./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product50.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_06c4cd8f-dd71-41d1-84a0-b6ef4ef91886/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c4cd8f-dd71-41d1-84a0-b6ef4ef91886/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c4cd8f-dd71-41d1-84a0-b6ef4ef91886/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c4cd8f-dd71-41d1-84a0-b6ef4ef91886/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product50.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c4cd8f-dd71-41d1-84a0-b6ef4ef91886/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c4cd8f-dd71-41d1-84a0-b6ef4ef91886/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9cfe95aaca007f6467395901a9efc89e5ad27f0fc32ae7ae8a1fe4e27a1f35c1 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 23:21:27,220 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 23:21:27,338 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c4cd8f-dd71-41d1-84a0-b6ef4ef91886/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-27 23:21:27,349 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 23:21:27,350 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 23:21:27,397 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 23:21:27,398 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 23:21:27,398 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 23:21:27,399 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 23:21:27,400 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 23:21:27,401 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 23:21:27,401 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 23:21:27,401 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 23:21:27,401 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-27 23:21:27,401 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-27 23:21:27,402 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-27 23:21:27,402 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-27 23:21:27,402 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-27 23:21:27,403 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-27 23:21:27,403 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 23:21:27,403 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-27 23:21:27,403 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 23:21:27,403 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 23:21:27,403 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 23:21:27,403 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 23:21:27,403 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-27 23:21:27,404 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-27 23:21:27,404 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-27 23:21:27,404 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 23:21:27,404 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 23:21:27,404 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 23:21:27,405 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-27 23:21:27,405 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 23:21:27,405 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 23:21:27,405 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 23:21:27,405 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:21:27,405 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 23:21:27,405 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-11-27 23:21:27,406 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-27 23:21:27,406 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_06c4cd8f-dd71-41d1-84a0-b6ef4ef91886/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9cfe95aaca007f6467395901a9efc89e5ad27f0fc32ae7ae8a1fe4e27a1f35c1 [2024-11-27 23:21:27,759 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 23:21:27,777 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 23:21:27,780 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 23:21:27,782 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 23:21:27,782 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 23:21:27,785 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c4cd8f-dd71-41d1-84a0-b6ef4ef91886/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/product-lines/minepump_spec5_product50.cil.c [2024-11-27 23:21:31,205 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c4cd8f-dd71-41d1-84a0-b6ef4ef91886/bin/uautomizer-verify-aQ6SnzHsRB/data/36f4b89ce/2254db1027c54353acc0aa6f41aa4bdd/FLAG0a29ddeea [2024-11-27 23:21:31,606 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 23:21:31,606 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c4cd8f-dd71-41d1-84a0-b6ef4ef91886/sv-benchmarks/c/product-lines/minepump_spec5_product50.cil.c [2024-11-27 23:21:31,625 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c4cd8f-dd71-41d1-84a0-b6ef4ef91886/bin/uautomizer-verify-aQ6SnzHsRB/data/36f4b89ce/2254db1027c54353acc0aa6f41aa4bdd/FLAG0a29ddeea [2024-11-27 23:21:31,644 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c4cd8f-dd71-41d1-84a0-b6ef4ef91886/bin/uautomizer-verify-aQ6SnzHsRB/data/36f4b89ce/2254db1027c54353acc0aa6f41aa4bdd [2024-11-27 23:21:31,646 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 23:21:31,648 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 23:21:31,649 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 23:21:31,649 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 23:21:31,654 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 23:21:31,655 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:21:31" (1/1) ... [2024-11-27 23:21:31,656 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18eab6f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:21:31, skipping insertion in model container [2024-11-27 23:21:31,656 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:21:31" (1/1) ... [2024-11-27 23:21:31,709 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 23:21:32,161 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:21:32,176 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 23:21:32,187 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] [2024-11-27 23:21:32,189 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [58] [2024-11-27 23:21:32,189 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [279] [2024-11-27 23:21:32,189 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [349] [2024-11-27 23:21:32,189 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [453] [2024-11-27 23:21:32,189 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [819] [2024-11-27 23:21:32,190 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [868] [2024-11-27 23:21:32,190 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [906] [2024-11-27 23:21:32,283 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:21:32,319 INFO L204 MainTranslator]: Completed translation [2024-11-27 23:21:32,320 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:21:32 WrapperNode [2024-11-27 23:21:32,320 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 23:21:32,321 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 23:21:32,321 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 23:21:32,321 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 23:21:32,339 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:21:32" (1/1) ... [2024-11-27 23:21:32,359 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:21:32" (1/1) ... [2024-11-27 23:21:32,402 INFO L138 Inliner]: procedures = 58, calls = 103, calls flagged for inlining = 56, calls inlined = 88, statements flattened = 590 [2024-11-27 23:21:32,403 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 23:21:32,403 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 23:21:32,405 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 23:21:32,405 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 23:21:32,418 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:21:32" (1/1) ... [2024-11-27 23:21:32,419 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:21:32" (1/1) ... [2024-11-27 23:21:32,422 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:21:32" (1/1) ... [2024-11-27 23:21:32,439 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-27 23:21:32,440 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:21:32" (1/1) ... [2024-11-27 23:21:32,440 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:21:32" (1/1) ... [2024-11-27 23:21:32,452 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:21:32" (1/1) ... [2024-11-27 23:21:32,453 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:21:32" (1/1) ... [2024-11-27 23:21:32,461 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:21:32" (1/1) ... [2024-11-27 23:21:32,463 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:21:32" (1/1) ... [2024-11-27 23:21:32,465 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:21:32" (1/1) ... [2024-11-27 23:21:32,473 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 23:21:32,474 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 23:21:32,474 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 23:21:32,474 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 23:21:32,475 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:21:32" (1/1) ... [2024-11-27 23:21:32,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 23:21:32,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c4cd8f-dd71-41d1-84a0-b6ef4ef91886/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:21:32,524 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c4cd8f-dd71-41d1-84a0-b6ef4ef91886/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 23:21:32,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c4cd8f-dd71-41d1-84a0-b6ef4ef91886/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-27 23:21:32,564 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 23:21:32,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 23:21:32,565 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 23:21:32,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 23:21:32,670 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 23:21:32,673 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 23:21:33,273 INFO L? ?]: Removed 136 outVars from TransFormulas that were not future-live. [2024-11-27 23:21:33,273 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 23:21:33,291 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 23:21:33,291 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-27 23:21:33,292 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:21:33 BoogieIcfgContainer [2024-11-27 23:21:33,292 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 23:21:33,296 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-27 23:21:33,296 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-27 23:21:33,303 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-27 23:21:33,305 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-27 23:21:33,305 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.11 11:21:31" (1/3) ... [2024-11-27 23:21:33,307 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@57643975 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.11 11:21:33, skipping insertion in model container [2024-11-27 23:21:33,307 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-27 23:21:33,307 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:21:32" (2/3) ... [2024-11-27 23:21:33,308 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@57643975 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.11 11:21:33, skipping insertion in model container [2024-11-27 23:21:33,308 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-27 23:21:33,308 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:21:33" (3/3) ... [2024-11-27 23:21:33,311 INFO L363 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product50.cil.c [2024-11-27 23:21:33,371 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-27 23:21:33,371 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-27 23:21:33,371 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-27 23:21:33,372 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-27 23:21:33,372 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-27 23:21:33,372 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-27 23:21:33,372 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-27 23:21:33,372 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-27 23:21:33,379 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 174 states, 173 states have (on average 1.369942196531792) internal successors, (237), 173 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:21:33,419 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 111 [2024-11-27 23:21:33,419 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 23:21:33,419 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 23:21:33,428 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:21:33,428 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:21:33,429 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-27 23:21:33,432 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 174 states, 173 states have (on average 1.369942196531792) internal successors, (237), 173 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:21:33,444 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 111 [2024-11-27 23:21:33,447 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 23:21:33,447 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 23:21:33,448 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:21:33,449 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:21:33,456 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~9#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~12#1;havoc valid_product_~retValue_acc~12#1;valid_product_~retValue_acc~12#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~12#1;" "main_#t~ret53#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~12#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret53#1;havoc main_#t~ret53#1;" "assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0;" "assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_#t~nondet20#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-11-27 23:21:33,456 INFO L749 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet17#1;test_~tmp~4#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1;" "assume !(0 != test_~tmp~4#1);" "havoc test_#t~nondet18#1;test_~tmp___0~2#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1;" "assume !(0 != test_~tmp___0~2#1);" "havoc test_#t~nondet19#1;test_~tmp___2~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1;" "assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet20#1;test_~tmp___1~0#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1;" "assume 0 != test_~tmp___1~0#1;" "assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret49#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1;" "__utac_acc__Specification5_spec__2_#t~ret49#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret49#1;havoc __utac_acc__Specification5_spec__2_#t~ret49#1;" "havoc __utac_acc__Specification5_spec__2_#t~ret49#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true;" "assume !(0 != ~pumpRunning~0);" "assume !(0 != ~systemActive~0);" "assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret50#1, __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_~tmp~8#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~8#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1;" "__utac_acc__Specification5_spec__3_#t~ret50#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~8#1 := __utac_acc__Specification5_spec__3_#t~ret50#1;havoc __utac_acc__Specification5_spec__3_#t~ret50#1;" "assume !(2 != __utac_acc__Specification5_spec__3_~tmp~8#1);" "havoc __utac_acc__Specification5_spec__3_#t~ret50#1, __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_~tmp~8#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true;" "assume { :end_inline_timeShift } true;" [2024-11-27 23:21:33,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:21:33,464 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2024-11-27 23:21:33,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 23:21:33,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353696559] [2024-11-27 23:21:33,475 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:21:33,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:21:33,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:21:33,600 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 23:21:33,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:21:33,657 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 23:21:33,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:21:33,661 INFO L85 PathProgramCache]: Analyzing trace with hash 606759416, now seen corresponding path program 1 times [2024-11-27 23:21:33,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 23:21:33,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936055031] [2024-11-27 23:21:33,661 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:21:33,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:21:33,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:21:33,687 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 23:21:33,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:21:33,708 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 23:21:33,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:21:33,709 INFO L85 PathProgramCache]: Analyzing trace with hash -732592991, now seen corresponding path program 1 times [2024-11-27 23:21:33,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 23:21:33,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746575274] [2024-11-27 23:21:33,710 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:21:33,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:21:33,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:21:34,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-27 23:21:34,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746575274] [2024-11-27 23:21:34,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746575274] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:21:34,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1033754752] [2024-11-27 23:21:34,070 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:21:34,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:21:34,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c4cd8f-dd71-41d1-84a0-b6ef4ef91886/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:21:34,073 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c4cd8f-dd71-41d1-84a0-b6ef4ef91886/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:21:34,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c4cd8f-dd71-41d1-84a0-b6ef4ef91886/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 23:21:34,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:21:34,185 INFO L256 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-27 23:21:34,187 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:21:34,274 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:21:34,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1033754752] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:21:34,367 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:21:34,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 2, 2] total 6 [2024-11-27 23:21:34,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966956357] [2024-11-27 23:21:34,368 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:21:34,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-27 23:21:34,539 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 23:21:34,540 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:21:34,545 INFO L87 Difference]: Start difference. First operand has 174 states, 173 states have (on average 1.369942196531792) internal successors, (237), 173 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:21:34,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:21:34,704 INFO L93 Difference]: Finished difference Result 168 states and 220 transitions. [2024-11-27 23:21:34,706 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 168 states and 220 transitions. [2024-11-27 23:21:34,714 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 105 [2024-11-27 23:21:34,724 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 168 states to 158 states and 210 transitions. [2024-11-27 23:21:34,725 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 158 [2024-11-27 23:21:34,726 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 158 [2024-11-27 23:21:34,727 INFO L73 IsDeterministic]: Start isDeterministic. Operand 158 states and 210 transitions. [2024-11-27 23:21:34,728 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-27 23:21:34,728 INFO L218 hiAutomatonCegarLoop]: Abstraction has 158 states and 210 transitions. [2024-11-27 23:21:34,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states and 210 transitions. [2024-11-27 23:21:34,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2024-11-27 23:21:34,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 158 states have (on average 1.3291139240506329) internal successors, (210), 157 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:21:34,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 210 transitions. [2024-11-27 23:21:34,770 INFO L240 hiAutomatonCegarLoop]: Abstraction has 158 states and 210 transitions. [2024-11-27 23:21:34,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:21:34,781 INFO L425 stractBuchiCegarLoop]: Abstraction has 158 states and 210 transitions. [2024-11-27 23:21:34,781 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-27 23:21:34,781 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 158 states and 210 transitions. [2024-11-27 23:21:34,784 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 105 [2024-11-27 23:21:34,787 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 23:21:34,787 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 23:21:34,787 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:21:34,787 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] [2024-11-27 23:21:34,788 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~9#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~12#1;havoc valid_product_~retValue_acc~12#1;valid_product_~retValue_acc~12#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~12#1;" "main_#t~ret53#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~12#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret53#1;havoc main_#t~ret53#1;" "assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0;" "assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_#t~nondet20#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-11-27 23:21:34,788 INFO L749 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet17#1;test_~tmp~4#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1;" "assume !(0 != test_~tmp~4#1);" "havoc test_#t~nondet18#1;test_~tmp___0~2#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1;" "assume !(0 != test_~tmp___0~2#1);" "havoc test_#t~nondet19#1;test_~tmp___2~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1;" "assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet20#1;test_~tmp___1~0#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1;" "assume 0 != test_~tmp___1~0#1;" "assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret49#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1;" "__utac_acc__Specification5_spec__2_#t~ret49#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret49#1;havoc __utac_acc__Specification5_spec__2_#t~ret49#1;" "havoc __utac_acc__Specification5_spec__2_#t~ret49#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1;" "assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true;" "havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~1#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret50#1, __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_~tmp~8#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~8#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1;" "__utac_acc__Specification5_spec__3_#t~ret50#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~8#1 := __utac_acc__Specification5_spec__3_#t~ret50#1;havoc __utac_acc__Specification5_spec__3_#t~ret50#1;" "assume !(2 != __utac_acc__Specification5_spec__3_~tmp~8#1);" "havoc __utac_acc__Specification5_spec__3_#t~ret50#1, __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_~tmp~8#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true;" "assume { :end_inline_timeShift } true;" [2024-11-27 23:21:34,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:21:34,789 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2024-11-27 23:21:34,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 23:21:34,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646215860] [2024-11-27 23:21:34,789 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:21:34,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:21:34,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:21:34,813 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 23:21:34,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:21:34,835 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 23:21:34,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:21:34,839 INFO L85 PathProgramCache]: Analyzing trace with hash -53053755, now seen corresponding path program 1 times [2024-11-27 23:21:34,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 23:21:34,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783044125] [2024-11-27 23:21:34,839 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:21:34,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:21:34,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:21:34,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-27 23:21:34,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783044125] [2024-11-27 23:21:34,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783044125] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:21:34,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1476862798] [2024-11-27 23:21:34,891 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:21:34,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:21:34,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c4cd8f-dd71-41d1-84a0-b6ef4ef91886/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:21:34,897 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c4cd8f-dd71-41d1-84a0-b6ef4ef91886/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:21:34,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c4cd8f-dd71-41d1-84a0-b6ef4ef91886/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 23:21:34,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:21:34,966 INFO L256 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 23:21:34,967 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:21:34,979 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:21:35,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1476862798] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:21:35,004 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:21:35,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-11-27 23:21:35,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658920275] [2024-11-27 23:21:35,004 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:21:35,005 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-27 23:21:35,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-27 23:21:35,008 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:21:35,008 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:21:35,008 INFO L87 Difference]: Start difference. First operand 158 states and 210 transitions. cyclomatic complexity: 54 Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:21:35,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:21:35,149 INFO L93 Difference]: Finished difference Result 221 states and 283 transitions. [2024-11-27 23:21:35,149 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 221 states and 283 transitions. [2024-11-27 23:21:35,156 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 152 [2024-11-27 23:21:35,159 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 221 states to 221 states and 283 transitions. [2024-11-27 23:21:35,159 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 221 [2024-11-27 23:21:35,159 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 221 [2024-11-27 23:21:35,159 INFO L73 IsDeterministic]: Start isDeterministic. Operand 221 states and 283 transitions. [2024-11-27 23:21:35,164 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-27 23:21:35,164 INFO L218 hiAutomatonCegarLoop]: Abstraction has 221 states and 283 transitions. [2024-11-27 23:21:35,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states and 283 transitions. [2024-11-27 23:21:35,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 221. [2024-11-27 23:21:35,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 221 states have (on average 1.2805429864253393) internal successors, (283), 220 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:21:35,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 283 transitions. [2024-11-27 23:21:35,179 INFO L240 hiAutomatonCegarLoop]: Abstraction has 221 states and 283 transitions. [2024-11-27 23:21:35,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:21:35,180 INFO L425 stractBuchiCegarLoop]: Abstraction has 221 states and 283 transitions. [2024-11-27 23:21:35,180 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-27 23:21:35,180 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 221 states and 283 transitions. [2024-11-27 23:21:35,183 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 152 [2024-11-27 23:21:35,186 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 23:21:35,186 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 23:21:35,187 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:21:35,187 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:21:35,188 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~9#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~12#1;havoc valid_product_~retValue_acc~12#1;valid_product_~retValue_acc~12#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~12#1;" "main_#t~ret53#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~12#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret53#1;havoc main_#t~ret53#1;" "assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0;" "assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_#t~nondet20#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-11-27 23:21:35,188 INFO L749 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet17#1;test_~tmp~4#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1;" "assume !(0 != test_~tmp~4#1);" "havoc test_#t~nondet18#1;test_~tmp___0~2#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1;" "assume !(0 != test_~tmp___0~2#1);" "havoc test_#t~nondet19#1;test_~tmp___2~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1;" "assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet20#1;test_~tmp___1~0#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1;" "assume 0 != test_~tmp___1~0#1;" "assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret49#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1;" "__utac_acc__Specification5_spec__2_#t~ret49#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret49#1;havoc __utac_acc__Specification5_spec__2_#t~ret49#1;" "havoc __utac_acc__Specification5_spec__2_#t~ret49#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1;" "assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret15#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~2#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;" "assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1;" "isHighWaterLevel_#t~ret15#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~2#1 := isHighWaterLevel_#t~ret15#1;havoc isHighWaterLevel_#t~ret15#1;" "assume 0 != isHighWaterLevel_~tmp~2#1;isHighWaterLevel_~tmp___0~0#1 := 0;" "isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1;" "processEnvironment__wrappee__highWaterSensor_#t~ret4#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret15#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret4#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1;" "assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true;" "havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~1#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret50#1, __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_~tmp~8#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~8#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1;" "__utac_acc__Specification5_spec__3_#t~ret50#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~8#1 := __utac_acc__Specification5_spec__3_#t~ret50#1;havoc __utac_acc__Specification5_spec__3_#t~ret50#1;" "assume !(2 != __utac_acc__Specification5_spec__3_~tmp~8#1);" "havoc __utac_acc__Specification5_spec__3_#t~ret50#1, __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_~tmp~8#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true;" "assume { :end_inline_timeShift } true;" [2024-11-27 23:21:35,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:21:35,188 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2024-11-27 23:21:35,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 23:21:35,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186601382] [2024-11-27 23:21:35,189 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:21:35,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:21:35,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:21:35,211 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 23:21:35,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:21:35,228 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 23:21:35,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:21:35,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1263156733, now seen corresponding path program 1 times [2024-11-27 23:21:35,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 23:21:35,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222913491] [2024-11-27 23:21:35,233 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:21:35,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:21:35,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:21:35,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-27 23:21:35,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222913491] [2024-11-27 23:21:35,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222913491] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:21:35,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [178477181] [2024-11-27 23:21:35,359 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:21:35,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:21:35,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c4cd8f-dd71-41d1-84a0-b6ef4ef91886/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:21:35,364 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c4cd8f-dd71-41d1-84a0-b6ef4ef91886/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:21:35,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c4cd8f-dd71-41d1-84a0-b6ef4ef91886/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 23:21:35,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:21:35,433 INFO L256 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 23:21:35,434 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:21:35,475 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:21:35,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [178477181] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:21:35,523 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:21:35,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 5 [2024-11-27 23:21:35,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106612626] [2024-11-27 23:21:35,524 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:21:35,524 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-27 23:21:35,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-27 23:21:35,525 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:21:35,525 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:21:35,525 INFO L87 Difference]: Start difference. First operand 221 states and 283 transitions. cyclomatic complexity: 64 Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:21:35,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:21:35,726 INFO L93 Difference]: Finished difference Result 432 states and 542 transitions. [2024-11-27 23:21:35,726 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 432 states and 542 transitions. [2024-11-27 23:21:35,731 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 302 [2024-11-27 23:21:35,734 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 432 states to 432 states and 542 transitions. [2024-11-27 23:21:35,734 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 432 [2024-11-27 23:21:35,735 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 432 [2024-11-27 23:21:35,736 INFO L73 IsDeterministic]: Start isDeterministic. Operand 432 states and 542 transitions. [2024-11-27 23:21:35,737 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-27 23:21:35,738 INFO L218 hiAutomatonCegarLoop]: Abstraction has 432 states and 542 transitions. [2024-11-27 23:21:35,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states and 542 transitions. [2024-11-27 23:21:35,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 432. [2024-11-27 23:21:35,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 432 states have (on average 1.2546296296296295) internal successors, (542), 431 states have internal predecessors, (542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:21:35,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 542 transitions. [2024-11-27 23:21:35,806 INFO L240 hiAutomatonCegarLoop]: Abstraction has 432 states and 542 transitions. [2024-11-27 23:21:35,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:21:35,808 INFO L425 stractBuchiCegarLoop]: Abstraction has 432 states and 542 transitions. [2024-11-27 23:21:35,808 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-27 23:21:35,808 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 432 states and 542 transitions. [2024-11-27 23:21:35,811 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 302 [2024-11-27 23:21:35,812 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 23:21:35,812 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 23:21:35,813 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:21:35,813 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:21:35,813 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~9#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~12#1;havoc valid_product_~retValue_acc~12#1;valid_product_~retValue_acc~12#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~12#1;" "main_#t~ret53#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~12#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret53#1;havoc main_#t~ret53#1;" "assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0;" "assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_#t~nondet20#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-11-27 23:21:35,813 INFO L749 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet17#1;test_~tmp~4#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1;" "assume !(0 != test_~tmp~4#1);" "havoc test_#t~nondet18#1;test_~tmp___0~2#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1;" "assume !(0 != test_~tmp___0~2#1);" "havoc test_#t~nondet19#1;test_~tmp___2~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1;" "assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1;" "assume { :end_inline_startSystem } true;" "assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret49#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1;" "__utac_acc__Specification5_spec__2_#t~ret49#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret49#1;havoc __utac_acc__Specification5_spec__2_#t~ret49#1;" "havoc __utac_acc__Specification5_spec__2_#t~ret49#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1;" "assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret15#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~2#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;" "assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1;" "isHighWaterLevel_#t~ret15#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~2#1 := isHighWaterLevel_#t~ret15#1;havoc isHighWaterLevel_#t~ret15#1;" "assume 0 != isHighWaterLevel_~tmp~2#1;isHighWaterLevel_~tmp___0~0#1 := 0;" "isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1;" "processEnvironment__wrappee__highWaterSensor_#t~ret4#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret15#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret4#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1;" "assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true;" "havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~1#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret50#1, __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_~tmp~8#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~8#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1;" "__utac_acc__Specification5_spec__3_#t~ret50#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~8#1 := __utac_acc__Specification5_spec__3_#t~ret50#1;havoc __utac_acc__Specification5_spec__3_#t~ret50#1;" "assume 2 != __utac_acc__Specification5_spec__3_~tmp~8#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1;" "__utac_acc__Specification5_spec__3_#t~ret51#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~3#1 := __utac_acc__Specification5_spec__3_#t~ret51#1;havoc __utac_acc__Specification5_spec__3_#t~ret51#1;" "assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~3#1);" "havoc __utac_acc__Specification5_spec__3_#t~ret50#1, __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_~tmp~8#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true;" "assume { :end_inline_timeShift } true;" [2024-11-27 23:21:35,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:21:35,814 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2024-11-27 23:21:35,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 23:21:35,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775005543] [2024-11-27 23:21:35,814 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:21:35,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:21:35,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:21:35,823 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 23:21:35,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:21:35,832 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 23:21:35,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:21:35,832 INFO L85 PathProgramCache]: Analyzing trace with hash -1549190855, now seen corresponding path program 1 times [2024-11-27 23:21:35,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 23:21:35,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943425288] [2024-11-27 23:21:35,833 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:21:35,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:21:35,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:21:35,843 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 23:21:35,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:21:35,852 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 23:21:35,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:21:35,853 INFO L85 PathProgramCache]: Analyzing trace with hash 1933736240, now seen corresponding path program 1 times [2024-11-27 23:21:35,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 23:21:35,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647336699] [2024-11-27 23:21:35,853 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:21:35,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:21:35,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:21:35,868 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 23:21:35,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:21:35,889 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 23:21:37,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:21:37,252 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 23:21:37,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:21:37,338 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.11 11:21:37 BoogieIcfgContainer [2024-11-27 23:21:37,342 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-27 23:21:37,343 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-27 23:21:37,343 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-27 23:21:37,343 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-27 23:21:37,344 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:21:33" (3/4) ... [2024-11-27 23:21:37,345 INFO L143 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-27 23:21:37,424 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c4cd8f-dd71-41d1-84a0-b6ef4ef91886/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-27 23:21:37,426 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-27 23:21:37,429 INFO L158 Benchmark]: Toolchain (without parser) took 5779.17ms. Allocated memory is still 142.6MB. Free memory was 116.7MB in the beginning and 37.3MB in the end (delta: 79.4MB). Peak memory consumption was 77.1MB. Max. memory is 16.1GB. [2024-11-27 23:21:37,429 INFO L158 Benchmark]: CDTParser took 0.42ms. Allocated memory is still 117.4MB. Free memory is still 73.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:21:37,430 INFO L158 Benchmark]: CACSL2BoogieTranslator took 670.97ms. Allocated memory is still 142.6MB. Free memory was 116.5MB in the beginning and 97.6MB in the end (delta: 18.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 23:21:37,431 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.95ms. Allocated memory is still 142.6MB. Free memory was 97.6MB in the beginning and 94.7MB in the end (delta: 2.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 23:21:37,431 INFO L158 Benchmark]: Boogie Preprocessor took 69.77ms. Allocated memory is still 142.6MB. Free memory was 94.7MB in the beginning and 91.8MB in the end (delta: 2.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:21:37,432 INFO L158 Benchmark]: RCFGBuilder took 818.16ms. Allocated memory is still 142.6MB. Free memory was 91.6MB in the beginning and 65.5MB in the end (delta: 26.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-27 23:21:37,433 INFO L158 Benchmark]: BuchiAutomizer took 4045.90ms. Allocated memory is still 142.6MB. Free memory was 65.5MB in the beginning and 40.8MB in the end (delta: 24.7MB). Peak memory consumption was 35.1MB. Max. memory is 16.1GB. [2024-11-27 23:21:37,433 INFO L158 Benchmark]: Witness Printer took 83.52ms. Allocated memory is still 142.6MB. Free memory was 40.8MB in the beginning and 37.3MB in the end (delta: 3.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:21:37,437 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42ms. Allocated memory is still 117.4MB. Free memory is still 73.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 670.97ms. Allocated memory is still 142.6MB. Free memory was 116.5MB in the beginning and 97.6MB in the end (delta: 18.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.95ms. Allocated memory is still 142.6MB. Free memory was 97.6MB in the beginning and 94.7MB in the end (delta: 2.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 69.77ms. Allocated memory is still 142.6MB. Free memory was 94.7MB in the beginning and 91.8MB in the end (delta: 2.9MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 818.16ms. Allocated memory is still 142.6MB. Free memory was 91.6MB in the beginning and 65.5MB in the end (delta: 26.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 4045.90ms. Allocated memory is still 142.6MB. Free memory was 65.5MB in the beginning and 40.8MB in the end (delta: 24.7MB). Peak memory consumption was 35.1MB. Max. memory is 16.1GB. * Witness Printer took 83.52ms. Allocated memory is still 142.6MB. Free memory was 40.8MB in the beginning and 37.3MB in the end (delta: 3.5MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] - GenericResultAtLocation [Line: 58]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [58] - GenericResultAtLocation [Line: 279]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [279] - GenericResultAtLocation [Line: 349]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [349] - GenericResultAtLocation [Line: 453]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [453] - GenericResultAtLocation [Line: 819]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [819] - GenericResultAtLocation [Line: 868]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [868] - GenericResultAtLocation [Line: 906]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [906] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 7 locations. The remainder module has 432 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.9s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 3.0s. Construction of modules took 0.2s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 736 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 736 mSDsluCounter, 1777 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1123 mSDsCounter, 51 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 155 IncrementalHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 51 mSolverCounterUnsat, 654 mSDtfsCounter, 155 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 295]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L70] int pumpRunning = 0; [L71] int systemActive = 1; [L351] int waterLevel = 1; [L352] int methaneLevelCritical = 0; [L623] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L820] int switchedOnBeforeTS ; [L907] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L981] int retValue_acc ; [L982] int tmp ; [L986] FCALL select_helpers() [L987] FCALL select_features() [L988] CALL, EXPR valid_product() [L898] int retValue_acc ; [L901] retValue_acc = 1 [L902] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L988] RET, EXPR valid_product() [L988] tmp = valid_product() [L990] COND TRUE \read(tmp) [L992] FCALL setup() [L993] CALL runTest() [L974] CALL __utac_acc__Specification5_spec__1() [L825] switchedOnBeforeTS = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L974] RET __utac_acc__Specification5_spec__1() [L975] CALL test() [L284] int splverifierCounter ; [L285] int tmp ; [L286] int tmp___0 ; [L287] int tmp___1 ; [L288] int tmp___2 ; [L291] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] Loop: [L295] COND TRUE splverifierCounter < 4 [L301] tmp = __VERIFIER_nondet_int() [L303] COND FALSE !(\read(tmp)) [L311] tmp___0 = __VERIFIER_nondet_int() [L313] COND FALSE !(\read(tmp___0)) [L321] tmp___2 = __VERIFIER_nondet_int() [L323] COND TRUE \read(tmp___2) [L325] CALL startSystem() [L275] systemActive = 1 [L325] RET startSystem() [L338] CALL timeShift() [L80] CALL __utac_acc__Specification5_spec__2() [L834] CALL, EXPR isPumpRunning() [L189] int retValue_acc ; [L192] retValue_acc = pumpRunning [L193] return (retValue_acc); [L834] RET, EXPR isPumpRunning() [L834] switchedOnBeforeTS = isPumpRunning() [L80] RET __utac_acc__Specification5_spec__2() [L82] COND FALSE !(\read(pumpRunning)) [L89] COND TRUE \read(systemActive) [L91] CALL processEnvironment() [L137] int tmp ; [L140] COND FALSE !(\read(pumpRunning)) [L155] CALL processEnvironment__wrappee__highWaterSensor() [L111] int tmp ; [L114] COND TRUE ! pumpRunning [L116] CALL, EXPR isHighWaterLevel() [L234] int retValue_acc ; [L235] int tmp ; [L236] int tmp___0 ; [L240] CALL, EXPR isHighWaterSensorDry() [L431] int retValue_acc ; [L434] COND TRUE waterLevel < 2 [L435] retValue_acc = 1 [L436] return (retValue_acc); [L240] RET, EXPR isHighWaterSensorDry() [L240] tmp = isHighWaterSensorDry() [L242] COND TRUE \read(tmp) [L243] tmp___0 = 0 [L247] retValue_acc = tmp___0 [L248] return (retValue_acc); [L116] RET, EXPR isHighWaterLevel() [L116] tmp = isHighWaterLevel() [L118] COND FALSE !(\read(tmp)) [L124] FCALL processEnvironment__wrappee__base() [L155] RET processEnvironment__wrappee__highWaterSensor() [L91] RET processEnvironment() [L97] CALL __utac_acc__Specification5_spec__3() [L840] int tmp ; [L841] int tmp___0 ; [L845] CALL, EXPR getWaterLevel() [L422] int retValue_acc ; [L425] retValue_acc = waterLevel [L426] return (retValue_acc); [L845] RET, EXPR getWaterLevel() [L845] tmp = getWaterLevel() [L847] COND TRUE tmp != 2 [L849] CALL, EXPR isPumpRunning() [L189] int retValue_acc ; [L192] retValue_acc = pumpRunning [L193] return (retValue_acc); [L849] RET, EXPR isPumpRunning() [L849] tmp___0 = isPumpRunning() [L851] COND FALSE !(\read(tmp___0)) [L97] RET __utac_acc__Specification5_spec__3() [L338] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 295]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L70] int pumpRunning = 0; [L71] int systemActive = 1; [L351] int waterLevel = 1; [L352] int methaneLevelCritical = 0; [L623] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L820] int switchedOnBeforeTS ; [L907] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L981] int retValue_acc ; [L982] int tmp ; [L986] FCALL select_helpers() [L987] FCALL select_features() [L988] CALL, EXPR valid_product() [L898] int retValue_acc ; [L901] retValue_acc = 1 [L902] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L988] RET, EXPR valid_product() [L988] tmp = valid_product() [L990] COND TRUE \read(tmp) [L992] FCALL setup() [L993] CALL runTest() [L974] CALL __utac_acc__Specification5_spec__1() [L825] switchedOnBeforeTS = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L974] RET __utac_acc__Specification5_spec__1() [L975] CALL test() [L284] int splverifierCounter ; [L285] int tmp ; [L286] int tmp___0 ; [L287] int tmp___1 ; [L288] int tmp___2 ; [L291] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] Loop: [L295] COND TRUE splverifierCounter < 4 [L301] tmp = __VERIFIER_nondet_int() [L303] COND FALSE !(\read(tmp)) [L311] tmp___0 = __VERIFIER_nondet_int() [L313] COND FALSE !(\read(tmp___0)) [L321] tmp___2 = __VERIFIER_nondet_int() [L323] COND TRUE \read(tmp___2) [L325] CALL startSystem() [L275] systemActive = 1 [L325] RET startSystem() [L338] CALL timeShift() [L80] CALL __utac_acc__Specification5_spec__2() [L834] CALL, EXPR isPumpRunning() [L189] int retValue_acc ; [L192] retValue_acc = pumpRunning [L193] return (retValue_acc); [L834] RET, EXPR isPumpRunning() [L834] switchedOnBeforeTS = isPumpRunning() [L80] RET __utac_acc__Specification5_spec__2() [L82] COND FALSE !(\read(pumpRunning)) [L89] COND TRUE \read(systemActive) [L91] CALL processEnvironment() [L137] int tmp ; [L140] COND FALSE !(\read(pumpRunning)) [L155] CALL processEnvironment__wrappee__highWaterSensor() [L111] int tmp ; [L114] COND TRUE ! pumpRunning [L116] CALL, EXPR isHighWaterLevel() [L234] int retValue_acc ; [L235] int tmp ; [L236] int tmp___0 ; [L240] CALL, EXPR isHighWaterSensorDry() [L431] int retValue_acc ; [L434] COND TRUE waterLevel < 2 [L435] retValue_acc = 1 [L436] return (retValue_acc); [L240] RET, EXPR isHighWaterSensorDry() [L240] tmp = isHighWaterSensorDry() [L242] COND TRUE \read(tmp) [L243] tmp___0 = 0 [L247] retValue_acc = tmp___0 [L248] return (retValue_acc); [L116] RET, EXPR isHighWaterLevel() [L116] tmp = isHighWaterLevel() [L118] COND FALSE !(\read(tmp)) [L124] FCALL processEnvironment__wrappee__base() [L155] RET processEnvironment__wrappee__highWaterSensor() [L91] RET processEnvironment() [L97] CALL __utac_acc__Specification5_spec__3() [L840] int tmp ; [L841] int tmp___0 ; [L845] CALL, EXPR getWaterLevel() [L422] int retValue_acc ; [L425] retValue_acc = waterLevel [L426] return (retValue_acc); [L845] RET, EXPR getWaterLevel() [L845] tmp = getWaterLevel() [L847] COND TRUE tmp != 2 [L849] CALL, EXPR isPumpRunning() [L189] int retValue_acc ; [L192] retValue_acc = pumpRunning [L193] return (retValue_acc); [L849] RET, EXPR isPumpRunning() [L849] tmp___0 = isPumpRunning() [L851] COND FALSE !(\read(tmp___0)) [L97] RET __utac_acc__Specification5_spec__3() [L338] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-27 23:21:37,466 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c4cd8f-dd71-41d1-84a0-b6ef4ef91886/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-27 23:21:37,669 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c4cd8f-dd71-41d1-84a0-b6ef4ef91886/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-27 23:21:37,862 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c4cd8f-dd71-41d1-84a0-b6ef4ef91886/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-27 23:21:38,063 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c4cd8f-dd71-41d1-84a0-b6ef4ef91886/bin/uautomizer-verify-aQ6SnzHsRB/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)