./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/termination.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product26.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product26.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 0cfd5986b9c6081aba994f88e5d05d10fdc0f15ef14be4c1b5ef95a6415946c3 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 17:37:57,864 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 17:37:57,952 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-10-13 17:37:57,957 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 17:37:57,958 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 17:37:57,994 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 17:37:57,995 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 17:37:57,996 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 17:37:57,997 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 17:37:57,999 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 17:37:58,000 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 17:37:58,000 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 17:37:58,000 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 17:37:58,001 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-10-13 17:37:58,003 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-10-13 17:37:58,003 INFO L153 SettingsManager]: * Use old map elimination=false [2024-10-13 17:37:58,004 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-10-13 17:37:58,004 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-10-13 17:37:58,004 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-10-13 17:37:58,005 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 17:37:58,005 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-10-13 17:37:58,008 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 17:37:58,009 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 17:37:58,009 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 17:37:58,009 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 17:37:58,010 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-10-13 17:37:58,010 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-10-13 17:37:58,010 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-10-13 17:37:58,011 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 17:37:58,011 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 17:37:58,011 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 17:37:58,011 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 17:37:58,012 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-10-13 17:37:58,012 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 17:37:58,012 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 17:37:58,013 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 17:37:58,013 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 17:37:58,013 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 17:37:58,014 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-10-13 17:37:58,014 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0cfd5986b9c6081aba994f88e5d05d10fdc0f15ef14be4c1b5ef95a6415946c3 [2024-10-13 17:37:58,277 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 17:37:58,300 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 17:37:58,304 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 17:37:58,305 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 17:37:58,306 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 17:37:58,307 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product26.cil.c [2024-10-13 17:37:59,832 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 17:38:00,060 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 17:38:00,061 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product26.cil.c [2024-10-13 17:38:00,073 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf710f3cc/f46c18fc9b81452487db1fd6a5382261/FLAG8e787a032 [2024-10-13 17:38:00,396 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf710f3cc/f46c18fc9b81452487db1fd6a5382261 [2024-10-13 17:38:00,398 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 17:38:00,399 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 17:38:00,400 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 17:38:00,400 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 17:38:00,407 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 17:38:00,410 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 05:38:00" (1/1) ... [2024-10-13 17:38:00,411 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fea68a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:38:00, skipping insertion in model container [2024-10-13 17:38:00,411 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 05:38:00" (1/1) ... [2024-10-13 17:38:00,449 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 17:38:00,743 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 17:38:00,763 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 17:38:00,774 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] [2024-10-13 17:38:00,775 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [87] [2024-10-13 17:38:00,775 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [183] [2024-10-13 17:38:00,776 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [211] [2024-10-13 17:38:00,776 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [310] [2024-10-13 17:38:00,776 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [491] [2024-10-13 17:38:00,776 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [857] [2024-10-13 17:38:00,776 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [924] [2024-10-13 17:38:00,847 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 17:38:00,875 INFO L204 MainTranslator]: Completed translation [2024-10-13 17:38:00,875 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:38:00 WrapperNode [2024-10-13 17:38:00,875 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 17:38:00,876 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 17:38:00,877 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 17:38:00,877 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 17:38:00,884 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:38:00" (1/1) ... [2024-10-13 17:38:00,896 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:38:00" (1/1) ... [2024-10-13 17:38:00,925 INFO L138 Inliner]: procedures = 54, calls = 97, calls flagged for inlining = 50, calls inlined = 51, statements flattened = 330 [2024-10-13 17:38:00,926 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 17:38:00,926 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 17:38:00,927 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 17:38:00,927 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 17:38:00,940 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:38:00" (1/1) ... [2024-10-13 17:38:00,941 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:38:00" (1/1) ... [2024-10-13 17:38:00,944 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:38:00" (1/1) ... [2024-10-13 17:38:00,959 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]. [2024-10-13 17:38:00,959 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:38:00" (1/1) ... [2024-10-13 17:38:00,960 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:38:00" (1/1) ... [2024-10-13 17:38:00,965 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:38:00" (1/1) ... [2024-10-13 17:38:00,969 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:38:00" (1/1) ... [2024-10-13 17:38:00,972 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:38:00" (1/1) ... [2024-10-13 17:38:00,974 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:38:00" (1/1) ... [2024-10-13 17:38:00,977 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 17:38:00,978 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 17:38:00,978 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 17:38:00,978 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 17:38:00,979 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:38:00" (1/1) ... [2024-10-13 17:38:00,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 17:38:01,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 17:38:01,013 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) [2024-10-13 17:38:01,015 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 [2024-10-13 17:38:01,057 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 17:38:01,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-13 17:38:01,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 17:38:01,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 17:38:01,125 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 17:38:01,127 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 17:38:01,469 INFO L? ?]: Removed 70 outVars from TransFormulas that were not future-live. [2024-10-13 17:38:01,470 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 17:38:01,487 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 17:38:01,487 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-13 17:38:01,488 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 05:38:01 BoogieIcfgContainer [2024-10-13 17:38:01,488 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 17:38:01,489 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-10-13 17:38:01,489 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-10-13 17:38:01,495 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-10-13 17:38:01,496 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-13 17:38:01,496 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 05:38:00" (1/3) ... [2024-10-13 17:38:01,497 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@67a82387 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 05:38:01, skipping insertion in model container [2024-10-13 17:38:01,497 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-13 17:38:01,497 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:38:00" (2/3) ... [2024-10-13 17:38:01,497 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@67a82387 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 05:38:01, skipping insertion in model container [2024-10-13 17:38:01,498 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-13 17:38:01,498 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 05:38:01" (3/3) ... [2024-10-13 17:38:01,500 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product26.cil.c [2024-10-13 17:38:01,570 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-10-13 17:38:01,570 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-10-13 17:38:01,570 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-10-13 17:38:01,570 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-10-13 17:38:01,570 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-10-13 17:38:01,571 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-10-13 17:38:01,571 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-10-13 17:38:01,571 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-10-13 17:38:01,576 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 106 states, 105 states have (on average 1.3523809523809525) internal successors, (142), 105 states have internal predecessors, (142), 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) [2024-10-13 17:38:01,597 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 67 [2024-10-13 17:38:01,598 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-13 17:38:01,598 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-13 17:38:01,605 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-13 17:38:01,606 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 17:38:01,606 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-10-13 17:38:01,607 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 106 states, 105 states have (on average 1.3523809523809525) internal successors, (142), 105 states have internal predecessors, (142), 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) [2024-10-13 17:38:01,613 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 67 [2024-10-13 17:38:01,614 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-13 17:38:01,614 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-13 17:38:01,614 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-13 17:38:01,615 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 17:38:01,619 INFO L745 eck$LassoCheckResult]: Stem: 19#$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;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 24#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret12#1, main_~retValue_acc~5#1, main_~tmp~1#1;havoc main_~retValue_acc~5#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; 17#select_helpers_returnLabel#1true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 89#select_features_returnLabel#1true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 76#valid_product_returnLabel#1true main_#t~ret12#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret12#1;havoc main_#t~ret12#1; 20#L297true assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; 55#setup_returnLabel#1true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet48#1, test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 16#L868-2true [2024-10-13 17:38:01,620 INFO L747 eck$LassoCheckResult]: Loop: 16#L868-2true assume !false; 34#L869true assume test_~splverifierCounter~0#1 < 4; 69#L870true havoc test_#t~nondet48#1;test_~tmp~8#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1; 31#L878true assume !(0 != test_~tmp~8#1); 68#L878-2true havoc test_#t~nondet49#1;test_~tmp___0~2#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 14#L888true assume !(0 != test_~tmp___0~2#1); 50#L888-2true havoc test_#t~nondet50#1;test_~tmp___2~0#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 75#L898true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 35#startSystem_returnLabel#1true assume { :end_inline_startSystem } true; 97#L906-2true assume { :begin_inline_timeShift } true; 49#L321true assume !(0 != ~pumpRunning~0); 66#L321-2true assume !(0 != ~systemActive~0); 64#L328-1true assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret10#1, __utac_acc__Specification1_spec__1_#t~ret11#1, __utac_acc__Specification1_spec__1_~tmp~0#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~0#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; 99#isMethaneLevelCritical_returnLabel#1true __utac_acc__Specification1_spec__1_#t~ret10#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~0#1 := __utac_acc__Specification1_spec__1_#t~ret10#1;havoc __utac_acc__Specification1_spec__1_#t~ret10#1; 83#L194true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0#1); 7#L194-1true havoc __utac_acc__Specification1_spec__1_#t~ret10#1, __utac_acc__Specification1_spec__1_#t~ret11#1, __utac_acc__Specification1_spec__1_~tmp~0#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification1_spec__1 } true; 45#timeShift_returnLabel#1true assume { :end_inline_timeShift } true; 16#L868-2true [2024-10-13 17:38:01,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:38:01,625 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2024-10-13 17:38:01,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:38:01,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260221298] [2024-10-13 17:38:01,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:38:01,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:38:01,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:38:01,741 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 17:38:01,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:38:01,784 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 17:38:01,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:38:01,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1147231139, now seen corresponding path program 1 times [2024-10-13 17:38:01,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:38:01,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130862952] [2024-10-13 17:38:01,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:38:01,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:38:01,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 17:38:01,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 17:38:01,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 17:38:01,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130862952] [2024-10-13 17:38:01,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130862952] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 17:38:01,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 17:38:01,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 17:38:01,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460361961] [2024-10-13 17:38:01,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 17:38:01,889 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-10-13 17:38:01,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 17:38:01,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 17:38:01,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 17:38:01,928 INFO L87 Difference]: Start difference. First operand has 106 states, 105 states have (on average 1.3523809523809525) internal successors, (142), 105 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2024-10-13 17:38:01,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 17:38:01,963 INFO L93 Difference]: Finished difference Result 100 states and 126 transitions. [2024-10-13 17:38:01,965 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 100 states and 126 transitions. [2024-10-13 17:38:01,973 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 61 [2024-10-13 17:38:01,977 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 100 states to 90 states and 115 transitions. [2024-10-13 17:38:01,978 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 90 [2024-10-13 17:38:01,978 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 90 [2024-10-13 17:38:01,979 INFO L73 IsDeterministic]: Start isDeterministic. Operand 90 states and 115 transitions. [2024-10-13 17:38:01,980 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-13 17:38:01,980 INFO L218 hiAutomatonCegarLoop]: Abstraction has 90 states and 115 transitions. [2024-10-13 17:38:01,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states and 115 transitions. [2024-10-13 17:38:02,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2024-10-13 17:38:02,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 90 states have (on average 1.2777777777777777) internal successors, (115), 89 states have internal predecessors, (115), 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) [2024-10-13 17:38:02,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 115 transitions. [2024-10-13 17:38:02,019 INFO L240 hiAutomatonCegarLoop]: Abstraction has 90 states and 115 transitions. [2024-10-13 17:38:02,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 17:38:02,025 INFO L425 stractBuchiCegarLoop]: Abstraction has 90 states and 115 transitions. [2024-10-13 17:38:02,025 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-10-13 17:38:02,026 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 90 states and 115 transitions. [2024-10-13 17:38:02,027 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 61 [2024-10-13 17:38:02,027 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-13 17:38:02,028 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-13 17:38:02,028 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-13 17:38:02,028 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] [2024-10-13 17:38:02,029 INFO L745 eck$LassoCheckResult]: Stem: 286#$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;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 287#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret12#1, main_~retValue_acc~5#1, main_~tmp~1#1;havoc main_~retValue_acc~5#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; 277#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 278#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 270#valid_product_returnLabel#1 main_#t~ret12#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret12#1;havoc main_#t~ret12#1; 271#L297 assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; 222#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet48#1, test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 223#L868-2 [2024-10-13 17:38:02,029 INFO L747 eck$LassoCheckResult]: Loop: 223#L868-2 assume !false; 273#L869 assume test_~splverifierCounter~0#1 < 4; 256#L870 havoc test_#t~nondet48#1;test_~tmp~8#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1; 257#L878 assume !(0 != test_~tmp~8#1); 254#L878-2 havoc test_#t~nondet49#1;test_~tmp___0~2#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 255#L888 assume !(0 != test_~tmp___0~2#1); 238#L888-2 havoc test_#t~nondet50#1;test_~tmp___2~0#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 266#L898 assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet51#1;test_~tmp___1~0#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 267#L906 assume 0 != test_~tmp___1~0#1; 291#L906-2 assume { :begin_inline_timeShift } true; 297#L321 assume !(0 != ~pumpRunning~0); 251#L321-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret13#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 252#L353 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 228#processEnvironment__wrappee__base_returnLabel#2 assume { :end_inline_processEnvironment__wrappee__base } true; 229#L353-1 havoc processEnvironment_#t~ret13#1, processEnvironment_~tmp~2#1;assume { :end_inline_processEnvironment } true; 239#L328-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret10#1, __utac_acc__Specification1_spec__1_#t~ret11#1, __utac_acc__Specification1_spec__1_~tmp~0#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~0#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; 240#isMethaneLevelCritical_returnLabel#1 __utac_acc__Specification1_spec__1_#t~ret10#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~0#1 := __utac_acc__Specification1_spec__1_#t~ret10#1;havoc __utac_acc__Specification1_spec__1_#t~ret10#1; 283#L194 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0#1); 225#L194-1 havoc __utac_acc__Specification1_spec__1_#t~ret10#1, __utac_acc__Specification1_spec__1_#t~ret11#1, __utac_acc__Specification1_spec__1_~tmp~0#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification1_spec__1 } true; 231#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 223#L868-2 [2024-10-13 17:38:02,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:38:02,030 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2024-10-13 17:38:02,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:38:02,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707039644] [2024-10-13 17:38:02,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:38:02,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:38:02,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:38:02,052 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 17:38:02,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:38:02,071 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 17:38:02,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:38:02,075 INFO L85 PathProgramCache]: Analyzing trace with hash -1840107479, now seen corresponding path program 1 times [2024-10-13 17:38:02,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:38:02,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579685826] [2024-10-13 17:38:02,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:38:02,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:38:02,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:38:02,090 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 17:38:02,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:38:02,105 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 17:38:02,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:38:02,106 INFO L85 PathProgramCache]: Analyzing trace with hash 806861805, now seen corresponding path program 1 times [2024-10-13 17:38:02,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:38:02,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554531868] [2024-10-13 17:38:02,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:38:02,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:38:02,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:38:02,136 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 17:38:02,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:38:02,164 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 17:38:03,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:38:03,200 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 17:38:03,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:38:03,266 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 05:38:03 BoogieIcfgContainer [2024-10-13 17:38:03,266 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-10-13 17:38:03,267 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-13 17:38:03,269 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-13 17:38:03,270 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-13 17:38:03,270 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 05:38:01" (3/4) ... [2024-10-13 17:38:03,271 INFO L136 WitnessPrinter]: Generating witness for non-termination counterexample [2024-10-13 17:38:03,330 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-13 17:38:03,330 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-13 17:38:03,331 INFO L158 Benchmark]: Toolchain (without parser) took 2931.97ms. Allocated memory was 159.4MB in the beginning and 224.4MB in the end (delta: 65.0MB). Free memory was 101.9MB in the beginning and 168.3MB in the end (delta: -66.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 17:38:03,334 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 159.4MB. Free memory was 120.7MB in the beginning and 120.6MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 17:38:03,334 INFO L158 Benchmark]: CACSL2BoogieTranslator took 475.52ms. Allocated memory is still 159.4MB. Free memory was 101.9MB in the beginning and 81.4MB in the end (delta: 20.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-10-13 17:38:03,334 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.42ms. Allocated memory is still 159.4MB. Free memory was 81.4MB in the beginning and 78.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-13 17:38:03,335 INFO L158 Benchmark]: Boogie Preprocessor took 50.46ms. Allocated memory is still 159.4MB. Free memory was 78.9MB in the beginning and 76.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-13 17:38:03,335 INFO L158 Benchmark]: RCFGBuilder took 510.17ms. Allocated memory was 159.4MB in the beginning and 224.4MB in the end (delta: 65.0MB). Free memory was 75.9MB in the beginning and 189.2MB in the end (delta: -113.3MB). Peak memory consumption was 25.8MB. Max. memory is 16.1GB. [2024-10-13 17:38:03,335 INFO L158 Benchmark]: BuchiAutomizer took 1777.42ms. Allocated memory is still 224.4MB. Free memory was 189.2MB in the beginning and 170.4MB in the end (delta: 18.8MB). Peak memory consumption was 15.7MB. Max. memory is 16.1GB. [2024-10-13 17:38:03,335 INFO L158 Benchmark]: Witness Printer took 63.81ms. Allocated memory is still 224.4MB. Free memory was 170.4MB in the beginning and 168.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-13 17:38:03,337 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 159.4MB. Free memory was 120.7MB in the beginning and 120.6MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 475.52ms. Allocated memory is still 159.4MB. Free memory was 101.9MB in the beginning and 81.4MB in the end (delta: 20.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.42ms. Allocated memory is still 159.4MB. Free memory was 81.4MB in the beginning and 78.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.46ms. Allocated memory is still 159.4MB. Free memory was 78.9MB in the beginning and 76.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 510.17ms. Allocated memory was 159.4MB in the beginning and 224.4MB in the end (delta: 65.0MB). Free memory was 75.9MB in the beginning and 189.2MB in the end (delta: -113.3MB). Peak memory consumption was 25.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 1777.42ms. Allocated memory is still 224.4MB. Free memory was 189.2MB in the beginning and 170.4MB in the end (delta: 18.8MB). Peak memory consumption was 15.7MB. Max. memory is 16.1GB. * Witness Printer took 63.81ms. Allocated memory is still 224.4MB. Free memory was 170.4MB in the beginning and 168.3MB in the end (delta: 2.1MB). 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,"featureselect.i","") [49] - GenericResultAtLocation [Line: 87]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [87] - GenericResultAtLocation [Line: 183]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [183] - GenericResultAtLocation [Line: 211]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [211] - GenericResultAtLocation [Line: 310]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [310] - GenericResultAtLocation [Line: 491]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [491] - GenericResultAtLocation [Line: 857]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [857] - GenericResultAtLocation [Line: 924]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [924] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 90 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.6s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 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, 121 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 121 mSDsluCounter, 123 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 123 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 868]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L95] int waterLevel = 1; [L96] int methaneLevelCritical = 0; [L212] int cleanupTimeShifts = 4; [L314] int pumpRunning = 0; [L315] int systemActive = 1; [L661] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L288] int retValue_acc ; [L289] int tmp ; [L293] FCALL select_helpers() [L294] FCALL select_features() [L295] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L295] RET, EXPR valid_product() [L295] tmp = valid_product() [L297] COND TRUE \read(tmp) [L299] FCALL setup() [L300] CALL runTest() [L282] CALL test() [L859] int splverifierCounter ; [L860] int tmp ; [L861] int tmp___0 ; [L862] int tmp___1 ; [L863] int tmp___2 ; [L866] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L868] COND TRUE 1 [L870] COND TRUE splverifierCounter < 4 [L876] tmp = __VERIFIER_nondet_int() [L878] COND FALSE !(\read(tmp)) [L886] tmp___0 = __VERIFIER_nondet_int() [L888] COND FALSE !(\read(tmp___0)) [L896] tmp___2 = __VERIFIER_nondet_int() [L898] COND FALSE !(\read(tmp___2)) [L904] tmp___1 = __VERIFIER_nondet_int() [L906] COND TRUE \read(tmp___1) [L913] CALL timeShift() [L321] COND FALSE !(\read(pumpRunning)) [L328] COND TRUE \read(systemActive) [L330] CALL processEnvironment() [L350] int tmp ; [L353] COND FALSE !(\read(pumpRunning)) [L368] FCALL processEnvironment__wrappee__base() [L330] RET processEnvironment() [L336] CALL __utac_acc__Specification1_spec__1() [L187] int tmp ; [L188] int tmp___0 ; [L192] CALL, EXPR isMethaneLevelCritical() [L134] int retValue_acc ; [L137] retValue_acc = methaneLevelCritical [L138] return (retValue_acc); [L192] RET, EXPR isMethaneLevelCritical() [L192] tmp = isMethaneLevelCritical() [L194] COND FALSE !(\read(tmp)) [L336] RET __utac_acc__Specification1_spec__1() [L913] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 868]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L95] int waterLevel = 1; [L96] int methaneLevelCritical = 0; [L212] int cleanupTimeShifts = 4; [L314] int pumpRunning = 0; [L315] int systemActive = 1; [L661] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L288] int retValue_acc ; [L289] int tmp ; [L293] FCALL select_helpers() [L294] FCALL select_features() [L295] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L295] RET, EXPR valid_product() [L295] tmp = valid_product() [L297] COND TRUE \read(tmp) [L299] FCALL setup() [L300] CALL runTest() [L282] CALL test() [L859] int splverifierCounter ; [L860] int tmp ; [L861] int tmp___0 ; [L862] int tmp___1 ; [L863] int tmp___2 ; [L866] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L868] COND TRUE 1 [L870] COND TRUE splverifierCounter < 4 [L876] tmp = __VERIFIER_nondet_int() [L878] COND FALSE !(\read(tmp)) [L886] tmp___0 = __VERIFIER_nondet_int() [L888] COND FALSE !(\read(tmp___0)) [L896] tmp___2 = __VERIFIER_nondet_int() [L898] COND FALSE !(\read(tmp___2)) [L904] tmp___1 = __VERIFIER_nondet_int() [L906] COND TRUE \read(tmp___1) [L913] CALL timeShift() [L321] COND FALSE !(\read(pumpRunning)) [L328] COND TRUE \read(systemActive) [L330] CALL processEnvironment() [L350] int tmp ; [L353] COND FALSE !(\read(pumpRunning)) [L368] FCALL processEnvironment__wrappee__base() [L330] RET processEnvironment() [L336] CALL __utac_acc__Specification1_spec__1() [L187] int tmp ; [L188] int tmp___0 ; [L192] CALL, EXPR isMethaneLevelCritical() [L134] int retValue_acc ; [L137] retValue_acc = methaneLevelCritical [L138] return (retValue_acc); [L192] RET, EXPR isMethaneLevelCritical() [L192] tmp = isMethaneLevelCritical() [L194] COND FALSE !(\read(tmp)) [L336] RET __utac_acc__Specification1_spec__1() [L913] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-10-13 17:38:03,369 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)