./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_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_bca12961-541c-4868-a02d-bfbce18729ad/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bca12961-541c-4868-a02d-bfbce18729ad/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_bca12961-541c-4868-a02d-bfbce18729ad/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bca12961-541c-4868-a02d-bfbce18729ad/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product45.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bca12961-541c-4868-a02d-bfbce18729ad/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_bca12961-541c-4868-a02d-bfbce18729ad/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 4c4adbf609ddd472cb6a462753c6f5cc9af64c97af02da4060f4102700285790 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 08:43:43,689 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 08:43:43,739 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bca12961-541c-4868-a02d-bfbce18729ad/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-12-02 08:43:43,743 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 08:43:43,743 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 08:43:43,764 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 08:43:43,765 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 08:43:43,765 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 08:43:43,766 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 08:43:43,766 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 08:43:43,766 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 08:43:43,766 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 08:43:43,766 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 08:43:43,766 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-12-02 08:43:43,766 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-12-02 08:43:43,767 INFO L153 SettingsManager]: * Use old map elimination=false [2024-12-02 08:43:43,767 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-12-02 08:43:43,767 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-12-02 08:43:43,767 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-12-02 08:43:43,767 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 08:43:43,767 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-12-02 08:43:43,767 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 08:43:43,767 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 08:43:43,767 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 08:43:43,767 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 08:43:43,767 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-12-02 08:43:43,768 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-12-02 08:43:43,768 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-12-02 08:43:43,768 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 08:43:43,768 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 08:43:43,768 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 08:43:43,768 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-12-02 08:43:43,768 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 08:43:43,768 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 08:43:43,768 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 08:43:43,768 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:43:43,769 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 08:43:43,769 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-12-02 08:43:43,769 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-12-02 08:43:43,769 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_bca12961-541c-4868-a02d-bfbce18729ad/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 -> 4c4adbf609ddd472cb6a462753c6f5cc9af64c97af02da4060f4102700285790 [2024-12-02 08:43:44,000 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 08:43:44,008 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 08:43:44,010 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 08:43:44,011 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 08:43:44,011 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 08:43:44,012 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bca12961-541c-4868-a02d-bfbce18729ad/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/product-lines/minepump_spec3_product45.cil.c [2024-12-02 08:43:46,672 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bca12961-541c-4868-a02d-bfbce18729ad/bin/uautomizer-verify-84ZbGMXZE1/data/50499608f/d51346758b2c4aaab19bf9d7fe97084b/FLAG41f259f31 [2024-12-02 08:43:46,867 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 08:43:46,868 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bca12961-541c-4868-a02d-bfbce18729ad/sv-benchmarks/c/product-lines/minepump_spec3_product45.cil.c [2024-12-02 08:43:46,877 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bca12961-541c-4868-a02d-bfbce18729ad/bin/uautomizer-verify-84ZbGMXZE1/data/50499608f/d51346758b2c4aaab19bf9d7fe97084b/FLAG41f259f31 [2024-12-02 08:43:46,888 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bca12961-541c-4868-a02d-bfbce18729ad/bin/uautomizer-verify-84ZbGMXZE1/data/50499608f/d51346758b2c4aaab19bf9d7fe97084b [2024-12-02 08:43:46,889 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 08:43:46,890 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 08:43:46,891 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 08:43:46,891 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 08:43:46,894 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 08:43:46,894 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:43:46" (1/1) ... [2024-12-02 08:43:46,895 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e74d047 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:43:46, skipping insertion in model container [2024-12-02 08:43:46,895 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:43:46" (1/1) ... [2024-12-02 08:43:46,919 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 08:43:47,122 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:43:47,133 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 08:43:47,141 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [49] [2024-12-02 08:43:47,142 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [87] [2024-12-02 08:43:47,142 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [186] [2024-12-02 08:43:47,142 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [288] [2024-12-02 08:43:47,142 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [485] [2024-12-02 08:43:47,142 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [550] [2024-12-02 08:43:47,142 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [585] [2024-12-02 08:43:47,142 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [594] [2024-12-02 08:43:47,187 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:43:47,204 INFO L204 MainTranslator]: Completed translation [2024-12-02 08:43:47,205 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:43:47 WrapperNode [2024-12-02 08:43:47,205 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 08:43:47,206 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 08:43:47,206 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 08:43:47,206 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 08:43:47,212 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:43:47" (1/1) ... [2024-12-02 08:43:47,224 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:43:47" (1/1) ... [2024-12-02 08:43:47,256 INFO L138 Inliner]: procedures = 54, calls = 101, calls flagged for inlining = 54, calls inlined = 101, statements flattened = 688 [2024-12-02 08:43:47,256 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 08:43:47,257 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 08:43:47,257 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 08:43:47,257 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 08:43:47,266 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:43:47" (1/1) ... [2024-12-02 08:43:47,266 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:43:47" (1/1) ... [2024-12-02 08:43:47,269 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:43:47" (1/1) ... [2024-12-02 08:43:47,284 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 08:43:47,285 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:43:47" (1/1) ... [2024-12-02 08:43:47,285 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:43:47" (1/1) ... [2024-12-02 08:43:47,293 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:43:47" (1/1) ... [2024-12-02 08:43:47,295 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:43:47" (1/1) ... [2024-12-02 08:43:47,300 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:43:47" (1/1) ... [2024-12-02 08:43:47,302 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:43:47" (1/1) ... [2024-12-02 08:43:47,303 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:43:47" (1/1) ... [2024-12-02 08:43:47,306 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 08:43:47,307 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 08:43:47,307 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 08:43:47,307 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 08:43:47,308 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:43:47" (1/1) ... [2024-12-02 08:43:47,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:43:47,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bca12961-541c-4868-a02d-bfbce18729ad/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:43:47,339 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bca12961-541c-4868-a02d-bfbce18729ad/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:43:47,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bca12961-541c-4868-a02d-bfbce18729ad/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-12-02 08:43:47,366 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 08:43:47,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 08:43:47,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 08:43:47,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 08:43:47,435 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 08:43:47,436 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 08:43:47,807 INFO L? ?]: Removed 169 outVars from TransFormulas that were not future-live. [2024-12-02 08:43:47,807 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 08:43:47,818 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 08:43:47,818 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-12-02 08:43:47,818 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:43:47 BoogieIcfgContainer [2024-12-02 08:43:47,818 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 08:43:47,819 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-12-02 08:43:47,819 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-12-02 08:43:47,831 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-12-02 08:43:47,832 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-12-02 08:43:47,832 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.12 08:43:46" (1/3) ... [2024-12-02 08:43:47,832 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7d0717d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 08:43:47, skipping insertion in model container [2024-12-02 08:43:47,833 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-12-02 08:43:47,833 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:43:47" (2/3) ... [2024-12-02 08:43:47,833 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7d0717d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 08:43:47, skipping insertion in model container [2024-12-02 08:43:47,833 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-12-02 08:43:47,833 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:43:47" (3/3) ... [2024-12-02 08:43:47,834 INFO L363 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product45.cil.c [2024-12-02 08:43:47,881 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-12-02 08:43:47,881 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-12-02 08:43:47,881 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-12-02 08:43:47,881 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-12-02 08:43:47,881 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-12-02 08:43:47,882 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-12-02 08:43:47,882 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-12-02 08:43:47,882 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-12-02 08:43:47,887 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 187 states, 186 states have (on average 1.3602150537634408) internal successors, (253), 186 states have internal predecessors, (253), 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 08:43:47,908 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 120 [2024-12-02 08:43:47,908 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 08:43:47,908 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 08:43:47,913 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:43:47,913 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:43:47,913 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-12-02 08:43:47,914 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 187 states, 186 states have (on average 1.3602150537634408) internal successors, (253), 186 states have internal predecessors, (253), 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 08:43:47,919 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 120 [2024-12-02 08:43:47,919 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 08:43:47,919 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 08:43:47,920 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:43:47,920 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:43:47,924 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;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret12#1, main_~retValue_acc~3#1, main_~tmp~1#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~1#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~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1;" "main_#t~ret12#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret12#1;havoc main_#t~ret12#1;" "assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet26#1, test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~2#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-12-02 08:43:47,924 INFO L749 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet26#1;test_~tmp~6#1 := test_#t~nondet26#1;havoc test_#t~nondet26#1;" "assume !(0 != test_~tmp~6#1);" "havoc test_#t~nondet27#1;test_~tmp___0~2#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1;" "assume !(0 != test_~tmp___0~2#1);" "havoc test_#t~nondet28#1;test_~tmp___2~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1;" "assume 0 != test_~tmp___2~0#1;" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume !(0 != ~systemActive~0);" "assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1;" "__utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1;" "assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1;" "havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2024-12-02 08:43:47,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:43:47,928 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2024-12-02 08:43:47,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 08:43:47,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555151628] [2024-12-02 08:43:47,933 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:43:47,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:43:48,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:43:48,013 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 08:43:48,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:43:48,042 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 08:43:48,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:43:48,044 INFO L85 PathProgramCache]: Analyzing trace with hash -1224601528, now seen corresponding path program 1 times [2024-12-02 08:43:48,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 08:43:48,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115330399] [2024-12-02 08:43:48,045 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:43:48,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:43:48,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:43:48,052 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 08:43:48,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:43:48,059 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 08:43:48,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:43:48,060 INFO L85 PathProgramCache]: Analyzing trace with hash -1180878332, now seen corresponding path program 1 times [2024-12-02 08:43:48,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 08:43:48,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703045690] [2024-12-02 08:43:48,060 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:43:48,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:43:48,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:43:48,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-12-02 08:43:48,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703045690] [2024-12-02 08:43:48,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703045690] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:43:48,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1372081531] [2024-12-02 08:43:48,236 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:43:48,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:43:48,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bca12961-541c-4868-a02d-bfbce18729ad/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:43:48,238 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bca12961-541c-4868-a02d-bfbce18729ad/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:43:48,241 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bca12961-541c-4868-a02d-bfbce18729ad/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 08:43:48,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:43:48,305 INFO L256 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 08:43:48,307 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:43:48,351 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:43:48,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1372081531] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:43:48,390 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 08:43:48,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 2, 2] total 6 [2024-12-02 08:43:48,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926274943] [2024-12-02 08:43:48,392 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 08:43:48,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-12-02 08:43:48,473 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 08:43:48,474 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:43:48,476 INFO L87 Difference]: Start difference. First operand has 187 states, 186 states have (on average 1.3602150537634408) internal successors, (253), 186 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 6 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:43:48,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:43:48,549 INFO L93 Difference]: Finished difference Result 181 states and 236 transitions. [2024-12-02 08:43:48,550 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 181 states and 236 transitions. [2024-12-02 08:43:48,553 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 114 [2024-12-02 08:43:48,560 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 181 states to 171 states and 226 transitions. [2024-12-02 08:43:48,561 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 171 [2024-12-02 08:43:48,561 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 171 [2024-12-02 08:43:48,562 INFO L73 IsDeterministic]: Start isDeterministic. Operand 171 states and 226 transitions. [2024-12-02 08:43:48,563 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-12-02 08:43:48,563 INFO L218 hiAutomatonCegarLoop]: Abstraction has 171 states and 226 transitions. [2024-12-02 08:43:48,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states and 226 transitions. [2024-12-02 08:43:48,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2024-12-02 08:43:48,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 171 states have (on average 1.3216374269005848) internal successors, (226), 170 states have internal predecessors, (226), 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 08:43:48,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 226 transitions. [2024-12-02 08:43:48,593 INFO L240 hiAutomatonCegarLoop]: Abstraction has 171 states and 226 transitions. [2024-12-02 08:43:48,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:43:48,597 INFO L425 stractBuchiCegarLoop]: Abstraction has 171 states and 226 transitions. [2024-12-02 08:43:48,598 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-12-02 08:43:48,598 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 171 states and 226 transitions. [2024-12-02 08:43:48,600 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 114 [2024-12-02 08:43:48,600 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 08:43:48,600 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 08:43:48,600 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:43:48,600 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] [2024-12-02 08:43:48,601 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;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret12#1, main_~retValue_acc~3#1, main_~tmp~1#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~1#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~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1;" "main_#t~ret12#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret12#1;havoc main_#t~ret12#1;" "assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet26#1, test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~2#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-12-02 08:43:48,601 INFO L749 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet26#1;test_~tmp~6#1 := test_#t~nondet26#1;havoc test_#t~nondet26#1;" "assume !(0 != test_~tmp~6#1);" "havoc test_#t~nondet27#1;test_~tmp___0~2#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1;" "assume !(0 != test_~tmp___0~2#1);" "havoc test_#t~nondet28#1;test_~tmp___2~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1;" "assume 0 != test_~tmp___2~0#1;" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret14#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret13#1, processEnvironment__wrappee__methaneQuery_~tmp~2#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~2#1;" "assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment__wrappee__methaneQuery_#t~ret13#1, processEnvironment__wrappee__methaneQuery_~tmp~2#1;assume { :end_inline_processEnvironment__wrappee__methaneQuery } true;" "havoc processEnvironment_#t~ret14#1, processEnvironment_~tmp~3#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1;" "__utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1;" "assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1;" "havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2024-12-02 08:43:48,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:43:48,601 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2024-12-02 08:43:48,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 08:43:48,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566770987] [2024-12-02 08:43:48,602 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:43:48,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:43:48,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:43:48,610 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 08:43:48,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:43:48,618 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 08:43:48,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:43:48,618 INFO L85 PathProgramCache]: Analyzing trace with hash -973432627, now seen corresponding path program 1 times [2024-12-02 08:43:48,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 08:43:48,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948979077] [2024-12-02 08:43:48,619 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:43:48,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:43:48,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:43:48,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-12-02 08:43:48,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948979077] [2024-12-02 08:43:48,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948979077] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:43:48,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1043815526] [2024-12-02 08:43:48,637 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:43:48,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:43:48,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bca12961-541c-4868-a02d-bfbce18729ad/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:43:48,640 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bca12961-541c-4868-a02d-bfbce18729ad/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:43:48,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bca12961-541c-4868-a02d-bfbce18729ad/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 08:43:48,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:43:48,682 INFO L256 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 08:43:48,683 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:43:48,691 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:43:48,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1043815526] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:43:48,698 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 08:43:48,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-12-02 08:43:48,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617007939] [2024-12-02 08:43:48,698 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 08:43:48,699 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-12-02 08:43:48,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-12-02 08:43:48,699 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:43:48,699 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:43:48,700 INFO L87 Difference]: Start difference. First operand 171 states and 226 transitions. cyclomatic complexity: 57 Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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 08:43:48,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:43:48,804 INFO L93 Difference]: Finished difference Result 236 states and 301 transitions. [2024-12-02 08:43:48,804 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 236 states and 301 transitions. [2024-12-02 08:43:48,806 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 162 [2024-12-02 08:43:48,808 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 236 states to 236 states and 301 transitions. [2024-12-02 08:43:48,808 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 236 [2024-12-02 08:43:48,809 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 236 [2024-12-02 08:43:48,809 INFO L73 IsDeterministic]: Start isDeterministic. Operand 236 states and 301 transitions. [2024-12-02 08:43:48,810 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-12-02 08:43:48,810 INFO L218 hiAutomatonCegarLoop]: Abstraction has 236 states and 301 transitions. [2024-12-02 08:43:48,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states and 301 transitions. [2024-12-02 08:43:48,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 236. [2024-12-02 08:43:48,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 236 states have (on average 1.2754237288135593) internal successors, (301), 235 states have internal predecessors, (301), 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 08:43:48,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 301 transitions. [2024-12-02 08:43:48,819 INFO L240 hiAutomatonCegarLoop]: Abstraction has 236 states and 301 transitions. [2024-12-02 08:43:48,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:43:48,820 INFO L425 stractBuchiCegarLoop]: Abstraction has 236 states and 301 transitions. [2024-12-02 08:43:48,820 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-12-02 08:43:48,820 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 236 states and 301 transitions. [2024-12-02 08:43:48,822 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 162 [2024-12-02 08:43:48,822 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 08:43:48,822 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 08:43:48,822 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:43:48,822 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] [2024-12-02 08:43:48,823 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;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret12#1, main_~retValue_acc~3#1, main_~tmp~1#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~1#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~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1;" "main_#t~ret12#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret12#1;havoc main_#t~ret12#1;" "assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet26#1, test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~2#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-12-02 08:43:48,823 INFO L749 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet26#1;test_~tmp~6#1 := test_#t~nondet26#1;havoc test_#t~nondet26#1;" "assume !(0 != test_~tmp~6#1);" "havoc test_#t~nondet27#1;test_~tmp___0~2#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1;" "assume !(0 != test_~tmp___0~2#1);" "havoc test_#t~nondet28#1;test_~tmp___2~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1;" "assume 0 != test_~tmp___2~0#1;" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret14#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret13#1, processEnvironment__wrappee__methaneQuery_~tmp~2#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~2#1;" "assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret25#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~5#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~6#1;havoc isHighWaterLevel_~tmp~5#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;" "assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~2#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1;" "isHighWaterLevel_#t~ret25#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~5#1 := isHighWaterLevel_#t~ret25#1;havoc isHighWaterLevel_#t~ret25#1;" "assume 0 != isHighWaterLevel_~tmp~5#1;isHighWaterLevel_~tmp___0~1#1 := 0;" "isHighWaterLevel_~retValue_acc~6#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1;" "processEnvironment__wrappee__methaneQuery_#t~ret13#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret25#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~5#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__methaneQuery_~tmp~2#1 := processEnvironment__wrappee__methaneQuery_#t~ret13#1;havoc processEnvironment__wrappee__methaneQuery_#t~ret13#1;" "assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~2#1);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment__wrappee__methaneQuery_#t~ret13#1, processEnvironment__wrappee__methaneQuery_~tmp~2#1;assume { :end_inline_processEnvironment__wrappee__methaneQuery } true;" "havoc processEnvironment_#t~ret14#1, processEnvironment_~tmp~3#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1;" "__utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1;" "assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1;" "havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2024-12-02 08:43:48,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:43:48,823 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2024-12-02 08:43:48,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 08:43:48,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546727889] [2024-12-02 08:43:48,824 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:43:48,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:43:48,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:43:48,831 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 08:43:48,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:43:48,838 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 08:43:48,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:43:48,838 INFO L85 PathProgramCache]: Analyzing trace with hash 333618339, now seen corresponding path program 1 times [2024-12-02 08:43:48,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 08:43:48,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423413859] [2024-12-02 08:43:48,839 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:43:48,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:43:48,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:43:48,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-12-02 08:43:48,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423413859] [2024-12-02 08:43:48,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423413859] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:43:48,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1055619129] [2024-12-02 08:43:48,899 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:43:48,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:43:48,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bca12961-541c-4868-a02d-bfbce18729ad/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:43:48,901 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bca12961-541c-4868-a02d-bfbce18729ad/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:43:48,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bca12961-541c-4868-a02d-bfbce18729ad/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 08:43:48,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:43:48,946 INFO L256 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 08:43:48,947 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:43:48,956 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:43:48,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1055619129] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:43:48,964 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 08:43:48,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 4 [2024-12-02 08:43:48,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477543124] [2024-12-02 08:43:48,964 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 08:43:48,964 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-12-02 08:43:48,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-12-02 08:43:48,965 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:43:48,965 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:43:48,965 INFO L87 Difference]: Start difference. First operand 236 states and 301 transitions. cyclomatic complexity: 67 Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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 08:43:49,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:43:49,045 INFO L93 Difference]: Finished difference Result 248 states and 313 transitions. [2024-12-02 08:43:49,045 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 248 states and 313 transitions. [2024-12-02 08:43:49,047 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 170 [2024-12-02 08:43:49,048 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 248 states to 248 states and 313 transitions. [2024-12-02 08:43:49,048 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 248 [2024-12-02 08:43:49,049 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 248 [2024-12-02 08:43:49,049 INFO L73 IsDeterministic]: Start isDeterministic. Operand 248 states and 313 transitions. [2024-12-02 08:43:49,050 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-12-02 08:43:49,050 INFO L218 hiAutomatonCegarLoop]: Abstraction has 248 states and 313 transitions. [2024-12-02 08:43:49,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states and 313 transitions. [2024-12-02 08:43:49,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 248. [2024-12-02 08:43:49,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 248 states have (on average 1.2620967741935485) internal successors, (313), 247 states have internal predecessors, (313), 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 08:43:49,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 313 transitions. [2024-12-02 08:43:49,059 INFO L240 hiAutomatonCegarLoop]: Abstraction has 248 states and 313 transitions. [2024-12-02 08:43:49,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:43:49,061 INFO L425 stractBuchiCegarLoop]: Abstraction has 248 states and 313 transitions. [2024-12-02 08:43:49,061 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-12-02 08:43:49,061 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 248 states and 313 transitions. [2024-12-02 08:43:49,062 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 170 [2024-12-02 08:43:49,062 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 08:43:49,062 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 08:43:49,063 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:43:49,063 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] [2024-12-02 08:43:49,063 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;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret12#1, main_~retValue_acc~3#1, main_~tmp~1#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~1#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~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1;" "main_#t~ret12#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret12#1;havoc main_#t~ret12#1;" "assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet26#1, test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~2#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-12-02 08:43:49,063 INFO L749 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet26#1;test_~tmp~6#1 := test_#t~nondet26#1;havoc test_#t~nondet26#1;" "assume !(0 != test_~tmp~6#1);" "havoc test_#t~nondet27#1;test_~tmp___0~2#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1;" "assume !(0 != test_~tmp___0~2#1);" "havoc test_#t~nondet28#1;test_~tmp___2~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1;" "assume 0 != test_~tmp___2~0#1;" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret14#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret13#1, processEnvironment__wrappee__methaneQuery_~tmp~2#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~2#1;" "assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret25#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~5#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~6#1;havoc isHighWaterLevel_~tmp~5#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;" "assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~2#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1;" "isHighWaterLevel_#t~ret25#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~5#1 := isHighWaterLevel_#t~ret25#1;havoc isHighWaterLevel_#t~ret25#1;" "assume !(0 != isHighWaterLevel_~tmp~5#1);isHighWaterLevel_~tmp___0~1#1 := 1;" "isHighWaterLevel_~retValue_acc~6#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1;" "processEnvironment__wrappee__methaneQuery_#t~ret13#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret25#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~5#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__methaneQuery_~tmp~2#1 := processEnvironment__wrappee__methaneQuery_#t~ret13#1;havoc processEnvironment__wrappee__methaneQuery_#t~ret13#1;" "assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~2#1);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment__wrappee__methaneQuery_#t~ret13#1, processEnvironment__wrappee__methaneQuery_~tmp~2#1;assume { :end_inline_processEnvironment__wrappee__methaneQuery } true;" "havoc processEnvironment_#t~ret14#1, processEnvironment_~tmp~3#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1;" "__utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1;" "assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1;" "havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2024-12-02 08:43:49,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:43:49,063 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2024-12-02 08:43:49,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 08:43:49,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042176467] [2024-12-02 08:43:49,064 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:43:49,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:43:49,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:43:49,070 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 08:43:49,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:43:49,076 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 08:43:49,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:43:49,077 INFO L85 PathProgramCache]: Analyzing trace with hash 591783777, now seen corresponding path program 1 times [2024-12-02 08:43:49,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 08:43:49,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788917188] [2024-12-02 08:43:49,077 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:43:49,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:43:49,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:43:49,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-12-02 08:43:49,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788917188] [2024-12-02 08:43:49,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788917188] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:43:49,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [323132177] [2024-12-02 08:43:49,130 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:43:49,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:43:49,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bca12961-541c-4868-a02d-bfbce18729ad/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:43:49,134 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bca12961-541c-4868-a02d-bfbce18729ad/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:43:49,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bca12961-541c-4868-a02d-bfbce18729ad/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 08:43:49,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:43:49,181 INFO L256 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 08:43:49,186 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:43:49,199 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:43:49,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [323132177] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:43:49,221 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 08:43:49,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 5 [2024-12-02 08:43:49,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462288633] [2024-12-02 08:43:49,222 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 08:43:49,222 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-12-02 08:43:49,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-12-02 08:43:49,222 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:43:49,222 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:43:49,223 INFO L87 Difference]: Start difference. First operand 248 states and 313 transitions. cyclomatic complexity: 67 Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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 08:43:49,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:43:49,336 INFO L93 Difference]: Finished difference Result 266 states and 331 transitions. [2024-12-02 08:43:49,336 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 266 states and 331 transitions. [2024-12-02 08:43:49,338 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 182 [2024-12-02 08:43:49,340 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 266 states to 266 states and 331 transitions. [2024-12-02 08:43:49,340 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 266 [2024-12-02 08:43:49,340 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 266 [2024-12-02 08:43:49,341 INFO L73 IsDeterministic]: Start isDeterministic. Operand 266 states and 331 transitions. [2024-12-02 08:43:49,341 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-12-02 08:43:49,341 INFO L218 hiAutomatonCegarLoop]: Abstraction has 266 states and 331 transitions. [2024-12-02 08:43:49,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states and 331 transitions. [2024-12-02 08:43:49,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2024-12-02 08:43:49,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 266 states have (on average 1.244360902255639) internal successors, (331), 265 states have internal predecessors, (331), 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 08:43:49,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 331 transitions. [2024-12-02 08:43:49,349 INFO L240 hiAutomatonCegarLoop]: Abstraction has 266 states and 331 transitions. [2024-12-02 08:43:49,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:43:49,352 INFO L425 stractBuchiCegarLoop]: Abstraction has 266 states and 331 transitions. [2024-12-02 08:43:49,352 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-12-02 08:43:49,352 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 266 states and 331 transitions. [2024-12-02 08:43:49,354 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 182 [2024-12-02 08:43:49,354 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 08:43:49,354 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 08:43:49,355 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:43:49,355 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] [2024-12-02 08:43:49,355 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;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret12#1, main_~retValue_acc~3#1, main_~tmp~1#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~1#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~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1;" "main_#t~ret12#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret12#1;havoc main_#t~ret12#1;" "assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet26#1, test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~2#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-12-02 08:43:49,355 INFO L749 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet26#1;test_~tmp~6#1 := test_#t~nondet26#1;havoc test_#t~nondet26#1;" "assume !(0 != test_~tmp~6#1);" "havoc test_#t~nondet27#1;test_~tmp___0~2#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1;" "assume !(0 != test_~tmp___0~2#1);" "havoc test_#t~nondet28#1;test_~tmp___2~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1;" "assume 0 != test_~tmp___2~0#1;" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret14#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret13#1, processEnvironment__wrappee__methaneQuery_~tmp~2#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~2#1;" "assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret25#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~5#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~6#1;havoc isHighWaterLevel_~tmp~5#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~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~ret25#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~5#1 := isHighWaterLevel_#t~ret25#1;havoc isHighWaterLevel_#t~ret25#1;" "assume 0 != isHighWaterLevel_~tmp~5#1;isHighWaterLevel_~tmp___0~1#1 := 0;" "isHighWaterLevel_~retValue_acc~6#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1;" "processEnvironment__wrappee__methaneQuery_#t~ret13#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret25#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~5#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__methaneQuery_~tmp~2#1 := processEnvironment__wrappee__methaneQuery_#t~ret13#1;havoc processEnvironment__wrappee__methaneQuery_#t~ret13#1;" "assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~2#1);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment__wrappee__methaneQuery_#t~ret13#1, processEnvironment__wrappee__methaneQuery_~tmp~2#1;assume { :end_inline_processEnvironment__wrappee__methaneQuery } true;" "havoc processEnvironment_#t~ret14#1, processEnvironment_~tmp~3#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1;" "__utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1;" "assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1;" "havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2024-12-02 08:43:49,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:43:49,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 5 times [2024-12-02 08:43:49,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 08:43:49,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536662030] [2024-12-02 08:43:49,356 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:43:49,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:43:49,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:43:49,362 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 08:43:49,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:43:49,367 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 08:43:49,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:43:49,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1344735589, now seen corresponding path program 1 times [2024-12-02 08:43:49,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 08:43:49,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385791771] [2024-12-02 08:43:49,368 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:43:49,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:43:49,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:43:49,378 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 08:43:49,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:43:49,383 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 08:43:49,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:43:49,384 INFO L85 PathProgramCache]: Analyzing trace with hash 1218294313, now seen corresponding path program 1 times [2024-12-02 08:43:49,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 08:43:49,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118471267] [2024-12-02 08:43:49,384 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:43:49,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:43:49,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:43:49,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-12-02 08:43:49,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118471267] [2024-12-02 08:43:49,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118471267] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:43:49,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1940493867] [2024-12-02 08:43:49,479 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:43:49,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:43:49,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bca12961-541c-4868-a02d-bfbce18729ad/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:43:49,484 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bca12961-541c-4868-a02d-bfbce18729ad/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:43:49,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bca12961-541c-4868-a02d-bfbce18729ad/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 08:43:49,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:43:49,546 INFO L256 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-02 08:43:49,548 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:43:49,599 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:43:49,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1940493867] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:43:49,645 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 08:43:49,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 4 [2024-12-02 08:43:49,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956083053] [2024-12-02 08:43:49,646 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 08:43:49,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-12-02 08:43:49,743 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:43:49,743 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:43:49,744 INFO L87 Difference]: Start difference. First operand 266 states and 331 transitions. cyclomatic complexity: 67 Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:43:49,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:43:49,844 INFO L93 Difference]: Finished difference Result 525 states and 647 transitions. [2024-12-02 08:43:49,844 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 525 states and 647 transitions. [2024-12-02 08:43:49,848 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 364 [2024-12-02 08:43:49,851 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 525 states to 525 states and 647 transitions. [2024-12-02 08:43:49,851 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 525 [2024-12-02 08:43:49,851 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 525 [2024-12-02 08:43:49,851 INFO L73 IsDeterministic]: Start isDeterministic. Operand 525 states and 647 transitions. [2024-12-02 08:43:49,852 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-12-02 08:43:49,852 INFO L218 hiAutomatonCegarLoop]: Abstraction has 525 states and 647 transitions. [2024-12-02 08:43:49,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states and 647 transitions. [2024-12-02 08:43:49,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 525. [2024-12-02 08:43:49,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 525 states, 525 states have (on average 1.2323809523809524) internal successors, (647), 524 states have internal predecessors, (647), 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 08:43:49,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 647 transitions. [2024-12-02 08:43:49,864 INFO L240 hiAutomatonCegarLoop]: Abstraction has 525 states and 647 transitions. [2024-12-02 08:43:49,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:43:49,865 INFO L425 stractBuchiCegarLoop]: Abstraction has 525 states and 647 transitions. [2024-12-02 08:43:49,865 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-12-02 08:43:49,865 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 525 states and 647 transitions. [2024-12-02 08:43:49,868 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 364 [2024-12-02 08:43:49,868 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 08:43:49,868 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 08:43:49,869 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:43:49,869 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 08:43:49,869 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;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret12#1, main_~retValue_acc~3#1, main_~tmp~1#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~1#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~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1;" "main_#t~ret12#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret12#1;havoc main_#t~ret12#1;" "assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet26#1, test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~2#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-12-02 08:43:49,869 INFO L749 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet26#1;test_~tmp~6#1 := test_#t~nondet26#1;havoc test_#t~nondet26#1;" "assume !(0 != test_~tmp~6#1);" "havoc test_#t~nondet27#1;test_~tmp___0~2#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1;" "assume !(0 != test_~tmp___0~2#1);" "havoc test_#t~nondet28#1;test_~tmp___2~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1;" "assume 0 != test_~tmp___2~0#1;" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret14#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret13#1, processEnvironment__wrappee__methaneQuery_~tmp~2#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~2#1;" "assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret25#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~5#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~6#1;havoc isHighWaterLevel_~tmp~5#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~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~ret25#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~5#1 := isHighWaterLevel_#t~ret25#1;havoc isHighWaterLevel_#t~ret25#1;" "assume 0 != isHighWaterLevel_~tmp~5#1;isHighWaterLevel_~tmp___0~1#1 := 0;" "isHighWaterLevel_~retValue_acc~6#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1;" "processEnvironment__wrappee__methaneQuery_#t~ret13#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret25#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~5#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__methaneQuery_~tmp~2#1 := processEnvironment__wrappee__methaneQuery_#t~ret13#1;havoc processEnvironment__wrappee__methaneQuery_#t~ret13#1;" "assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~2#1);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment__wrappee__methaneQuery_#t~ret13#1, processEnvironment__wrappee__methaneQuery_~tmp~2#1;assume { :end_inline_processEnvironment__wrappee__methaneQuery } true;" "havoc processEnvironment_#t~ret14#1, processEnvironment_~tmp~3#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1;" "__utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1;" "assume !(0 != __utac_acc__Specification3_spec__1_~tmp~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__Specification3_spec__1_#t~ret5#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~0#1 := __utac_acc__Specification3_spec__1_#t~ret5#1;havoc __utac_acc__Specification3_spec__1_#t~ret5#1;" "assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0#1);" "havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2024-12-02 08:43:49,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:43:49,870 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 6 times [2024-12-02 08:43:49,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 08:43:49,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800862183] [2024-12-02 08:43:49,870 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:43:49,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:43:49,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:43:49,876 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 08:43:49,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:43:49,882 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 08:43:49,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:43:49,883 INFO L85 PathProgramCache]: Analyzing trace with hash -493060614, now seen corresponding path program 1 times [2024-12-02 08:43:49,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 08:43:49,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427491282] [2024-12-02 08:43:49,883 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:43:49,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:43:49,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:43:49,889 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 08:43:49,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:43:49,895 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 08:43:49,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:43:49,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1744042562, now seen corresponding path program 1 times [2024-12-02 08:43:49,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 08:43:49,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597145557] [2024-12-02 08:43:49,895 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:43:49,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:43:49,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:43:49,905 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 08:43:49,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:43:49,916 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 08:43:50,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:43:50,692 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 08:43:50,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:43:50,732 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 02.12 08:43:50 BoogieIcfgContainer [2024-12-02 08:43:50,732 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-12-02 08:43:50,733 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 08:43:50,733 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 08:43:50,733 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 08:43:50,733 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:43:47" (3/4) ... [2024-12-02 08:43:50,735 INFO L143 WitnessPrinter]: Generating witness for non-termination counterexample [2024-12-02 08:43:50,772 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bca12961-541c-4868-a02d-bfbce18729ad/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 08:43:50,772 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 08:43:50,773 INFO L158 Benchmark]: Toolchain (without parser) took 3882.41ms. Allocated memory is still 117.4MB. Free memory was 91.9MB in the beginning and 33.8MB in the end (delta: 58.1MB). Peak memory consumption was 61.1MB. Max. memory is 16.1GB. [2024-12-02 08:43:50,773 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 117.4MB. Free memory is still 72.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 08:43:50,773 INFO L158 Benchmark]: CACSL2BoogieTranslator took 314.35ms. Allocated memory is still 117.4MB. Free memory was 91.7MB in the beginning and 73.4MB in the end (delta: 18.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 08:43:50,773 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.64ms. Allocated memory is still 117.4MB. Free memory was 73.4MB in the beginning and 70.3MB in the end (delta: 3.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 08:43:50,774 INFO L158 Benchmark]: Boogie Preprocessor took 49.43ms. Allocated memory is still 117.4MB. Free memory was 70.3MB in the beginning and 67.0MB in the end (delta: 3.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 08:43:50,774 INFO L158 Benchmark]: RCFGBuilder took 511.58ms. Allocated memory is still 117.4MB. Free memory was 67.0MB in the beginning and 38.8MB in the end (delta: 28.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-12-02 08:43:50,774 INFO L158 Benchmark]: BuchiAutomizer took 2912.98ms. Allocated memory is still 117.4MB. Free memory was 38.6MB in the beginning and 36.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.4MB. Max. memory is 16.1GB. [2024-12-02 08:43:50,775 INFO L158 Benchmark]: Witness Printer took 39.31ms. Allocated memory is still 117.4MB. Free memory was 36.7MB in the beginning and 33.8MB in the end (delta: 2.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 08:43:50,776 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 117.4MB. Free memory is still 72.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 314.35ms. Allocated memory is still 117.4MB. Free memory was 91.7MB in the beginning and 73.4MB in the end (delta: 18.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.64ms. Allocated memory is still 117.4MB. Free memory was 73.4MB in the beginning and 70.3MB in the end (delta: 3.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.43ms. Allocated memory is still 117.4MB. Free memory was 70.3MB in the beginning and 67.0MB in the end (delta: 3.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 511.58ms. Allocated memory is still 117.4MB. Free memory was 67.0MB in the beginning and 38.8MB in the end (delta: 28.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 2912.98ms. Allocated memory is still 117.4MB. Free memory was 38.6MB in the beginning and 36.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.4MB. Max. memory is 16.1GB. * Witness Printer took 39.31ms. Allocated memory is still 117.4MB. Free memory was 36.7MB in the beginning and 33.8MB in the end (delta: 2.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [49] - GenericResultAtLocation [Line: 87]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [87] - GenericResultAtLocation [Line: 186]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [186] - GenericResultAtLocation [Line: 288]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [288] - GenericResultAtLocation [Line: 485]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [485] - GenericResultAtLocation [Line: 550]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [550] - GenericResultAtLocation [Line: 585]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [585] - GenericResultAtLocation [Line: 594]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [594] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (5 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.5 modules have a trivial ranking function, the largest among these consists of 7 locations. The remainder module has 525 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.8s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 2.1s. Construction of modules took 0.2s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 5. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 5 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, 812 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 812 mSDsluCounter, 3169 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2099 mSDsCounter, 76 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 355 IncrementalHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 76 mSolverCounterUnsat, 1070 mSDtfsCounter, 355 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 498]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L93] int waterLevel = 1; [L94] int methaneLevelCritical = 0; [L187] int cleanupTimeShifts = 4; [L291] int pumpRunning = 0; [L292] int systemActive = 1; [L764] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L266] int retValue_acc ; [L267] int tmp ; [L271] FCALL select_helpers() [L272] FCALL select_features() [L273] CALL, EXPR valid_product() [L577] int retValue_acc ; [L580] retValue_acc = 1 [L581] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L273] RET, EXPR valid_product() [L273] tmp = valid_product() [L275] COND TRUE \read(tmp) [L277] FCALL setup() [L278] CALL runTest() [L257] CALL test() [L487] int splverifierCounter ; [L488] int tmp ; [L489] int tmp___0 ; [L490] int tmp___1 ; [L491] int tmp___2 ; [L494] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L498] COND TRUE splverifierCounter < 4 [L504] tmp = __VERIFIER_nondet_int() [L506] COND FALSE !(\read(tmp)) [L514] tmp___0 = __VERIFIER_nondet_int() [L516] COND FALSE !(\read(tmp___0)) [L524] tmp___2 = __VERIFIER_nondet_int() [L526] COND TRUE \read(tmp___2) [L539] CALL timeShift() [L298] COND FALSE !(\read(pumpRunning)) [L305] COND TRUE \read(systemActive) [L307] CALL processEnvironment() [L353] int tmp ; [L356] COND FALSE !(\read(pumpRunning)) [L371] CALL processEnvironment__wrappee__methaneQuery() [L327] int tmp ; [L330] COND TRUE ! pumpRunning [L332] CALL, EXPR isHighWaterLevel() [L467] int retValue_acc ; [L468] int tmp ; [L469] int tmp___0 ; [L473] CALL, EXPR isHighWaterSensorDry() [L173] int retValue_acc ; [L176] COND TRUE waterLevel < 2 [L177] retValue_acc = 1 [L178] return (retValue_acc); [L473] RET, EXPR isHighWaterSensorDry() [L473] tmp = isHighWaterSensorDry() [L475] COND TRUE \read(tmp) [L476] tmp___0 = 0 [L480] retValue_acc = tmp___0 [L481] return (retValue_acc); [L332] RET, EXPR isHighWaterLevel() [L332] tmp = isHighWaterLevel() [L334] COND FALSE !(\read(tmp)) [L340] FCALL processEnvironment__wrappee__base() [L371] RET processEnvironment__wrappee__methaneQuery() [L307] RET processEnvironment() [L313] CALL __utac_acc__Specification3_spec__1() [L55] int tmp ; [L56] int tmp___0 ; [L57] int tmp___1 ; [L61] CALL, EXPR isMethaneLevelCritical() [L132] int retValue_acc ; [L135] retValue_acc = methaneLevelCritical [L136] return (retValue_acc); [L61] RET, EXPR isMethaneLevelCritical() [L61] tmp = isMethaneLevelCritical() [L63] COND FALSE !(\read(tmp)) [L67] CALL, EXPR getWaterLevel() [L164] int retValue_acc ; [L167] retValue_acc = waterLevel [L168] return (retValue_acc); [L67] RET, EXPR getWaterLevel() [L67] tmp___0 = getWaterLevel() [L69] COND FALSE !(tmp___0 == 2) [L313] RET __utac_acc__Specification3_spec__1() [L539] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 498]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L93] int waterLevel = 1; [L94] int methaneLevelCritical = 0; [L187] int cleanupTimeShifts = 4; [L291] int pumpRunning = 0; [L292] int systemActive = 1; [L764] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L266] int retValue_acc ; [L267] int tmp ; [L271] FCALL select_helpers() [L272] FCALL select_features() [L273] CALL, EXPR valid_product() [L577] int retValue_acc ; [L580] retValue_acc = 1 [L581] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L273] RET, EXPR valid_product() [L273] tmp = valid_product() [L275] COND TRUE \read(tmp) [L277] FCALL setup() [L278] CALL runTest() [L257] CALL test() [L487] int splverifierCounter ; [L488] int tmp ; [L489] int tmp___0 ; [L490] int tmp___1 ; [L491] int tmp___2 ; [L494] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L498] COND TRUE splverifierCounter < 4 [L504] tmp = __VERIFIER_nondet_int() [L506] COND FALSE !(\read(tmp)) [L514] tmp___0 = __VERIFIER_nondet_int() [L516] COND FALSE !(\read(tmp___0)) [L524] tmp___2 = __VERIFIER_nondet_int() [L526] COND TRUE \read(tmp___2) [L539] CALL timeShift() [L298] COND FALSE !(\read(pumpRunning)) [L305] COND TRUE \read(systemActive) [L307] CALL processEnvironment() [L353] int tmp ; [L356] COND FALSE !(\read(pumpRunning)) [L371] CALL processEnvironment__wrappee__methaneQuery() [L327] int tmp ; [L330] COND TRUE ! pumpRunning [L332] CALL, EXPR isHighWaterLevel() [L467] int retValue_acc ; [L468] int tmp ; [L469] int tmp___0 ; [L473] CALL, EXPR isHighWaterSensorDry() [L173] int retValue_acc ; [L176] COND TRUE waterLevel < 2 [L177] retValue_acc = 1 [L178] return (retValue_acc); [L473] RET, EXPR isHighWaterSensorDry() [L473] tmp = isHighWaterSensorDry() [L475] COND TRUE \read(tmp) [L476] tmp___0 = 0 [L480] retValue_acc = tmp___0 [L481] return (retValue_acc); [L332] RET, EXPR isHighWaterLevel() [L332] tmp = isHighWaterLevel() [L334] COND FALSE !(\read(tmp)) [L340] FCALL processEnvironment__wrappee__base() [L371] RET processEnvironment__wrappee__methaneQuery() [L307] RET processEnvironment() [L313] CALL __utac_acc__Specification3_spec__1() [L55] int tmp ; [L56] int tmp___0 ; [L57] int tmp___1 ; [L61] CALL, EXPR isMethaneLevelCritical() [L132] int retValue_acc ; [L135] retValue_acc = methaneLevelCritical [L136] return (retValue_acc); [L61] RET, EXPR isMethaneLevelCritical() [L61] tmp = isMethaneLevelCritical() [L63] COND FALSE !(\read(tmp)) [L67] CALL, EXPR getWaterLevel() [L164] int retValue_acc ; [L167] retValue_acc = waterLevel [L168] return (retValue_acc); [L67] RET, EXPR getWaterLevel() [L67] tmp___0 = getWaterLevel() [L69] COND FALSE !(tmp___0 == 2) [L313] RET __utac_acc__Specification3_spec__1() [L539] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-12-02 08:43:50,795 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bca12961-541c-4868-a02d-bfbce18729ad/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 08:43:50,991 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bca12961-541c-4868-a02d-bfbce18729ad/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 08:43:51,191 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bca12961-541c-4868-a02d-bfbce18729ad/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 08:43:51,392 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bca12961-541c-4868-a02d-bfbce18729ad/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 08:43:51,592 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bca12961-541c-4868-a02d-bfbce18729ad/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 08:43:51,792 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bca12961-541c-4868-a02d-bfbce18729ad/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)