./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product46.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_6b1c9c35-8861-44eb-b0df-4ad55efcd01b/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b1c9c35-8861-44eb-b0df-4ad55efcd01b/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_6b1c9c35-8861-44eb-b0df-4ad55efcd01b/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b1c9c35-8861-44eb-b0df-4ad55efcd01b/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product46.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b1c9c35-8861-44eb-b0df-4ad55efcd01b/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_6b1c9c35-8861-44eb-b0df-4ad55efcd01b/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 73b8e020dd9d30fdd676c81009d4f1b850aa716d63ef29ce3d475a261546f853 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 23:21:12,218 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 23:21:12,315 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b1c9c35-8861-44eb-b0df-4ad55efcd01b/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-23 23:21:12,324 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 23:21:12,325 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 23:21:12,349 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 23:21:12,350 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 23:21:12,350 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 23:21:12,351 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 23:21:12,351 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 23:21:12,351 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 23:21:12,351 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 23:21:12,351 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 23:21:12,352 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-23 23:21:12,352 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-23 23:21:12,352 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-23 23:21:12,352 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-23 23:21:12,352 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-23 23:21:12,352 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-23 23:21:12,352 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 23:21:12,352 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-23 23:21:12,353 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 23:21:12,353 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 23:21:12,353 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 23:21:12,353 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 23:21:12,353 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-23 23:21:12,353 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-23 23:21:12,353 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-23 23:21:12,353 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-23 23:21:12,353 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 23:21:12,354 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 23:21:12,354 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-23 23:21:12,354 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 23:21:12,354 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 23:21:12,354 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 23:21:12,354 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:21:12,354 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 23:21:12,354 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-11-23 23:21:12,355 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-23 23:21:12,355 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_6b1c9c35-8861-44eb-b0df-4ad55efcd01b/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 -> 73b8e020dd9d30fdd676c81009d4f1b850aa716d63ef29ce3d475a261546f853 [2024-11-23 23:21:12,723 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 23:21:12,734 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 23:21:12,736 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 23:21:12,739 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 23:21:12,739 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 23:21:12,741 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b1c9c35-8861-44eb-b0df-4ad55efcd01b/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/product-lines/minepump_spec5_product46.cil.c [2024-11-23 23:21:15,664 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b1c9c35-8861-44eb-b0df-4ad55efcd01b/bin/uautomizer-verify-LYvppIcaGC/data/483c11c9d/b66c13e98b584e25bc2e1704be88fd6a/FLAGcf32c61a9 [2024-11-23 23:21:15,985 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 23:21:15,990 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b1c9c35-8861-44eb-b0df-4ad55efcd01b/sv-benchmarks/c/product-lines/minepump_spec5_product46.cil.c [2024-11-23 23:21:16,007 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b1c9c35-8861-44eb-b0df-4ad55efcd01b/bin/uautomizer-verify-LYvppIcaGC/data/483c11c9d/b66c13e98b584e25bc2e1704be88fd6a/FLAGcf32c61a9 [2024-11-23 23:21:16,039 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b1c9c35-8861-44eb-b0df-4ad55efcd01b/bin/uautomizer-verify-LYvppIcaGC/data/483c11c9d/b66c13e98b584e25bc2e1704be88fd6a [2024-11-23 23:21:16,042 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 23:21:16,045 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 23:21:16,048 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 23:21:16,048 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 23:21:16,053 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 23:21:16,054 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:21:16" (1/1) ... [2024-11-23 23:21:16,057 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46cb583b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:21:16, skipping insertion in model container [2024-11-23 23:21:16,058 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:21:16" (1/1) ... [2024-11-23 23:21:16,104 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 23:21:16,487 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:21:16,505 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 23:21:16,515 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [49] [2024-11-23 23:21:16,517 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [101] [2024-11-23 23:21:16,518 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [206] [2024-11-23 23:21:16,518 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [572] [2024-11-23 23:21:16,518 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [670] [2024-11-23 23:21:16,518 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [705] [2024-11-23 23:21:16,518 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [714] [2024-11-23 23:21:16,518 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [923] [2024-11-23 23:21:16,602 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:21:16,626 INFO L204 MainTranslator]: Completed translation [2024-11-23 23:21:16,626 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:21:16 WrapperNode [2024-11-23 23:21:16,626 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 23:21:16,627 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 23:21:16,628 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 23:21:16,628 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 23:21:16,634 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:21:16" (1/1) ... [2024-11-23 23:21:16,644 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:21:16" (1/1) ... [2024-11-23 23:21:16,696 INFO L138 Inliner]: procedures = 57, calls = 104, calls flagged for inlining = 57, calls inlined = 106, statements flattened = 698 [2024-11-23 23:21:16,701 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 23:21:16,701 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 23:21:16,702 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 23:21:16,702 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 23:21:16,718 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:21:16" (1/1) ... [2024-11-23 23:21:16,718 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:21:16" (1/1) ... [2024-11-23 23:21:16,722 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:21:16" (1/1) ... [2024-11-23 23:21:16,738 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]. [2024-11-23 23:21:16,738 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:21:16" (1/1) ... [2024-11-23 23:21:16,738 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:21:16" (1/1) ... [2024-11-23 23:21:16,752 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:21:16" (1/1) ... [2024-11-23 23:21:16,754 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:21:16" (1/1) ... [2024-11-23 23:21:16,759 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:21:16" (1/1) ... [2024-11-23 23:21:16,761 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:21:16" (1/1) ... [2024-11-23 23:21:16,763 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:21:16" (1/1) ... [2024-11-23 23:21:16,767 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 23:21:16,768 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 23:21:16,768 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 23:21:16,768 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 23:21:16,769 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:21:16" (1/1) ... [2024-11-23 23:21:16,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 23:21:16,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b1c9c35-8861-44eb-b0df-4ad55efcd01b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:21:16,816 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b1c9c35-8861-44eb-b0df-4ad55efcd01b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 23:21:16,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b1c9c35-8861-44eb-b0df-4ad55efcd01b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-23 23:21:16,850 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 23:21:16,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 23:21:16,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 23:21:16,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 23:21:16,939 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 23:21:16,941 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 23:21:17,482 INFO L? ?]: Removed 163 outVars from TransFormulas that were not future-live. [2024-11-23 23:21:17,482 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 23:21:17,504 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 23:21:17,504 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-23 23:21:17,508 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:21:17 BoogieIcfgContainer [2024-11-23 23:21:17,508 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 23:21:17,509 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-23 23:21:17,509 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-23 23:21:17,515 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-23 23:21:17,516 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-23 23:21:17,516 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 11:21:16" (1/3) ... [2024-11-23 23:21:17,517 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7fbc85c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 11:21:17, skipping insertion in model container [2024-11-23 23:21:17,517 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-23 23:21:17,518 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:21:16" (2/3) ... [2024-11-23 23:21:17,518 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7fbc85c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 11:21:17, skipping insertion in model container [2024-11-23 23:21:17,518 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-23 23:21:17,518 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:21:17" (3/3) ... [2024-11-23 23:21:17,521 INFO L363 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product46.cil.c [2024-11-23 23:21:17,612 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-23 23:21:17,613 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-23 23:21:17,613 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-23 23:21:17,613 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-23 23:21:17,613 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-23 23:21:17,613 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-23 23:21:17,614 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-23 23:21:17,614 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-23 23:21:17,620 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 192 states, 191 states have (on average 1.350785340314136) internal successors, (258), 191 states have internal predecessors, (258), 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) [2024-11-23 23:21:17,652 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 123 [2024-11-23 23:21:17,653 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-23 23:21:17,653 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-23 23:21:17,661 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:21:17,661 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:21:17,661 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-23 23:21:17,663 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 192 states, 191 states have (on average 1.350785340314136) internal successors, (258), 191 states have internal predecessors, (258), 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) [2024-11-23 23:21:17,674 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 123 [2024-11-23 23:21:17,675 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-23 23:21:17,675 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-23 23:21:17,675 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:21:17,676 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:21:17,685 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);~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret7#1, main_~retValue_acc~0#1, main_~tmp~1#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1;" "main_#t~ret7#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret7#1;havoc main_#t~ret7#1;" "assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0;" "assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet50#1, test_#t~nondet51#1, test_#t~nondet52#1, test_#t~nondet53#1, test_~splverifierCounter~0#1, test_~tmp~9#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~9#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-11-23 23:21:17,686 INFO L749 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet50#1;test_~tmp~9#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1;" "assume !(0 != test_~tmp~9#1);" "havoc test_#t~nondet51#1;test_~tmp___0~2#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1;" "assume !(0 != test_~tmp___0~2#1);" "havoc test_#t~nondet52#1;test_~tmp___2~0#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1;" "assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1;" "assume { :end_inline_startSystem } true;" "assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret4#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~10#1;havoc isPumpRunning_~retValue_acc~10#1;isPumpRunning_~retValue_acc~10#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~10#1;" "__utac_acc__Specification5_spec__2_#t~ret4#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~10#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret4#1;havoc __utac_acc__Specification5_spec__2_#t~ret4#1;" "havoc __utac_acc__Specification5_spec__2_#t~ret4#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true;" "assume !(0 != ~pumpRunning~0);" "assume !(0 != ~systemActive~0);" "assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret5#1, __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~0#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1;" "__utac_acc__Specification5_spec__3_#t~ret5#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0#1 := __utac_acc__Specification5_spec__3_#t~ret5#1;havoc __utac_acc__Specification5_spec__3_#t~ret5#1;" "assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0#1);" "havoc __utac_acc__Specification5_spec__3_#t~ret5#1, __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true;" "assume { :end_inline_timeShift } true;" [2024-11-23 23:21:17,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:21:17,691 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2024-11-23 23:21:17,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-23 23:21:17,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320042761] [2024-11-23 23:21:17,699 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:21:17,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:21:17,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:21:17,804 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 23:21:17,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:21:17,849 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-23 23:21:17,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:21:17,853 INFO L85 PathProgramCache]: Analyzing trace with hash 988169495, now seen corresponding path program 1 times [2024-11-23 23:21:17,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-23 23:21:17,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054419082] [2024-11-23 23:21:17,853 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:21:17,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:21:17,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:21:17,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-23 23:21:17,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054419082] [2024-11-23 23:21:17,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054419082] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:21:17,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1170207629] [2024-11-23 23:21:17,946 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:21:17,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:21:17,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b1c9c35-8861-44eb-b0df-4ad55efcd01b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:21:17,952 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b1c9c35-8861-44eb-b0df-4ad55efcd01b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:21:17,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b1c9c35-8861-44eb-b0df-4ad55efcd01b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 23:21:18,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:21:18,018 INFO L256 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-23 23:21:18,020 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:21:18,057 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:21:18,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1170207629] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:21:18,089 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 23:21:18,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-11-23 23:21:18,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655393283] [2024-11-23 23:21:18,091 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 23:21:18,095 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-23 23:21:18,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-23 23:21:18,125 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:21:18,126 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:21:18,128 INFO L87 Difference]: Start difference. First operand has 192 states, 191 states have (on average 1.350785340314136) internal successors, (258), 191 states have internal predecessors, (258), 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 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2024-11-23 23:21:18,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:21:18,175 INFO L93 Difference]: Finished difference Result 186 states and 242 transitions. [2024-11-23 23:21:18,177 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 186 states and 242 transitions. [2024-11-23 23:21:18,180 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 117 [2024-11-23 23:21:18,187 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 186 states to 176 states and 231 transitions. [2024-11-23 23:21:18,188 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 176 [2024-11-23 23:21:18,189 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 176 [2024-11-23 23:21:18,190 INFO L73 IsDeterministic]: Start isDeterministic. Operand 176 states and 231 transitions. [2024-11-23 23:21:18,191 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-23 23:21:18,191 INFO L218 hiAutomatonCegarLoop]: Abstraction has 176 states and 231 transitions. [2024-11-23 23:21:18,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states and 231 transitions. [2024-11-23 23:21:18,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 176. [2024-11-23 23:21:18,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 176 states have (on average 1.3125) internal successors, (231), 175 states have internal predecessors, (231), 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) [2024-11-23 23:21:18,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 231 transitions. [2024-11-23 23:21:18,235 INFO L240 hiAutomatonCegarLoop]: Abstraction has 176 states and 231 transitions. [2024-11-23 23:21:18,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:21:18,245 INFO L425 stractBuchiCegarLoop]: Abstraction has 176 states and 231 transitions. [2024-11-23 23:21:18,245 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-23 23:21:18,245 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 176 states and 231 transitions. [2024-11-23 23:21:18,247 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 117 [2024-11-23 23:21:18,247 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-23 23:21:18,248 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-23 23:21:18,248 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:21:18,248 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:21:18,248 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);~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret7#1, main_~retValue_acc~0#1, main_~tmp~1#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1;" "main_#t~ret7#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret7#1;havoc main_#t~ret7#1;" "assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0;" "assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet50#1, test_#t~nondet51#1, test_#t~nondet52#1, test_#t~nondet53#1, test_~splverifierCounter~0#1, test_~tmp~9#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~9#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-11-23 23:21:18,249 INFO L749 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet50#1;test_~tmp~9#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1;" "assume !(0 != test_~tmp~9#1);" "havoc test_#t~nondet51#1;test_~tmp___0~2#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1;" "assume !(0 != test_~tmp___0~2#1);" "havoc test_#t~nondet52#1;test_~tmp___2~0#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1;" "assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1;" "assume { :end_inline_startSystem } true;" "assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret4#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~10#1;havoc isPumpRunning_~retValue_acc~10#1;isPumpRunning_~retValue_acc~10#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~10#1;" "__utac_acc__Specification5_spec__2_#t~ret4#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~10#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret4#1;havoc __utac_acc__Specification5_spec__2_#t~ret4#1;" "havoc __utac_acc__Specification5_spec__2_#t~ret4#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret38#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret37#1, processEnvironment__wrappee__methaneQuery_~tmp~5#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~5#1;" "assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment__wrappee__methaneQuery_#t~ret37#1, processEnvironment__wrappee__methaneQuery_~tmp~5#1;assume { :end_inline_processEnvironment__wrappee__methaneQuery } true;" "havoc processEnvironment_#t~ret38#1, processEnvironment_~tmp~6#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret5#1, __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~0#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1;" "__utac_acc__Specification5_spec__3_#t~ret5#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0#1 := __utac_acc__Specification5_spec__3_#t~ret5#1;havoc __utac_acc__Specification5_spec__3_#t~ret5#1;" "assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0#1);" "havoc __utac_acc__Specification5_spec__3_#t~ret5#1, __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true;" "assume { :end_inline_timeShift } true;" [2024-11-23 23:21:18,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:21:18,249 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2024-11-23 23:21:18,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-23 23:21:18,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199396715] [2024-11-23 23:21:18,249 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:21:18,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:21:18,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:21:18,261 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 23:21:18,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:21:18,273 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-23 23:21:18,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:21:18,274 INFO L85 PathProgramCache]: Analyzing trace with hash 2005407378, now seen corresponding path program 1 times [2024-11-23 23:21:18,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-23 23:21:18,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512920121] [2024-11-23 23:21:18,274 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:21:18,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:21:18,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:21:18,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-23 23:21:18,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512920121] [2024-11-23 23:21:18,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512920121] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:21:18,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1461597219] [2024-11-23 23:21:18,304 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:21:18,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:21:18,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b1c9c35-8861-44eb-b0df-4ad55efcd01b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:21:18,306 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b1c9c35-8861-44eb-b0df-4ad55efcd01b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:21:18,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b1c9c35-8861-44eb-b0df-4ad55efcd01b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-23 23:21:18,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:21:18,365 INFO L256 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 23:21:18,366 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:21:18,376 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:21:18,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1461597219] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:21:18,389 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 23:21:18,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-11-23 23:21:18,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012425082] [2024-11-23 23:21:18,390 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 23:21:18,390 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-23 23:21:18,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-23 23:21:18,390 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:21:18,391 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:21:18,391 INFO L87 Difference]: Start difference. First operand 176 states and 231 transitions. cyclomatic complexity: 57 Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:21:18,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:21:18,556 INFO L93 Difference]: Finished difference Result 245 states and 310 transitions. [2024-11-23 23:21:18,556 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 245 states and 310 transitions. [2024-11-23 23:21:18,559 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 168 [2024-11-23 23:21:18,561 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 245 states to 245 states and 310 transitions. [2024-11-23 23:21:18,564 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 245 [2024-11-23 23:21:18,565 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 245 [2024-11-23 23:21:18,565 INFO L73 IsDeterministic]: Start isDeterministic. Operand 245 states and 310 transitions. [2024-11-23 23:21:18,570 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-23 23:21:18,571 INFO L218 hiAutomatonCegarLoop]: Abstraction has 245 states and 310 transitions. [2024-11-23 23:21:18,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states and 310 transitions. [2024-11-23 23:21:18,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 245. [2024-11-23 23:21:18,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 245 states have (on average 1.2653061224489797) internal successors, (310), 244 states have internal predecessors, (310), 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) [2024-11-23 23:21:18,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 310 transitions. [2024-11-23 23:21:18,581 INFO L240 hiAutomatonCegarLoop]: Abstraction has 245 states and 310 transitions. [2024-11-23 23:21:18,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:21:18,583 INFO L425 stractBuchiCegarLoop]: Abstraction has 245 states and 310 transitions. [2024-11-23 23:21:18,583 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-23 23:21:18,583 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 245 states and 310 transitions. [2024-11-23 23:21:18,585 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 168 [2024-11-23 23:21:18,585 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-23 23:21:18,585 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-23 23:21:18,586 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:21:18,586 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] [2024-11-23 23:21:18,586 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);~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret7#1, main_~retValue_acc~0#1, main_~tmp~1#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1;" "main_#t~ret7#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret7#1;havoc main_#t~ret7#1;" "assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0;" "assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet50#1, test_#t~nondet51#1, test_#t~nondet52#1, test_#t~nondet53#1, test_~splverifierCounter~0#1, test_~tmp~9#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~9#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-11-23 23:21:18,587 INFO L749 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet50#1;test_~tmp~9#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1;" "assume !(0 != test_~tmp~9#1);" "havoc test_#t~nondet51#1;test_~tmp___0~2#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1;" "assume !(0 != test_~tmp___0~2#1);" "havoc test_#t~nondet52#1;test_~tmp___2~0#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1;" "assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1;" "assume { :end_inline_startSystem } true;" "assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret4#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~10#1;havoc isPumpRunning_~retValue_acc~10#1;isPumpRunning_~retValue_acc~10#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~10#1;" "__utac_acc__Specification5_spec__2_#t~ret4#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~10#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret4#1;havoc __utac_acc__Specification5_spec__2_#t~ret4#1;" "havoc __utac_acc__Specification5_spec__2_#t~ret4#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret38#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret37#1, processEnvironment__wrappee__methaneQuery_~tmp~5#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~5#1;" "assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret49#1, isHighWaterLevel_~retValue_acc~11#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~11#1;havoc isHighWaterLevel_~tmp~8#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;" "assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1;" "isHighWaterLevel_#t~ret49#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8#1 := isHighWaterLevel_#t~ret49#1;havoc isHighWaterLevel_#t~ret49#1;" "assume 0 != isHighWaterLevel_~tmp~8#1;isHighWaterLevel_~tmp___0~1#1 := 0;" "isHighWaterLevel_~retValue_acc~11#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~11#1;" "processEnvironment__wrappee__methaneQuery_#t~ret37#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret49#1, isHighWaterLevel_~retValue_acc~11#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__methaneQuery_~tmp~5#1 := processEnvironment__wrappee__methaneQuery_#t~ret37#1;havoc processEnvironment__wrappee__methaneQuery_#t~ret37#1;" "assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment__wrappee__methaneQuery_#t~ret37#1, processEnvironment__wrappee__methaneQuery_~tmp~5#1;assume { :end_inline_processEnvironment__wrappee__methaneQuery } true;" "havoc processEnvironment_#t~ret38#1, processEnvironment_~tmp~6#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret5#1, __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~0#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1;" "__utac_acc__Specification5_spec__3_#t~ret5#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0#1 := __utac_acc__Specification5_spec__3_#t~ret5#1;havoc __utac_acc__Specification5_spec__3_#t~ret5#1;" "assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0#1);" "havoc __utac_acc__Specification5_spec__3_#t~ret5#1, __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true;" "assume { :end_inline_timeShift } true;" [2024-11-23 23:21:18,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:21:18,587 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2024-11-23 23:21:18,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-23 23:21:18,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365943947] [2024-11-23 23:21:18,588 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:21:18,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:21:18,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:21:18,611 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 23:21:18,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:21:18,632 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-23 23:21:18,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:21:18,632 INFO L85 PathProgramCache]: Analyzing trace with hash -250621206, now seen corresponding path program 1 times [2024-11-23 23:21:18,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-23 23:21:18,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007889429] [2024-11-23 23:21:18,633 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:21:18,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:21:18,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:21:18,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-23 23:21:18,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007889429] [2024-11-23 23:21:18,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007889429] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:21:18,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [300848853] [2024-11-23 23:21:18,850 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:21:18,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:21:18,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b1c9c35-8861-44eb-b0df-4ad55efcd01b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:21:18,855 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b1c9c35-8861-44eb-b0df-4ad55efcd01b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:21:18,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b1c9c35-8861-44eb-b0df-4ad55efcd01b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-23 23:21:18,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:21:18,923 INFO L256 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-23 23:21:18,924 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:21:19,013 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:21:19,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [300848853] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:21:19,072 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 23:21:19,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2024-11-23 23:21:19,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869094566] [2024-11-23 23:21:19,073 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 23:21:19,073 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-23 23:21:19,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-23 23:21:19,074 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 23:21:19,074 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:21:19,074 INFO L87 Difference]: Start difference. First operand 245 states and 310 transitions. cyclomatic complexity: 67 Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:21:19,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:21:19,310 INFO L93 Difference]: Finished difference Result 480 states and 596 transitions. [2024-11-23 23:21:19,311 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 480 states and 596 transitions. [2024-11-23 23:21:19,319 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 334 [2024-11-23 23:21:19,323 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 480 states to 480 states and 596 transitions. [2024-11-23 23:21:19,323 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 480 [2024-11-23 23:21:19,324 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 480 [2024-11-23 23:21:19,325 INFO L73 IsDeterministic]: Start isDeterministic. Operand 480 states and 596 transitions. [2024-11-23 23:21:19,326 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-23 23:21:19,327 INFO L218 hiAutomatonCegarLoop]: Abstraction has 480 states and 596 transitions. [2024-11-23 23:21:19,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states and 596 transitions. [2024-11-23 23:21:19,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 480. [2024-11-23 23:21:19,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 480 states have (on average 1.2416666666666667) internal successors, (596), 479 states have internal predecessors, (596), 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) [2024-11-23 23:21:19,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 596 transitions. [2024-11-23 23:21:19,349 INFO L240 hiAutomatonCegarLoop]: Abstraction has 480 states and 596 transitions. [2024-11-23 23:21:19,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:21:19,351 INFO L425 stractBuchiCegarLoop]: Abstraction has 480 states and 596 transitions. [2024-11-23 23:21:19,351 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-23 23:21:19,351 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 480 states and 596 transitions. [2024-11-23 23:21:19,355 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 334 [2024-11-23 23:21:19,355 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-23 23:21:19,355 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-23 23:21:19,356 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:21:19,356 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:21:19,357 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);~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret7#1, main_~retValue_acc~0#1, main_~tmp~1#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1;" "main_#t~ret7#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret7#1;havoc main_#t~ret7#1;" "assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0;" "assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet50#1, test_#t~nondet51#1, test_#t~nondet52#1, test_#t~nondet53#1, test_~splverifierCounter~0#1, test_~tmp~9#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~9#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-11-23 23:21:19,357 INFO L749 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet50#1;test_~tmp~9#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1;" "assume !(0 != test_~tmp~9#1);" "havoc test_#t~nondet51#1;test_~tmp___0~2#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1;" "assume !(0 != test_~tmp___0~2#1);" "havoc test_#t~nondet52#1;test_~tmp___2~0#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1;" "assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1;" "assume { :end_inline_startSystem } true;" "assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret4#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~10#1;havoc isPumpRunning_~retValue_acc~10#1;isPumpRunning_~retValue_acc~10#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~10#1;" "__utac_acc__Specification5_spec__2_#t~ret4#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~10#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret4#1;havoc __utac_acc__Specification5_spec__2_#t~ret4#1;" "havoc __utac_acc__Specification5_spec__2_#t~ret4#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret38#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret37#1, processEnvironment__wrappee__methaneQuery_~tmp~5#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~5#1;" "assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret49#1, isHighWaterLevel_~retValue_acc~11#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~11#1;havoc isHighWaterLevel_~tmp~8#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;" "assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1;" "isHighWaterLevel_#t~ret49#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8#1 := isHighWaterLevel_#t~ret49#1;havoc isHighWaterLevel_#t~ret49#1;" "assume 0 != isHighWaterLevel_~tmp~8#1;isHighWaterLevel_~tmp___0~1#1 := 0;" "isHighWaterLevel_~retValue_acc~11#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~11#1;" "processEnvironment__wrappee__methaneQuery_#t~ret37#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret49#1, isHighWaterLevel_~retValue_acc~11#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__methaneQuery_~tmp~5#1 := processEnvironment__wrappee__methaneQuery_#t~ret37#1;havoc processEnvironment__wrappee__methaneQuery_#t~ret37#1;" "assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment__wrappee__methaneQuery_#t~ret37#1, processEnvironment__wrappee__methaneQuery_~tmp~5#1;assume { :end_inline_processEnvironment__wrappee__methaneQuery } true;" "havoc processEnvironment_#t~ret38#1, processEnvironment_~tmp~6#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret5#1, __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~0#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1;" "__utac_acc__Specification5_spec__3_#t~ret5#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0#1 := __utac_acc__Specification5_spec__3_#t~ret5#1;havoc __utac_acc__Specification5_spec__3_#t~ret5#1;" "assume 2 != __utac_acc__Specification5_spec__3_~tmp~0#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~10#1;havoc isPumpRunning_~retValue_acc~10#1;isPumpRunning_~retValue_acc~10#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~10#1;" "__utac_acc__Specification5_spec__3_#t~ret6#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~10#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~0#1 := __utac_acc__Specification5_spec__3_#t~ret6#1;havoc __utac_acc__Specification5_spec__3_#t~ret6#1;" "assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0#1);" "havoc __utac_acc__Specification5_spec__3_#t~ret5#1, __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true;" "assume { :end_inline_timeShift } true;" [2024-11-23 23:21:19,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:21:19,358 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2024-11-23 23:21:19,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-23 23:21:19,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722869056] [2024-11-23 23:21:19,358 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:21:19,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:21:19,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:21:19,368 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 23:21:19,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:21:19,378 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-23 23:21:19,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:21:19,379 INFO L85 PathProgramCache]: Analyzing trace with hash -349812891, now seen corresponding path program 1 times [2024-11-23 23:21:19,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-23 23:21:19,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060554271] [2024-11-23 23:21:19,379 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:21:19,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:21:19,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:21:19,398 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 23:21:19,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:21:19,417 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-23 23:21:19,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:21:19,418 INFO L85 PathProgramCache]: Analyzing trace with hash -1161853092, now seen corresponding path program 1 times [2024-11-23 23:21:19,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-23 23:21:19,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930984680] [2024-11-23 23:21:19,418 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:21:19,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:21:19,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:21:19,447 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 23:21:19,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:21:19,480 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-23 23:21:20,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:21:20,853 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 23:21:20,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:21:20,929 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.11 11:21:20 BoogieIcfgContainer [2024-11-23 23:21:20,932 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-23 23:21:20,933 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-23 23:21:20,933 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-23 23:21:20,933 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-23 23:21:20,934 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:21:17" (3/4) ... [2024-11-23 23:21:20,936 INFO L143 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-23 23:21:21,005 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b1c9c35-8861-44eb-b0df-4ad55efcd01b/bin/uautomizer-verify-LYvppIcaGC/witness.graphml [2024-11-23 23:21:21,005 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-23 23:21:21,008 INFO L158 Benchmark]: Toolchain (without parser) took 4960.93ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 93.5MB in the beginning and 143.4MB in the end (delta: -49.9MB). Peak memory consumption was 183.7MB. Max. memory is 16.1GB. [2024-11-23 23:21:21,008 INFO L158 Benchmark]: CDTParser took 0.46ms. Allocated memory is still 167.8MB. Free memory is still 104.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 23:21:21,009 INFO L158 Benchmark]: CACSL2BoogieTranslator took 579.24ms. Allocated memory is still 117.4MB. Free memory was 93.1MB in the beginning and 74.7MB in the end (delta: 18.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-23 23:21:21,009 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.56ms. Allocated memory is still 117.4MB. Free memory was 74.7MB in the beginning and 71.5MB in the end (delta: 3.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 23:21:21,009 INFO L158 Benchmark]: Boogie Preprocessor took 65.22ms. Allocated memory is still 117.4MB. Free memory was 71.5MB in the beginning and 68.2MB in the end (delta: 3.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-23 23:21:21,010 INFO L158 Benchmark]: RCFGBuilder took 740.33ms. Allocated memory is still 117.4MB. Free memory was 68.2MB in the beginning and 39.2MB in the end (delta: 29.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-23 23:21:21,010 INFO L158 Benchmark]: BuchiAutomizer took 3423.67ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 39.2MB in the beginning and 146.0MB in the end (delta: -106.8MB). Peak memory consumption was 133.4MB. Max. memory is 16.1GB. [2024-11-23 23:21:21,011 INFO L158 Benchmark]: Witness Printer took 71.90ms. Allocated memory is still 352.3MB. Free memory was 146.0MB in the beginning and 143.4MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 23:21:21,014 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46ms. Allocated memory is still 167.8MB. Free memory is still 104.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 579.24ms. Allocated memory is still 117.4MB. Free memory was 93.1MB in the beginning and 74.7MB in the end (delta: 18.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.56ms. Allocated memory is still 117.4MB. Free memory was 74.7MB in the beginning and 71.5MB in the end (delta: 3.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 65.22ms. Allocated memory is still 117.4MB. Free memory was 71.5MB in the beginning and 68.2MB in the end (delta: 3.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 740.33ms. Allocated memory is still 117.4MB. Free memory was 68.2MB in the beginning and 39.2MB in the end (delta: 29.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 3423.67ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 39.2MB in the beginning and 146.0MB in the end (delta: -106.8MB). Peak memory consumption was 133.4MB. Max. memory is 16.1GB. * Witness Printer took 71.90ms. Allocated memory is still 352.3MB. Free memory was 146.0MB in the beginning and 143.4MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [49] - GenericResultAtLocation [Line: 101]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [101] - GenericResultAtLocation [Line: 206]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [206] - GenericResultAtLocation [Line: 572]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [572] - GenericResultAtLocation [Line: 670]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [670] - GenericResultAtLocation [Line: 705]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [705] - GenericResultAtLocation [Line: 714]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [714] - GenericResultAtLocation [Line: 923]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [923] * 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 8 locations. The remainder module has 480 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.2s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 2.5s. Construction of modules took 0.2s. 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, 800 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 800 mSDsluCounter, 1672 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 985 mSDsCounter, 62 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 155 IncrementalHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 62 mSolverCounterUnsat, 687 mSDtfsCounter, 155 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc0 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: 936]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L53] int switchedOnBeforeTS ; [L102] int cleanupTimeShifts = 4; [L376] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L577] int waterLevel = 1; [L578] int methaneLevelCritical = 0; [L718] int pumpRunning = 0; [L719] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L184] int retValue_acc ; [L185] int tmp ; [L189] FCALL select_helpers() [L190] FCALL select_features() [L191] CALL, EXPR valid_product() [L697] int retValue_acc ; [L700] retValue_acc = 1 [L701] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L191] RET, EXPR valid_product() [L191] tmp = valid_product() [L193] COND TRUE \read(tmp) [L195] FCALL setup() [L196] CALL runTest() [L174] CALL __utac_acc__Specification5_spec__1() [L58] switchedOnBeforeTS = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L174] RET __utac_acc__Specification5_spec__1() [L175] CALL test() [L925] int splverifierCounter ; [L926] int tmp ; [L927] int tmp___0 ; [L928] int tmp___1 ; [L929] int tmp___2 ; [L932] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] Loop: [L936] COND TRUE splverifierCounter < 4 [L942] tmp = __VERIFIER_nondet_int() [L944] COND FALSE !(\read(tmp)) [L952] tmp___0 = __VERIFIER_nondet_int() [L954] COND FALSE !(\read(tmp___0)) [L962] tmp___2 = __VERIFIER_nondet_int() [L964] COND TRUE \read(tmp___2) [L966] CALL startSystem() [L919] systemActive = 1 [L966] RET startSystem() [L979] CALL timeShift() [L726] CALL __utac_acc__Specification5_spec__2() [L67] CALL, EXPR isPumpRunning() [L852] int retValue_acc ; [L855] retValue_acc = pumpRunning [L856] return (retValue_acc); [L67] RET, EXPR isPumpRunning() [L67] switchedOnBeforeTS = isPumpRunning() [L726] RET __utac_acc__Specification5_spec__2() [L728] COND FALSE !(\read(pumpRunning)) [L735] COND TRUE \read(systemActive) [L737] CALL processEnvironment() [L783] int tmp ; [L786] COND FALSE !(\read(pumpRunning)) [L801] CALL processEnvironment__wrappee__methaneQuery() [L757] int tmp ; [L760] COND TRUE ! pumpRunning [L762] CALL, EXPR isHighWaterLevel() [L897] int retValue_acc ; [L898] int tmp ; [L899] int tmp___0 ; [L903] CALL, EXPR isHighWaterSensorDry() [L657] int retValue_acc ; [L660] COND TRUE waterLevel < 2 [L661] retValue_acc = 1 [L662] return (retValue_acc); [L903] RET, EXPR isHighWaterSensorDry() [L903] tmp = isHighWaterSensorDry() [L905] COND TRUE \read(tmp) [L906] tmp___0 = 0 [L910] retValue_acc = tmp___0 [L911] return (retValue_acc); [L762] RET, EXPR isHighWaterLevel() [L762] tmp = isHighWaterLevel() [L764] COND FALSE !(\read(tmp)) [L770] FCALL processEnvironment__wrappee__base() [L801] RET processEnvironment__wrappee__methaneQuery() [L737] RET processEnvironment() [L743] CALL __utac_acc__Specification5_spec__3() [L73] int tmp ; [L74] int tmp___0 ; [L78] CALL, EXPR getWaterLevel() [L648] int retValue_acc ; [L651] retValue_acc = waterLevel [L652] return (retValue_acc); [L78] RET, EXPR getWaterLevel() [L78] tmp = getWaterLevel() [L80] COND TRUE tmp != 2 [L82] CALL, EXPR isPumpRunning() [L852] int retValue_acc ; [L855] retValue_acc = pumpRunning [L856] return (retValue_acc); [L82] RET, EXPR isPumpRunning() [L82] tmp___0 = isPumpRunning() [L84] COND FALSE !(\read(tmp___0)) [L743] RET __utac_acc__Specification5_spec__3() [L979] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 936]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L53] int switchedOnBeforeTS ; [L102] int cleanupTimeShifts = 4; [L376] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L577] int waterLevel = 1; [L578] int methaneLevelCritical = 0; [L718] int pumpRunning = 0; [L719] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L184] int retValue_acc ; [L185] int tmp ; [L189] FCALL select_helpers() [L190] FCALL select_features() [L191] CALL, EXPR valid_product() [L697] int retValue_acc ; [L700] retValue_acc = 1 [L701] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L191] RET, EXPR valid_product() [L191] tmp = valid_product() [L193] COND TRUE \read(tmp) [L195] FCALL setup() [L196] CALL runTest() [L174] CALL __utac_acc__Specification5_spec__1() [L58] switchedOnBeforeTS = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L174] RET __utac_acc__Specification5_spec__1() [L175] CALL test() [L925] int splverifierCounter ; [L926] int tmp ; [L927] int tmp___0 ; [L928] int tmp___1 ; [L929] int tmp___2 ; [L932] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] Loop: [L936] COND TRUE splverifierCounter < 4 [L942] tmp = __VERIFIER_nondet_int() [L944] COND FALSE !(\read(tmp)) [L952] tmp___0 = __VERIFIER_nondet_int() [L954] COND FALSE !(\read(tmp___0)) [L962] tmp___2 = __VERIFIER_nondet_int() [L964] COND TRUE \read(tmp___2) [L966] CALL startSystem() [L919] systemActive = 1 [L966] RET startSystem() [L979] CALL timeShift() [L726] CALL __utac_acc__Specification5_spec__2() [L67] CALL, EXPR isPumpRunning() [L852] int retValue_acc ; [L855] retValue_acc = pumpRunning [L856] return (retValue_acc); [L67] RET, EXPR isPumpRunning() [L67] switchedOnBeforeTS = isPumpRunning() [L726] RET __utac_acc__Specification5_spec__2() [L728] COND FALSE !(\read(pumpRunning)) [L735] COND TRUE \read(systemActive) [L737] CALL processEnvironment() [L783] int tmp ; [L786] COND FALSE !(\read(pumpRunning)) [L801] CALL processEnvironment__wrappee__methaneQuery() [L757] int tmp ; [L760] COND TRUE ! pumpRunning [L762] CALL, EXPR isHighWaterLevel() [L897] int retValue_acc ; [L898] int tmp ; [L899] int tmp___0 ; [L903] CALL, EXPR isHighWaterSensorDry() [L657] int retValue_acc ; [L660] COND TRUE waterLevel < 2 [L661] retValue_acc = 1 [L662] return (retValue_acc); [L903] RET, EXPR isHighWaterSensorDry() [L903] tmp = isHighWaterSensorDry() [L905] COND TRUE \read(tmp) [L906] tmp___0 = 0 [L910] retValue_acc = tmp___0 [L911] return (retValue_acc); [L762] RET, EXPR isHighWaterLevel() [L762] tmp = isHighWaterLevel() [L764] COND FALSE !(\read(tmp)) [L770] FCALL processEnvironment__wrappee__base() [L801] RET processEnvironment__wrappee__methaneQuery() [L737] RET processEnvironment() [L743] CALL __utac_acc__Specification5_spec__3() [L73] int tmp ; [L74] int tmp___0 ; [L78] CALL, EXPR getWaterLevel() [L648] int retValue_acc ; [L651] retValue_acc = waterLevel [L652] return (retValue_acc); [L78] RET, EXPR getWaterLevel() [L78] tmp = getWaterLevel() [L80] COND TRUE tmp != 2 [L82] CALL, EXPR isPumpRunning() [L852] int retValue_acc ; [L855] retValue_acc = pumpRunning [L856] return (retValue_acc); [L82] RET, EXPR isPumpRunning() [L82] tmp___0 = isPumpRunning() [L84] COND FALSE !(\read(tmp___0)) [L743] RET __utac_acc__Specification5_spec__3() [L979] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-23 23:21:21,038 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b1c9c35-8861-44eb-b0df-4ad55efcd01b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-23 23:21:21,235 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b1c9c35-8861-44eb-b0df-4ad55efcd01b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-23 23:21:21,439 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b1c9c35-8861-44eb-b0df-4ad55efcd01b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-23 23:21:21,639 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b1c9c35-8861-44eb-b0df-4ad55efcd01b/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)