02 06:44:07,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:44:07,465 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2024-12-02 06:44:07,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 06:44:07,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455933112] [2024-12-02 06:44:07,471 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:44:07,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:44:07,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 06:44:07,534 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 06:44:07,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 06:44:07,560 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 06:44:07,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:44:07,563 INFO L85 PathProgramCache]: Analyzing trace with hash 1126117136, now seen corresponding path program 1 times [2024-12-02 06:44:07,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 06:44:07,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666504696] [2024-12-02 06:44:07,563 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:44:07,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:44:07,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 06:44:07,572 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 06:44:07,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 06:44:07,580 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 06:44:07,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:44:07,581 INFO L85 PathProgramCache]: Analyzing trace with hash -1813431084, now seen corresponding path program 1 times [2024-12-02 06:44:07,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 06:44:07,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099446365] [2024-12-02 06:44:07,581 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:44:07,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:44:07,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:44:07,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-12-02 06:44:07,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099446365] [2024-12-02 06:44:07,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099446365] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:44:07,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [593581317] [2024-12-02 06:44:07,748 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:44:07,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:44:07,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53e684c7-4857-4466-af02-5a98fad9f38c/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:44:07,751 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53e684c7-4857-4466-af02-5a98fad9f38c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:44:07,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53e684c7-4857-4466-af02-5a98fad9f38c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 06:44:07,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:44:07,821 INFO L256 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 06:44:07,823 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:44:07,862 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:44:07,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [593581317] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:44:07,894 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 06:44:07,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 2, 2] total 6 [2024-12-02 06:44:07,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242903600] [2024-12-02 06:44:07,895 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 06:44:07,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-12-02 06:44:07,973 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 06:44:07,974 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-12-02 06:44:07,975 INFO L87 Difference]: Start difference. First operand has 272 states, 271 states have (on average 1.3690036900369005) internal successors, (371), 271 states have internal predecessors, (371), 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 5.857142857142857) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:44:08,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:44:08,061 INFO L93 Difference]: Finished difference Result 266 states and 354 transitions. [2024-12-02 06:44:08,062 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 266 states and 354 transitions. [2024-12-02 06:44:08,066 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 171 [2024-12-02 06:44:08,073 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 266 states to 256 states and 344 transitions. [2024-12-02 06:44:08,074 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 256 [2024-12-02 06:44:08,075 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 256 [2024-12-02 06:44:08,075 INFO L73 IsDeterministic]: Start isDeterministic. Operand 256 states and 344 transitions. [2024-12-02 06:44:08,076 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-12-02 06:44:08,077 INFO L218 hiAutomatonCegarLoop]: Abstraction has 256 states and 344 transitions. [2024-12-02 06:44:08,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states and 344 transitions. [2024-12-02 06:44:08,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 256. [2024-12-02 06:44:08,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 256 states have (on average 1.34375) internal successors, (344), 255 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:44:08,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 344 transitions. [2024-12-02 06:44:08,104 INFO L240 hiAutomatonCegarLoop]: Abstraction has 256 states and 344 transitions. [2024-12-02 06:44:08,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:44:08,108 INFO L425 stractBuchiCegarLoop]: Abstraction has 256 states and 344 transitions. [2024-12-02 06:44:08,108 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-12-02 06:44:08,108 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 256 states and 344 transitions. [2024-12-02 06:44:08,110 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 171 [2024-12-02 06:44:08,110 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 06:44:08,110 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 06:44:08,111 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:44:08,111 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:44:08,111 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;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret24#1, main_~retValue_acc~4#1, main_~tmp~7#1;havoc main_~retValue_acc~4#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~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1;" "main_#t~ret24#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret24#1;havoc main_#t~ret24#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;" [2024-12-02 06:44:08,112 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);havoc test_#t~nondet7#1;test_~tmp___1~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1;" "assume 0 != test_~tmp___1~0#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~ret11#1, isMethaneAlarm_~retValue_acc~0#1;havoc isMethaneAlarm_~retValue_acc~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;isMethaneLevelCritical_~retValue_acc~8#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~8#1;" "isMethaneAlarm_#t~ret11#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~0#1 := isMethaneAlarm_#t~ret11#1;havoc isMethaneAlarm_#t~ret11#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~0#1;" "processEnvironment_#t~ret10#1 := isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret11#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__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret22#1, __utac_acc__Specification4_spec__1_#t~ret23#1, __utac_acc__Specification4_spec__1_~tmp~6#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification4_spec__1_~tmp~6#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~9#1;havoc getWaterLevel_~retValue_acc~9#1;getWaterLevel_~retValue_acc~9#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~9#1;" "__utac_acc__Specification4_spec__1_#t~ret22#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~9#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~6#1 := __utac_acc__Specification4_spec__1_#t~ret22#1;havoc __utac_acc__Specification4_spec__1_#t~ret22#1;" "assume !(0 == __utac_acc__Specification4_spec__1_~tmp~6#1);" "havoc __utac_acc__Specification4_spec__1_#t~ret22#1, __utac_acc__Specification4_spec__1_#t~ret23#1, __utac_acc__Specification4_spec__1_~tmp~6#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :end_inline___utac_acc__Specification4_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2024-12-02 06:44:08,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:44:08,112 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2024-12-02 06:44:08,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 06:44:08,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514638016] [2024-12-02 06:44:08,112 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:44:08,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:44:08,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 06:44:08,122 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 06:44:08,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 06:44:08,130 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 06:44:08,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:44:08,131 INFO L85 PathProgramCache]: Analyzing trace with hash -1297602791, now seen corresponding path program 1 times [2024-12-02 06:44:08,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 06:44:08,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248226758] [2024-12-02 06:44:08,131 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:44:08,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:44:08,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:44:08,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-12-02 06:44:08,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248226758] [2024-12-02 06:44:08,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248226758] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:44:08,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [509021726] [2024-12-02 06:44:08,154 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:44:08,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:44:08,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53e684c7-4857-4466-af02-5a98fad9f38c/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:44:08,157 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53e684c7-4857-4466-af02-5a98fad9f38c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:44:08,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53e684c7-4857-4466-af02-5a98fad9f38c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 06:44:08,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:44:08,203 INFO L256 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 06:44:08,204 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:44:08,210 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:44:08,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [509021726] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:44:08,216 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 06:44:08,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-12-02 06:44:08,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322558159] [2024-12-02 06:44:08,216 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 06:44:08,216 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-12-02 06:44:08,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-12-02 06:44:08,217 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:44:08,217 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:44:08,217 INFO L87 Difference]: Start difference. First operand 256 states and 344 transitions. cyclomatic complexity: 90 Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:44:08,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:44:08,333 INFO L93 Difference]: Finished difference Result 265 states and 336 transitions. [2024-12-02 06:44:08,333 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 265 states and 336 transitions. [2024-12-02 06:44:08,335 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 182 [2024-12-02 06:44:08,337 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 265 states to 265 states and 336 transitions. [2024-12-02 06:44:08,337 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 265 [2024-12-02 06:44:08,338 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 265 [2024-12-02 06:44:08,338 INFO L73 IsDeterministic]: Start isDeterministic. Operand 265 states and 336 transitions. [2024-12-02 06:44:08,339 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-12-02 06:44:08,339 INFO L218 hiAutomatonCegarLoop]: Abstraction has 265 states and 336 transitions. [2024-12-02 06:44:08,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states and 336 transitions. [2024-12-02 06:44:08,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 265. [2024-12-02 06:44:08,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 265 states have (on average 1.2679245283018867) internal successors, (336), 264 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:44:08,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 336 transitions. [2024-12-02 06:44:08,348 INFO L240 hiAutomatonCegarLoop]: Abstraction has 265 states and 336 transitions. [2024-12-02 06:44:08,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:44:08,349 INFO L425 stractBuchiCegarLoop]: Abstraction has 265 states and 336 transitions. [2024-12-02 06:44:08,349 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-12-02 06:44:08,349 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 265 states and 336 transitions. [2024-12-02 06:44:08,351 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 182 [2024-12-02 06:44:08,351 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 06:44:08,351 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 06:44:08,351 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:44:08,351 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:44:08,352 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;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret24#1, main_~retValue_acc~4#1, main_~tmp~7#1;havoc main_~retValue_acc~4#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~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1;" "main_#t~ret24#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret24#1;havoc main_#t~ret24#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;" [2024-12-02 06:44:08,352 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);havoc test_#t~nondet7#1;test_~tmp___1~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1;" "assume 0 != test_~tmp___1~0#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__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret9#1, processEnvironment__wrappee__lowWaterSensor_~tmp~2#1;havoc processEnvironment__wrappee__lowWaterSensor_~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~ret20#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~10#1;havoc isHighWaterSensorDry_~retValue_acc~10#1;" "assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~10#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~10#1;" "isHighWaterLevel_#t~ret20#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~10#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret20#1;havoc isHighWaterLevel_#t~ret20#1;" "assume 0 != isHighWaterLevel_~tmp~4#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~ret20#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~4#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__lowWaterSensor_#t~ret9#1, processEnvironment__wrappee__lowWaterSensor_~tmp~2#1;assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true;" "havoc processEnvironment_#t~ret10#1, processEnvironment_~tmp~3#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret22#1, __utac_acc__Specification4_spec__1_#t~ret23#1, __utac_acc__Specification4_spec__1_~tmp~6#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification4_spec__1_~tmp~6#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~9#1;havoc getWaterLevel_~retValue_acc~9#1;getWaterLevel_~retValue_acc~9#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~9#1;" "__utac_acc__Specification4_spec__1_#t~ret22#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~9#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~6#1 := __utac_acc__Specification4_spec__1_#t~ret22#1;havoc __utac_acc__Specification4_spec__1_#t~ret22#1;" "assume !(0 == __utac_acc__Specification4_spec__1_~tmp~6#1);" "havoc __utac_acc__Specification4_spec__1_#t~ret22#1, __utac_acc__Specification4_spec__1_#t~ret23#1, __utac_acc__Specification4_spec__1_~tmp~6#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :end_inline___utac_acc__Specification4_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2024-12-02 06:44:08,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:44:08,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2024-12-02 06:44:08,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 06:44:08,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758814965] [2024-12-02 06:44:08,352 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:44:08,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:44:08,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 06:44:08,360 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 06:44:08,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 06:44:08,367 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 06:44:08,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:44:08,368 INFO L85 PathProgramCache]: Analyzing trace with hash -581275804, now seen corresponding path program 1 times [2024-12-02 06:44:08,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 06:44:08,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066252713] [2024-12-02 06:44:08,368 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:44:08,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:44:08,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:44:08,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-12-02 06:44:08,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066252713] [2024-12-02 06:44:08,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066252713] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:44:08,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2063490024] [2024-12-02 06:44:08,407 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:44:08,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:44:08,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53e684c7-4857-4466-af02-5a98fad9f38c/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:44:08,409 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53e684c7-4857-4466-af02-5a98fad9f38c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:44:08,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53e684c7-4857-4466-af02-5a98fad9f38c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 06:44:08,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:44:08,459 INFO L256 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 06:44:08,460 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:44:08,471 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:44:08,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2063490024] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:44:08,479 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 06:44:08,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 4 [2024-12-02 06:44:08,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483471531] [2024-12-02 06:44:08,479 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 06:44:08,480 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-12-02 06:44:08,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-12-02 06:44:08,480 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:44:08,480 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:44:08,480 INFO L87 Difference]: Start difference. First operand 265 states and 336 transitions. cyclomatic complexity: 73 Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:44:08,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:44:08,597 INFO L93 Difference]: Finished difference Result 283 states and 354 transitions. [2024-12-02 06:44:08,597 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 283 states and 354 transitions. [2024-12-02 06:44:08,599 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 194 [2024-12-02 06:44:08,601 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 283 states to 283 states and 354 transitions. [2024-12-02 06:44:08,601 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 283 [2024-12-02 06:44:08,602 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 283 [2024-12-02 06:44:08,602 INFO L73 IsDeterministic]: Start isDeterministic. Operand 283 states and 354 transitions. [2024-12-02 06:44:08,603 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-12-02 06:44:08,603 INFO L218 hiAutomatonCegarLoop]: Abstraction has 283 states and 354 transitions. [2024-12-02 06:44:08,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states and 354 transitions. [2024-12-02 06:44:08,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 283. [2024-12-02 06:44:08,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 283 states have (on average 1.2508833922261484) internal successors, (354), 282 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:44:08,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 354 transitions. [2024-12-02 06:44:08,612 INFO L240 hiAutomatonCegarLoop]: Abstraction has 283 states and 354 transitions. [2024-12-02 06:44:08,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 06:44:08,613 INFO L425 stractBuchiCegarLoop]: Abstraction has 283 states and 354 transitions. [2024-12-02 06:44:08,614 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-12-02 06:44:08,614 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 283 states and 354 transitions. [2024-12-02 06:44:08,615 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 194 [2024-12-02 06:44:08,616 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 06:44:08,616 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 06:44:08,616 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:44:08,616 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:44:08,616 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;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret24#1, main_~retValue_acc~4#1, main_~tmp~7#1;havoc main_~retValue_acc~4#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~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1;" "main_#t~ret24#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret24#1;havoc main_#t~ret24#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;" [2024-12-02 06:44:08,616 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_startSystem } true;~systemActive~0 := 1;" "assume { :end_inline_startSystem } true;" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret10#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret9#1, processEnvironment__wrappee__lowWaterSensor_~tmp~2#1;havoc processEnvironment__wrappee__lowWaterSensor_~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~ret20#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~10#1;havoc isHighWaterSensorDry_~retValue_acc~10#1;" "assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~10#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~10#1;" "isHighWaterLevel_#t~ret20#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~10#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret20#1;havoc isHighWaterLevel_#t~ret20#1;" "assume !(0 != isHighWaterLevel_~tmp~4#1);isHighWaterLevel_~tmp___0~1#1 := 1;" "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~ret20#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~4#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__lowWaterSensor_#t~ret9#1, processEnvironment__wrappee__lowWaterSensor_~tmp~2#1;assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true;" "havoc processEnvironment_#t~ret10#1, processEnvironment_~tmp~3#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret22#1, __utac_acc__Specification4_spec__1_#t~ret23#1, __utac_acc__Specification4_spec__1_~tmp~6#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification4_spec__1_~tmp~6#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~9#1;havoc getWaterLevel_~retValue_acc~9#1;getWaterLevel_~retValue_acc~9#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~9#1;" "__utac_acc__Specification4_spec__1_#t~ret22#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~9#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~6#1 := __utac_acc__Specification4_spec__1_#t~ret22#1;havoc __utac_acc__Specification4_spec__1_#t~ret22#1;" "assume !(0 == __utac_acc__Specification4_spec__1_~tmp~6#1);" "havoc __utac_acc__Specification4_spec__1_#t~ret22#1, __utac_acc__Specification4_spec__1_#t~ret23#1, __utac_acc__Specification4_spec__1_~tmp~6#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :end_inline___utac_acc__Specification4_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2024-12-02 06:44:08,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:44:08,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2024-12-02 06:44:08,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 06:44:08,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572550332] [2024-12-02 06:44:08,617 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:44:08,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:44:08,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 06:44:08,624 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 06:44:08,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 06:44:08,630 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 06:44:08,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:44:08,631 INFO L85 PathProgramCache]: Analyzing trace with hash -251825593, now seen corresponding path program 1 times [2024-12-02 06:44:08,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 06:44:08,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521391790] [2024-12-02 06:44:08,631 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:44:08,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:44:08,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:44:08,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-12-02 06:44:08,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521391790] [2024-12-02 06:44:08,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521391790] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:44:08,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1303066012] [2024-12-02 06:44:08,687 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:44:08,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:44:08,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53e684c7-4857-4466-af02-5a98fad9f38c/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:44:08,690 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53e684c7-4857-4466-af02-5a98fad9f38c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:44:08,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53e684c7-4857-4466-af02-5a98fad9f38c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 06:44:08,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:44:08,736 INFO L256 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 06:44:08,738 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:44:08,768 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:44:08,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1303066012] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:44:08,799 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 06:44:08,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2024-12-02 06:44:08,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140134898] [2024-12-02 06:44:08,800 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 06:44:08,800 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-12-02 06:44:08,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-12-02 06:44:08,801 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 06:44:08,801 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-12-02 06:44:08,801 INFO L87 Difference]: Start difference. First operand 283 states and 354 transitions. cyclomatic complexity: 73 Second operand has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:44:09,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:44:09,008 INFO L93 Difference]: Finished difference Result 310 states and 381 transitions. [2024-12-02 06:44:09,008 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 310 states and 381 transitions. [2024-12-02 06:44:09,010 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 212 [2024-12-02 06:44:09,011 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 310 states to 310 states and 381 transitions. [2024-12-02 06:44:09,011 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 310 [2024-12-02 06:44:09,011 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 310 [2024-12-02 06:44:09,011 INFO L73 IsDeterministic]: Start isDeterministic. Operand 310 states and 381 transitions. [2024-12-02 06:44:09,012 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-12-02 06:44:09,012 INFO L218 hiAutomatonCegarLoop]: Abstraction has 310 states and 381 transitions. [2024-12-02 06:44:09,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states and 381 transitions. [2024-12-02 06:44:09,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 310. [2024-12-02 06:44:09,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 310 states have (on average 1.229032258064516) internal successors, (381), 309 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:44:09,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 381 transitions. [2024-12-02 06:44:09,020 INFO L240 hiAutomatonCegarLoop]: Abstraction has 310 states and 381 transitions. [2024-12-02 06:44:09,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:44:09,021 INFO L425 stractBuchiCegarLoop]: Abstraction has 310 states and 381 transitions. [2024-12-02 06:44:09,022 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-12-02 06:44:09,022 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 310 states and 381 transitions. [2024-12-02 06:44:09,024 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 212 [2024-12-02 06:44:09,024 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 06:44:09,024 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 06:44:09,024 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:44:09,025 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:44:09,025 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;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret24#1, main_~retValue_acc~4#1, main_~tmp~7#1;havoc main_~retValue_acc~4#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~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1;" "main_#t~ret24#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret24#1;havoc main_#t~ret24#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;" [2024-12-02 06:44:09,025 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_startSystem } true;~systemActive~0 := 1;" "assume { :end_inline_startSystem } true;" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret10#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret9#1, processEnvironment__wrappee__lowWaterSensor_~tmp~2#1;havoc processEnvironment__wrappee__lowWaterSensor_~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~ret20#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~10#1;havoc isHighWaterSensorDry_~retValue_acc~10#1;" "assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~10#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~10#1;" "isHighWaterLevel_#t~ret20#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~10#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret20#1;havoc isHighWaterLevel_#t~ret20#1;" "assume 0 != isHighWaterLevel_~tmp~4#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~ret20#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~4#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__lowWaterSensor_#t~ret9#1, processEnvironment__wrappee__lowWaterSensor_~tmp~2#1;assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true;" "havoc processEnvironment_#t~ret10#1, processEnvironment_~tmp~3#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret22#1, __utac_acc__Specification4_spec__1_#t~ret23#1, __utac_acc__Specification4_spec__1_~tmp~6#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification4_spec__1_~tmp~6#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~9#1;havoc getWaterLevel_~retValue_acc~9#1;getWaterLevel_~retValue_acc~9#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~9#1;" "__utac_acc__Specification4_spec__1_#t~ret22#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~9#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~6#1 := __utac_acc__Specification4_spec__1_#t~ret22#1;havoc __utac_acc__Specification4_spec__1_#t~ret22#1;" "assume !(0 == __utac_acc__Specification4_spec__1_~tmp~6#1);" "havoc __utac_acc__Specification4_spec__1_#t~ret22#1, __utac_acc__Specification4_spec__1_#t~ret23#1, __utac_acc__Specification4_spec__1_~tmp~6#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :end_inline___utac_acc__Specification4_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2024-12-02 06:44:09,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:44:09,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 5 times [2024-12-02 06:44:09,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 06:44:09,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167572649] [2024-12-02 06:44:09,026 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:44:09,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:44:09,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 06:44:09,032 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 06:44:09,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 06:44:09,038 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 06:44:09,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:44:09,039 INFO L85 PathProgramCache]: Analyzing trace with hash 1614844099, now seen corresponding path program 1 times [2024-12-02 06:44:09,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 06:44:09,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140001650] [2024-12-02 06:44:09,039 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:44:09,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:44:09,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 06:44:09,046 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 06:44:09,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 06:44:09,052 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 06:44:09,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:44:09,053 INFO L85 PathProgramCache]: Analyzing trace with hash 1489109375, now seen corresponding path program 1 times [2024-12-02 06:44:09,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 06:44:09,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821816108] [2024-12-02 06:44:09,053 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:44:09,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:44:09,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 06:44:09,062 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 06:44:09,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 06:44:09,071 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 06:44:09,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 06:44:09,852 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 06:44:09,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 06:44:09,898 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 02.12 06:44:09 BoogieIcfgContainer [2024-12-02 06:44:09,898 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-12-02 06:44:09,899 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 06:44:09,899 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 06:44:09,899 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 06:44:09,900 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:44:07" (3/4) ... [2024-12-02 06:44:09,901 INFO L143 WitnessPrinter]: Generating witness for non-termination counterexample [2024-12-02 06:44:09,942 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53e684c7-4857-4466-af02-5a98fad9f38c/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 06:44:09,943 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 06:44:09,943 INFO L158 Benchmark]: Toolchain (without parser) took 3669.56ms. Allocated memory was 142.6MB in the beginning and 302.0MB in the end (delta: 159.4MB). Free memory was 117.4MB in the beginning and 230.6MB in the end (delta: -113.2MB). Peak memory consumption was 43.2MB. Max. memory is 16.1GB. [2024-12-02 06:44:09,944 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 142.6MB. Free memory is still 83.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 06:44:09,944 INFO L158 Benchmark]: CACSL2BoogieTranslator took 325.91ms. Allocated memory is still 142.6MB. Free memory was 117.3MB in the beginning and 98.6MB in the end (delta: 18.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 06:44:09,944 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.40ms. Allocated memory is still 142.6MB. Free memory was 98.6MB in the beginning and 94.7MB in the end (delta: 3.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 06:44:09,944 INFO L158 Benchmark]: Boogie Preprocessor took 60.63ms. Allocated memory is still 142.6MB. Free memory was 94.7MB in the beginning and 90.5MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 06:44:09,945 INFO L158 Benchmark]: RCFGBuilder took 643.16ms. Allocated memory is still 142.6MB. Free memory was 90.5MB in the beginning and 112.0MB in the end (delta: -21.5MB). Peak memory consumption was 48.4MB. Max. memory is 16.1GB. [2024-12-02 06:44:09,945 INFO L158 Benchmark]: BuchiAutomizer took 2536.24ms. Allocated memory was 142.6MB in the beginning and 302.0MB in the end (delta: 159.4MB). Free memory was 111.5MB in the beginning and 233.2MB in the end (delta: -121.7MB). Peak memory consumption was 36.8MB. Max. memory is 16.1GB. [2024-12-02 06:44:09,945 INFO L158 Benchmark]: Witness Printer took 43.61ms. Allocated memory is still 302.0MB. Free memory was 233.2MB in the beginning and 230.6MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 06:44:09,947 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 142.6MB. Free memory is still 83.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 325.91ms. Allocated memory is still 142.6MB. Free memory was 117.3MB in the beginning and 98.6MB in the end (delta: 18.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.40ms. Allocated memory is still 142.6MB. Free memory was 98.6MB in the beginning and 94.7MB in the end (delta: 3.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.63ms. Allocated memory is still 142.6MB. Free memory was 94.7MB in the beginning and 90.5MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 643.16ms. Allocated memory is still 142.6MB. Free memory was 90.5MB in the beginning and 112.0MB in the end (delta: -21.5MB). Peak memory consumption was 48.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 2536.24ms. Allocated memory was 142.6MB in the beginning and 302.0MB in the end (delta: 159.4MB). Free memory was 111.5MB in the beginning and 233.2MB in the end (delta: -121.7MB). Peak memory consumption was 36.8MB. Max. memory is 16.1GB. * Witness Printer took 43.61ms. Allocated memory is still 302.0MB. Free memory was 233.2MB in the beginning and 230.6MB in the end (delta: 2.5MB). 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: 121]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [121] - GenericResultAtLocation [Line: 362]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [362] - GenericResultAtLocation [Line: 390]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [390] - GenericResultAtLocation [Line: 489]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [489] - GenericResultAtLocation [Line: 855]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [855] - GenericResultAtLocation [Line: 958]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [958] - GenericResultAtLocation [Line: 967]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [967] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (4 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.4 modules have a trivial ranking function, the largest among these consists of 8 locations. The remainder module has 310 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.4s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 1.7s. Construction of modules took 0.3s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 4 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, 864 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 864 mSDsluCounter, 3433 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2333 mSDsCounter, 102 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 451 IncrementalHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 102 mSolverCounterUnsat, 1100 mSDtfsCounter, 451 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 67]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L131] int pumpRunning = 0; [L132] int systemActive = 1; [L391] int cleanupTimeShifts = 4; [L659] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L856] int waterLevel = 1; [L857] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L467] int retValue_acc ; [L468] int tmp ; [L472] FCALL select_helpers() [L473] FCALL select_features() [L474] CALL, EXPR valid_product() [L994] int retValue_acc ; [L997] retValue_acc = 1 [L998] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L474] RET, EXPR valid_product() [L474] tmp = valid_product() [L476] COND TRUE \read(tmp) [L478] FCALL setup() [L479] CALL runTest() [L458] CALL test() [L56] int splverifierCounter ; [L57] int tmp ; [L58] int tmp___0 ; [L59] int tmp___1 ; [L60] int tmp___2 ; [L63] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L67] COND TRUE splverifierCounter < 4 [L73] tmp = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp)) [L83] tmp___0 = __VERIFIER_nondet_int() [L85] COND FALSE !(\read(tmp___0)) [L93] tmp___2 = __VERIFIER_nondet_int() [L95] COND TRUE \read(tmp___2) [L97] CALL startSystem() [L358] systemActive = 1 [L97] RET startSystem() [L110] CALL timeShift() [L139] COND FALSE !(\read(pumpRunning)) [L146] COND TRUE \read(systemActive) [L148] CALL processEnvironment() [L220] int tmp ; [L223] COND FALSE !(\read(pumpRunning)) [L238] CALL processEnvironment__wrappee__lowWaterSensor() [L194] int tmp ; [L197] COND FALSE !(\read(pumpRunning)) [L212] CALL processEnvironment__wrappee__highWaterSensor() [L168] int tmp ; [L171] COND TRUE ! pumpRunning [L173] CALL, EXPR isHighWaterLevel() [L317] int retValue_acc ; [L318] int tmp ; [L319] int tmp___0 ; [L323] CALL, EXPR isHighWaterSensorDry() [L936] int retValue_acc ; [L939] COND TRUE waterLevel < 2 [L940] retValue_acc = 1 [L941] return (retValue_acc); [L323] RET, EXPR isHighWaterSensorDry() [L323] tmp = isHighWaterSensorDry() [L325] COND TRUE \read(tmp) [L326] tmp___0 = 0 [L330] retValue_acc = tmp___0 [L331] return (retValue_acc); [L173] RET, EXPR isHighWaterLevel() [L173] tmp = isHighWaterLevel() [L175] COND FALSE !(\read(tmp)) [L181] FCALL processEnvironment__wrappee__base() [L212] RET processEnvironment__wrappee__highWaterSensor() [L238] RET processEnvironment__wrappee__lowWaterSensor() [L148] RET processEnvironment() [L154] CALL __utac_acc__Specification4_spec__1() [L366] int tmp ; [L367] int tmp___0 ; [L371] CALL, EXPR getWaterLevel() [L927] int retValue_acc ; [L930] retValue_acc = waterLevel [L931] return (retValue_acc); [L371] RET, EXPR getWaterLevel() [L371] tmp = getWaterLevel() [L373] COND FALSE !(tmp == 0) [L154] RET __utac_acc__Specification4_spec__1() [L110] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 67]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L131] int pumpRunning = 0; [L132] int systemActive = 1; [L391] int cleanupTimeShifts = 4; [L659] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L856] int waterLevel = 1; [L857] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L467] int retValue_acc ; [L468] int tmp ; [L472] FCALL select_helpers() [L473] FCALL select_features() [L474] CALL, EXPR valid_product() [L994] int retValue_acc ; [L997] retValue_acc = 1 [L998] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L474] RET, EXPR valid_product() [L474] tmp = valid_product() [L476] COND TRUE \read(tmp) [L478] FCALL setup() [L479] CALL runTest() [L458] CALL test() [L56] int splverifierCounter ; [L57] int tmp ; [L58] int tmp___0 ; [L59] int tmp___1 ; [L60] int tmp___2 ; [L63] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L67] COND TRUE splverifierCounter < 4 [L73] tmp = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp)) [L83] tmp___0 = __VERIFIER_nondet_int() [L85] COND FALSE !(\read(tmp___0)) [L93] tmp___2 = __VERIFIER_nondet_int() [L95] COND TRUE \read(tmp___2) [L97] CALL startSystem() [L358] systemActive = 1 [L97] RET startSystem() [L110] CALL timeShift() [L139] COND FALSE !(\read(pumpRunning)) [L146] COND TRUE \read(systemActive) [L148] CALL processEnvironment() [L220] int tmp ; [L223] COND FALSE !(\read(pumpRunning)) [L238] CALL processEnvironment__wrappee__lowWaterSensor() [L194] int tmp ; [L197] COND FALSE !(\read(pumpRunning)) [L212] CALL processEnvironment__wrappee__highWaterSensor() [L168] int tmp ; [L171] COND TRUE ! pumpRunning [L173] CALL, EXPR isHighWaterLevel() [L317] int retValue_acc ; [L318] int tmp ; [L319] int tmp___0 ; [L323] CALL, EXPR isHighWaterSensorDry() [L936] int retValue_acc ; [L939] COND TRUE waterLevel < 2 [L940] retValue_acc = 1 [L941] return (retValue_acc); [L323] RET, EXPR isHighWaterSensorDry() [L323] tmp = isHighWaterSensorDry() [L325] COND TRUE \read(tmp) [L326] tmp___0 = 0 [L330] retValue_acc = tmp___0 [L331] return (retValue_acc); [L173] RET, EXPR isHighWaterLevel() [L173] tmp = isHighWaterLevel() [L175] COND FALSE !(\read(tmp)) [L181] FCALL processEnvironment__wrappee__base() [L212] RET processEnvironment__wrappee__highWaterSensor() [L238] RET processEnvironment__wrappee__lowWaterSensor() [L148] RET processEnvironment() [L154] CALL __utac_acc__Specification4_spec__1() [L366] int tmp ; [L367] int tmp___0 ; [L371] CALL, EXPR getWaterLevel() [L927] int retValue_acc ; [L930] retValue_acc = waterLevel [L931] return (retValue_acc); [L371] RET, EXPR getWaterLevel() [L371] tmp = getWaterLevel() [L373] COND FALSE !(tmp == 0) [L154] RET __utac_acc__Specification4_spec__1() [L110] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-12-02 06:44:09,965 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53e684c7-4857-4466-af02-5a98fad9f38c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 06:44:10,165 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53e684c7-4857-4466-af02-5a98fad9f38c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 06:44:10,360 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53e684c7-4857-4466-af02-5a98fad9f38c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 06:44:10,561 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53e684c7-4857-4466-af02-5a98fad9f38c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 06:44:10,761 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53e684c7-4857-4466-af02-5a98fad9f38c/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)