./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product53.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec3_product53.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 e1c4d106eb612b91999bdca4bb49f57df1223b70f35ecd881d6daa6062cb1b0b --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 14:58:01,106 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 14:58:01,185 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-19 14:58:01,191 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 14:58:01,193 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 14:58:01,224 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 14:58:01,225 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 14:58:01,225 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 14:58:01,226 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 14:58:01,227 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 14:58:01,227 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 14:58:01,228 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 14:58:01,228 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 14:58:01,229 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-19 14:58:01,230 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-19 14:58:01,230 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-19 14:58:01,230 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-19 14:58:01,231 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-19 14:58:01,231 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-19 14:58:01,232 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 14:58:01,232 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-19 14:58:01,233 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 14:58:01,233 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 14:58:01,233 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 14:58:01,234 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 14:58:01,234 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-19 14:58:01,234 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-19 14:58:01,235 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-19 14:58:01,235 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 14:58:01,235 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 14:58:01,235 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 14:58:01,236 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 14:58:01,236 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-19 14:58:01,236 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 14:58:01,237 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 14:58:01,237 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 14:58:01,238 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 14:58:01,238 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 14:58:01,238 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-19 14:58:01,239 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e1c4d106eb612b91999bdca4bb49f57df1223b70f35ecd881d6daa6062cb1b0b [2024-11-19 14:58:01,505 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 14:58:01,530 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 14:58:01,532 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 14:58:01,534 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 14:58:01,535 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 14:58:01,536 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product53.cil.c [2024-11-19 14:58:03,031 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 14:58:03,252 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 14:58:03,253 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product53.cil.c [2024-11-19 14:58:03,270 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d9c29f50/b4a67a612df2490a8e138ad21fdab5e7/FLAG151f675d7 [2024-11-19 14:58:03,608 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d9c29f50/b4a67a612df2490a8e138ad21fdab5e7 [2024-11-19 14:58:03,611 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 14:58:03,612 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 14:58:03,614 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 14:58:03,614 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 14:58:03,624 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 14:58:03,625 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:58:03" (1/1) ... [2024-11-19 14:58:03,628 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d050343 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:58:03, skipping insertion in model container [2024-11-19 14:58:03,629 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:58:03" (1/1) ... [2024-11-19 14:58:03,683 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 14:58:04,052 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 14:58:04,091 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 14:58:04,105 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] [2024-11-19 14:58:04,107 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [58] [2024-11-19 14:58:04,107 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [96] [2024-11-19 14:58:04,107 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [165] [2024-11-19 14:58:04,107 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [398] [2024-11-19 14:58:04,107 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [502] [2024-11-19 14:58:04,107 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [536] [2024-11-19 14:58:04,108 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [902] [2024-11-19 14:58:04,194 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 14:58:04,221 INFO L204 MainTranslator]: Completed translation [2024-11-19 14:58:04,222 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:58:04 WrapperNode [2024-11-19 14:58:04,222 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 14:58:04,224 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 14:58:04,224 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 14:58:04,224 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 14:58:04,231 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:58:04" (1/1) ... [2024-11-19 14:58:04,250 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:58:04" (1/1) ... [2024-11-19 14:58:04,297 INFO L138 Inliner]: procedures = 56, calls = 104, calls flagged for inlining = 57, calls inlined = 143, statements flattened = 984 [2024-11-19 14:58:04,297 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 14:58:04,298 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 14:58:04,298 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 14:58:04,298 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 14:58:04,314 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:58:04" (1/1) ... [2024-11-19 14:58:04,314 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:58:04" (1/1) ... [2024-11-19 14:58:04,321 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:58:04" (1/1) ... [2024-11-19 14:58:04,356 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]. [2024-11-19 14:58:04,356 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:58:04" (1/1) ... [2024-11-19 14:58:04,357 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:58:04" (1/1) ... [2024-11-19 14:58:04,369 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:58:04" (1/1) ... [2024-11-19 14:58:04,383 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:58:04" (1/1) ... [2024-11-19 14:58:04,387 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:58:04" (1/1) ... [2024-11-19 14:58:04,390 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:58:04" (1/1) ... [2024-11-19 14:58:04,395 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 14:58:04,396 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 14:58:04,396 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 14:58:04,397 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 14:58:04,398 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:58:04" (1/1) ... [2024-11-19 14:58:04,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:58:04,433 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:58:04,461 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-19 14:58:04,471 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-19 14:58:04,520 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 14:58:04,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 14:58:04,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 14:58:04,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 14:58:04,612 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 14:58:04,616 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 14:58:05,327 INFO L? ?]: Removed 247 outVars from TransFormulas that were not future-live. [2024-11-19 14:58:05,327 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 14:58:05,347 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 14:58:05,348 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-19 14:58:05,348 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:58:05 BoogieIcfgContainer [2024-11-19 14:58:05,348 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 14:58:05,349 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-19 14:58:05,349 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-19 14:58:05,353 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-19 14:58:05,354 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-19 14:58:05,354 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 02:58:03" (1/3) ... [2024-11-19 14:58:05,355 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@76e331b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 02:58:05, skipping insertion in model container [2024-11-19 14:58:05,355 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-19 14:58:05,355 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:58:04" (2/3) ... [2024-11-19 14:58:05,355 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@76e331b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 02:58:05, skipping insertion in model container [2024-11-19 14:58:05,355 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-19 14:58:05,355 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:58:05" (3/3) ... [2024-11-19 14:58:05,357 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product53.cil.c [2024-11-19 14:58:05,416 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-19 14:58:05,416 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-19 14:58:05,416 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-19 14:58:05,416 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-19 14:58:05,416 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-19 14:58:05,417 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-19 14:58:05,417 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-19 14:58:05,417 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-19 14:58:05,422 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 279 states, 278 states have (on average 1.370503597122302) internal successors, (381), 278 states have internal predecessors, (381), 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) [2024-11-19 14:58:05,454 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 182 [2024-11-19 14:58:05,455 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-19 14:58:05,455 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-19 14:58:05,462 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:58:05,463 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:58:05,463 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-19 14:58:05,464 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 279 states, 278 states have (on average 1.370503597122302) internal successors, (381), 278 states have internal predecessors, (381), 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) [2024-11-19 14:58:05,475 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 182 [2024-11-19 14:58:05,475 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-19 14:58:05,476 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-19 14:58:05,479 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:58:05,480 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:58:05,484 INFO L745 eck$LassoCheckResult]: Stem: 172#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 188#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret54#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 30#select_helpers_returnLabel#1true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 254#select_features_returnLabel#1true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 101#valid_product_returnLabel#1true main_#t~ret54#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret54#1;havoc main_#t~ret54#1; 40#L985true assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 78#setup_returnLabel#1true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_#t~nondet8#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 113#L111-2true [2024-11-19 14:58:05,485 INFO L747 eck$LassoCheckResult]: Loop: 113#L111-2true assume !false; 200#L112true assume test_~splverifierCounter~0#1 < 4; 259#L113true havoc test_#t~nondet5#1;test_~tmp~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 33#L121true assume !(0 != test_~tmp~0#1); 149#L121-2true havoc test_#t~nondet6#1;test_~tmp___0~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 52#L131true assume !(0 != test_~tmp___0~0#1); 112#L131-2true havoc test_#t~nondet7#1;test_~tmp___2~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; 56#L141true assume 0 != test_~tmp___2~0#1; 95#L147-2true assume { :begin_inline_timeShift } true; 36#L183true assume !(0 != ~pumpRunning~0); 180#L183-2true assume !(0 != ~systemActive~0); 244#L190-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret28#1, __utac_acc__Specification3_spec__1_#t~ret29#1, __utac_acc__Specification3_spec__1_#t~ret30#1, __utac_acc__Specification3_spec__1_~tmp~6#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~6#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 220#isMethaneLevelCritical_returnLabel#2true __utac_acc__Specification3_spec__1_#t~ret28#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~6#1 := __utac_acc__Specification3_spec__1_#t~ret28#1;havoc __utac_acc__Specification3_spec__1_#t~ret28#1; 158#L512true assume 0 != __utac_acc__Specification3_spec__1_~tmp~6#1; 175#L518-1true havoc __utac_acc__Specification3_spec__1_#t~ret28#1, __utac_acc__Specification3_spec__1_#t~ret29#1, __utac_acc__Specification3_spec__1_#t~ret30#1, __utac_acc__Specification3_spec__1_~tmp~6#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 212#timeShift_returnLabel#1true assume { :end_inline_timeShift } true; 113#L111-2true [2024-11-19 14:58:05,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:58:05,491 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2024-11-19 14:58:05,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:58:05,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326087480] [2024-11-19 14:58:05,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:58:05,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:58:05,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:58:05,613 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 14:58:05,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:58:05,661 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 14:58:05,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:58:05,666 INFO L85 PathProgramCache]: Analyzing trace with hash 408239638, now seen corresponding path program 1 times [2024-11-19 14:58:05,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:58:05,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488392488] [2024-11-19 14:58:05,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:58:05,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:58:05,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:58:05,675 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 14:58:05,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:58:05,683 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 14:58:05,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:58:05,685 INFO L85 PathProgramCache]: Analyzing trace with hash 1763658714, now seen corresponding path program 1 times [2024-11-19 14:58:05,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:58:05,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095059992] [2024-11-19 14:58:05,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:58:05,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:58:05,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:58:05,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:58:05,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:58:05,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095059992] [2024-11-19 14:58:05,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095059992] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:58:05,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:58:05,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 14:58:05,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012002901] [2024-11-19 14:58:05,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:58:06,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:58:06,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 14:58:06,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 14:58:06,081 INFO L87 Difference]: Start difference. First operand has 279 states, 278 states have (on average 1.370503597122302) internal successors, (381), 278 states have internal predecessors, (381), 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 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 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) [2024-11-19 14:58:06,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 14:58:06,167 INFO L93 Difference]: Finished difference Result 273 states and 364 transitions. [2024-11-19 14:58:06,168 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 273 states and 364 transitions. [2024-11-19 14:58:06,173 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 176 [2024-11-19 14:58:06,178 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 273 states to 263 states and 354 transitions. [2024-11-19 14:58:06,179 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 263 [2024-11-19 14:58:06,180 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 263 [2024-11-19 14:58:06,181 INFO L73 IsDeterministic]: Start isDeterministic. Operand 263 states and 354 transitions. [2024-11-19 14:58:06,182 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-19 14:58:06,182 INFO L218 hiAutomatonCegarLoop]: Abstraction has 263 states and 354 transitions. [2024-11-19 14:58:06,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states and 354 transitions. [2024-11-19 14:58:06,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 263. [2024-11-19 14:58:06,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 263 states have (on average 1.3460076045627376) internal successors, (354), 262 states have internal predecessors, (354), 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) [2024-11-19 14:58:06,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 354 transitions. [2024-11-19 14:58:06,223 INFO L240 hiAutomatonCegarLoop]: Abstraction has 263 states and 354 transitions. [2024-11-19 14:58:06,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 14:58:06,227 INFO L425 stractBuchiCegarLoop]: Abstraction has 263 states and 354 transitions. [2024-11-19 14:58:06,227 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-19 14:58:06,227 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 263 states and 354 transitions. [2024-11-19 14:58:06,229 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 176 [2024-11-19 14:58:06,230 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-19 14:58:06,230 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-19 14:58:06,231 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:58:06,231 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] [2024-11-19 14:58:06,231 INFO L745 eck$LassoCheckResult]: Stem: 800#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 801#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret54#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 625#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 626#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 734#valid_product_returnLabel#1 main_#t~ret54#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret54#1;havoc main_#t~ret54#1; 647#L985 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 648#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_#t~nondet8#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 707#L111-2 [2024-11-19 14:58:06,231 INFO L747 eck$LassoCheckResult]: Loop: 707#L111-2 assume !false; 748#L112 assume test_~splverifierCounter~0#1 < 4; 811#L113 havoc test_#t~nondet5#1;test_~tmp~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 630#L121 assume !(0 != test_~tmp~0#1); 631#L121-2 havoc test_#t~nondet6#1;test_~tmp___0~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 667#L131 assume !(0 != test_~tmp___0~0#1); 669#L131-2 havoc test_#t~nondet7#1;test_~tmp___2~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; 675#L141 assume 0 != test_~tmp___2~0#1; 677#L147-2 assume { :begin_inline_timeShift } true; 638#L183 assume !(0 != ~pumpRunning~0); 639#L183-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret11#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 796#L267 assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret12#1, isMethaneAlarm_~retValue_acc~2#1;havoc isMethaneAlarm_~retValue_acc~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 797#isMethaneLevelCritical_returnLabel#1 isMethaneAlarm_#t~ret12#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~2#1 := isMethaneAlarm_#t~ret12#1;havoc isMethaneAlarm_#t~ret12#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~2#1; 830#isMethaneAlarm_returnLabel#1 processEnvironment_#t~ret11#1 := isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret12#1, isMethaneAlarm_~retValue_acc~2#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~3#1 := processEnvironment_#t~ret11#1;havoc processEnvironment_#t~ret11#1; 802#L271 assume 0 != processEnvironment_~tmp~3#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; 803#deactivatePump_returnLabel#1 assume { :end_inline_deactivatePump } true; 655#L267-1 havoc processEnvironment_#t~ret11#1, processEnvironment_~tmp~3#1;assume { :end_inline_processEnvironment } true; 656#L190-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret28#1, __utac_acc__Specification3_spec__1_#t~ret29#1, __utac_acc__Specification3_spec__1_#t~ret30#1, __utac_acc__Specification3_spec__1_~tmp~6#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~6#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 823#isMethaneLevelCritical_returnLabel#2 __utac_acc__Specification3_spec__1_#t~ret28#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~6#1 := __utac_acc__Specification3_spec__1_#t~ret28#1;havoc __utac_acc__Specification3_spec__1_#t~ret28#1; 786#L512 assume 0 != __utac_acc__Specification3_spec__1_~tmp~6#1; 586#L518-1 havoc __utac_acc__Specification3_spec__1_#t~ret28#1, __utac_acc__Specification3_spec__1_#t~ret29#1, __utac_acc__Specification3_spec__1_#t~ret30#1, __utac_acc__Specification3_spec__1_~tmp~6#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 804#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 707#L111-2 [2024-11-19 14:58:06,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:58:06,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2024-11-19 14:58:06,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:58:06,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823036886] [2024-11-19 14:58:06,233 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 14:58:06,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:58:06,247 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 14:58:06,248 INFO L228 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-19 14:58:06,248 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 14:58:06,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:58:06,264 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 14:58:06,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:58:06,269 INFO L85 PathProgramCache]: Analyzing trace with hash -49334881, now seen corresponding path program 1 times [2024-11-19 14:58:06,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:58:06,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213814288] [2024-11-19 14:58:06,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:58:06,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:58:06,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:58:06,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:58:06,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:58:06,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213814288] [2024-11-19 14:58:06,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213814288] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:58:06,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:58:06,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 14:58:06,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130690486] [2024-11-19 14:58:06,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:58:06,309 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-19 14:58:06,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:58:06,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 14:58:06,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 14:58:06,310 INFO L87 Difference]: Start difference. First operand 263 states and 354 transitions. cyclomatic complexity: 93 Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2024-11-19 14:58:06,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 14:58:06,405 INFO L93 Difference]: Finished difference Result 279 states and 356 transitions. [2024-11-19 14:58:06,405 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 279 states and 356 transitions. [2024-11-19 14:58:06,408 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 192 [2024-11-19 14:58:06,410 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 279 states to 279 states and 356 transitions. [2024-11-19 14:58:06,410 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 279 [2024-11-19 14:58:06,411 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 279 [2024-11-19 14:58:06,411 INFO L73 IsDeterministic]: Start isDeterministic. Operand 279 states and 356 transitions. [2024-11-19 14:58:06,412 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-19 14:58:06,412 INFO L218 hiAutomatonCegarLoop]: Abstraction has 279 states and 356 transitions. [2024-11-19 14:58:06,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states and 356 transitions. [2024-11-19 14:58:06,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 279. [2024-11-19 14:58:06,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 279 states have (on average 1.2759856630824373) internal successors, (356), 278 states have internal predecessors, (356), 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) [2024-11-19 14:58:06,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 356 transitions. [2024-11-19 14:58:06,433 INFO L240 hiAutomatonCegarLoop]: Abstraction has 279 states and 356 transitions. [2024-11-19 14:58:06,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 14:58:06,434 INFO L425 stractBuchiCegarLoop]: Abstraction has 279 states and 356 transitions. [2024-11-19 14:58:06,434 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-19 14:58:06,434 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 279 states and 356 transitions. [2024-11-19 14:58:06,436 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 192 [2024-11-19 14:58:06,436 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-19 14:58:06,436 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-19 14:58:06,437 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:58:06,437 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] [2024-11-19 14:58:06,438 INFO L745 eck$LassoCheckResult]: Stem: 1305#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 1306#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret54#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 1152#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1153#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 1253#valid_product_returnLabel#1 main_#t~ret54#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret54#1;havoc main_#t~ret54#1; 1170#L985 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 1171#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_#t~nondet8#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1225#L111-2 [2024-11-19 14:58:06,438 INFO L747 eck$LassoCheckResult]: Loop: 1225#L111-2 assume !false; 1265#L112 assume test_~splverifierCounter~0#1 < 4; 1318#L113 havoc test_#t~nondet5#1;test_~tmp~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 1154#L121 assume !(0 != test_~tmp~0#1); 1155#L121-2 havoc test_#t~nondet6#1;test_~tmp___0~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 1188#L131 assume !(0 != test_~tmp___0~0#1); 1190#L131-2 havoc test_#t~nondet7#1;test_~tmp___2~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; 1195#L141 assume 0 != test_~tmp___2~0#1; 1197#L147-2 assume { :begin_inline_timeShift } true; 1165#L183 assume !(0 != ~pumpRunning~0); 1166#L183-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret11#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 1301#L267 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret10#1, processEnvironment__wrappee__lowWaterSensor_~tmp~2#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~2#1; 1214#L241-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret9#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 1215#L215-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret21#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~4#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 1248#L483-3 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~8#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 1249#isHighWaterSensorDry_returnLabel#4 isHighWaterLevel_#t~ret21#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret21#1;havoc isHighWaterLevel_#t~ret21#1; 1334#L369-9 assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~1#1 := 0; 1328#L369-11 isHighWaterLevel_~retValue_acc~4#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1; 1314#isHighWaterLevel_returnLabel#4 processEnvironment__wrappee__highWaterSensor_#t~ret9#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret21#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret9#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret9#1; 1159#L219-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1160#processEnvironment__wrappee__base_returnLabel#7 assume { :end_inline_processEnvironment__wrappee__base } true; 1174#L215-7 havoc processEnvironment__wrappee__highWaterSensor_#t~ret9#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1175#L241-3 havoc processEnvironment__wrappee__lowWaterSensor_#t~ret10#1, processEnvironment__wrappee__lowWaterSensor_~tmp~2#1;assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 1178#L267-1 havoc processEnvironment_#t~ret11#1, processEnvironment_~tmp~3#1;assume { :end_inline_processEnvironment } true; 1179#L190-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret28#1, __utac_acc__Specification3_spec__1_#t~ret29#1, __utac_acc__Specification3_spec__1_#t~ret30#1, __utac_acc__Specification3_spec__1_~tmp~6#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~6#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 1329#isMethaneLevelCritical_returnLabel#2 __utac_acc__Specification3_spec__1_#t~ret28#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~6#1 := __utac_acc__Specification3_spec__1_#t~ret28#1;havoc __utac_acc__Specification3_spec__1_#t~ret28#1; 1292#L512 assume 0 != __utac_acc__Specification3_spec__1_~tmp~6#1; 1128#L518-1 havoc __utac_acc__Specification3_spec__1_#t~ret28#1, __utac_acc__Specification3_spec__1_#t~ret29#1, __utac_acc__Specification3_spec__1_#t~ret30#1, __utac_acc__Specification3_spec__1_~tmp~6#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1309#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1225#L111-2 [2024-11-19 14:58:06,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:58:06,439 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2024-11-19 14:58:06,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:58:06,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035249573] [2024-11-19 14:58:06,439 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 14:58:06,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:58:06,447 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-19 14:58:06,448 INFO L228 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-19 14:58:06,448 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 14:58:06,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:58:06,463 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 14:58:06,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:58:06,464 INFO L85 PathProgramCache]: Analyzing trace with hash 1895084478, now seen corresponding path program 1 times [2024-11-19 14:58:06,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:58:06,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989427522] [2024-11-19 14:58:06,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:58:06,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:58:06,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:58:06,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:58:06,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:58:06,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989427522] [2024-11-19 14:58:06,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989427522] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:58:06,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:58:06,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 14:58:06,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10297438] [2024-11-19 14:58:06,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:58:06,533 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-19 14:58:06,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:58:06,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:58:06,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:58:06,534 INFO L87 Difference]: Start difference. First operand 279 states and 356 transitions. cyclomatic complexity: 79 Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:58:06,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 14:58:06,667 INFO L93 Difference]: Finished difference Result 297 states and 374 transitions. [2024-11-19 14:58:06,667 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 297 states and 374 transitions. [2024-11-19 14:58:06,669 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 204 [2024-11-19 14:58:06,671 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 297 states to 297 states and 374 transitions. [2024-11-19 14:58:06,672 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 297 [2024-11-19 14:58:06,672 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 297 [2024-11-19 14:58:06,673 INFO L73 IsDeterministic]: Start isDeterministic. Operand 297 states and 374 transitions. [2024-11-19 14:58:06,675 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-19 14:58:06,678 INFO L218 hiAutomatonCegarLoop]: Abstraction has 297 states and 374 transitions. [2024-11-19 14:58:06,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states and 374 transitions. [2024-11-19 14:58:06,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 297. [2024-11-19 14:58:06,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 297 states have (on average 1.2592592592592593) internal successors, (374), 296 states have internal predecessors, (374), 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) [2024-11-19 14:58:06,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 374 transitions. [2024-11-19 14:58:06,695 INFO L240 hiAutomatonCegarLoop]: Abstraction has 297 states and 374 transitions. [2024-11-19 14:58:06,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:58:06,697 INFO L425 stractBuchiCegarLoop]: Abstraction has 297 states and 374 transitions. [2024-11-19 14:58:06,698 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-19 14:58:06,698 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 297 states and 374 transitions. [2024-11-19 14:58:06,700 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 204 [2024-11-19 14:58:06,700 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-19 14:58:06,701 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-19 14:58:06,702 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:58:06,703 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] [2024-11-19 14:58:06,703 INFO L745 eck$LassoCheckResult]: Stem: 1890#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 1891#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret54#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 1735#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1736#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 1838#valid_product_returnLabel#1 main_#t~ret54#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret54#1;havoc main_#t~ret54#1; 1754#L985 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 1755#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_#t~nondet8#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1809#L111-2 [2024-11-19 14:58:06,705 INFO L747 eck$LassoCheckResult]: Loop: 1809#L111-2 assume !false; 1849#L112 assume test_~splverifierCounter~0#1 < 4; 1903#L113 havoc test_#t~nondet5#1;test_~tmp~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 1737#L121 assume !(0 != test_~tmp~0#1); 1738#L121-2 havoc test_#t~nondet6#1;test_~tmp___0~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 1772#L131 assume !(0 != test_~tmp___0~0#1); 1774#L131-2 havoc test_#t~nondet7#1;test_~tmp___2~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; 1779#L141 assume 0 != test_~tmp___2~0#1; 1781#L147-2 assume { :begin_inline_timeShift } true; 1745#L183 assume !(0 != ~pumpRunning~0); 1746#L183-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret11#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 1885#L267 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret10#1, processEnvironment__wrappee__lowWaterSensor_~tmp~2#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~2#1; 1798#L241-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret9#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 1799#L215-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret21#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~4#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 1832#L483-3 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~8#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 1833#isHighWaterSensorDry_returnLabel#4 isHighWaterLevel_#t~ret21#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret21#1;havoc isHighWaterLevel_#t~ret21#1; 1928#L369-9 assume !(0 != isHighWaterLevel_~tmp~4#1);isHighWaterLevel_~tmp___0~1#1 := 1; 1916#L369-11 isHighWaterLevel_~retValue_acc~4#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1; 1899#isHighWaterLevel_returnLabel#4 processEnvironment__wrappee__highWaterSensor_#t~ret9#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret21#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret9#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret9#1; 1742#L219-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1743#processEnvironment__wrappee__base_returnLabel#7 assume { :end_inline_processEnvironment__wrappee__base } true; 1758#L215-7 havoc processEnvironment__wrappee__highWaterSensor_#t~ret9#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1759#L241-3 havoc processEnvironment__wrappee__lowWaterSensor_#t~ret10#1, processEnvironment__wrappee__lowWaterSensor_~tmp~2#1;assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 1762#L267-1 havoc processEnvironment_#t~ret11#1, processEnvironment_~tmp~3#1;assume { :end_inline_processEnvironment } true; 1763#L190-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret28#1, __utac_acc__Specification3_spec__1_#t~ret29#1, __utac_acc__Specification3_spec__1_#t~ret30#1, __utac_acc__Specification3_spec__1_~tmp~6#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~6#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 1917#isMethaneLevelCritical_returnLabel#2 __utac_acc__Specification3_spec__1_#t~ret28#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~6#1 := __utac_acc__Specification3_spec__1_#t~ret28#1;havoc __utac_acc__Specification3_spec__1_#t~ret28#1; 1876#L512 assume 0 != __utac_acc__Specification3_spec__1_~tmp~6#1; 1711#L518-1 havoc __utac_acc__Specification3_spec__1_#t~ret28#1, __utac_acc__Specification3_spec__1_#t~ret29#1, __utac_acc__Specification3_spec__1_#t~ret30#1, __utac_acc__Specification3_spec__1_~tmp~6#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1894#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1809#L111-2 [2024-11-19 14:58:06,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:58:06,706 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2024-11-19 14:58:06,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:58:06,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392701587] [2024-11-19 14:58:06,707 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 14:58:06,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:58:06,718 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 14:58:06,722 INFO L228 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-19 14:58:06,722 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 14:58:06,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:58:06,738 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 14:58:06,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:58:06,738 INFO L85 PathProgramCache]: Analyzing trace with hash 1308278464, now seen corresponding path program 1 times [2024-11-19 14:58:06,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:58:06,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651169548] [2024-11-19 14:58:06,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:58:06,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:58:06,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:58:06,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:58:06,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:58:06,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651169548] [2024-11-19 14:58:06,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651169548] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:58:06,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:58:06,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 14:58:06,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332004955] [2024-11-19 14:58:06,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:58:06,834 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-19 14:58:06,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:58:06,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 14:58:06,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 14:58:06,836 INFO L87 Difference]: Start difference. First operand 297 states and 374 transitions. cyclomatic complexity: 79 Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:58:07,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 14:58:07,010 INFO L93 Difference]: Finished difference Result 324 states and 401 transitions. [2024-11-19 14:58:07,010 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 324 states and 401 transitions. [2024-11-19 14:58:07,012 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 222 [2024-11-19 14:58:07,015 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 324 states to 324 states and 401 transitions. [2024-11-19 14:58:07,015 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 324 [2024-11-19 14:58:07,015 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 324 [2024-11-19 14:58:07,017 INFO L73 IsDeterministic]: Start isDeterministic. Operand 324 states and 401 transitions. [2024-11-19 14:58:07,017 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-19 14:58:07,017 INFO L218 hiAutomatonCegarLoop]: Abstraction has 324 states and 401 transitions. [2024-11-19 14:58:07,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states and 401 transitions. [2024-11-19 14:58:07,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 324. [2024-11-19 14:58:07,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 324 states have (on average 1.2376543209876543) internal successors, (401), 323 states have internal predecessors, (401), 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) [2024-11-19 14:58:07,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 401 transitions. [2024-11-19 14:58:07,035 INFO L240 hiAutomatonCegarLoop]: Abstraction has 324 states and 401 transitions. [2024-11-19 14:58:07,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 14:58:07,036 INFO L425 stractBuchiCegarLoop]: Abstraction has 324 states and 401 transitions. [2024-11-19 14:58:07,038 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-19 14:58:07,039 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 324 states and 401 transitions. [2024-11-19 14:58:07,040 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 222 [2024-11-19 14:58:07,041 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-19 14:58:07,041 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-19 14:58:07,041 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:58:07,041 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] [2024-11-19 14:58:07,042 INFO L745 eck$LassoCheckResult]: Stem: 2521#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 2522#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret54#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 2364#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2365#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 2465#valid_product_returnLabel#1 main_#t~ret54#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret54#1;havoc main_#t~ret54#1; 2384#L985 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 2385#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_#t~nondet8#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2435#L111-2 [2024-11-19 14:58:07,042 INFO L747 eck$LassoCheckResult]: Loop: 2435#L111-2 assume !false; 2476#L112 assume test_~splverifierCounter~0#1 < 4; 2539#L113 havoc test_#t~nondet5#1;test_~tmp~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 2366#L121 assume !(0 != test_~tmp~0#1); 2367#L121-2 havoc test_#t~nondet6#1;test_~tmp___0~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 2400#L131 assume !(0 != test_~tmp___0~0#1); 2402#L131-2 havoc test_#t~nondet7#1;test_~tmp___2~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; 2407#L141 assume 0 != test_~tmp___2~0#1; 2409#L147-2 assume { :begin_inline_timeShift } true; 2376#L183 assume !(0 != ~pumpRunning~0); 2377#L183-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret11#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 2515#L267 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret10#1, processEnvironment__wrappee__lowWaterSensor_~tmp~2#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~2#1; 2423#L241-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret9#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 2424#L215-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret21#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~4#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 2459#L483-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 2461#isHighWaterSensorDry_returnLabel#4 isHighWaterLevel_#t~ret21#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret21#1;havoc isHighWaterLevel_#t~ret21#1; 2644#L369-9 assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~1#1 := 0; 2643#L369-11 isHighWaterLevel_~retValue_acc~4#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1; 2642#isHighWaterLevel_returnLabel#4 processEnvironment__wrappee__highWaterSensor_#t~ret9#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret21#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret9#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret9#1; 2603#L219-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2481#processEnvironment__wrappee__base_returnLabel#7 assume { :end_inline_processEnvironment__wrappee__base } true; 2386#L215-7 havoc processEnvironment__wrappee__highWaterSensor_#t~ret9#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 2387#L241-3 havoc processEnvironment__wrappee__lowWaterSensor_#t~ret10#1, processEnvironment__wrappee__lowWaterSensor_~tmp~2#1;assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 2390#L267-1 havoc processEnvironment_#t~ret11#1, processEnvironment_~tmp~3#1;assume { :end_inline_processEnvironment } true; 2391#L190-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret28#1, __utac_acc__Specification3_spec__1_#t~ret29#1, __utac_acc__Specification3_spec__1_#t~ret30#1, __utac_acc__Specification3_spec__1_~tmp~6#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~6#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 2553#isMethaneLevelCritical_returnLabel#2 __utac_acc__Specification3_spec__1_#t~ret28#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~6#1 := __utac_acc__Specification3_spec__1_#t~ret28#1;havoc __utac_acc__Specification3_spec__1_#t~ret28#1; 2506#L512 assume 0 != __utac_acc__Specification3_spec__1_~tmp~6#1; 2340#L518-1 havoc __utac_acc__Specification3_spec__1_#t~ret28#1, __utac_acc__Specification3_spec__1_#t~ret29#1, __utac_acc__Specification3_spec__1_#t~ret30#1, __utac_acc__Specification3_spec__1_~tmp~6#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 2527#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 2435#L111-2 [2024-11-19 14:58:07,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:58:07,043 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 5 times [2024-11-19 14:58:07,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:58:07,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144900824] [2024-11-19 14:58:07,043 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 14:58:07,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:58:07,054 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 14:58:07,056 INFO L228 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-19 14:58:07,056 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 14:58:07,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:58:07,069 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 14:58:07,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:58:07,070 INFO L85 PathProgramCache]: Analyzing trace with hash -1120019140, now seen corresponding path program 1 times [2024-11-19 14:58:07,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:58:07,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741753171] [2024-11-19 14:58:07,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:58:07,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:58:07,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:58:07,079 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 14:58:07,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:58:07,088 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 14:58:07,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:58:07,091 INFO L85 PathProgramCache]: Analyzing trace with hash -1245753864, now seen corresponding path program 1 times [2024-11-19 14:58:07,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:58:07,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957651313] [2024-11-19 14:58:07,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:58:07,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:58:07,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:58:07,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:58:07,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:58:07,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957651313] [2024-11-19 14:58:07,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957651313] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:58:07,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:58:07,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 14:58:07,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060435373] [2024-11-19 14:58:07,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:58:07,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:58:07,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 14:58:07,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 14:58:07,316 INFO L87 Difference]: Start difference. First operand 324 states and 401 transitions. cyclomatic complexity: 79 Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 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) [2024-11-19 14:58:07,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 14:58:07,403 INFO L93 Difference]: Finished difference Result 641 states and 787 transitions. [2024-11-19 14:58:07,403 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 641 states and 787 transitions. [2024-11-19 14:58:07,407 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 444 [2024-11-19 14:58:07,410 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 641 states to 641 states and 787 transitions. [2024-11-19 14:58:07,410 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 641 [2024-11-19 14:58:07,411 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 641 [2024-11-19 14:58:07,411 INFO L73 IsDeterministic]: Start isDeterministic. Operand 641 states and 787 transitions. [2024-11-19 14:58:07,411 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-19 14:58:07,412 INFO L218 hiAutomatonCegarLoop]: Abstraction has 641 states and 787 transitions. [2024-11-19 14:58:07,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641 states and 787 transitions. [2024-11-19 14:58:07,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641 to 641. [2024-11-19 14:58:07,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 641 states have (on average 1.2277691107644306) internal successors, (787), 640 states have internal predecessors, (787), 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) [2024-11-19 14:58:07,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 787 transitions. [2024-11-19 14:58:07,426 INFO L240 hiAutomatonCegarLoop]: Abstraction has 641 states and 787 transitions. [2024-11-19 14:58:07,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 14:58:07,427 INFO L425 stractBuchiCegarLoop]: Abstraction has 641 states and 787 transitions. [2024-11-19 14:58:07,427 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-11-19 14:58:07,427 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 641 states and 787 transitions. [2024-11-19 14:58:07,431 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 444 [2024-11-19 14:58:07,432 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-19 14:58:07,432 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-19 14:58:07,433 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:58:07,433 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] [2024-11-19 14:58:07,434 INFO L745 eck$LassoCheckResult]: Stem: 3507#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 3508#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret54#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 3342#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 3343#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 3446#valid_product_returnLabel#1 main_#t~ret54#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret54#1;havoc main_#t~ret54#1; 3361#L985 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 3362#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_#t~nondet8#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 3415#L111-2 [2024-11-19 14:58:07,435 INFO L747 eck$LassoCheckResult]: Loop: 3415#L111-2 assume !false; 3457#L112 assume test_~splverifierCounter~0#1 < 4; 3529#L113 havoc test_#t~nondet5#1;test_~tmp~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 3570#L121 assume !(0 != test_~tmp~0#1); 3735#L121-2 havoc test_#t~nondet6#1;test_~tmp___0~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 3381#L131 assume !(0 != test_~tmp___0~0#1); 3383#L131-2 havoc test_#t~nondet7#1;test_~tmp___2~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; 3388#L141 assume 0 != test_~tmp___2~0#1; 3390#L147-2 assume { :begin_inline_timeShift } true; 3354#L183 assume !(0 != ~pumpRunning~0); 3355#L183-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret11#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 3501#L267 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret10#1, processEnvironment__wrappee__lowWaterSensor_~tmp~2#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~2#1; 3502#L241-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret9#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 3639#L215-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret21#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~4#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 3440#L483-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 3442#isHighWaterSensorDry_returnLabel#4 isHighWaterLevel_#t~ret21#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret21#1;havoc isHighWaterLevel_#t~ret21#1; 3722#L369-9 assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~1#1 := 0; 3721#L369-11 isHighWaterLevel_~retValue_acc~4#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1; 3718#isHighWaterLevel_returnLabel#4 processEnvironment__wrappee__highWaterSensor_#t~ret9#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret21#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret9#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret9#1; 3717#L219-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 3464#processEnvironment__wrappee__base_returnLabel#7 assume { :end_inline_processEnvironment__wrappee__base } true; 3366#L215-7 havoc processEnvironment__wrappee__highWaterSensor_#t~ret9#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 3367#L241-3 havoc processEnvironment__wrappee__lowWaterSensor_#t~ret10#1, processEnvironment__wrappee__lowWaterSensor_~tmp~2#1;assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 3370#L267-1 havoc processEnvironment_#t~ret11#1, processEnvironment_~tmp~3#1;assume { :end_inline_processEnvironment } true; 3371#L190-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret28#1, __utac_acc__Specification3_spec__1_#t~ret29#1, __utac_acc__Specification3_spec__1_#t~ret30#1, __utac_acc__Specification3_spec__1_~tmp~6#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~6#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 3548#isMethaneLevelCritical_returnLabel#2 __utac_acc__Specification3_spec__1_#t~ret28#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~6#1 := __utac_acc__Specification3_spec__1_#t~ret28#1;havoc __utac_acc__Specification3_spec__1_#t~ret28#1; 3492#L512 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~6#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; 3493#getWaterLevel_returnLabel#1 __utac_acc__Specification3_spec__1_#t~ret29#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~3#1 := __utac_acc__Specification3_spec__1_#t~ret29#1;havoc __utac_acc__Specification3_spec__1_#t~ret29#1; 3317#L518 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~3#1); 3319#L518-1 havoc __utac_acc__Specification3_spec__1_#t~ret28#1, __utac_acc__Specification3_spec__1_#t~ret29#1, __utac_acc__Specification3_spec__1_#t~ret30#1, __utac_acc__Specification3_spec__1_~tmp~6#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 3512#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 3415#L111-2 [2024-11-19 14:58:07,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:58:07,435 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 6 times [2024-11-19 14:58:07,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:58:07,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080944786] [2024-11-19 14:58:07,436 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-19 14:58:07,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:58:07,444 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-11-19 14:58:07,444 INFO L228 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-19 14:58:07,444 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 14:58:07,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:58:07,454 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 14:58:07,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:58:07,457 INFO L85 PathProgramCache]: Analyzing trace with hash 1699595537, now seen corresponding path program 1 times [2024-11-19 14:58:07,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:58:07,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051050383] [2024-11-19 14:58:07,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:58:07,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:58:07,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:58:07,469 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 14:58:07,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:58:07,475 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 14:58:07,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:58:07,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1127610061, now seen corresponding path program 1 times [2024-11-19 14:58:07,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:58:07,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059355675] [2024-11-19 14:58:07,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:58:07,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:58:07,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:58:07,485 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 14:58:07,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:58:07,495 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 14:58:08,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:58:08,391 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 14:58:08,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:58:08,449 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 02:58:08 BoogieIcfgContainer [2024-11-19 14:58:08,450 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-19 14:58:08,453 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-19 14:58:08,453 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-19 14:58:08,453 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-19 14:58:08,454 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:58:05" (3/4) ... [2024-11-19 14:58:08,455 INFO L139 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-19 14:58:08,522 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-19 14:58:08,522 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-19 14:58:08,523 INFO L158 Benchmark]: Toolchain (without parser) took 4910.89ms. Allocated memory was 188.7MB in the beginning and 234.9MB in the end (delta: 46.1MB). Free memory was 119.6MB in the beginning and 125.3MB in the end (delta: -5.8MB). Peak memory consumption was 43.4MB. Max. memory is 16.1GB. [2024-11-19 14:58:08,523 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 104.9MB. Free memory is still 66.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 14:58:08,524 INFO L158 Benchmark]: CACSL2BoogieTranslator took 608.71ms. Allocated memory is still 188.7MB. Free memory was 119.3MB in the beginning and 154.8MB in the end (delta: -35.5MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. [2024-11-19 14:58:08,524 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.41ms. Allocated memory is still 188.7MB. Free memory was 154.8MB in the beginning and 150.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-19 14:58:08,524 INFO L158 Benchmark]: Boogie Preprocessor took 97.62ms. Allocated memory is still 188.7MB. Free memory was 150.6MB in the beginning and 145.5MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-19 14:58:08,525 INFO L158 Benchmark]: RCFGBuilder took 952.24ms. Allocated memory is still 188.7MB. Free memory was 145.5MB in the beginning and 103.6MB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-11-19 14:58:08,525 INFO L158 Benchmark]: BuchiAutomizer took 3100.29ms. Allocated memory was 188.7MB in the beginning and 234.9MB in the end (delta: 46.1MB). Free memory was 103.6MB in the beginning and 128.5MB in the end (delta: -24.9MB). Peak memory consumption was 23.4MB. Max. memory is 16.1GB. [2024-11-19 14:58:08,525 INFO L158 Benchmark]: Witness Printer took 69.79ms. Allocated memory is still 234.9MB. Free memory was 128.5MB in the beginning and 125.3MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-19 14:58:08,527 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 104.9MB. Free memory is still 66.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 608.71ms. Allocated memory is still 188.7MB. Free memory was 119.3MB in the beginning and 154.8MB in the end (delta: -35.5MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.41ms. Allocated memory is still 188.7MB. Free memory was 154.8MB in the beginning and 150.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 97.62ms. Allocated memory is still 188.7MB. Free memory was 150.6MB in the beginning and 145.5MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 952.24ms. Allocated memory is still 188.7MB. Free memory was 145.5MB in the beginning and 103.6MB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * BuchiAutomizer took 3100.29ms. Allocated memory was 188.7MB in the beginning and 234.9MB in the end (delta: 46.1MB). Free memory was 103.6MB in the beginning and 128.5MB in the end (delta: -24.9MB). Peak memory consumption was 23.4MB. Max. memory is 16.1GB. * Witness Printer took 69.79ms. Allocated memory is still 234.9MB. Free memory was 128.5MB in the beginning and 125.3MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] - GenericResultAtLocation [Line: 58]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [58] - GenericResultAtLocation [Line: 96]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [96] - GenericResultAtLocation [Line: 165]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [165] - GenericResultAtLocation [Line: 398]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [398] - GenericResultAtLocation [Line: 502]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [502] - GenericResultAtLocation [Line: 536]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [536] - GenericResultAtLocation [Line: 902]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [902] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (5 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.5 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 641 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.0s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 2.1s. Construction of modules took 0.3s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 0. Minimization of det autom 5. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 782 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 782 mSDsluCounter, 4451 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2933 mSDsCounter, 103 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 423 IncrementalHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 103 mSolverCounterUnsat, 1518 mSDtfsCounter, 423 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 111]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L175] int pumpRunning = 0; [L176] int systemActive = 1; [L400] int waterLevel = 1; [L401] int methaneLevelCritical = 0; [L706] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L903] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L976] int retValue_acc ; [L977] int tmp ; [L981] FCALL select_helpers() [L982] FCALL select_features() [L983] CALL, EXPR valid_product() [L88] int retValue_acc ; [L91] retValue_acc = 1 [L92] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L983] RET, EXPR valid_product() [L983] tmp = valid_product() [L985] COND TRUE \read(tmp) [L987] FCALL setup() [L988] CALL runTest() [L970] CALL test() [L102] int splverifierCounter ; [L103] int tmp ; [L104] int tmp___0 ; [L105] int tmp___1 ; [L106] int tmp___2 ; [L109] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L111] COND TRUE 1 [L113] COND TRUE splverifierCounter < 4 [L119] tmp = __VERIFIER_nondet_int() [L121] COND FALSE !(\read(tmp)) [L129] tmp___0 = __VERIFIER_nondet_int() [L131] COND FALSE !(\read(tmp___0)) [L139] tmp___2 = __VERIFIER_nondet_int() [L141] COND TRUE \read(tmp___2) [L154] CALL timeShift() [L183] COND FALSE !(\read(pumpRunning)) [L190] COND TRUE \read(systemActive) [L192] CALL processEnvironment() [L264] int tmp ; [L267] COND FALSE !(\read(pumpRunning)) [L282] CALL processEnvironment__wrappee__lowWaterSensor() [L238] int tmp ; [L241] COND FALSE !(\read(pumpRunning)) [L256] CALL processEnvironment__wrappee__highWaterSensor() [L212] int tmp ; [L215] COND TRUE ! pumpRunning [L217] CALL, EXPR isHighWaterLevel() [L361] int retValue_acc ; [L362] int tmp ; [L363] int tmp___0 ; [L367] CALL, EXPR isHighWaterSensorDry() [L480] int retValue_acc ; [L483] COND TRUE waterLevel < 2 [L484] retValue_acc = 1 [L485] return (retValue_acc); [L367] RET, EXPR isHighWaterSensorDry() [L367] tmp = isHighWaterSensorDry() [L369] COND TRUE \read(tmp) [L370] tmp___0 = 0 [L374] retValue_acc = tmp___0 [L375] return (retValue_acc); [L217] RET, EXPR isHighWaterLevel() [L217] tmp = isHighWaterLevel() [L219] COND FALSE !(\read(tmp)) [L225] FCALL processEnvironment__wrappee__base() [L256] RET processEnvironment__wrappee__highWaterSensor() [L282] RET processEnvironment__wrappee__lowWaterSensor() [L192] RET processEnvironment() [L198] CALL __utac_acc__Specification3_spec__1() [L504] int tmp ; [L505] int tmp___0 ; [L506] int tmp___1 ; [L510] CALL, EXPR isMethaneLevelCritical() [L439] int retValue_acc ; [L442] retValue_acc = methaneLevelCritical [L443] return (retValue_acc); [L510] RET, EXPR isMethaneLevelCritical() [L510] tmp = isMethaneLevelCritical() [L512] COND FALSE !(\read(tmp)) [L516] CALL, EXPR getWaterLevel() [L471] int retValue_acc ; [L474] retValue_acc = waterLevel [L475] return (retValue_acc); [L516] RET, EXPR getWaterLevel() [L516] tmp___0 = getWaterLevel() [L518] COND FALSE !(tmp___0 == 2) [L198] RET __utac_acc__Specification3_spec__1() [L154] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 111]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L175] int pumpRunning = 0; [L176] int systemActive = 1; [L400] int waterLevel = 1; [L401] int methaneLevelCritical = 0; [L706] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L903] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L976] int retValue_acc ; [L977] int tmp ; [L981] FCALL select_helpers() [L982] FCALL select_features() [L983] CALL, EXPR valid_product() [L88] int retValue_acc ; [L91] retValue_acc = 1 [L92] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L983] RET, EXPR valid_product() [L983] tmp = valid_product() [L985] COND TRUE \read(tmp) [L987] FCALL setup() [L988] CALL runTest() [L970] CALL test() [L102] int splverifierCounter ; [L103] int tmp ; [L104] int tmp___0 ; [L105] int tmp___1 ; [L106] int tmp___2 ; [L109] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L111] COND TRUE 1 [L113] COND TRUE splverifierCounter < 4 [L119] tmp = __VERIFIER_nondet_int() [L121] COND FALSE !(\read(tmp)) [L129] tmp___0 = __VERIFIER_nondet_int() [L131] COND FALSE !(\read(tmp___0)) [L139] tmp___2 = __VERIFIER_nondet_int() [L141] COND TRUE \read(tmp___2) [L154] CALL timeShift() [L183] COND FALSE !(\read(pumpRunning)) [L190] COND TRUE \read(systemActive) [L192] CALL processEnvironment() [L264] int tmp ; [L267] COND FALSE !(\read(pumpRunning)) [L282] CALL processEnvironment__wrappee__lowWaterSensor() [L238] int tmp ; [L241] COND FALSE !(\read(pumpRunning)) [L256] CALL processEnvironment__wrappee__highWaterSensor() [L212] int tmp ; [L215] COND TRUE ! pumpRunning [L217] CALL, EXPR isHighWaterLevel() [L361] int retValue_acc ; [L362] int tmp ; [L363] int tmp___0 ; [L367] CALL, EXPR isHighWaterSensorDry() [L480] int retValue_acc ; [L483] COND TRUE waterLevel < 2 [L484] retValue_acc = 1 [L485] return (retValue_acc); [L367] RET, EXPR isHighWaterSensorDry() [L367] tmp = isHighWaterSensorDry() [L369] COND TRUE \read(tmp) [L370] tmp___0 = 0 [L374] retValue_acc = tmp___0 [L375] return (retValue_acc); [L217] RET, EXPR isHighWaterLevel() [L217] tmp = isHighWaterLevel() [L219] COND FALSE !(\read(tmp)) [L225] FCALL processEnvironment__wrappee__base() [L256] RET processEnvironment__wrappee__highWaterSensor() [L282] RET processEnvironment__wrappee__lowWaterSensor() [L192] RET processEnvironment() [L198] CALL __utac_acc__Specification3_spec__1() [L504] int tmp ; [L505] int tmp___0 ; [L506] int tmp___1 ; [L510] CALL, EXPR isMethaneLevelCritical() [L439] int retValue_acc ; [L442] retValue_acc = methaneLevelCritical [L443] return (retValue_acc); [L510] RET, EXPR isMethaneLevelCritical() [L510] tmp = isMethaneLevelCritical() [L512] COND FALSE !(\read(tmp)) [L516] CALL, EXPR getWaterLevel() [L471] int retValue_acc ; [L474] retValue_acc = waterLevel [L475] return (retValue_acc); [L516] RET, EXPR getWaterLevel() [L516] tmp___0 = getWaterLevel() [L518] COND FALSE !(tmp___0 == 2) [L198] RET __utac_acc__Specification3_spec__1() [L154] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-19 14:58:08,558 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, 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)