./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product24.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_spec3_product24.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 168393e8d033cc8a1f93b6836944286e12246452392b8a342ff0210c89948e1e --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 23:14:37,768 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 23:14:37,846 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-10 23:14:37,852 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 23:14:37,853 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 23:14:37,853 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2024-11-10 23:14:37,892 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 23:14:37,893 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 23:14:37,893 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 23:14:37,894 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 23:14:37,895 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 23:14:37,895 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 23:14:37,896 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 23:14:37,896 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 23:14:37,896 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-10 23:14:37,897 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-10 23:14:37,897 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-10 23:14:37,900 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-10 23:14:37,900 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-10 23:14:37,900 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-10 23:14:37,901 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 23:14:37,904 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-10 23:14:37,904 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 23:14:37,904 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 23:14:37,905 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 23:14:37,905 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 23:14:37,905 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-10 23:14:37,905 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-10 23:14:37,906 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-10 23:14:37,906 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 23:14:37,906 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 23:14:37,906 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 23:14:37,907 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 23:14:37,907 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-10 23:14:37,907 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 23:14:37,908 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 23:14:37,908 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 23:14:37,909 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 23:14:37,909 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 23:14:37,910 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-10 23:14:37,910 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 168393e8d033cc8a1f93b6836944286e12246452392b8a342ff0210c89948e1e [2024-11-10 23:14:38,168 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 23:14:38,192 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 23:14:38,194 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 23:14:38,195 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 23:14:38,195 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 23:14:38,196 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product24.cil.c [2024-11-10 23:14:39,651 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 23:14:39,897 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 23:14:39,897 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product24.cil.c [2024-11-10 23:14:39,911 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c85c090b/322b3ce45b0344d497a28fb4f6ee5fc3/FLAG84b03e36c [2024-11-10 23:14:40,234 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c85c090b/322b3ce45b0344d497a28fb4f6ee5fc3 [2024-11-10 23:14:40,237 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 23:14:40,238 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 23:14:40,241 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 23:14:40,241 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 23:14:40,246 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 23:14:40,247 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:14:40" (1/1) ... [2024-11-10 23:14:40,248 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51e0f0ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:14:40, skipping insertion in model container [2024-11-10 23:14:40,248 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:14:40" (1/1) ... [2024-11-10 23:14:40,292 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 23:14:40,641 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 23:14:40,658 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 23:14:40,669 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] [2024-11-10 23:14:40,671 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [58] [2024-11-10 23:14:40,672 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [271] [2024-11-10 23:14:40,672 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [343] [2024-11-10 23:14:40,672 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [378] [2024-11-10 23:14:40,672 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [477] [2024-11-10 23:14:40,673 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [843] [2024-11-10 23:14:40,673 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [932] [2024-11-10 23:14:40,762 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 23:14:40,788 INFO L204 MainTranslator]: Completed translation [2024-11-10 23:14:40,788 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:14:40 WrapperNode [2024-11-10 23:14:40,789 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 23:14:40,790 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 23:14:40,790 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 23:14:40,790 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 23:14:40,797 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:14:40" (1/1) ... [2024-11-10 23:14:40,816 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:14:40" (1/1) ... [2024-11-10 23:14:40,872 INFO L138 Inliner]: procedures = 55, calls = 102, calls flagged for inlining = 55, calls inlined = 86, statements flattened = 548 [2024-11-10 23:14:40,872 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 23:14:40,873 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 23:14:40,873 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 23:14:40,873 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 23:14:40,886 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:14:40" (1/1) ... [2024-11-10 23:14:40,886 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:14:40" (1/1) ... [2024-11-10 23:14:40,892 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:14:40" (1/1) ... [2024-11-10 23:14:40,919 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 23:14:40,919 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:14:40" (1/1) ... [2024-11-10 23:14:40,919 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:14:40" (1/1) ... [2024-11-10 23:14:40,931 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:14:40" (1/1) ... [2024-11-10 23:14:40,936 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:14:40" (1/1) ... [2024-11-10 23:14:40,942 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:14:40" (1/1) ... [2024-11-10 23:14:40,944 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:14:40" (1/1) ... [2024-11-10 23:14:40,947 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 23:14:40,948 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 23:14:40,948 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 23:14:40,949 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 23:14:40,950 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:14:40" (1/1) ... [2024-11-10 23:14:40,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:14:40,975 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:14:40,994 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 23:14:40,998 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 23:14:41,053 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 23:14:41,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 23:14:41,054 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 23:14:41,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 23:14:41,154 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 23:14:41,157 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 23:14:41,587 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L929-1: isLowWaterSensorDry_#res#1 := isLowWaterSensorDry_~retValue_acc~9#1; [2024-11-10 23:14:41,587 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L929-3: isLowWaterSensorDry_#res#1 := isLowWaterSensorDry_~retValue_acc~9#1; [2024-11-10 23:14:41,587 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L929-5: isLowWaterSensorDry_#res#1 := isLowWaterSensorDry_~retValue_acc~9#1; [2024-11-10 23:14:41,587 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L929-7: isLowWaterSensorDry_#res#1 := isLowWaterSensorDry_~retValue_acc~9#1; [2024-11-10 23:14:41,587 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L929-9: isLowWaterSensorDry_#res#1 := isLowWaterSensorDry_~retValue_acc~9#1; [2024-11-10 23:14:41,587 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L929-11: isLowWaterSensorDry_#res#1 := isLowWaterSensorDry_~retValue_acc~9#1; [2024-11-10 23:14:41,587 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L964-1: valid_product_#res#1 := valid_product_~retValue_acc~11#1; [2024-11-10 23:14:41,588 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L190-1: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; [2024-11-10 23:14:41,588 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L190-3: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; [2024-11-10 23:14:41,588 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L190-5: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; [2024-11-10 23:14:41,588 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L474-1: main_#res#1 := main_~retValue_acc~3#1; [2024-11-10 23:14:41,588 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L920-1: getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~8#1; [2024-11-10 23:14:41,588 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L920-3: getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~8#1; [2024-11-10 23:14:41,588 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L920-5: getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~8#1; [2024-11-10 23:14:41,589 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L888-1: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~7#1; [2024-11-10 23:14:41,589 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L888-3: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~7#1; [2024-11-10 23:14:41,589 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L888-5: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~7#1; [2024-11-10 23:14:41,589 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L888-7: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~7#1; [2024-11-10 23:14:41,589 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L888-9: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~7#1; [2024-11-10 23:14:41,589 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L888-11: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~7#1; [2024-11-10 23:14:41,589 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L245-1: isLowWaterLevel_#res#1 := isLowWaterLevel_~retValue_acc~2#1; [2024-11-10 23:14:41,589 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L245-3: isLowWaterLevel_#res#1 := isLowWaterLevel_~retValue_acc~2#1; [2024-11-10 23:14:41,590 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L245-5: isLowWaterLevel_#res#1 := isLowWaterLevel_~retValue_acc~2#1; [2024-11-10 23:14:41,590 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L245-7: isLowWaterLevel_#res#1 := isLowWaterLevel_~retValue_acc~2#1; [2024-11-10 23:14:41,590 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L245-9: isLowWaterLevel_#res#1 := isLowWaterLevel_~retValue_acc~2#1; [2024-11-10 23:14:41,590 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L245-11: isLowWaterLevel_#res#1 := isLowWaterLevel_~retValue_acc~2#1; [2024-11-10 23:14:41,590 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L181-1: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~0#1; [2024-11-10 23:14:41,590 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L181-3: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~0#1; [2024-11-10 23:14:41,590 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L181-5: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~0#1; [2024-11-10 23:14:41,629 INFO L? ?]: Removed 127 outVars from TransFormulas that were not future-live. [2024-11-10 23:14:41,629 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 23:14:41,645 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 23:14:41,648 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 23:14:41,649 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 11:14:41 BoogieIcfgContainer [2024-11-10 23:14:41,649 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 23:14:41,650 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-10 23:14:41,650 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-10 23:14:41,654 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-10 23:14:41,654 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-10 23:14:41,654 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 10.11 11:14:40" (1/3) ... [2024-11-10 23:14:41,655 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3470ac29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 11:14:41, skipping insertion in model container [2024-11-10 23:14:41,655 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-10 23:14:41,655 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:14:40" (2/3) ... [2024-11-10 23:14:41,656 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3470ac29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 11:14:41, skipping insertion in model container [2024-11-10 23:14:41,656 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-10 23:14:41,656 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 11:14:41" (3/3) ... [2024-11-10 23:14:41,657 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product24.cil.c [2024-11-10 23:14:41,708 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-10 23:14:41,709 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-10 23:14:41,709 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-10 23:14:41,709 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-10 23:14:41,709 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-10 23:14:41,709 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-10 23:14:41,709 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-10 23:14:41,709 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-10 23:14:41,714 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 164 states, 163 states have (on average 1.343558282208589) internal successors, (219), 163 states have internal predecessors, (219), 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 23:14:41,739 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 106 [2024-11-10 23:14:41,739 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-10 23:14:41,739 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-10 23:14:41,746 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-10 23:14:41,746 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 23:14:41,747 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-10 23:14:41,747 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 164 states, 163 states have (on average 1.343558282208589) internal successors, (219), 163 states have internal predecessors, (219), 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 23:14:41,754 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 106 [2024-11-10 23:14:41,754 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-10 23:14:41,754 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-10 23:14:41,755 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-10 23:14:41,755 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 23:14:41,760 INFO L745 eck$LassoCheckResult]: Stem: 146#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);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 36#ULTIMATE.init_returnLabel#1true assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret23#1, main_~retValue_acc~3#1, main_~tmp~5#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 96#L955true assume true;assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 7#L948true assume true;assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 126#L963true assume true;main_#t~ret23#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret23#1;havoc main_#t~ret23#1; 136#L464true assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 120#L438true assume true;assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet16#1, test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 141#L285true [2024-11-10 23:14:41,761 INFO L747 eck$LassoCheckResult]: Loop: 141#L285true assume true; 77#L285-1true assume !false;assume true; 87#L287true assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet16#1;test_~tmp~3#1 := test_#t~nondet16#1;havoc test_#t~nondet16#1; 8#L295true assume !(0 != test_~tmp~3#1); 150#L303true havoc test_#t~nondet17#1;test_~tmp___0~1#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; 84#L305true assume !(0 != test_~tmp___0~1#1); 31#L313true havoc test_#t~nondet18#1;test_~tmp___2~0#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; 60#L315true assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet19#1;test_~tmp___1~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 5#L323true assume !(0 != test_~tmp___1~0#1); 37#L332true assume { :begin_inline_timeShift } true; 61#L78-2true assume !(0 != ~pumpRunning~0); 6#L85-2true assume !(0 != ~systemActive~0); 125#L93-2true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret20#1, __utac_acc__Specification3_spec__1_#t~ret21#1, __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~4#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;isMethaneLevelCritical_~retValue_acc~7#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~7#1; 54#L887-4true assume true;__utac_acc__Specification3_spec__1_#t~ret20#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4#1 := __utac_acc__Specification3_spec__1_#t~ret20#1;havoc __utac_acc__Specification3_spec__1_#t~ret20#1; 49#L354-2true assume 0 != __utac_acc__Specification3_spec__1_~tmp~4#1; 56#L375-2true assume true;havoc __utac_acc__Specification3_spec__1_#t~ret20#1, __utac_acc__Specification3_spec__1_#t~ret21#1, __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 130#L95-2true assume true;assume { :end_inline_timeShift } true; 141#L285true [2024-11-10 23:14:41,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 23:14:41,766 INFO L85 PathProgramCache]: Analyzing trace with hash -1020184442, now seen corresponding path program 1 times [2024-11-10 23:14:41,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 23:14:41,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453275694] [2024-11-10 23:14:41,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 23:14:41,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 23:14:41,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:14:41,872 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 23:14:41,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:14:41,921 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 23:14:41,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 23:14:41,924 INFO L85 PathProgramCache]: Analyzing trace with hash 681426314, now seen corresponding path program 1 times [2024-11-10 23:14:41,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 23:14:41,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010836666] [2024-11-10 23:14:41,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 23:14:41,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 23:14:41,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:14:41,936 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 23:14:41,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:14:41,971 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 23:14:41,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 23:14:41,978 INFO L85 PathProgramCache]: Analyzing trace with hash 382599077, now seen corresponding path program 1 times [2024-11-10 23:14:41,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 23:14:41,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266294761] [2024-11-10 23:14:41,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 23:14:41,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 23:14:42,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 23:14:42,267 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 23:14:42,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 23:14:42,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266294761] [2024-11-10 23:14:42,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266294761] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 23:14:42,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 23:14:42,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 23:14:42,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694658413] [2024-11-10 23:14:42,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 23:14:42,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 23:14:42,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 23:14:42,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-10 23:14:42,395 INFO L87 Difference]: Start difference. First operand has 164 states, 163 states have (on average 1.343558282208589) internal successors, (219), 163 states have internal predecessors, (219), 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 4.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 23:14:42,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 23:14:42,533 INFO L93 Difference]: Finished difference Result 378 states and 489 transitions. [2024-11-10 23:14:42,534 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 378 states and 489 transitions. [2024-11-10 23:14:42,542 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 244 [2024-11-10 23:14:42,551 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 378 states to 345 states and 456 transitions. [2024-11-10 23:14:42,552 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 345 [2024-11-10 23:14:42,553 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 345 [2024-11-10 23:14:42,553 INFO L73 IsDeterministic]: Start isDeterministic. Operand 345 states and 456 transitions. [2024-11-10 23:14:42,555 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-10 23:14:42,556 INFO L218 hiAutomatonCegarLoop]: Abstraction has 345 states and 456 transitions. [2024-11-10 23:14:42,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states and 456 transitions. [2024-11-10 23:14:42,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 204. [2024-11-10 23:14:42,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 204 states have (on average 1.3235294117647058) internal successors, (270), 203 states have internal predecessors, (270), 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 23:14:42,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 270 transitions. [2024-11-10 23:14:42,588 INFO L240 hiAutomatonCegarLoop]: Abstraction has 204 states and 270 transitions. [2024-11-10 23:14:42,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 23:14:42,594 INFO L425 stractBuchiCegarLoop]: Abstraction has 204 states and 270 transitions. [2024-11-10 23:14:42,595 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-10 23:14:42,595 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 204 states and 270 transitions. [2024-11-10 23:14:42,596 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 143 [2024-11-10 23:14:42,597 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-10 23:14:42,597 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-10 23:14:42,597 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-10 23:14:42,597 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] [2024-11-10 23:14:42,597 INFO L745 eck$LassoCheckResult]: Stem: 707#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);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 626#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret23#1, main_~retValue_acc~3#1, main_~tmp~5#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 627#L955 assume true;assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 569#L948 assume true;assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 570#L963 assume true;main_#t~ret23#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret23#1;havoc main_#t~ret23#1; 704#L464 assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 699#L438 assume true;assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet16#1, test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 700#L285 [2024-11-10 23:14:42,598 INFO L747 eck$LassoCheckResult]: Loop: 700#L285 assume true; 670#L285-1 assume !false;assume true; 671#L287 assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet16#1;test_~tmp~3#1 := test_#t~nondet16#1;havoc test_#t~nondet16#1; 571#L295 assume !(0 != test_~tmp~3#1); 573#L303 havoc test_#t~nondet17#1;test_~tmp___0~1#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; 678#L305 assume !(0 != test_~tmp___0~1#1); 615#L313 havoc test_#t~nondet18#1;test_~tmp___2~0#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; 616#L315 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 610#L268 assume true;assume { :end_inline_startSystem } true; 566#L332 assume { :begin_inline_timeShift } true; 628#L78-2 assume !(0 != ~pumpRunning~0); 567#L85-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 568#L136-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret4#1, processEnvironment__wrappee__lowWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~0#1; 611#L110-5 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 612#L102-11 assume true;assume { :end_inline_processEnvironment__wrappee__base } true; 618#L128-5 assume true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret4#1, processEnvironment__wrappee__lowWaterSensor_~tmp~0#1;assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 685#L154-2 assume true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~1#1;assume { :end_inline_processEnvironment } true; 703#L93-2 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret20#1, __utac_acc__Specification3_spec__1_#t~ret21#1, __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~4#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;isMethaneLevelCritical_~retValue_acc~7#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~7#1; 647#L887-4 assume true;__utac_acc__Specification3_spec__1_#t~ret20#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4#1 := __utac_acc__Specification3_spec__1_#t~ret20#1;havoc __utac_acc__Specification3_spec__1_#t~ret20#1; 639#L354-2 assume 0 != __utac_acc__Specification3_spec__1_~tmp~4#1; 563#L375-2 assume true;havoc __utac_acc__Specification3_spec__1_#t~ret20#1, __utac_acc__Specification3_spec__1_#t~ret21#1, __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 650#L95-2 assume true;assume { :end_inline_timeShift } true; 700#L285 [2024-11-10 23:14:42,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 23:14:42,598 INFO L85 PathProgramCache]: Analyzing trace with hash -1020184442, now seen corresponding path program 2 times [2024-11-10 23:14:42,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 23:14:42,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649173972] [2024-11-10 23:14:42,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 23:14:42,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 23:14:42,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:14:42,606 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 23:14:42,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:14:42,615 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 23:14:42,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 23:14:42,616 INFO L85 PathProgramCache]: Analyzing trace with hash 1560149134, now seen corresponding path program 1 times [2024-11-10 23:14:42,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 23:14:42,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304104340] [2024-11-10 23:14:42,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 23:14:42,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 23:14:42,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:14:42,623 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 23:14:42,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:14:42,629 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 23:14:42,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 23:14:42,630 INFO L85 PathProgramCache]: Analyzing trace with hash -1699097773, now seen corresponding path program 1 times [2024-11-10 23:14:42,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 23:14:42,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322249071] [2024-11-10 23:14:42,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 23:14:42,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 23:14:42,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 23:14:42,764 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 23:14:42,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 23:14:42,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322249071] [2024-11-10 23:14:42,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322249071] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 23:14:42,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 23:14:42,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 23:14:42,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519907364] [2024-11-10 23:14:42,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 23:14:42,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 23:14:42,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 23:14:42,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 23:14:42,837 INFO L87 Difference]: Start difference. First operand 204 states and 270 transitions. cyclomatic complexity: 69 Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 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 23:14:42,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 23:14:42,944 INFO L93 Difference]: Finished difference Result 401 states and 525 transitions. [2024-11-10 23:14:42,944 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 401 states and 525 transitions. [2024-11-10 23:14:42,948 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 286 [2024-11-10 23:14:42,955 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 401 states to 401 states and 525 transitions. [2024-11-10 23:14:42,955 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 401 [2024-11-10 23:14:42,956 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 401 [2024-11-10 23:14:42,956 INFO L73 IsDeterministic]: Start isDeterministic. Operand 401 states and 525 transitions. [2024-11-10 23:14:42,958 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-10 23:14:42,961 INFO L218 hiAutomatonCegarLoop]: Abstraction has 401 states and 525 transitions. [2024-11-10 23:14:42,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states and 525 transitions. [2024-11-10 23:14:42,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 401. [2024-11-10 23:14:42,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 401 states have (on average 1.3092269326683292) internal successors, (525), 400 states have internal predecessors, (525), 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 23:14:42,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 525 transitions. [2024-11-10 23:14:42,985 INFO L240 hiAutomatonCegarLoop]: Abstraction has 401 states and 525 transitions. [2024-11-10 23:14:42,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 23:14:42,986 INFO L425 stractBuchiCegarLoop]: Abstraction has 401 states and 525 transitions. [2024-11-10 23:14:42,987 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-10 23:14:42,987 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 401 states and 525 transitions. [2024-11-10 23:14:42,989 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 286 [2024-11-10 23:14:42,990 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-10 23:14:42,990 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-10 23:14:42,990 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-10 23:14:42,990 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 23:14:42,991 INFO L745 eck$LassoCheckResult]: Stem: 1383#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);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 1247#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret23#1, main_~retValue_acc~3#1, main_~tmp~5#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 1248#L955 assume true;assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1188#L948 assume true;assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 1189#L963 assume true;main_#t~ret23#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret23#1;havoc main_#t~ret23#1; 1371#L464 assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 1362#L438 assume true;assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet16#1, test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1363#L285 [2024-11-10 23:14:42,991 INFO L747 eck$LassoCheckResult]: Loop: 1363#L285 assume true; 1312#L285-1 assume !false;assume true; 1313#L287 assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet16#1;test_~tmp~3#1 := test_#t~nondet16#1;havoc test_#t~nondet16#1; 1325#L295 assume !(0 != test_~tmp~3#1); 1569#L303 havoc test_#t~nondet17#1;test_~tmp___0~1#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; 1567#L305 assume !(0 != test_~tmp___0~1#1); 1565#L313 havoc test_#t~nondet18#1;test_~tmp___2~0#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; 1564#L315 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 1230#L268 assume true;assume { :end_inline_startSystem } true; 1185#L332 assume { :begin_inline_timeShift } true; 1249#L78-2 assume !(0 != ~pumpRunning~0); 1186#L85-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 1187#L136-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret4#1, processEnvironment__wrappee__lowWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~0#1; 1254#L110-5 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 1523#L102-11 assume true;assume { :end_inline_processEnvironment__wrappee__base } true; 1520#L128-5 assume true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret4#1, processEnvironment__wrappee__lowWaterSensor_~tmp~0#1;assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 1396#L154-2 assume true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~1#1;assume { :end_inline_processEnvironment } true; 1368#L93-2 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret20#1, __utac_acc__Specification3_spec__1_#t~ret21#1, __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~4#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;isMethaneLevelCritical_~retValue_acc~7#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~7#1; 1276#L887-4 assume true;__utac_acc__Specification3_spec__1_#t~ret20#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4#1 := __utac_acc__Specification3_spec__1_#t~ret20#1;havoc __utac_acc__Specification3_spec__1_#t~ret20#1; 1265#L354-2 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~4#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~8#1;havoc getWaterLevel_~retValue_acc~8#1;getWaterLevel_~retValue_acc~8#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~8#1; 1266#L919-2 assume true;__utac_acc__Specification3_spec__1_#t~ret21#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~8#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~2#1 := __utac_acc__Specification3_spec__1_#t~ret21#1;havoc __utac_acc__Specification3_spec__1_#t~ret21#1; 1570#L360-2 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~2#1); 1568#L375-2 assume true;havoc __utac_acc__Specification3_spec__1_#t~ret20#1, __utac_acc__Specification3_spec__1_#t~ret21#1, __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1372#L95-2 assume true;assume { :end_inline_timeShift } true; 1363#L285 [2024-11-10 23:14:42,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 23:14:42,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1020184442, now seen corresponding path program 3 times [2024-11-10 23:14:42,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 23:14:42,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701115276] [2024-11-10 23:14:42,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 23:14:42,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 23:14:43,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:14:43,001 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 23:14:43,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:14:43,008 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 23:14:43,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 23:14:43,009 INFO L85 PathProgramCache]: Analyzing trace with hash 359246476, now seen corresponding path program 1 times [2024-11-10 23:14:43,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 23:14:43,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082066774] [2024-11-10 23:14:43,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 23:14:43,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 23:14:43,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:14:43,016 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 23:14:43,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:14:43,027 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 23:14:43,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 23:14:43,032 INFO L85 PathProgramCache]: Analyzing trace with hash -745872367, now seen corresponding path program 1 times [2024-11-10 23:14:43,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 23:14:43,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188050283] [2024-11-10 23:14:43,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 23:14:43,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 23:14:43,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:14:43,056 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 23:14:43,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:14:43,076 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 23:14:43,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:14:43,950 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 23:14:43,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:14:44,013 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 10.11 11:14:44 BoogieIcfgContainer [2024-11-10 23:14:44,016 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-10 23:14:44,017 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-10 23:14:44,017 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-10 23:14:44,017 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-10 23:14:44,018 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 11:14:41" (3/4) ... [2024-11-10 23:14:44,020 INFO L140 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-10 23:14:44,082 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-10 23:14:44,083 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-10 23:14:44,084 INFO L158 Benchmark]: Toolchain (without parser) took 3845.20ms. Allocated memory is still 184.5MB. Free memory was 131.1MB in the beginning and 53.8MB in the end (delta: 77.3MB). Peak memory consumption was 79.2MB. Max. memory is 16.1GB. [2024-11-10 23:14:44,085 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 184.5MB. Free memory was 152.4MB in the beginning and 152.1MB in the end (delta: 285.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 23:14:44,085 INFO L158 Benchmark]: CACSL2BoogieTranslator took 548.41ms. Allocated memory is still 184.5MB. Free memory was 131.1MB in the beginning and 109.7MB in the end (delta: 21.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-10 23:14:44,085 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.71ms. Allocated memory is still 184.5MB. Free memory was 109.7MB in the beginning and 106.4MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-10 23:14:44,085 INFO L158 Benchmark]: Boogie Preprocessor took 74.46ms. Allocated memory is still 184.5MB. Free memory was 106.4MB in the beginning and 103.4MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 23:14:44,086 INFO L158 Benchmark]: IcfgBuilder took 700.86ms. Allocated memory is still 184.5MB. Free memory was 103.4MB in the beginning and 72.4MB in the end (delta: 31.0MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2024-11-10 23:14:44,087 INFO L158 Benchmark]: BuchiAutomizer took 2366.65ms. Allocated memory is still 184.5MB. Free memory was 72.4MB in the beginning and 56.9MB in the end (delta: 15.5MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. [2024-11-10 23:14:44,087 INFO L158 Benchmark]: Witness Printer took 65.83ms. Allocated memory is still 184.5MB. Free memory was 56.9MB in the beginning and 53.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-10 23:14:44,088 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 184.5MB. Free memory was 152.4MB in the beginning and 152.1MB in the end (delta: 285.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 548.41ms. Allocated memory is still 184.5MB. Free memory was 131.1MB in the beginning and 109.7MB in the end (delta: 21.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 82.71ms. Allocated memory is still 184.5MB. Free memory was 109.7MB in the beginning and 106.4MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 74.46ms. Allocated memory is still 184.5MB. Free memory was 106.4MB in the beginning and 103.4MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 700.86ms. Allocated memory is still 184.5MB. Free memory was 103.4MB in the beginning and 72.4MB in the end (delta: 31.0MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 2366.65ms. Allocated memory is still 184.5MB. Free memory was 72.4MB in the beginning and 56.9MB in the end (delta: 15.5MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. * Witness Printer took 65.83ms. Allocated memory is still 184.5MB. Free memory was 56.9MB in the beginning and 53.8MB 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,"wsllib_check.i","") [49] - GenericResultAtLocation [Line: 58]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [58] - GenericResultAtLocation [Line: 271]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [271] - GenericResultAtLocation [Line: 343]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [343] - GenericResultAtLocation [Line: 378]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [378] - GenericResultAtLocation [Line: 477]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [477] - GenericResultAtLocation [Line: 843]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [843] - GenericResultAtLocation [Line: 932]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [932] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 401 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.2s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.8s. Construction of modules took 0.1s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 141 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, 723 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 723 mSDsluCounter, 1617 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1222 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 100 IncrementalHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 395 mSDtfsCounter, 100 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc2 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: 285]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L70] int pumpRunning = 0; [L71] int systemActive = 1; [L379] int cleanupTimeShifts = 4; [L647] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L844] int waterLevel = 1; [L845] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L455] int retValue_acc ; [L456] int tmp ; [L460] FCALL select_helpers() [L461] FCALL select_features() [L462] CALL, EXPR valid_product() [L959] int retValue_acc ; [L962] retValue_acc = 1 [L963] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L462] RET, EXPR valid_product() [L462] tmp = valid_product() [L464] COND TRUE \read(tmp) [L466] FCALL setup() [L467] CALL runTest() [L446] CALL test() [L276] int splverifierCounter ; [L277] int tmp ; [L278] int tmp___0 ; [L279] int tmp___1 ; [L280] int tmp___2 ; [L283] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L285] COND TRUE 1 [L287] COND TRUE splverifierCounter < 4 [L293] tmp = __VERIFIER_nondet_int() [L295] COND FALSE !(\read(tmp)) [L303] tmp___0 = __VERIFIER_nondet_int() [L305] COND FALSE !(\read(tmp___0)) [L313] tmp___2 = __VERIFIER_nondet_int() [L315] COND TRUE \read(tmp___2) [L317] CALL startSystem() [L267] systemActive = 1 [L317] RET startSystem() [L332] CALL timeShift() [L78] COND FALSE !(\read(pumpRunning)) [L85] COND TRUE \read(systemActive) [L87] CALL processEnvironment() [L133] int tmp ; [L136] COND FALSE !(\read(pumpRunning)) [L151] CALL processEnvironment__wrappee__lowWaterSensor() [L107] int tmp ; [L110] COND FALSE !(\read(pumpRunning)) [L125] FCALL processEnvironment__wrappee__base() [L151] RET processEnvironment__wrappee__lowWaterSensor() [L87] RET processEnvironment() [L93] CALL __utac_acc__Specification3_spec__1() [L346] int tmp ; [L347] int tmp___0 ; [L348] int tmp___1 ; [L352] CALL, EXPR isMethaneLevelCritical() [L883] int retValue_acc ; [L886] retValue_acc = methaneLevelCritical [L887] return (retValue_acc); [L352] RET, EXPR isMethaneLevelCritical() [L352] tmp = isMethaneLevelCritical() [L354] COND FALSE !(\read(tmp)) [L358] CALL, EXPR getWaterLevel() [L915] int retValue_acc ; [L918] retValue_acc = waterLevel [L919] return (retValue_acc); [L358] RET, EXPR getWaterLevel() [L358] tmp___0 = getWaterLevel() [L360] COND FALSE !(tmp___0 == 2) [L93] RET __utac_acc__Specification3_spec__1() [L332] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 285]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L70] int pumpRunning = 0; [L71] int systemActive = 1; [L379] int cleanupTimeShifts = 4; [L647] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L844] int waterLevel = 1; [L845] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L455] int retValue_acc ; [L456] int tmp ; [L460] FCALL select_helpers() [L461] FCALL select_features() [L462] CALL, EXPR valid_product() [L959] int retValue_acc ; [L962] retValue_acc = 1 [L963] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L462] RET, EXPR valid_product() [L462] tmp = valid_product() [L464] COND TRUE \read(tmp) [L466] FCALL setup() [L467] CALL runTest() [L446] CALL test() [L276] int splverifierCounter ; [L277] int tmp ; [L278] int tmp___0 ; [L279] int tmp___1 ; [L280] int tmp___2 ; [L283] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L285] COND TRUE 1 [L287] COND TRUE splverifierCounter < 4 [L293] tmp = __VERIFIER_nondet_int() [L295] COND FALSE !(\read(tmp)) [L303] tmp___0 = __VERIFIER_nondet_int() [L305] COND FALSE !(\read(tmp___0)) [L313] tmp___2 = __VERIFIER_nondet_int() [L315] COND TRUE \read(tmp___2) [L317] CALL startSystem() [L267] systemActive = 1 [L317] RET startSystem() [L332] CALL timeShift() [L78] COND FALSE !(\read(pumpRunning)) [L85] COND TRUE \read(systemActive) [L87] CALL processEnvironment() [L133] int tmp ; [L136] COND FALSE !(\read(pumpRunning)) [L151] CALL processEnvironment__wrappee__lowWaterSensor() [L107] int tmp ; [L110] COND FALSE !(\read(pumpRunning)) [L125] FCALL processEnvironment__wrappee__base() [L151] RET processEnvironment__wrappee__lowWaterSensor() [L87] RET processEnvironment() [L93] CALL __utac_acc__Specification3_spec__1() [L346] int tmp ; [L347] int tmp___0 ; [L348] int tmp___1 ; [L352] CALL, EXPR isMethaneLevelCritical() [L883] int retValue_acc ; [L886] retValue_acc = methaneLevelCritical [L887] return (retValue_acc); [L352] RET, EXPR isMethaneLevelCritical() [L352] tmp = isMethaneLevelCritical() [L354] COND FALSE !(\read(tmp)) [L358] CALL, EXPR getWaterLevel() [L915] int retValue_acc ; [L918] retValue_acc = waterLevel [L919] return (retValue_acc); [L358] RET, EXPR getWaterLevel() [L358] tmp___0 = getWaterLevel() [L360] COND FALSE !(tmp___0 == 2) [L93] RET __utac_acc__Specification3_spec__1() [L332] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-10 23:14:44,145 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, 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)