./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product36.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_bab5a01f-a243-46c9-a4ce-bb4e791f8316/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab5a01f-a243-46c9-a4ce-bb4e791f8316/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_bab5a01f-a243-46c9-a4ce-bb4e791f8316/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab5a01f-a243-46c9-a4ce-bb4e791f8316/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product36.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab5a01f-a243-46c9-a4ce-bb4e791f8316/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_bab5a01f-a243-46c9-a4ce-bb4e791f8316/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 1849026681bb840017399851b7fbd7074a9bb56e2104927ac4a62c52d8de2e86 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 22:34:48,041 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 22:34:48,138 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab5a01f-a243-46c9-a4ce-bb4e791f8316/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-23 22:34:48,145 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 22:34:48,145 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 22:34:48,180 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 22:34:48,181 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 22:34:48,182 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 22:34:48,182 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 22:34:48,183 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 22:34:48,184 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 22:34:48,184 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 22:34:48,184 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 22:34:48,185 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-23 22:34:48,185 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-23 22:34:48,185 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-23 22:34:48,185 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-23 22:34:48,185 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-23 22:34:48,185 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-23 22:34:48,186 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 22:34:48,186 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-23 22:34:48,186 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 22:34:48,186 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 22:34:48,186 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 22:34:48,186 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 22:34:48,186 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-23 22:34:48,187 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-23 22:34:48,187 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-23 22:34:48,187 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-23 22:34:48,187 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 22:34:48,187 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 22:34:48,187 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-23 22:34:48,188 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 22:34:48,188 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 22:34:48,188 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 22:34:48,188 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 22:34:48,189 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 22:34:48,189 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-11-23 22:34:48,189 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-23 22:34:48,189 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_bab5a01f-a243-46c9-a4ce-bb4e791f8316/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 -> 1849026681bb840017399851b7fbd7074a9bb56e2104927ac4a62c52d8de2e86 [2024-11-23 22:34:48,507 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 22:34:48,520 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 22:34:48,522 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 22:34:48,524 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 22:34:48,524 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 22:34:48,526 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab5a01f-a243-46c9-a4ce-bb4e791f8316/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/product-lines/minepump_spec2_product36.cil.c [2024-11-23 22:34:51,575 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab5a01f-a243-46c9-a4ce-bb4e791f8316/bin/uautomizer-verify-LYvppIcaGC/data/1200768be/5ebf9d7e554f4436956bcd6c2d207282/FLAGa4c8db1c6 [2024-11-23 22:34:51,936 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 22:34:51,937 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab5a01f-a243-46c9-a4ce-bb4e791f8316/sv-benchmarks/c/product-lines/minepump_spec2_product36.cil.c [2024-11-23 22:34:51,954 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab5a01f-a243-46c9-a4ce-bb4e791f8316/bin/uautomizer-verify-LYvppIcaGC/data/1200768be/5ebf9d7e554f4436956bcd6c2d207282/FLAGa4c8db1c6 [2024-11-23 22:34:51,979 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab5a01f-a243-46c9-a4ce-bb4e791f8316/bin/uautomizer-verify-LYvppIcaGC/data/1200768be/5ebf9d7e554f4436956bcd6c2d207282 [2024-11-23 22:34:51,982 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 22:34:51,984 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 22:34:51,985 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 22:34:51,985 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 22:34:51,994 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 22:34:51,995 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:34:51" (1/1) ... [2024-11-23 22:34:51,998 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b73cb5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:51, skipping insertion in model container [2024-11-23 22:34:51,999 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:34:51" (1/1) ... [2024-11-23 22:34:52,046 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 22:34:52,357 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 22:34:52,369 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 22:34:52,377 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [49] [2024-11-23 22:34:52,379 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [150] [2024-11-23 22:34:52,379 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [516] [2024-11-23 22:34:52,379 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [554] [2024-11-23 22:34:52,379 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [655] [2024-11-23 22:34:52,380 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [836] [2024-11-23 22:34:52,380 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [905] [2024-11-23 22:34:52,380 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [914] [2024-11-23 22:34:52,457 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 22:34:52,481 INFO L204 MainTranslator]: Completed translation [2024-11-23 22:34:52,482 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:52 WrapperNode [2024-11-23 22:34:52,482 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 22:34:52,483 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 22:34:52,483 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 22:34:52,483 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 22:34:52,493 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:52" (1/1) ... [2024-11-23 22:34:52,505 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:52" (1/1) ... [2024-11-23 22:34:52,543 INFO L138 Inliner]: procedures = 55, calls = 98, calls flagged for inlining = 51, calls inlined = 54, statements flattened = 363 [2024-11-23 22:34:52,544 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 22:34:52,545 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 22:34:52,545 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 22:34:52,545 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 22:34:52,554 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:52" (1/1) ... [2024-11-23 22:34:52,554 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:52" (1/1) ... [2024-11-23 22:34:52,559 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:52" (1/1) ... [2024-11-23 22:34:52,581 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 22:34:52,585 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:52" (1/1) ... [2024-11-23 22:34:52,585 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:52" (1/1) ... [2024-11-23 22:34:52,596 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:52" (1/1) ... [2024-11-23 22:34:52,598 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:52" (1/1) ... [2024-11-23 22:34:52,605 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:52" (1/1) ... [2024-11-23 22:34:52,606 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:52" (1/1) ... [2024-11-23 22:34:52,612 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:52" (1/1) ... [2024-11-23 22:34:52,614 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 22:34:52,615 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 22:34:52,615 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 22:34:52,615 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 22:34:52,616 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:52" (1/1) ... [2024-11-23 22:34:52,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 22:34:52,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab5a01f-a243-46c9-a4ce-bb4e791f8316/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:34:52,653 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab5a01f-a243-46c9-a4ce-bb4e791f8316/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 22:34:52,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab5a01f-a243-46c9-a4ce-bb4e791f8316/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-23 22:34:52,690 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 22:34:52,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 22:34:52,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 22:34:52,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 22:34:52,767 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 22:34:52,769 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 22:34:53,130 INFO L? ?]: Removed 73 outVars from TransFormulas that were not future-live. [2024-11-23 22:34:53,130 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 22:34:53,141 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 22:34:53,141 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-23 22:34:53,141 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:34:53 BoogieIcfgContainer [2024-11-23 22:34:53,141 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 22:34:53,142 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-23 22:34:53,142 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-23 22:34:53,148 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-23 22:34:53,148 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-23 22:34:53,149 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 10:34:51" (1/3) ... [2024-11-23 22:34:53,150 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@674b475a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 10:34:53, skipping insertion in model container [2024-11-23 22:34:53,150 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-23 22:34:53,150 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:52" (2/3) ... [2024-11-23 22:34:53,150 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@674b475a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 10:34:53, skipping insertion in model container [2024-11-23 22:34:53,150 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-23 22:34:53,150 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:34:53" (3/3) ... [2024-11-23 22:34:53,151 INFO L363 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product36.cil.c [2024-11-23 22:34:53,206 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-23 22:34:53,207 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-23 22:34:53,208 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-23 22:34:53,208 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-23 22:34:53,208 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-23 22:34:53,208 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-23 22:34:53,208 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-23 22:34:53,208 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-23 22:34:53,215 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 115 states, 114 states have (on average 1.3859649122807018) internal successors, (158), 114 states have internal predecessors, (158), 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 22:34:53,237 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2024-11-23 22:34:53,237 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-23 22:34:53,237 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-23 22:34:53,246 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:34:53,246 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:34:53,246 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-23 22:34:53,247 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 115 states, 114 states have (on average 1.3859649122807018) internal successors, (158), 114 states have internal predecessors, (158), 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 22:34:53,253 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2024-11-23 22:34:53,253 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-23 22:34:53,253 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-23 22:34:53,254 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:34:53,254 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:34:53,259 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret33#1, main_~retValue_acc~8#1, main_~tmp~3#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~3#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~7#1;havoc valid_product_~retValue_acc~7#1;valid_product_~retValue_acc~7#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~7#1;" "main_#t~ret33#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~7#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret33#1;havoc main_#t~ret33#1;" "assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0;" "assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet45#1, test_#t~nondet46#1, test_#t~nondet47#1, test_#t~nondet48#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-11-23 22:34:53,260 INFO L749 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet45#1;test_~tmp~6#1 := test_#t~nondet45#1;havoc test_#t~nondet45#1;" "assume !(0 != test_~tmp~6#1);" "havoc test_#t~nondet46#1;test_~tmp___0~1#1 := test_#t~nondet46#1;havoc test_#t~nondet46#1;" "assume !(0 != test_~tmp___0~1#1);" "havoc test_#t~nondet47#1;test_~tmp___2~0#1 := test_#t~nondet47#1;havoc test_#t~nondet47#1;" "assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet48#1;test_~tmp___1~0#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1;" "assume !(0 != test_~tmp___1~0#1);" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume !(0 != ~systemActive~0);" "assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret49#1, __utac_acc__Specification2_spec__2_#t~ret50#1, __utac_acc__Specification2_spec__2_~tmp~7#1, __utac_acc__Specification2_spec__2_~tmp___0~2#1;havoc __utac_acc__Specification2_spec__2_~tmp~7#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1;" "__utac_acc__Specification2_spec__2_#t~ret49#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~7#1 := __utac_acc__Specification2_spec__2_#t~ret49#1;havoc __utac_acc__Specification2_spec__2_#t~ret49#1;" "assume !(0 != __utac_acc__Specification2_spec__2_~tmp~7#1);~methAndRunningLastTime~0 := 0;" "havoc __utac_acc__Specification2_spec__2_#t~ret49#1, __utac_acc__Specification2_spec__2_#t~ret50#1, __utac_acc__Specification2_spec__2_~tmp~7#1, __utac_acc__Specification2_spec__2_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification2_spec__2 } true;" "assume { :end_inline_timeShift } true;" [2024-11-23 22:34:53,264 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:34:53,264 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2024-11-23 22:34:53,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-23 22:34:53,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886327456] [2024-11-23 22:34:53,270 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:34:53,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:34:53,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 22:34:53,371 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 22:34:53,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 22:34:53,412 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-23 22:34:53,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:34:53,416 INFO L85 PathProgramCache]: Analyzing trace with hash -123867997, now seen corresponding path program 1 times [2024-11-23 22:34:53,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-23 22:34:53,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938510771] [2024-11-23 22:34:53,416 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:34:53,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:34:53,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 22:34:53,433 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 22:34:53,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 22:34:53,476 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-23 22:34:53,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:34:53,478 INFO L85 PathProgramCache]: Analyzing trace with hash -286155380, now seen corresponding path program 1 times [2024-11-23 22:34:53,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-23 22:34:53,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180485570] [2024-11-23 22:34:53,478 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:34:53,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:34:53,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:34:53,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-23 22:34:53,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180485570] [2024-11-23 22:34:53,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180485570] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:34:53,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1641473814] [2024-11-23 22:34:53,798 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:34:53,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:34:53,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab5a01f-a243-46c9-a4ce-bb4e791f8316/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:34:53,802 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab5a01f-a243-46c9-a4ce-bb4e791f8316/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:34:53,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab5a01f-a243-46c9-a4ce-bb4e791f8316/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 22:34:53,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:34:53,904 INFO L256 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-23 22:34:53,906 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:34:54,001 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:34:54,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1641473814] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 22:34:54,087 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 22:34:54,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 2, 2] total 6 [2024-11-23 22:34:54,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147928962] [2024-11-23 22:34:54,088 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 22:34:54,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-23 22:34:54,233 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 22:34:54,233 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-23 22:34:54,235 INFO L87 Difference]: Start difference. First operand has 115 states, 114 states have (on average 1.3859649122807018) internal successors, (158), 114 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 6 states have internal predecessors, (43), 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 22:34:54,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:34:54,419 INFO L93 Difference]: Finished difference Result 274 states and 361 transitions. [2024-11-23 22:34:54,420 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 274 states and 361 transitions. [2024-11-23 22:34:54,426 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 175 [2024-11-23 22:34:54,438 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 274 states to 244 states and 331 transitions. [2024-11-23 22:34:54,439 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 244 [2024-11-23 22:34:54,441 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 244 [2024-11-23 22:34:54,443 INFO L73 IsDeterministic]: Start isDeterministic. Operand 244 states and 331 transitions. [2024-11-23 22:34:54,444 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-23 22:34:54,445 INFO L218 hiAutomatonCegarLoop]: Abstraction has 244 states and 331 transitions. [2024-11-23 22:34:54,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states and 331 transitions. [2024-11-23 22:34:54,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 152. [2024-11-23 22:34:54,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 152 states have (on average 1.355263157894737) internal successors, (206), 151 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:34:54,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 206 transitions. [2024-11-23 22:34:54,492 INFO L240 hiAutomatonCegarLoop]: Abstraction has 152 states and 206 transitions. [2024-11-23 22:34:54,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 22:34:54,496 INFO L425 stractBuchiCegarLoop]: Abstraction has 152 states and 206 transitions. [2024-11-23 22:34:54,497 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-23 22:34:54,498 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 152 states and 206 transitions. [2024-11-23 22:34:54,502 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 107 [2024-11-23 22:34:54,505 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-23 22:34:54,506 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-23 22:34:54,506 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:34:54,506 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] [2024-11-23 22:34:54,507 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret33#1, main_~retValue_acc~8#1, main_~tmp~3#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~3#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~7#1;havoc valid_product_~retValue_acc~7#1;valid_product_~retValue_acc~7#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~7#1;" "main_#t~ret33#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~7#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret33#1;havoc main_#t~ret33#1;" "assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0;" "assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet45#1, test_#t~nondet46#1, test_#t~nondet47#1, test_#t~nondet48#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-11-23 22:34:54,507 INFO L749 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet45#1;test_~tmp~6#1 := test_#t~nondet45#1;havoc test_#t~nondet45#1;" "assume !(0 != test_~tmp~6#1);" "havoc test_#t~nondet46#1;test_~tmp___0~1#1 := test_#t~nondet46#1;havoc test_#t~nondet46#1;" "assume !(0 != test_~tmp___0~1#1);" "havoc test_#t~nondet47#1;test_~tmp___2~0#1 := test_#t~nondet47#1;havoc test_#t~nondet47#1;" "assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet48#1;test_~tmp___1~0#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1;" "assume !(0 != test_~tmp___1~0#1);" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret34#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1;" "assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment_#t~ret34#1, processEnvironment_~tmp~4#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret49#1, __utac_acc__Specification2_spec__2_#t~ret50#1, __utac_acc__Specification2_spec__2_~tmp~7#1, __utac_acc__Specification2_spec__2_~tmp___0~2#1;havoc __utac_acc__Specification2_spec__2_~tmp~7#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1;" "__utac_acc__Specification2_spec__2_#t~ret49#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~7#1 := __utac_acc__Specification2_spec__2_#t~ret49#1;havoc __utac_acc__Specification2_spec__2_#t~ret49#1;" "assume !(0 != __utac_acc__Specification2_spec__2_~tmp~7#1);~methAndRunningLastTime~0 := 0;" "havoc __utac_acc__Specification2_spec__2_#t~ret49#1, __utac_acc__Specification2_spec__2_#t~ret50#1, __utac_acc__Specification2_spec__2_~tmp~7#1, __utac_acc__Specification2_spec__2_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification2_spec__2 } true;" "assume { :end_inline_timeShift } true;" [2024-11-23 22:34:54,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:34:54,511 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2024-11-23 22:34:54,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-23 22:34:54,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821563486] [2024-11-23 22:34:54,511 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:34:54,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:34:54,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 22:34:54,524 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 22:34:54,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 22:34:54,533 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-23 22:34:54,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:34:54,534 INFO L85 PathProgramCache]: Analyzing trace with hash 370244001, now seen corresponding path program 1 times [2024-11-23 22:34:54,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-23 22:34:54,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376109248] [2024-11-23 22:34:54,534 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:34:54,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:34:54,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:34:54,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-23 22:34:54,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376109248] [2024-11-23 22:34:54,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376109248] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:34:54,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1891270484] [2024-11-23 22:34:54,576 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:34:54,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:34:54,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab5a01f-a243-46c9-a4ce-bb4e791f8316/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:34:54,579 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab5a01f-a243-46c9-a4ce-bb4e791f8316/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:34:54,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab5a01f-a243-46c9-a4ce-bb4e791f8316/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-23 22:34:54,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:34:54,633 INFO L256 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 22:34:54,634 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:34:54,642 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:34:54,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1891270484] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 22:34:54,650 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 22:34:54,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-11-23 22:34:54,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708759669] [2024-11-23 22:34:54,650 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 22:34:54,650 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-23 22:34:54,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-23 22:34:54,651 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:34:54,651 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:34:54,652 INFO L87 Difference]: Start difference. First operand 152 states and 206 transitions. cyclomatic complexity: 57 Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 22:34:54,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:34:54,734 INFO L93 Difference]: Finished difference Result 201 states and 262 transitions. [2024-11-23 22:34:54,734 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 201 states and 262 transitions. [2024-11-23 22:34:54,736 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 145 [2024-11-23 22:34:54,741 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 201 states to 201 states and 262 transitions. [2024-11-23 22:34:54,741 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 201 [2024-11-23 22:34:54,741 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 201 [2024-11-23 22:34:54,742 INFO L73 IsDeterministic]: Start isDeterministic. Operand 201 states and 262 transitions. [2024-11-23 22:34:54,742 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-23 22:34:54,743 INFO L218 hiAutomatonCegarLoop]: Abstraction has 201 states and 262 transitions. [2024-11-23 22:34:54,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states and 262 transitions. [2024-11-23 22:34:54,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 201. [2024-11-23 22:34:54,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 201 states have (on average 1.3034825870646767) internal successors, (262), 200 states have internal predecessors, (262), 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 22:34:54,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 262 transitions. [2024-11-23 22:34:54,786 INFO L240 hiAutomatonCegarLoop]: Abstraction has 201 states and 262 transitions. [2024-11-23 22:34:54,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:34:54,787 INFO L425 stractBuchiCegarLoop]: Abstraction has 201 states and 262 transitions. [2024-11-23 22:34:54,787 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-23 22:34:54,787 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 201 states and 262 transitions. [2024-11-23 22:34:54,789 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 145 [2024-11-23 22:34:54,789 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-23 22:34:54,789 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-23 22:34:54,790 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:34:54,790 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] [2024-11-23 22:34:54,790 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret33#1, main_~retValue_acc~8#1, main_~tmp~3#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~3#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~7#1;havoc valid_product_~retValue_acc~7#1;valid_product_~retValue_acc~7#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~7#1;" "main_#t~ret33#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~7#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret33#1;havoc main_#t~ret33#1;" "assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0;" "assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet45#1, test_#t~nondet46#1, test_#t~nondet47#1, test_#t~nondet48#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-11-23 22:34:54,790 INFO L749 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet45#1;test_~tmp~6#1 := test_#t~nondet45#1;havoc test_#t~nondet45#1;" "assume !(0 != test_~tmp~6#1);" "havoc test_#t~nondet46#1;test_~tmp___0~1#1 := test_#t~nondet46#1;havoc test_#t~nondet46#1;" "assume !(0 != test_~tmp___0~1#1);" "havoc test_#t~nondet47#1;test_~tmp___2~0#1 := test_#t~nondet47#1;havoc test_#t~nondet47#1;" "assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet48#1;test_~tmp___1~0#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1;" "assume !(0 != test_~tmp___1~0#1);" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret34#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1;" "assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret44#1, isHighWaterLevel_~retValue_acc~11#1, isHighWaterLevel_~tmp~5#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~11#1;havoc isHighWaterLevel_~tmp~5#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;" "assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1;" "isHighWaterLevel_#t~ret44#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~5#1 := isHighWaterLevel_#t~ret44#1;havoc isHighWaterLevel_#t~ret44#1;" "assume 0 != isHighWaterLevel_~tmp~5#1;isHighWaterLevel_~tmp___0~0#1 := 0;" "isHighWaterLevel_~retValue_acc~11#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~11#1;" "processEnvironment_#t~ret34#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret44#1, isHighWaterLevel_~retValue_acc~11#1, isHighWaterLevel_~tmp~5#1, isHighWaterLevel_~tmp___0~0#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~4#1 := processEnvironment_#t~ret34#1;havoc processEnvironment_#t~ret34#1;" "assume !(0 != processEnvironment_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment_#t~ret34#1, processEnvironment_~tmp~4#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret49#1, __utac_acc__Specification2_spec__2_#t~ret50#1, __utac_acc__Specification2_spec__2_~tmp~7#1, __utac_acc__Specification2_spec__2_~tmp___0~2#1;havoc __utac_acc__Specification2_spec__2_~tmp~7#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1;" "__utac_acc__Specification2_spec__2_#t~ret49#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~7#1 := __utac_acc__Specification2_spec__2_#t~ret49#1;havoc __utac_acc__Specification2_spec__2_#t~ret49#1;" "assume !(0 != __utac_acc__Specification2_spec__2_~tmp~7#1);~methAndRunningLastTime~0 := 0;" "havoc __utac_acc__Specification2_spec__2_#t~ret49#1, __utac_acc__Specification2_spec__2_#t~ret50#1, __utac_acc__Specification2_spec__2_~tmp~7#1, __utac_acc__Specification2_spec__2_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification2_spec__2 } true;" "assume { :end_inline_timeShift } true;" [2024-11-23 22:34:54,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:34:54,791 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2024-11-23 22:34:54,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-23 22:34:54,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178208581] [2024-11-23 22:34:54,794 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:34:54,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:34:54,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 22:34:54,809 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 22:34:54,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 22:34:54,824 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-23 22:34:54,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:34:54,825 INFO L85 PathProgramCache]: Analyzing trace with hash -1658082103, now seen corresponding path program 1 times [2024-11-23 22:34:54,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-23 22:34:54,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935629164] [2024-11-23 22:34:54,825 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:34:54,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:34:54,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 22:34:54,841 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 22:34:54,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 22:34:54,854 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-23 22:34:54,858 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:34:54,858 INFO L85 PathProgramCache]: Analyzing trace with hash -388632064, now seen corresponding path program 1 times [2024-11-23 22:34:54,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-23 22:34:54,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285171067] [2024-11-23 22:34:54,858 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:34:54,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:34:54,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 22:34:54,880 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 22:34:54,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 22:34:54,907 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-23 22:34:56,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 22:34:56,285 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 22:34:56,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 22:34:56,367 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.11 10:34:56 BoogieIcfgContainer [2024-11-23 22:34:56,367 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-23 22:34:56,369 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-23 22:34:56,369 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-23 22:34:56,369 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-23 22:34:56,370 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:34:53" (3/4) ... [2024-11-23 22:34:56,373 INFO L143 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-23 22:34:56,438 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab5a01f-a243-46c9-a4ce-bb4e791f8316/bin/uautomizer-verify-LYvppIcaGC/witness.graphml [2024-11-23 22:34:56,439 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-23 22:34:56,442 INFO L158 Benchmark]: Toolchain (without parser) took 4456.80ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 93.1MB in the beginning and 190.2MB in the end (delta: -97.1MB). Peak memory consumption was 132.6MB. Max. memory is 16.1GB. [2024-11-23 22:34:56,443 INFO L158 Benchmark]: CDTParser took 0.43ms. Allocated memory is still 167.8MB. Free memory is still 104.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 22:34:56,443 INFO L158 Benchmark]: CACSL2BoogieTranslator took 497.14ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 74.7MB in the end (delta: 18.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-23 22:34:56,444 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.74ms. Allocated memory is still 117.4MB. Free memory was 74.4MB in the beginning and 72.1MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 22:34:56,444 INFO L158 Benchmark]: Boogie Preprocessor took 69.16ms. Allocated memory is still 117.4MB. Free memory was 72.1MB in the beginning and 69.9MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-23 22:34:56,444 INFO L158 Benchmark]: RCFGBuilder took 527.03ms. Allocated memory is still 117.4MB. Free memory was 69.9MB in the beginning and 49.9MB in the end (delta: 20.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-23 22:34:56,445 INFO L158 Benchmark]: BuchiAutomizer took 3226.14ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 49.9MB in the beginning and 193.1MB in the end (delta: -143.3MB). Peak memory consumption was 90.7MB. Max. memory is 16.1GB. [2024-11-23 22:34:56,446 INFO L158 Benchmark]: Witness Printer took 70.53ms. Allocated memory is still 352.3MB. Free memory was 193.1MB in the beginning and 190.2MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 22:34:56,448 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43ms. Allocated memory is still 167.8MB. Free memory is still 104.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 497.14ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 74.7MB in the end (delta: 18.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.74ms. Allocated memory is still 117.4MB. Free memory was 74.4MB in the beginning and 72.1MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 69.16ms. Allocated memory is still 117.4MB. Free memory was 72.1MB in the beginning and 69.9MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 527.03ms. Allocated memory is still 117.4MB. Free memory was 69.9MB in the beginning and 49.9MB in the end (delta: 20.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 3226.14ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 49.9MB in the beginning and 193.1MB in the end (delta: -143.3MB). Peak memory consumption was 90.7MB. Max. memory is 16.1GB. * Witness Printer took 70.53ms. Allocated memory is still 352.3MB. Free memory was 193.1MB in the beginning and 190.2MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [49] - GenericResultAtLocation [Line: 150]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [150] - GenericResultAtLocation [Line: 516]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [516] - GenericResultAtLocation [Line: 554]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [554] - GenericResultAtLocation [Line: 655]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [655] - GenericResultAtLocation [Line: 836]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [836] - GenericResultAtLocation [Line: 905]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [905] - GenericResultAtLocation [Line: 914]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [914] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 7 locations. The remainder module has 201 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.1s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.6s. Construction of modules took 0.1s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 92 StatesRemovedByMinimization, 1 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, 480 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 480 mSDsluCounter, 915 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 626 mSDsCounter, 27 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 64 IncrementalHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 27 mSolverCounterUnsat, 289 mSDtfsCounter, 64 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 849]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L57] int waterLevel = 1; [L58] int methaneLevelCritical = 0; [L320] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L555] int cleanupTimeShifts = 4; [L661] int pumpRunning = 0; [L662] int systemActive = 1; [L915] int methAndRunningLastTime ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L633] int retValue_acc ; [L634] int tmp ; [L638] FCALL select_helpers() [L639] FCALL select_features() [L640] CALL, EXPR valid_product() [L546] int retValue_acc ; [L549] retValue_acc = 1 [L550] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L640] RET, EXPR valid_product() [L640] tmp = valid_product() [L642] COND TRUE \read(tmp) [L644] FCALL setup() [L645] CALL runTest() [L626] CALL __utac_acc__Specification2_spec__1() [L920] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L626] RET __utac_acc__Specification2_spec__1() [L627] CALL test() [L838] int splverifierCounter ; [L839] int tmp ; [L840] int tmp___0 ; [L841] int tmp___1 ; [L842] int tmp___2 ; [L845] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L849] COND TRUE splverifierCounter < 4 [L855] tmp = __VERIFIER_nondet_int() [L857] COND FALSE !(\read(tmp)) [L865] tmp___0 = __VERIFIER_nondet_int() [L867] COND FALSE !(\read(tmp___0)) [L875] tmp___2 = __VERIFIER_nondet_int() [L877] COND FALSE !(\read(tmp___2)) [L883] tmp___1 = __VERIFIER_nondet_int() [L885] COND FALSE !(\read(tmp___1)) [L894] CALL timeShift() [L669] COND FALSE !(\read(pumpRunning)) [L676] COND TRUE \read(systemActive) [L678] CALL processEnvironment() [L698] int tmp ; [L701] COND TRUE ! pumpRunning [L703] CALL, EXPR isHighWaterLevel() [L795] int retValue_acc ; [L796] int tmp ; [L797] int tmp___0 ; [L801] CALL, EXPR isHighWaterSensorDry() [L137] int retValue_acc ; [L140] COND TRUE waterLevel < 2 [L141] retValue_acc = 1 [L142] return (retValue_acc); [L801] RET, EXPR isHighWaterSensorDry() [L801] tmp = isHighWaterSensorDry() [L803] COND TRUE \read(tmp) [L804] tmp___0 = 0 [L808] retValue_acc = tmp___0 [L809] return (retValue_acc); [L703] RET, EXPR isHighWaterLevel() [L703] tmp = isHighWaterLevel() [L705] COND FALSE !(\read(tmp)) [L711] FCALL processEnvironment__wrappee__base() [L678] RET processEnvironment() [L684] CALL __utac_acc__Specification2_spec__2() [L925] int tmp ; [L926] int tmp___0 ; [L930] CALL, EXPR isMethaneLevelCritical() [L96] int retValue_acc ; [L99] retValue_acc = methaneLevelCritical [L100] return (retValue_acc); [L930] RET, EXPR isMethaneLevelCritical() [L930] tmp = isMethaneLevelCritical() [L932] COND FALSE !(\read(tmp)) [L948] methAndRunningLastTime = 0 [L684] RET __utac_acc__Specification2_spec__2() [L894] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 849]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L57] int waterLevel = 1; [L58] int methaneLevelCritical = 0; [L320] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L555] int cleanupTimeShifts = 4; [L661] int pumpRunning = 0; [L662] int systemActive = 1; [L915] int methAndRunningLastTime ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L633] int retValue_acc ; [L634] int tmp ; [L638] FCALL select_helpers() [L639] FCALL select_features() [L640] CALL, EXPR valid_product() [L546] int retValue_acc ; [L549] retValue_acc = 1 [L550] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L640] RET, EXPR valid_product() [L640] tmp = valid_product() [L642] COND TRUE \read(tmp) [L644] FCALL setup() [L645] CALL runTest() [L626] CALL __utac_acc__Specification2_spec__1() [L920] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L626] RET __utac_acc__Specification2_spec__1() [L627] CALL test() [L838] int splverifierCounter ; [L839] int tmp ; [L840] int tmp___0 ; [L841] int tmp___1 ; [L842] int tmp___2 ; [L845] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L849] COND TRUE splverifierCounter < 4 [L855] tmp = __VERIFIER_nondet_int() [L857] COND FALSE !(\read(tmp)) [L865] tmp___0 = __VERIFIER_nondet_int() [L867] COND FALSE !(\read(tmp___0)) [L875] tmp___2 = __VERIFIER_nondet_int() [L877] COND FALSE !(\read(tmp___2)) [L883] tmp___1 = __VERIFIER_nondet_int() [L885] COND FALSE !(\read(tmp___1)) [L894] CALL timeShift() [L669] COND FALSE !(\read(pumpRunning)) [L676] COND TRUE \read(systemActive) [L678] CALL processEnvironment() [L698] int tmp ; [L701] COND TRUE ! pumpRunning [L703] CALL, EXPR isHighWaterLevel() [L795] int retValue_acc ; [L796] int tmp ; [L797] int tmp___0 ; [L801] CALL, EXPR isHighWaterSensorDry() [L137] int retValue_acc ; [L140] COND TRUE waterLevel < 2 [L141] retValue_acc = 1 [L142] return (retValue_acc); [L801] RET, EXPR isHighWaterSensorDry() [L801] tmp = isHighWaterSensorDry() [L803] COND TRUE \read(tmp) [L804] tmp___0 = 0 [L808] retValue_acc = tmp___0 [L809] return (retValue_acc); [L703] RET, EXPR isHighWaterLevel() [L703] tmp = isHighWaterLevel() [L705] COND FALSE !(\read(tmp)) [L711] FCALL processEnvironment__wrappee__base() [L678] RET processEnvironment() [L684] CALL __utac_acc__Specification2_spec__2() [L925] int tmp ; [L926] int tmp___0 ; [L930] CALL, EXPR isMethaneLevelCritical() [L96] int retValue_acc ; [L99] retValue_acc = methaneLevelCritical [L100] return (retValue_acc); [L930] RET, EXPR isMethaneLevelCritical() [L930] tmp = isMethaneLevelCritical() [L932] COND FALSE !(\read(tmp)) [L948] methAndRunningLastTime = 0 [L684] RET __utac_acc__Specification2_spec__2() [L894] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-23 22:34:56,478 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab5a01f-a243-46c9-a4ce-bb4e791f8316/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-23 22:34:56,672 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab5a01f-a243-46c9-a4ce-bb4e791f8316/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-23 22:34:56,873 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab5a01f-a243-46c9-a4ce-bb4e791f8316/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)