./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_spec5_product22.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version fca748b1 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_spec5_product22.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 1f2870beb38cc74f17a96c393839e7d6d2f1f4f9c95ce97be38a991d6b510bc3 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 22:53:59,042 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 22:53:59,116 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-20 22:53:59,122 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 22:53:59,122 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 22:53:59,151 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 22:53:59,152 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 22:53:59,152 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 22:53:59,152 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 22:53:59,153 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 22:53:59,153 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 22:53:59,153 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 22:53:59,154 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 22:53:59,154 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-20 22:53:59,154 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-20 22:53:59,155 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-20 22:53:59,155 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-20 22:53:59,157 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-20 22:53:59,158 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-20 22:53:59,158 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 22:53:59,158 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-20 22:53:59,159 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 22:53:59,159 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 22:53:59,160 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 22:53:59,160 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 22:53:59,160 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-20 22:53:59,161 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-20 22:53:59,161 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-20 22:53:59,161 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 22:53:59,161 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 22:53:59,162 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 22:53:59,162 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 22:53:59,162 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-20 22:53:59,162 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 22:53:59,163 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 22:53:59,163 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 22:53:59,163 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 22:53:59,163 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 22:53:59,164 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-20 22:53:59,164 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1f2870beb38cc74f17a96c393839e7d6d2f1f4f9c95ce97be38a991d6b510bc3 [2024-11-20 22:53:59,409 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 22:53:59,435 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 22:53:59,439 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 22:53:59,441 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 22:53:59,442 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 22:53:59,443 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product22.cil.c [2024-11-20 22:54:00,917 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 22:54:01,134 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 22:54:01,134 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product22.cil.c [2024-11-20 22:54:01,147 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7c49700e/0b4abb57aa5148dbb227b56b32b1c2e3/FLAGbb5d0d11a [2024-11-20 22:54:01,159 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7c49700e/0b4abb57aa5148dbb227b56b32b1c2e3 [2024-11-20 22:54:01,163 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 22:54:01,164 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 22:54:01,165 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 22:54:01,165 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 22:54:01,171 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 22:54:01,171 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:54:01" (1/1) ... [2024-11-20 22:54:01,172 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bc1b7f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:54:01, skipping insertion in model container [2024-11-20 22:54:01,172 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:54:01" (1/1) ... [2024-11-20 22:54:01,216 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 22:54:01,615 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 22:54:01,626 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 22:54:01,633 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] [2024-11-20 22:54:01,635 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [87] [2024-11-20 22:54:01,635 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [288] [2024-11-20 22:54:01,635 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [339] [2024-11-20 22:54:01,635 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [409] [2024-11-20 22:54:01,635 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [506] [2024-11-20 22:54:01,635 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [872] [2024-11-20 22:54:01,635 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [961] [2024-11-20 22:54:01,679 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 22:54:01,699 INFO L204 MainTranslator]: Completed translation [2024-11-20 22:54:01,699 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:54:01 WrapperNode [2024-11-20 22:54:01,699 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 22:54:01,700 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 22:54:01,700 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 22:54:01,700 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 22:54:01,710 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:54:01" (1/1) ... [2024-11-20 22:54:01,721 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:54:01" (1/1) ... [2024-11-20 22:54:01,763 INFO L138 Inliner]: procedures = 56, calls = 102, calls flagged for inlining = 55, calls inlined = 88, statements flattened = 550 [2024-11-20 22:54:01,764 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 22:54:01,764 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 22:54:01,765 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 22:54:01,765 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 22:54:01,777 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:54:01" (1/1) ... [2024-11-20 22:54:01,777 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:54:01" (1/1) ... [2024-11-20 22:54:01,780 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:54:01" (1/1) ... [2024-11-20 22:54:01,794 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]. [2024-11-20 22:54:01,795 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:54:01" (1/1) ... [2024-11-20 22:54:01,795 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:54:01" (1/1) ... [2024-11-20 22:54:01,803 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:54:01" (1/1) ... [2024-11-20 22:54:01,808 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:54:01" (1/1) ... [2024-11-20 22:54:01,810 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:54:01" (1/1) ... [2024-11-20 22:54:01,812 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:54:01" (1/1) ... [2024-11-20 22:54:01,819 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 22:54:01,820 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 22:54:01,820 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 22:54:01,820 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 22:54:01,825 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:54:01" (1/1) ... [2024-11-20 22:54:01,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:54:01,846 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:54:01,859 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) [2024-11-20 22:54:01,861 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 [2024-11-20 22:54:01,901 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 22:54:01,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 22:54:01,902 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 22:54:01,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 22:54:01,961 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 22:54:01,963 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 22:54:02,407 INFO L? ?]: Removed 121 outVars from TransFormulas that were not future-live. [2024-11-20 22:54:02,407 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 22:54:02,424 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 22:54:02,424 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-20 22:54:02,425 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:54:02 BoogieIcfgContainer [2024-11-20 22:54:02,425 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 22:54:02,426 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-20 22:54:02,426 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-20 22:54:02,431 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-20 22:54:02,432 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-20 22:54:02,432 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 10:54:01" (1/3) ... [2024-11-20 22:54:02,433 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5957aed6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 10:54:02, skipping insertion in model container [2024-11-20 22:54:02,433 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-20 22:54:02,433 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:54:01" (2/3) ... [2024-11-20 22:54:02,434 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5957aed6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 10:54:02, skipping insertion in model container [2024-11-20 22:54:02,434 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-20 22:54:02,434 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:54:02" (3/3) ... [2024-11-20 22:54:02,435 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product22.cil.c [2024-11-20 22:54:02,485 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-20 22:54:02,485 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-20 22:54:02,486 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-20 22:54:02,486 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-20 22:54:02,486 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-20 22:54:02,486 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-20 22:54:02,486 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-20 22:54:02,487 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-20 22:54:02,492 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 164 states, 163 states have (on average 1.3374233128834356) internal successors, (218), 163 states have internal predecessors, (218), 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) [2024-11-20 22:54:02,518 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 105 [2024-11-20 22:54:02,518 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-20 22:54:02,518 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-20 22:54:02,525 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 22:54:02,525 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 22:54:02,525 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-20 22:54:02,526 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 164 states, 163 states have (on average 1.3374233128834356) internal successors, (218), 163 states have internal predecessors, (218), 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) [2024-11-20 22:54:02,533 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 105 [2024-11-20 22:54:02,533 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-20 22:54:02,533 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-20 22:54:02,534 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 22:54:02,534 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 22:54:02,538 INFO L745 eck$LassoCheckResult]: Stem: 32#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 42#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret24#1, main_~retValue_acc~5#1, main_~tmp~5#1;havoc main_~retValue_acc~5#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 29#select_helpers_returnLabel#1true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 135#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; 110#valid_product_returnLabel#1true main_#t~ret24#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret24#1;havoc main_#t~ret24#1; 22#L493true assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 85#setup_returnLabel#1true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 149#__utac_acc__Specification5_spec__1_returnLabel#1true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet20#1, test_#t~nondet21#1, test_#t~nondet22#1, test_#t~nondet23#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 132#L353-2true [2024-11-20 22:54:02,539 INFO L747 eck$LassoCheckResult]: Loop: 132#L353-2true assume !false; 61#L354true assume test_~splverifierCounter~0#1 < 4; 37#L355true havoc test_#t~nondet20#1;test_~tmp~4#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; 165#L363true assume !(0 != test_~tmp~4#1); 101#L363-2true havoc test_#t~nondet21#1;test_~tmp___0~2#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; 148#L373true assume !(0 != test_~tmp___0~2#1); 115#L373-2true havoc test_#t~nondet22#1;test_~tmp___2~0#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 54#L383true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 57#startSystem_returnLabel#1true assume { :end_inline_startSystem } true; 6#L391-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret17#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~3#1;havoc isPumpRunning_~retValue_acc~3#1;isPumpRunning_~retValue_acc~3#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~3#1; 145#isPumpRunning_returnLabel#1true __utac_acc__Specification5_spec__2_#t~ret17#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~3#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret17#1;havoc __utac_acc__Specification5_spec__2_#t~ret17#1; 100#__utac_acc__Specification5_spec__2_returnLabel#1true havoc __utac_acc__Specification5_spec__2_#t~ret17#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true; 84#L110true assume !(0 != ~pumpRunning~0); 44#L110-2true assume !(0 != ~systemActive~0); 122#L117-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret18#1, __utac_acc__Specification5_spec__3_#t~ret19#1, __utac_acc__Specification5_spec__3_~tmp~3#1, __utac_acc__Specification5_spec__3_~tmp___0~1#1;havoc __utac_acc__Specification5_spec__3_~tmp~3#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~1#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; 69#getWaterLevel_returnLabel#1true __utac_acc__Specification5_spec__3_#t~ret18#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~3#1 := __utac_acc__Specification5_spec__3_#t~ret18#1;havoc __utac_acc__Specification5_spec__3_#t~ret18#1; 155#L318true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~3#1); 75#L318-1true havoc __utac_acc__Specification5_spec__3_#t~ret18#1, __utac_acc__Specification5_spec__3_#t~ret19#1, __utac_acc__Specification5_spec__3_~tmp~3#1, __utac_acc__Specification5_spec__3_~tmp___0~1#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true; 70#timeShift_returnLabel#1true assume { :end_inline_timeShift } true; 132#L353-2true [2024-11-20 22:54:02,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:54:02,545 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2024-11-20 22:54:02,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:54:02,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220120360] [2024-11-20 22:54:02,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:54:02,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:54:02,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:54:02,658 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 22:54:02,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:54:02,699 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 22:54:02,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:54:02,703 INFO L85 PathProgramCache]: Analyzing trace with hash 710199629, now seen corresponding path program 1 times [2024-11-20 22:54:02,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:54:02,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001172461] [2024-11-20 22:54:02,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:54:02,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:54:02,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:54:02,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:54:02,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:54:02,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001172461] [2024-11-20 22:54:02,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001172461] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 22:54:02,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 22:54:02,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 22:54:02,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058797468] [2024-11-20 22:54:02,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 22:54:02,813 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-20 22:54:02,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:54:02,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 22:54:02,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 22:54:02,852 INFO L87 Difference]: Start difference. First operand has 164 states, 163 states have (on average 1.3374233128834356) internal successors, (218), 163 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:54:02,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 22:54:02,905 INFO L93 Difference]: Finished difference Result 158 states and 202 transitions. [2024-11-20 22:54:02,906 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 158 states and 202 transitions. [2024-11-20 22:54:02,913 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 99 [2024-11-20 22:54:02,920 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 158 states to 148 states and 191 transitions. [2024-11-20 22:54:02,925 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 148 [2024-11-20 22:54:02,926 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 148 [2024-11-20 22:54:02,927 INFO L73 IsDeterministic]: Start isDeterministic. Operand 148 states and 191 transitions. [2024-11-20 22:54:02,928 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-20 22:54:02,928 INFO L218 hiAutomatonCegarLoop]: Abstraction has 148 states and 191 transitions. [2024-11-20 22:54:02,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states and 191 transitions. [2024-11-20 22:54:02,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2024-11-20 22:54:02,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 148 states have (on average 1.2905405405405406) internal successors, (191), 147 states have internal predecessors, (191), 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) [2024-11-20 22:54:02,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 191 transitions. [2024-11-20 22:54:02,963 INFO L240 hiAutomatonCegarLoop]: Abstraction has 148 states and 191 transitions. [2024-11-20 22:54:02,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 22:54:02,968 INFO L425 stractBuchiCegarLoop]: Abstraction has 148 states and 191 transitions. [2024-11-20 22:54:02,968 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-20 22:54:02,968 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 148 states and 191 transitions. [2024-11-20 22:54:02,970 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 99 [2024-11-20 22:54:02,970 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-20 22:54:02,971 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-20 22:54:02,971 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 22:54:02,971 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] [2024-11-20 22:54:02,972 INFO L745 eck$LassoCheckResult]: Stem: 383#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 384#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret24#1, main_~retValue_acc~5#1, main_~tmp~5#1;havoc main_~retValue_acc~5#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 379#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 380#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; 459#valid_product_returnLabel#1 main_#t~ret24#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret24#1;havoc main_#t~ret24#1; 366#L493 assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 367#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 436#__utac_acc__Specification5_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet20#1, test_#t~nondet21#1, test_#t~nondet22#1, test_#t~nondet23#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 426#L353-2 [2024-11-20 22:54:02,972 INFO L747 eck$LassoCheckResult]: Loop: 426#L353-2 assume !false; 417#L354 assume test_~splverifierCounter~0#1 < 4; 389#L355 havoc test_#t~nondet20#1;test_~tmp~4#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; 390#L363 assume !(0 != test_~tmp~4#1); 451#L363-2 havoc test_#t~nondet21#1;test_~tmp___0~2#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; 452#L373 assume !(0 != test_~tmp___0~2#1); 463#L373-2 havoc test_#t~nondet22#1;test_~tmp___2~0#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 408#L383 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 409#startSystem_returnLabel#1 assume { :end_inline_startSystem } true; 333#L391-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret17#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~3#1;havoc isPumpRunning_~retValue_acc~3#1;isPumpRunning_~retValue_acc~3#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~3#1; 334#isPumpRunning_returnLabel#1 __utac_acc__Specification5_spec__2_#t~ret17#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~3#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret17#1;havoc __utac_acc__Specification5_spec__2_#t~ret17#1; 450#__utac_acc__Specification5_spec__2_returnLabel#1 havoc __utac_acc__Specification5_spec__2_#t~ret17#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true; 434#L110 assume !(0 != ~pumpRunning~0); 399#L110-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret6#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 343#L168 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret5#1, processEnvironment__wrappee__lowWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~0#1; 344#L142-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 331#processEnvironment__wrappee__base_returnLabel#4 assume { :end_inline_processEnvironment__wrappee__base } true; 332#L142-3 havoc processEnvironment__wrappee__lowWaterSensor_#t~ret5#1, processEnvironment__wrappee__lowWaterSensor_~tmp~0#1;assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 445#L168-1 havoc processEnvironment_#t~ret6#1, processEnvironment_~tmp~1#1;assume { :end_inline_processEnvironment } true; 465#L117-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret18#1, __utac_acc__Specification5_spec__3_#t~ret19#1, __utac_acc__Specification5_spec__3_~tmp~3#1, __utac_acc__Specification5_spec__3_~tmp___0~1#1;havoc __utac_acc__Specification5_spec__3_~tmp~3#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~1#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; 423#getWaterLevel_returnLabel#1 __utac_acc__Specification5_spec__3_#t~ret18#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~3#1 := __utac_acc__Specification5_spec__3_#t~ret18#1;havoc __utac_acc__Specification5_spec__3_#t~ret18#1; 424#L318 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~3#1); 340#L318-1 havoc __utac_acc__Specification5_spec__3_#t~ret18#1, __utac_acc__Specification5_spec__3_#t~ret19#1, __utac_acc__Specification5_spec__3_~tmp~3#1, __utac_acc__Specification5_spec__3_~tmp___0~1#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true; 425#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 426#L353-2 [2024-11-20 22:54:02,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:54:02,973 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2024-11-20 22:54:02,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:54:02,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942390548] [2024-11-20 22:54:02,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:54:02,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:54:02,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:54:02,992 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 22:54:03,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:54:03,006 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 22:54:03,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:54:03,006 INFO L85 PathProgramCache]: Analyzing trace with hash -1776284499, now seen corresponding path program 1 times [2024-11-20 22:54:03,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:54:03,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206380920] [2024-11-20 22:54:03,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:54:03,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:54:03,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:54:03,012 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 22:54:03,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:54:03,019 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 22:54:03,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:54:03,019 INFO L85 PathProgramCache]: Analyzing trace with hash -2012429162, now seen corresponding path program 1 times [2024-11-20 22:54:03,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:54:03,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807391145] [2024-11-20 22:54:03,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:54:03,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:54:03,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:54:03,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:54:03,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:54:03,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807391145] [2024-11-20 22:54:03,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807391145] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 22:54:03,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 22:54:03,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 22:54:03,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893744633] [2024-11-20 22:54:03,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 22:54:03,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:54:03,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 22:54:03,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 22:54:03,364 INFO L87 Difference]: Start difference. First operand 148 states and 191 transitions. cyclomatic complexity: 45 Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 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) [2024-11-20 22:54:03,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 22:54:03,513 INFO L93 Difference]: Finished difference Result 287 states and 369 transitions. [2024-11-20 22:54:03,513 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 287 states and 369 transitions. [2024-11-20 22:54:03,516 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 197 [2024-11-20 22:54:03,518 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 287 states to 287 states and 369 transitions. [2024-11-20 22:54:03,518 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 287 [2024-11-20 22:54:03,519 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 287 [2024-11-20 22:54:03,519 INFO L73 IsDeterministic]: Start isDeterministic. Operand 287 states and 369 transitions. [2024-11-20 22:54:03,521 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-20 22:54:03,521 INFO L218 hiAutomatonCegarLoop]: Abstraction has 287 states and 369 transitions. [2024-11-20 22:54:03,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states and 369 transitions. [2024-11-20 22:54:03,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 287. [2024-11-20 22:54:03,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 287 states have (on average 1.2857142857142858) internal successors, (369), 286 states have internal predecessors, (369), 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) [2024-11-20 22:54:03,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 369 transitions. [2024-11-20 22:54:03,537 INFO L240 hiAutomatonCegarLoop]: Abstraction has 287 states and 369 transitions. [2024-11-20 22:54:03,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 22:54:03,538 INFO L425 stractBuchiCegarLoop]: Abstraction has 287 states and 369 transitions. [2024-11-20 22:54:03,539 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-20 22:54:03,539 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 287 states and 369 transitions. [2024-11-20 22:54:03,541 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 197 [2024-11-20 22:54:03,541 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-20 22:54:03,541 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-20 22:54:03,542 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 22:54:03,542 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] [2024-11-20 22:54:03,542 INFO L745 eck$LassoCheckResult]: Stem: 833#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 834#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret24#1, main_~retValue_acc~5#1, main_~tmp~5#1;havoc main_~retValue_acc~5#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 828#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 829#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; 913#valid_product_returnLabel#1 main_#t~ret24#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret24#1;havoc main_#t~ret24#1; 815#L493 assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 816#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 889#__utac_acc__Specification5_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet20#1, test_#t~nondet21#1, test_#t~nondet22#1, test_#t~nondet23#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 936#L353-2 [2024-11-20 22:54:03,542 INFO L747 eck$LassoCheckResult]: Loop: 936#L353-2 assume !false; 959#L354 assume test_~splverifierCounter~0#1 < 4; 955#L355 havoc test_#t~nondet20#1;test_~tmp~4#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; 940#L363 assume !(0 != test_~tmp~4#1); 904#L363-2 havoc test_#t~nondet21#1;test_~tmp___0~2#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; 905#L373 assume !(0 != test_~tmp___0~2#1); 917#L373-2 havoc test_#t~nondet22#1;test_~tmp___2~0#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 858#L383 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 859#startSystem_returnLabel#1 assume { :end_inline_startSystem } true; 782#L391-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret17#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~3#1;havoc isPumpRunning_~retValue_acc~3#1;isPumpRunning_~retValue_acc~3#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~3#1; 783#isPumpRunning_returnLabel#1 __utac_acc__Specification5_spec__2_#t~ret17#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~3#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret17#1;havoc __utac_acc__Specification5_spec__2_#t~ret17#1; 903#__utac_acc__Specification5_spec__2_returnLabel#1 havoc __utac_acc__Specification5_spec__2_#t~ret17#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true; 886#L110 assume !(0 != ~pumpRunning~0); 848#L110-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret6#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 792#L168 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret5#1, processEnvironment__wrappee__lowWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~0#1; 793#L142-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 780#processEnvironment__wrappee__base_returnLabel#4 assume { :end_inline_processEnvironment__wrappee__base } true; 781#L142-3 havoc processEnvironment__wrappee__lowWaterSensor_#t~ret5#1, processEnvironment__wrappee__lowWaterSensor_~tmp~0#1;assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 898#L168-1 havoc processEnvironment_#t~ret6#1, processEnvironment_~tmp~1#1;assume { :end_inline_processEnvironment } true; 919#L117-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret18#1, __utac_acc__Specification5_spec__3_#t~ret19#1, __utac_acc__Specification5_spec__3_~tmp~3#1, __utac_acc__Specification5_spec__3_~tmp___0~1#1;havoc __utac_acc__Specification5_spec__3_~tmp~3#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~1#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; 873#getWaterLevel_returnLabel#1 __utac_acc__Specification5_spec__3_#t~ret18#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~3#1 := __utac_acc__Specification5_spec__3_#t~ret18#1;havoc __utac_acc__Specification5_spec__3_#t~ret18#1; 874#L318 assume 2 != __utac_acc__Specification5_spec__3_~tmp~3#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~3#1;havoc isPumpRunning_~retValue_acc~3#1;isPumpRunning_~retValue_acc~3#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~3#1; 972#isPumpRunning_returnLabel#2 __utac_acc__Specification5_spec__3_#t~ret19#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~3#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~1#1 := __utac_acc__Specification5_spec__3_#t~ret19#1;havoc __utac_acc__Specification5_spec__3_#t~ret19#1; 970#L322 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~1#1); 967#L318-1 havoc __utac_acc__Specification5_spec__3_#t~ret18#1, __utac_acc__Specification5_spec__3_#t~ret19#1, __utac_acc__Specification5_spec__3_~tmp~3#1, __utac_acc__Specification5_spec__3_~tmp___0~1#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true; 965#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 936#L353-2 [2024-11-20 22:54:03,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:54:03,543 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2024-11-20 22:54:03,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:54:03,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556003464] [2024-11-20 22:54:03,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:54:03,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:54:03,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:54:03,557 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 22:54:03,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:54:03,579 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 22:54:03,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:54:03,580 INFO L85 PathProgramCache]: Analyzing trace with hash -1928390552, now seen corresponding path program 1 times [2024-11-20 22:54:03,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:54:03,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610425114] [2024-11-20 22:54:03,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:54:03,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:54:03,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:54:03,594 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 22:54:03,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:54:03,606 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 22:54:03,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:54:03,607 INFO L85 PathProgramCache]: Analyzing trace with hash -1230145007, now seen corresponding path program 1 times [2024-11-20 22:54:03,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:54:03,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373819947] [2024-11-20 22:54:03,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:54:03,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:54:03,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:54:03,623 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 22:54:03,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:54:03,639 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 22:54:04,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:54:04,543 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 22:54:04,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:54:04,606 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 10:54:04 BoogieIcfgContainer [2024-11-20 22:54:04,606 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-20 22:54:04,608 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-20 22:54:04,608 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-20 22:54:04,609 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-20 22:54:04,609 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:54:02" (3/4) ... [2024-11-20 22:54:04,611 INFO L139 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-20 22:54:04,674 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-20 22:54:04,676 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-20 22:54:04,677 INFO L158 Benchmark]: Toolchain (without parser) took 3512.52ms. Allocated memory is still 163.6MB. Free memory was 96.3MB in the beginning and 65.2MB in the end (delta: 31.1MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-20 22:54:04,677 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 104.9MB. Free memory is still 67.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 22:54:04,677 INFO L158 Benchmark]: CACSL2BoogieTranslator took 534.22ms. Allocated memory is still 163.6MB. Free memory was 96.1MB in the beginning and 129.8MB in the end (delta: -33.7MB). Peak memory consumption was 17.6MB. Max. memory is 16.1GB. [2024-11-20 22:54:04,678 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.88ms. Allocated memory is still 163.6MB. Free memory was 129.8MB in the beginning and 127.0MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-20 22:54:04,678 INFO L158 Benchmark]: Boogie Preprocessor took 54.52ms. Allocated memory is still 163.6MB. Free memory was 127.0MB in the beginning and 123.5MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-20 22:54:04,678 INFO L158 Benchmark]: RCFGBuilder took 605.50ms. Allocated memory is still 163.6MB. Free memory was 123.5MB in the beginning and 96.2MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-11-20 22:54:04,678 INFO L158 Benchmark]: BuchiAutomizer took 2179.94ms. Allocated memory is still 163.6MB. Free memory was 96.2MB in the beginning and 68.3MB in the end (delta: 27.9MB). Peak memory consumption was 28.6MB. Max. memory is 16.1GB. [2024-11-20 22:54:04,679 INFO L158 Benchmark]: Witness Printer took 67.88ms. Allocated memory is still 163.6MB. Free memory was 68.3MB in the beginning and 65.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-20 22:54:04,681 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 104.9MB. Free memory is still 67.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 534.22ms. Allocated memory is still 163.6MB. Free memory was 96.1MB in the beginning and 129.8MB in the end (delta: -33.7MB). Peak memory consumption was 17.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.88ms. Allocated memory is still 163.6MB. Free memory was 129.8MB in the beginning and 127.0MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.52ms. Allocated memory is still 163.6MB. Free memory was 127.0MB in the beginning and 123.5MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 605.50ms. Allocated memory is still 163.6MB. Free memory was 123.5MB in the beginning and 96.2MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 2179.94ms. Allocated memory is still 163.6MB. Free memory was 96.2MB in the beginning and 68.3MB in the end (delta: 27.9MB). Peak memory consumption was 28.6MB. Max. memory is 16.1GB. * Witness Printer took 67.88ms. Allocated memory is still 163.6MB. Free memory was 68.3MB in the beginning and 65.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] - GenericResultAtLocation [Line: 87]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [87] - GenericResultAtLocation [Line: 288]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [288] - GenericResultAtLocation [Line: 339]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [339] - GenericResultAtLocation [Line: 409]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [409] - GenericResultAtLocation [Line: 506]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [506] - GenericResultAtLocation [Line: 872]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [872] - GenericResultAtLocation [Line: 961]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [961] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 287 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.0s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 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, 350 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 350 mSDsluCounter, 871 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 501 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 90 IncrementalHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 370 mSDtfsCounter, 90 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 353]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L98] int pumpRunning = 0; [L99] int systemActive = 1; [L291] int switchedOnBeforeTS ; [L410] int cleanupTimeShifts = 4; [L676] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L873] int waterLevel = 1; [L874] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L484] int retValue_acc ; [L485] int tmp ; [L489] FCALL select_helpers() [L490] FCALL select_features() [L491] 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, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L491] RET, EXPR valid_product() [L491] tmp = valid_product() [L493] COND TRUE \read(tmp) [L495] FCALL setup() [L496] CALL runTest() [L477] CALL __utac_acc__Specification5_spec__1() [L296] switchedOnBeforeTS = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L477] RET __utac_acc__Specification5_spec__1() [L478] CALL test() [L344] int splverifierCounter ; [L345] int tmp ; [L346] int tmp___0 ; [L347] int tmp___1 ; [L348] int tmp___2 ; [L351] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] Loop: [L353] COND TRUE 1 [L355] COND TRUE splverifierCounter < 4 [L361] tmp = __VERIFIER_nondet_int() [L363] COND FALSE !(\read(tmp)) [L371] tmp___0 = __VERIFIER_nondet_int() [L373] COND FALSE !(\read(tmp___0)) [L381] tmp___2 = __VERIFIER_nondet_int() [L383] COND TRUE \read(tmp___2) [L385] CALL startSystem() [L284] systemActive = 1 [L385] RET startSystem() [L398] CALL timeShift() [L108] CALL __utac_acc__Specification5_spec__2() [L305] CALL, EXPR isPumpRunning() [L217] int retValue_acc ; [L220] retValue_acc = pumpRunning [L221] return (retValue_acc); [L305] RET, EXPR isPumpRunning() [L305] switchedOnBeforeTS = isPumpRunning() [L108] RET __utac_acc__Specification5_spec__2() [L110] COND FALSE !(\read(pumpRunning)) [L117] COND TRUE \read(systemActive) [L119] CALL processEnvironment() [L165] int tmp ; [L168] COND FALSE !(\read(pumpRunning)) [L183] CALL processEnvironment__wrappee__lowWaterSensor() [L139] int tmp ; [L142] COND FALSE !(\read(pumpRunning)) [L157] FCALL processEnvironment__wrappee__base() [L183] RET processEnvironment__wrappee__lowWaterSensor() [L119] RET processEnvironment() [L125] CALL __utac_acc__Specification5_spec__3() [L311] int tmp ; [L312] int tmp___0 ; [L316] CALL, EXPR getWaterLevel() [L944] int retValue_acc ; [L947] retValue_acc = waterLevel [L948] return (retValue_acc); [L316] RET, EXPR getWaterLevel() [L316] tmp = getWaterLevel() [L318] COND TRUE tmp != 2 [L320] CALL, EXPR isPumpRunning() [L217] int retValue_acc ; [L220] retValue_acc = pumpRunning [L221] return (retValue_acc); [L320] RET, EXPR isPumpRunning() [L320] tmp___0 = isPumpRunning() [L322] COND FALSE !(\read(tmp___0)) [L125] RET __utac_acc__Specification5_spec__3() [L398] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 353]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L98] int pumpRunning = 0; [L99] int systemActive = 1; [L291] int switchedOnBeforeTS ; [L410] int cleanupTimeShifts = 4; [L676] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L873] int waterLevel = 1; [L874] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L484] int retValue_acc ; [L485] int tmp ; [L489] FCALL select_helpers() [L490] FCALL select_features() [L491] 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, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L491] RET, EXPR valid_product() [L491] tmp = valid_product() [L493] COND TRUE \read(tmp) [L495] FCALL setup() [L496] CALL runTest() [L477] CALL __utac_acc__Specification5_spec__1() [L296] switchedOnBeforeTS = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L477] RET __utac_acc__Specification5_spec__1() [L478] CALL test() [L344] int splverifierCounter ; [L345] int tmp ; [L346] int tmp___0 ; [L347] int tmp___1 ; [L348] int tmp___2 ; [L351] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] Loop: [L353] COND TRUE 1 [L355] COND TRUE splverifierCounter < 4 [L361] tmp = __VERIFIER_nondet_int() [L363] COND FALSE !(\read(tmp)) [L371] tmp___0 = __VERIFIER_nondet_int() [L373] COND FALSE !(\read(tmp___0)) [L381] tmp___2 = __VERIFIER_nondet_int() [L383] COND TRUE \read(tmp___2) [L385] CALL startSystem() [L284] systemActive = 1 [L385] RET startSystem() [L398] CALL timeShift() [L108] CALL __utac_acc__Specification5_spec__2() [L305] CALL, EXPR isPumpRunning() [L217] int retValue_acc ; [L220] retValue_acc = pumpRunning [L221] return (retValue_acc); [L305] RET, EXPR isPumpRunning() [L305] switchedOnBeforeTS = isPumpRunning() [L108] RET __utac_acc__Specification5_spec__2() [L110] COND FALSE !(\read(pumpRunning)) [L117] COND TRUE \read(systemActive) [L119] CALL processEnvironment() [L165] int tmp ; [L168] COND FALSE !(\read(pumpRunning)) [L183] CALL processEnvironment__wrappee__lowWaterSensor() [L139] int tmp ; [L142] COND FALSE !(\read(pumpRunning)) [L157] FCALL processEnvironment__wrappee__base() [L183] RET processEnvironment__wrappee__lowWaterSensor() [L119] RET processEnvironment() [L125] CALL __utac_acc__Specification5_spec__3() [L311] int tmp ; [L312] int tmp___0 ; [L316] CALL, EXPR getWaterLevel() [L944] int retValue_acc ; [L947] retValue_acc = waterLevel [L948] return (retValue_acc); [L316] RET, EXPR getWaterLevel() [L316] tmp = getWaterLevel() [L318] COND TRUE tmp != 2 [L320] CALL, EXPR isPumpRunning() [L217] int retValue_acc ; [L220] retValue_acc = pumpRunning [L221] return (retValue_acc); [L320] RET, EXPR isPumpRunning() [L320] tmp___0 = isPumpRunning() [L322] COND FALSE !(\read(tmp___0)) [L125] RET __utac_acc__Specification5_spec__3() [L398] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-20 22:54:04,696 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)