./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product50.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef31ca80-98b6-4479-bf6b-d0b7e7a5f7e2/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef31ca80-98b6-4479-bf6b-d0b7e7a5f7e2/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef31ca80-98b6-4479-bf6b-d0b7e7a5f7e2/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef31ca80-98b6-4479-bf6b-d0b7e7a5f7e2/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product50.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef31ca80-98b6-4479-bf6b-d0b7e7a5f7e2/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef31ca80-98b6-4479-bf6b-d0b7e7a5f7e2/bin/uautomizer-verify-LYvppIcaGC --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 0552f986eafe304f33f56d4376c7c6a56e2d691e1035259c5c13e13b2a7157c1 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:14:44,702 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:14:44,807 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef31ca80-98b6-4479-bf6b-d0b7e7a5f7e2/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-24 00:14:44,813 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:14:44,816 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:14:44,851 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:14:44,853 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:14:44,853 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:14:44,854 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:14:44,854 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:14:44,855 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:14:44,856 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:14:44,856 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:14:44,856 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-24 00:14:44,856 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-24 00:14:44,856 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-24 00:14:44,856 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-24 00:14:44,856 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-24 00:14:44,857 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-24 00:14:44,857 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:14:44,857 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-24 00:14:44,857 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 00:14:44,857 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 00:14:44,857 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 00:14:44,858 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:14:44,858 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-24 00:14:44,858 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-24 00:14:44,858 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-24 00:14:44,858 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-24 00:14:44,858 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 00:14:44,858 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:14:44,858 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-24 00:14:44,859 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:14:44,859 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:14:44,860 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:14:44,860 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:14:44,860 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:14:44,860 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-11-24 00:14:44,860 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-24 00:14:44,860 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_ef31ca80-98b6-4479-bf6b-d0b7e7a5f7e2/bin/uautomizer-verify-LYvppIcaGC 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 -> 0552f986eafe304f33f56d4376c7c6a56e2d691e1035259c5c13e13b2a7157c1 [2024-11-24 00:14:45,184 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:14:45,198 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:14:45,201 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:14:45,202 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:14:45,203 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:14:45,204 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef31ca80-98b6-4479-bf6b-d0b7e7a5f7e2/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/product-lines/minepump_spec3_product50.cil.c [2024-11-24 00:14:48,283 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef31ca80-98b6-4479-bf6b-d0b7e7a5f7e2/bin/uautomizer-verify-LYvppIcaGC/data/6472fab59/2ea020dd3a1d45a68e0416b8bb9c03e7/FLAG9fe8f650a [2024-11-24 00:14:48,609 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:14:48,610 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef31ca80-98b6-4479-bf6b-d0b7e7a5f7e2/sv-benchmarks/c/product-lines/minepump_spec3_product50.cil.c [2024-11-24 00:14:48,624 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef31ca80-98b6-4479-bf6b-d0b7e7a5f7e2/bin/uautomizer-verify-LYvppIcaGC/data/6472fab59/2ea020dd3a1d45a68e0416b8bb9c03e7/FLAG9fe8f650a [2024-11-24 00:14:48,647 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef31ca80-98b6-4479-bf6b-d0b7e7a5f7e2/bin/uautomizer-verify-LYvppIcaGC/data/6472fab59/2ea020dd3a1d45a68e0416b8bb9c03e7 [2024-11-24 00:14:48,649 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:14:48,652 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:14:48,653 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:14:48,653 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:14:48,657 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:14:48,658 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:14:48" (1/1) ... [2024-11-24 00:14:48,661 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5038f884 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:14:48, skipping insertion in model container [2024-11-24 00:14:48,661 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:14:48" (1/1) ... [2024-11-24 00:14:48,693 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:14:49,062 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:14:49,074 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:14:49,084 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [49] [2024-11-24 00:14:49,086 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [415] [2024-11-24 00:14:49,086 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [453] [2024-11-24 00:14:49,086 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [562] [2024-11-24 00:14:49,086 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [664] [2024-11-24 00:14:49,086 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [699] [2024-11-24 00:14:49,087 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [708] [2024-11-24 00:14:49,087 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [776] [2024-11-24 00:14:49,198 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:14:49,225 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:14:49,226 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:14:49 WrapperNode [2024-11-24 00:14:49,226 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:14:49,227 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:14:49,227 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:14:49,227 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:14:49,237 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:14:49" (1/1) ... [2024-11-24 00:14:49,258 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:14:49" (1/1) ... [2024-11-24 00:14:49,310 INFO L138 Inliner]: procedures = 56, calls = 101, calls flagged for inlining = 54, calls inlined = 84, statements flattened = 583 [2024-11-24 00:14:49,314 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:14:49,315 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:14:49,315 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:14:49,315 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:14:49,325 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:14:49" (1/1) ... [2024-11-24 00:14:49,326 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:14:49" (1/1) ... [2024-11-24 00:14:49,330 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:14:49" (1/1) ... [2024-11-24 00:14:49,359 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]. [2024-11-24 00:14:49,362 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:14:49" (1/1) ... [2024-11-24 00:14:49,362 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:14:49" (1/1) ... [2024-11-24 00:14:49,370 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:14:49" (1/1) ... [2024-11-24 00:14:49,376 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:14:49" (1/1) ... [2024-11-24 00:14:49,386 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:14:49" (1/1) ... [2024-11-24 00:14:49,387 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:14:49" (1/1) ... [2024-11-24 00:14:49,392 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:14:49" (1/1) ... [2024-11-24 00:14:49,395 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:14:49,400 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:14:49,400 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:14:49,400 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:14:49,401 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:14:49" (1/1) ... [2024-11-24 00:14:49,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 00:14:49,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef31ca80-98b6-4479-bf6b-d0b7e7a5f7e2/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:14:49,450 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef31ca80-98b6-4479-bf6b-d0b7e7a5f7e2/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-24 00:14:49,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef31ca80-98b6-4479-bf6b-d0b7e7a5f7e2/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-24 00:14:49,483 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:14:49,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 00:14:49,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:14:49,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:14:49,581 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:14:49,584 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:14:50,135 INFO L? ?]: Removed 142 outVars from TransFormulas that were not future-live. [2024-11-24 00:14:50,135 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:14:50,150 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:14:50,151 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-24 00:14:50,151 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:14:50 BoogieIcfgContainer [2024-11-24 00:14:50,151 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:14:50,152 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-24 00:14:50,152 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-24 00:14:50,158 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-24 00:14:50,159 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-24 00:14:50,159 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 24.11 12:14:48" (1/3) ... [2024-11-24 00:14:50,161 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@714a6bdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 24.11 12:14:50, skipping insertion in model container [2024-11-24 00:14:50,161 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-24 00:14:50,161 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:14:49" (2/3) ... [2024-11-24 00:14:50,161 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@714a6bdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 24.11 12:14:50, skipping insertion in model container [2024-11-24 00:14:50,161 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-24 00:14:50,162 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:14:50" (3/3) ... [2024-11-24 00:14:50,163 INFO L363 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product50.cil.c [2024-11-24 00:14:50,233 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-24 00:14:50,234 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-24 00:14:50,235 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-24 00:14:50,235 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-24 00:14:50,235 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-24 00:14:50,235 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-24 00:14:50,235 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-24 00:14:50,236 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-24 00:14:50,243 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 170 states, 169 states have (on average 1.378698224852071) internal successors, (233), 169 states have internal predecessors, (233), 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) [2024-11-24 00:14:50,271 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 109 [2024-11-24 00:14:50,271 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-24 00:14:50,271 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-24 00:14:50,276 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:14:50,277 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:14:50,277 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-24 00:14:50,277 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 170 states, 169 states have (on average 1.378698224852071) internal successors, (233), 169 states have internal predecessors, (233), 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) [2024-11-24 00:14:50,284 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 109 [2024-11-24 00:14:50,284 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-24 00:14:50,284 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-24 00:14:50,285 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:14:50,285 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:14:50,290 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);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret35#1, main_~retValue_acc~7#1, main_~tmp~4#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~4#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~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1;" "main_#t~ret35#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret35#1;havoc main_#t~ret35#1;" "assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-11-24 00:14:50,291 INFO L749 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet37#1;test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1;" "assume !(0 != test_~tmp~5#1);" "havoc test_#t~nondet38#1;test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1;" "assume !(0 != test_~tmp___0~1#1);" "havoc test_#t~nondet39#1;test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1;" "assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1;" "assume { :end_inline_startSystem } true;" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume !(0 != ~systemActive~0);" "assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret27#1, __utac_acc__Specification3_spec__1_#t~ret28#1, __utac_acc__Specification3_spec__1_#t~ret29#1, __utac_acc__Specification3_spec__1_~tmp~3#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1;" "__utac_acc__Specification3_spec__1_#t~ret27#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~3#1 := __utac_acc__Specification3_spec__1_#t~ret27#1;havoc __utac_acc__Specification3_spec__1_#t~ret27#1;" "assume 0 != __utac_acc__Specification3_spec__1_~tmp~3#1;" "havoc __utac_acc__Specification3_spec__1_#t~ret27#1, __utac_acc__Specification3_spec__1_#t~ret28#1, __utac_acc__Specification3_spec__1_#t~ret29#1, __utac_acc__Specification3_spec__1_~tmp~3#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2024-11-24 00:14:50,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:14:50,296 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2024-11-24 00:14:50,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-24 00:14:50,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855847599] [2024-11-24 00:14:50,303 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:14:50,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:14:50,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:14:50,401 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:14:50,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:14:50,438 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-24 00:14:50,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:14:50,442 INFO L85 PathProgramCache]: Analyzing trace with hash -1160937537, now seen corresponding path program 1 times [2024-11-24 00:14:50,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-24 00:14:50,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089067] [2024-11-24 00:14:50,443 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:14:50,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:14:50,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:14:50,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-24 00:14:50,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089067] [2024-11-24 00:14:50,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089067] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:14:50,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1084711232] [2024-11-24 00:14:50,548 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:14:50,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:14:50,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef31ca80-98b6-4479-bf6b-d0b7e7a5f7e2/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:14:50,554 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef31ca80-98b6-4479-bf6b-d0b7e7a5f7e2/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:14:50,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef31ca80-98b6-4479-bf6b-d0b7e7a5f7e2/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 00:14:50,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:14:50,629 INFO L256 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-24 00:14:50,630 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:14:50,658 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:14:50,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1084711232] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:14:50,685 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:14:50,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-11-24 00:14:50,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265395832] [2024-11-24 00:14:50,686 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:14:50,690 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-24 00:14:50,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-24 00:14:50,719 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:14:50,720 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:14:50,723 INFO L87 Difference]: Start difference. First operand has 170 states, 169 states have (on average 1.378698224852071) internal successors, (233), 169 states have internal predecessors, (233), 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 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2024-11-24 00:14:50,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:14:50,774 INFO L93 Difference]: Finished difference Result 164 states and 217 transitions. [2024-11-24 00:14:50,775 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 164 states and 217 transitions. [2024-11-24 00:14:50,778 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 103 [2024-11-24 00:14:50,788 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 164 states to 154 states and 206 transitions. [2024-11-24 00:14:50,789 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 154 [2024-11-24 00:14:50,790 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 154 [2024-11-24 00:14:50,791 INFO L73 IsDeterministic]: Start isDeterministic. Operand 154 states and 206 transitions. [2024-11-24 00:14:50,792 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-24 00:14:50,792 INFO L218 hiAutomatonCegarLoop]: Abstraction has 154 states and 206 transitions. [2024-11-24 00:14:50,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states and 206 transitions. [2024-11-24 00:14:50,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2024-11-24 00:14:50,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 154 states have (on average 1.3376623376623376) internal successors, (206), 153 states have internal predecessors, (206), 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) [2024-11-24 00:14:50,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 206 transitions. [2024-11-24 00:14:50,825 INFO L240 hiAutomatonCegarLoop]: Abstraction has 154 states and 206 transitions. [2024-11-24 00:14:50,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:14:50,830 INFO L425 stractBuchiCegarLoop]: Abstraction has 154 states and 206 transitions. [2024-11-24 00:14:50,830 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-24 00:14:50,830 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 154 states and 206 transitions. [2024-11-24 00:14:50,832 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 103 [2024-11-24 00:14:50,833 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-24 00:14:50,833 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-24 00:14:50,833 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:14:50,833 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:14:50,834 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);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret35#1, main_~retValue_acc~7#1, main_~tmp~4#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~4#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~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1;" "main_#t~ret35#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret35#1;havoc main_#t~ret35#1;" "assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-11-24 00:14:50,834 INFO L749 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet37#1;test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1;" "assume !(0 != test_~tmp~5#1);" "havoc test_#t~nondet38#1;test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1;" "assume !(0 != test_~tmp___0~1#1);" "havoc test_#t~nondet39#1;test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1;" "assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet40#1;test_~tmp___1~1#1 := test_#t~nondet40#1;havoc test_#t~nondet40#1;" "assume 0 != test_~tmp___1~1#1;" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret42#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret41#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6#1;" "assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment__wrappee__highWaterSensor_#t~ret41#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true;" "havoc processEnvironment_#t~ret42#1, processEnvironment_~tmp~7#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret27#1, __utac_acc__Specification3_spec__1_#t~ret28#1, __utac_acc__Specification3_spec__1_#t~ret29#1, __utac_acc__Specification3_spec__1_~tmp~3#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1;" "__utac_acc__Specification3_spec__1_#t~ret27#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~3#1 := __utac_acc__Specification3_spec__1_#t~ret27#1;havoc __utac_acc__Specification3_spec__1_#t~ret27#1;" "assume 0 != __utac_acc__Specification3_spec__1_~tmp~3#1;" "havoc __utac_acc__Specification3_spec__1_#t~ret27#1, __utac_acc__Specification3_spec__1_#t~ret28#1, __utac_acc__Specification3_spec__1_#t~ret29#1, __utac_acc__Specification3_spec__1_~tmp~3#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2024-11-24 00:14:50,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:14:50,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2024-11-24 00:14:50,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-24 00:14:50,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365237007] [2024-11-24 00:14:50,835 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:14:50,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:14:50,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:14:50,847 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:14:50,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:14:50,858 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-24 00:14:50,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:14:50,859 INFO L85 PathProgramCache]: Analyzing trace with hash -996764469, now seen corresponding path program 1 times [2024-11-24 00:14:50,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-24 00:14:50,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148465094] [2024-11-24 00:14:50,859 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:14:50,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:14:50,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:14:50,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-24 00:14:50,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148465094] [2024-11-24 00:14:50,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148465094] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:14:50,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1764002183] [2024-11-24 00:14:50,889 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:14:50,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:14:50,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef31ca80-98b6-4479-bf6b-d0b7e7a5f7e2/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:14:50,891 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef31ca80-98b6-4479-bf6b-d0b7e7a5f7e2/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:14:50,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef31ca80-98b6-4479-bf6b-d0b7e7a5f7e2/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 00:14:50,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:14:50,951 INFO L256 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 00:14:50,952 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:14:50,964 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:14:50,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1764002183] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:14:50,979 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:14:50,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-11-24 00:14:50,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047790283] [2024-11-24 00:14:50,980 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:14:50,980 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-24 00:14:50,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-24 00:14:50,983 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:14:50,983 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:14:50,983 INFO L87 Difference]: Start difference. First operand 154 states and 206 transitions. cyclomatic complexity: 54 Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:14:51,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:14:51,110 INFO L93 Difference]: Finished difference Result 214 states and 276 transitions. [2024-11-24 00:14:51,112 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 214 states and 276 transitions. [2024-11-24 00:14:51,115 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 148 [2024-11-24 00:14:51,119 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 214 states to 214 states and 276 transitions. [2024-11-24 00:14:51,119 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 214 [2024-11-24 00:14:51,120 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 214 [2024-11-24 00:14:51,120 INFO L73 IsDeterministic]: Start isDeterministic. Operand 214 states and 276 transitions. [2024-11-24 00:14:51,125 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-24 00:14:51,125 INFO L218 hiAutomatonCegarLoop]: Abstraction has 214 states and 276 transitions. [2024-11-24 00:14:51,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states and 276 transitions. [2024-11-24 00:14:51,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2024-11-24 00:14:51,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 214 states have (on average 1.2897196261682242) internal successors, (276), 213 states have internal predecessors, (276), 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) [2024-11-24 00:14:51,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 276 transitions. [2024-11-24 00:14:51,137 INFO L240 hiAutomatonCegarLoop]: Abstraction has 214 states and 276 transitions. [2024-11-24 00:14:51,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:14:51,138 INFO L425 stractBuchiCegarLoop]: Abstraction has 214 states and 276 transitions. [2024-11-24 00:14:51,139 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-24 00:14:51,139 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 214 states and 276 transitions. [2024-11-24 00:14:51,141 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 148 [2024-11-24 00:14:51,141 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-24 00:14:51,141 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-24 00:14:51,142 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:14:51,142 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] [2024-11-24 00:14:51,142 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);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret35#1, main_~retValue_acc~7#1, main_~tmp~4#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~4#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~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1;" "main_#t~ret35#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret35#1;havoc main_#t~ret35#1;" "assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-11-24 00:14:51,142 INFO L749 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet37#1;test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1;" "assume !(0 != test_~tmp~5#1);" "havoc test_#t~nondet38#1;test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1;" "assume !(0 != test_~tmp___0~1#1);" "havoc test_#t~nondet39#1;test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1;" "assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet40#1;test_~tmp___1~1#1 := test_#t~nondet40#1;havoc test_#t~nondet40#1;" "assume 0 != test_~tmp___1~1#1;" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret42#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret41#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6#1;" "assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret52#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~12#1;havoc isHighWaterLevel_~tmp~8#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;" "assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~5#1;" "isHighWaterLevel_#t~ret52#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8#1 := isHighWaterLevel_#t~ret52#1;havoc isHighWaterLevel_#t~ret52#1;" "assume 0 != isHighWaterLevel_~tmp~8#1;isHighWaterLevel_~tmp___0~2#1 := 0;" "isHighWaterLevel_~retValue_acc~12#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1;" "processEnvironment__wrappee__highWaterSensor_#t~ret41#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret52#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~2#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~6#1 := processEnvironment__wrappee__highWaterSensor_#t~ret41#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret41#1;" "assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6#1);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment__wrappee__highWaterSensor_#t~ret41#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true;" "havoc processEnvironment_#t~ret42#1, processEnvironment_~tmp~7#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret27#1, __utac_acc__Specification3_spec__1_#t~ret28#1, __utac_acc__Specification3_spec__1_#t~ret29#1, __utac_acc__Specification3_spec__1_~tmp~3#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1;" "__utac_acc__Specification3_spec__1_#t~ret27#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~3#1 := __utac_acc__Specification3_spec__1_#t~ret27#1;havoc __utac_acc__Specification3_spec__1_#t~ret27#1;" "assume 0 != __utac_acc__Specification3_spec__1_~tmp~3#1;" "havoc __utac_acc__Specification3_spec__1_#t~ret27#1, __utac_acc__Specification3_spec__1_#t~ret28#1, __utac_acc__Specification3_spec__1_#t~ret29#1, __utac_acc__Specification3_spec__1_~tmp~3#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2024-11-24 00:14:51,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:14:51,143 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2024-11-24 00:14:51,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-24 00:14:51,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925571772] [2024-11-24 00:14:51,144 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:14:51,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:14:51,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:14:51,156 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:14:51,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:14:51,167 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-24 00:14:51,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:14:51,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1847157565, now seen corresponding path program 1 times [2024-11-24 00:14:51,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-24 00:14:51,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665457979] [2024-11-24 00:14:51,168 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:14:51,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:14:51,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:14:51,180 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:14:51,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:14:51,195 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-24 00:14:51,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:14:51,196 INFO L85 PathProgramCache]: Analyzing trace with hash -1471869825, now seen corresponding path program 1 times [2024-11-24 00:14:51,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-24 00:14:51,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743070056] [2024-11-24 00:14:51,196 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:14:51,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:14:51,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:14:51,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-24 00:14:51,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743070056] [2024-11-24 00:14:51,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743070056] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:14:51,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [673970911] [2024-11-24 00:14:51,373 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:14:51,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:14:51,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef31ca80-98b6-4479-bf6b-d0b7e7a5f7e2/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:14:51,375 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef31ca80-98b6-4479-bf6b-d0b7e7a5f7e2/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:14:51,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef31ca80-98b6-4479-bf6b-d0b7e7a5f7e2/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-24 00:14:51,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:14:51,562 INFO L256 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-24 00:14:51,565 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:14:51,670 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:14:51,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [673970911] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:14:51,772 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:14:51,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 4 [2024-11-24 00:14:51,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587927618] [2024-11-24 00:14:51,772 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:14:51,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-24 00:14:51,955 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:14:51,956 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:14:51,956 INFO L87 Difference]: Start difference. First operand 214 states and 276 transitions. cyclomatic complexity: 64 Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 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) [2024-11-24 00:14:52,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:14:52,070 INFO L93 Difference]: Finished difference Result 421 states and 537 transitions. [2024-11-24 00:14:52,070 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 421 states and 537 transitions. [2024-11-24 00:14:52,076 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 296 [2024-11-24 00:14:52,082 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 421 states to 421 states and 537 transitions. [2024-11-24 00:14:52,082 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 421 [2024-11-24 00:14:52,083 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 421 [2024-11-24 00:14:52,083 INFO L73 IsDeterministic]: Start isDeterministic. Operand 421 states and 537 transitions. [2024-11-24 00:14:52,087 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-24 00:14:52,087 INFO L218 hiAutomatonCegarLoop]: Abstraction has 421 states and 537 transitions. [2024-11-24 00:14:52,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states and 537 transitions. [2024-11-24 00:14:52,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 421. [2024-11-24 00:14:52,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 421 states have (on average 1.2755344418052257) internal successors, (537), 420 states have internal predecessors, (537), 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) [2024-11-24 00:14:52,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 537 transitions. [2024-11-24 00:14:52,123 INFO L240 hiAutomatonCegarLoop]: Abstraction has 421 states and 537 transitions. [2024-11-24 00:14:52,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:14:52,124 INFO L425 stractBuchiCegarLoop]: Abstraction has 421 states and 537 transitions. [2024-11-24 00:14:52,124 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-24 00:14:52,124 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 421 states and 537 transitions. [2024-11-24 00:14:52,130 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 296 [2024-11-24 00:14:52,130 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-24 00:14:52,130 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-24 00:14:52,131 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:14:52,131 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] [2024-11-24 00:14:52,131 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);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret35#1, main_~retValue_acc~7#1, main_~tmp~4#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~4#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~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1;" "main_#t~ret35#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret35#1;havoc main_#t~ret35#1;" "assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-11-24 00:14:52,131 INFO L749 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet37#1;test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1;" "assume !(0 != test_~tmp~5#1);" "havoc test_#t~nondet38#1;test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1;" "assume !(0 != test_~tmp___0~1#1);" "havoc test_#t~nondet39#1;test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1;" "assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet40#1;test_~tmp___1~1#1 := test_#t~nondet40#1;havoc test_#t~nondet40#1;" "assume 0 != test_~tmp___1~1#1;" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret42#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret41#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6#1;" "assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret52#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~12#1;havoc isHighWaterLevel_~tmp~8#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;" "assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~5#1;" "isHighWaterLevel_#t~ret52#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8#1 := isHighWaterLevel_#t~ret52#1;havoc isHighWaterLevel_#t~ret52#1;" "assume 0 != isHighWaterLevel_~tmp~8#1;isHighWaterLevel_~tmp___0~2#1 := 0;" "isHighWaterLevel_~retValue_acc~12#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1;" "processEnvironment__wrappee__highWaterSensor_#t~ret41#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret52#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~2#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~6#1 := processEnvironment__wrappee__highWaterSensor_#t~ret41#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret41#1;" "assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6#1);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment__wrappee__highWaterSensor_#t~ret41#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true;" "havoc processEnvironment_#t~ret42#1, processEnvironment_~tmp~7#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret27#1, __utac_acc__Specification3_spec__1_#t~ret28#1, __utac_acc__Specification3_spec__1_#t~ret29#1, __utac_acc__Specification3_spec__1_~tmp~3#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1;" "__utac_acc__Specification3_spec__1_#t~ret27#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~3#1 := __utac_acc__Specification3_spec__1_#t~ret27#1;havoc __utac_acc__Specification3_spec__1_#t~ret27#1;" "assume !(0 != __utac_acc__Specification3_spec__1_~tmp~3#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;havoc getWaterLevel_~retValue_acc~4#1;getWaterLevel_~retValue_acc~4#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~4#1;" "__utac_acc__Specification3_spec__1_#t~ret28#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~0#1 := __utac_acc__Specification3_spec__1_#t~ret28#1;havoc __utac_acc__Specification3_spec__1_#t~ret28#1;" "assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0#1);" "havoc __utac_acc__Specification3_spec__1_#t~ret27#1, __utac_acc__Specification3_spec__1_#t~ret28#1, __utac_acc__Specification3_spec__1_#t~ret29#1, __utac_acc__Specification3_spec__1_~tmp~3#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2024-11-24 00:14:52,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:14:52,132 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2024-11-24 00:14:52,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-24 00:14:52,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096052683] [2024-11-24 00:14:52,135 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:14:52,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:14:52,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:14:52,150 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:14:52,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:14:52,166 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-24 00:14:52,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:14:52,166 INFO L85 PathProgramCache]: Analyzing trace with hash -1295732744, now seen corresponding path program 1 times [2024-11-24 00:14:52,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-24 00:14:52,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180173400] [2024-11-24 00:14:52,167 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:14:52,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:14:52,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:14:52,184 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:14:52,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:14:52,200 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-24 00:14:52,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:14:52,201 INFO L85 PathProgramCache]: Analyzing trace with hash -1421467468, now seen corresponding path program 1 times [2024-11-24 00:14:52,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-24 00:14:52,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962134984] [2024-11-24 00:14:52,204 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:14:52,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:14:52,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:14:52,227 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:14:52,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:14:52,248 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-24 00:14:53,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:14:53,321 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:14:53,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:14:53,391 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 24.11 12:14:53 BoogieIcfgContainer [2024-11-24 00:14:53,391 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-24 00:14:53,391 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 00:14:53,392 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 00:14:53,392 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 00:14:53,392 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:14:50" (3/4) ... [2024-11-24 00:14:53,395 INFO L143 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-24 00:14:53,459 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef31ca80-98b6-4479-bf6b-d0b7e7a5f7e2/bin/uautomizer-verify-LYvppIcaGC/witness.graphml [2024-11-24 00:14:53,460 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 00:14:53,463 INFO L158 Benchmark]: Toolchain (without parser) took 4810.35ms. Allocated memory is still 117.4MB. Free memory was 92.3MB in the beginning and 44.2MB in the end (delta: 48.0MB). Peak memory consumption was 51.7MB. Max. memory is 16.1GB. [2024-11-24 00:14:53,464 INFO L158 Benchmark]: CDTParser took 1.61ms. Allocated memory is still 117.4MB. Free memory was 74.0MB in the beginning and 73.9MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:14:53,464 INFO L158 Benchmark]: CACSL2BoogieTranslator took 573.62ms. Allocated memory is still 117.4MB. Free memory was 92.0MB in the beginning and 73.5MB in the end (delta: 18.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-24 00:14:53,464 INFO L158 Benchmark]: Boogie Procedure Inliner took 87.30ms. Allocated memory is still 117.4MB. Free memory was 73.5MB in the beginning and 70.6MB in the end (delta: 2.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 00:14:53,465 INFO L158 Benchmark]: Boogie Preprocessor took 84.08ms. Allocated memory is still 117.4MB. Free memory was 70.6MB in the beginning and 67.7MB in the end (delta: 2.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:14:53,465 INFO L158 Benchmark]: RCFGBuilder took 751.92ms. Allocated memory is still 117.4MB. Free memory was 67.7MB in the beginning and 41.4MB in the end (delta: 26.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-24 00:14:53,465 INFO L158 Benchmark]: BuchiAutomizer took 3238.55ms. Allocated memory is still 117.4MB. Free memory was 41.4MB in the beginning and 46.5MB in the end (delta: -5.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:14:53,466 INFO L158 Benchmark]: Witness Printer took 68.52ms. Allocated memory is still 117.4MB. Free memory was 46.5MB in the beginning and 44.2MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 00:14:53,468 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.61ms. Allocated memory is still 117.4MB. Free memory was 74.0MB in the beginning and 73.9MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 573.62ms. Allocated memory is still 117.4MB. Free memory was 92.0MB in the beginning and 73.5MB in the end (delta: 18.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 87.30ms. Allocated memory is still 117.4MB. Free memory was 73.5MB in the beginning and 70.6MB in the end (delta: 2.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 84.08ms. Allocated memory is still 117.4MB. Free memory was 70.6MB in the beginning and 67.7MB in the end (delta: 2.9MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 751.92ms. Allocated memory is still 117.4MB. Free memory was 67.7MB in the beginning and 41.4MB in the end (delta: 26.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 3238.55ms. Allocated memory is still 117.4MB. Free memory was 41.4MB in the beginning and 46.5MB in the end (delta: -5.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 68.52ms. Allocated memory is still 117.4MB. Free memory was 46.5MB in the beginning and 44.2MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [49] - GenericResultAtLocation [Line: 415]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [415] - GenericResultAtLocation [Line: 453]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [453] - GenericResultAtLocation [Line: 562]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [562] - GenericResultAtLocation [Line: 664]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [664] - GenericResultAtLocation [Line: 699]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [699] - GenericResultAtLocation [Line: 708]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [708] - GenericResultAtLocation [Line: 776]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [776] * 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 5 locations. The remainder module has 421 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.1s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 2.5s. Construction of modules took 0.1s. Büchi inclusion checks took 0.3s. 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, 516 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 516 mSDsluCounter, 1294 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 667 mSDsCounter, 31 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 73 IncrementalHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 31 mSolverCounterUnsat, 627 mSDtfsCounter, 73 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: 722]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L460] int waterLevel = 1; [L461] int methaneLevelCritical = 0; [L563] int cleanupTimeShifts = 4; [L779] int pumpRunning = 0; [L780] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L642] int retValue_acc ; [L643] int tmp ; [L647] FCALL select_helpers() [L648] FCALL select_features() [L649] CALL, EXPR valid_product() [L691] int retValue_acc ; [L694] retValue_acc = 1 [L695] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L649] RET, EXPR valid_product() [L649] tmp = valid_product() [L651] COND TRUE \read(tmp) [L653] FCALL setup() [L654] CALL runTest() [L633] CALL test() [L711] int splverifierCounter ; [L712] int tmp ; [L713] int tmp___0 ; [L714] int tmp___1 ; [L715] int tmp___2 ; [L718] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L722] COND TRUE splverifierCounter < 4 [L728] tmp = __VERIFIER_nondet_int() [L730] COND FALSE !(\read(tmp)) [L738] tmp___0 = __VERIFIER_nondet_int() [L740] COND FALSE !(\read(tmp___0)) [L748] tmp___2 = __VERIFIER_nondet_int() [L750] COND FALSE !(\read(tmp___2)) [L756] tmp___1 = __VERIFIER_nondet_int() [L758] COND TRUE \read(tmp___1) [L765] CALL timeShift() [L786] COND FALSE !(\read(pumpRunning)) [L793] COND TRUE \read(systemActive) [L795] CALL processEnvironment() [L841] int tmp ; [L844] COND FALSE !(\read(pumpRunning)) [L859] CALL processEnvironment__wrappee__highWaterSensor() [L815] int tmp ; [L818] COND TRUE ! pumpRunning [L820] CALL, EXPR isHighWaterLevel() [L938] int retValue_acc ; [L939] int tmp ; [L940] int tmp___0 ; [L944] CALL, EXPR isHighWaterSensorDry() [L540] int retValue_acc ; [L543] COND TRUE waterLevel < 2 [L544] retValue_acc = 1 [L545] return (retValue_acc); [L944] RET, EXPR isHighWaterSensorDry() [L944] tmp = isHighWaterSensorDry() [L946] COND TRUE \read(tmp) [L947] tmp___0 = 0 [L951] retValue_acc = tmp___0 [L952] return (retValue_acc); [L820] RET, EXPR isHighWaterLevel() [L820] tmp = isHighWaterLevel() [L822] COND FALSE !(\read(tmp)) [L828] FCALL processEnvironment__wrappee__base() [L859] RET processEnvironment__wrappee__highWaterSensor() [L795] RET processEnvironment() [L801] CALL __utac_acc__Specification3_spec__1() [L421] int tmp ; [L422] int tmp___0 ; [L423] int tmp___1 ; [L427] CALL, EXPR isMethaneLevelCritical() [L499] int retValue_acc ; [L502] retValue_acc = methaneLevelCritical [L503] return (retValue_acc); [L427] RET, EXPR isMethaneLevelCritical() [L427] tmp = isMethaneLevelCritical() [L429] COND FALSE !(\read(tmp)) [L433] CALL, EXPR getWaterLevel() [L531] int retValue_acc ; [L534] retValue_acc = waterLevel [L535] return (retValue_acc); [L433] RET, EXPR getWaterLevel() [L433] tmp___0 = getWaterLevel() [L435] COND FALSE !(tmp___0 == 2) [L801] RET __utac_acc__Specification3_spec__1() [L765] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 722]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L460] int waterLevel = 1; [L461] int methaneLevelCritical = 0; [L563] int cleanupTimeShifts = 4; [L779] int pumpRunning = 0; [L780] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L642] int retValue_acc ; [L643] int tmp ; [L647] FCALL select_helpers() [L648] FCALL select_features() [L649] CALL, EXPR valid_product() [L691] int retValue_acc ; [L694] retValue_acc = 1 [L695] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L649] RET, EXPR valid_product() [L649] tmp = valid_product() [L651] COND TRUE \read(tmp) [L653] FCALL setup() [L654] CALL runTest() [L633] CALL test() [L711] int splverifierCounter ; [L712] int tmp ; [L713] int tmp___0 ; [L714] int tmp___1 ; [L715] int tmp___2 ; [L718] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L722] COND TRUE splverifierCounter < 4 [L728] tmp = __VERIFIER_nondet_int() [L730] COND FALSE !(\read(tmp)) [L738] tmp___0 = __VERIFIER_nondet_int() [L740] COND FALSE !(\read(tmp___0)) [L748] tmp___2 = __VERIFIER_nondet_int() [L750] COND FALSE !(\read(tmp___2)) [L756] tmp___1 = __VERIFIER_nondet_int() [L758] COND TRUE \read(tmp___1) [L765] CALL timeShift() [L786] COND FALSE !(\read(pumpRunning)) [L793] COND TRUE \read(systemActive) [L795] CALL processEnvironment() [L841] int tmp ; [L844] COND FALSE !(\read(pumpRunning)) [L859] CALL processEnvironment__wrappee__highWaterSensor() [L815] int tmp ; [L818] COND TRUE ! pumpRunning [L820] CALL, EXPR isHighWaterLevel() [L938] int retValue_acc ; [L939] int tmp ; [L940] int tmp___0 ; [L944] CALL, EXPR isHighWaterSensorDry() [L540] int retValue_acc ; [L543] COND TRUE waterLevel < 2 [L544] retValue_acc = 1 [L545] return (retValue_acc); [L944] RET, EXPR isHighWaterSensorDry() [L944] tmp = isHighWaterSensorDry() [L946] COND TRUE \read(tmp) [L947] tmp___0 = 0 [L951] retValue_acc = tmp___0 [L952] return (retValue_acc); [L820] RET, EXPR isHighWaterLevel() [L820] tmp = isHighWaterLevel() [L822] COND FALSE !(\read(tmp)) [L828] FCALL processEnvironment__wrappee__base() [L859] RET processEnvironment__wrappee__highWaterSensor() [L795] RET processEnvironment() [L801] CALL __utac_acc__Specification3_spec__1() [L421] int tmp ; [L422] int tmp___0 ; [L423] int tmp___1 ; [L427] CALL, EXPR isMethaneLevelCritical() [L499] int retValue_acc ; [L502] retValue_acc = methaneLevelCritical [L503] return (retValue_acc); [L427] RET, EXPR isMethaneLevelCritical() [L427] tmp = isMethaneLevelCritical() [L429] COND FALSE !(\read(tmp)) [L433] CALL, EXPR getWaterLevel() [L531] int retValue_acc ; [L534] retValue_acc = waterLevel [L535] return (retValue_acc); [L433] RET, EXPR getWaterLevel() [L433] tmp___0 = getWaterLevel() [L435] COND FALSE !(tmp___0 == 2) [L801] RET __utac_acc__Specification3_spec__1() [L765] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-24 00:14:53,488 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef31ca80-98b6-4479-bf6b-d0b7e7a5f7e2/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-24 00:14:53,688 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef31ca80-98b6-4479-bf6b-d0b7e7a5f7e2/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-24 00:14:53,896 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef31ca80-98b6-4479-bf6b-d0b7e7a5f7e2/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 00:14:54,093 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef31ca80-98b6-4479-bf6b-d0b7e7a5f7e2/bin/uautomizer-verify-LYvppIcaGC/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)