./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product61.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec5_product61.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 12ff1c3352fe657a44d5503b0c0550124efd9c84e66a259e2d68c9ba31095791 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 16:04:36,244 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 16:04:36,304 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-09 16:04:36,307 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 16:04:36,308 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 16:04:36,339 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 16:04:36,341 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 16:04:36,341 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 16:04:36,342 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 16:04:36,345 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 16:04:36,345 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 16:04:36,345 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 16:04:36,345 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 16:04:36,345 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-09 16:04:36,346 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-09 16:04:36,346 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-09 16:04:36,346 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-09 16:04:36,346 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-09 16:04:36,346 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-09 16:04:36,346 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 16:04:36,347 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-09 16:04:36,349 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 16:04:36,349 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 16:04:36,349 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 16:04:36,349 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 16:04:36,349 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-09 16:04:36,350 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-09 16:04:36,350 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-09 16:04:36,350 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 16:04:36,350 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 16:04:36,350 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 16:04:36,350 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 16:04:36,350 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-09 16:04:36,350 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 16:04:36,351 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 16:04:36,351 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 16:04:36,351 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 16:04:36,351 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 16:04:36,351 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-09 16:04:36,351 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 12ff1c3352fe657a44d5503b0c0550124efd9c84e66a259e2d68c9ba31095791 [2024-11-09 16:04:36,674 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 16:04:36,711 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 16:04:36,713 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 16:04:36,714 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 16:04:36,717 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 16:04:36,718 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product61.cil.c [2024-11-09 16:04:38,089 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 16:04:38,303 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 16:04:38,304 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product61.cil.c [2024-11-09 16:04:38,315 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a1570fee/9c60e9710ff442cda173b9730afc9474/FLAG4264ad746 [2024-11-09 16:04:38,327 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a1570fee/9c60e9710ff442cda173b9730afc9474 [2024-11-09 16:04:38,330 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 16:04:38,332 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 16:04:38,334 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 16:04:38,334 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 16:04:38,338 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 16:04:38,339 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:04:38" (1/1) ... [2024-11-09 16:04:38,340 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f3a4021 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:04:38, skipping insertion in model container [2024-11-09 16:04:38,340 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:04:38" (1/1) ... [2024-11-09 16:04:38,373 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 16:04:38,670 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 16:04:38,681 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 16:04:38,693 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [49] [2024-11-09 16:04:38,694 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [118] [2024-11-09 16:04:38,694 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [372] [2024-11-09 16:04:38,694 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [476] [2024-11-09 16:04:38,695 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [842] [2024-11-09 16:04:38,695 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [892] [2024-11-09 16:04:38,695 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [930] [2024-11-09 16:04:38,695 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [939] [2024-11-09 16:04:38,782 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 16:04:38,817 INFO L204 MainTranslator]: Completed translation [2024-11-09 16:04:38,821 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:04:38 WrapperNode [2024-11-09 16:04:38,821 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 16:04:38,822 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 16:04:38,822 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 16:04:38,823 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 16:04:38,831 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:04:38" (1/1) ... [2024-11-09 16:04:38,849 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:04:38" (1/1) ... [2024-11-09 16:04:38,925 INFO L138 Inliner]: procedures = 59, calls = 108, calls flagged for inlining = 61, calls inlined = 183, statements flattened = 1243 [2024-11-09 16:04:38,926 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 16:04:38,926 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 16:04:38,926 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 16:04:38,926 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 16:04:38,942 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:04:38" (1/1) ... [2024-11-09 16:04:38,943 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:04:38" (1/1) ... [2024-11-09 16:04:38,954 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:04:38" (1/1) ... [2024-11-09 16:04:38,993 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-09 16:04:38,993 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:04:38" (1/1) ... [2024-11-09 16:04:38,994 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:04:38" (1/1) ... [2024-11-09 16:04:39,017 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:04:38" (1/1) ... [2024-11-09 16:04:39,033 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:04:38" (1/1) ... [2024-11-09 16:04:39,041 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:04:38" (1/1) ... [2024-11-09 16:04:39,043 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:04:38" (1/1) ... [2024-11-09 16:04:39,050 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 16:04:39,055 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 16:04:39,055 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 16:04:39,055 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 16:04:39,055 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:04:38" (1/1) ... [2024-11-09 16:04:39,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:04:39,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:04:39,121 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 16:04:39,126 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-09 16:04:39,182 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 16:04:39,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 16:04:39,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 16:04:39,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 16:04:39,286 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 16:04:39,289 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 16:04:39,818 INFO L? ?]: Removed 313 outVars from TransFormulas that were not future-live. [2024-11-09 16:04:39,818 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 16:04:39,843 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 16:04:39,845 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-09 16:04:39,845 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:04:39 BoogieIcfgContainer [2024-11-09 16:04:39,848 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 16:04:39,848 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-09 16:04:39,848 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-09 16:04:39,851 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-09 16:04:39,852 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-09 16:04:39,852 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 09.11 04:04:38" (1/3) ... [2024-11-09 16:04:39,852 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4d79d9bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.11 04:04:39, skipping insertion in model container [2024-11-09 16:04:39,852 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-09 16:04:39,852 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:04:38" (2/3) ... [2024-11-09 16:04:39,853 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4d79d9bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.11 04:04:39, skipping insertion in model container [2024-11-09 16:04:39,853 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-09 16:04:39,853 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:04:39" (3/3) ... [2024-11-09 16:04:39,854 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product61.cil.c [2024-11-09 16:04:39,895 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-09 16:04:39,895 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-09 16:04:39,896 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-09 16:04:39,896 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-09 16:04:39,896 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-09 16:04:39,896 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-09 16:04:39,896 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-09 16:04:39,896 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-09 16:04:39,900 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 331 states, 330 states have (on average 1.3484848484848484) internal successors, (445), 330 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 16:04:39,921 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 216 [2024-11-09 16:04:39,922 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-09 16:04:39,922 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-09 16:04:39,928 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 16:04:39,928 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 16:04:39,928 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-09 16:04:39,929 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 331 states, 330 states have (on average 1.3484848484848484) internal successors, (445), 330 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 16:04:39,936 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 216 [2024-11-09 16:04:39,936 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-09 16:04:39,936 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-09 16:04:39,937 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 16:04:39,937 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 16:04:39,942 INFO L745 eck$LassoCheckResult]: Stem: 184#$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;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 198#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret55#1, main_~retValue_acc~13#1, main_~tmp~11#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~11#1;assume { :begin_inline_select_helpers } true; 24#select_helpers_returnLabel#1true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 297#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~12#1;havoc valid_product_~retValue_acc~12#1;valid_product_~retValue_acc~12#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~12#1; 98#valid_product_returnLabel#1true main_#t~ret55#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~12#1;assume { :end_inline_valid_product } true;main_~tmp~11#1 := main_#t~ret55#1;havoc main_#t~ret55#1; 281#L1023true assume 0 != main_~tmp~11#1;assume { :begin_inline_setup } true; 79#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; 310#__utac_acc__Specification5_spec__1_returnLabel#1true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 155#L64-2true [2024-11-09 16:04:39,942 INFO L747 eck$LassoCheckResult]: Loop: 155#L64-2true assume !false; 331#L65true assume test_~splverifierCounter~0#1 < 4; 35#L66true havoc test_#t~nondet4#1;test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 248#L74true assume !(0 != test_~tmp~0#1); 124#L74-2true havoc test_#t~nondet5#1;test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 140#L84true assume !(0 != test_~tmp___0~0#1); 26#L84-2true havoc test_#t~nondet6#1;test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 141#L94true assume 0 != test_~tmp___2~0#1; 116#L100-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret51#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; 306#isPumpRunning_returnLabel#1true __utac_acc__Specification5_spec__2_#t~ret51#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret51#1;havoc __utac_acc__Specification5_spec__2_#t~ret51#1; 261#__utac_acc__Specification5_spec__2_returnLabel#1true havoc __utac_acc__Specification5_spec__2_#t~ret51#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true; 63#L140true assume !(0 != ~pumpRunning~0); 58#L140-2true assume !(0 != ~systemActive~0); 70#L147-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_#t~ret53#1, __utac_acc__Specification5_spec__3_~tmp~10#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~10#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; 229#getWaterLevel_returnLabel#1true __utac_acc__Specification5_spec__3_#t~ret52#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~10#1 := __utac_acc__Specification5_spec__3_#t~ret52#1;havoc __utac_acc__Specification5_spec__3_#t~ret52#1; 286#L871true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~10#1); 253#L871-1true havoc __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_#t~ret53#1, __utac_acc__Specification5_spec__3_~tmp~10#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true; 230#timeShift_returnLabel#1true assume { :end_inline_timeShift } true; 155#L64-2true [2024-11-09 16:04:39,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:04:39,947 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2024-11-09 16:04:39,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 16:04:39,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286581190] [2024-11-09 16:04:39,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:04:39,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 16:04:40,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:04:40,036 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 16:04:40,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:04:40,073 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 16:04:40,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:04:40,076 INFO L85 PathProgramCache]: Analyzing trace with hash -1418717874, now seen corresponding path program 1 times [2024-11-09 16:04:40,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 16:04:40,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287188953] [2024-11-09 16:04:40,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:04:40,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 16:04:40,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:04:40,088 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 16:04:40,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:04:40,097 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 16:04:40,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:04:40,099 INFO L85 PathProgramCache]: Analyzing trace with hash 1536897015, now seen corresponding path program 1 times [2024-11-09 16:04:40,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 16:04:40,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267383481] [2024-11-09 16:04:40,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:04:40,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 16:04:40,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:04:40,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 16:04:40,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 16:04:40,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267383481] [2024-11-09 16:04:40,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267383481] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 16:04:40,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 16:04:40,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 16:04:40,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722559538] [2024-11-09 16:04:40,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 16:04:40,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 16:04:40,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 16:04:40,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 16:04:40,421 INFO L87 Difference]: Start difference. First operand has 331 states, 330 states have (on average 1.3484848484848484) internal successors, (445), 330 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 16:04:40,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 16:04:40,541 INFO L93 Difference]: Finished difference Result 325 states and 428 transitions. [2024-11-09 16:04:40,543 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 325 states and 428 transitions. [2024-11-09 16:04:40,562 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 210 [2024-11-09 16:04:40,567 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 325 states to 315 states and 418 transitions. [2024-11-09 16:04:40,571 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 315 [2024-11-09 16:04:40,572 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 315 [2024-11-09 16:04:40,572 INFO L73 IsDeterministic]: Start isDeterministic. Operand 315 states and 418 transitions. [2024-11-09 16:04:40,574 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-09 16:04:40,574 INFO L218 hiAutomatonCegarLoop]: Abstraction has 315 states and 418 transitions. [2024-11-09 16:04:40,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states and 418 transitions. [2024-11-09 16:04:40,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 315. [2024-11-09 16:04:40,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 315 states have (on average 1.326984126984127) internal successors, (418), 314 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 16:04:40,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 418 transitions. [2024-11-09 16:04:40,618 INFO L240 hiAutomatonCegarLoop]: Abstraction has 315 states and 418 transitions. [2024-11-09 16:04:40,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 16:04:40,622 INFO L425 stractBuchiCegarLoop]: Abstraction has 315 states and 418 transitions. [2024-11-09 16:04:40,622 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-09 16:04:40,622 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 315 states and 418 transitions. [2024-11-09 16:04:40,624 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 210 [2024-11-09 16:04:40,624 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-09 16:04:40,624 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-09 16:04:40,625 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 16:04:40,625 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 16:04:40,625 INFO L745 eck$LassoCheckResult]: Stem: 930#$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;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 931#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret55#1, main_~retValue_acc~13#1, main_~tmp~11#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~11#1;assume { :begin_inline_select_helpers } true; 718#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 719#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~12#1;havoc valid_product_~retValue_acc~12#1;valid_product_~retValue_acc~12#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~12#1; 844#valid_product_returnLabel#1 main_#t~ret55#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~12#1;assume { :end_inline_valid_product } true;main_~tmp~11#1 := main_#t~ret55#1;havoc main_#t~ret55#1; 845#L1023 assume 0 != main_~tmp~11#1;assume { :begin_inline_setup } true; 818#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; 819#__utac_acc__Specification5_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 908#L64-2 [2024-11-09 16:04:40,626 INFO L747 eck$LassoCheckResult]: Loop: 908#L64-2 assume !false; 909#L65 assume test_~splverifierCounter~0#1 < 4; 740#L66 havoc test_#t~nondet4#1;test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 741#L74 assume !(0 != test_~tmp~0#1); 879#L74-2 havoc test_#t~nondet5#1;test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 880#L84 assume !(0 != test_~tmp___0~0#1); 722#L84-2 havoc test_#t~nondet6#1;test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 723#L94 assume 0 != test_~tmp___2~0#1; 867#L100-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret51#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; 868#isPumpRunning_returnLabel#1 __utac_acc__Specification5_spec__2_#t~ret51#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret51#1;havoc __utac_acc__Specification5_spec__2_#t~ret51#1; 977#__utac_acc__Specification5_spec__2_returnLabel#1 havoc __utac_acc__Specification5_spec__2_#t~ret51#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true; 790#L140 assume !(0 != ~pumpRunning~0); 784#L140-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret10#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 785#L224 assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret12#1, isMethaneAlarm_~retValue_acc~0#1;havoc isMethaneAlarm_~retValue_acc~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;isMethaneLevelCritical_~retValue_acc~4#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; 975#isMethaneLevelCritical_returnLabel#1 isMethaneAlarm_#t~ret12#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~0#1 := isMethaneAlarm_#t~ret12#1;havoc isMethaneAlarm_#t~ret12#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~0#1; 987#isMethaneAlarm_returnLabel#1 processEnvironment_#t~ret10#1 := isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret12#1, isMethaneAlarm_~retValue_acc~0#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~3#1 := processEnvironment_#t~ret10#1;havoc processEnvironment_#t~ret10#1; 839#L228 assume 0 != processEnvironment_~tmp~3#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; 840#deactivatePump_returnLabel#1 assume { :end_inline_deactivatePump } true; 846#L224-1 havoc processEnvironment_#t~ret10#1, processEnvironment_~tmp~3#1;assume { :end_inline_processEnvironment } true; 803#L147-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_#t~ret53#1, __utac_acc__Specification5_spec__3_~tmp~10#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~10#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; 804#getWaterLevel_returnLabel#1 __utac_acc__Specification5_spec__3_#t~ret52#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~10#1 := __utac_acc__Specification5_spec__3_#t~ret52#1;havoc __utac_acc__Specification5_spec__3_#t~ret52#1; 963#L871 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~10#1); 699#L871-1 havoc __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_#t~ret53#1, __utac_acc__Specification5_spec__3_~tmp~10#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true; 962#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 908#L64-2 [2024-11-09 16:04:40,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:04:40,627 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2024-11-09 16:04:40,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 16:04:40,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837590427] [2024-11-09 16:04:40,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:04:40,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 16:04:40,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:04:40,634 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 16:04:40,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:04:40,642 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 16:04:40,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:04:40,643 INFO L85 PathProgramCache]: Analyzing trace with hash 616162711, now seen corresponding path program 1 times [2024-11-09 16:04:40,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 16:04:40,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379250363] [2024-11-09 16:04:40,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:04:40,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 16:04:40,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:04:40,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 16:04:40,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 16:04:40,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379250363] [2024-11-09 16:04:40,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379250363] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 16:04:40,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 16:04:40,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 16:04:40,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819466716] [2024-11-09 16:04:40,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 16:04:40,662 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-09 16:04:40,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 16:04:40,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 16:04:40,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 16:04:40,663 INFO L87 Difference]: Start difference. First operand 315 states and 418 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) [2024-11-09 16:04:40,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 16:04:40,768 INFO L93 Difference]: Finished difference Result 331 states and 417 transitions. [2024-11-09 16:04:40,768 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 331 states and 417 transitions. [2024-11-09 16:04:40,771 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 226 [2024-11-09 16:04:40,774 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 331 states to 331 states and 417 transitions. [2024-11-09 16:04:40,776 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 331 [2024-11-09 16:04:40,777 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 331 [2024-11-09 16:04:40,777 INFO L73 IsDeterministic]: Start isDeterministic. Operand 331 states and 417 transitions. [2024-11-09 16:04:40,778 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-09 16:04:40,778 INFO L218 hiAutomatonCegarLoop]: Abstraction has 331 states and 417 transitions. [2024-11-09 16:04:40,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states and 417 transitions. [2024-11-09 16:04:40,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 331. [2024-11-09 16:04:40,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 331 states have (on average 1.2598187311178248) internal successors, (417), 330 states have internal predecessors, (417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 16:04:40,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 417 transitions. [2024-11-09 16:04:40,799 INFO L240 hiAutomatonCegarLoop]: Abstraction has 331 states and 417 transitions. [2024-11-09 16:04:40,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 16:04:40,800 INFO L425 stractBuchiCegarLoop]: Abstraction has 331 states and 417 transitions. [2024-11-09 16:04:40,800 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-09 16:04:40,800 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 331 states and 417 transitions. [2024-11-09 16:04:40,801 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 226 [2024-11-09 16:04:40,802 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-09 16:04:40,802 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-09 16:04:40,803 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 16:04:40,803 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 16:04:40,803 INFO L745 eck$LassoCheckResult]: Stem: 1531#$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;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 1532#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret55#1, main_~retValue_acc~13#1, main_~tmp~11#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~11#1;assume { :begin_inline_select_helpers } true; 1351#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1352#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~12#1;havoc valid_product_~retValue_acc~12#1;valid_product_~retValue_acc~12#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~12#1; 1448#valid_product_returnLabel#1 main_#t~ret55#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~12#1;assume { :end_inline_valid_product } true;main_~tmp~11#1 := main_#t~ret55#1;havoc main_#t~ret55#1; 1449#L1023 assume 0 != main_~tmp~11#1;assume { :begin_inline_setup } true; 1431#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; 1432#__utac_acc__Specification5_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1596#L64-2 [2024-11-09 16:04:40,804 INFO L747 eck$LassoCheckResult]: Loop: 1596#L64-2 assume !false; 1617#L65 assume test_~splverifierCounter~0#1 < 4; 1616#L66 havoc test_#t~nondet4#1;test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 1614#L74 assume !(0 != test_~tmp~0#1); 1612#L74-2 havoc test_#t~nondet5#1;test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 1610#L84 assume !(0 != test_~tmp___0~0#1); 1353#L84-2 havoc test_#t~nondet6#1;test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 1354#L94 assume 0 != test_~tmp___2~0#1; 1467#L100-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret51#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; 1468#isPumpRunning_returnLabel#1 __utac_acc__Specification5_spec__2_#t~ret51#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret51#1;havoc __utac_acc__Specification5_spec__2_#t~ret51#1; 1576#__utac_acc__Specification5_spec__2_returnLabel#1 havoc __utac_acc__Specification5_spec__2_#t~ret51#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true; 1410#L140 assume !(0 != ~pumpRunning~0); 1406#L140-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret10#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 1407#L224 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret9#1, processEnvironment__wrappee__methaneQuery_~tmp~2#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~2#1; 1574#L198-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 1503#L172-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret21#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~5#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~5#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;havoc isHighWaterSensorDry_~retValue_acc~6#1; 1418#L457-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; 1419#isHighWaterSensorDry_returnLabel#4 isHighWaterLevel_#t~ret21#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~5#1 := isHighWaterLevel_#t~ret21#1;havoc isHighWaterLevel_#t~ret21#1; 1589#L343-9 assume 0 != isHighWaterLevel_~tmp~5#1;isHighWaterLevel_~tmp___0~1#1 := 0; 1575#L343-11 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 1544#isHighWaterLevel_returnLabel#4 processEnvironment__wrappee__highWaterSensor_#t~ret8#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret21#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~5#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret8#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1; 1487#L176-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1475#processEnvironment__wrappee__base_returnLabel#7 assume { :end_inline_processEnvironment__wrappee__base } true; 1329#L172-7 havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1586#L198-3 havoc processEnvironment__wrappee__methaneQuery_#t~ret9#1, processEnvironment__wrappee__methaneQuery_~tmp~2#1;assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 1592#L224-1 havoc processEnvironment_#t~ret10#1, processEnvironment_~tmp~3#1;assume { :end_inline_processEnvironment } true; 1625#L147-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_#t~ret53#1, __utac_acc__Specification5_spec__3_~tmp~10#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~10#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; 1624#getWaterLevel_returnLabel#1 __utac_acc__Specification5_spec__3_#t~ret52#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~10#1 := __utac_acc__Specification5_spec__3_#t~ret52#1;havoc __utac_acc__Specification5_spec__3_#t~ret52#1; 1622#L871 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~10#1); 1619#L871-1 havoc __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_#t~ret53#1, __utac_acc__Specification5_spec__3_~tmp~10#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true; 1618#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1596#L64-2 [2024-11-09 16:04:40,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:04:40,804 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2024-11-09 16:04:40,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 16:04:40,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578955960] [2024-11-09 16:04:40,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:04:40,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 16:04:40,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:04:40,815 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 16:04:40,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:04:40,824 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 16:04:40,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:04:40,828 INFO L85 PathProgramCache]: Analyzing trace with hash -156173758, now seen corresponding path program 1 times [2024-11-09 16:04:40,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 16:04:40,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455437453] [2024-11-09 16:04:40,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:04:40,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 16:04:40,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:04:40,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 16:04:40,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 16:04:40,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455437453] [2024-11-09 16:04:40,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455437453] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 16:04:40,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 16:04:40,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 16:04:40,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542227729] [2024-11-09 16:04:40,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 16:04:40,909 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-09 16:04:40,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 16:04:40,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 16:04:40,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 16:04:40,911 INFO L87 Difference]: Start difference. First operand 331 states and 417 transitions. cyclomatic complexity: 88 Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 16:04:41,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 16:04:41,042 INFO L93 Difference]: Finished difference Result 654 states and 820 transitions. [2024-11-09 16:04:41,043 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 654 states and 820 transitions. [2024-11-09 16:04:41,046 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 452 [2024-11-09 16:04:41,048 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 654 states to 654 states and 820 transitions. [2024-11-09 16:04:41,049 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 654 [2024-11-09 16:04:41,049 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 654 [2024-11-09 16:04:41,049 INFO L73 IsDeterministic]: Start isDeterministic. Operand 654 states and 820 transitions. [2024-11-09 16:04:41,051 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-09 16:04:41,051 INFO L218 hiAutomatonCegarLoop]: Abstraction has 654 states and 820 transitions. [2024-11-09 16:04:41,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 654 states and 820 transitions. [2024-11-09 16:04:41,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 654 to 651. [2024-11-09 16:04:41,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 651 states, 651 states have (on average 1.250384024577573) internal successors, (814), 650 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 16:04:41,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 651 states to 651 states and 814 transitions. [2024-11-09 16:04:41,065 INFO L240 hiAutomatonCegarLoop]: Abstraction has 651 states and 814 transitions. [2024-11-09 16:04:41,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 16:04:41,066 INFO L425 stractBuchiCegarLoop]: Abstraction has 651 states and 814 transitions. [2024-11-09 16:04:41,067 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-09 16:04:41,067 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 651 states and 814 transitions. [2024-11-09 16:04:41,069 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 450 [2024-11-09 16:04:41,069 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-09 16:04:41,069 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-09 16:04:41,070 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 16:04:41,070 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, 1] [2024-11-09 16:04:41,070 INFO L745 eck$LassoCheckResult]: Stem: 2550#$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;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 2551#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret55#1, main_~retValue_acc~13#1, main_~tmp~11#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~11#1;assume { :begin_inline_select_helpers } true; 2348#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2349#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~12#1;havoc valid_product_~retValue_acc~12#1;valid_product_~retValue_acc~12#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~12#1; 2448#valid_product_returnLabel#1 main_#t~ret55#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~12#1;assume { :end_inline_valid_product } true;main_~tmp~11#1 := main_#t~ret55#1;havoc main_#t~ret55#1; 2449#L1023 assume 0 != main_~tmp~11#1;assume { :begin_inline_setup } true; 2429#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; 2430#__utac_acc__Specification5_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2519#L64-2 [2024-11-09 16:04:41,071 INFO L747 eck$LassoCheckResult]: Loop: 2519#L64-2 assume !false; 2520#L65 assume test_~splverifierCounter~0#1 < 4; 2363#L66 havoc test_#t~nondet4#1;test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 2364#L74 assume !(0 != test_~tmp~0#1); 2485#L74-2 havoc test_#t~nondet5#1;test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 2486#L84 assume !(0 != test_~tmp___0~0#1); 2414#L84-2 havoc test_#t~nondet6#1;test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 2750#L94 assume 0 != test_~tmp___2~0#1; 2749#L100-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret51#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; 2747#isPumpRunning_returnLabel#1 __utac_acc__Specification5_spec__2_#t~ret51#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret51#1;havoc __utac_acc__Specification5_spec__2_#t~ret51#1; 2745#__utac_acc__Specification5_spec__2_returnLabel#1 havoc __utac_acc__Specification5_spec__2_#t~ret51#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true; 2741#L140 assume !(0 != ~pumpRunning~0); 2740#L140-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret10#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 2615#L224 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret9#1, processEnvironment__wrappee__methaneQuery_~tmp~2#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~2#1; 2616#L198-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 2727#L172-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret21#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~5#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~5#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;havoc isHighWaterSensorDry_~retValue_acc~6#1; 2726#L457-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; 2416#isHighWaterSensorDry_returnLabel#4 isHighWaterLevel_#t~ret21#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~5#1 := isHighWaterLevel_#t~ret21#1;havoc isHighWaterLevel_#t~ret21#1; 2725#L343-9 assume 0 != isHighWaterLevel_~tmp~5#1;isHighWaterLevel_~tmp___0~1#1 := 0; 2724#L343-11 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 2723#isHighWaterLevel_returnLabel#4 processEnvironment__wrappee__highWaterSensor_#t~ret8#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret21#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~5#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret8#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1; 2722#L176-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2481#processEnvironment__wrappee__base_returnLabel#7 assume { :end_inline_processEnvironment__wrappee__base } true; 2328#L172-7 havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 2632#L198-3 havoc processEnvironment__wrappee__methaneQuery_#t~ret9#1, processEnvironment__wrappee__methaneQuery_~tmp~2#1;assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 2450#L224-1 havoc processEnvironment_#t~ret10#1, processEnvironment_~tmp~3#1;assume { :end_inline_processEnvironment } true; 2420#L147-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_#t~ret53#1, __utac_acc__Specification5_spec__3_~tmp~10#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~10#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; 2421#getWaterLevel_returnLabel#1 __utac_acc__Specification5_spec__3_#t~ret52#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~10#1 := __utac_acc__Specification5_spec__3_#t~ret52#1;havoc __utac_acc__Specification5_spec__3_#t~ret52#1; 2594#L871 assume 2 != __utac_acc__Specification5_spec__3_~tmp~10#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; 2599#isPumpRunning_returnLabel#2 __utac_acc__Specification5_spec__3_#t~ret53#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~3#1 := __utac_acc__Specification5_spec__3_#t~ret53#1;havoc __utac_acc__Specification5_spec__3_#t~ret53#1; 2341#L875 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~3#1); 2342#L871-1 havoc __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_#t~ret53#1, __utac_acc__Specification5_spec__3_~tmp~10#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true; 2764#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 2519#L64-2 [2024-11-09 16:04:41,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:04:41,071 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2024-11-09 16:04:41,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 16:04:41,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472899185] [2024-11-09 16:04:41,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:04:41,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 16:04:41,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:04:41,077 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 16:04:41,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:04:41,082 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 16:04:41,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:04:41,083 INFO L85 PathProgramCache]: Analyzing trace with hash 219876221, now seen corresponding path program 1 times [2024-11-09 16:04:41,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 16:04:41,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611934211] [2024-11-09 16:04:41,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:04:41,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 16:04:41,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:04:41,089 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 16:04:41,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:04:41,095 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 16:04:41,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:04:41,095 INFO L85 PathProgramCache]: Analyzing trace with hash 1533290932, now seen corresponding path program 1 times [2024-11-09 16:04:41,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 16:04:41,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847919476] [2024-11-09 16:04:41,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:04:41,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 16:04:41,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:04:41,105 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 16:04:41,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:04:41,114 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 16:04:41,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:04:41,892 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 16:04:41,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:04:41,942 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 09.11 04:04:41 BoogieIcfgContainer [2024-11-09 16:04:41,945 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-09 16:04:41,946 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 16:04:41,946 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 16:04:41,946 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 16:04:41,946 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:04:39" (3/4) ... [2024-11-09 16:04:41,948 INFO L139 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-09 16:04:42,006 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-09 16:04:42,008 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 16:04:42,008 INFO L158 Benchmark]: Toolchain (without parser) took 3677.02ms. Allocated memory was 197.1MB in the beginning and 293.6MB in the end (delta: 96.5MB). Free memory was 118.2MB in the beginning and 171.3MB in the end (delta: -53.1MB). Peak memory consumption was 42.7MB. Max. memory is 16.1GB. [2024-11-09 16:04:42,009 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 197.1MB. Free memory was 164.0MB in the beginning and 163.8MB in the end (delta: 188.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 16:04:42,009 INFO L158 Benchmark]: CACSL2BoogieTranslator took 487.78ms. Allocated memory is still 197.1MB. Free memory was 118.0MB in the beginning and 149.1MB in the end (delta: -31.2MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. [2024-11-09 16:04:42,009 INFO L158 Benchmark]: Boogie Procedure Inliner took 103.41ms. Allocated memory is still 197.1MB. Free memory was 149.1MB in the beginning and 143.6MB in the end (delta: 5.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 16:04:42,009 INFO L158 Benchmark]: Boogie Preprocessor took 127.80ms. Allocated memory is still 197.1MB. Free memory was 143.6MB in the beginning and 137.8MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-09 16:04:42,010 INFO L158 Benchmark]: RCFGBuilder took 793.08ms. Allocated memory is still 197.1MB. Free memory was 137.8MB in the beginning and 117.1MB in the end (delta: 20.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-09 16:04:42,010 INFO L158 Benchmark]: BuchiAutomizer took 2097.25ms. Allocated memory was 197.1MB in the beginning and 293.6MB in the end (delta: 96.5MB). Free memory was 116.5MB in the beginning and 174.4MB in the end (delta: -57.9MB). Peak memory consumption was 39.6MB. Max. memory is 16.1GB. [2024-11-09 16:04:42,010 INFO L158 Benchmark]: Witness Printer took 62.18ms. Allocated memory is still 293.6MB. Free memory was 174.4MB in the beginning and 171.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 16:04:42,011 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 197.1MB. Free memory was 164.0MB in the beginning and 163.8MB in the end (delta: 188.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 487.78ms. Allocated memory is still 197.1MB. Free memory was 118.0MB in the beginning and 149.1MB in the end (delta: -31.2MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 103.41ms. Allocated memory is still 197.1MB. Free memory was 149.1MB in the beginning and 143.6MB in the end (delta: 5.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 127.80ms. Allocated memory is still 197.1MB. Free memory was 143.6MB in the beginning and 137.8MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 793.08ms. Allocated memory is still 197.1MB. Free memory was 137.8MB in the beginning and 117.1MB in the end (delta: 20.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * BuchiAutomizer took 2097.25ms. Allocated memory was 197.1MB in the beginning and 293.6MB in the end (delta: 96.5MB). Free memory was 116.5MB in the beginning and 174.4MB in the end (delta: -57.9MB). Peak memory consumption was 39.6MB. Max. memory is 16.1GB. * Witness Printer took 62.18ms. Allocated memory is still 293.6MB. Free memory was 174.4MB in the beginning and 171.3MB 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,"scenario.i","") [49] - GenericResultAtLocation [Line: 118]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [118] - GenericResultAtLocation [Line: 372]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [372] - GenericResultAtLocation [Line: 476]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [476] - GenericResultAtLocation [Line: 842]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [842] - GenericResultAtLocation [Line: 892]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [892] - GenericResultAtLocation [Line: 930]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [930] - GenericResultAtLocation [Line: 939]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [939] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 651 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.0s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 1.4s. Construction of modules took 0.2s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 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, 1365 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1365 mSDsluCounter, 3150 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2031 mSDsCounter, 54 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 213 IncrementalHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 54 mSolverCounterUnsat, 1119 mSDtfsCounter, 213 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 64]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L128] int pumpRunning = 0; [L129] int systemActive = 1; [L374] int waterLevel = 1; [L375] int methaneLevelCritical = 0; [L646] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L844] int switchedOnBeforeTS ; [L940] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L1014] int retValue_acc ; [L1015] int tmp ; [L1019] FCALL select_helpers() [L1020] FCALL select_features() [L1021] CALL, EXPR valid_product() [L922] int retValue_acc ; [L925] retValue_acc = 1 [L926] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L1021] RET, EXPR valid_product() [L1021] tmp = valid_product() [L1023] COND TRUE \read(tmp) [L1025] FCALL setup() [L1026] CALL runTest() [L1007] CALL __utac_acc__Specification5_spec__1() [L849] switchedOnBeforeTS = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L1007] RET __utac_acc__Specification5_spec__1() [L1008] CALL test() [L55] int splverifierCounter ; [L56] int tmp ; [L57] int tmp___0 ; [L58] int tmp___1 ; [L59] int tmp___2 ; [L62] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] Loop: [L64] COND TRUE 1 [L66] COND TRUE splverifierCounter < 4 [L72] tmp = __VERIFIER_nondet_int() [L74] COND FALSE !(\read(tmp)) [L82] tmp___0 = __VERIFIER_nondet_int() [L84] COND FALSE !(\read(tmp___0)) [L92] tmp___2 = __VERIFIER_nondet_int() [L94] COND TRUE \read(tmp___2) [L107] CALL timeShift() [L138] CALL __utac_acc__Specification5_spec__2() [L858] CALL, EXPR isPumpRunning() [L290] int retValue_acc ; [L293] retValue_acc = pumpRunning [L294] return (retValue_acc); [L858] RET, EXPR isPumpRunning() [L858] switchedOnBeforeTS = isPumpRunning() [L138] RET __utac_acc__Specification5_spec__2() [L140] COND FALSE !(\read(pumpRunning)) [L147] COND TRUE \read(systemActive) [L149] CALL processEnvironment() [L221] int tmp ; [L224] COND FALSE !(\read(pumpRunning)) [L239] CALL processEnvironment__wrappee__methaneQuery() [L195] int tmp ; [L198] COND FALSE !(\read(pumpRunning)) [L213] CALL processEnvironment__wrappee__highWaterSensor() [L169] int tmp ; [L172] COND TRUE ! pumpRunning [L174] CALL, EXPR isHighWaterLevel() [L335] int retValue_acc ; [L336] int tmp ; [L337] int tmp___0 ; [L341] CALL, EXPR isHighWaterSensorDry() [L454] int retValue_acc ; [L457] COND TRUE waterLevel < 2 [L458] retValue_acc = 1 [L459] return (retValue_acc); [L341] RET, EXPR isHighWaterSensorDry() [L341] tmp = isHighWaterSensorDry() [L343] COND TRUE \read(tmp) [L344] tmp___0 = 0 [L348] retValue_acc = tmp___0 [L349] return (retValue_acc); [L174] RET, EXPR isHighWaterLevel() [L174] tmp = isHighWaterLevel() [L176] COND FALSE !(\read(tmp)) [L182] FCALL processEnvironment__wrappee__base() [L213] RET processEnvironment__wrappee__highWaterSensor() [L239] RET processEnvironment__wrappee__methaneQuery() [L149] RET processEnvironment() [L155] CALL __utac_acc__Specification5_spec__3() [L864] int tmp ; [L865] int tmp___0 ; [L869] CALL, EXPR getWaterLevel() [L445] int retValue_acc ; [L448] retValue_acc = waterLevel [L449] return (retValue_acc); [L869] RET, EXPR getWaterLevel() [L869] tmp = getWaterLevel() [L871] COND TRUE tmp != 2 [L873] CALL, EXPR isPumpRunning() [L290] int retValue_acc ; [L293] retValue_acc = pumpRunning [L294] return (retValue_acc); [L873] RET, EXPR isPumpRunning() [L873] tmp___0 = isPumpRunning() [L875] COND FALSE !(\read(tmp___0)) [L155] RET __utac_acc__Specification5_spec__3() [L107] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 64]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L128] int pumpRunning = 0; [L129] int systemActive = 1; [L374] int waterLevel = 1; [L375] int methaneLevelCritical = 0; [L646] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L844] int switchedOnBeforeTS ; [L940] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L1014] int retValue_acc ; [L1015] int tmp ; [L1019] FCALL select_helpers() [L1020] FCALL select_features() [L1021] CALL, EXPR valid_product() [L922] int retValue_acc ; [L925] retValue_acc = 1 [L926] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L1021] RET, EXPR valid_product() [L1021] tmp = valid_product() [L1023] COND TRUE \read(tmp) [L1025] FCALL setup() [L1026] CALL runTest() [L1007] CALL __utac_acc__Specification5_spec__1() [L849] switchedOnBeforeTS = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L1007] RET __utac_acc__Specification5_spec__1() [L1008] CALL test() [L55] int splverifierCounter ; [L56] int tmp ; [L57] int tmp___0 ; [L58] int tmp___1 ; [L59] int tmp___2 ; [L62] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] Loop: [L64] COND TRUE 1 [L66] COND TRUE splverifierCounter < 4 [L72] tmp = __VERIFIER_nondet_int() [L74] COND FALSE !(\read(tmp)) [L82] tmp___0 = __VERIFIER_nondet_int() [L84] COND FALSE !(\read(tmp___0)) [L92] tmp___2 = __VERIFIER_nondet_int() [L94] COND TRUE \read(tmp___2) [L107] CALL timeShift() [L138] CALL __utac_acc__Specification5_spec__2() [L858] CALL, EXPR isPumpRunning() [L290] int retValue_acc ; [L293] retValue_acc = pumpRunning [L294] return (retValue_acc); [L858] RET, EXPR isPumpRunning() [L858] switchedOnBeforeTS = isPumpRunning() [L138] RET __utac_acc__Specification5_spec__2() [L140] COND FALSE !(\read(pumpRunning)) [L147] COND TRUE \read(systemActive) [L149] CALL processEnvironment() [L221] int tmp ; [L224] COND FALSE !(\read(pumpRunning)) [L239] CALL processEnvironment__wrappee__methaneQuery() [L195] int tmp ; [L198] COND FALSE !(\read(pumpRunning)) [L213] CALL processEnvironment__wrappee__highWaterSensor() [L169] int tmp ; [L172] COND TRUE ! pumpRunning [L174] CALL, EXPR isHighWaterLevel() [L335] int retValue_acc ; [L336] int tmp ; [L337] int tmp___0 ; [L341] CALL, EXPR isHighWaterSensorDry() [L454] int retValue_acc ; [L457] COND TRUE waterLevel < 2 [L458] retValue_acc = 1 [L459] return (retValue_acc); [L341] RET, EXPR isHighWaterSensorDry() [L341] tmp = isHighWaterSensorDry() [L343] COND TRUE \read(tmp) [L344] tmp___0 = 0 [L348] retValue_acc = tmp___0 [L349] return (retValue_acc); [L174] RET, EXPR isHighWaterLevel() [L174] tmp = isHighWaterLevel() [L176] COND FALSE !(\read(tmp)) [L182] FCALL processEnvironment__wrappee__base() [L213] RET processEnvironment__wrappee__highWaterSensor() [L239] RET processEnvironment__wrappee__methaneQuery() [L149] RET processEnvironment() [L155] CALL __utac_acc__Specification5_spec__3() [L864] int tmp ; [L865] int tmp___0 ; [L869] CALL, EXPR getWaterLevel() [L445] int retValue_acc ; [L448] retValue_acc = waterLevel [L449] return (retValue_acc); [L869] RET, EXPR getWaterLevel() [L869] tmp = getWaterLevel() [L871] COND TRUE tmp != 2 [L873] CALL, EXPR isPumpRunning() [L290] int retValue_acc ; [L293] retValue_acc = pumpRunning [L294] return (retValue_acc); [L873] RET, EXPR isPumpRunning() [L873] tmp___0 = isPumpRunning() [L875] COND FALSE !(\read(tmp___0)) [L155] RET __utac_acc__Specification5_spec__3() [L107] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-09 16:04:42,038 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)