./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product45.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_3ce22c50-0899-40e3-8d38-a9e0dba94164/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ce22c50-0899-40e3-8d38-a9e0dba94164/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_3ce22c50-0899-40e3-8d38-a9e0dba94164/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ce22c50-0899-40e3-8d38-a9e0dba94164/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product45.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ce22c50-0899-40e3-8d38-a9e0dba94164/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_3ce22c50-0899-40e3-8d38-a9e0dba94164/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 603cfb64133b588a2e9c81e31ac984484d295feb0a468539180131e3ac5a47d6 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 14:54:27,332 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 14:54:27,388 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ce22c50-0899-40e3-8d38-a9e0dba94164/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-12-02 14:54:27,392 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 14:54:27,392 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 14:54:27,413 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 14:54:27,413 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 14:54:27,413 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 14:54:27,414 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 14:54:27,414 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 14:54:27,414 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 14:54:27,414 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 14:54:27,414 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 14:54:27,414 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-12-02 14:54:27,414 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-12-02 14:54:27,414 INFO L153 SettingsManager]: * Use old map elimination=false [2024-12-02 14:54:27,414 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-12-02 14:54:27,415 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-12-02 14:54:27,415 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-12-02 14:54:27,415 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 14:54:27,415 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-12-02 14:54:27,415 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 14:54:27,415 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 14:54:27,415 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 14:54:27,415 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 14:54:27,415 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-12-02 14:54:27,415 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-12-02 14:54:27,415 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-12-02 14:54:27,415 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 14:54:27,416 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 14:54:27,416 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 14:54:27,416 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-12-02 14:54:27,416 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 14:54:27,416 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 14:54:27,416 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 14:54:27,416 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 14:54:27,416 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 14:54:27,416 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-12-02 14:54:27,417 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-12-02 14:54:27,417 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_3ce22c50-0899-40e3-8d38-a9e0dba94164/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 -> 603cfb64133b588a2e9c81e31ac984484d295feb0a468539180131e3ac5a47d6 [2024-12-02 14:54:27,658 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 14:54:27,664 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 14:54:27,665 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 14:54:27,666 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 14:54:27,667 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 14:54:27,667 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ce22c50-0899-40e3-8d38-a9e0dba94164/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/product-lines/minepump_spec5_product45.cil.c [2024-12-02 14:54:30,267 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ce22c50-0899-40e3-8d38-a9e0dba94164/bin/uautomizer-verify-84ZbGMXZE1/data/96942551e/3f7c6d8c795844edbc5695a1df27b779/FLAG4ff412928 [2024-12-02 14:54:30,511 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 14:54:30,511 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ce22c50-0899-40e3-8d38-a9e0dba94164/sv-benchmarks/c/product-lines/minepump_spec5_product45.cil.c [2024-12-02 14:54:30,520 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ce22c50-0899-40e3-8d38-a9e0dba94164/bin/uautomizer-verify-84ZbGMXZE1/data/96942551e/3f7c6d8c795844edbc5695a1df27b779/FLAG4ff412928 [2024-12-02 14:54:30,851 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ce22c50-0899-40e3-8d38-a9e0dba94164/bin/uautomizer-verify-84ZbGMXZE1/data/96942551e/3f7c6d8c795844edbc5695a1df27b779 [2024-12-02 14:54:30,853 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 14:54:30,854 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 14:54:30,855 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 14:54:30,855 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 14:54:30,859 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 14:54:30,860 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:54:30" (1/1) ... [2024-12-02 14:54:30,860 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b9c039a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:54:30, skipping insertion in model container [2024-12-02 14:54:30,860 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:54:30" (1/1) ... [2024-12-02 14:54:30,886 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 14:54:31,088 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 14:54:31,100 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 14:54:31,107 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [49] [2024-12-02 14:54:31,109 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [150] [2024-12-02 14:54:31,109 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [159] [2024-12-02 14:54:31,109 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [525] [2024-12-02 14:54:31,109 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [575] [2024-12-02 14:54:31,109 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [777] [2024-12-02 14:54:31,109 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [843] [2024-12-02 14:54:31,109 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [881] [2024-12-02 14:54:31,158 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 14:54:31,176 INFO L204 MainTranslator]: Completed translation [2024-12-02 14:54:31,176 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:54:31 WrapperNode [2024-12-02 14:54:31,177 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 14:54:31,178 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 14:54:31,178 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 14:54:31,178 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 14:54:31,184 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:54:31" (1/1) ... [2024-12-02 14:54:31,196 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:54:31" (1/1) ... [2024-12-02 14:54:31,229 INFO L138 Inliner]: procedures = 56, calls = 103, calls flagged for inlining = 56, calls inlined = 105, statements flattened = 695 [2024-12-02 14:54:31,230 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 14:54:31,230 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 14:54:31,230 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 14:54:31,230 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 14:54:31,240 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:54:31" (1/1) ... [2024-12-02 14:54:31,240 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:54:31" (1/1) ... [2024-12-02 14:54:31,243 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:54:31" (1/1) ... [2024-12-02 14:54:31,258 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 14:54:31,259 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:54:31" (1/1) ... [2024-12-02 14:54:31,259 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:54:31" (1/1) ... [2024-12-02 14:54:31,268 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:54:31" (1/1) ... [2024-12-02 14:54:31,270 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:54:31" (1/1) ... [2024-12-02 14:54:31,276 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:54:31" (1/1) ... [2024-12-02 14:54:31,277 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:54:31" (1/1) ... [2024-12-02 14:54:31,279 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:54:31" (1/1) ... [2024-12-02 14:54:31,283 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 14:54:31,284 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 14:54:31,284 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 14:54:31,284 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 14:54:31,285 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:54:31" (1/1) ... [2024-12-02 14:54:31,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 14:54:31,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ce22c50-0899-40e3-8d38-a9e0dba94164/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:54:31,315 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ce22c50-0899-40e3-8d38-a9e0dba94164/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 14:54:31,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ce22c50-0899-40e3-8d38-a9e0dba94164/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-12-02 14:54:31,337 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 14:54:31,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 14:54:31,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 14:54:31,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 14:54:31,400 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 14:54:31,402 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 14:54:31,792 INFO L? ?]: Removed 163 outVars from TransFormulas that were not future-live. [2024-12-02 14:54:31,792 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 14:54:31,804 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 14:54:31,805 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-12-02 14:54:31,805 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:54:31 BoogieIcfgContainer [2024-12-02 14:54:31,805 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 14:54:31,806 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-12-02 14:54:31,806 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-12-02 14:54:31,810 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-12-02 14:54:31,811 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-12-02 14:54:31,811 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.12 02:54:30" (1/3) ... [2024-12-02 14:54:31,812 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4171db97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 02:54:31, skipping insertion in model container [2024-12-02 14:54:31,812 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-12-02 14:54:31,812 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:54:31" (2/3) ... [2024-12-02 14:54:31,812 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4171db97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 02:54:31, skipping insertion in model container [2024-12-02 14:54:31,812 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-12-02 14:54:31,812 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:54:31" (3/3) ... [2024-12-02 14:54:31,814 INFO L363 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product45.cil.c [2024-12-02 14:54:31,854 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-12-02 14:54:31,854 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-12-02 14:54:31,854 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-12-02 14:54:31,854 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-12-02 14:54:31,855 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-12-02 14:54:31,855 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-12-02 14:54:31,855 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-12-02 14:54:31,855 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-12-02 14:54:31,859 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 191 states, 190 states have (on average 1.3526315789473684) internal successors, (257), 190 states have internal predecessors, (257), 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 14:54:31,878 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 122 [2024-12-02 14:54:31,879 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 14:54:31,879 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 14:54:31,883 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:54:31,884 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:54:31,884 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-12-02 14:54:31,884 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 191 states, 190 states have (on average 1.3526315789473684) internal successors, (257), 190 states have internal predecessors, (257), 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 14:54:31,891 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 122 [2024-12-02 14:54:31,891 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 14:54:31,891 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 14:54:31,892 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:54:31,892 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:54:31,896 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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~11#1, main_~tmp~9#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1;" "main_#t~ret53#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret53#1;havoc main_#t~ret53#1;" "assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0;" "assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet48#1, test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-12-02 14:54:31,896 INFO L749 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet48#1;test_~tmp~8#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1;" "assume !(0 != test_~tmp~8#1);" "havoc test_#t~nondet49#1;test_~tmp___0~2#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1;" "assume !(0 != test_~tmp___0~2#1);" "havoc test_#t~nondet50#1;test_~tmp___2~0#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1;" "assume 0 != test_~tmp___2~0#1;" "assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret32#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~7#1;havoc isPumpRunning_~retValue_acc~7#1;isPumpRunning_~retValue_acc~7#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~7#1;" "__utac_acc__Specification5_spec__2_#t~ret32#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~7#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret32#1;havoc __utac_acc__Specification5_spec__2_#t~ret32#1;" "havoc __utac_acc__Specification5_spec__2_#t~ret32#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true;" "assume !(0 != ~pumpRunning~0);" "assume !(0 != ~systemActive~0);" "assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret33#1, __utac_acc__Specification5_spec__3_#t~ret34#1, __utac_acc__Specification5_spec__3_~tmp~3#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~3#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1;" "__utac_acc__Specification5_spec__3_#t~ret33#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~3#1 := __utac_acc__Specification5_spec__3_#t~ret33#1;havoc __utac_acc__Specification5_spec__3_#t~ret33#1;" "assume !(2 != __utac_acc__Specification5_spec__3_~tmp~3#1);" "havoc __utac_acc__Specification5_spec__3_#t~ret33#1, __utac_acc__Specification5_spec__3_#t~ret34#1, __utac_acc__Specification5_spec__3_~tmp~3#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true;" "assume { :end_inline_timeShift } true;" [2024-12-02 14:54:31,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:54:31,900 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2024-12-02 14:54:31,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 14:54:31,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716177226] [2024-12-02 14:54:31,906 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:54:31,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:54:31,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 14:54:31,982 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 14:54:31,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 14:54:32,009 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 14:54:32,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:54:32,011 INFO L85 PathProgramCache]: Analyzing trace with hash -337822590, now seen corresponding path program 1 times [2024-12-02 14:54:32,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 14:54:32,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273279835] [2024-12-02 14:54:32,011 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:54:32,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:54:32,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 14:54:32,020 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 14:54:32,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 14:54:32,027 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 14:54:32,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:54:32,029 INFO L85 PathProgramCache]: Analyzing trace with hash -1073764167, now seen corresponding path program 1 times [2024-12-02 14:54:32,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 14:54:32,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843948722] [2024-12-02 14:54:32,029 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:54:32,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:54:32,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:54:32,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-12-02 14:54:32,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843948722] [2024-12-02 14:54:32,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843948722] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:54:32,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [107591200] [2024-12-02 14:54:32,198 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:54:32,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:54:32,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ce22c50-0899-40e3-8d38-a9e0dba94164/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:54:32,200 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ce22c50-0899-40e3-8d38-a9e0dba94164/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:54:32,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ce22c50-0899-40e3-8d38-a9e0dba94164/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 14:54:32,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:54:32,269 INFO L256 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 14:54:32,271 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:54:32,321 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 14:54:32,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [107591200] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 14:54:32,359 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 14:54:32,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 2, 2] total 6 [2024-12-02 14:54:32,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869317134] [2024-12-02 14:54:32,360 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 14:54:32,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-12-02 14:54:32,449 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 14:54:32,450 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-12-02 14:54:32,451 INFO L87 Difference]: Start difference. First operand has 191 states, 190 states have (on average 1.3526315789473684) internal successors, (257), 190 states have internal predecessors, (257), 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 6.428571428571429) internal successors, (45), 6 states have internal predecessors, (45), 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 14:54:32,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:54:32,527 INFO L93 Difference]: Finished difference Result 185 states and 240 transitions. [2024-12-02 14:54:32,528 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 185 states and 240 transitions. [2024-12-02 14:54:32,532 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 116 [2024-12-02 14:54:32,538 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 185 states to 175 states and 230 transitions. [2024-12-02 14:54:32,539 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 175 [2024-12-02 14:54:32,540 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 175 [2024-12-02 14:54:32,540 INFO L73 IsDeterministic]: Start isDeterministic. Operand 175 states and 230 transitions. [2024-12-02 14:54:32,541 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-12-02 14:54:32,541 INFO L218 hiAutomatonCegarLoop]: Abstraction has 175 states and 230 transitions. [2024-12-02 14:54:32,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states and 230 transitions. [2024-12-02 14:54:32,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2024-12-02 14:54:32,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 175 states have (on average 1.3142857142857143) internal successors, (230), 174 states have internal predecessors, (230), 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 14:54:32,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 230 transitions. [2024-12-02 14:54:32,566 INFO L240 hiAutomatonCegarLoop]: Abstraction has 175 states and 230 transitions. [2024-12-02 14:54:32,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 14:54:32,570 INFO L425 stractBuchiCegarLoop]: Abstraction has 175 states and 230 transitions. [2024-12-02 14:54:32,570 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-12-02 14:54:32,570 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 175 states and 230 transitions. [2024-12-02 14:54:32,572 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 116 [2024-12-02 14:54:32,573 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 14:54:32,573 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 14:54:32,573 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:54:32,573 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 14:54:32,573 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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~11#1, main_~tmp~9#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1;" "main_#t~ret53#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret53#1;havoc main_#t~ret53#1;" "assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0;" "assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet48#1, test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-12-02 14:54:32,573 INFO L749 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet48#1;test_~tmp~8#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1;" "assume !(0 != test_~tmp~8#1);" "havoc test_#t~nondet49#1;test_~tmp___0~2#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1;" "assume !(0 != test_~tmp___0~2#1);" "havoc test_#t~nondet50#1;test_~tmp___2~0#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1;" "assume 0 != test_~tmp___2~0#1;" "assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret32#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~7#1;havoc isPumpRunning_~retValue_acc~7#1;isPumpRunning_~retValue_acc~7#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~7#1;" "__utac_acc__Specification5_spec__2_#t~ret32#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~7#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret32#1;havoc __utac_acc__Specification5_spec__2_#t~ret32#1;" "havoc __utac_acc__Specification5_spec__2_#t~ret32#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret35#1, processEnvironment__wrappee__methaneQuery_~tmp~4#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~4#1;" "assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment__wrappee__methaneQuery_#t~ret35#1, processEnvironment__wrappee__methaneQuery_~tmp~4#1;assume { :end_inline_processEnvironment__wrappee__methaneQuery } true;" "havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~5#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret33#1, __utac_acc__Specification5_spec__3_#t~ret34#1, __utac_acc__Specification5_spec__3_~tmp~3#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~3#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1;" "__utac_acc__Specification5_spec__3_#t~ret33#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~3#1 := __utac_acc__Specification5_spec__3_#t~ret33#1;havoc __utac_acc__Specification5_spec__3_#t~ret33#1;" "assume !(2 != __utac_acc__Specification5_spec__3_~tmp~3#1);" "havoc __utac_acc__Specification5_spec__3_#t~ret33#1, __utac_acc__Specification5_spec__3_#t~ret34#1, __utac_acc__Specification5_spec__3_~tmp~3#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true;" "assume { :end_inline_timeShift } true;" [2024-12-02 14:54:32,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:54:32,574 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2024-12-02 14:54:32,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 14:54:32,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410302776] [2024-12-02 14:54:32,574 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:54:32,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:54:32,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 14:54:32,583 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 14:54:32,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 14:54:32,594 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 14:54:32,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:54:32,594 INFO L85 PathProgramCache]: Analyzing trace with hash 600631941, now seen corresponding path program 1 times [2024-12-02 14:54:32,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 14:54:32,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515280658] [2024-12-02 14:54:32,595 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:54:32,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:54:32,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:54:32,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-12-02 14:54:32,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515280658] [2024-12-02 14:54:32,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515280658] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:54:32,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [609982329] [2024-12-02 14:54:32,617 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:54:32,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:54:32,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ce22c50-0899-40e3-8d38-a9e0dba94164/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:54:32,620 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ce22c50-0899-40e3-8d38-a9e0dba94164/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:54:32,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ce22c50-0899-40e3-8d38-a9e0dba94164/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 14:54:32,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:54:32,657 INFO L256 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 14:54:32,658 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:54:32,665 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 14:54:32,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [609982329] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 14:54:32,672 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 14:54:32,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-12-02 14:54:32,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494439422] [2024-12-02 14:54:32,672 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 14:54:32,673 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-12-02 14:54:32,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-12-02 14:54:32,673 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:54:32,673 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 14:54:32,673 INFO L87 Difference]: Start difference. First operand 175 states and 230 transitions. cyclomatic complexity: 57 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 14:54:32,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:54:32,750 INFO L93 Difference]: Finished difference Result 243 states and 308 transitions. [2024-12-02 14:54:32,750 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 243 states and 308 transitions. [2024-12-02 14:54:32,752 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 166 [2024-12-02 14:54:32,754 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 243 states to 243 states and 308 transitions. [2024-12-02 14:54:32,754 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 243 [2024-12-02 14:54:32,755 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 243 [2024-12-02 14:54:32,755 INFO L73 IsDeterministic]: Start isDeterministic. Operand 243 states and 308 transitions. [2024-12-02 14:54:32,756 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-12-02 14:54:32,756 INFO L218 hiAutomatonCegarLoop]: Abstraction has 243 states and 308 transitions. [2024-12-02 14:54:32,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states and 308 transitions. [2024-12-02 14:54:32,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 243. [2024-12-02 14:54:32,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 243 states have (on average 1.2674897119341564) internal successors, (308), 242 states have internal predecessors, (308), 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 14:54:32,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 308 transitions. [2024-12-02 14:54:32,765 INFO L240 hiAutomatonCegarLoop]: Abstraction has 243 states and 308 transitions. [2024-12-02 14:54:32,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:54:32,766 INFO L425 stractBuchiCegarLoop]: Abstraction has 243 states and 308 transitions. [2024-12-02 14:54:32,766 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-12-02 14:54:32,767 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 243 states and 308 transitions. [2024-12-02 14:54:32,768 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 166 [2024-12-02 14:54:32,768 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 14:54:32,768 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 14:54:32,769 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:54:32,769 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:54:32,769 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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~11#1, main_~tmp~9#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1;" "main_#t~ret53#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret53#1;havoc main_#t~ret53#1;" "assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0;" "assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet48#1, test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-12-02 14:54:32,769 INFO L749 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet48#1;test_~tmp~8#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1;" "assume !(0 != test_~tmp~8#1);" "havoc test_#t~nondet49#1;test_~tmp___0~2#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1;" "assume !(0 != test_~tmp___0~2#1);" "havoc test_#t~nondet50#1;test_~tmp___2~0#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1;" "assume 0 != test_~tmp___2~0#1;" "assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret32#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~7#1;havoc isPumpRunning_~retValue_acc~7#1;isPumpRunning_~retValue_acc~7#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~7#1;" "__utac_acc__Specification5_spec__2_#t~ret32#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~7#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret32#1;havoc __utac_acc__Specification5_spec__2_#t~ret32#1;" "havoc __utac_acc__Specification5_spec__2_#t~ret32#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret35#1, processEnvironment__wrappee__methaneQuery_~tmp~4#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~4#1;" "assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret47#1, isHighWaterLevel_~retValue_acc~8#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~8#1;havoc isHighWaterLevel_~tmp~7#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;" "assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1;" "isHighWaterLevel_#t~ret47#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7#1 := isHighWaterLevel_#t~ret47#1;havoc isHighWaterLevel_#t~ret47#1;" "assume 0 != isHighWaterLevel_~tmp~7#1;isHighWaterLevel_~tmp___0~1#1 := 0;" "isHighWaterLevel_~retValue_acc~8#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~8#1;" "processEnvironment__wrappee__methaneQuery_#t~ret35#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret47#1, isHighWaterLevel_~retValue_acc~8#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__methaneQuery_~tmp~4#1 := processEnvironment__wrappee__methaneQuery_#t~ret35#1;havoc processEnvironment__wrappee__methaneQuery_#t~ret35#1;" "assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment__wrappee__methaneQuery_#t~ret35#1, processEnvironment__wrappee__methaneQuery_~tmp~4#1;assume { :end_inline_processEnvironment__wrappee__methaneQuery } true;" "havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~5#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret33#1, __utac_acc__Specification5_spec__3_#t~ret34#1, __utac_acc__Specification5_spec__3_~tmp~3#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~3#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1;" "__utac_acc__Specification5_spec__3_#t~ret33#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~3#1 := __utac_acc__Specification5_spec__3_#t~ret33#1;havoc __utac_acc__Specification5_spec__3_#t~ret33#1;" "assume !(2 != __utac_acc__Specification5_spec__3_~tmp~3#1);" "havoc __utac_acc__Specification5_spec__3_#t~ret33#1, __utac_acc__Specification5_spec__3_#t~ret34#1, __utac_acc__Specification5_spec__3_~tmp~3#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true;" "assume { :end_inline_timeShift } true;" [2024-12-02 14:54:32,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:54:32,770 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2024-12-02 14:54:32,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 14:54:32,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562819578] [2024-12-02 14:54:32,770 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:54:32,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:54:32,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 14:54:32,777 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 14:54:32,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 14:54:32,785 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 14:54:32,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:54:32,786 INFO L85 PathProgramCache]: Analyzing trace with hash 1345180637, now seen corresponding path program 1 times [2024-12-02 14:54:32,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 14:54:32,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620094589] [2024-12-02 14:54:32,786 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:54:32,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:54:32,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:54:32,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-12-02 14:54:32,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620094589] [2024-12-02 14:54:32,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620094589] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:54:32,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [649637870] [2024-12-02 14:54:32,864 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:54:32,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:54:32,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ce22c50-0899-40e3-8d38-a9e0dba94164/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:54:32,866 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ce22c50-0899-40e3-8d38-a9e0dba94164/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:54:32,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ce22c50-0899-40e3-8d38-a9e0dba94164/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 14:54:32,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:54:32,915 INFO L256 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 14:54:32,916 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:54:32,947 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 14:54:32,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [649637870] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 14:54:32,978 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 14:54:32,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 5 [2024-12-02 14:54:32,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51121854] [2024-12-02 14:54:32,978 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 14:54:32,979 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-12-02 14:54:32,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-12-02 14:54:32,979 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 14:54:32,979 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:54:32,979 INFO L87 Difference]: Start difference. First operand 243 states and 308 transitions. cyclomatic complexity: 67 Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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 14:54:33,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:54:33,096 INFO L93 Difference]: Finished difference Result 476 states and 592 transitions. [2024-12-02 14:54:33,096 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 476 states and 592 transitions. [2024-12-02 14:54:33,100 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 330 [2024-12-02 14:54:33,103 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 476 states to 476 states and 592 transitions. [2024-12-02 14:54:33,103 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 476 [2024-12-02 14:54:33,104 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 476 [2024-12-02 14:54:33,104 INFO L73 IsDeterministic]: Start isDeterministic. Operand 476 states and 592 transitions. [2024-12-02 14:54:33,106 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-12-02 14:54:33,106 INFO L218 hiAutomatonCegarLoop]: Abstraction has 476 states and 592 transitions. [2024-12-02 14:54:33,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states and 592 transitions. [2024-12-02 14:54:33,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 476. [2024-12-02 14:54:33,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 476 states, 476 states have (on average 1.2436974789915967) internal successors, (592), 475 states have internal predecessors, (592), 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 14:54:33,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 592 transitions. [2024-12-02 14:54:33,122 INFO L240 hiAutomatonCegarLoop]: Abstraction has 476 states and 592 transitions. [2024-12-02 14:54:33,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 14:54:33,124 INFO L425 stractBuchiCegarLoop]: Abstraction has 476 states and 592 transitions. [2024-12-02 14:54:33,124 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-12-02 14:54:33,124 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 476 states and 592 transitions. [2024-12-02 14:54:33,127 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 330 [2024-12-02 14:54:33,127 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 14:54:33,127 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 14:54:33,128 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:54:33,128 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:54:33,128 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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~11#1, main_~tmp~9#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1;" "main_#t~ret53#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret53#1;havoc main_#t~ret53#1;" "assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0;" "assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet48#1, test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-12-02 14:54:33,128 INFO L749 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet48#1;test_~tmp~8#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1;" "assume !(0 != test_~tmp~8#1);" "havoc test_#t~nondet49#1;test_~tmp___0~2#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1;" "assume !(0 != test_~tmp___0~2#1);" "havoc test_#t~nondet50#1;test_~tmp___2~0#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1;" "assume 0 != test_~tmp___2~0#1;" "assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret32#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~7#1;havoc isPumpRunning_~retValue_acc~7#1;isPumpRunning_~retValue_acc~7#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~7#1;" "__utac_acc__Specification5_spec__2_#t~ret32#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~7#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret32#1;havoc __utac_acc__Specification5_spec__2_#t~ret32#1;" "havoc __utac_acc__Specification5_spec__2_#t~ret32#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret35#1, processEnvironment__wrappee__methaneQuery_~tmp~4#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~4#1;" "assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret47#1, isHighWaterLevel_~retValue_acc~8#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~8#1;havoc isHighWaterLevel_~tmp~7#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;" "assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1;" "isHighWaterLevel_#t~ret47#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7#1 := isHighWaterLevel_#t~ret47#1;havoc isHighWaterLevel_#t~ret47#1;" "assume 0 != isHighWaterLevel_~tmp~7#1;isHighWaterLevel_~tmp___0~1#1 := 0;" "isHighWaterLevel_~retValue_acc~8#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~8#1;" "processEnvironment__wrappee__methaneQuery_#t~ret35#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret47#1, isHighWaterLevel_~retValue_acc~8#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__methaneQuery_~tmp~4#1 := processEnvironment__wrappee__methaneQuery_#t~ret35#1;havoc processEnvironment__wrappee__methaneQuery_#t~ret35#1;" "assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment__wrappee__methaneQuery_#t~ret35#1, processEnvironment__wrappee__methaneQuery_~tmp~4#1;assume { :end_inline_processEnvironment__wrappee__methaneQuery } true;" "havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~5#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret33#1, __utac_acc__Specification5_spec__3_#t~ret34#1, __utac_acc__Specification5_spec__3_~tmp~3#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~3#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1;" "__utac_acc__Specification5_spec__3_#t~ret33#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~3#1 := __utac_acc__Specification5_spec__3_#t~ret33#1;havoc __utac_acc__Specification5_spec__3_#t~ret33#1;" "assume 2 != __utac_acc__Specification5_spec__3_~tmp~3#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~7#1;havoc isPumpRunning_~retValue_acc~7#1;isPumpRunning_~retValue_acc~7#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~7#1;" "__utac_acc__Specification5_spec__3_#t~ret34#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~7#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~0#1 := __utac_acc__Specification5_spec__3_#t~ret34#1;havoc __utac_acc__Specification5_spec__3_#t~ret34#1;" "assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0#1);" "havoc __utac_acc__Specification5_spec__3_#t~ret33#1, __utac_acc__Specification5_spec__3_#t~ret34#1, __utac_acc__Specification5_spec__3_~tmp~3#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true;" "assume { :end_inline_timeShift } true;" [2024-12-02 14:54:33,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:54:33,128 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2024-12-02 14:54:33,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 14:54:33,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079834884] [2024-12-02 14:54:33,129 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:54:33,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:54:33,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 14:54:33,135 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 14:54:33,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 14:54:33,142 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 14:54:33,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:54:33,142 INFO L85 PathProgramCache]: Analyzing trace with hash -87566504, now seen corresponding path program 1 times [2024-12-02 14:54:33,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 14:54:33,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382118655] [2024-12-02 14:54:33,142 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:54:33,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:54:33,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 14:54:33,150 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 14:54:33,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 14:54:33,157 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 14:54:33,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:54:33,157 INFO L85 PathProgramCache]: Analyzing trace with hash -2053423999, now seen corresponding path program 1 times [2024-12-02 14:54:33,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 14:54:33,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951527739] [2024-12-02 14:54:33,158 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:54:33,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:54:33,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 14:54:33,173 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 14:54:33,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 14:54:33,186 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 14:54:34,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 14:54:34,065 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 14:54:34,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 14:54:34,110 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 02.12 02:54:34 BoogieIcfgContainer [2024-12-02 14:54:34,110 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-12-02 14:54:34,110 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 14:54:34,110 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 14:54:34,111 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 14:54:34,111 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:54:31" (3/4) ... [2024-12-02 14:54:34,112 INFO L143 WitnessPrinter]: Generating witness for non-termination counterexample [2024-12-02 14:54:34,148 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ce22c50-0899-40e3-8d38-a9e0dba94164/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 14:54:34,148 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 14:54:34,149 INFO L158 Benchmark]: Toolchain (without parser) took 3294.76ms. Allocated memory is still 142.6MB. Free memory was 115.5MB in the beginning and 80.5MB in the end (delta: 35.0MB). Peak memory consumption was 34.5MB. Max. memory is 16.1GB. [2024-12-02 14:54:34,149 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 142.6MB. Free memory is still 83.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 14:54:34,150 INFO L158 Benchmark]: CACSL2BoogieTranslator took 321.67ms. Allocated memory is still 142.6MB. Free memory was 115.5MB in the beginning and 97.0MB in the end (delta: 18.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 14:54:34,150 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.22ms. Allocated memory is still 142.6MB. Free memory was 97.0MB in the beginning and 93.8MB in the end (delta: 3.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 14:54:34,150 INFO L158 Benchmark]: Boogie Preprocessor took 52.83ms. Allocated memory is still 142.6MB. Free memory was 93.8MB in the beginning and 90.5MB in the end (delta: 3.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 14:54:34,150 INFO L158 Benchmark]: RCFGBuilder took 521.54ms. Allocated memory is still 142.6MB. Free memory was 90.5MB in the beginning and 61.6MB in the end (delta: 28.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 14:54:34,151 INFO L158 Benchmark]: BuchiAutomizer took 2303.90ms. Allocated memory is still 142.6MB. Free memory was 61.6MB in the beginning and 83.0MB in the end (delta: -21.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 14:54:34,151 INFO L158 Benchmark]: Witness Printer took 37.95ms. Allocated memory is still 142.6MB. Free memory was 83.0MB in the beginning and 80.5MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 14:54:34,153 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 142.6MB. Free memory is still 83.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 321.67ms. Allocated memory is still 142.6MB. Free memory was 115.5MB in the beginning and 97.0MB in the end (delta: 18.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.22ms. Allocated memory is still 142.6MB. Free memory was 97.0MB in the beginning and 93.8MB in the end (delta: 3.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.83ms. Allocated memory is still 142.6MB. Free memory was 93.8MB in the beginning and 90.5MB in the end (delta: 3.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 521.54ms. Allocated memory is still 142.6MB. Free memory was 90.5MB in the beginning and 61.6MB in the end (delta: 28.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 2303.90ms. Allocated memory is still 142.6MB. Free memory was 61.6MB in the beginning and 83.0MB in the end (delta: -21.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 37.95ms. Allocated memory is still 142.6MB. Free memory was 83.0MB in the beginning and 80.5MB 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,"Environment.i","") [49] - GenericResultAtLocation [Line: 150]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [150] - GenericResultAtLocation [Line: 159]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [159] - GenericResultAtLocation [Line: 525]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [525] - GenericResultAtLocation [Line: 575]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [575] - GenericResultAtLocation [Line: 777]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [777] - GenericResultAtLocation [Line: 843]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [843] - GenericResultAtLocation [Line: 881]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [881] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 7 locations. The remainder module has 476 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.2s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 1.7s. Construction of modules took 0.1s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 606 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 606 mSDsluCounter, 1899 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1218 mSDsCounter, 49 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 141 IncrementalHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 49 mSolverCounterUnsat, 681 mSDtfsCounter, 141 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI2 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: 791]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L57] int waterLevel = 1; [L58] int methaneLevelCritical = 0; [L329] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L527] int switchedOnBeforeTS ; [L580] int pumpRunning = 0; [L581] int systemActive = 1; [L882] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L956] int retValue_acc ; [L957] int tmp ; [L961] FCALL select_helpers() [L962] FCALL select_features() [L963] CALL, EXPR valid_product() [L873] int retValue_acc ; [L876] retValue_acc = 1 [L877] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L963] RET, EXPR valid_product() [L963] tmp = valid_product() [L965] COND TRUE \read(tmp) [L967] FCALL setup() [L968] CALL runTest() [L949] CALL __utac_acc__Specification5_spec__1() [L532] switchedOnBeforeTS = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L949] RET __utac_acc__Specification5_spec__1() [L950] CALL test() [L780] int splverifierCounter ; [L781] int tmp ; [L782] int tmp___0 ; [L783] int tmp___1 ; [L784] int tmp___2 ; [L787] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] Loop: [L791] COND TRUE splverifierCounter < 4 [L797] tmp = __VERIFIER_nondet_int() [L799] COND FALSE !(\read(tmp)) [L807] tmp___0 = __VERIFIER_nondet_int() [L809] COND FALSE !(\read(tmp___0)) [L817] tmp___2 = __VERIFIER_nondet_int() [L819] COND TRUE \read(tmp___2) [L832] CALL timeShift() [L588] CALL __utac_acc__Specification5_spec__2() [L541] CALL, EXPR isPumpRunning() [L714] int retValue_acc ; [L717] retValue_acc = pumpRunning [L718] return (retValue_acc); [L541] RET, EXPR isPumpRunning() [L541] switchedOnBeforeTS = isPumpRunning() [L588] RET __utac_acc__Specification5_spec__2() [L590] COND FALSE !(\read(pumpRunning)) [L597] COND TRUE \read(systemActive) [L599] CALL processEnvironment() [L645] int tmp ; [L648] COND FALSE !(\read(pumpRunning)) [L663] CALL processEnvironment__wrappee__methaneQuery() [L619] int tmp ; [L622] COND TRUE ! pumpRunning [L624] CALL, EXPR isHighWaterLevel() [L759] int retValue_acc ; [L760] int tmp ; [L761] int tmp___0 ; [L765] CALL, EXPR isHighWaterSensorDry() [L137] int retValue_acc ; [L140] COND TRUE waterLevel < 2 [L141] retValue_acc = 1 [L142] return (retValue_acc); [L765] RET, EXPR isHighWaterSensorDry() [L765] tmp = isHighWaterSensorDry() [L767] COND TRUE \read(tmp) [L768] tmp___0 = 0 [L772] retValue_acc = tmp___0 [L773] return (retValue_acc); [L624] RET, EXPR isHighWaterLevel() [L624] tmp = isHighWaterLevel() [L626] COND FALSE !(\read(tmp)) [L632] FCALL processEnvironment__wrappee__base() [L663] RET processEnvironment__wrappee__methaneQuery() [L599] RET processEnvironment() [L605] CALL __utac_acc__Specification5_spec__3() [L547] int tmp ; [L548] int tmp___0 ; [L552] CALL, EXPR getWaterLevel() [L128] int retValue_acc ; [L131] retValue_acc = waterLevel [L132] return (retValue_acc); [L552] RET, EXPR getWaterLevel() [L552] tmp = getWaterLevel() [L554] COND TRUE tmp != 2 [L556] CALL, EXPR isPumpRunning() [L714] int retValue_acc ; [L717] retValue_acc = pumpRunning [L718] return (retValue_acc); [L556] RET, EXPR isPumpRunning() [L556] tmp___0 = isPumpRunning() [L558] COND FALSE !(\read(tmp___0)) [L605] RET __utac_acc__Specification5_spec__3() [L832] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 791]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L57] int waterLevel = 1; [L58] int methaneLevelCritical = 0; [L329] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L527] int switchedOnBeforeTS ; [L580] int pumpRunning = 0; [L581] int systemActive = 1; [L882] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L956] int retValue_acc ; [L957] int tmp ; [L961] FCALL select_helpers() [L962] FCALL select_features() [L963] CALL, EXPR valid_product() [L873] int retValue_acc ; [L876] retValue_acc = 1 [L877] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L963] RET, EXPR valid_product() [L963] tmp = valid_product() [L965] COND TRUE \read(tmp) [L967] FCALL setup() [L968] CALL runTest() [L949] CALL __utac_acc__Specification5_spec__1() [L532] switchedOnBeforeTS = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L949] RET __utac_acc__Specification5_spec__1() [L950] CALL test() [L780] int splverifierCounter ; [L781] int tmp ; [L782] int tmp___0 ; [L783] int tmp___1 ; [L784] int tmp___2 ; [L787] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] Loop: [L791] COND TRUE splverifierCounter < 4 [L797] tmp = __VERIFIER_nondet_int() [L799] COND FALSE !(\read(tmp)) [L807] tmp___0 = __VERIFIER_nondet_int() [L809] COND FALSE !(\read(tmp___0)) [L817] tmp___2 = __VERIFIER_nondet_int() [L819] COND TRUE \read(tmp___2) [L832] CALL timeShift() [L588] CALL __utac_acc__Specification5_spec__2() [L541] CALL, EXPR isPumpRunning() [L714] int retValue_acc ; [L717] retValue_acc = pumpRunning [L718] return (retValue_acc); [L541] RET, EXPR isPumpRunning() [L541] switchedOnBeforeTS = isPumpRunning() [L588] RET __utac_acc__Specification5_spec__2() [L590] COND FALSE !(\read(pumpRunning)) [L597] COND TRUE \read(systemActive) [L599] CALL processEnvironment() [L645] int tmp ; [L648] COND FALSE !(\read(pumpRunning)) [L663] CALL processEnvironment__wrappee__methaneQuery() [L619] int tmp ; [L622] COND TRUE ! pumpRunning [L624] CALL, EXPR isHighWaterLevel() [L759] int retValue_acc ; [L760] int tmp ; [L761] int tmp___0 ; [L765] CALL, EXPR isHighWaterSensorDry() [L137] int retValue_acc ; [L140] COND TRUE waterLevel < 2 [L141] retValue_acc = 1 [L142] return (retValue_acc); [L765] RET, EXPR isHighWaterSensorDry() [L765] tmp = isHighWaterSensorDry() [L767] COND TRUE \read(tmp) [L768] tmp___0 = 0 [L772] retValue_acc = tmp___0 [L773] return (retValue_acc); [L624] RET, EXPR isHighWaterLevel() [L624] tmp = isHighWaterLevel() [L626] COND FALSE !(\read(tmp)) [L632] FCALL processEnvironment__wrappee__base() [L663] RET processEnvironment__wrappee__methaneQuery() [L599] RET processEnvironment() [L605] CALL __utac_acc__Specification5_spec__3() [L547] int tmp ; [L548] int tmp___0 ; [L552] CALL, EXPR getWaterLevel() [L128] int retValue_acc ; [L131] retValue_acc = waterLevel [L132] return (retValue_acc); [L552] RET, EXPR getWaterLevel() [L552] tmp = getWaterLevel() [L554] COND TRUE tmp != 2 [L556] CALL, EXPR isPumpRunning() [L714] int retValue_acc ; [L717] retValue_acc = pumpRunning [L718] return (retValue_acc); [L556] RET, EXPR isPumpRunning() [L556] tmp___0 = isPumpRunning() [L558] COND FALSE !(\read(tmp___0)) [L605] RET __utac_acc__Specification5_spec__3() [L832] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-12-02 14:54:34,167 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ce22c50-0899-40e3-8d38-a9e0dba94164/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 14:54:34,365 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ce22c50-0899-40e3-8d38-a9e0dba94164/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 14:54:34,565 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ce22c50-0899-40e3-8d38-a9e0dba94164/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 14:54:34,766 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ce22c50-0899-40e3-8d38-a9e0dba94164/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)