./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product33.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec1_product33.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 ae076af2cea67b9cfc404edc1600766999266c2b24082e43516a66dae23512b8 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 16:01:23,677 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 16:01:23,733 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-09 16:01:23,738 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 16:01:23,738 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 16:01:23,755 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 16:01:23,755 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 16:01:23,756 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 16:01:23,756 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 16:01:23,757 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 16:01:23,757 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 16:01:23,757 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 16:01:23,757 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 16:01:23,758 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-09 16:01:23,758 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-09 16:01:23,758 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-09 16:01:23,759 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-09 16:01:23,759 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-09 16:01:23,759 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-09 16:01:23,760 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 16:01:23,760 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-09 16:01:23,760 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 16:01:23,761 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 16:01:23,761 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 16:01:23,761 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 16:01:23,761 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-09 16:01:23,762 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-09 16:01:23,762 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-09 16:01:23,762 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 16:01:23,762 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 16:01:23,763 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 16:01:23,763 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 16:01:23,763 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-09 16:01:23,763 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 16:01:23,764 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 16:01:23,764 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 16:01:23,764 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 16:01:23,764 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 16:01:23,765 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-09 16:01:23,765 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ae076af2cea67b9cfc404edc1600766999266c2b24082e43516a66dae23512b8 [2024-11-09 16:01:24,034 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 16:01:24,066 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 16:01:24,069 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 16:01:24,071 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 16:01:24,071 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 16:01:24,072 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product33.cil.c [2024-11-09 16:01:25,527 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 16:01:25,708 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 16:01:25,709 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product33.cil.c [2024-11-09 16:01:25,717 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75d170ea5/b06bf2509ebc4f4c956bc6eee52e7663/FLAGab22910fd [2024-11-09 16:01:25,727 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75d170ea5/b06bf2509ebc4f4c956bc6eee52e7663 [2024-11-09 16:01:25,729 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 16:01:25,730 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 16:01:25,731 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 16:01:25,731 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 16:01:25,736 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 16:01:25,736 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:01:25" (1/1) ... [2024-11-09 16:01:25,738 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30fb657 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:01:25, skipping insertion in model container [2024-11-09 16:01:25,738 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:01:25" (1/1) ... [2024-11-09 16:01:25,770 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 16:01:25,977 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 16:01:25,989 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 16:01:25,996 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [49] [2024-11-09 16:01:25,997 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [415] [2024-11-09 16:01:25,997 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [424] [2024-11-09 16:01:25,998 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [586] [2024-11-09 16:01:25,998 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [654] [2024-11-09 16:01:25,998 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [692] [2024-11-09 16:01:25,998 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [788] [2024-11-09 16:01:25,998 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [814] [2024-11-09 16:01:26,035 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 16:01:26,051 INFO L204 MainTranslator]: Completed translation [2024-11-09 16:01:26,051 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:01:26 WrapperNode [2024-11-09 16:01:26,052 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 16:01:26,052 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 16:01:26,052 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 16:01:26,052 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 16:01:26,057 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:01:26" (1/1) ... [2024-11-09 16:01:26,066 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:01:26" (1/1) ... [2024-11-09 16:01:26,092 INFO L138 Inliner]: procedures = 52, calls = 94, calls flagged for inlining = 47, calls inlined = 50, statements flattened = 339 [2024-11-09 16:01:26,094 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 16:01:26,094 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 16:01:26,095 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 16:01:26,095 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 16:01:26,103 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:01:26" (1/1) ... [2024-11-09 16:01:26,103 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:01:26" (1/1) ... [2024-11-09 16:01:26,106 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:01:26" (1/1) ... [2024-11-09 16:01:26,124 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]. [2024-11-09 16:01:26,130 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:01:26" (1/1) ... [2024-11-09 16:01:26,131 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:01:26" (1/1) ... [2024-11-09 16:01:26,134 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:01:26" (1/1) ... [2024-11-09 16:01:26,140 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:01:26" (1/1) ... [2024-11-09 16:01:26,144 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:01:26" (1/1) ... [2024-11-09 16:01:26,145 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:01:26" (1/1) ... [2024-11-09 16:01:26,147 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 16:01:26,148 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 16:01:26,148 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 16:01:26,148 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 16:01:26,149 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:01:26" (1/1) ... [2024-11-09 16:01:26,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:01:26,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:01:26,176 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) [2024-11-09 16:01:26,182 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 [2024-11-09 16:01:26,217 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 16:01:26,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 16:01:26,217 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 16:01:26,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 16:01:26,276 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 16:01:26,304 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 16:01:26,531 INFO L? ?]: Removed 73 outVars from TransFormulas that were not future-live. [2024-11-09 16:01:26,532 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 16:01:26,543 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 16:01:26,544 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-09 16:01:26,544 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:01:26 BoogieIcfgContainer [2024-11-09 16:01:26,544 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 16:01:26,545 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-09 16:01:26,545 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-09 16:01:26,548 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-09 16:01:26,548 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-09 16:01:26,548 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 09.11 04:01:25" (1/3) ... [2024-11-09 16:01:26,549 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@75b60d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.11 04:01:26, skipping insertion in model container [2024-11-09 16:01:26,549 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-09 16:01:26,549 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:01:26" (2/3) ... [2024-11-09 16:01:26,550 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@75b60d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.11 04:01:26, skipping insertion in model container [2024-11-09 16:01:26,550 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-09 16:01:26,550 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:01:26" (3/3) ... [2024-11-09 16:01:26,551 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product33.cil.c [2024-11-09 16:01:26,590 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-09 16:01:26,590 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-09 16:01:26,590 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-09 16:01:26,591 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-09 16:01:26,591 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-09 16:01:26,591 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-09 16:01:26,591 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-09 16:01:26,591 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-09 16:01:26,594 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 108 states, 107 states have (on average 1.3738317757009346) internal successors, (147), 107 states have internal predecessors, (147), 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) [2024-11-09 16:01:26,613 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 68 [2024-11-09 16:01:26,614 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-09 16:01:26,614 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-09 16:01:26,619 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-09 16:01:26,619 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 16:01:26,619 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-09 16:01:26,620 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 108 states, 107 states have (on average 1.3738317757009346) internal successors, (147), 107 states have internal predecessors, (147), 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) [2024-11-09 16:01:26,624 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 68 [2024-11-09 16:01:26,624 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-09 16:01:26,624 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-09 16:01:26,625 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-09 16:01:26,625 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 16:01:26,629 INFO L745 eck$LassoCheckResult]: Stem: 30#$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);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 37#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret43#1, main_~retValue_acc~8#1, main_~tmp~6#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 24#select_helpers_returnLabel#1true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 95#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~7#1;havoc valid_product_~retValue_acc~7#1;valid_product_~retValue_acc~7#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~7#1; 82#valid_product_returnLabel#1true main_#t~ret43#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~7#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret43#1;havoc main_#t~ret43#1; 20#L775true assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 66#setup_returnLabel#1true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_#t~nondet41#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 97#L600-2true [2024-11-09 16:01:26,629 INFO L747 eck$LassoCheckResult]: Loop: 97#L600-2true assume !false; 54#L601true assume test_~splverifierCounter~0#1 < 4; 11#L602true havoc test_#t~nondet38#1;test_~tmp~5#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 48#L610true assume !(0 != test_~tmp~5#1); 49#L610-2true havoc test_#t~nondet39#1;test_~tmp___0~1#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 50#L620true assume !(0 != test_~tmp___0~1#1); 32#L620-2true havoc test_#t~nondet40#1;test_~tmp___2~0#1 := test_#t~nondet40#1;havoc test_#t~nondet40#1; 74#L630true assume 0 != test_~tmp___2~0#1; 92#L636-2true assume { :begin_inline_timeShift } true; 28#L442true assume !(0 != ~pumpRunning~0); 89#L442-2true assume !(0 != ~systemActive~0); 86#L449-1true assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret44#1, __utac_acc__Specification1_spec__1_#t~ret45#1, __utac_acc__Specification1_spec__1_~tmp~7#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification1_spec__1_~tmp~7#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;isMethaneLevelCritical_~retValue_acc~9#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~9#1; 103#isMethaneLevelCritical_returnLabel#1true __utac_acc__Specification1_spec__1_#t~ret44#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~7#1 := __utac_acc__Specification1_spec__1_#t~ret44#1;havoc __utac_acc__Specification1_spec__1_#t~ret44#1; 78#L797true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~7#1); 77#L797-1true havoc __utac_acc__Specification1_spec__1_#t~ret44#1, __utac_acc__Specification1_spec__1_#t~ret45#1, __utac_acc__Specification1_spec__1_~tmp~7#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification1_spec__1 } true; 59#timeShift_returnLabel#1true assume { :end_inline_timeShift } true; 97#L600-2true [2024-11-09 16:01:26,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:01:26,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2024-11-09 16:01:26,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 16:01:26,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442880254] [2024-11-09 16:01:26,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:01:26,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 16:01:26,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:01:26,728 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 16:01:26,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:01:26,771 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 16:01:26,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:01:26,777 INFO L85 PathProgramCache]: Analyzing trace with hash -680966906, now seen corresponding path program 1 times [2024-11-09 16:01:26,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 16:01:26,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691173199] [2024-11-09 16:01:26,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:01:26,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 16:01:26,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:01:26,786 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 16:01:26,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:01:26,792 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 16:01:26,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:01:26,795 INFO L85 PathProgramCache]: Analyzing trace with hash 674452170, now seen corresponding path program 1 times [2024-11-09 16:01:26,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 16:01:26,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685024677] [2024-11-09 16:01:26,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:01:26,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 16:01:26,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:01:26,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 16:01:26,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 16:01:26,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685024677] [2024-11-09 16:01:26,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685024677] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 16:01:26,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 16:01:26,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 16:01:26,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840270772] [2024-11-09 16:01:26,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 16:01:27,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 16:01:27,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 16:01:27,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 16:01:27,076 INFO L87 Difference]: Start difference. First operand has 108 states, 107 states have (on average 1.3738317757009346) internal successors, (147), 107 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 16:01:27,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 16:01:27,144 INFO L93 Difference]: Finished difference Result 102 states and 130 transitions. [2024-11-09 16:01:27,145 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 102 states and 130 transitions. [2024-11-09 16:01:27,149 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 62 [2024-11-09 16:01:27,156 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 102 states to 92 states and 120 transitions. [2024-11-09 16:01:27,157 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 92 [2024-11-09 16:01:27,158 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 92 [2024-11-09 16:01:27,159 INFO L73 IsDeterministic]: Start isDeterministic. Operand 92 states and 120 transitions. [2024-11-09 16:01:27,159 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-09 16:01:27,160 INFO L218 hiAutomatonCegarLoop]: Abstraction has 92 states and 120 transitions. [2024-11-09 16:01:27,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states and 120 transitions. [2024-11-09 16:01:27,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2024-11-09 16:01:27,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 92 states have (on average 1.3043478260869565) internal successors, (120), 91 states have internal predecessors, (120), 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) [2024-11-09 16:01:27,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 120 transitions. [2024-11-09 16:01:27,188 INFO L240 hiAutomatonCegarLoop]: Abstraction has 92 states and 120 transitions. [2024-11-09 16:01:27,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 16:01:27,195 INFO L425 stractBuchiCegarLoop]: Abstraction has 92 states and 120 transitions. [2024-11-09 16:01:27,196 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-09 16:01:27,196 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 92 states and 120 transitions. [2024-11-09 16:01:27,198 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 62 [2024-11-09 16:01:27,200 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-09 16:01:27,200 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-09 16:01:27,200 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-09 16:01:27,200 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] [2024-11-09 16:01:27,200 INFO L745 eck$LassoCheckResult]: Stem: 296#$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);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 297#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret43#1, main_~retValue_acc~8#1, main_~tmp~6#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 282#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 283#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~7#1;havoc valid_product_~retValue_acc~7#1;valid_product_~retValue_acc~7#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~7#1; 280#valid_product_returnLabel#1 main_#t~ret43#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~7#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret43#1;havoc main_#t~ret43#1; 277#L775 assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 230#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_#t~nondet41#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 231#L600-2 [2024-11-09 16:01:27,201 INFO L747 eck$LassoCheckResult]: Loop: 231#L600-2 assume !false; 309#L601 assume test_~splverifierCounter~0#1 < 4; 250#L602 havoc test_#t~nondet38#1;test_~tmp~5#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 251#L610 assume !(0 != test_~tmp~5#1); 315#L610-2 havoc test_#t~nondet39#1;test_~tmp___0~1#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 317#L620 assume !(0 != test_~tmp___0~1#1); 285#L620-2 havoc test_#t~nondet40#1;test_~tmp___2~0#1 := test_#t~nondet40#1;havoc test_#t~nondet40#1; 261#L630 assume 0 != test_~tmp___2~0#1; 263#L636-2 assume { :begin_inline_timeShift } true; 286#L442 assume !(0 != ~pumpRunning~0); 287#L442-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret27#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 299#L474 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 236#processEnvironment__wrappee__base_returnLabel#2 assume { :end_inline_processEnvironment__wrappee__base } true; 233#L474-1 havoc processEnvironment_#t~ret27#1, processEnvironment_~tmp~3#1;assume { :end_inline_processEnvironment } true; 258#L449-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret44#1, __utac_acc__Specification1_spec__1_#t~ret45#1, __utac_acc__Specification1_spec__1_~tmp~7#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification1_spec__1_~tmp~7#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;isMethaneLevelCritical_~retValue_acc~9#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~9#1; 289#isMethaneLevelCritical_returnLabel#1 __utac_acc__Specification1_spec__1_#t~ret44#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~7#1 := __utac_acc__Specification1_spec__1_#t~ret44#1;havoc __utac_acc__Specification1_spec__1_#t~ret44#1; 273#L797 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~7#1); 267#L797-1 havoc __utac_acc__Specification1_spec__1_#t~ret44#1, __utac_acc__Specification1_spec__1_#t~ret45#1, __utac_acc__Specification1_spec__1_~tmp~7#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification1_spec__1 } true; 268#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 231#L600-2 [2024-11-09 16:01:27,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:01:27,201 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2024-11-09 16:01:27,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 16:01:27,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272532037] [2024-11-09 16:01:27,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:01:27,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 16:01:27,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:01:27,209 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 16:01:27,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:01:27,216 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 16:01:27,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:01:27,217 INFO L85 PathProgramCache]: Analyzing trace with hash -232246363, now seen corresponding path program 1 times [2024-11-09 16:01:27,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 16:01:27,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26010631] [2024-11-09 16:01:27,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:01:27,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 16:01:27,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:01:27,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 16:01:27,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 16:01:27,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26010631] [2024-11-09 16:01:27,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26010631] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 16:01:27,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 16:01:27,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 16:01:27,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627664978] [2024-11-09 16:01:27,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 16:01:27,234 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-09 16:01:27,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 16:01:27,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 16:01:27,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 16:01:27,235 INFO L87 Difference]: Start difference. First operand 92 states and 120 transitions. cyclomatic complexity: 30 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) [2024-11-09 16:01:27,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 16:01:27,279 INFO L93 Difference]: Finished difference Result 144 states and 182 transitions. [2024-11-09 16:01:27,279 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 144 states and 182 transitions. [2024-11-09 16:01:27,282 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 102 [2024-11-09 16:01:27,287 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 144 states to 144 states and 182 transitions. [2024-11-09 16:01:27,287 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 144 [2024-11-09 16:01:27,287 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 144 [2024-11-09 16:01:27,288 INFO L73 IsDeterministic]: Start isDeterministic. Operand 144 states and 182 transitions. [2024-11-09 16:01:27,288 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-09 16:01:27,290 INFO L218 hiAutomatonCegarLoop]: Abstraction has 144 states and 182 transitions. [2024-11-09 16:01:27,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states and 182 transitions. [2024-11-09 16:01:27,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2024-11-09 16:01:27,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 144 states have (on average 1.2638888888888888) internal successors, (182), 143 states have internal predecessors, (182), 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) [2024-11-09 16:01:27,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 182 transitions. [2024-11-09 16:01:27,302 INFO L240 hiAutomatonCegarLoop]: Abstraction has 144 states and 182 transitions. [2024-11-09 16:01:27,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 16:01:27,305 INFO L425 stractBuchiCegarLoop]: Abstraction has 144 states and 182 transitions. [2024-11-09 16:01:27,305 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-09 16:01:27,305 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 144 states and 182 transitions. [2024-11-09 16:01:27,306 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 102 [2024-11-09 16:01:27,306 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-09 16:01:27,306 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-09 16:01:27,307 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-09 16:01:27,307 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 16:01:27,307 INFO L745 eck$LassoCheckResult]: Stem: 537#$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);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 538#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret43#1, main_~retValue_acc~8#1, main_~tmp~6#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 527#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 528#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~7#1;havoc valid_product_~retValue_acc~7#1;valid_product_~retValue_acc~7#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~7#1; 525#valid_product_returnLabel#1 main_#t~ret43#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~7#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret43#1;havoc main_#t~ret43#1; 521#L775 assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 472#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_#t~nondet41#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 473#L600-2 [2024-11-09 16:01:27,307 INFO L747 eck$LassoCheckResult]: Loop: 473#L600-2 assume !false; 553#L601 assume test_~splverifierCounter~0#1 < 4; 493#L602 havoc test_#t~nondet38#1;test_~tmp~5#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 494#L610 assume !(0 != test_~tmp~5#1); 560#L610-2 havoc test_#t~nondet39#1;test_~tmp___0~1#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 562#L620 assume !(0 != test_~tmp___0~1#1); 530#L620-2 havoc test_#t~nondet40#1;test_~tmp___2~0#1 := test_#t~nondet40#1;havoc test_#t~nondet40#1; 504#L630 assume 0 != test_~tmp___2~0#1; 506#L636-2 assume { :begin_inline_timeShift } true; 531#L442 assume !(0 != ~pumpRunning~0); 532#L442-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret27#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 542#L474 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret37#1, isHighWaterLevel_~retValue_acc~5#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~5#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~11#1;havoc isHighWaterSensorDry_~retValue_acc~11#1; 556#L899 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~11#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~11#1; 507#isHighWaterSensorDry_returnLabel#1 isHighWaterLevel_#t~ret37#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~11#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret37#1;havoc isHighWaterLevel_#t~ret37#1; 508#L576 assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~0#1 := 0; 522#L576-2 isHighWaterLevel_~retValue_acc~5#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~5#1; 546#isHighWaterLevel_returnLabel#1 processEnvironment_#t~ret27#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret37#1, isHighWaterLevel_~retValue_acc~5#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~0#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~3#1 := processEnvironment_#t~ret27#1;havoc processEnvironment_#t~ret27#1; 547#L478 assume !(0 != processEnvironment_~tmp~3#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 491#processEnvironment__wrappee__base_returnLabel#1 assume { :end_inline_processEnvironment__wrappee__base } true; 492#L474-1 havoc processEnvironment_#t~ret27#1, processEnvironment_~tmp~3#1;assume { :end_inline_processEnvironment } true; 613#L449-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret44#1, __utac_acc__Specification1_spec__1_#t~ret45#1, __utac_acc__Specification1_spec__1_~tmp~7#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification1_spec__1_~tmp~7#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;isMethaneLevelCritical_~retValue_acc~9#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~9#1; 612#isMethaneLevelCritical_returnLabel#1 __utac_acc__Specification1_spec__1_#t~ret44#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~7#1 := __utac_acc__Specification1_spec__1_#t~ret44#1;havoc __utac_acc__Specification1_spec__1_#t~ret44#1; 610#L797 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~7#1); 510#L797-1 havoc __utac_acc__Specification1_spec__1_#t~ret44#1, __utac_acc__Specification1_spec__1_#t~ret45#1, __utac_acc__Specification1_spec__1_~tmp~7#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification1_spec__1 } true; 511#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 473#L600-2 [2024-11-09 16:01:27,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:01:27,311 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2024-11-09 16:01:27,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 16:01:27,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915205760] [2024-11-09 16:01:27,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:01:27,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 16:01:27,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:01:27,325 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 16:01:27,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:01:27,337 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 16:01:27,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:01:27,338 INFO L85 PathProgramCache]: Analyzing trace with hash -1748465809, now seen corresponding path program 1 times [2024-11-09 16:01:27,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 16:01:27,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001483140] [2024-11-09 16:01:27,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:01:27,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 16:01:27,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:01:27,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 16:01:27,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 16:01:27,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001483140] [2024-11-09 16:01:27,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001483140] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 16:01:27,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 16:01:27,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 16:01:27,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964316632] [2024-11-09 16:01:27,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 16:01:27,378 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-09 16:01:27,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 16:01:27,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 16:01:27,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 16:01:27,379 INFO L87 Difference]: Start difference. First operand 144 states and 182 transitions. cyclomatic complexity: 40 Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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) [2024-11-09 16:01:27,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 16:01:27,424 INFO L93 Difference]: Finished difference Result 150 states and 188 transitions. [2024-11-09 16:01:27,424 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 150 states and 188 transitions. [2024-11-09 16:01:27,426 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 106 [2024-11-09 16:01:27,426 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 150 states to 150 states and 188 transitions. [2024-11-09 16:01:27,427 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 150 [2024-11-09 16:01:27,427 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 150 [2024-11-09 16:01:27,427 INFO L73 IsDeterministic]: Start isDeterministic. Operand 150 states and 188 transitions. [2024-11-09 16:01:27,428 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-09 16:01:27,428 INFO L218 hiAutomatonCegarLoop]: Abstraction has 150 states and 188 transitions. [2024-11-09 16:01:27,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states and 188 transitions. [2024-11-09 16:01:27,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2024-11-09 16:01:27,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 150 states have (on average 1.2533333333333334) internal successors, (188), 149 states have internal predecessors, (188), 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) [2024-11-09 16:01:27,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 188 transitions. [2024-11-09 16:01:27,432 INFO L240 hiAutomatonCegarLoop]: Abstraction has 150 states and 188 transitions. [2024-11-09 16:01:27,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 16:01:27,433 INFO L425 stractBuchiCegarLoop]: Abstraction has 150 states and 188 transitions. [2024-11-09 16:01:27,433 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-09 16:01:27,433 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 150 states and 188 transitions. [2024-11-09 16:01:27,434 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 106 [2024-11-09 16:01:27,434 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-09 16:01:27,434 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-09 16:01:27,435 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-09 16:01:27,435 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 16:01:27,435 INFO L745 eck$LassoCheckResult]: Stem: 838#$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);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 839#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret43#1, main_~retValue_acc~8#1, main_~tmp~6#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~6#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~7#1;havoc valid_product_~retValue_acc~7#1;valid_product_~retValue_acc~7#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~7#1; 825#valid_product_returnLabel#1 main_#t~ret43#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~7#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret43#1;havoc main_#t~ret43#1; 821#L775 assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 773#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_#t~nondet41#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 774#L600-2 [2024-11-09 16:01:27,435 INFO L747 eck$LassoCheckResult]: Loop: 774#L600-2 assume !false; 856#L601 assume test_~splverifierCounter~0#1 < 4; 794#L602 havoc test_#t~nondet38#1;test_~tmp~5#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 795#L610 assume !(0 != test_~tmp~5#1); 864#L610-2 havoc test_#t~nondet39#1;test_~tmp___0~1#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 866#L620 assume !(0 != test_~tmp___0~1#1); 831#L620-2 havoc test_#t~nondet40#1;test_~tmp___2~0#1 := test_#t~nondet40#1;havoc test_#t~nondet40#1; 805#L630 assume 0 != test_~tmp___2~0#1; 807#L636-2 assume { :begin_inline_timeShift } true; 832#L442 assume !(0 != ~pumpRunning~0); 833#L442-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret27#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 844#L474 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret37#1, isHighWaterLevel_~retValue_acc~5#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~5#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~11#1;havoc isHighWaterSensorDry_~retValue_acc~11#1; 859#L899 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~11#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~11#1; 808#isHighWaterSensorDry_returnLabel#1 isHighWaterLevel_#t~ret37#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~11#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret37#1;havoc isHighWaterLevel_#t~ret37#1; 809#L576 assume !(0 != isHighWaterLevel_~tmp~4#1);isHighWaterLevel_~tmp___0~0#1 := 1; 822#L576-2 isHighWaterLevel_~retValue_acc~5#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~5#1; 848#isHighWaterLevel_returnLabel#1 processEnvironment_#t~ret27#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret37#1, isHighWaterLevel_~retValue_acc~5#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~0#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~3#1 := processEnvironment_#t~ret27#1;havoc processEnvironment_#t~ret27#1; 849#L478 assume !(0 != processEnvironment_~tmp~3#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 792#processEnvironment__wrappee__base_returnLabel#1 assume { :end_inline_processEnvironment__wrappee__base } true; 793#L474-1 havoc processEnvironment_#t~ret27#1, processEnvironment_~tmp~3#1;assume { :end_inline_processEnvironment } true; 802#L449-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret44#1, __utac_acc__Specification1_spec__1_#t~ret45#1, __utac_acc__Specification1_spec__1_~tmp~7#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification1_spec__1_~tmp~7#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;isMethaneLevelCritical_~retValue_acc~9#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~9#1; 834#isMethaneLevelCritical_returnLabel#1 __utac_acc__Specification1_spec__1_#t~ret44#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~7#1 := __utac_acc__Specification1_spec__1_#t~ret44#1;havoc __utac_acc__Specification1_spec__1_#t~ret44#1; 817#L797 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~7#1); 811#L797-1 havoc __utac_acc__Specification1_spec__1_#t~ret44#1, __utac_acc__Specification1_spec__1_#t~ret45#1, __utac_acc__Specification1_spec__1_~tmp~7#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification1_spec__1 } true; 812#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 774#L600-2 [2024-11-09 16:01:27,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:01:27,436 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2024-11-09 16:01:27,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 16:01:27,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228348264] [2024-11-09 16:01:27,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:01:27,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 16:01:27,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:01:27,446 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 16:01:27,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:01:27,454 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 16:01:27,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:01:27,455 INFO L85 PathProgramCache]: Analyzing trace with hash -1047401231, now seen corresponding path program 1 times [2024-11-09 16:01:27,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 16:01:27,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259380540] [2024-11-09 16:01:27,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:01:27,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 16:01:27,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:01:27,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 16:01:27,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 16:01:27,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259380540] [2024-11-09 16:01:27,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259380540] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 16:01:27,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 16:01:27,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 16:01:27,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856512510] [2024-11-09 16:01:27,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 16:01:27,507 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-09 16:01:27,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 16:01:27,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 16:01:27,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 16:01:27,508 INFO L87 Difference]: Start difference. First operand 150 states and 188 transitions. cyclomatic complexity: 40 Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 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) [2024-11-09 16:01:27,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 16:01:27,566 INFO L93 Difference]: Finished difference Result 159 states and 197 transitions. [2024-11-09 16:01:27,566 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 159 states and 197 transitions. [2024-11-09 16:01:27,567 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 112 [2024-11-09 16:01:27,570 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 159 states to 159 states and 197 transitions. [2024-11-09 16:01:27,570 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 159 [2024-11-09 16:01:27,570 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 159 [2024-11-09 16:01:27,572 INFO L73 IsDeterministic]: Start isDeterministic. Operand 159 states and 197 transitions. [2024-11-09 16:01:27,574 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-09 16:01:27,574 INFO L218 hiAutomatonCegarLoop]: Abstraction has 159 states and 197 transitions. [2024-11-09 16:01:27,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states and 197 transitions. [2024-11-09 16:01:27,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2024-11-09 16:01:27,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 159 states have (on average 1.2389937106918238) internal successors, (197), 158 states have internal predecessors, (197), 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) [2024-11-09 16:01:27,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 197 transitions. [2024-11-09 16:01:27,582 INFO L240 hiAutomatonCegarLoop]: Abstraction has 159 states and 197 transitions. [2024-11-09 16:01:27,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 16:01:27,584 INFO L425 stractBuchiCegarLoop]: Abstraction has 159 states and 197 transitions. [2024-11-09 16:01:27,584 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-09 16:01:27,585 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 159 states and 197 transitions. [2024-11-09 16:01:27,586 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 112 [2024-11-09 16:01:27,586 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-09 16:01:27,587 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-09 16:01:27,587 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-09 16:01:27,588 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 16:01:27,588 INFO L745 eck$LassoCheckResult]: Stem: 1153#$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);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 1154#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret43#1, main_~retValue_acc~8#1, main_~tmp~6#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 1143#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1144#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~7#1;havoc valid_product_~retValue_acc~7#1;valid_product_~retValue_acc~7#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~7#1; 1141#valid_product_returnLabel#1 main_#t~ret43#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~7#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret43#1;havoc main_#t~ret43#1; 1137#L775 assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 1090#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_#t~nondet41#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1091#L600-2 [2024-11-09 16:01:27,588 INFO L747 eck$LassoCheckResult]: Loop: 1091#L600-2 assume !false; 1218#L601 assume test_~splverifierCounter~0#1 < 4; 1215#L602 havoc test_#t~nondet38#1;test_~tmp~5#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 1212#L610 assume !(0 != test_~tmp~5#1); 1209#L610-2 havoc test_#t~nondet39#1;test_~tmp___0~1#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 1206#L620 assume !(0 != test_~tmp___0~1#1); 1204#L620-2 havoc test_#t~nondet40#1;test_~tmp___2~0#1 := test_#t~nondet40#1;havoc test_#t~nondet40#1; 1121#L630 assume 0 != test_~tmp___2~0#1; 1123#L636-2 assume { :begin_inline_timeShift } true; 1147#L442 assume !(0 != ~pumpRunning~0); 1148#L442-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret27#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 1159#L474 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret37#1, isHighWaterLevel_~retValue_acc~5#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~5#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~11#1;havoc isHighWaterSensorDry_~retValue_acc~11#1; 1176#L899 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~11#1; 1177#isHighWaterSensorDry_returnLabel#1 isHighWaterLevel_#t~ret37#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~11#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret37#1;havoc isHighWaterLevel_#t~ret37#1; 1242#L576 assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~0#1 := 0; 1241#L576-2 isHighWaterLevel_~retValue_acc~5#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~5#1; 1240#isHighWaterLevel_returnLabel#1 processEnvironment_#t~ret27#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret37#1, isHighWaterLevel_~retValue_acc~5#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~0#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~3#1 := processEnvironment_#t~ret27#1;havoc processEnvironment_#t~ret27#1; 1239#L478 assume !(0 != processEnvironment_~tmp~3#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1108#processEnvironment__wrappee__base_returnLabel#1 assume { :end_inline_processEnvironment__wrappee__base } true; 1109#L474-1 havoc processEnvironment_#t~ret27#1, processEnvironment_~tmp~3#1;assume { :end_inline_processEnvironment } true; 1231#L449-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret44#1, __utac_acc__Specification1_spec__1_#t~ret45#1, __utac_acc__Specification1_spec__1_~tmp~7#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification1_spec__1_~tmp~7#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;isMethaneLevelCritical_~retValue_acc~9#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~9#1; 1229#isMethaneLevelCritical_returnLabel#1 __utac_acc__Specification1_spec__1_#t~ret44#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~7#1 := __utac_acc__Specification1_spec__1_#t~ret44#1;havoc __utac_acc__Specification1_spec__1_#t~ret44#1; 1226#L797 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~7#1); 1224#L797-1 havoc __utac_acc__Specification1_spec__1_#t~ret44#1, __utac_acc__Specification1_spec__1_#t~ret45#1, __utac_acc__Specification1_spec__1_~tmp~7#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification1_spec__1 } true; 1223#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1091#L600-2 [2024-11-09 16:01:27,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:01:27,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 5 times [2024-11-09 16:01:27,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 16:01:27,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550841388] [2024-11-09 16:01:27,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:01:27,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 16:01:27,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:01:27,602 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 16:01:27,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:01:27,610 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 16:01:27,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:01:27,612 INFO L85 PathProgramCache]: Analyzing trace with hash -1161659795, now seen corresponding path program 1 times [2024-11-09 16:01:27,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 16:01:27,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815212314] [2024-11-09 16:01:27,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:01:27,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 16:01:27,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:01:27,627 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 16:01:27,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:01:27,641 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 16:01:27,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:01:27,645 INFO L85 PathProgramCache]: Analyzing trace with hash 1882302761, now seen corresponding path program 1 times [2024-11-09 16:01:27,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 16:01:27,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667566636] [2024-11-09 16:01:27,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:01:27,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 16:01:27,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:01:27,669 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 16:01:27,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:01:27,682 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 16:01:28,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:01:28,332 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 16:01:28,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:01:28,381 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 09.11 04:01:28 BoogieIcfgContainer [2024-11-09 16:01:28,381 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-09 16:01:28,382 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 16:01:28,382 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 16:01:28,382 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 16:01:28,383 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:01:26" (3/4) ... [2024-11-09 16:01:28,384 INFO L139 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-09 16:01:28,423 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-09 16:01:28,423 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 16:01:28,424 INFO L158 Benchmark]: Toolchain (without parser) took 2693.54ms. Allocated memory was 201.3MB in the beginning and 329.3MB in the end (delta: 127.9MB). Free memory was 127.8MB in the beginning and 289.2MB in the end (delta: -161.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 16:01:28,424 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 201.3MB. Free memory is still 158.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 16:01:28,425 INFO L158 Benchmark]: CACSL2BoogieTranslator took 320.61ms. Allocated memory is still 201.3MB. Free memory was 127.6MB in the beginning and 106.8MB in the end (delta: 20.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-09 16:01:28,425 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.49ms. Allocated memory is still 201.3MB. Free memory was 106.8MB in the beginning and 104.2MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 16:01:28,425 INFO L158 Benchmark]: Boogie Preprocessor took 53.14ms. Allocated memory is still 201.3MB. Free memory was 104.2MB in the beginning and 101.4MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 16:01:28,425 INFO L158 Benchmark]: RCFGBuilder took 396.25ms. Allocated memory is still 201.3MB. Free memory was 101.4MB in the beginning and 156.3MB in the end (delta: -54.9MB). Peak memory consumption was 10.4MB. Max. memory is 16.1GB. [2024-11-09 16:01:28,426 INFO L158 Benchmark]: BuchiAutomizer took 1836.47ms. Allocated memory was 201.3MB in the beginning and 329.3MB in the end (delta: 127.9MB). Free memory was 155.3MB in the beginning and 291.3MB in the end (delta: -136.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 16:01:28,426 INFO L158 Benchmark]: Witness Printer took 41.57ms. Allocated memory is still 329.3MB. Free memory was 291.3MB in the beginning and 289.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 16:01:28,428 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 201.3MB. Free memory is still 158.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 320.61ms. Allocated memory is still 201.3MB. Free memory was 127.6MB in the beginning and 106.8MB in the end (delta: 20.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.49ms. Allocated memory is still 201.3MB. Free memory was 106.8MB in the beginning and 104.2MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.14ms. Allocated memory is still 201.3MB. Free memory was 104.2MB in the beginning and 101.4MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 396.25ms. Allocated memory is still 201.3MB. Free memory was 101.4MB in the beginning and 156.3MB in the end (delta: -54.9MB). Peak memory consumption was 10.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1836.47ms. Allocated memory was 201.3MB in the beginning and 329.3MB in the end (delta: 127.9MB). Free memory was 155.3MB in the beginning and 291.3MB in the end (delta: -136.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 41.57ms. Allocated memory is still 329.3MB. Free memory was 291.3MB in the beginning and 289.2MB 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,"libacc.i","") [49] - GenericResultAtLocation [Line: 415]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [415] - GenericResultAtLocation [Line: 424]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [424] - GenericResultAtLocation [Line: 586]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [586] - GenericResultAtLocation [Line: 654]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [654] - GenericResultAtLocation [Line: 692]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [692] - GenericResultAtLocation [Line: 788]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [788] - GenericResultAtLocation [Line: 814]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [814] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (4 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.4 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 159 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.7s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 1.3s. Construction of modules took 0.1s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 4 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, 221 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 221 mSDsluCounter, 1337 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 843 mSDsCounter, 29 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 138 IncrementalHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 29 mSolverCounterUnsat, 494 mSDtfsCounter, 138 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI3 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: 600]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L434] int pumpRunning = 0; [L435] int systemActive = 1; [L693] int cleanupTimeShifts = 4; [L816] int waterLevel = 1; [L817] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L766] int retValue_acc ; [L767] int tmp ; [L771] FCALL select_helpers() [L772] FCALL select_features() [L773] CALL, EXPR valid_product() [L684] int retValue_acc ; [L687] retValue_acc = 1 [L688] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L773] RET, EXPR valid_product() [L773] tmp = valid_product() [L775] COND TRUE \read(tmp) [L777] FCALL setup() [L778] CALL runTest() [L760] CALL test() [L591] int splverifierCounter ; [L592] int tmp ; [L593] int tmp___0 ; [L594] int tmp___1 ; [L595] int tmp___2 ; [L598] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L600] COND TRUE 1 [L602] COND TRUE splverifierCounter < 4 [L608] tmp = __VERIFIER_nondet_int() [L610] COND FALSE !(\read(tmp)) [L618] tmp___0 = __VERIFIER_nondet_int() [L620] COND FALSE !(\read(tmp___0)) [L628] tmp___2 = __VERIFIER_nondet_int() [L630] COND TRUE \read(tmp___2) [L643] CALL timeShift() [L442] COND FALSE !(\read(pumpRunning)) [L449] COND TRUE \read(systemActive) [L451] CALL processEnvironment() [L471] int tmp ; [L474] COND TRUE ! pumpRunning [L476] CALL, EXPR isHighWaterLevel() [L568] int retValue_acc ; [L569] int tmp ; [L570] int tmp___0 ; [L574] CALL, EXPR isHighWaterSensorDry() [L896] int retValue_acc ; [L899] COND TRUE waterLevel < 2 [L900] retValue_acc = 1 [L901] return (retValue_acc); [L574] RET, EXPR isHighWaterSensorDry() [L574] tmp = isHighWaterSensorDry() [L576] COND TRUE \read(tmp) [L577] tmp___0 = 0 [L581] retValue_acc = tmp___0 [L582] return (retValue_acc); [L476] RET, EXPR isHighWaterLevel() [L476] tmp = isHighWaterLevel() [L478] COND FALSE !(\read(tmp)) [L484] FCALL processEnvironment__wrappee__base() [L451] RET processEnvironment() [L457] CALL __utac_acc__Specification1_spec__1() [L790] int tmp ; [L791] int tmp___0 ; [L795] CALL, EXPR isMethaneLevelCritical() [L855] int retValue_acc ; [L858] retValue_acc = methaneLevelCritical [L859] return (retValue_acc); [L795] RET, EXPR isMethaneLevelCritical() [L795] tmp = isMethaneLevelCritical() [L797] COND FALSE !(\read(tmp)) [L457] RET __utac_acc__Specification1_spec__1() [L643] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 600]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L434] int pumpRunning = 0; [L435] int systemActive = 1; [L693] int cleanupTimeShifts = 4; [L816] int waterLevel = 1; [L817] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L766] int retValue_acc ; [L767] int tmp ; [L771] FCALL select_helpers() [L772] FCALL select_features() [L773] CALL, EXPR valid_product() [L684] int retValue_acc ; [L687] retValue_acc = 1 [L688] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L773] RET, EXPR valid_product() [L773] tmp = valid_product() [L775] COND TRUE \read(tmp) [L777] FCALL setup() [L778] CALL runTest() [L760] CALL test() [L591] int splverifierCounter ; [L592] int tmp ; [L593] int tmp___0 ; [L594] int tmp___1 ; [L595] int tmp___2 ; [L598] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L600] COND TRUE 1 [L602] COND TRUE splverifierCounter < 4 [L608] tmp = __VERIFIER_nondet_int() [L610] COND FALSE !(\read(tmp)) [L618] tmp___0 = __VERIFIER_nondet_int() [L620] COND FALSE !(\read(tmp___0)) [L628] tmp___2 = __VERIFIER_nondet_int() [L630] COND TRUE \read(tmp___2) [L643] CALL timeShift() [L442] COND FALSE !(\read(pumpRunning)) [L449] COND TRUE \read(systemActive) [L451] CALL processEnvironment() [L471] int tmp ; [L474] COND TRUE ! pumpRunning [L476] CALL, EXPR isHighWaterLevel() [L568] int retValue_acc ; [L569] int tmp ; [L570] int tmp___0 ; [L574] CALL, EXPR isHighWaterSensorDry() [L896] int retValue_acc ; [L899] COND TRUE waterLevel < 2 [L900] retValue_acc = 1 [L901] return (retValue_acc); [L574] RET, EXPR isHighWaterSensorDry() [L574] tmp = isHighWaterSensorDry() [L576] COND TRUE \read(tmp) [L577] tmp___0 = 0 [L581] retValue_acc = tmp___0 [L582] return (retValue_acc); [L476] RET, EXPR isHighWaterLevel() [L476] tmp = isHighWaterLevel() [L478] COND FALSE !(\read(tmp)) [L484] FCALL processEnvironment__wrappee__base() [L451] RET processEnvironment() [L457] CALL __utac_acc__Specification1_spec__1() [L790] int tmp ; [L791] int tmp___0 ; [L795] CALL, EXPR isMethaneLevelCritical() [L855] int retValue_acc ; [L858] retValue_acc = methaneLevelCritical [L859] return (retValue_acc); [L795] RET, EXPR isMethaneLevelCritical() [L795] tmp = isMethaneLevelCritical() [L797] COND FALSE !(\read(tmp)) [L457] RET __utac_acc__Specification1_spec__1() [L643] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-09 16:01:28,457 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)