./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/termination.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product40.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product40.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 31801b0d0a8db366707af3e7371b9dc02f7c34625c63f4c3f856015d4449b4b2 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 17:41:01,064 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 17:41:01,130 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-10-13 17:41:01,135 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 17:41:01,135 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 17:41:01,154 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 17:41:01,155 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 17:41:01,156 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 17:41:01,156 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 17:41:01,157 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 17:41:01,157 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 17:41:01,157 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 17:41:01,158 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 17:41:01,158 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-10-13 17:41:01,160 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-10-13 17:41:01,160 INFO L153 SettingsManager]: * Use old map elimination=false [2024-10-13 17:41:01,160 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-10-13 17:41:01,160 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-10-13 17:41:01,161 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-10-13 17:41:01,161 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 17:41:01,161 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-10-13 17:41:01,162 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 17:41:01,162 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 17:41:01,162 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 17:41:01,162 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 17:41:01,163 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-10-13 17:41:01,163 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-10-13 17:41:01,163 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-10-13 17:41:01,163 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 17:41:01,163 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 17:41:01,164 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 17:41:01,164 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 17:41:01,164 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-10-13 17:41:01,164 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 17:41:01,164 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 17:41:01,164 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 17:41:01,165 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 17:41:01,165 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 17:41:01,165 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-10-13 17:41:01,166 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 31801b0d0a8db366707af3e7371b9dc02f7c34625c63f4c3f856015d4449b4b2 [2024-10-13 17:41:01,359 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 17:41:01,377 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 17:41:01,380 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 17:41:01,381 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 17:41:01,382 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 17:41:01,383 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product40.cil.c [2024-10-13 17:41:02,645 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 17:41:02,811 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 17:41:02,812 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product40.cil.c [2024-10-13 17:41:02,820 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b77701c5/97784606dd624ca88f0b676f110905b0/FLAGfc464bd20 [2024-10-13 17:41:02,830 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b77701c5/97784606dd624ca88f0b676f110905b0 [2024-10-13 17:41:02,832 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 17:41:02,834 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 17:41:02,836 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 17:41:02,836 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 17:41:02,840 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 17:41:02,841 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 05:41:02" (1/1) ... [2024-10-13 17:41:02,842 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@211d0a85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:41:02, skipping insertion in model container [2024-10-13 17:41:02,842 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 05:41:02" (1/1) ... [2024-10-13 17:41:02,874 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 17:41:03,107 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 17:41:03,118 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 17:41:03,125 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [49] [2024-10-13 17:41:03,126 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [266] [2024-10-13 17:41:03,126 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [338] [2024-10-13 17:41:03,127 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [704] [2024-10-13 17:41:03,127 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [755] [2024-10-13 17:41:03,127 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [855] [2024-10-13 17:41:03,127 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [864] [2024-10-13 17:41:03,127 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [899] [2024-10-13 17:41:03,175 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 17:41:03,191 INFO L204 MainTranslator]: Completed translation [2024-10-13 17:41:03,192 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:41:03 WrapperNode [2024-10-13 17:41:03,192 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 17:41:03,192 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 17:41:03,193 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 17:41:03,193 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 17:41:03,197 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:41:03" (1/1) ... [2024-10-13 17:41:03,211 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:41:03" (1/1) ... [2024-10-13 17:41:03,245 INFO L138 Inliner]: procedures = 57, calls = 104, calls flagged for inlining = 57, calls inlined = 90, statements flattened = 581 [2024-10-13 17:41:03,245 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 17:41:03,246 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 17:41:03,246 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 17:41:03,246 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 17:41:03,254 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:41:03" (1/1) ... [2024-10-13 17:41:03,254 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:41:03" (1/1) ... [2024-10-13 17:41:03,257 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:41:03" (1/1) ... [2024-10-13 17:41:03,269 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-13 17:41:03,270 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:41:03" (1/1) ... [2024-10-13 17:41:03,270 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:41:03" (1/1) ... [2024-10-13 17:41:03,275 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:41:03" (1/1) ... [2024-10-13 17:41:03,278 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:41:03" (1/1) ... [2024-10-13 17:41:03,280 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:41:03" (1/1) ... [2024-10-13 17:41:03,281 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:41:03" (1/1) ... [2024-10-13 17:41:03,283 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 17:41:03,284 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 17:41:03,284 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 17:41:03,284 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 17:41:03,285 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:41:03" (1/1) ... [2024-10-13 17:41:03,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 17:41:03,301 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 17:41:03,312 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-13 17:41:03,313 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-10-13 17:41:03,346 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 17:41:03,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-13 17:41:03,347 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 17:41:03,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 17:41:03,400 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 17:41:03,401 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 17:41:03,716 INFO L? ?]: Removed 127 outVars from TransFormulas that were not future-live. [2024-10-13 17:41:03,717 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 17:41:03,728 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 17:41:03,728 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-13 17:41:03,728 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 05:41:03 BoogieIcfgContainer [2024-10-13 17:41:03,728 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 17:41:03,729 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-10-13 17:41:03,729 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-10-13 17:41:03,732 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-10-13 17:41:03,732 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-13 17:41:03,732 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 05:41:02" (1/3) ... [2024-10-13 17:41:03,733 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@f5bc3b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 05:41:03, skipping insertion in model container [2024-10-13 17:41:03,733 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-13 17:41:03,733 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:41:03" (2/3) ... [2024-10-13 17:41:03,733 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@f5bc3b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 05:41:03, skipping insertion in model container [2024-10-13 17:41:03,733 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-13 17:41:03,733 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 05:41:03" (3/3) ... [2024-10-13 17:41:03,734 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product40.cil.c [2024-10-13 17:41:03,772 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-10-13 17:41:03,772 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-10-13 17:41:03,772 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-10-13 17:41:03,773 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-10-13 17:41:03,773 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-10-13 17:41:03,773 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-10-13 17:41:03,773 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-10-13 17:41:03,773 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-10-13 17:41:03,776 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 174 states, 173 states have (on average 1.3583815028901733) internal successors, (235), 173 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 17:41:03,795 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 113 [2024-10-13 17:41:03,796 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-13 17:41:03,796 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-13 17:41:03,803 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 17:41:03,803 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] [2024-10-13 17:41:03,803 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-10-13 17:41:03,805 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 174 states, 173 states have (on average 1.3583815028901733) internal successors, (235), 173 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 17:41:03,812 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 113 [2024-10-13 17:41:03,815 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-13 17:41:03,815 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-13 17:41:03,816 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 17:41:03,816 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] [2024-10-13 17:41:03,820 INFO L745 eck$LassoCheckResult]: Stem: 34#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 46#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret46#1, main_~retValue_acc~6#1, main_~tmp~8#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 29#select_helpers_returnLabel#1true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 138#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~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 110#valid_product_returnLabel#1true main_#t~ret46#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret46#1;havoc main_#t~ret46#1; 61#L842true assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 91#setup_returnLabel#1true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 158#__utac_acc__Specification5_spec__1_returnLabel#1true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet16#1, test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 140#L280-2true [2024-10-13 17:41:03,821 INFO L747 eck$LassoCheckResult]: Loop: 140#L280-2true assume !false; 19#L281true assume test_~splverifierCounter~0#1 < 4; 8#L282true havoc test_#t~nondet16#1;test_~tmp~3#1 := test_#t~nondet16#1;havoc test_#t~nondet16#1; 172#L290true assume !(0 != test_~tmp~3#1); 136#L290-2true havoc test_#t~nondet17#1;test_~tmp___0~1#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; 84#L300true assume !(0 != test_~tmp___0~1#1); 137#L300-2true havoc test_#t~nondet18#1;test_~tmp___2~0#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; 95#L310true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 64#startSystem_returnLabel#1true assume { :end_inline_startSystem } true; 162#L318-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret43#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 151#isPumpRunning_returnLabel#1true __utac_acc__Specification5_spec__2_#t~ret43#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret43#1;havoc __utac_acc__Specification5_spec__2_#t~ret43#1; 101#__utac_acc__Specification5_spec__2_returnLabel#1true havoc __utac_acc__Specification5_spec__2_#t~ret43#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true; 126#L73true assume !(0 != ~pumpRunning~0); 35#L73-2true assume !(0 != ~systemActive~0); 152#L80-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret44#1, __utac_acc__Specification5_spec__3_#t~ret45#1, __utac_acc__Specification5_spec__3_~tmp~7#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~7#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; 78#getWaterLevel_returnLabel#1true __utac_acc__Specification5_spec__3_#t~ret44#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~7#1 := __utac_acc__Specification5_spec__3_#t~ret44#1;havoc __utac_acc__Specification5_spec__3_#t~ret44#1; 120#L734true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~7#1); 36#L734-1true havoc __utac_acc__Specification5_spec__3_#t~ret44#1, __utac_acc__Specification5_spec__3_#t~ret45#1, __utac_acc__Specification5_spec__3_~tmp~7#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true; 79#timeShift_returnLabel#1true assume { :end_inline_timeShift } true; 140#L280-2true [2024-10-13 17:41:03,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:41:03,826 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2024-10-13 17:41:03,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:41:03,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159138747] [2024-10-13 17:41:03,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:41:03,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:41:03,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:41:03,914 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 17:41:03,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:41:03,956 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 17:41:03,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:41:03,959 INFO L85 PathProgramCache]: Analyzing trace with hash -368675859, now seen corresponding path program 1 times [2024-10-13 17:41:03,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:41:03,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378043758] [2024-10-13 17:41:03,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:41:03,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:41:03,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 17:41:04,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 17:41:04,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 17:41:04,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378043758] [2024-10-13 17:41:04,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378043758] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 17:41:04,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 17:41:04,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 17:41:04,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351102460] [2024-10-13 17:41:04,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 17:41:04,060 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-10-13 17:41:04,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 17:41:04,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 17:41:04,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 17:41:04,088 INFO L87 Difference]: Start difference. First operand has 174 states, 173 states have (on average 1.3583815028901733) internal successors, (235), 173 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 17:41:04,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 17:41:04,148 INFO L93 Difference]: Finished difference Result 326 states and 430 transitions. [2024-10-13 17:41:04,150 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 326 states and 430 transitions. [2024-10-13 17:41:04,157 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 212 [2024-10-13 17:41:04,165 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 326 states to 306 states and 409 transitions. [2024-10-13 17:41:04,167 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 306 [2024-10-13 17:41:04,168 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 306 [2024-10-13 17:41:04,169 INFO L73 IsDeterministic]: Start isDeterministic. Operand 306 states and 409 transitions. [2024-10-13 17:41:04,171 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-13 17:41:04,171 INFO L218 hiAutomatonCegarLoop]: Abstraction has 306 states and 409 transitions. [2024-10-13 17:41:04,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states and 409 transitions. [2024-10-13 17:41:04,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 303. [2024-10-13 17:41:04,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 303 states have (on average 1.3366336633663367) internal successors, (405), 302 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 17:41:04,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 405 transitions. [2024-10-13 17:41:04,209 INFO L240 hiAutomatonCegarLoop]: Abstraction has 303 states and 405 transitions. [2024-10-13 17:41:04,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 17:41:04,213 INFO L425 stractBuchiCegarLoop]: Abstraction has 303 states and 405 transitions. [2024-10-13 17:41:04,213 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-10-13 17:41:04,213 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 303 states and 405 transitions. [2024-10-13 17:41:04,216 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 209 [2024-10-13 17:41:04,216 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-13 17:41:04,216 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-13 17:41:04,216 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 17:41:04,216 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 17:41:04,217 INFO L745 eck$LassoCheckResult]: Stem: 560#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 561#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret46#1, main_~retValue_acc~6#1, main_~tmp~8#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 556#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 557#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~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 653#valid_product_returnLabel#1 main_#t~ret46#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret46#1;havoc main_#t~ret46#1; 597#L842 assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 598#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 634#__utac_acc__Specification5_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet16#1, test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 623#L280-2 [2024-10-13 17:41:04,217 INFO L747 eck$LassoCheckResult]: Loop: 623#L280-2 assume !false; 708#L281 assume test_~splverifierCounter~0#1 < 4; 705#L282 havoc test_#t~nondet16#1;test_~tmp~3#1 := test_#t~nondet16#1;havoc test_#t~nondet16#1; 698#L290 assume !(0 != test_~tmp~3#1); 696#L290-2 havoc test_#t~nondet17#1;test_~tmp___0~1#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; 695#L300 assume !(0 != test_~tmp___0~1#1); 694#L300-2 havoc test_#t~nondet18#1;test_~tmp___2~0#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; 693#L310 assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet19#1;test_~tmp___1~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 692#L318 assume !(0 != test_~tmp___1~0#1); 602#L318-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret43#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 678#isPumpRunning_returnLabel#1 __utac_acc__Specification5_spec__2_#t~ret43#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret43#1;havoc __utac_acc__Specification5_spec__2_#t~ret43#1; 644#__utac_acc__Specification5_spec__2_returnLabel#1 havoc __utac_acc__Specification5_spec__2_#t~ret43#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true; 645#L73 assume !(0 != ~pumpRunning~0); 562#L73-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 563#L131 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; 579#L105-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 509#processEnvironment__wrappee__base_returnLabel#4 assume { :end_inline_processEnvironment__wrappee__base } true; 510#L105-3 havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 618#L131-1 havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~1#1;assume { :end_inline_processEnvironment } true; 654#L80-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret44#1, __utac_acc__Specification5_spec__3_#t~ret45#1, __utac_acc__Specification5_spec__3_~tmp~7#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~7#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; 621#getWaterLevel_returnLabel#1 __utac_acc__Specification5_spec__3_#t~ret44#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~7#1 := __utac_acc__Specification5_spec__3_#t~ret44#1;havoc __utac_acc__Specification5_spec__3_#t~ret44#1; 622#L734 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~7#1); 517#L734-1 havoc __utac_acc__Specification5_spec__3_#t~ret44#1, __utac_acc__Specification5_spec__3_#t~ret45#1, __utac_acc__Specification5_spec__3_~tmp~7#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true; 564#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 623#L280-2 [2024-10-13 17:41:04,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:41:04,217 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2024-10-13 17:41:04,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:41:04,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492345008] [2024-10-13 17:41:04,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:41:04,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:41:04,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:41:04,226 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 17:41:04,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:41:04,235 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 17:41:04,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:41:04,238 INFO L85 PathProgramCache]: Analyzing trace with hash -1347636881, now seen corresponding path program 1 times [2024-10-13 17:41:04,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:41:04,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042677084] [2024-10-13 17:41:04,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:41:04,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:41:04,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 17:41:04,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 17:41:04,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 17:41:04,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042677084] [2024-10-13 17:41:04,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042677084] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 17:41:04,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 17:41:04,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 17:41:04,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421256959] [2024-10-13 17:41:04,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 17:41:04,259 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-10-13 17:41:04,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 17:41:04,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 17:41:04,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 17:41:04,261 INFO L87 Difference]: Start difference. First operand 303 states and 405 transitions. cyclomatic complexity: 105 Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 17:41:04,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 17:41:04,338 INFO L93 Difference]: Finished difference Result 433 states and 558 transitions. [2024-10-13 17:41:04,338 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 433 states and 558 transitions. [2024-10-13 17:41:04,342 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 307 [2024-10-13 17:41:04,344 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 433 states to 433 states and 558 transitions. [2024-10-13 17:41:04,344 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 433 [2024-10-13 17:41:04,347 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 433 [2024-10-13 17:41:04,347 INFO L73 IsDeterministic]: Start isDeterministic. Operand 433 states and 558 transitions. [2024-10-13 17:41:04,348 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-13 17:41:04,348 INFO L218 hiAutomatonCegarLoop]: Abstraction has 433 states and 558 transitions. [2024-10-13 17:41:04,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states and 558 transitions. [2024-10-13 17:41:04,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 433. [2024-10-13 17:41:04,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 433 states, 433 states have (on average 1.2886836027713626) internal successors, (558), 432 states have internal predecessors, (558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 17:41:04,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 558 transitions. [2024-10-13 17:41:04,364 INFO L240 hiAutomatonCegarLoop]: Abstraction has 433 states and 558 transitions. [2024-10-13 17:41:04,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 17:41:04,365 INFO L425 stractBuchiCegarLoop]: Abstraction has 433 states and 558 transitions. [2024-10-13 17:41:04,365 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-10-13 17:41:04,365 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 433 states and 558 transitions. [2024-10-13 17:41:04,367 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 307 [2024-10-13 17:41:04,367 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-13 17:41:04,367 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-13 17:41:04,367 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 17:41:04,367 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 17:41:04,368 INFO L745 eck$LassoCheckResult]: Stem: 1301#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 1302#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret46#1, main_~retValue_acc~6#1, main_~tmp~8#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 1298#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1299#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~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 1402#valid_product_returnLabel#1 main_#t~ret46#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret46#1;havoc main_#t~ret46#1; 1341#L842 assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 1342#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 1380#__utac_acc__Specification5_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet16#1, test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1369#L280-2 [2024-10-13 17:41:04,368 INFO L747 eck$LassoCheckResult]: Loop: 1369#L280-2 assume !false; 1278#L281 assume test_~splverifierCounter~0#1 < 4; 1279#L282 havoc test_#t~nondet16#1;test_~tmp~3#1 := test_#t~nondet16#1;havoc test_#t~nondet16#1; 1450#L290 assume !(0 != test_~tmp~3#1); 1297#L290-2 havoc test_#t~nondet17#1;test_~tmp___0~1#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; 1373#L300 assume !(0 != test_~tmp___0~1#1); 1375#L300-2 havoc test_#t~nondet18#1;test_~tmp___2~0#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; 1425#L310 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 1346#startSystem_returnLabel#1 assume { :end_inline_startSystem } true; 1347#L318-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret43#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 1532#isPumpRunning_returnLabel#1 __utac_acc__Specification5_spec__2_#t~ret43#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret43#1;havoc __utac_acc__Specification5_spec__2_#t~ret43#1; 1533#__utac_acc__Specification5_spec__2_returnLabel#1 havoc __utac_acc__Specification5_spec__2_#t~ret43#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true; 1529#L73 assume !(0 != ~pumpRunning~0); 1528#L73-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 1527#L131 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; 1525#L105-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret15#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~2#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; 1524#L983-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~11#1; 1523#isHighWaterSensorDry_returnLabel#2 isHighWaterLevel_#t~ret15#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~11#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~2#1 := isHighWaterLevel_#t~ret15#1;havoc isHighWaterLevel_#t~ret15#1; 1309#L233-3 assume !(0 != isHighWaterLevel_~tmp~2#1);isHighWaterLevel_~tmp___0~0#1 := 1; 1310#L233-5 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 1323#isHighWaterLevel_returnLabel#2 processEnvironment__wrappee__highWaterSensor_#t~ret4#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret15#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret4#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1; 1518#L109-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1311#processEnvironment__wrappee__base_returnLabel#3 assume { :end_inline_processEnvironment__wrappee__base } true; 1312#L105-3 havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1404#L131-1 havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~1#1;assume { :end_inline_processEnvironment } true; 1405#L80-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret44#1, __utac_acc__Specification5_spec__3_#t~ret45#1, __utac_acc__Specification5_spec__3_~tmp~7#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~7#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; 1366#getWaterLevel_returnLabel#1 __utac_acc__Specification5_spec__3_#t~ret44#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~7#1 := __utac_acc__Specification5_spec__3_#t~ret44#1;havoc __utac_acc__Specification5_spec__3_#t~ret44#1; 1367#L734 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~7#1); 1549#L734-1 havoc __utac_acc__Specification5_spec__3_#t~ret44#1, __utac_acc__Specification5_spec__3_#t~ret45#1, __utac_acc__Specification5_spec__3_~tmp~7#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true; 1368#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1369#L280-2 [2024-10-13 17:41:04,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:41:04,369 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2024-10-13 17:41:04,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:41:04,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127082918] [2024-10-13 17:41:04,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:41:04,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:41:04,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:41:04,381 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 17:41:04,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:41:04,388 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 17:41:04,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:41:04,388 INFO L85 PathProgramCache]: Analyzing trace with hash -876967437, now seen corresponding path program 1 times [2024-10-13 17:41:04,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:41:04,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950451444] [2024-10-13 17:41:04,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:41:04,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:41:04,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 17:41:04,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 17:41:04,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 17:41:04,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950451444] [2024-10-13 17:41:04,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950451444] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 17:41:04,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 17:41:04,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 17:41:04,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209663463] [2024-10-13 17:41:04,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 17:41:04,482 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-10-13 17:41:04,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 17:41:04,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 17:41:04,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 17:41:04,484 INFO L87 Difference]: Start difference. First operand 433 states and 558 transitions. cyclomatic complexity: 128 Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 17:41:04,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 17:41:04,549 INFO L93 Difference]: Finished difference Result 457 states and 582 transitions. [2024-10-13 17:41:04,549 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 457 states and 582 transitions. [2024-10-13 17:41:04,551 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 323 [2024-10-13 17:41:04,553 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 457 states to 457 states and 582 transitions. [2024-10-13 17:41:04,553 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 457 [2024-10-13 17:41:04,553 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 457 [2024-10-13 17:41:04,554 INFO L73 IsDeterministic]: Start isDeterministic. Operand 457 states and 582 transitions. [2024-10-13 17:41:04,554 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-13 17:41:04,554 INFO L218 hiAutomatonCegarLoop]: Abstraction has 457 states and 582 transitions. [2024-10-13 17:41:04,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states and 582 transitions. [2024-10-13 17:41:04,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 457. [2024-10-13 17:41:04,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 457 states, 457 states have (on average 1.2735229759299782) internal successors, (582), 456 states have internal predecessors, (582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 17:41:04,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 582 transitions. [2024-10-13 17:41:04,569 INFO L240 hiAutomatonCegarLoop]: Abstraction has 457 states and 582 transitions. [2024-10-13 17:41:04,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 17:41:04,570 INFO L425 stractBuchiCegarLoop]: Abstraction has 457 states and 582 transitions. [2024-10-13 17:41:04,570 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-10-13 17:41:04,570 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 457 states and 582 transitions. [2024-10-13 17:41:04,572 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 323 [2024-10-13 17:41:04,572 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-13 17:41:04,572 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-13 17:41:04,572 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 17:41:04,573 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 17:41:04,573 INFO L745 eck$LassoCheckResult]: Stem: 2201#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 2202#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret46#1, main_~retValue_acc~6#1, main_~tmp~8#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 2197#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2198#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~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 2303#valid_product_returnLabel#1 main_#t~ret46#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret46#1;havoc main_#t~ret46#1; 2241#L842 assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 2242#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 2281#__utac_acc__Specification5_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet16#1, test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2268#L280-2 [2024-10-13 17:41:04,573 INFO L747 eck$LassoCheckResult]: Loop: 2268#L280-2 assume !false; 2460#L281 assume test_~splverifierCounter~0#1 < 4; 2156#L282 havoc test_#t~nondet16#1;test_~tmp~3#1 := test_#t~nondet16#1;havoc test_#t~nondet16#1; 2157#L290 assume !(0 != test_~tmp~3#1); 2323#L290-2 havoc test_#t~nondet17#1;test_~tmp___0~1#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; 2324#L300 assume !(0 != test_~tmp___0~1#1); 2325#L300-2 havoc test_#t~nondet18#1;test_~tmp___2~0#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; 2326#L310 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 2246#startSystem_returnLabel#1 assume { :end_inline_startSystem } true; 2247#L318-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret43#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 2454#isPumpRunning_returnLabel#1 __utac_acc__Specification5_spec__2_#t~ret43#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret43#1;havoc __utac_acc__Specification5_spec__2_#t~ret43#1; 2293#__utac_acc__Specification5_spec__2_returnLabel#1 havoc __utac_acc__Specification5_spec__2_#t~ret43#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true; 2294#L73 assume !(0 != ~pumpRunning~0); 2203#L73-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 2204#L131 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; 2223#L105-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret15#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~2#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; 2224#L983-1 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~11#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~11#1; 2314#isHighWaterSensorDry_returnLabel#2 isHighWaterLevel_#t~ret15#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~11#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~2#1 := isHighWaterLevel_#t~ret15#1;havoc isHighWaterLevel_#t~ret15#1; 2441#L233-3 assume !(0 != isHighWaterLevel_~tmp~2#1);isHighWaterLevel_~tmp___0~0#1 := 1; 2210#L233-5 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 2222#isHighWaterLevel_returnLabel#2 processEnvironment__wrappee__highWaterSensor_#t~ret4#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret15#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret4#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1; 2151#L109-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2153#processEnvironment__wrappee__base_returnLabel#3 assume { :end_inline_processEnvironment__wrappee__base } true; 2464#L105-3 havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 2305#L131-1 havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~1#1;assume { :end_inline_processEnvironment } true; 2306#L80-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret44#1, __utac_acc__Specification5_spec__3_#t~ret45#1, __utac_acc__Specification5_spec__3_~tmp~7#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~7#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; 2266#getWaterLevel_returnLabel#1 __utac_acc__Specification5_spec__3_#t~ret44#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~7#1 := __utac_acc__Specification5_spec__3_#t~ret44#1;havoc __utac_acc__Specification5_spec__3_#t~ret44#1; 2267#L734 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~7#1); 2205#L734-1 havoc __utac_acc__Specification5_spec__3_#t~ret44#1, __utac_acc__Specification5_spec__3_#t~ret45#1, __utac_acc__Specification5_spec__3_~tmp~7#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true; 2206#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 2268#L280-2 [2024-10-13 17:41:04,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:41:04,574 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2024-10-13 17:41:04,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:41:04,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247591077] [2024-10-13 17:41:04,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:41:04,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:41:04,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:41:04,581 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 17:41:04,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:41:04,591 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 17:41:04,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:41:04,594 INFO L85 PathProgramCache]: Analyzing trace with hash -1888084687, now seen corresponding path program 1 times [2024-10-13 17:41:04,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:41:04,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861149080] [2024-10-13 17:41:04,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:41:04,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:41:04,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 17:41:04,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 17:41:04,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 17:41:04,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861149080] [2024-10-13 17:41:04,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861149080] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 17:41:04,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 17:41:04,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 17:41:04,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035007716] [2024-10-13 17:41:04,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 17:41:04,652 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-10-13 17:41:04,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 17:41:04,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 17:41:04,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-13 17:41:04,653 INFO L87 Difference]: Start difference. First operand 457 states and 582 transitions. cyclomatic complexity: 128 Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 17:41:04,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 17:41:04,759 INFO L93 Difference]: Finished difference Result 493 states and 618 transitions. [2024-10-13 17:41:04,759 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 493 states and 618 transitions. [2024-10-13 17:41:04,762 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 347 [2024-10-13 17:41:04,766 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 493 states to 493 states and 618 transitions. [2024-10-13 17:41:04,766 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 493 [2024-10-13 17:41:04,767 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 493 [2024-10-13 17:41:04,767 INFO L73 IsDeterministic]: Start isDeterministic. Operand 493 states and 618 transitions. [2024-10-13 17:41:04,767 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-13 17:41:04,767 INFO L218 hiAutomatonCegarLoop]: Abstraction has 493 states and 618 transitions. [2024-10-13 17:41:04,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states and 618 transitions. [2024-10-13 17:41:04,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 493. [2024-10-13 17:41:04,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 493 states, 493 states have (on average 1.2535496957403651) internal successors, (618), 492 states have internal predecessors, (618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 17:41:04,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 618 transitions. [2024-10-13 17:41:04,775 INFO L240 hiAutomatonCegarLoop]: Abstraction has 493 states and 618 transitions. [2024-10-13 17:41:04,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 17:41:04,776 INFO L425 stractBuchiCegarLoop]: Abstraction has 493 states and 618 transitions. [2024-10-13 17:41:04,776 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-10-13 17:41:04,776 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 493 states and 618 transitions. [2024-10-13 17:41:04,778 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 347 [2024-10-13 17:41:04,778 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-13 17:41:04,778 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-13 17:41:04,778 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 17:41:04,778 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 17:41:04,779 INFO L745 eck$LassoCheckResult]: Stem: 3158#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 3159#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret46#1, main_~retValue_acc~6#1, main_~tmp~8#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 3153#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 3154#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~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 3266#valid_product_returnLabel#1 main_#t~ret46#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret46#1;havoc main_#t~ret46#1; 3199#L842 assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 3200#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 3241#__utac_acc__Specification5_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet16#1, test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 3304#L280-2 [2024-10-13 17:41:04,779 INFO L747 eck$LassoCheckResult]: Loop: 3304#L280-2 assume !false; 3364#L281 assume test_~splverifierCounter~0#1 < 4; 3113#L282 havoc test_#t~nondet16#1;test_~tmp~3#1 := test_#t~nondet16#1;havoc test_#t~nondet16#1; 3114#L290 assume !(0 != test_~tmp~3#1); 3155#L290-2 havoc test_#t~nondet17#1;test_~tmp___0~1#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; 3233#L300 assume !(0 != test_~tmp___0~1#1); 3234#L300-2 havoc test_#t~nondet18#1;test_~tmp___2~0#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; 3248#L310 assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet19#1;test_~tmp___1~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 3249#L318 assume !(0 != test_~tmp___1~0#1); 3205#L318-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret43#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 3300#isPumpRunning_returnLabel#1 __utac_acc__Specification5_spec__2_#t~ret43#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret43#1;havoc __utac_acc__Specification5_spec__2_#t~ret43#1; 3257#__utac_acc__Specification5_spec__2_returnLabel#1 havoc __utac_acc__Specification5_spec__2_#t~ret43#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true; 3258#L73 assume !(0 != ~pumpRunning~0); 3160#L73-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 3161#L131 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; 3333#L105-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret15#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~2#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; 3442#L983-1 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~11#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~11#1; 3440#isHighWaterSensorDry_returnLabel#2 isHighWaterLevel_#t~ret15#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~11#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~2#1 := isHighWaterLevel_#t~ret15#1;havoc isHighWaterLevel_#t~ret15#1; 3438#L233-3 assume 0 != isHighWaterLevel_~tmp~2#1;isHighWaterLevel_~tmp___0~0#1 := 0; 3166#L233-5 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 3325#isHighWaterLevel_returnLabel#2 processEnvironment__wrappee__highWaterSensor_#t~ret4#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret15#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret4#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1; 3326#L109-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 3410#processEnvironment__wrappee__base_returnLabel#3 assume { :end_inline_processEnvironment__wrappee__base } true; 3383#L105-3 havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 3240#L131-1 havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~1#1;assume { :end_inline_processEnvironment } true; 3376#L80-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret44#1, __utac_acc__Specification5_spec__3_#t~ret45#1, __utac_acc__Specification5_spec__3_~tmp~7#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~7#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; 3377#getWaterLevel_returnLabel#1 __utac_acc__Specification5_spec__3_#t~ret44#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~7#1 := __utac_acc__Specification5_spec__3_#t~ret44#1;havoc __utac_acc__Specification5_spec__3_#t~ret44#1; 3369#L734 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~7#1); 3366#L734-1 havoc __utac_acc__Specification5_spec__3_#t~ret44#1, __utac_acc__Specification5_spec__3_#t~ret45#1, __utac_acc__Specification5_spec__3_~tmp~7#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true; 3365#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 3304#L280-2 [2024-10-13 17:41:04,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:41:04,780 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 5 times [2024-10-13 17:41:04,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:41:04,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416325115] [2024-10-13 17:41:04,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:41:04,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:41:04,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:41:04,786 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 17:41:04,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:41:04,791 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 17:41:04,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:41:04,791 INFO L85 PathProgramCache]: Analyzing trace with hash 507532965, now seen corresponding path program 1 times [2024-10-13 17:41:04,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:41:04,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957545432] [2024-10-13 17:41:04,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:41:04,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:41:04,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 17:41:04,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 17:41:04,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 17:41:04,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957545432] [2024-10-13 17:41:04,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957545432] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 17:41:04,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 17:41:04,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 17:41:04,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394695846] [2024-10-13 17:41:04,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 17:41:04,822 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-10-13 17:41:04,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 17:41:04,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 17:41:04,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 17:41:04,823 INFO L87 Difference]: Start difference. First operand 493 states and 618 transitions. cyclomatic complexity: 128 Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 17:41:04,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 17:41:04,885 INFO L93 Difference]: Finished difference Result 493 states and 606 transitions. [2024-10-13 17:41:04,885 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 493 states and 606 transitions. [2024-10-13 17:41:04,888 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 347 [2024-10-13 17:41:04,889 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 493 states to 493 states and 606 transitions. [2024-10-13 17:41:04,890 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 493 [2024-10-13 17:41:04,890 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 493 [2024-10-13 17:41:04,890 INFO L73 IsDeterministic]: Start isDeterministic. Operand 493 states and 606 transitions. [2024-10-13 17:41:04,890 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-13 17:41:04,891 INFO L218 hiAutomatonCegarLoop]: Abstraction has 493 states and 606 transitions. [2024-10-13 17:41:04,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states and 606 transitions. [2024-10-13 17:41:04,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 493. [2024-10-13 17:41:04,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 493 states, 493 states have (on average 1.2292089249492901) internal successors, (606), 492 states have internal predecessors, (606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 17:41:04,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 606 transitions. [2024-10-13 17:41:04,896 INFO L240 hiAutomatonCegarLoop]: Abstraction has 493 states and 606 transitions. [2024-10-13 17:41:04,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 17:41:04,897 INFO L425 stractBuchiCegarLoop]: Abstraction has 493 states and 606 transitions. [2024-10-13 17:41:04,898 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-10-13 17:41:04,898 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 493 states and 606 transitions. [2024-10-13 17:41:04,899 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 347 [2024-10-13 17:41:04,899 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-13 17:41:04,899 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-13 17:41:04,899 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 17:41:04,899 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 17:41:04,900 INFO L745 eck$LassoCheckResult]: Stem: 4151#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 4152#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret46#1, main_~retValue_acc~6#1, main_~tmp~8#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 4146#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 4147#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~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 4263#valid_product_returnLabel#1 main_#t~ret46#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret46#1;havoc main_#t~ret46#1; 4192#L842 assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 4193#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 4230#__utac_acc__Specification5_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet16#1, test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 4220#L280-2 [2024-10-13 17:41:04,900 INFO L747 eck$LassoCheckResult]: Loop: 4220#L280-2 assume !false; 4413#L281 assume test_~splverifierCounter~0#1 < 4; 4471#L282 havoc test_#t~nondet16#1;test_~tmp~3#1 := test_#t~nondet16#1;havoc test_#t~nondet16#1; 4460#L290 assume !(0 != test_~tmp~3#1); 4289#L290-2 havoc test_#t~nondet17#1;test_~tmp___0~1#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; 4290#L300 assume !(0 != test_~tmp___0~1#1); 4456#L300-2 havoc test_#t~nondet18#1;test_~tmp___2~0#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; 4455#L310 assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet19#1;test_~tmp___1~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 4454#L318 assume !(0 != test_~tmp___1~0#1); 4404#L318-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret43#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 4453#isPumpRunning_returnLabel#1 __utac_acc__Specification5_spec__2_#t~ret43#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret43#1;havoc __utac_acc__Specification5_spec__2_#t~ret43#1; 4452#__utac_acc__Specification5_spec__2_returnLabel#1 havoc __utac_acc__Specification5_spec__2_#t~ret43#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true; 4451#L73 assume !(0 != ~pumpRunning~0); 4153#L73-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 4154#L131 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; 4175#L105-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret15#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~2#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; 4446#L983-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~11#1; 4447#isHighWaterSensorDry_returnLabel#2 isHighWaterLevel_#t~ret15#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~11#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~2#1 := isHighWaterLevel_#t~ret15#1;havoc isHighWaterLevel_#t~ret15#1; 4463#L233-3 assume 0 != isHighWaterLevel_~tmp~2#1;isHighWaterLevel_~tmp___0~0#1 := 0; 4462#L233-5 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 4339#isHighWaterLevel_returnLabel#2 processEnvironment__wrappee__highWaterSensor_#t~ret4#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret15#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret4#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1; 4340#L109-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 4161#processEnvironment__wrappee__base_returnLabel#3 assume { :end_inline_processEnvironment__wrappee__base } true; 4162#L105-3 havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 4215#L131-1 havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~1#1;assume { :end_inline_processEnvironment } true; 4265#L80-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret44#1, __utac_acc__Specification5_spec__3_#t~ret45#1, __utac_acc__Specification5_spec__3_~tmp~7#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~7#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; 4310#getWaterLevel_returnLabel#1 __utac_acc__Specification5_spec__3_#t~ret44#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~7#1 := __utac_acc__Specification5_spec__3_#t~ret44#1;havoc __utac_acc__Specification5_spec__3_#t~ret44#1; 4420#L734 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~7#1); 4155#L734-1 havoc __utac_acc__Specification5_spec__3_#t~ret44#1, __utac_acc__Specification5_spec__3_#t~ret45#1, __utac_acc__Specification5_spec__3_~tmp~7#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true; 4156#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 4220#L280-2 [2024-10-13 17:41:04,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:41:04,902 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 6 times [2024-10-13 17:41:04,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:41:04,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581555372] [2024-10-13 17:41:04,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:41:04,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:41:04,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:41:04,907 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 17:41:04,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:41:04,913 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 17:41:04,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:41:04,913 INFO L85 PathProgramCache]: Analyzing trace with hash 1518650215, now seen corresponding path program 1 times [2024-10-13 17:41:04,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:41:04,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700183230] [2024-10-13 17:41:04,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:41:04,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:41:04,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 17:41:04,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 17:41:04,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 17:41:04,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700183230] [2024-10-13 17:41:04,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700183230] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 17:41:04,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 17:41:04,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 17:41:04,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471576206] [2024-10-13 17:41:04,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 17:41:04,978 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-10-13 17:41:04,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 17:41:04,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 17:41:04,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-13 17:41:04,979 INFO L87 Difference]: Start difference. First operand 493 states and 606 transitions. cyclomatic complexity: 116 Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 17:41:05,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 17:41:05,094 INFO L93 Difference]: Finished difference Result 894 states and 1096 transitions. [2024-10-13 17:41:05,094 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 894 states and 1096 transitions. [2024-10-13 17:41:05,098 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 638 [2024-10-13 17:41:05,100 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 894 states to 894 states and 1096 transitions. [2024-10-13 17:41:05,100 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 894 [2024-10-13 17:41:05,101 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 894 [2024-10-13 17:41:05,101 INFO L73 IsDeterministic]: Start isDeterministic. Operand 894 states and 1096 transitions. [2024-10-13 17:41:05,102 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-13 17:41:05,102 INFO L218 hiAutomatonCegarLoop]: Abstraction has 894 states and 1096 transitions. [2024-10-13 17:41:05,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states and 1096 transitions. [2024-10-13 17:41:05,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 888. [2024-10-13 17:41:05,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 888 states, 888 states have (on average 1.2207207207207207) internal successors, (1084), 887 states have internal predecessors, (1084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 17:41:05,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 888 states to 888 states and 1084 transitions. [2024-10-13 17:41:05,112 INFO L240 hiAutomatonCegarLoop]: Abstraction has 888 states and 1084 transitions. [2024-10-13 17:41:05,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 17:41:05,113 INFO L425 stractBuchiCegarLoop]: Abstraction has 888 states and 1084 transitions. [2024-10-13 17:41:05,113 INFO L332 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2024-10-13 17:41:05,113 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 888 states and 1084 transitions. [2024-10-13 17:41:05,136 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 634 [2024-10-13 17:41:05,136 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-13 17:41:05,136 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-13 17:41:05,137 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 17:41:05,137 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 17:41:05,137 INFO L745 eck$LassoCheckResult]: Stem: 5550#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 5551#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret46#1, main_~retValue_acc~6#1, main_~tmp~8#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 5545#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 5546#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~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 5651#valid_product_returnLabel#1 main_#t~ret46#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret46#1;havoc main_#t~ret46#1; 5588#L842 assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 5589#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 5626#__utac_acc__Specification5_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet16#1, test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 5684#L280-2 [2024-10-13 17:41:05,137 INFO L747 eck$LassoCheckResult]: Loop: 5684#L280-2 assume !false; 5916#L281 assume test_~splverifierCounter~0#1 < 4; 5915#L282 havoc test_#t~nondet16#1;test_~tmp~3#1 := test_#t~nondet16#1;havoc test_#t~nondet16#1; 5913#L290 assume !(0 != test_~tmp~3#1); 5911#L290-2 havoc test_#t~nondet17#1;test_~tmp___0~1#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; 5909#L300 assume !(0 != test_~tmp___0~1#1); 5907#L300-2 havoc test_#t~nondet18#1;test_~tmp___2~0#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; 5903#L310 assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet19#1;test_~tmp___1~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 5817#L318 assume !(0 != test_~tmp___1~0#1); 5595#L318-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret43#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 5690#isPumpRunning_returnLabel#1 __utac_acc__Specification5_spec__2_#t~ret43#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret43#1;havoc __utac_acc__Specification5_spec__2_#t~ret43#1; 6022#__utac_acc__Specification5_spec__2_returnLabel#1 havoc __utac_acc__Specification5_spec__2_#t~ret43#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true; 6021#L73 assume !(0 != ~pumpRunning~0); 6020#L73-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 5573#L131 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; 5571#L105-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret15#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~2#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; 5572#L983-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~11#1; 5662#isHighWaterSensorDry_returnLabel#2 isHighWaterLevel_#t~ret15#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~11#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~2#1 := isHighWaterLevel_#t~ret15#1;havoc isHighWaterLevel_#t~ret15#1; 5724#L233-3 assume 0 != isHighWaterLevel_~tmp~2#1;isHighWaterLevel_~tmp___0~0#1 := 0; 5714#L233-5 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 5715#isHighWaterLevel_returnLabel#2 processEnvironment__wrappee__highWaterSensor_#t~ret4#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret15#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret4#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1; 5704#L109-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 5559#processEnvironment__wrappee__base_returnLabel#3 assume { :end_inline_processEnvironment__wrappee__base } true; 5560#L105-3 havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 5625#L131-1 havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~1#1;assume { :end_inline_processEnvironment } true; 5930#L80-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret44#1, __utac_acc__Specification5_spec__3_#t~ret45#1, __utac_acc__Specification5_spec__3_~tmp~7#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~7#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; 5928#getWaterLevel_returnLabel#1 __utac_acc__Specification5_spec__3_#t~ret44#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~7#1 := __utac_acc__Specification5_spec__3_#t~ret44#1;havoc __utac_acc__Specification5_spec__3_#t~ret44#1; 5926#L734 assume 2 != __utac_acc__Specification5_spec__3_~tmp~7#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 5923#isPumpRunning_returnLabel#2 __utac_acc__Specification5_spec__3_#t~ret45#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~2#1 := __utac_acc__Specification5_spec__3_#t~ret45#1;havoc __utac_acc__Specification5_spec__3_#t~ret45#1; 5921#L738 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~2#1); 5919#L734-1 havoc __utac_acc__Specification5_spec__3_#t~ret44#1, __utac_acc__Specification5_spec__3_#t~ret45#1, __utac_acc__Specification5_spec__3_~tmp~7#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true; 5918#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 5684#L280-2 [2024-10-13 17:41:05,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:41:05,139 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 7 times [2024-10-13 17:41:05,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:41:05,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472139294] [2024-10-13 17:41:05,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:41:05,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:41:05,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:41:05,148 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 17:41:05,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:41:05,155 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 17:41:05,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:41:05,155 INFO L85 PathProgramCache]: Analyzing trace with hash -887026878, now seen corresponding path program 1 times [2024-10-13 17:41:05,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:41:05,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804020163] [2024-10-13 17:41:05,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:41:05,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:41:05,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:41:05,161 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 17:41:05,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:41:05,168 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 17:41:05,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:41:05,168 INFO L85 PathProgramCache]: Analyzing trace with hash -290469333, now seen corresponding path program 1 times [2024-10-13 17:41:05,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:41:05,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697322618] [2024-10-13 17:41:05,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:41:05,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:41:05,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:41:05,182 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 17:41:05,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:41:05,192 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 17:41:05,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:41:05,871 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 17:41:05,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:41:05,923 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 05:41:05 BoogieIcfgContainer [2024-10-13 17:41:05,923 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-10-13 17:41:05,923 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-13 17:41:05,923 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-13 17:41:05,924 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-13 17:41:05,924 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 05:41:03" (3/4) ... [2024-10-13 17:41:05,925 INFO L136 WitnessPrinter]: Generating witness for non-termination counterexample [2024-10-13 17:41:05,967 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-13 17:41:05,968 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-13 17:41:05,968 INFO L158 Benchmark]: Toolchain (without parser) took 3134.47ms. Allocated memory was 159.4MB in the beginning and 213.9MB in the end (delta: 54.5MB). Free memory was 101.8MB in the beginning and 140.0MB in the end (delta: -38.2MB). Peak memory consumption was 18.4MB. Max. memory is 16.1GB. [2024-10-13 17:41:05,968 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 159.4MB. Free memory is still 121.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 17:41:05,969 INFO L158 Benchmark]: CACSL2BoogieTranslator took 356.33ms. Allocated memory is still 159.4MB. Free memory was 101.3MB in the beginning and 80.4MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-10-13 17:41:05,969 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.95ms. Allocated memory is still 159.4MB. Free memory was 80.4MB in the beginning and 77.3MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-13 17:41:05,969 INFO L158 Benchmark]: Boogie Preprocessor took 37.36ms. Allocated memory is still 159.4MB. Free memory was 77.3MB in the beginning and 73.6MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-13 17:41:05,969 INFO L158 Benchmark]: RCFGBuilder took 444.71ms. Allocated memory is still 159.4MB. Free memory was 73.6MB in the beginning and 111.0MB in the end (delta: -37.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-10-13 17:41:05,969 INFO L158 Benchmark]: BuchiAutomizer took 2194.07ms. Allocated memory was 159.4MB in the beginning and 213.9MB in the end (delta: 54.5MB). Free memory was 111.0MB in the beginning and 143.2MB in the end (delta: -32.2MB). Peak memory consumption was 24.8MB. Max. memory is 16.1GB. [2024-10-13 17:41:05,970 INFO L158 Benchmark]: Witness Printer took 44.36ms. Allocated memory is still 213.9MB. Free memory was 143.2MB in the beginning and 140.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-13 17:41:05,971 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 159.4MB. Free memory is still 121.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 356.33ms. Allocated memory is still 159.4MB. Free memory was 101.3MB in the beginning and 80.4MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.95ms. Allocated memory is still 159.4MB. Free memory was 80.4MB in the beginning and 77.3MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.36ms. Allocated memory is still 159.4MB. Free memory was 77.3MB in the beginning and 73.6MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 444.71ms. Allocated memory is still 159.4MB. Free memory was 73.6MB in the beginning and 111.0MB in the end (delta: -37.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * BuchiAutomizer took 2194.07ms. Allocated memory was 159.4MB in the beginning and 213.9MB in the end (delta: 54.5MB). Free memory was 111.0MB in the beginning and 143.2MB in the end (delta: -32.2MB). Peak memory consumption was 24.8MB. Max. memory is 16.1GB. * Witness Printer took 44.36ms. Allocated memory is still 213.9MB. Free memory was 143.2MB in the beginning and 140.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [49] - GenericResultAtLocation [Line: 266]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [266] - GenericResultAtLocation [Line: 338]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [338] - GenericResultAtLocation [Line: 704]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [704] - GenericResultAtLocation [Line: 755]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [755] - GenericResultAtLocation [Line: 855]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [855] - GenericResultAtLocation [Line: 864]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [864] - GenericResultAtLocation [Line: 899]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [899] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (6 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.6 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 888 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.1s and 7 iterations. TraceHistogramMax:1. Analysis of lassos took 1.3s. Construction of modules took 0.3s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 6. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 9 StatesRemovedByMinimization, 2 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, 544 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 544 mSDsluCounter, 3447 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2165 mSDsCounter, 91 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 431 IncrementalHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 91 mSolverCounterUnsat, 1282 mSDtfsCounter, 431 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI6 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 280]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L61] int pumpRunning = 0; [L62] int systemActive = 1; [L508] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L707] int switchedOnBeforeTS ; [L756] int cleanupTimeShifts = 4; [L900] int waterLevel = 1; [L901] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L833] int retValue_acc ; [L834] int tmp ; [L838] FCALL select_helpers() [L839] FCALL select_features() [L840] CALL, EXPR valid_product() [L891] int retValue_acc ; [L894] retValue_acc = 1 [L895] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L840] RET, EXPR valid_product() [L840] tmp = valid_product() [L842] COND TRUE \read(tmp) [L844] FCALL setup() [L845] CALL runTest() [L823] CALL __utac_acc__Specification5_spec__1() [L712] switchedOnBeforeTS = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L823] RET __utac_acc__Specification5_spec__1() [L824] CALL test() [L271] int splverifierCounter ; [L272] int tmp ; [L273] int tmp___0 ; [L274] int tmp___1 ; [L275] int tmp___2 ; [L278] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] Loop: [L280] COND TRUE 1 [L282] COND TRUE splverifierCounter < 4 [L288] tmp = __VERIFIER_nondet_int() [L290] COND FALSE !(\read(tmp)) [L298] tmp___0 = __VERIFIER_nondet_int() [L300] COND FALSE !(\read(tmp___0)) [L308] tmp___2 = __VERIFIER_nondet_int() [L310] COND FALSE !(\read(tmp___2)) [L316] tmp___1 = __VERIFIER_nondet_int() [L318] COND FALSE !(\read(tmp___1)) [L327] CALL timeShift() [L71] CALL __utac_acc__Specification5_spec__2() [L721] CALL, EXPR isPumpRunning() [L180] int retValue_acc ; [L183] retValue_acc = pumpRunning [L184] return (retValue_acc); [L721] RET, EXPR isPumpRunning() [L721] switchedOnBeforeTS = isPumpRunning() [L71] RET __utac_acc__Specification5_spec__2() [L73] COND FALSE !(\read(pumpRunning)) [L80] COND TRUE \read(systemActive) [L82] CALL processEnvironment() [L128] int tmp ; [L131] COND FALSE !(\read(pumpRunning)) [L146] CALL processEnvironment__wrappee__highWaterSensor() [L102] int tmp ; [L105] COND TRUE ! pumpRunning [L107] CALL, EXPR isHighWaterLevel() [L225] int retValue_acc ; [L226] int tmp ; [L227] int tmp___0 ; [L231] CALL, EXPR isHighWaterSensorDry() [L980] int retValue_acc ; [L983] COND TRUE waterLevel < 2 [L984] retValue_acc = 1 [L985] return (retValue_acc); [L231] RET, EXPR isHighWaterSensorDry() [L231] tmp = isHighWaterSensorDry() [L233] COND TRUE \read(tmp) [L234] tmp___0 = 0 [L238] retValue_acc = tmp___0 [L239] return (retValue_acc); [L107] RET, EXPR isHighWaterLevel() [L107] tmp = isHighWaterLevel() [L109] COND FALSE !(\read(tmp)) [L115] FCALL processEnvironment__wrappee__base() [L146] RET processEnvironment__wrappee__highWaterSensor() [L82] RET processEnvironment() [L88] CALL __utac_acc__Specification5_spec__3() [L727] int tmp ; [L728] int tmp___0 ; [L732] CALL, EXPR getWaterLevel() [L971] int retValue_acc ; [L974] retValue_acc = waterLevel [L975] return (retValue_acc); [L732] RET, EXPR getWaterLevel() [L732] tmp = getWaterLevel() [L734] COND TRUE tmp != 2 [L736] CALL, EXPR isPumpRunning() [L180] int retValue_acc ; [L183] retValue_acc = pumpRunning [L184] return (retValue_acc); [L736] RET, EXPR isPumpRunning() [L736] tmp___0 = isPumpRunning() [L738] COND FALSE !(\read(tmp___0)) [L88] RET __utac_acc__Specification5_spec__3() [L327] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 280]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L61] int pumpRunning = 0; [L62] int systemActive = 1; [L508] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L707] int switchedOnBeforeTS ; [L756] int cleanupTimeShifts = 4; [L900] int waterLevel = 1; [L901] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L833] int retValue_acc ; [L834] int tmp ; [L838] FCALL select_helpers() [L839] FCALL select_features() [L840] CALL, EXPR valid_product() [L891] int retValue_acc ; [L894] retValue_acc = 1 [L895] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L840] RET, EXPR valid_product() [L840] tmp = valid_product() [L842] COND TRUE \read(tmp) [L844] FCALL setup() [L845] CALL runTest() [L823] CALL __utac_acc__Specification5_spec__1() [L712] switchedOnBeforeTS = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L823] RET __utac_acc__Specification5_spec__1() [L824] CALL test() [L271] int splverifierCounter ; [L272] int tmp ; [L273] int tmp___0 ; [L274] int tmp___1 ; [L275] int tmp___2 ; [L278] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] Loop: [L280] COND TRUE 1 [L282] COND TRUE splverifierCounter < 4 [L288] tmp = __VERIFIER_nondet_int() [L290] COND FALSE !(\read(tmp)) [L298] tmp___0 = __VERIFIER_nondet_int() [L300] COND FALSE !(\read(tmp___0)) [L308] tmp___2 = __VERIFIER_nondet_int() [L310] COND FALSE !(\read(tmp___2)) [L316] tmp___1 = __VERIFIER_nondet_int() [L318] COND FALSE !(\read(tmp___1)) [L327] CALL timeShift() [L71] CALL __utac_acc__Specification5_spec__2() [L721] CALL, EXPR isPumpRunning() [L180] int retValue_acc ; [L183] retValue_acc = pumpRunning [L184] return (retValue_acc); [L721] RET, EXPR isPumpRunning() [L721] switchedOnBeforeTS = isPumpRunning() [L71] RET __utac_acc__Specification5_spec__2() [L73] COND FALSE !(\read(pumpRunning)) [L80] COND TRUE \read(systemActive) [L82] CALL processEnvironment() [L128] int tmp ; [L131] COND FALSE !(\read(pumpRunning)) [L146] CALL processEnvironment__wrappee__highWaterSensor() [L102] int tmp ; [L105] COND TRUE ! pumpRunning [L107] CALL, EXPR isHighWaterLevel() [L225] int retValue_acc ; [L226] int tmp ; [L227] int tmp___0 ; [L231] CALL, EXPR isHighWaterSensorDry() [L980] int retValue_acc ; [L983] COND TRUE waterLevel < 2 [L984] retValue_acc = 1 [L985] return (retValue_acc); [L231] RET, EXPR isHighWaterSensorDry() [L231] tmp = isHighWaterSensorDry() [L233] COND TRUE \read(tmp) [L234] tmp___0 = 0 [L238] retValue_acc = tmp___0 [L239] return (retValue_acc); [L107] RET, EXPR isHighWaterLevel() [L107] tmp = isHighWaterLevel() [L109] COND FALSE !(\read(tmp)) [L115] FCALL processEnvironment__wrappee__base() [L146] RET processEnvironment__wrappee__highWaterSensor() [L82] RET processEnvironment() [L88] CALL __utac_acc__Specification5_spec__3() [L727] int tmp ; [L728] int tmp___0 ; [L732] CALL, EXPR getWaterLevel() [L971] int retValue_acc ; [L974] retValue_acc = waterLevel [L975] return (retValue_acc); [L732] RET, EXPR getWaterLevel() [L732] tmp = getWaterLevel() [L734] COND TRUE tmp != 2 [L736] CALL, EXPR isPumpRunning() [L180] int retValue_acc ; [L183] retValue_acc = pumpRunning [L184] return (retValue_acc); [L736] RET, EXPR isPumpRunning() [L736] tmp___0 = isPumpRunning() [L738] COND FALSE !(\read(tmp___0)) [L88] RET __utac_acc__Specification5_spec__3() [L327] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-10-13 17:41:05,992 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)