./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product54.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_product54.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 cbcb1e9315abec7fabb6a689d6a1c811fb94154c71589df191460c14d014c3cb --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 14:58:01,184 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 14:58:01,252 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-19 14:58:01,258 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 14:58:01,259 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 14:58:01,282 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 14:58:01,282 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 14:58:01,283 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 14:58:01,283 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 14:58:01,284 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 14:58:01,284 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 14:58:01,284 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 14:58:01,285 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 14:58:01,287 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-19 14:58:01,287 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-19 14:58:01,288 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-19 14:58:01,289 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-19 14:58:01,289 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-19 14:58:01,292 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-19 14:58:01,293 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 14:58:01,293 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-19 14:58:01,294 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 14:58:01,294 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 14:58:01,294 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 14:58:01,294 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 14:58:01,294 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-19 14:58:01,295 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-19 14:58:01,295 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-19 14:58:01,295 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 14:58:01,295 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 14:58:01,296 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 14:58:01,296 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 14:58:01,296 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-19 14:58:01,296 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 14:58:01,297 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 14:58:01,297 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 14:58:01,299 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 14:58:01,299 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 14:58:01,300 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-19 14:58:01,300 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cbcb1e9315abec7fabb6a689d6a1c811fb94154c71589df191460c14d014c3cb [2024-11-19 14:58:01,540 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 14:58:01,564 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 14:58:01,567 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 14:58:01,569 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 14:58:01,569 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 14:58:01,570 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product54.cil.c [2024-11-19 14:58:03,100 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 14:58:03,326 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 14:58:03,326 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product54.cil.c [2024-11-19 14:58:03,349 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b3eed5f9/95a3f7609cad49bd83deb4191899bc85/FLAG1f5ac92e3 [2024-11-19 14:58:03,364 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b3eed5f9/95a3f7609cad49bd83deb4191899bc85 [2024-11-19 14:58:03,367 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 14:58:03,369 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 14:58:03,371 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 14:58:03,372 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 14:58:03,378 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 14:58:03,379 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:58:03" (1/1) ... [2024-11-19 14:58:03,380 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52d02822 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 14:58:03,380 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:58:03" (1/1) ... [2024-11-19 14:58:03,430 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 14:58:03,753 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 14:58:03,770 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 14:58:03,778 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [49] [2024-11-19 14:58:03,780 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [160] [2024-11-19 14:58:03,780 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [262] [2024-11-19 14:58:03,780 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [271] [2024-11-19 14:58:03,780 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [306] [2024-11-19 14:58:03,781 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [341] [2024-11-19 14:58:03,781 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [707] [2024-11-19 14:58:03,781 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [775] [2024-11-19 14:58:03,855 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 14:58:03,885 INFO L204 MainTranslator]: Completed translation [2024-11-19 14:58:03,885 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:58:03 WrapperNode [2024-11-19 14:58:03,886 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 14:58:03,887 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 14:58:03,887 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 14:58:03,887 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 14:58:03,895 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:58:03" (1/1) ... [2024-11-19 14:58:03,909 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:58:03" (1/1) ... [2024-11-19 14:58:03,954 INFO L138 Inliner]: procedures = 57, calls = 105, calls flagged for inlining = 58, calls inlined = 144, statements flattened = 987 [2024-11-19 14:58:03,955 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 14:58:03,956 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 14:58:03,956 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 14:58:03,956 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 14:58:03,965 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:58:03" (1/1) ... [2024-11-19 14:58:03,966 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:58:03" (1/1) ... [2024-11-19 14:58:03,971 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:58:03" (1/1) ... [2024-11-19 14:58:03,990 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 14:58:03,991 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:58:03" (1/1) ... [2024-11-19 14:58:03,991 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:58:03" (1/1) ... [2024-11-19 14:58:04,005 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:58:03" (1/1) ... [2024-11-19 14:58:04,013 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:58:03" (1/1) ... [2024-11-19 14:58:04,016 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:58:03" (1/1) ... [2024-11-19 14:58:04,020 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:58:03" (1/1) ... [2024-11-19 14:58:04,025 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 14:58:04,030 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 14:58:04,030 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 14:58:04,030 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 14:58:04,031 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:58:03" (1/1) ... [2024-11-19 14:58:04,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:58:04,072 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:58:04,097 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 14:58:04,107 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 14:58:04,153 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 14:58:04,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 14:58:04,153 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 14:58:04,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 14:58:04,238 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 14:58:04,242 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 14:58:04,881 INFO L? ?]: Removed 247 outVars from TransFormulas that were not future-live. [2024-11-19 14:58:04,882 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 14:58:04,909 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 14:58:04,909 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-19 14:58:04,909 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:58:04 BoogieIcfgContainer [2024-11-19 14:58:04,909 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 14:58:04,910 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-19 14:58:04,910 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-19 14:58:04,916 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-19 14:58:04,917 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-19 14:58:04,918 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 02:58:03" (1/3) ... [2024-11-19 14:58:04,918 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@132deee5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 02:58:04, skipping insertion in model container [2024-11-19 14:58:04,919 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-19 14:58:04,919 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:58:03" (2/3) ... [2024-11-19 14:58:04,920 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@132deee5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 02:58:04, skipping insertion in model container [2024-11-19 14:58:04,920 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-19 14:58:04,921 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:58:04" (3/3) ... [2024-11-19 14:58:04,922 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product54.cil.c [2024-11-19 14:58:04,975 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-19 14:58:04,975 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-19 14:58:04,975 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-19 14:58:04,976 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-19 14:58:04,976 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-19 14:58:04,976 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-19 14:58:04,976 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-19 14:58:04,976 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-19 14:58:04,981 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 280 states, 279 states have (on average 1.3691756272401434) internal successors, (382), 279 states have internal predecessors, (382), 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 14:58:05,008 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 183 [2024-11-19 14:58:05,009 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-19 14:58:05,009 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-19 14:58:05,017 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:58:05,017 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:58:05,017 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-19 14:58:05,019 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 280 states, 279 states have (on average 1.3691756272401434) internal successors, (382), 279 states have internal predecessors, (382), 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 14:58:05,030 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 183 [2024-11-19 14:58:05,030 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-19 14:58:05,030 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-19 14:58:05,031 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:58:05,032 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:58:05,037 INFO L745 eck$LassoCheckResult]: Stem: 175#$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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 187#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret9#1, main_~retValue_acc~4#1, main_~tmp~0#1;havoc main_~retValue_acc~4#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 27#select_helpers_returnLabel#1true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 250#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~6#1;havoc valid_product_~retValue_acc~6#1;valid_product_~retValue_acc~6#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~6#1; 106#valid_product_returnLabel#1true main_#t~ret9#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~6#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret9#1;havoc main_#t~ret9#1; 7#L249true assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 85#setup_returnLabel#1true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 30#L719-2true [2024-11-19 14:58:05,038 INFO L747 eck$LassoCheckResult]: Loop: 30#L719-2true assume !false; 36#L720true assume test_~splverifierCounter~0#1 < 4; 98#L721true havoc test_#t~nondet37#1;test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 180#L729true assume !(0 != test_~tmp~5#1); 102#L729-2true havoc test_#t~nondet38#1;test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 2#L739true assume !(0 != test_~tmp___0~1#1); 255#L739-2true havoc test_#t~nondet39#1;test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 156#L749true assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet40#1;test_~tmp___1~1#1 := test_#t~nondet40#1;havoc test_#t~nondet40#1; 71#L757true assume 0 != test_~tmp___1~1#1; 199#L757-2true assume { :begin_inline_timeShift } true; 272#L785true assume !(0 != ~pumpRunning~0); 117#L785-2true assume !(0 != ~systemActive~0); 76#L792-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret10#1, __utac_acc__Specification3_spec__1_#t~ret11#1, __utac_acc__Specification3_spec__1_#t~ret12#1, __utac_acc__Specification3_spec__1_~tmp~1#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~1#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 216#isMethaneLevelCritical_returnLabel#2true __utac_acc__Specification3_spec__1_#t~ret10#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~1#1 := __utac_acc__Specification3_spec__1_#t~ret10#1;havoc __utac_acc__Specification3_spec__1_#t~ret10#1; 155#L282true assume 0 != __utac_acc__Specification3_spec__1_~tmp~1#1; 212#L288-1true havoc __utac_acc__Specification3_spec__1_#t~ret10#1, __utac_acc__Specification3_spec__1_#t~ret11#1, __utac_acc__Specification3_spec__1_#t~ret12#1, __utac_acc__Specification3_spec__1_~tmp~1#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 207#timeShift_returnLabel#1true assume { :end_inline_timeShift } true; 30#L719-2true [2024-11-19 14:58:05,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:58:05,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2024-11-19 14:58:05,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:58:05,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210448012] [2024-11-19 14:58:05,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:58:05,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:58:05,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:58:05,158 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 14:58:05,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:58:05,207 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 14:58:05,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:58:05,210 INFO L85 PathProgramCache]: Analyzing trace with hash 1150963220, now seen corresponding path program 1 times [2024-11-19 14:58:05,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:58:05,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750519684] [2024-11-19 14:58:05,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:58:05,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:58:05,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:58:05,223 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 14:58:05,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:58:05,232 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 14:58:05,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:58:05,234 INFO L85 PathProgramCache]: Analyzing trace with hash 219281616, now seen corresponding path program 1 times [2024-11-19 14:58:05,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:58:05,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290468331] [2024-11-19 14:58:05,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:58:05,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:58:05,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:58:05,473 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 14:58:05,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:58:05,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290468331] [2024-11-19 14:58:05,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290468331] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:58:05,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:58:05,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 14:58:05,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949744136] [2024-11-19 14:58:05,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:58:05,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:58:05,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 14:58:05,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 14:58:05,599 INFO L87 Difference]: Start difference. First operand has 280 states, 279 states have (on average 1.3691756272401434) internal successors, (382), 279 states have internal predecessors, (382), 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 4.0) internal successors, (24), 5 states have internal predecessors, (24), 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 14:58:05,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 14:58:05,689 INFO L93 Difference]: Finished difference Result 274 states and 365 transitions. [2024-11-19 14:58:05,690 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 274 states and 365 transitions. [2024-11-19 14:58:05,698 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 177 [2024-11-19 14:58:05,704 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 274 states to 264 states and 355 transitions. [2024-11-19 14:58:05,705 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 264 [2024-11-19 14:58:05,706 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 264 [2024-11-19 14:58:05,707 INFO L73 IsDeterministic]: Start isDeterministic. Operand 264 states and 355 transitions. [2024-11-19 14:58:05,708 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-19 14:58:05,708 INFO L218 hiAutomatonCegarLoop]: Abstraction has 264 states and 355 transitions. [2024-11-19 14:58:05,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states and 355 transitions. [2024-11-19 14:58:05,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 264. [2024-11-19 14:58:05,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 264 states have (on average 1.3446969696969697) internal successors, (355), 263 states have internal predecessors, (355), 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 14:58:05,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 355 transitions. [2024-11-19 14:58:05,747 INFO L240 hiAutomatonCegarLoop]: Abstraction has 264 states and 355 transitions. [2024-11-19 14:58:05,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 14:58:05,752 INFO L425 stractBuchiCegarLoop]: Abstraction has 264 states and 355 transitions. [2024-11-19 14:58:05,752 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-19 14:58:05,752 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 264 states and 355 transitions. [2024-11-19 14:58:05,754 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 177 [2024-11-19 14:58:05,754 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-19 14:58:05,754 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-19 14:58:05,755 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:58:05,755 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:58:05,756 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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 801#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret9#1, main_~retValue_acc~4#1, main_~tmp~0#1;havoc main_~retValue_acc~4#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 622#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 623#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~6#1;havoc valid_product_~retValue_acc~6#1;valid_product_~retValue_acc~6#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~6#1; 742#valid_product_returnLabel#1 main_#t~ret9#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~6#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret9#1;havoc main_#t~ret9#1; 581#L249 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 582#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 627#L719-2 [2024-11-19 14:58:05,756 INFO L747 eck$LassoCheckResult]: Loop: 627#L719-2 assume !false; 628#L720 assume test_~splverifierCounter~0#1 < 4; 636#L721 havoc test_#t~nondet37#1;test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 732#L729 assume !(0 != test_~tmp~5#1); 737#L729-2 havoc test_#t~nondet38#1;test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 572#L739 assume !(0 != test_~tmp___0~1#1); 574#L739-2 havoc test_#t~nondet39#1;test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 786#L749 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 688#startSystem_returnLabel#1 assume { :end_inline_startSystem } true; 689#L757-2 assume { :begin_inline_timeShift } true; 813#L785 assume !(0 != ~pumpRunning~0); 750#L785-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret43#1, processEnvironment_~tmp~8#1;havoc processEnvironment_~tmp~8#1; 683#L869 assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret44#1, isMethaneAlarm_~retValue_acc~10#1;havoc isMethaneAlarm_~retValue_acc~10#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 684#isMethaneLevelCritical_returnLabel#1 isMethaneAlarm_#t~ret44#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~10#1 := isMethaneAlarm_#t~ret44#1;havoc isMethaneAlarm_#t~ret44#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~10#1; 832#isMethaneAlarm_returnLabel#1 processEnvironment_#t~ret43#1 := isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret44#1, isMethaneAlarm_~retValue_acc~10#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~8#1 := processEnvironment_#t~ret43#1;havoc processEnvironment_#t~ret43#1; 667#L873 assume 0 != processEnvironment_~tmp~8#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; 668#deactivatePump_returnLabel#1 assume { :end_inline_deactivatePump } true; 630#L869-1 havoc processEnvironment_#t~ret43#1, processEnvironment_~tmp~8#1;assume { :end_inline_processEnvironment } true; 702#L792-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret10#1, __utac_acc__Specification3_spec__1_#t~ret11#1, __utac_acc__Specification3_spec__1_#t~ret12#1, __utac_acc__Specification3_spec__1_~tmp~1#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~1#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 703#isMethaneLevelCritical_returnLabel#2 __utac_acc__Specification3_spec__1_#t~ret10#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~1#1 := __utac_acc__Specification3_spec__1_#t~ret10#1;havoc __utac_acc__Specification3_spec__1_#t~ret10#1; 784#L282 assume 0 != __utac_acc__Specification3_spec__1_~tmp~1#1; 633#L288-1 havoc __utac_acc__Specification3_spec__1_#t~ret10#1, __utac_acc__Specification3_spec__1_#t~ret11#1, __utac_acc__Specification3_spec__1_#t~ret12#1, __utac_acc__Specification3_spec__1_~tmp~1#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 816#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 627#L719-2 [2024-11-19 14:58:05,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:58:05,757 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2024-11-19 14:58:05,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:58:05,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136628421] [2024-11-19 14:58:05,757 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 14:58:05,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:58:05,769 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 14:58:05,769 INFO L228 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-19 14:58:05,770 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 14:58:05,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:58:05,779 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 14:58:05,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:58:05,780 INFO L85 PathProgramCache]: Analyzing trace with hash -680389348, now seen corresponding path program 1 times [2024-11-19 14:58:05,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:58:05,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454116956] [2024-11-19 14:58:05,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:58:05,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:58:05,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:58:05,814 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 14:58:05,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:58:05,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454116956] [2024-11-19 14:58:05,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454116956] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:58:05,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:58:05,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 14:58:05,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068570349] [2024-11-19 14:58:05,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:58:05,817 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-19 14:58:05,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:58:05,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 14:58:05,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 14:58:05,819 INFO L87 Difference]: Start difference. First operand 264 states and 355 transitions. cyclomatic complexity: 93 Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:58:05,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 14:58:05,944 INFO L93 Difference]: Finished difference Result 281 states and 358 transitions. [2024-11-19 14:58:05,944 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 281 states and 358 transitions. [2024-11-19 14:58:05,946 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 194 [2024-11-19 14:58:05,951 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 281 states to 281 states and 358 transitions. [2024-11-19 14:58:05,952 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 281 [2024-11-19 14:58:05,952 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 281 [2024-11-19 14:58:05,953 INFO L73 IsDeterministic]: Start isDeterministic. Operand 281 states and 358 transitions. [2024-11-19 14:58:05,954 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-19 14:58:05,954 INFO L218 hiAutomatonCegarLoop]: Abstraction has 281 states and 358 transitions. [2024-11-19 14:58:05,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states and 358 transitions. [2024-11-19 14:58:05,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 281. [2024-11-19 14:58:05,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 281 states have (on average 1.2740213523131672) internal successors, (358), 280 states have internal predecessors, (358), 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 14:58:05,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 358 transitions. [2024-11-19 14:58:05,969 INFO L240 hiAutomatonCegarLoop]: Abstraction has 281 states and 358 transitions. [2024-11-19 14:58:05,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 14:58:05,970 INFO L425 stractBuchiCegarLoop]: Abstraction has 281 states and 358 transitions. [2024-11-19 14:58:05,971 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-19 14:58:05,971 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 281 states and 358 transitions. [2024-11-19 14:58:05,972 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 194 [2024-11-19 14:58:05,972 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-19 14:58:05,973 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-19 14:58:05,974 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:58:05,976 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] [2024-11-19 14:58:05,976 INFO L745 eck$LassoCheckResult]: Stem: 1313#$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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 1314#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret9#1, main_~retValue_acc~4#1, main_~tmp~0#1;havoc main_~retValue_acc~4#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 1157#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1158#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~6#1;havoc valid_product_~retValue_acc~6#1;valid_product_~retValue_acc~6#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~6#1; 1259#valid_product_returnLabel#1 main_#t~ret9#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~6#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret9#1;havoc main_#t~ret9#1; 1130#L249 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 1131#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1159#L719-2 [2024-11-19 14:58:05,976 INFO L747 eck$LassoCheckResult]: Loop: 1159#L719-2 assume !false; 1160#L720 assume test_~splverifierCounter~0#1 < 4; 1166#L721 havoc test_#t~nondet37#1;test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 1251#L729 assume !(0 != test_~tmp~5#1); 1257#L729-2 havoc test_#t~nondet38#1;test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 1123#L739 assume !(0 != test_~tmp___0~1#1); 1125#L739-2 havoc test_#t~nondet39#1;test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 1299#L749 assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet40#1;test_~tmp___1~1#1 := test_#t~nondet40#1;havoc test_#t~nondet40#1; 1216#L757 assume 0 != test_~tmp___1~1#1; 1208#L757-2 assume { :begin_inline_timeShift } true; 1328#L785 assume !(0 != ~pumpRunning~0); 1270#L785-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret43#1, processEnvironment_~tmp~8#1;havoc processEnvironment_~tmp~8#1; 1205#L869 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret42#1, processEnvironment__wrappee__lowWaterSensor_~tmp~7#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~7#1; 1206#L843-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret41#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6#1; 1153#L817-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret53#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~9#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~12#1;havoc isHighWaterLevel_~tmp~9#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; 1154#L141-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 1341#isHighWaterSensorDry_returnLabel#4 isHighWaterLevel_#t~ret53#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~9#1 := isHighWaterLevel_#t~ret53#1;havoc isHighWaterLevel_#t~ret53#1; 1283#L971-9 assume 0 != isHighWaterLevel_~tmp~9#1;isHighWaterLevel_~tmp___0~2#1 := 0; 1247#L971-11 isHighWaterLevel_~retValue_acc~12#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1; 1248#isHighWaterLevel_returnLabel#4 processEnvironment__wrappee__highWaterSensor_#t~ret41#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret53#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~9#1, isHighWaterLevel_~tmp___0~2#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~6#1 := processEnvironment__wrappee__highWaterSensor_#t~ret41#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret41#1; 1321#L821-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1276#processEnvironment__wrappee__base_returnLabel#7 assume { :end_inline_processEnvironment__wrappee__base } true; 1147#L817-7 havoc processEnvironment__wrappee__highWaterSensor_#t~ret41#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1148#L843-3 havoc processEnvironment__wrappee__lowWaterSensor_#t~ret42#1, processEnvironment__wrappee__lowWaterSensor_~tmp~7#1;assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 1162#L869-1 havoc processEnvironment_#t~ret43#1, processEnvironment_~tmp~8#1;assume { :end_inline_processEnvironment } true; 1224#L792-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret10#1, __utac_acc__Specification3_spec__1_#t~ret11#1, __utac_acc__Specification3_spec__1_#t~ret12#1, __utac_acc__Specification3_spec__1_~tmp~1#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~1#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 1225#isMethaneLevelCritical_returnLabel#2 __utac_acc__Specification3_spec__1_#t~ret10#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~1#1 := __utac_acc__Specification3_spec__1_#t~ret10#1;havoc __utac_acc__Specification3_spec__1_#t~ret10#1; 1297#L282 assume 0 != __utac_acc__Specification3_spec__1_~tmp~1#1; 1165#L288-1 havoc __utac_acc__Specification3_spec__1_#t~ret10#1, __utac_acc__Specification3_spec__1_#t~ret11#1, __utac_acc__Specification3_spec__1_#t~ret12#1, __utac_acc__Specification3_spec__1_~tmp~1#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1330#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1159#L719-2 [2024-11-19 14:58:05,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:58:05,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2024-11-19 14:58:05,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:58:05,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713660402] [2024-11-19 14:58:05,978 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 14:58:05,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:58:05,988 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-19 14:58:05,989 INFO L228 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-19 14:58:05,989 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 14:58:06,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:58:06,003 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 14:58:06,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:58:06,004 INFO L85 PathProgramCache]: Analyzing trace with hash -430221184, now seen corresponding path program 1 times [2024-11-19 14:58:06,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:58:06,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063016945] [2024-11-19 14:58:06,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:58:06,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:58:06,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:58:06,017 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 14:58:06,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:58:06,025 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 14:58:06,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:58:06,025 INFO L85 PathProgramCache]: Analyzing trace with hash -33030332, now seen corresponding path program 1 times [2024-11-19 14:58:06,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:58:06,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993368327] [2024-11-19 14:58:06,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:58:06,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:58:06,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:58:06,205 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 14:58:06,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:58:06,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993368327] [2024-11-19 14:58:06,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993368327] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:58:06,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:58:06,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 14:58:06,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635540991] [2024-11-19 14:58:06,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:58:06,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:58:06,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 14:58:06,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 14:58:06,334 INFO L87 Difference]: Start difference. First operand 281 states and 358 transitions. cyclomatic complexity: 79 Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 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 14:58:06,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 14:58:06,425 INFO L93 Difference]: Finished difference Result 555 states and 701 transitions. [2024-11-19 14:58:06,425 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 555 states and 701 transitions. [2024-11-19 14:58:06,429 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 388 [2024-11-19 14:58:06,431 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 555 states to 555 states and 701 transitions. [2024-11-19 14:58:06,432 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 555 [2024-11-19 14:58:06,432 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 555 [2024-11-19 14:58:06,432 INFO L73 IsDeterministic]: Start isDeterministic. Operand 555 states and 701 transitions. [2024-11-19 14:58:06,435 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-19 14:58:06,438 INFO L218 hiAutomatonCegarLoop]: Abstraction has 555 states and 701 transitions. [2024-11-19 14:58:06,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states and 701 transitions. [2024-11-19 14:58:06,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2024-11-19 14:58:06,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 555 states have (on average 1.263063063063063) internal successors, (701), 554 states have internal predecessors, (701), 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 14:58:06,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 701 transitions. [2024-11-19 14:58:06,470 INFO L240 hiAutomatonCegarLoop]: Abstraction has 555 states and 701 transitions. [2024-11-19 14:58:06,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 14:58:06,471 INFO L425 stractBuchiCegarLoop]: Abstraction has 555 states and 701 transitions. [2024-11-19 14:58:06,471 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-19 14:58:06,471 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 555 states and 701 transitions. [2024-11-19 14:58:06,474 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 388 [2024-11-19 14:58:06,475 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-19 14:58:06,475 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-19 14:58:06,476 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:58:06,476 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, 1] [2024-11-19 14:58:06,476 INFO L745 eck$LassoCheckResult]: Stem: 2180#$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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 2181#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret9#1, main_~retValue_acc~4#1, main_~tmp~0#1;havoc main_~retValue_acc~4#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 2006#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2007#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~6#1;havoc valid_product_~retValue_acc~6#1;valid_product_~retValue_acc~6#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~6#1; 2117#valid_product_returnLabel#1 main_#t~ret9#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~6#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret9#1;havoc main_#t~ret9#1; 1980#L249 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 1981#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2088#L719-2 [2024-11-19 14:58:06,476 INFO L747 eck$LassoCheckResult]: Loop: 2088#L719-2 assume !false; 2017#L720 assume test_~splverifierCounter~0#1 < 4; 2018#L721 havoc test_#t~nondet37#1;test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 2338#L729 assume !(0 != test_~tmp~5#1); 2334#L729-2 havoc test_#t~nondet38#1;test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 2329#L739 assume !(0 != test_~tmp___0~1#1); 1989#L739-2 havoc test_#t~nondet39#1;test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 2164#L749 assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet40#1;test_~tmp___1~1#1 := test_#t~nondet40#1;havoc test_#t~nondet40#1; 2066#L757 assume 0 != test_~tmp___1~1#1; 2060#L757-2 assume { :begin_inline_timeShift } true; 2199#L785 assume !(0 != ~pumpRunning~0); 2244#L785-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret43#1, processEnvironment_~tmp~8#1;havoc processEnvironment_~tmp~8#1; 2057#L869 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret42#1, processEnvironment__wrappee__lowWaterSensor_~tmp~7#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~7#1; 2058#L843-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret41#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6#1; 2004#L817-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret53#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~9#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~12#1;havoc isHighWaterLevel_~tmp~9#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; 2005#L141-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 2291#isHighWaterSensorDry_returnLabel#4 isHighWaterLevel_#t~ret53#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~9#1 := isHighWaterLevel_#t~ret53#1;havoc isHighWaterLevel_#t~ret53#1; 2287#L971-9 assume 0 != isHighWaterLevel_~tmp~9#1;isHighWaterLevel_~tmp___0~2#1 := 0; 2102#L971-11 isHighWaterLevel_~retValue_acc~12#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1; 2103#isHighWaterLevel_returnLabel#4 processEnvironment__wrappee__highWaterSensor_#t~ret41#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret53#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~9#1, isHighWaterLevel_~tmp___0~2#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~6#1 := processEnvironment__wrappee__highWaterSensor_#t~ret41#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret41#1; 2210#L821-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2135#processEnvironment__wrappee__base_returnLabel#7 assume { :end_inline_processEnvironment__wrappee__base } true; 2136#L817-7 havoc processEnvironment__wrappee__highWaterSensor_#t~ret41#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 2156#L843-3 havoc processEnvironment__wrappee__lowWaterSensor_#t~ret42#1, processEnvironment__wrappee__lowWaterSensor_~tmp~7#1;assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 2013#L869-1 havoc processEnvironment_#t~ret43#1, processEnvironment_~tmp~8#1;assume { :end_inline_processEnvironment } true; 2352#L792-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret10#1, __utac_acc__Specification3_spec__1_#t~ret11#1, __utac_acc__Specification3_spec__1_#t~ret12#1, __utac_acc__Specification3_spec__1_~tmp~1#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~1#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 2351#isMethaneLevelCritical_returnLabel#2 __utac_acc__Specification3_spec__1_#t~ret10#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~1#1 := __utac_acc__Specification3_spec__1_#t~ret10#1;havoc __utac_acc__Specification3_spec__1_#t~ret10#1; 2350#L282 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~1#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 2349#getWaterLevel_returnLabel#1 __utac_acc__Specification3_spec__1_#t~ret11#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~0#1 := __utac_acc__Specification3_spec__1_#t~ret11#1;havoc __utac_acc__Specification3_spec__1_#t~ret11#1; 2342#L288 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0#1); 2340#L288-1 havoc __utac_acc__Specification3_spec__1_#t~ret10#1, __utac_acc__Specification3_spec__1_#t~ret11#1, __utac_acc__Specification3_spec__1_#t~ret12#1, __utac_acc__Specification3_spec__1_~tmp~1#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 2335#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 2088#L719-2 [2024-11-19 14:58:06,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:58:06,477 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2024-11-19 14:58:06,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:58:06,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544025261] [2024-11-19 14:58:06,478 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 14:58:06,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:58:06,487 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 14:58:06,488 INFO L228 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-19 14:58:06,488 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 14:58:06,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:58:06,495 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 14:58:06,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:58:06,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1124499563, now seen corresponding path program 1 times [2024-11-19 14:58:06,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:58:06,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765410643] [2024-11-19 14:58:06,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:58:06,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:58:06,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:58:06,506 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 14:58:06,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:58:06,515 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 14:58:06,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:58:06,519 INFO L85 PathProgramCache]: Analyzing trace with hash -1676180135, now seen corresponding path program 1 times [2024-11-19 14:58:06,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:58:06,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457393974] [2024-11-19 14:58:06,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:58:06,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:58:06,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:58:06,531 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 14:58:06,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:58:06,549 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 14:58:07,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:58:07,414 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 14:58:07,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:58:07,479 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 02:58:07 BoogieIcfgContainer [2024-11-19 14:58:07,481 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-19 14:58:07,481 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-19 14:58:07,482 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-19 14:58:07,482 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-19 14:58:07,482 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:58:04" (3/4) ... [2024-11-19 14:58:07,484 INFO L139 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-19 14:58:07,550 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-19 14:58:07,550 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-19 14:58:07,551 INFO L158 Benchmark]: Toolchain (without parser) took 4182.15ms. Allocated memory was 151.0MB in the beginning and 192.9MB in the end (delta: 41.9MB). Free memory was 94.8MB in the beginning and 104.2MB in the end (delta: -9.5MB). Peak memory consumption was 33.8MB. Max. memory is 16.1GB. [2024-11-19 14:58:07,552 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 151.0MB. Free memory is still 85.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 14:58:07,552 INFO L158 Benchmark]: CACSL2BoogieTranslator took 515.37ms. Allocated memory is still 151.0MB. Free memory was 94.8MB in the beginning and 73.1MB in the end (delta: 21.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-19 14:58:07,552 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.11ms. Allocated memory is still 151.0MB. Free memory was 73.1MB in the beginning and 69.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-19 14:58:07,553 INFO L158 Benchmark]: Boogie Preprocessor took 69.77ms. Allocated memory is still 151.0MB. Free memory was 69.0MB in the beginning and 64.0MB in the end (delta: 5.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-19 14:58:07,553 INFO L158 Benchmark]: RCFGBuilder took 879.44ms. Allocated memory was 151.0MB in the beginning and 192.9MB in the end (delta: 41.9MB). Free memory was 64.0MB in the beginning and 138.5MB in the end (delta: -74.5MB). Peak memory consumption was 34.2MB. Max. memory is 16.1GB. [2024-11-19 14:58:07,556 INFO L158 Benchmark]: BuchiAutomizer took 2570.62ms. Allocated memory is still 192.9MB. Free memory was 138.5MB in the beginning and 107.4MB in the end (delta: 31.1MB). Peak memory consumption was 31.1MB. Max. memory is 16.1GB. [2024-11-19 14:58:07,556 INFO L158 Benchmark]: Witness Printer took 68.87ms. Allocated memory is still 192.9MB. Free memory was 107.4MB in the beginning and 104.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 14:58:07,558 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 151.0MB. Free memory is still 85.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 515.37ms. Allocated memory is still 151.0MB. Free memory was 94.8MB in the beginning and 73.1MB in the end (delta: 21.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.11ms. Allocated memory is still 151.0MB. Free memory was 73.1MB in the beginning and 69.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 69.77ms. Allocated memory is still 151.0MB. Free memory was 69.0MB in the beginning and 64.0MB in the end (delta: 5.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 879.44ms. Allocated memory was 151.0MB in the beginning and 192.9MB in the end (delta: 41.9MB). Free memory was 64.0MB in the beginning and 138.5MB in the end (delta: -74.5MB). Peak memory consumption was 34.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 2570.62ms. Allocated memory is still 192.9MB. Free memory was 138.5MB in the beginning and 107.4MB in the end (delta: 31.1MB). Peak memory consumption was 31.1MB. Max. memory is 16.1GB. * Witness Printer took 68.87ms. Allocated memory is still 192.9MB. Free memory was 107.4MB in the beginning and 104.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [49] - GenericResultAtLocation [Line: 160]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [160] - GenericResultAtLocation [Line: 262]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [262] - GenericResultAtLocation [Line: 271]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [271] - GenericResultAtLocation [Line: 306]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [306] - GenericResultAtLocation [Line: 341]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [341] - GenericResultAtLocation [Line: 707]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [707] - GenericResultAtLocation [Line: 775]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [775] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 555 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.4s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 1.9s. Construction of modules took 0.1s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 783 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 783 mSDsluCounter, 2805 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1796 mSDsCounter, 48 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 126 IncrementalHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 48 mSolverCounterUnsat, 1009 mSDtfsCounter, 126 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 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: 719]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L58] int waterLevel = 1; [L59] int methaneLevelCritical = 0; [L161] int cleanupTimeShifts = 4; [L511] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L778] int pumpRunning = 0; [L779] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L240] int retValue_acc ; [L241] int tmp ; [L245] FCALL select_helpers() [L246] FCALL select_features() [L247] CALL, EXPR valid_product() [L333] int retValue_acc ; [L336] retValue_acc = 1 [L337] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L247] RET, EXPR valid_product() [L247] tmp = valid_product() [L249] COND TRUE \read(tmp) [L251] FCALL setup() [L252] CALL runTest() [L231] CALL test() [L710] int splverifierCounter ; [L711] int tmp ; [L712] int tmp___0 ; [L713] int tmp___1 ; [L714] int tmp___2 ; [L717] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L719] COND TRUE 1 [L721] COND TRUE splverifierCounter < 4 [L727] tmp = __VERIFIER_nondet_int() [L729] COND FALSE !(\read(tmp)) [L737] tmp___0 = __VERIFIER_nondet_int() [L739] COND FALSE !(\read(tmp___0)) [L747] tmp___2 = __VERIFIER_nondet_int() [L749] COND FALSE !(\read(tmp___2)) [L755] tmp___1 = __VERIFIER_nondet_int() [L757] COND TRUE \read(tmp___1) [L764] CALL timeShift() [L785] COND FALSE !(\read(pumpRunning)) [L792] COND TRUE \read(systemActive) [L794] CALL processEnvironment() [L866] int tmp ; [L869] COND FALSE !(\read(pumpRunning)) [L884] CALL processEnvironment__wrappee__lowWaterSensor() [L840] int tmp ; [L843] COND FALSE !(\read(pumpRunning)) [L858] CALL processEnvironment__wrappee__highWaterSensor() [L814] int tmp ; [L817] COND TRUE ! pumpRunning [L819] CALL, EXPR isHighWaterLevel() [L963] int retValue_acc ; [L964] int tmp ; [L965] int tmp___0 ; [L969] CALL, EXPR isHighWaterSensorDry() [L138] int retValue_acc ; [L141] COND TRUE waterLevel < 2 [L142] retValue_acc = 1 [L143] return (retValue_acc); [L969] RET, EXPR isHighWaterSensorDry() [L969] tmp = isHighWaterSensorDry() [L971] COND TRUE \read(tmp) [L972] tmp___0 = 0 [L976] retValue_acc = tmp___0 [L977] return (retValue_acc); [L819] RET, EXPR isHighWaterLevel() [L819] tmp = isHighWaterLevel() [L821] COND FALSE !(\read(tmp)) [L827] FCALL processEnvironment__wrappee__base() [L858] RET processEnvironment__wrappee__highWaterSensor() [L884] RET processEnvironment__wrappee__lowWaterSensor() [L794] RET processEnvironment() [L800] CALL __utac_acc__Specification3_spec__1() [L274] int tmp ; [L275] int tmp___0 ; [L276] int tmp___1 ; [L280] CALL, EXPR isMethaneLevelCritical() [L97] int retValue_acc ; [L100] retValue_acc = methaneLevelCritical [L101] return (retValue_acc); [L280] RET, EXPR isMethaneLevelCritical() [L280] tmp = isMethaneLevelCritical() [L282] COND FALSE !(\read(tmp)) [L286] CALL, EXPR getWaterLevel() [L129] int retValue_acc ; [L132] retValue_acc = waterLevel [L133] return (retValue_acc); [L286] RET, EXPR getWaterLevel() [L286] tmp___0 = getWaterLevel() [L288] COND FALSE !(tmp___0 == 2) [L800] RET __utac_acc__Specification3_spec__1() [L764] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 719]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L58] int waterLevel = 1; [L59] int methaneLevelCritical = 0; [L161] int cleanupTimeShifts = 4; [L511] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L778] int pumpRunning = 0; [L779] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L240] int retValue_acc ; [L241] int tmp ; [L245] FCALL select_helpers() [L246] FCALL select_features() [L247] CALL, EXPR valid_product() [L333] int retValue_acc ; [L336] retValue_acc = 1 [L337] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L247] RET, EXPR valid_product() [L247] tmp = valid_product() [L249] COND TRUE \read(tmp) [L251] FCALL setup() [L252] CALL runTest() [L231] CALL test() [L710] int splverifierCounter ; [L711] int tmp ; [L712] int tmp___0 ; [L713] int tmp___1 ; [L714] int tmp___2 ; [L717] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L719] COND TRUE 1 [L721] COND TRUE splverifierCounter < 4 [L727] tmp = __VERIFIER_nondet_int() [L729] COND FALSE !(\read(tmp)) [L737] tmp___0 = __VERIFIER_nondet_int() [L739] COND FALSE !(\read(tmp___0)) [L747] tmp___2 = __VERIFIER_nondet_int() [L749] COND FALSE !(\read(tmp___2)) [L755] tmp___1 = __VERIFIER_nondet_int() [L757] COND TRUE \read(tmp___1) [L764] CALL timeShift() [L785] COND FALSE !(\read(pumpRunning)) [L792] COND TRUE \read(systemActive) [L794] CALL processEnvironment() [L866] int tmp ; [L869] COND FALSE !(\read(pumpRunning)) [L884] CALL processEnvironment__wrappee__lowWaterSensor() [L840] int tmp ; [L843] COND FALSE !(\read(pumpRunning)) [L858] CALL processEnvironment__wrappee__highWaterSensor() [L814] int tmp ; [L817] COND TRUE ! pumpRunning [L819] CALL, EXPR isHighWaterLevel() [L963] int retValue_acc ; [L964] int tmp ; [L965] int tmp___0 ; [L969] CALL, EXPR isHighWaterSensorDry() [L138] int retValue_acc ; [L141] COND TRUE waterLevel < 2 [L142] retValue_acc = 1 [L143] return (retValue_acc); [L969] RET, EXPR isHighWaterSensorDry() [L969] tmp = isHighWaterSensorDry() [L971] COND TRUE \read(tmp) [L972] tmp___0 = 0 [L976] retValue_acc = tmp___0 [L977] return (retValue_acc); [L819] RET, EXPR isHighWaterLevel() [L819] tmp = isHighWaterLevel() [L821] COND FALSE !(\read(tmp)) [L827] FCALL processEnvironment__wrappee__base() [L858] RET processEnvironment__wrappee__highWaterSensor() [L884] RET processEnvironment__wrappee__lowWaterSensor() [L794] RET processEnvironment() [L800] CALL __utac_acc__Specification3_spec__1() [L274] int tmp ; [L275] int tmp___0 ; [L276] int tmp___1 ; [L280] CALL, EXPR isMethaneLevelCritical() [L97] int retValue_acc ; [L100] retValue_acc = methaneLevelCritical [L101] return (retValue_acc); [L280] RET, EXPR isMethaneLevelCritical() [L280] tmp = isMethaneLevelCritical() [L282] COND FALSE !(\read(tmp)) [L286] CALL, EXPR getWaterLevel() [L129] int retValue_acc ; [L132] retValue_acc = waterLevel [L133] return (retValue_acc); [L286] RET, EXPR getWaterLevel() [L286] tmp___0 = getWaterLevel() [L288] COND FALSE !(tmp___0 == 2) [L800] RET __utac_acc__Specification3_spec__1() [L764] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-19 14:58:07,588 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)