./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product52.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 3289d67d 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_spec4_product52.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 e4fc698cb41b54b4c4983dda7de32b2f9c78701d9e96fbbf9a36472a5bdbde25 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 08:48:05,854 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 08:48:05,920 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-17 08:48:05,924 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 08:48:05,926 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 08:48:05,927 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2024-11-17 08:48:05,960 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 08:48:05,960 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 08:48:05,961 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 08:48:05,961 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 08:48:05,963 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 08:48:05,964 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 08:48:05,965 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 08:48:05,968 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 08:48:05,969 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-17 08:48:05,969 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-17 08:48:05,969 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-17 08:48:05,969 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-17 08:48:05,970 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-17 08:48:05,970 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-17 08:48:05,971 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 08:48:05,971 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-17 08:48:05,972 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 08:48:05,972 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 08:48:05,972 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 08:48:05,972 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 08:48:05,973 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-17 08:48:05,973 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-17 08:48:05,973 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-17 08:48:05,973 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 08:48:05,974 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 08:48:05,975 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 08:48:05,975 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-17 08:48:05,975 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-17 08:48:05,976 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 08:48:05,976 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 08:48:05,976 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 08:48:05,976 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 08:48:05,977 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 08:48:05,977 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-17 08:48:05,978 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e4fc698cb41b54b4c4983dda7de32b2f9c78701d9e96fbbf9a36472a5bdbde25 [2024-11-17 08:48:06,269 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 08:48:06,294 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 08:48:06,299 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 08:48:06,300 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 08:48:06,301 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 08:48:06,302 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product52.cil.c [2024-11-17 08:48:07,756 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 08:48:07,960 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 08:48:07,960 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product52.cil.c [2024-11-17 08:48:07,977 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79323d17f/582ac248f2f548789af4623d2bbec951/FLAGc29fac053 [2024-11-17 08:48:07,989 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79323d17f/582ac248f2f548789af4623d2bbec951 [2024-11-17 08:48:07,993 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 08:48:07,994 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 08:48:07,995 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 08:48:07,996 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 08:48:08,003 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 08:48:08,004 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 08:48:07" (1/1) ... [2024-11-17 08:48:08,005 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1087d4fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:48:08, skipping insertion in model container [2024-11-17 08:48:08,005 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 08:48:07" (1/1) ... [2024-11-17 08:48:08,046 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 08:48:08,359 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 08:48:08,370 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 08:48:08,378 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [49] [2024-11-17 08:48:08,379 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [160] [2024-11-17 08:48:08,379 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [388] [2024-11-17 08:48:08,379 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [458] [2024-11-17 08:48:08,379 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [824] [2024-11-17 08:48:08,379 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [923] [2024-11-17 08:48:08,380 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [958] [2024-11-17 08:48:08,380 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [967] [2024-11-17 08:48:08,422 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 08:48:08,442 INFO L204 MainTranslator]: Completed translation [2024-11-17 08:48:08,442 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:48:08 WrapperNode [2024-11-17 08:48:08,442 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 08:48:08,443 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 08:48:08,444 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 08:48:08,444 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 08:48:08,451 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:48:08" (1/1) ... [2024-11-17 08:48:08,476 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:48:08" (1/1) ... [2024-11-17 08:48:08,510 INFO L138 Inliner]: procedures = 57, calls = 102, calls flagged for inlining = 55, calls inlined = 83, statements flattened = 557 [2024-11-17 08:48:08,510 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 08:48:08,511 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 08:48:08,511 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 08:48:08,511 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 08:48:08,537 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:48:08" (1/1) ... [2024-11-17 08:48:08,538 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:48:08" (1/1) ... [2024-11-17 08:48:08,546 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:48:08" (1/1) ... [2024-11-17 08:48:08,568 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]. [2024-11-17 08:48:08,569 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:48:08" (1/1) ... [2024-11-17 08:48:08,569 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:48:08" (1/1) ... [2024-11-17 08:48:08,577 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:48:08" (1/1) ... [2024-11-17 08:48:08,578 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:48:08" (1/1) ... [2024-11-17 08:48:08,592 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:48:08" (1/1) ... [2024-11-17 08:48:08,593 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:48:08" (1/1) ... [2024-11-17 08:48:08,601 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 08:48:08,602 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 08:48:08,606 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 08:48:08,606 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 08:48:08,607 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:48:08" (1/1) ... [2024-11-17 08:48:08,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:48:08,620 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:48:08,635 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) [2024-11-17 08:48:08,642 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 [2024-11-17 08:48:08,678 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 08:48:08,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 08:48:08,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 08:48:08,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 08:48:08,745 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 08:48:08,747 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 08:48:09,219 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L134-5: getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; [2024-11-17 08:48:09,219 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L288-1: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1; [2024-11-17 08:48:09,219 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L288-3: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1; [2024-11-17 08:48:09,219 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L288-5: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1; [2024-11-17 08:48:09,220 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L157-1: isLowWaterSensorDry_#res#1 := isLowWaterSensorDry_~retValue_acc~3#1; [2024-11-17 08:48:09,220 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L157-3: isLowWaterSensorDry_#res#1 := isLowWaterSensorDry_~retValue_acc~3#1; [2024-11-17 08:48:09,220 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L157-5: isLowWaterSensorDry_#res#1 := isLowWaterSensorDry_~retValue_acc~3#1; [2024-11-17 08:48:09,220 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L920-1: main_#res#1 := main_~retValue_acc~11#1; [2024-11-17 08:48:09,221 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L343-1: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1; [2024-11-17 08:48:09,221 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L343-3: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1; [2024-11-17 08:48:09,221 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L343-5: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1; [2024-11-17 08:48:09,221 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L343-7: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1; [2024-11-17 08:48:09,222 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L343-9: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1; [2024-11-17 08:48:09,222 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L343-11: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1; [2024-11-17 08:48:09,222 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L955-1: valid_product_#res#1 := valid_product_~retValue_acc~13#1; [2024-11-17 08:48:09,222 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L362-1: isLowWaterLevel_#res#1 := isLowWaterLevel_~retValue_acc~7#1; [2024-11-17 08:48:09,222 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L362-3: isLowWaterLevel_#res#1 := isLowWaterLevel_~retValue_acc~7#1; [2024-11-17 08:48:09,222 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L362-5: isLowWaterLevel_#res#1 := isLowWaterLevel_~retValue_acc~7#1; [2024-11-17 08:48:09,222 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L148-1: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; [2024-11-17 08:48:09,222 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L148-3: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; [2024-11-17 08:48:09,222 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L148-5: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; [2024-11-17 08:48:09,223 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L148-7: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; [2024-11-17 08:48:09,224 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L148-9: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; [2024-11-17 08:48:09,224 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L148-11: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; [2024-11-17 08:48:09,224 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L134-1: getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; [2024-11-17 08:48:09,224 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L134-3: getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; [2024-11-17 08:48:09,258 INFO L? ?]: Removed 130 outVars from TransFormulas that were not future-live. [2024-11-17 08:48:09,258 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 08:48:09,280 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 08:48:09,283 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 08:48:09,283 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 08:48:09 BoogieIcfgContainer [2024-11-17 08:48:09,283 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 08:48:09,284 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-17 08:48:09,287 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-17 08:48:09,291 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-17 08:48:09,292 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-17 08:48:09,292 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 17.11 08:48:07" (1/3) ... [2024-11-17 08:48:09,292 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1b29131 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.11 08:48:09, skipping insertion in model container [2024-11-17 08:48:09,293 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-17 08:48:09,293 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:48:08" (2/3) ... [2024-11-17 08:48:09,293 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1b29131 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.11 08:48:09, skipping insertion in model container [2024-11-17 08:48:09,293 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-17 08:48:09,293 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 08:48:09" (3/3) ... [2024-11-17 08:48:09,294 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product52.cil.c [2024-11-17 08:48:09,341 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-17 08:48:09,341 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-17 08:48:09,341 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-17 08:48:09,341 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-17 08:48:09,341 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-17 08:48:09,342 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-17 08:48:09,342 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-17 08:48:09,342 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-17 08:48:09,347 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 172 states, 171 states have (on average 1.3625730994152048) internal successors, (233), 171 states have internal predecessors, (233), 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) [2024-11-17 08:48:09,371 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 112 [2024-11-17 08:48:09,372 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:48:09,372 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:48:09,379 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:48:09,380 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:48:09,380 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-17 08:48:09,381 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 172 states, 171 states have (on average 1.3625730994152048) internal successors, (233), 171 states have internal predecessors, (233), 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) [2024-11-17 08:48:09,392 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 112 [2024-11-17 08:48:09,392 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:48:09,393 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:48:09,396 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:48:09,396 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:48:09,403 INFO L745 eck$LassoCheckResult]: Stem: 147#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 37#ULTIMATE.init_returnLabel#1true assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret49#1, main_~retValue_acc~11#1, main_~tmp~8#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 153#L946true assume true;assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 170#L939true assume true;assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1; 158#L954true assume true;main_#t~ret49#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret49#1;havoc main_#t~ret49#1; 20#L910true assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 34#L884true assume true;assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet22#1, test_#t~nondet23#1, test_#t~nondet24#1, test_#t~nondet25#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 87#L400true [2024-11-17 08:48:09,405 INFO L747 eck$LassoCheckResult]: Loop: 87#L400true assume true; 76#L400-1true assume !false; 17#test_while_0_continue#1true assume true; 106#L402true assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet22#1;test_~tmp~4#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 124#L410true assume !(0 != test_~tmp~4#1); 22#L418true havoc test_#t~nondet23#1;test_~tmp___0~2#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; 50#L420true assume !(0 != test_~tmp___0~2#1); 136#L428true havoc test_#t~nondet24#1;test_~tmp___2~0#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1; 24#L430true assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet25#1;test_~tmp___1~0#1 := test_#t~nondet25#1;havoc test_#t~nondet25#1; 116#L438true assume !(0 != test_~tmp___1~0#1); 38#L447true assume { :begin_inline_timeShift } true; 157#L176-2true assume !(0 != ~pumpRunning~0); 51#L183-2true assume !(0 != ~systemActive~0); 83#L191-2true assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret51#1, __utac_acc__Specification4_spec__1_#t~ret52#1, __utac_acc__Specification4_spec__1_~tmp~9#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification4_spec__1_~tmp~9#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 35#L133-2true assume true;__utac_acc__Specification4_spec__1_#t~ret51#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~9#1 := __utac_acc__Specification4_spec__1_#t~ret51#1;havoc __utac_acc__Specification4_spec__1_#t~ret51#1; 149#L976-2true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~9#1); 79#L990-2true assume true;havoc __utac_acc__Specification4_spec__1_#t~ret51#1, __utac_acc__Specification4_spec__1_#t~ret52#1, __utac_acc__Specification4_spec__1_~tmp~9#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :end_inline___utac_acc__Specification4_spec__1 } true; 60#L193-2true assume true;assume { :end_inline_timeShift } true; 87#L400true [2024-11-17 08:48:09,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:48:09,412 INFO L85 PathProgramCache]: Analyzing trace with hash 1104458221, now seen corresponding path program 1 times [2024-11-17 08:48:09,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:48:09,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309556738] [2024-11-17 08:48:09,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:48:09,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:48:09,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:48:09,528 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:48:09,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:48:09,578 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:48:09,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:48:09,582 INFO L85 PathProgramCache]: Analyzing trace with hash -1795822587, now seen corresponding path program 1 times [2024-11-17 08:48:09,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:48:09,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901277036] [2024-11-17 08:48:09,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:48:09,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:48:09,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:48:09,594 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:48:09,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:48:09,603 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:48:09,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:48:09,607 INFO L85 PathProgramCache]: Analyzing trace with hash -260932879, now seen corresponding path program 1 times [2024-11-17 08:48:09,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:48:09,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194256004] [2024-11-17 08:48:09,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:48:09,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:48:09,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:48:09,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:48:09,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 08:48:09,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194256004] [2024-11-17 08:48:09,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194256004] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 08:48:09,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 08:48:09,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 08:48:09,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174913344] [2024-11-17 08:48:09,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 08:48:09,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 08:48:09,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 08:48:09,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-17 08:48:09,991 INFO L87 Difference]: Start difference. First operand has 172 states, 171 states have (on average 1.3625730994152048) internal successors, (233), 171 states have internal predecessors, (233), 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 4.166666666666667) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:48:10,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 08:48:10,148 INFO L93 Difference]: Finished difference Result 390 states and 510 transitions. [2024-11-17 08:48:10,153 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 390 states and 510 transitions. [2024-11-17 08:48:10,160 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 254 [2024-11-17 08:48:10,172 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 390 states to 357 states and 477 transitions. [2024-11-17 08:48:10,175 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 357 [2024-11-17 08:48:10,176 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 357 [2024-11-17 08:48:10,177 INFO L73 IsDeterministic]: Start isDeterministic. Operand 357 states and 477 transitions. [2024-11-17 08:48:10,179 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-17 08:48:10,179 INFO L218 hiAutomatonCegarLoop]: Abstraction has 357 states and 477 transitions. [2024-11-17 08:48:10,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states and 477 transitions. [2024-11-17 08:48:10,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 208. [2024-11-17 08:48:10,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 208 states have (on average 1.3317307692307692) internal successors, (277), 207 states have internal predecessors, (277), 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) [2024-11-17 08:48:10,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 277 transitions. [2024-11-17 08:48:10,224 INFO L240 hiAutomatonCegarLoop]: Abstraction has 208 states and 277 transitions. [2024-11-17 08:48:10,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 08:48:10,229 INFO L425 stractBuchiCegarLoop]: Abstraction has 208 states and 277 transitions. [2024-11-17 08:48:10,231 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-17 08:48:10,231 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 208 states and 277 transitions. [2024-11-17 08:48:10,233 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 147 [2024-11-17 08:48:10,237 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:48:10,237 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:48:10,238 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:48:10,238 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] [2024-11-17 08:48:10,238 INFO L745 eck$LassoCheckResult]: Stem: 730#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 635#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret49#1, main_~retValue_acc~11#1, main_~tmp~8#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 636#L946 assume true;assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 731#L939 assume true;assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1; 734#L954 assume true;main_#t~ret49#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret49#1;havoc main_#t~ret49#1; 611#L910 assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 612#L884 assume true;assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet22#1, test_#t~nondet23#1, test_#t~nondet24#1, test_#t~nondet25#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 630#L400 [2024-11-17 08:48:10,238 INFO L747 eck$LassoCheckResult]: Loop: 630#L400 assume true; 684#L400-1 assume !false; 604#test_while_0_continue#1 assume true; 605#L402 assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet22#1;test_~tmp~4#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 711#L410 assume !(0 != test_~tmp~4#1); 613#L418 havoc test_#t~nondet23#1;test_~tmp___0~2#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; 614#L420 assume !(0 != test_~tmp___0~2#1); 654#L428 havoc test_#t~nondet24#1;test_~tmp___2~0#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1; 615#L430 assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet25#1;test_~tmp___1~0#1 := test_#t~nondet25#1;havoc test_#t~nondet25#1; 616#L438 assume !(0 != test_~tmp___1~0#1); 608#L447 assume { :begin_inline_timeShift } true; 637#L176-2 assume !(0 != ~pumpRunning~0); 658#L183-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret10#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 583#L234-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret9#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; 584#L208-5 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 695#L200-11 assume true;assume { :end_inline_processEnvironment__wrappee__base } true; 642#L226-5 assume true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret9#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 722#L252-2 assume true;havoc processEnvironment_#t~ret10#1, processEnvironment_~tmp~1#1;assume { :end_inline_processEnvironment } true; 690#L191-2 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret51#1, __utac_acc__Specification4_spec__1_#t~ret52#1, __utac_acc__Specification4_spec__1_~tmp~9#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification4_spec__1_~tmp~9#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 631#L133-2 assume true;__utac_acc__Specification4_spec__1_#t~ret51#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~9#1 := __utac_acc__Specification4_spec__1_#t~ret51#1;havoc __utac_acc__Specification4_spec__1_#t~ret51#1; 632#L976-2 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~9#1); 687#L990-2 assume true;havoc __utac_acc__Specification4_spec__1_#t~ret51#1, __utac_acc__Specification4_spec__1_#t~ret52#1, __utac_acc__Specification4_spec__1_~tmp~9#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :end_inline___utac_acc__Specification4_spec__1 } true; 665#L193-2 assume true;assume { :end_inline_timeShift } true; 630#L400 [2024-11-17 08:48:10,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:48:10,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1104458221, now seen corresponding path program 2 times [2024-11-17 08:48:10,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:48:10,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037548762] [2024-11-17 08:48:10,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:48:10,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:48:10,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:48:10,252 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:48:10,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:48:10,259 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:48:10,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:48:10,260 INFO L85 PathProgramCache]: Analyzing trace with hash -651410034, now seen corresponding path program 1 times [2024-11-17 08:48:10,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:48:10,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75143845] [2024-11-17 08:48:10,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:48:10,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:48:10,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:48:10,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:48:10,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 08:48:10,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75143845] [2024-11-17 08:48:10,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75143845] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 08:48:10,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 08:48:10,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 08:48:10,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269570170] [2024-11-17 08:48:10,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 08:48:10,285 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-17 08:48:10,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 08:48:10,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 08:48:10,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 08:48:10,287 INFO L87 Difference]: Start difference. First operand 208 states and 277 transitions. cyclomatic complexity: 72 Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:48:10,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 08:48:10,456 INFO L93 Difference]: Finished difference Result 260 states and 330 transitions. [2024-11-17 08:48:10,457 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 260 states and 330 transitions. [2024-11-17 08:48:10,459 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 188 [2024-11-17 08:48:10,462 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 260 states to 260 states and 330 transitions. [2024-11-17 08:48:10,465 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 260 [2024-11-17 08:48:10,466 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 260 [2024-11-17 08:48:10,466 INFO L73 IsDeterministic]: Start isDeterministic. Operand 260 states and 330 transitions. [2024-11-17 08:48:10,467 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-17 08:48:10,469 INFO L218 hiAutomatonCegarLoop]: Abstraction has 260 states and 330 transitions. [2024-11-17 08:48:10,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states and 330 transitions. [2024-11-17 08:48:10,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 260. [2024-11-17 08:48:10,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 260 states have (on average 1.2692307692307692) internal successors, (330), 259 states have internal predecessors, (330), 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) [2024-11-17 08:48:10,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 330 transitions. [2024-11-17 08:48:10,488 INFO L240 hiAutomatonCegarLoop]: Abstraction has 260 states and 330 transitions. [2024-11-17 08:48:10,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 08:48:10,489 INFO L425 stractBuchiCegarLoop]: Abstraction has 260 states and 330 transitions. [2024-11-17 08:48:10,489 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-17 08:48:10,489 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 260 states and 330 transitions. [2024-11-17 08:48:10,492 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 188 [2024-11-17 08:48:10,493 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:48:10,493 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:48:10,494 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:48:10,495 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] [2024-11-17 08:48:10,495 INFO L745 eck$LassoCheckResult]: Stem: 1218#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 1108#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret49#1, main_~retValue_acc~11#1, main_~tmp~8#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 1109#L946 assume true;assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1219#L939 assume true;assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1; 1223#L954 assume true;main_#t~ret49#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret49#1;havoc main_#t~ret49#1; 1082#L910 assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 1083#L884 assume true;assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet22#1, test_#t~nondet23#1, test_#t~nondet24#1, test_#t~nondet25#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1103#L400 [2024-11-17 08:48:10,496 INFO L747 eck$LassoCheckResult]: Loop: 1103#L400 assume true; 1289#L400-1 assume !false; 1288#test_while_0_continue#1 assume true; 1190#L402 assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet22#1;test_~tmp~4#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 1192#L410 assume !(0 != test_~tmp~4#1); 1204#L418 havoc test_#t~nondet23#1;test_~tmp___0~2#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; 1132#L420 assume !(0 != test_~tmp___0~2#1); 1127#L428 havoc test_#t~nondet24#1;test_~tmp___2~0#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1; 1088#L430 assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet25#1;test_~tmp___1~0#1 := test_#t~nondet25#1;havoc test_#t~nondet25#1; 1089#L438 assume !(0 != test_~tmp___1~0#1); 1081#L447 assume { :begin_inline_timeShift } true; 1110#L176-2 assume !(0 != ~pumpRunning~0); 1134#L183-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret10#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 1056#L234-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret9#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; 1057#L208-5 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret20#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~6#1;havoc isHighWaterLevel_~tmp~2#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; 1170#L141-5 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 1212#L146-5 assume true;isHighWaterLevel_#t~ret20#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~2#1 := isHighWaterLevel_#t~ret20#1;havoc isHighWaterLevel_#t~ret20#1; 1145#L336-5 assume 0 != isHighWaterLevel_~tmp~2#1;isHighWaterLevel_~tmp___0~0#1 := 0; 1111#L341-5 isHighWaterLevel_~retValue_acc~6#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1; 1112#L342-5 assume true;processEnvironment__wrappee__highWaterSensor_#t~ret9#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret20#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret9#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret9#1; 1216#L212-5 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1217#L200-10 assume true;assume { :end_inline_processEnvironment__wrappee__base } true; 1214#L226-5 assume true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret9#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1207#L252-2 assume true;havoc processEnvironment_#t~ret10#1, processEnvironment_~tmp~1#1;assume { :end_inline_processEnvironment } true; 1165#L191-2 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret51#1, __utac_acc__Specification4_spec__1_#t~ret52#1, __utac_acc__Specification4_spec__1_~tmp~9#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification4_spec__1_~tmp~9#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 1104#L133-2 assume true;__utac_acc__Specification4_spec__1_#t~ret51#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~9#1 := __utac_acc__Specification4_spec__1_#t~ret51#1;havoc __utac_acc__Specification4_spec__1_#t~ret51#1; 1105#L976-2 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~9#1); 1163#L990-2 assume true;havoc __utac_acc__Specification4_spec__1_#t~ret51#1, __utac_acc__Specification4_spec__1_#t~ret52#1, __utac_acc__Specification4_spec__1_~tmp~9#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :end_inline___utac_acc__Specification4_spec__1 } true; 1142#L193-2 assume true;assume { :end_inline_timeShift } true; 1103#L400 [2024-11-17 08:48:10,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:48:10,496 INFO L85 PathProgramCache]: Analyzing trace with hash 1104458221, now seen corresponding path program 3 times [2024-11-17 08:48:10,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:48:10,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321983247] [2024-11-17 08:48:10,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:48:10,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:48:10,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:48:10,509 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:48:10,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:48:10,519 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:48:10,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:48:10,519 INFO L85 PathProgramCache]: Analyzing trace with hash 201449879, now seen corresponding path program 1 times [2024-11-17 08:48:10,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:48:10,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479412968] [2024-11-17 08:48:10,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:48:10,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:48:10,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:48:10,532 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:48:10,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:48:10,545 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:48:10,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:48:10,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1937438933, now seen corresponding path program 1 times [2024-11-17 08:48:10,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:48:10,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174874167] [2024-11-17 08:48:10,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:48:10,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:48:10,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:48:10,566 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:48:10,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:48:10,584 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:48:11,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:48:11,441 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:48:11,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:48:11,501 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 17.11 08:48:11 BoogieIcfgContainer [2024-11-17 08:48:11,505 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-17 08:48:11,505 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-17 08:48:11,505 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-17 08:48:11,506 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-17 08:48:11,506 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 08:48:09" (3/4) ... [2024-11-17 08:48:11,508 INFO L140 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-17 08:48:11,562 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-17 08:48:11,562 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-17 08:48:11,563 INFO L158 Benchmark]: Toolchain (without parser) took 3569.16ms. Allocated memory was 142.6MB in the beginning and 197.1MB in the end (delta: 54.5MB). Free memory was 87.1MB in the beginning and 128.1MB in the end (delta: -41.0MB). Peak memory consumption was 16.4MB. Max. memory is 16.1GB. [2024-11-17 08:48:11,564 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 142.6MB. Free memory is still 116.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 08:48:11,564 INFO L158 Benchmark]: CACSL2BoogieTranslator took 447.22ms. Allocated memory is still 142.6MB. Free memory was 86.9MB in the beginning and 65.3MB in the end (delta: 21.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-17 08:48:11,564 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.87ms. Allocated memory is still 142.6MB. Free memory was 65.3MB in the beginning and 62.0MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 08:48:11,565 INFO L158 Benchmark]: Boogie Preprocessor took 91.01ms. Allocated memory was 142.6MB in the beginning and 197.1MB in the end (delta: 54.5MB). Free memory was 62.0MB in the beginning and 166.4MB in the end (delta: -104.3MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. [2024-11-17 08:48:11,565 INFO L158 Benchmark]: IcfgBuilder took 681.02ms. Allocated memory is still 197.1MB. Free memory was 166.4MB in the beginning and 133.9MB in the end (delta: 32.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2024-11-17 08:48:11,566 INFO L158 Benchmark]: BuchiAutomizer took 2220.61ms. Allocated memory is still 197.1MB. Free memory was 133.9MB in the beginning and 130.2MB in the end (delta: 3.7MB). Peak memory consumption was 4.7MB. Max. memory is 16.1GB. [2024-11-17 08:48:11,566 INFO L158 Benchmark]: Witness Printer took 57.23ms. Allocated memory is still 197.1MB. Free memory was 130.2MB in the beginning and 128.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 08:48:11,569 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 142.6MB. Free memory is still 116.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 447.22ms. Allocated memory is still 142.6MB. Free memory was 86.9MB in the beginning and 65.3MB in the end (delta: 21.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.87ms. Allocated memory is still 142.6MB. Free memory was 65.3MB in the beginning and 62.0MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 91.01ms. Allocated memory was 142.6MB in the beginning and 197.1MB in the end (delta: 54.5MB). Free memory was 62.0MB in the beginning and 166.4MB in the end (delta: -104.3MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. * IcfgBuilder took 681.02ms. Allocated memory is still 197.1MB. Free memory was 166.4MB in the beginning and 133.9MB in the end (delta: 32.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 2220.61ms. Allocated memory is still 197.1MB. Free memory was 133.9MB in the beginning and 130.2MB in the end (delta: 3.7MB). Peak memory consumption was 4.7MB. Max. memory is 16.1GB. * Witness Printer took 57.23ms. Allocated memory is still 197.1MB. Free memory was 130.2MB in the beginning and 128.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [49] - GenericResultAtLocation [Line: 160]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [160] - GenericResultAtLocation [Line: 388]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [388] - GenericResultAtLocation [Line: 458]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [458] - GenericResultAtLocation [Line: 824]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [824] - GenericResultAtLocation [Line: 923]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [923] - GenericResultAtLocation [Line: 958]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [958] - GenericResultAtLocation [Line: 967]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [967] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 260 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.1s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.5s. Construction of modules took 0.1s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 149 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, 542 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 542 mSDsluCounter, 1308 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 890 mSDsCounter, 34 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 73 IncrementalHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 34 mSolverCounterUnsat, 418 mSDtfsCounter, 73 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 400]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L58] int waterLevel = 1; [L59] int methaneLevelCritical = 0; [L168] int pumpRunning = 0; [L169] int systemActive = 1; [L628] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L825] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L901] int retValue_acc ; [L902] int tmp ; [L906] FCALL select_helpers() [L907] FCALL select_features() [L908] CALL, EXPR valid_product() [L950] int retValue_acc ; [L953] retValue_acc = 1 [L954] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L908] RET, EXPR valid_product() [L908] tmp = valid_product() [L910] COND TRUE \read(tmp) [L912] FCALL setup() [L913] CALL runTest() [L892] CALL test() [L391] int splverifierCounter ; [L392] int tmp ; [L393] int tmp___0 ; [L394] int tmp___1 ; [L395] int tmp___2 ; [L398] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L400] COND TRUE 1 [L402] COND TRUE splverifierCounter < 4 [L408] tmp = __VERIFIER_nondet_int() [L410] COND FALSE !(\read(tmp)) [L418] tmp___0 = __VERIFIER_nondet_int() [L420] COND FALSE !(\read(tmp___0)) [L428] tmp___2 = __VERIFIER_nondet_int() [L430] COND FALSE !(\read(tmp___2)) [L436] tmp___1 = __VERIFIER_nondet_int() [L438] COND FALSE !(\read(tmp___1)) [L447] CALL timeShift() [L176] COND FALSE !(\read(pumpRunning)) [L183] COND TRUE \read(systemActive) [L185] CALL processEnvironment() [L231] int tmp ; [L234] COND FALSE !(\read(pumpRunning)) [L249] CALL processEnvironment__wrappee__highWaterSensor() [L205] int tmp ; [L208] COND TRUE ! pumpRunning [L210] CALL, EXPR isHighWaterLevel() [L328] int retValue_acc ; [L329] int tmp ; [L330] int tmp___0 ; [L334] CALL, EXPR isHighWaterSensorDry() [L138] int retValue_acc ; [L141] COND TRUE waterLevel < 2 [L142] retValue_acc = 1 [L143] return (retValue_acc); [L334] RET, EXPR isHighWaterSensorDry() [L334] tmp = isHighWaterSensorDry() [L336] COND TRUE \read(tmp) [L337] tmp___0 = 0 [L341] retValue_acc = tmp___0 [L342] return (retValue_acc); [L210] RET, EXPR isHighWaterLevel() [L210] tmp = isHighWaterLevel() [L212] COND FALSE !(\read(tmp)) [L218] FCALL processEnvironment__wrappee__base() [L249] RET processEnvironment__wrappee__highWaterSensor() [L185] RET processEnvironment() [L191] CALL __utac_acc__Specification4_spec__1() [L969] int tmp ; [L970] int tmp___0 ; [L974] CALL, EXPR getWaterLevel() [L129] int retValue_acc ; [L132] retValue_acc = waterLevel [L133] return (retValue_acc); [L974] RET, EXPR getWaterLevel() [L974] tmp = getWaterLevel() [L976] COND FALSE !(tmp == 0) [L191] RET __utac_acc__Specification4_spec__1() [L447] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 400]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L58] int waterLevel = 1; [L59] int methaneLevelCritical = 0; [L168] int pumpRunning = 0; [L169] int systemActive = 1; [L628] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L825] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L901] int retValue_acc ; [L902] int tmp ; [L906] FCALL select_helpers() [L907] FCALL select_features() [L908] CALL, EXPR valid_product() [L950] int retValue_acc ; [L953] retValue_acc = 1 [L954] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L908] RET, EXPR valid_product() [L908] tmp = valid_product() [L910] COND TRUE \read(tmp) [L912] FCALL setup() [L913] CALL runTest() [L892] CALL test() [L391] int splverifierCounter ; [L392] int tmp ; [L393] int tmp___0 ; [L394] int tmp___1 ; [L395] int tmp___2 ; [L398] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L400] COND TRUE 1 [L402] COND TRUE splverifierCounter < 4 [L408] tmp = __VERIFIER_nondet_int() [L410] COND FALSE !(\read(tmp)) [L418] tmp___0 = __VERIFIER_nondet_int() [L420] COND FALSE !(\read(tmp___0)) [L428] tmp___2 = __VERIFIER_nondet_int() [L430] COND FALSE !(\read(tmp___2)) [L436] tmp___1 = __VERIFIER_nondet_int() [L438] COND FALSE !(\read(tmp___1)) [L447] CALL timeShift() [L176] COND FALSE !(\read(pumpRunning)) [L183] COND TRUE \read(systemActive) [L185] CALL processEnvironment() [L231] int tmp ; [L234] COND FALSE !(\read(pumpRunning)) [L249] CALL processEnvironment__wrappee__highWaterSensor() [L205] int tmp ; [L208] COND TRUE ! pumpRunning [L210] CALL, EXPR isHighWaterLevel() [L328] int retValue_acc ; [L329] int tmp ; [L330] int tmp___0 ; [L334] CALL, EXPR isHighWaterSensorDry() [L138] int retValue_acc ; [L141] COND TRUE waterLevel < 2 [L142] retValue_acc = 1 [L143] return (retValue_acc); [L334] RET, EXPR isHighWaterSensorDry() [L334] tmp = isHighWaterSensorDry() [L336] COND TRUE \read(tmp) [L337] tmp___0 = 0 [L341] retValue_acc = tmp___0 [L342] return (retValue_acc); [L210] RET, EXPR isHighWaterLevel() [L210] tmp = isHighWaterLevel() [L212] COND FALSE !(\read(tmp)) [L218] FCALL processEnvironment__wrappee__base() [L249] RET processEnvironment__wrappee__highWaterSensor() [L185] RET processEnvironment() [L191] CALL __utac_acc__Specification4_spec__1() [L969] int tmp ; [L970] int tmp___0 ; [L974] CALL, EXPR getWaterLevel() [L129] int retValue_acc ; [L132] retValue_acc = waterLevel [L133] return (retValue_acc); [L974] RET, EXPR getWaterLevel() [L974] tmp = getWaterLevel() [L976] COND FALSE !(tmp == 0) [L191] RET __utac_acc__Specification4_spec__1() [L447] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-17 08:48:11,594 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)