./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product37.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 023d838f 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_product37.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 3ab30b3db91b0e47e6f9b2ed9ba465facc49148e5cdc1cad78e4808ba0c7de84 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 23:16:11,796 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 23:16:11,897 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-10 23:16:11,901 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 23:16:11,903 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 23:16:11,903 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2024-11-10 23:16:11,929 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 23:16:11,930 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 23:16:11,930 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 23:16:11,931 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 23:16:11,932 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 23:16:11,933 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 23:16:11,933 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 23:16:11,934 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 23:16:11,934 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-10 23:16:11,935 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-10 23:16:11,935 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-10 23:16:11,935 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-10 23:16:11,936 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-10 23:16:11,936 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-10 23:16:11,936 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 23:16:11,939 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-10 23:16:11,940 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 23:16:11,940 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 23:16:11,940 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 23:16:11,940 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 23:16:11,941 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-10 23:16:11,941 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-10 23:16:11,941 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-10 23:16:11,941 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 23:16:11,942 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 23:16:11,942 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 23:16:11,942 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 23:16:11,942 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-10 23:16:11,943 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 23:16:11,943 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 23:16:11,943 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 23:16:11,944 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 23:16:11,944 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 23:16:11,945 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-10 23:16:11,945 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3ab30b3db91b0e47e6f9b2ed9ba465facc49148e5cdc1cad78e4808ba0c7de84 [2024-11-10 23:16:12,198 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 23:16:12,223 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 23:16:12,227 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 23:16:12,228 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 23:16:12,229 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 23:16:12,230 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product37.cil.c [2024-11-10 23:16:13,688 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 23:16:13,913 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 23:16:13,914 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product37.cil.c [2024-11-10 23:16:13,929 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/847315482/e5aec32f51d84ef9a1737fb4e597ac02/FLAGc125c087d [2024-11-10 23:16:13,946 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/847315482/e5aec32f51d84ef9a1737fb4e597ac02 [2024-11-10 23:16:13,948 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 23:16:13,950 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 23:16:13,951 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 23:16:13,951 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 23:16:13,956 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 23:16:13,957 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:16:13" (1/1) ... [2024-11-10 23:16:13,958 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b6fa11f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:16:13, skipping insertion in model container [2024-11-10 23:16:13,958 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:16:13" (1/1) ... [2024-11-10 23:16:13,998 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 23:16:14,340 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 23:16:14,354 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 23:16:14,363 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [49] [2024-11-10 23:16:14,365 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [150] [2024-11-10 23:16:14,366 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [201] [2024-11-10 23:16:14,366 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [304] [2024-11-10 23:16:14,366 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [313] [2024-11-10 23:16:14,367 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [496] [2024-11-10 23:16:14,367 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [561] [2024-11-10 23:16:14,367 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [596] [2024-11-10 23:16:14,497 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 23:16:14,550 INFO L204 MainTranslator]: Completed translation [2024-11-10 23:16:14,554 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:16:14 WrapperNode [2024-11-10 23:16:14,554 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 23:16:14,555 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 23:16:14,555 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 23:16:14,555 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 23:16:14,563 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:16:14" (1/1) ... [2024-11-10 23:16:14,577 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:16:14" (1/1) ... [2024-11-10 23:16:14,617 INFO L138 Inliner]: procedures = 55, calls = 101, calls flagged for inlining = 54, calls inlined = 87, statements flattened = 569 [2024-11-10 23:16:14,618 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 23:16:14,618 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 23:16:14,618 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 23:16:14,619 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 23:16:14,627 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:16:14" (1/1) ... [2024-11-10 23:16:14,627 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:16:14" (1/1) ... [2024-11-10 23:16:14,630 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:16:14" (1/1) ... [2024-11-10 23:16:14,647 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]. [2024-11-10 23:16:14,648 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:16:14" (1/1) ... [2024-11-10 23:16:14,648 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:16:14" (1/1) ... [2024-11-10 23:16:14,661 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:16:14" (1/1) ... [2024-11-10 23:16:14,662 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:16:14" (1/1) ... [2024-11-10 23:16:14,664 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:16:14" (1/1) ... [2024-11-10 23:16:14,665 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:16:14" (1/1) ... [2024-11-10 23:16:14,668 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 23:16:14,669 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 23:16:14,669 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 23:16:14,670 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 23:16:14,670 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:16:14" (1/1) ... [2024-11-10 23:16:14,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:16:14,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:16:14,721 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) [2024-11-10 23:16:14,727 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 [2024-11-10 23:16:14,771 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 23:16:14,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 23:16:14,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 23:16:14,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 23:16:14,865 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 23:16:14,867 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 23:16:15,375 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L101-5: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; [2024-11-10 23:16:15,375 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L301-1: main_#res#1 := main_~retValue_acc~3#1; [2024-11-10 23:16:15,376 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L438-1: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1; [2024-11-10 23:16:15,376 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L438-3: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1; [2024-11-10 23:16:15,376 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L438-5: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1; [2024-11-10 23:16:15,376 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L438-7: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1; [2024-11-10 23:16:15,376 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L438-9: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1; [2024-11-10 23:16:15,376 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L438-11: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1; [2024-11-10 23:16:15,376 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L493-1: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1; [2024-11-10 23:16:15,376 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L493-3: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1; [2024-11-10 23:16:15,377 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L493-5: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1; [2024-11-10 23:16:15,377 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L493-7: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1; [2024-11-10 23:16:15,377 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L493-9: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1; [2024-11-10 23:16:15,377 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L493-11: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1; [2024-11-10 23:16:15,377 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L147-1: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; [2024-11-10 23:16:15,377 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L147-3: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; [2024-11-10 23:16:15,377 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L593-1: valid_product_#res#1 := valid_product_~retValue_acc~8#1; [2024-11-10 23:16:15,377 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L147-5: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; [2024-11-10 23:16:15,377 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L147-7: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; [2024-11-10 23:16:15,377 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L147-9: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; [2024-11-10 23:16:15,378 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L147-11: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; [2024-11-10 23:16:15,378 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L429-1: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~4#1; [2024-11-10 23:16:15,378 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L429-3: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~4#1; [2024-11-10 23:16:15,378 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L429-5: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~4#1; [2024-11-10 23:16:15,378 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L133-1: getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; [2024-11-10 23:16:15,378 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L133-3: getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; [2024-11-10 23:16:15,381 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L133-5: getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; [2024-11-10 23:16:15,381 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L101-1: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; [2024-11-10 23:16:15,382 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L101-3: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; [2024-11-10 23:16:15,417 INFO L? ?]: Removed 127 outVars from TransFormulas that were not future-live. [2024-11-10 23:16:15,418 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 23:16:15,439 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 23:16:15,439 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 23:16:15,439 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 11:16:15 BoogieIcfgContainer [2024-11-10 23:16:15,440 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 23:16:15,440 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-10 23:16:15,441 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-10 23:16:15,443 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-10 23:16:15,444 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-10 23:16:15,444 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 10.11 11:16:13" (1/3) ... [2024-11-10 23:16:15,445 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6c68a3cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 11:16:15, skipping insertion in model container [2024-11-10 23:16:15,445 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-10 23:16:15,445 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:16:14" (2/3) ... [2024-11-10 23:16:15,446 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6c68a3cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 11:16:15, skipping insertion in model container [2024-11-10 23:16:15,446 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-10 23:16:15,446 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 11:16:15" (3/3) ... [2024-11-10 23:16:15,447 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product37.cil.c [2024-11-10 23:16:15,505 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-10 23:16:15,506 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-10 23:16:15,506 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-10 23:16:15,506 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-10 23:16:15,506 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-10 23:16:15,506 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-10 23:16:15,506 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-10 23:16:15,506 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-10 23:16:15,512 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 169 states, 168 states have (on average 1.3630952380952381) internal successors, (229), 168 states have internal predecessors, (229), 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) [2024-11-10 23:16:15,540 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 107 [2024-11-10 23:16:15,540 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-10 23:16:15,541 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-10 23:16:15,546 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 23:16:15,547 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 23:16:15,547 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-10 23:16:15,548 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 169 states, 168 states have (on average 1.3630952380952381) internal successors, (229), 168 states have internal predecessors, (229), 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) [2024-11-10 23:16:15,556 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 107 [2024-11-10 23:16:15,556 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-10 23:16:15,556 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-10 23:16:15,557 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 23:16:15,557 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 23:16:15,561 INFO L745 eck$LassoCheckResult]: Stem: 154#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;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 42#ULTIMATE.init_returnLabel#1true assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret12#1, main_~retValue_acc~3#1, main_~tmp~1#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; 73#L584true assume true;assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 91#L577true assume true;assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 32#L592true assume true;main_#t~ret12#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret12#1;havoc main_#t~ret12#1; 107#L291true assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; 163#L263true assume true;assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 102#L159true assume true;assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet25#1, test_#t~nondet26#1, test_#t~nondet27#1, test_#t~nondet28#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 38#L507true [2024-11-10 23:16:15,562 INFO L747 eck$LassoCheckResult]: Loop: 38#L507true assume true; 36#L507-1true assume !false;assume true; 62#L509true assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet25#1;test_~tmp~5#1 := test_#t~nondet25#1;havoc test_#t~nondet25#1; 114#L517true assume !(0 != test_~tmp~5#1); 3#L525true havoc test_#t~nondet26#1;test_~tmp___0~2#1 := test_#t~nondet26#1;havoc test_#t~nondet26#1; 126#L527true assume !(0 != test_~tmp___0~2#1); 118#L535true havoc test_#t~nondet27#1;test_~tmp___2~0#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 115#L537true assume 0 != test_~tmp___2~0#1; 170#L550true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret9#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;havoc isPumpRunning_~retValue_acc~5#1;isPumpRunning_~retValue_acc~5#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1; 167#L437-5true assume true;__utac_acc__Specification5_spec__2_#t~ret9#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret9#1;havoc __utac_acc__Specification5_spec__2_#t~ret9#1; 146#L169-2true assume true;havoc __utac_acc__Specification5_spec__2_#t~ret9#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true; 27#L326-2true assume !(0 != ~pumpRunning~0); 97#L333-2true assume !(0 != ~systemActive~0); 129#L341-2true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret10#1, __utac_acc__Specification5_spec__3_#t~ret11#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~0#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#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; 112#L132-2true assume true;__utac_acc__Specification5_spec__3_#t~ret10#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0#1 := __utac_acc__Specification5_spec__3_#t~ret10#1;havoc __utac_acc__Specification5_spec__3_#t~ret10#1; 22#L180-2true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0#1); 105#L198-2true assume true;havoc __utac_acc__Specification5_spec__3_#t~ret10#1, __utac_acc__Specification5_spec__3_#t~ret11#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true; 77#L343-2true assume true;assume { :end_inline_timeShift } true; 38#L507true [2024-11-10 23:16:15,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 23:16:15,567 INFO L85 PathProgramCache]: Analyzing trace with hash 707637786, now seen corresponding path program 1 times [2024-11-10 23:16:15,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 23:16:15,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327235219] [2024-11-10 23:16:15,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 23:16:15,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 23:16:15,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:16:15,686 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 23:16:15,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:16:15,729 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 23:16:15,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 23:16:15,733 INFO L85 PathProgramCache]: Analyzing trace with hash 1214767787, now seen corresponding path program 1 times [2024-11-10 23:16:15,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 23:16:15,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056682850] [2024-11-10 23:16:15,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 23:16:15,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 23:16:15,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:16:15,743 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 23:16:15,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:16:15,751 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 23:16:15,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 23:16:15,753 INFO L85 PathProgramCache]: Analyzing trace with hash -1359961980, now seen corresponding path program 1 times [2024-11-10 23:16:15,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 23:16:15,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783157531] [2024-11-10 23:16:15,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 23:16:15,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 23:16:15,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 23:16:16,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 23:16:16,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 23:16:16,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783157531] [2024-11-10 23:16:16,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783157531] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 23:16:16,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 23:16:16,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 23:16:16,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810121084] [2024-11-10 23:16:16,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 23:16:16,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 23:16:16,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 23:16:16,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-10 23:16:16,171 INFO L87 Difference]: Start difference. First operand has 169 states, 168 states have (on average 1.3630952380952381) internal successors, (229), 168 states have internal predecessors, (229), 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) [2024-11-10 23:16:16,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 23:16:16,260 INFO L93 Difference]: Finished difference Result 163 states and 212 transitions. [2024-11-10 23:16:16,262 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 163 states and 212 transitions. [2024-11-10 23:16:16,272 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 101 [2024-11-10 23:16:16,278 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 163 states to 152 states and 201 transitions. [2024-11-10 23:16:16,279 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 152 [2024-11-10 23:16:16,279 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 152 [2024-11-10 23:16:16,280 INFO L73 IsDeterministic]: Start isDeterministic. Operand 152 states and 201 transitions. [2024-11-10 23:16:16,281 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-10 23:16:16,281 INFO L218 hiAutomatonCegarLoop]: Abstraction has 152 states and 201 transitions. [2024-11-10 23:16:16,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states and 201 transitions. [2024-11-10 23:16:16,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2024-11-10 23:16:16,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 152 states have (on average 1.3223684210526316) internal successors, (201), 151 states have internal predecessors, (201), 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) [2024-11-10 23:16:16,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 201 transitions. [2024-11-10 23:16:16,317 INFO L240 hiAutomatonCegarLoop]: Abstraction has 152 states and 201 transitions. [2024-11-10 23:16:16,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 23:16:16,323 INFO L425 stractBuchiCegarLoop]: Abstraction has 152 states and 201 transitions. [2024-11-10 23:16:16,323 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-10 23:16:16,324 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 152 states and 201 transitions. [2024-11-10 23:16:16,326 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 101 [2024-11-10 23:16:16,326 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-10 23:16:16,326 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-10 23:16:16,327 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 23:16:16,327 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] [2024-11-10 23:16:16,327 INFO L745 eck$LassoCheckResult]: Stem: 499#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;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 416#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret12#1, main_~retValue_acc~3#1, main_~tmp~1#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; 417#L584 assume true;assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 457#L577 assume true;assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 400#L592 assume true;main_#t~ret12#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret12#1;havoc main_#t~ret12#1; 401#L291 assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; 479#L263 assume true;assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 477#L159 assume true;assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet25#1, test_#t~nondet26#1, test_#t~nondet27#1, test_#t~nondet28#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 408#L507 [2024-11-10 23:16:16,328 INFO L747 eck$LassoCheckResult]: Loop: 408#L507 assume true; 406#L507-1 assume !false;assume true; 407#L509 assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet25#1;test_~tmp~5#1 := test_#t~nondet25#1;havoc test_#t~nondet25#1; 445#L517 assume !(0 != test_~tmp~5#1); 353#L525 havoc test_#t~nondet26#1;test_~tmp___0~2#1 := test_#t~nondet26#1;havoc test_#t~nondet26#1; 354#L527 assume !(0 != test_~tmp___0~2#1); 484#L535 havoc test_#t~nondet27#1;test_~tmp___2~0#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 483#L537 assume 0 != test_~tmp___2~0#1; 448#L550 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret9#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;havoc isPumpRunning_~retValue_acc~5#1;isPumpRunning_~retValue_acc~5#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1; 501#L437-5 assume true;__utac_acc__Specification5_spec__2_#t~ret9#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret9#1;havoc __utac_acc__Specification5_spec__2_#t~ret9#1; 496#L169-2 assume true;havoc __utac_acc__Specification5_spec__2_#t~ret9#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true; 390#L326-2 assume !(0 != ~pumpRunning~0); 392#L333-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret14#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 393#L384-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1, processEnvironment__wrappee__highWaterSensor_~tmp~2#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2#1; 394#L358-5 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 357#L350-11 assume true;assume { :end_inline_processEnvironment__wrappee__base } true; 358#L376-5 assume true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1, processEnvironment__wrappee__highWaterSensor_~tmp~2#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 389#L402-2 assume true;havoc processEnvironment_#t~ret14#1, processEnvironment_~tmp~3#1;assume { :end_inline_processEnvironment } true; 471#L341-2 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret10#1, __utac_acc__Specification5_spec__3_#t~ret11#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~0#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#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; 481#L132-2 assume true;__utac_acc__Specification5_spec__3_#t~ret10#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0#1 := __utac_acc__Specification5_spec__3_#t~ret10#1;havoc __utac_acc__Specification5_spec__3_#t~ret10#1; 379#L180-2 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0#1); 381#L198-2 assume true;havoc __utac_acc__Specification5_spec__3_#t~ret10#1, __utac_acc__Specification5_spec__3_#t~ret11#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true; 461#L343-2 assume true;assume { :end_inline_timeShift } true; 408#L507 [2024-11-10 23:16:16,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 23:16:16,328 INFO L85 PathProgramCache]: Analyzing trace with hash 707637786, now seen corresponding path program 2 times [2024-11-10 23:16:16,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 23:16:16,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467714905] [2024-11-10 23:16:16,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 23:16:16,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 23:16:16,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:16:16,340 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 23:16:16,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:16:16,354 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 23:16:16,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 23:16:16,359 INFO L85 PathProgramCache]: Analyzing trace with hash -2051268043, now seen corresponding path program 1 times [2024-11-10 23:16:16,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 23:16:16,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912906826] [2024-11-10 23:16:16,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 23:16:16,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 23:16:16,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 23:16:16,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 23:16:16,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 23:16:16,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912906826] [2024-11-10 23:16:16,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912906826] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 23:16:16,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 23:16:16,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 23:16:16,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664564031] [2024-11-10 23:16:16,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 23:16:16,408 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-10 23:16:16,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 23:16:16,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 23:16:16,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 23:16:16,410 INFO L87 Difference]: Start difference. First operand 152 states and 201 transitions. cyclomatic complexity: 51 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) [2024-11-10 23:16:16,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 23:16:16,522 INFO L93 Difference]: Finished difference Result 215 states and 274 transitions. [2024-11-10 23:16:16,522 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 215 states and 274 transitions. [2024-11-10 23:16:16,524 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 148 [2024-11-10 23:16:16,527 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 215 states to 215 states and 274 transitions. [2024-11-10 23:16:16,527 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 215 [2024-11-10 23:16:16,527 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 215 [2024-11-10 23:16:16,528 INFO L73 IsDeterministic]: Start isDeterministic. Operand 215 states and 274 transitions. [2024-11-10 23:16:16,529 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-10 23:16:16,529 INFO L218 hiAutomatonCegarLoop]: Abstraction has 215 states and 274 transitions. [2024-11-10 23:16:16,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states and 274 transitions. [2024-11-10 23:16:16,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 215. [2024-11-10 23:16:16,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 215 states have (on average 1.2744186046511627) internal successors, (274), 214 states have internal predecessors, (274), 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) [2024-11-10 23:16:16,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 274 transitions. [2024-11-10 23:16:16,544 INFO L240 hiAutomatonCegarLoop]: Abstraction has 215 states and 274 transitions. [2024-11-10 23:16:16,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 23:16:16,545 INFO L425 stractBuchiCegarLoop]: Abstraction has 215 states and 274 transitions. [2024-11-10 23:16:16,545 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-10 23:16:16,545 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 215 states and 274 transitions. [2024-11-10 23:16:16,547 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 148 [2024-11-10 23:16:16,547 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-10 23:16:16,547 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-10 23:16:16,549 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 23:16:16,549 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] [2024-11-10 23:16:16,549 INFO L745 eck$LassoCheckResult]: Stem: 876#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;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 788#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret12#1, main_~retValue_acc~3#1, main_~tmp~1#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; 789#L584 assume true;assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 828#L577 assume true;assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 771#L592 assume true;main_#t~ret12#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret12#1;havoc main_#t~ret12#1; 772#L291 assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; 854#L263 assume true;assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 851#L159 assume true;assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet25#1, test_#t~nondet26#1, test_#t~nondet27#1, test_#t~nondet28#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 781#L507 [2024-11-10 23:16:16,550 INFO L747 eck$LassoCheckResult]: Loop: 781#L507 assume true; 778#L507-1 assume !false;assume true; 779#L509 assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet25#1;test_~tmp~5#1 := test_#t~nondet25#1;havoc test_#t~nondet25#1; 817#L517 assume !(0 != test_~tmp~5#1); 723#L525 havoc test_#t~nondet26#1;test_~tmp___0~2#1 := test_#t~nondet26#1;havoc test_#t~nondet26#1; 724#L527 assume !(0 != test_~tmp___0~2#1); 859#L535 havoc test_#t~nondet27#1;test_~tmp___2~0#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 858#L537 assume 0 != test_~tmp___2~0#1; 820#L550 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret9#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;havoc isPumpRunning_~retValue_acc~5#1;isPumpRunning_~retValue_acc~5#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1; 880#L437-5 assume true;__utac_acc__Specification5_spec__2_#t~ret9#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret9#1;havoc __utac_acc__Specification5_spec__2_#t~ret9#1; 872#L169-2 assume true;havoc __utac_acc__Specification5_spec__2_#t~ret9#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true; 763#L326-2 assume !(0 != ~pumpRunning~0); 764#L333-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret14#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 765#L384-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1, processEnvironment__wrappee__highWaterSensor_~tmp~2#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2#1; 766#L358-5 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret24#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~6#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; 790#L140-5 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 791#L145-5 assume true;isHighWaterLevel_#t~ret24#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret24#1;havoc isHighWaterLevel_#t~ret24#1; 840#L486-5 assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~1#1 := 0; 853#L491-5 isHighWaterLevel_~retValue_acc~6#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1; 747#L492-5 assume true;processEnvironment__wrappee__highWaterSensor_#t~ret13#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret24#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~2#1 := processEnvironment__wrappee__highWaterSensor_#t~ret13#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1; 748#L362-5 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~2#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 808#L350-10 assume true;assume { :end_inline_processEnvironment__wrappee__base } true; 777#L376-5 assume true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1, processEnvironment__wrappee__highWaterSensor_~tmp~2#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 762#L402-2 assume true;havoc processEnvironment_#t~ret14#1, processEnvironment_~tmp~3#1;assume { :end_inline_processEnvironment } true; 844#L341-2 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret10#1, __utac_acc__Specification5_spec__3_#t~ret11#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~0#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#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; 856#L132-2 assume true;__utac_acc__Specification5_spec__3_#t~ret10#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0#1 := __utac_acc__Specification5_spec__3_#t~ret10#1;havoc __utac_acc__Specification5_spec__3_#t~ret10#1; 752#L180-2 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0#1); 754#L198-2 assume true;havoc __utac_acc__Specification5_spec__3_#t~ret10#1, __utac_acc__Specification5_spec__3_#t~ret11#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true; 833#L343-2 assume true;assume { :end_inline_timeShift } true; 781#L507 [2024-11-10 23:16:16,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 23:16:16,551 INFO L85 PathProgramCache]: Analyzing trace with hash 707637786, now seen corresponding path program 3 times [2024-11-10 23:16:16,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 23:16:16,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594546565] [2024-11-10 23:16:16,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 23:16:16,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 23:16:16,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:16:16,567 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 23:16:16,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:16:16,579 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 23:16:16,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 23:16:16,582 INFO L85 PathProgramCache]: Analyzing trace with hash 958767294, now seen corresponding path program 1 times [2024-11-10 23:16:16,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 23:16:16,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374692546] [2024-11-10 23:16:16,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 23:16:16,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 23:16:16,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 23:16:16,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 23:16:16,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 23:16:16,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374692546] [2024-11-10 23:16:16,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374692546] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 23:16:16,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 23:16:16,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 23:16:16,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344011754] [2024-11-10 23:16:16,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 23:16:16,700 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-10 23:16:16,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 23:16:16,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 23:16:16,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 23:16:16,725 INFO L87 Difference]: Start difference. First operand 215 states and 274 transitions. cyclomatic complexity: 61 Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 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) [2024-11-10 23:16:16,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 23:16:16,878 INFO L93 Difference]: Finished difference Result 422 states and 534 transitions. [2024-11-10 23:16:16,878 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 422 states and 534 transitions. [2024-11-10 23:16:16,881 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 296 [2024-11-10 23:16:16,886 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 422 states to 422 states and 534 transitions. [2024-11-10 23:16:16,887 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 422 [2024-11-10 23:16:16,887 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 422 [2024-11-10 23:16:16,887 INFO L73 IsDeterministic]: Start isDeterministic. Operand 422 states and 534 transitions. [2024-11-10 23:16:16,890 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-10 23:16:16,893 INFO L218 hiAutomatonCegarLoop]: Abstraction has 422 states and 534 transitions. [2024-11-10 23:16:16,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states and 534 transitions. [2024-11-10 23:16:16,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 419. [2024-11-10 23:16:16,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 419 states have (on average 1.260143198090692) internal successors, (528), 418 states have internal predecessors, (528), 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) [2024-11-10 23:16:16,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 528 transitions. [2024-11-10 23:16:16,916 INFO L240 hiAutomatonCegarLoop]: Abstraction has 419 states and 528 transitions. [2024-11-10 23:16:16,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 23:16:16,917 INFO L425 stractBuchiCegarLoop]: Abstraction has 419 states and 528 transitions. [2024-11-10 23:16:16,917 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-10 23:16:16,918 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 419 states and 528 transitions. [2024-11-10 23:16:16,920 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 294 [2024-11-10 23:16:16,920 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-10 23:16:16,920 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-10 23:16:16,921 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 23:16:16,921 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] [2024-11-10 23:16:16,921 INFO L745 eck$LassoCheckResult]: Stem: 1542#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;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 1440#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret12#1, main_~retValue_acc~3#1, main_~tmp~1#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; 1441#L584 assume true;assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1485#L577 assume true;assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 1420#L592 assume true;main_#t~ret12#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret12#1;havoc main_#t~ret12#1; 1421#L291 assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; 1514#L263 assume true;assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 1511#L159 assume true;assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet25#1, test_#t~nondet26#1, test_#t~nondet27#1, test_#t~nondet28#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1512#L507 [2024-11-10 23:16:16,921 INFO L747 eck$LassoCheckResult]: Loop: 1512#L507 assume true; 1428#L507-1 assume !false;assume true; 1429#L509 assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet25#1;test_~tmp~5#1 := test_#t~nondet25#1;havoc test_#t~nondet25#1; 1683#L517 assume !(0 != test_~tmp~5#1); 1682#L525 havoc test_#t~nondet26#1;test_~tmp___0~2#1 := test_#t~nondet26#1;havoc test_#t~nondet26#1; 1675#L527 assume !(0 != test_~tmp___0~2#1); 1624#L535 havoc test_#t~nondet27#1;test_~tmp___2~0#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 1612#L537 assume 0 != test_~tmp___2~0#1; 1609#L550 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret9#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;havoc isPumpRunning_~retValue_acc~5#1;isPumpRunning_~retValue_acc~5#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1; 1605#L437-5 assume true;__utac_acc__Specification5_spec__2_#t~ret9#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret9#1;havoc __utac_acc__Specification5_spec__2_#t~ret9#1; 1606#L169-2 assume true;havoc __utac_acc__Specification5_spec__2_#t~ret9#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true; 1601#L326-2 assume !(0 != ~pumpRunning~0); 1599#L333-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret14#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 1598#L384-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1, processEnvironment__wrappee__highWaterSensor_~tmp~2#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2#1; 1597#L358-5 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret24#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~6#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; 1595#L140-5 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 1445#L145-5 assume true;isHighWaterLevel_#t~ret24#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret24#1;havoc isHighWaterLevel_#t~ret24#1; 1541#L486-5 assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~1#1 := 0; 1513#L491-5 isHighWaterLevel_~retValue_acc~6#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1; 1397#L492-5 assume true;processEnvironment__wrappee__highWaterSensor_#t~ret13#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret24#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~2#1 := processEnvironment__wrappee__highWaterSensor_#t~ret13#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1; 1398#L362-5 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~2#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1460#L350-10 assume true;assume { :end_inline_processEnvironment__wrappee__base } true; 1427#L376-5 assume true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1, processEnvironment__wrappee__highWaterSensor_~tmp~2#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1411#L402-2 assume true;havoc processEnvironment_#t~ret14#1, processEnvironment_~tmp~3#1;assume { :end_inline_processEnvironment } true; 1503#L341-2 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret10#1, __utac_acc__Specification5_spec__3_#t~ret11#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~0#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#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; 1516#L132-2 assume true;__utac_acc__Specification5_spec__3_#t~ret10#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0#1 := __utac_acc__Specification5_spec__3_#t~ret10#1;havoc __utac_acc__Specification5_spec__3_#t~ret10#1; 1517#L180-2 assume 2 != __utac_acc__Specification5_spec__3_~tmp~0#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;havoc isPumpRunning_~retValue_acc~5#1;isPumpRunning_~retValue_acc~5#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1; 1600#L437-4 assume true;__utac_acc__Specification5_spec__3_#t~ret11#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~0#1 := __utac_acc__Specification5_spec__3_#t~ret11#1;havoc __utac_acc__Specification5_spec__3_#t~ret11#1; 1566#L184-2 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0#1); 1563#L198-2 assume true;havoc __utac_acc__Specification5_spec__3_#t~ret10#1, __utac_acc__Specification5_spec__3_#t~ret11#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true; 1561#L343-2 assume true;assume { :end_inline_timeShift } true; 1512#L507 [2024-11-10 23:16:16,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 23:16:16,923 INFO L85 PathProgramCache]: Analyzing trace with hash 707637786, now seen corresponding path program 4 times [2024-11-10 23:16:16,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 23:16:16,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633433122] [2024-11-10 23:16:16,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 23:16:16,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 23:16:16,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:16:16,936 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 23:16:16,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:16:16,945 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 23:16:16,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 23:16:16,946 INFO L85 PathProgramCache]: Analyzing trace with hash -2043206596, now seen corresponding path program 1 times [2024-11-10 23:16:16,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 23:16:16,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537159245] [2024-11-10 23:16:16,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 23:16:16,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 23:16:16,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:16:16,961 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 23:16:16,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:16:16,968 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 23:16:16,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 23:16:16,973 INFO L85 PathProgramCache]: Analyzing trace with hash 797536003, now seen corresponding path program 1 times [2024-11-10 23:16:16,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 23:16:16,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190509330] [2024-11-10 23:16:16,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 23:16:16,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 23:16:16,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:16:16,992 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 23:16:17,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:16:17,014 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 23:16:17,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:16:17,913 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 23:16:17,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:16:17,975 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 10.11 11:16:17 BoogieIcfgContainer [2024-11-10 23:16:17,976 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-10 23:16:17,977 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-10 23:16:17,977 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-10 23:16:17,977 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-10 23:16:17,978 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 11:16:15" (3/4) ... [2024-11-10 23:16:17,979 INFO L140 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-10 23:16:18,049 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-10 23:16:18,050 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-10 23:16:18,050 INFO L158 Benchmark]: Toolchain (without parser) took 4100.86ms. Allocated memory is still 203.4MB. Free memory was 133.5MB in the beginning and 125.7MB in the end (delta: 7.9MB). Peak memory consumption was 9.7MB. Max. memory is 16.1GB. [2024-11-10 23:16:18,051 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 117.4MB. Free memory is still 81.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 23:16:18,051 INFO L158 Benchmark]: CACSL2BoogieTranslator took 603.03ms. Allocated memory is still 203.4MB. Free memory was 133.5MB in the beginning and 172.3MB in the end (delta: -38.8MB). Peak memory consumption was 22.9MB. Max. memory is 16.1GB. [2024-11-10 23:16:18,051 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.17ms. Allocated memory is still 203.4MB. Free memory was 172.3MB in the beginning and 169.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 23:16:18,053 INFO L158 Benchmark]: Boogie Preprocessor took 50.19ms. Allocated memory is still 203.4MB. Free memory was 169.1MB in the beginning and 166.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 23:16:18,053 INFO L158 Benchmark]: IcfgBuilder took 770.50ms. Allocated memory is still 203.4MB. Free memory was 166.0MB in the beginning and 133.5MB in the end (delta: 32.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-10 23:16:18,053 INFO L158 Benchmark]: BuchiAutomizer took 2536.12ms. Allocated memory is still 203.4MB. Free memory was 133.5MB in the beginning and 129.8MB in the end (delta: 3.6MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. [2024-11-10 23:16:18,054 INFO L158 Benchmark]: Witness Printer took 72.81ms. Allocated memory is still 203.4MB. Free memory was 128.8MB in the beginning and 125.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-10 23:16:18,055 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 117.4MB. Free memory is still 81.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 603.03ms. Allocated memory is still 203.4MB. Free memory was 133.5MB in the beginning and 172.3MB in the end (delta: -38.8MB). Peak memory consumption was 22.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.17ms. Allocated memory is still 203.4MB. Free memory was 172.3MB in the beginning and 169.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.19ms. Allocated memory is still 203.4MB. Free memory was 169.1MB in the beginning and 166.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 770.50ms. Allocated memory is still 203.4MB. Free memory was 166.0MB in the beginning and 133.5MB in the end (delta: 32.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 2536.12ms. Allocated memory is still 203.4MB. Free memory was 133.5MB in the beginning and 129.8MB in the end (delta: 3.6MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. * Witness Printer took 72.81ms. Allocated memory is still 203.4MB. Free memory was 128.8MB in the beginning and 125.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [49] - GenericResultAtLocation [Line: 150]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [150] - GenericResultAtLocation [Line: 201]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [201] - GenericResultAtLocation [Line: 304]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [304] - GenericResultAtLocation [Line: 313]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [313] - GenericResultAtLocation [Line: 496]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [496] - GenericResultAtLocation [Line: 561]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [561] - GenericResultAtLocation [Line: 596]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [596] * 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 419 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.4s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 1.8s. Construction of modules took 0.1s. 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, 721 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 721 mSDsluCounter, 1696 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1076 mSDsCounter, 39 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 168 IncrementalHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 39 mSolverCounterUnsat, 620 mSDtfsCounter, 168 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: 507]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L57] int waterLevel = 1; [L58] int methaneLevelCritical = 0; [L153] int switchedOnBeforeTS ; [L202] int cleanupTimeShifts = 4; [L316] int pumpRunning = 0; [L317] int systemActive = 1; [L766] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L282] int retValue_acc ; [L283] int tmp ; [L287] FCALL select_helpers() [L288] FCALL select_features() [L289] CALL, EXPR valid_product() [L588] int retValue_acc ; [L591] retValue_acc = 1 [L592] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L289] RET, EXPR valid_product() [L289] tmp = valid_product() [L291] COND TRUE \read(tmp) [L293] FCALL setup() [L294] CALL runTest() [L272] CALL __utac_acc__Specification5_spec__1() [L158] switchedOnBeforeTS = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L272] RET __utac_acc__Specification5_spec__1() [L273] CALL test() [L498] int splverifierCounter ; [L499] int tmp ; [L500] int tmp___0 ; [L501] int tmp___1 ; [L502] int tmp___2 ; [L505] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] Loop: [L507] COND TRUE 1 [L509] COND TRUE splverifierCounter < 4 [L515] tmp = __VERIFIER_nondet_int() [L517] COND FALSE !(\read(tmp)) [L525] tmp___0 = __VERIFIER_nondet_int() [L527] COND FALSE !(\read(tmp___0)) [L535] tmp___2 = __VERIFIER_nondet_int() [L537] COND TRUE \read(tmp___2) [L550] CALL timeShift() [L324] CALL __utac_acc__Specification5_spec__2() [L167] CALL, EXPR isPumpRunning() [L433] int retValue_acc ; [L436] retValue_acc = pumpRunning [L437] return (retValue_acc); [L167] RET, EXPR isPumpRunning() [L167] switchedOnBeforeTS = isPumpRunning() [L324] RET __utac_acc__Specification5_spec__2() [L326] COND FALSE !(\read(pumpRunning)) [L333] COND TRUE \read(systemActive) [L335] CALL processEnvironment() [L381] int tmp ; [L384] COND FALSE !(\read(pumpRunning)) [L399] CALL processEnvironment__wrappee__highWaterSensor() [L355] int tmp ; [L358] COND TRUE ! pumpRunning [L360] CALL, EXPR isHighWaterLevel() [L478] int retValue_acc ; [L479] int tmp ; [L480] int tmp___0 ; [L484] CALL, EXPR isHighWaterSensorDry() [L137] int retValue_acc ; [L140] COND TRUE waterLevel < 2 [L141] retValue_acc = 1 [L142] return (retValue_acc); [L484] RET, EXPR isHighWaterSensorDry() [L484] tmp = isHighWaterSensorDry() [L486] COND TRUE \read(tmp) [L487] tmp___0 = 0 [L491] retValue_acc = tmp___0 [L492] return (retValue_acc); [L360] RET, EXPR isHighWaterLevel() [L360] tmp = isHighWaterLevel() [L362] COND FALSE !(\read(tmp)) [L368] FCALL processEnvironment__wrappee__base() [L399] RET processEnvironment__wrappee__highWaterSensor() [L335] RET processEnvironment() [L341] CALL __utac_acc__Specification5_spec__3() [L173] int tmp ; [L174] int tmp___0 ; [L178] CALL, EXPR getWaterLevel() [L128] int retValue_acc ; [L131] retValue_acc = waterLevel [L132] return (retValue_acc); [L178] RET, EXPR getWaterLevel() [L178] tmp = getWaterLevel() [L180] COND TRUE tmp != 2 [L182] CALL, EXPR isPumpRunning() [L433] int retValue_acc ; [L436] retValue_acc = pumpRunning [L437] return (retValue_acc); [L182] RET, EXPR isPumpRunning() [L182] tmp___0 = isPumpRunning() [L184] COND FALSE !(\read(tmp___0)) [L341] RET __utac_acc__Specification5_spec__3() [L550] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 507]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L57] int waterLevel = 1; [L58] int methaneLevelCritical = 0; [L153] int switchedOnBeforeTS ; [L202] int cleanupTimeShifts = 4; [L316] int pumpRunning = 0; [L317] int systemActive = 1; [L766] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L282] int retValue_acc ; [L283] int tmp ; [L287] FCALL select_helpers() [L288] FCALL select_features() [L289] CALL, EXPR valid_product() [L588] int retValue_acc ; [L591] retValue_acc = 1 [L592] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L289] RET, EXPR valid_product() [L289] tmp = valid_product() [L291] COND TRUE \read(tmp) [L293] FCALL setup() [L294] CALL runTest() [L272] CALL __utac_acc__Specification5_spec__1() [L158] switchedOnBeforeTS = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L272] RET __utac_acc__Specification5_spec__1() [L273] CALL test() [L498] int splverifierCounter ; [L499] int tmp ; [L500] int tmp___0 ; [L501] int tmp___1 ; [L502] int tmp___2 ; [L505] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] Loop: [L507] COND TRUE 1 [L509] COND TRUE splverifierCounter < 4 [L515] tmp = __VERIFIER_nondet_int() [L517] COND FALSE !(\read(tmp)) [L525] tmp___0 = __VERIFIER_nondet_int() [L527] COND FALSE !(\read(tmp___0)) [L535] tmp___2 = __VERIFIER_nondet_int() [L537] COND TRUE \read(tmp___2) [L550] CALL timeShift() [L324] CALL __utac_acc__Specification5_spec__2() [L167] CALL, EXPR isPumpRunning() [L433] int retValue_acc ; [L436] retValue_acc = pumpRunning [L437] return (retValue_acc); [L167] RET, EXPR isPumpRunning() [L167] switchedOnBeforeTS = isPumpRunning() [L324] RET __utac_acc__Specification5_spec__2() [L326] COND FALSE !(\read(pumpRunning)) [L333] COND TRUE \read(systemActive) [L335] CALL processEnvironment() [L381] int tmp ; [L384] COND FALSE !(\read(pumpRunning)) [L399] CALL processEnvironment__wrappee__highWaterSensor() [L355] int tmp ; [L358] COND TRUE ! pumpRunning [L360] CALL, EXPR isHighWaterLevel() [L478] int retValue_acc ; [L479] int tmp ; [L480] int tmp___0 ; [L484] CALL, EXPR isHighWaterSensorDry() [L137] int retValue_acc ; [L140] COND TRUE waterLevel < 2 [L141] retValue_acc = 1 [L142] return (retValue_acc); [L484] RET, EXPR isHighWaterSensorDry() [L484] tmp = isHighWaterSensorDry() [L486] COND TRUE \read(tmp) [L487] tmp___0 = 0 [L491] retValue_acc = tmp___0 [L492] return (retValue_acc); [L360] RET, EXPR isHighWaterLevel() [L360] tmp = isHighWaterLevel() [L362] COND FALSE !(\read(tmp)) [L368] FCALL processEnvironment__wrappee__base() [L399] RET processEnvironment__wrappee__highWaterSensor() [L335] RET processEnvironment() [L341] CALL __utac_acc__Specification5_spec__3() [L173] int tmp ; [L174] int tmp___0 ; [L178] CALL, EXPR getWaterLevel() [L128] int retValue_acc ; [L131] retValue_acc = waterLevel [L132] return (retValue_acc); [L178] RET, EXPR getWaterLevel() [L178] tmp = getWaterLevel() [L180] COND TRUE tmp != 2 [L182] CALL, EXPR isPumpRunning() [L433] int retValue_acc ; [L436] retValue_acc = pumpRunning [L437] return (retValue_acc); [L182] RET, EXPR isPumpRunning() [L182] tmp___0 = isPumpRunning() [L184] COND FALSE !(\read(tmp___0)) [L341] RET __utac_acc__Specification5_spec__3() [L550] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-10 23:16:18,077 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)