./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product60.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec4_product60.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 63a498e40ee7fb7960293994084186ed238562f61fafb5e109bd8b394667fc1f --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 08:48:10,641 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 08:48:10,706 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-17 08:48:10,712 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 08:48:10,712 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 08:48:10,712 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2024-11-17 08:48:10,737 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 08:48:10,738 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 08:48:10,738 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 08:48:10,739 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 08:48:10,740 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 08:48:10,740 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 08:48:10,741 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 08:48:10,742 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 08:48:10,742 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-17 08:48:10,742 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-17 08:48:10,743 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-17 08:48:10,743 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-17 08:48:10,745 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-17 08:48:10,745 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-17 08:48:10,745 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 08:48:10,746 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-17 08:48:10,746 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 08:48:10,746 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 08:48:10,746 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 08:48:10,747 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 08:48:10,747 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-17 08:48:10,747 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-17 08:48:10,747 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-17 08:48:10,747 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 08:48:10,747 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 08:48:10,747 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 08:48:10,748 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-17 08:48:10,748 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-17 08:48:10,748 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 08:48:10,748 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 08:48:10,748 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 08:48:10,748 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 08:48:10,749 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 08:48:10,749 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-17 08:48:10,750 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 63a498e40ee7fb7960293994084186ed238562f61fafb5e109bd8b394667fc1f [2024-11-17 08:48:10,972 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 08:48:10,993 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 08:48:10,995 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 08:48:10,996 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 08:48:11,000 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 08:48:11,001 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product60.cil.c [2024-11-17 08:48:12,388 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 08:48:12,577 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 08:48:12,577 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product60.cil.c [2024-11-17 08:48:12,593 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/455b8c9b6/e3f7bb1cfdd14eae94d83ca5679c663f/FLAG4a307ee87 [2024-11-17 08:48:12,606 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/455b8c9b6/e3f7bb1cfdd14eae94d83ca5679c663f [2024-11-17 08:48:12,608 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 08:48:12,609 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 08:48:12,610 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 08:48:12,611 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 08:48:12,616 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 08:48:12,617 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 08:48:12" (1/1) ... [2024-11-17 08:48:12,618 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50725f3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:48:12, skipping insertion in model container [2024-11-17 08:48:12,618 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 08:48:12" (1/1) ... [2024-11-17 08:48:12,650 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 08:48:12,928 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 08:48:12,942 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 08:48:12,950 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] [2024-11-17 08:48:12,952 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [87] [2024-11-17 08:48:12,952 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [188] [2024-11-17 08:48:12,952 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [554] [2024-11-17 08:48:12,952 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [583] [2024-11-17 08:48:12,953 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [592] [2024-11-17 08:48:12,953 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [839] [2024-11-17 08:48:12,953 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [908] [2024-11-17 08:48:13,024 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 08:48:13,053 INFO L204 MainTranslator]: Completed translation [2024-11-17 08:48:13,054 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:48:13 WrapperNode [2024-11-17 08:48:13,054 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 08:48:13,055 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 08:48:13,055 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 08:48:13,055 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 08:48:13,062 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:48:13" (1/1) ... [2024-11-17 08:48:13,079 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:48:13" (1/1) ... [2024-11-17 08:48:13,124 INFO L138 Inliner]: procedures = 58, calls = 104, calls flagged for inlining = 57, calls inlined = 101, statements flattened = 683 [2024-11-17 08:48:13,124 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 08:48:13,125 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 08:48:13,125 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 08:48:13,125 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 08:48:13,142 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:48:13" (1/1) ... [2024-11-17 08:48:13,143 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:48:13" (1/1) ... [2024-11-17 08:48:13,146 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:48:13" (1/1) ... [2024-11-17 08:48:13,170 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-17 08:48:13,170 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:48:13" (1/1) ... [2024-11-17 08:48:13,170 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:48:13" (1/1) ... [2024-11-17 08:48:13,182 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:48:13" (1/1) ... [2024-11-17 08:48:13,183 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:48:13" (1/1) ... [2024-11-17 08:48:13,188 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:48:13" (1/1) ... [2024-11-17 08:48:13,189 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:48:13" (1/1) ... [2024-11-17 08:48:13,192 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 08:48:13,196 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 08:48:13,196 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 08:48:13,196 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 08:48:13,196 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:48:13" (1/1) ... [2024-11-17 08:48:13,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:48:13,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:48:13,271 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:48:13,284 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-17 08:48:13,361 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 08:48:13,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 08:48:13,362 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 08:48:13,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 08:48:13,456 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 08:48:13,457 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 08:48:14,106 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L730-1: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~6#1; [2024-11-17 08:48:14,106 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L185-1: main_#res#1 := main_~retValue_acc~2#1; [2024-11-17 08:48:14,107 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L730-3: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~6#1; [2024-11-17 08:48:14,107 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L730-5: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~6#1; [2024-11-17 08:48:14,107 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L730-7: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~6#1; [2024-11-17 08:48:14,107 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L730-9: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~6#1; [2024-11-17 08:48:14,107 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L730-11: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~6#1; [2024-11-17 08:48:14,107 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L813-1: isLowWaterLevel_#res#1 := isLowWaterLevel_~retValue_acc~9#1; [2024-11-17 08:48:14,107 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L813-3: isLowWaterLevel_#res#1 := isLowWaterLevel_~retValue_acc~9#1; [2024-11-17 08:48:14,107 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L813-5: isLowWaterLevel_#res#1 := isLowWaterLevel_~retValue_acc~9#1; [2024-11-17 08:48:14,107 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L999-1: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~12#1; [2024-11-17 08:48:14,107 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L999-3: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~12#1; [2024-11-17 08:48:14,107 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L999-5: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~12#1; [2024-11-17 08:48:14,107 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L999-7: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~12#1; [2024-11-17 08:48:14,107 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L999-9: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~12#1; [2024-11-17 08:48:14,107 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L999-11: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~12#1; [2024-11-17 08:48:14,107 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L985-1: getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~11#1; [2024-11-17 08:48:14,107 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L985-3: getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~11#1; [2024-11-17 08:48:14,107 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L985-5: getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~11#1; [2024-11-17 08:48:14,108 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L953-1: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~10#1; [2024-11-17 08:48:14,108 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L953-3: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~10#1; [2024-11-17 08:48:14,108 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L953-5: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~10#1; [2024-11-17 08:48:14,108 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L953-7: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~10#1; [2024-11-17 08:48:14,108 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L953-9: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~10#1; [2024-11-17 08:48:14,108 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L953-11: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~10#1; [2024-11-17 08:48:14,108 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L739-1: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~7#1; [2024-11-17 08:48:14,108 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L739-3: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~7#1; [2024-11-17 08:48:14,108 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L739-5: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~7#1; [2024-11-17 08:48:14,108 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1008-1: isLowWaterSensorDry_#res#1 := isLowWaterSensorDry_~retValue_acc~13#1; [2024-11-17 08:48:14,108 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1008-3: isLowWaterSensorDry_#res#1 := isLowWaterSensorDry_~retValue_acc~13#1; [2024-11-17 08:48:14,108 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1008-5: isLowWaterSensorDry_#res#1 := isLowWaterSensorDry_~retValue_acc~13#1; [2024-11-17 08:48:14,108 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L794-1: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~8#1; [2024-11-17 08:48:14,108 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L794-3: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~8#1; [2024-11-17 08:48:14,108 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L794-5: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~8#1; [2024-11-17 08:48:14,108 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L794-7: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~8#1; [2024-11-17 08:48:14,108 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L84-1: valid_product_#res#1 := valid_product_~retValue_acc~1#1; [2024-11-17 08:48:14,109 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L794-9: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~8#1; [2024-11-17 08:48:14,109 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L794-11: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~8#1; [2024-11-17 08:48:14,150 INFO L? ?]: Removed 166 outVars from TransFormulas that were not future-live. [2024-11-17 08:48:14,151 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 08:48:14,163 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 08:48:14,164 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 08:48:14,164 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 08:48:14 BoogieIcfgContainer [2024-11-17 08:48:14,164 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 08:48:14,165 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-17 08:48:14,165 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-17 08:48:14,168 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-17 08:48:14,168 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-17 08:48:14,169 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 17.11 08:48:12" (1/3) ... [2024-11-17 08:48:14,169 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@71b37fcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.11 08:48:14, skipping insertion in model container [2024-11-17 08:48:14,169 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-17 08:48:14,170 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:48:13" (2/3) ... [2024-11-17 08:48:14,171 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@71b37fcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.11 08:48:14, skipping insertion in model container [2024-11-17 08:48:14,171 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-17 08:48:14,171 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 08:48:14" (3/3) ... [2024-11-17 08:48:14,172 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product60.cil.c [2024-11-17 08:48:14,219 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-17 08:48:14,219 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-17 08:48:14,219 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-17 08:48:14,220 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-17 08:48:14,220 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-17 08:48:14,220 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-17 08:48:14,220 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-17 08:48:14,220 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-17 08:48:14,225 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 196 states, 195 states have (on average 1.3487179487179488) internal successors, (263), 195 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:48:14,249 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 128 [2024-11-17 08:48:14,250 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:48:14,250 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:48:14,257 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:48:14,257 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:48:14,257 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-17 08:48:14,258 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 196 states, 195 states have (on average 1.3487179487179488) internal successors, (263), 195 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:48:14,270 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 128 [2024-11-17 08:48:14,273 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:48:14,273 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:48:14,274 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:48:14,274 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:48:14,278 INFO L745 eck$LassoCheckResult]: Stem: 184#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);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 24#ULTIMATE.init_returnLabel#1true assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret5#1, main_~retValue_acc~2#1, main_~tmp~0#1;havoc main_~retValue_acc~2#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 146#L75true assume true;assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 191#L68true assume true;assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 19#L83true assume true;main_#t~ret5#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret5#1;havoc main_#t~ret5#1; 103#L175true assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 61#L151true assume true;assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet45#1, test_#t~nondet46#1, test_#t~nondet47#1, test_#t~nondet48#1, test_~splverifierCounter~0#1, test_~tmp~10#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~10#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 89#L850true [2024-11-17 08:48:14,279 INFO L747 eck$LassoCheckResult]: Loop: 89#L850true assume true; 138#L850-1true assume !false; 186#test_while_4_continue#1true assume true; 114#L852true assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet45#1;test_~tmp~10#1 := test_#t~nondet45#1;havoc test_#t~nondet45#1; 78#L860true assume !(0 != test_~tmp~10#1); 25#L868true havoc test_#t~nondet46#1;test_~tmp___0~3#1 := test_#t~nondet46#1;havoc test_#t~nondet46#1; 58#L870true assume !(0 != test_~tmp___0~3#1); 139#L878true havoc test_#t~nondet47#1;test_~tmp___2~0#1 := test_#t~nondet47#1;havoc test_#t~nondet47#1; 126#L880true assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet48#1;test_~tmp___1~0#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1; 17#L888true assume !(0 != test_~tmp___1~0#1); 107#L897true assume { :begin_inline_timeShift } true; 197#L609-2true assume !(0 != ~pumpRunning~0); 87#L616-2true assume !(0 != ~systemActive~0); 106#L624-2true assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret29#1, __utac_acc__Specification4_spec__1_#t~ret30#1, __utac_acc__Specification4_spec__1_~tmp~4#1, __utac_acc__Specification4_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification4_spec__1_~tmp~4#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~11#1;havoc getWaterLevel_~retValue_acc~11#1;getWaterLevel_~retValue_acc~11#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~11#1; 178#L984-2true assume true;__utac_acc__Specification4_spec__1_#t~ret29#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~11#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~4#1 := __utac_acc__Specification4_spec__1_#t~ret29#1;havoc __utac_acc__Specification4_spec__1_#t~ret29#1; 36#L566-2true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~4#1); 9#L580-2true assume true;havoc __utac_acc__Specification4_spec__1_#t~ret29#1, __utac_acc__Specification4_spec__1_#t~ret30#1, __utac_acc__Specification4_spec__1_~tmp~4#1, __utac_acc__Specification4_spec__1_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification4_spec__1 } true; 47#L626-2true assume true;assume { :end_inline_timeShift } true; 89#L850true [2024-11-17 08:48:14,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:48:14,284 INFO L85 PathProgramCache]: Analyzing trace with hash -1584744651, now seen corresponding path program 1 times [2024-11-17 08:48:14,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:48:14,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249604258] [2024-11-17 08:48:14,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:48:14,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:48:14,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:48:14,378 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:48:14,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:48:14,410 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:48:14,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:48:14,413 INFO L85 PathProgramCache]: Analyzing trace with hash -409484563, now seen corresponding path program 1 times [2024-11-17 08:48:14,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:48:14,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227817968] [2024-11-17 08:48:14,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:48:14,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:48:14,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:48:14,426 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:48:14,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:48:14,435 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:48:14,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:48:14,439 INFO L85 PathProgramCache]: Analyzing trace with hash -1927375583, now seen corresponding path program 1 times [2024-11-17 08:48:14,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:48:14,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768001597] [2024-11-17 08:48:14,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:48:14,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:48:14,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:48:14,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:48:14,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 08:48:14,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768001597] [2024-11-17 08:48:14,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768001597] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 08:48:14,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 08:48:14,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 08:48:14,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228312442] [2024-11-17 08:48:14,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 08:48:14,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 08:48:14,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 08:48:14,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-17 08:48:14,735 INFO L87 Difference]: Start difference. First operand has 196 states, 195 states have (on average 1.3487179487179488) internal successors, (263), 195 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:48:14,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 08:48:14,830 INFO L93 Difference]: Finished difference Result 438 states and 570 transitions. [2024-11-17 08:48:14,831 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 438 states and 570 transitions. [2024-11-17 08:48:14,857 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 286 [2024-11-17 08:48:14,862 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 438 states to 405 states and 537 transitions. [2024-11-17 08:48:14,863 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 405 [2024-11-17 08:48:14,864 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 405 [2024-11-17 08:48:14,864 INFO L73 IsDeterministic]: Start isDeterministic. Operand 405 states and 537 transitions. [2024-11-17 08:48:14,866 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-17 08:48:14,866 INFO L218 hiAutomatonCegarLoop]: Abstraction has 405 states and 537 transitions. [2024-11-17 08:48:14,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states and 537 transitions. [2024-11-17 08:48:14,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 232. [2024-11-17 08:48:14,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 232 states have (on average 1.3232758620689655) internal successors, (307), 231 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:48:14,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 307 transitions. [2024-11-17 08:48:14,896 INFO L240 hiAutomatonCegarLoop]: Abstraction has 232 states and 307 transitions. [2024-11-17 08:48:14,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 08:48:14,900 INFO L425 stractBuchiCegarLoop]: Abstraction has 232 states and 307 transitions. [2024-11-17 08:48:14,901 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-17 08:48:14,901 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 232 states and 307 transitions. [2024-11-17 08:48:14,902 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 163 [2024-11-17 08:48:14,902 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:48:14,902 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:48:14,903 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:48:14,903 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:48:14,903 INFO L745 eck$LassoCheckResult]: Stem: 826#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);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 726#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret5#1, main_~retValue_acc~2#1, main_~tmp~0#1;havoc main_~retValue_acc~2#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 727#L75 assume true;assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 785#L68 assume true;assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 712#L83 assume true;main_#t~ret5#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret5#1;havoc main_#t~ret5#1; 654#L175 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 655#L151 assume true;assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet45#1, test_#t~nondet46#1, test_#t~nondet47#1, test_#t~nondet48#1, test_~splverifierCounter~0#1, test_~tmp~10#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~10#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 787#L850 [2024-11-17 08:48:14,904 INFO L747 eck$LassoCheckResult]: Loop: 787#L850 assume true; 759#L850-1 assume !false; 760#test_while_4_continue#1 assume true; 688#L852 assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet45#1;test_~tmp~10#1 := test_#t~nondet45#1;havoc test_#t~nondet45#1; 690#L860 assume !(0 != test_~tmp~10#1); 728#L868 havoc test_#t~nondet46#1;test_~tmp___0~3#1 := test_#t~nondet46#1;havoc test_#t~nondet46#1; 729#L870 assume !(0 != test_~tmp___0~3#1); 663#L878 havoc test_#t~nondet47#1;test_~tmp___2~0#1 := test_#t~nondet47#1;havoc test_#t~nondet47#1; 737#L880 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 691#L836 assume true;assume { :end_inline_startSystem } true; 668#L897 assume { :begin_inline_timeShift } true; 669#L609-2 assume !(0 != ~pumpRunning~0); 824#L616-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret32#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 783#L667-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret31#1, processEnvironment__wrappee__highWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5#1; 713#L641-5 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 714#L633-11 assume true;assume { :end_inline_processEnvironment__wrappee__base } true; 665#L659-5 assume true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret31#1, processEnvironment__wrappee__highWaterSensor_~tmp~5#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 724#L685-2 assume true;havoc processEnvironment_#t~ret32#1, processEnvironment_~tmp~6#1;assume { :end_inline_processEnvironment } true; 666#L624-2 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret29#1, __utac_acc__Specification4_spec__1_#t~ret30#1, __utac_acc__Specification4_spec__1_~tmp~4#1, __utac_acc__Specification4_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification4_spec__1_~tmp~4#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~11#1;havoc getWaterLevel_~retValue_acc~11#1;getWaterLevel_~retValue_acc~11#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~11#1; 667#L984-2 assume true;__utac_acc__Specification4_spec__1_#t~ret29#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~11#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~4#1 := __utac_acc__Specification4_spec__1_#t~ret29#1;havoc __utac_acc__Specification4_spec__1_#t~ret29#1; 765#L566-2 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~4#1); 675#L580-2 assume true;havoc __utac_acc__Specification4_spec__1_#t~ret29#1, __utac_acc__Specification4_spec__1_#t~ret30#1, __utac_acc__Specification4_spec__1_~tmp~4#1, __utac_acc__Specification4_spec__1_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification4_spec__1 } true; 676#L626-2 assume true;assume { :end_inline_timeShift } true; 787#L850 [2024-11-17 08:48:14,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:48:14,905 INFO L85 PathProgramCache]: Analyzing trace with hash -1584744651, now seen corresponding path program 2 times [2024-11-17 08:48:14,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:48:14,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791489744] [2024-11-17 08:48:14,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:48:14,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:48:14,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:48:14,912 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:48:14,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:48:14,917 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:48:14,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:48:14,918 INFO L85 PathProgramCache]: Analyzing trace with hash -1929797013, now seen corresponding path program 1 times [2024-11-17 08:48:14,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:48:14,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234204329] [2024-11-17 08:48:14,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:48:14,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:48:14,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:48:14,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:48:14,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 08:48:14,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234204329] [2024-11-17 08:48:14,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234204329] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 08:48:14,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 08:48:14,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 08:48:14,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350862563] [2024-11-17 08:48:14,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 08:48:14,947 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-17 08:48:14,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 08:48:14,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 08:48:14,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 08:48:14,948 INFO L87 Difference]: Start difference. First operand 232 states and 307 transitions. cyclomatic complexity: 78 Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:48:15,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 08:48:15,003 INFO L93 Difference]: Finished difference Result 290 states and 366 transitions. [2024-11-17 08:48:15,004 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 290 states and 366 transitions. [2024-11-17 08:48:15,005 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 208 [2024-11-17 08:48:15,007 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 290 states to 290 states and 366 transitions. [2024-11-17 08:48:15,007 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 290 [2024-11-17 08:48:15,007 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 290 [2024-11-17 08:48:15,007 INFO L73 IsDeterministic]: Start isDeterministic. Operand 290 states and 366 transitions. [2024-11-17 08:48:15,008 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-17 08:48:15,008 INFO L218 hiAutomatonCegarLoop]: Abstraction has 290 states and 366 transitions. [2024-11-17 08:48:15,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states and 366 transitions. [2024-11-17 08:48:15,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 290. [2024-11-17 08:48:15,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 290 states have (on average 1.2620689655172415) internal successors, (366), 289 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:48:15,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 366 transitions. [2024-11-17 08:48:15,016 INFO L240 hiAutomatonCegarLoop]: Abstraction has 290 states and 366 transitions. [2024-11-17 08:48:15,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 08:48:15,017 INFO L425 stractBuchiCegarLoop]: Abstraction has 290 states and 366 transitions. [2024-11-17 08:48:15,017 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-17 08:48:15,018 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 290 states and 366 transitions. [2024-11-17 08:48:15,019 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 208 [2024-11-17 08:48:15,019 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:48:15,019 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:48:15,020 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:48:15,020 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:48:15,020 INFO L745 eck$LassoCheckResult]: Stem: 1368#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);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 1252#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret5#1, main_~retValue_acc~2#1, main_~tmp~0#1;havoc main_~retValue_acc~2#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 1253#L75 assume true;assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1315#L68 assume true;assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 1238#L83 assume true;main_#t~ret5#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret5#1;havoc main_#t~ret5#1; 1182#L175 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 1183#L151 assume true;assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet45#1, test_#t~nondet46#1, test_#t~nondet47#1, test_#t~nondet48#1, test_~splverifierCounter~0#1, test_~tmp~10#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~10#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1317#L850 [2024-11-17 08:48:15,020 INFO L747 eck$LassoCheckResult]: Loop: 1317#L850 assume true; 1287#L850-1 assume !false; 1288#test_while_4_continue#1 assume true; 1213#L852 assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet45#1;test_~tmp~10#1 := test_#t~nondet45#1;havoc test_#t~nondet45#1; 1215#L860 assume !(0 != test_~tmp~10#1); 1254#L868 havoc test_#t~nondet46#1;test_~tmp___0~3#1 := test_#t~nondet46#1;havoc test_#t~nondet46#1; 1255#L870 assume !(0 != test_~tmp___0~3#1); 1189#L878 havoc test_#t~nondet47#1;test_~tmp___2~0#1 := test_#t~nondet47#1;havoc test_#t~nondet47#1; 1297#L880 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 1218#L836 assume true;assume { :end_inline_startSystem } true; 1194#L897 assume { :begin_inline_timeShift } true; 1195#L609-2 assume !(0 != ~pumpRunning~0); 1367#L616-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret32#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 1313#L667-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret31#1, processEnvironment__wrappee__highWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5#1; 1239#L641-5 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret43#1, isHighWaterLevel_~retValue_acc~8#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~8#1;havoc isHighWaterLevel_~tmp~8#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~12#1;havoc isHighWaterSensorDry_~retValue_acc~12#1; 1240#L992-5 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~12#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~12#1; 1330#L997-5 assume true;isHighWaterLevel_#t~ret43#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~12#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8#1 := isHighWaterLevel_#t~ret43#1;havoc isHighWaterLevel_#t~ret43#1; 1289#L787-5 assume 0 != isHighWaterLevel_~tmp~8#1;isHighWaterLevel_~tmp___0~1#1 := 0; 1184#L792-5 isHighWaterLevel_~retValue_acc~8#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~8#1; 1185#L793-5 assume true;processEnvironment__wrappee__highWaterSensor_#t~ret31#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret43#1, isHighWaterLevel_~retValue_acc~8#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~5#1 := processEnvironment__wrappee__highWaterSensor_#t~ret31#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret31#1; 1235#L645-5 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1237#L633-10 assume true;assume { :end_inline_processEnvironment__wrappee__base } true; 1191#L659-5 assume true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret31#1, processEnvironment__wrappee__highWaterSensor_~tmp~5#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1250#L685-2 assume true;havoc processEnvironment_#t~ret32#1, processEnvironment_~tmp~6#1;assume { :end_inline_processEnvironment } true; 1375#L624-2 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret29#1, __utac_acc__Specification4_spec__1_#t~ret30#1, __utac_acc__Specification4_spec__1_~tmp~4#1, __utac_acc__Specification4_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification4_spec__1_~tmp~4#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~11#1;havoc getWaterLevel_~retValue_acc~11#1;getWaterLevel_~retValue_acc~11#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~11#1; 1444#L984-2 assume true;__utac_acc__Specification4_spec__1_#t~ret29#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~11#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~4#1 := __utac_acc__Specification4_spec__1_#t~ret29#1;havoc __utac_acc__Specification4_spec__1_#t~ret29#1; 1442#L566-2 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~4#1); 1440#L580-2 assume true;havoc __utac_acc__Specification4_spec__1_#t~ret29#1, __utac_acc__Specification4_spec__1_#t~ret30#1, __utac_acc__Specification4_spec__1_~tmp~4#1, __utac_acc__Specification4_spec__1_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification4_spec__1 } true; 1316#L626-2 assume true;assume { :end_inline_timeShift } true; 1317#L850 [2024-11-17 08:48:15,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:48:15,021 INFO L85 PathProgramCache]: Analyzing trace with hash -1584744651, now seen corresponding path program 3 times [2024-11-17 08:48:15,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:48:15,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103762051] [2024-11-17 08:48:15,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:48:15,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:48:15,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:48:15,027 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:48:15,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:48:15,032 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:48:15,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:48:15,032 INFO L85 PathProgramCache]: Analyzing trace with hash -1875933516, now seen corresponding path program 1 times [2024-11-17 08:48:15,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:48:15,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189069561] [2024-11-17 08:48:15,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:48:15,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:48:15,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:48:15,040 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:48:15,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:48:15,047 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:48:15,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:48:15,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1532556288, now seen corresponding path program 1 times [2024-11-17 08:48:15,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:48:15,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202139468] [2024-11-17 08:48:15,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:48:15,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:48:15,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:48:15,056 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:48:15,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:48:15,064 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:48:15,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:48:15,747 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:48:15,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:48:15,793 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 17.11 08:48:15 BoogieIcfgContainer [2024-11-17 08:48:15,793 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-17 08:48:15,793 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-17 08:48:15,794 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-17 08:48:15,794 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-17 08:48:15,794 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 08:48:14" (3/4) ... [2024-11-17 08:48:15,797 INFO L140 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-17 08:48:15,837 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-17 08:48:15,838 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-17 08:48:15,838 INFO L158 Benchmark]: Toolchain (without parser) took 3228.93ms. Allocated memory was 151.0MB in the beginning and 234.9MB in the end (delta: 83.9MB). Free memory was 93.0MB in the beginning and 148.6MB in the end (delta: -55.7MB). Peak memory consumption was 30.3MB. Max. memory is 16.1GB. [2024-11-17 08:48:15,838 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 151.0MB. Free memory is still 110.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 08:48:15,839 INFO L158 Benchmark]: CACSL2BoogieTranslator took 444.18ms. Allocated memory is still 151.0MB. Free memory was 92.6MB in the beginning and 71.1MB in the end (delta: 21.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-17 08:48:15,839 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.11ms. Allocated memory is still 151.0MB. Free memory was 70.8MB in the beginning and 67.4MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-17 08:48:15,839 INFO L158 Benchmark]: Boogie Preprocessor took 70.33ms. Allocated memory is still 151.0MB. Free memory was 67.4MB in the beginning and 63.9MB in the end (delta: 3.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 08:48:15,839 INFO L158 Benchmark]: IcfgBuilder took 968.72ms. Allocated memory is still 151.0MB. Free memory was 63.9MB in the beginning and 85.0MB in the end (delta: -21.1MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. [2024-11-17 08:48:15,840 INFO L158 Benchmark]: BuchiAutomizer took 1628.24ms. Allocated memory was 151.0MB in the beginning and 234.9MB in the end (delta: 83.9MB). Free memory was 84.4MB in the beginning and 151.8MB in the end (delta: -67.4MB). Peak memory consumption was 19.7MB. Max. memory is 16.1GB. [2024-11-17 08:48:15,843 INFO L158 Benchmark]: Witness Printer took 44.32ms. Allocated memory is still 234.9MB. Free memory was 151.8MB in the beginning and 148.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 08:48:15,844 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 151.0MB. Free memory is still 110.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 444.18ms. Allocated memory is still 151.0MB. Free memory was 92.6MB in the beginning and 71.1MB in the end (delta: 21.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.11ms. Allocated memory is still 151.0MB. Free memory was 70.8MB in the beginning and 67.4MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 70.33ms. Allocated memory is still 151.0MB. Free memory was 67.4MB in the beginning and 63.9MB in the end (delta: 3.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 968.72ms. Allocated memory is still 151.0MB. Free memory was 63.9MB in the beginning and 85.0MB in the end (delta: -21.1MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 1628.24ms. Allocated memory was 151.0MB in the beginning and 234.9MB in the end (delta: 83.9MB). Free memory was 84.4MB in the beginning and 151.8MB in the end (delta: -67.4MB). Peak memory consumption was 19.7MB. Max. memory is 16.1GB. * Witness Printer took 44.32ms. Allocated memory is still 234.9MB. Free memory was 151.8MB in the beginning and 148.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] - GenericResultAtLocation [Line: 87]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [87] - GenericResultAtLocation [Line: 188]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [188] - GenericResultAtLocation [Line: 554]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [554] - GenericResultAtLocation [Line: 583]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [583] - GenericResultAtLocation [Line: 592]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [592] - GenericResultAtLocation [Line: 839]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [839] - GenericResultAtLocation [Line: 908]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [908] * 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 290 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.5s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 173 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, 632 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 632 mSDsluCounter, 1461 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 986 mSDsCounter, 34 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 73 IncrementalHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 34 mSolverCounterUnsat, 475 mSDtfsCounter, 73 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 850]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L88] int cleanupTimeShifts = 4; [L358] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L602] int pumpRunning = 0; [L603] int systemActive = 1; [L909] int waterLevel = 1; [L910] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L166] int retValue_acc ; [L167] int tmp ; [L171] FCALL select_helpers() [L172] FCALL select_features() [L173] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L173] RET, EXPR valid_product() [L173] tmp = valid_product() [L175] COND TRUE \read(tmp) [L177] FCALL setup() [L178] CALL runTest() [L160] CALL test() [L841] int splverifierCounter ; [L842] int tmp ; [L843] int tmp___0 ; [L844] int tmp___1 ; [L845] int tmp___2 ; [L848] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L850] COND TRUE 1 [L852] COND TRUE splverifierCounter < 4 [L858] tmp = __VERIFIER_nondet_int() [L860] COND FALSE !(\read(tmp)) [L868] tmp___0 = __VERIFIER_nondet_int() [L870] COND FALSE !(\read(tmp___0)) [L878] tmp___2 = __VERIFIER_nondet_int() [L880] COND TRUE \read(tmp___2) [L882] CALL startSystem() [L835] systemActive = 1 [L882] RET startSystem() [L897] CALL timeShift() [L609] COND FALSE !(\read(pumpRunning)) [L616] COND TRUE \read(systemActive) [L618] CALL processEnvironment() [L664] int tmp ; [L667] COND FALSE !(\read(pumpRunning)) [L682] CALL processEnvironment__wrappee__highWaterSensor() [L638] int tmp ; [L641] COND TRUE ! pumpRunning [L643] CALL, EXPR isHighWaterLevel() [L779] int retValue_acc ; [L780] int tmp ; [L781] int tmp___0 ; [L785] CALL, EXPR isHighWaterSensorDry() [L989] int retValue_acc ; [L992] COND TRUE waterLevel < 2 [L993] retValue_acc = 1 [L994] return (retValue_acc); [L785] RET, EXPR isHighWaterSensorDry() [L785] tmp = isHighWaterSensorDry() [L787] COND TRUE \read(tmp) [L788] tmp___0 = 0 [L792] retValue_acc = tmp___0 [L793] return (retValue_acc); [L643] RET, EXPR isHighWaterLevel() [L643] tmp = isHighWaterLevel() [L645] COND FALSE !(\read(tmp)) [L651] FCALL processEnvironment__wrappee__base() [L682] RET processEnvironment__wrappee__highWaterSensor() [L618] RET processEnvironment() [L624] CALL __utac_acc__Specification4_spec__1() [L559] int tmp ; [L560] int tmp___0 ; [L564] CALL, EXPR getWaterLevel() [L980] int retValue_acc ; [L983] retValue_acc = waterLevel [L984] return (retValue_acc); [L564] RET, EXPR getWaterLevel() [L564] tmp = getWaterLevel() [L566] COND FALSE !(tmp == 0) [L624] RET __utac_acc__Specification4_spec__1() [L897] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 850]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L88] int cleanupTimeShifts = 4; [L358] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L602] int pumpRunning = 0; [L603] int systemActive = 1; [L909] int waterLevel = 1; [L910] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L166] int retValue_acc ; [L167] int tmp ; [L171] FCALL select_helpers() [L172] FCALL select_features() [L173] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L173] RET, EXPR valid_product() [L173] tmp = valid_product() [L175] COND TRUE \read(tmp) [L177] FCALL setup() [L178] CALL runTest() [L160] CALL test() [L841] int splverifierCounter ; [L842] int tmp ; [L843] int tmp___0 ; [L844] int tmp___1 ; [L845] int tmp___2 ; [L848] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L850] COND TRUE 1 [L852] COND TRUE splverifierCounter < 4 [L858] tmp = __VERIFIER_nondet_int() [L860] COND FALSE !(\read(tmp)) [L868] tmp___0 = __VERIFIER_nondet_int() [L870] COND FALSE !(\read(tmp___0)) [L878] tmp___2 = __VERIFIER_nondet_int() [L880] COND TRUE \read(tmp___2) [L882] CALL startSystem() [L835] systemActive = 1 [L882] RET startSystem() [L897] CALL timeShift() [L609] COND FALSE !(\read(pumpRunning)) [L616] COND TRUE \read(systemActive) [L618] CALL processEnvironment() [L664] int tmp ; [L667] COND FALSE !(\read(pumpRunning)) [L682] CALL processEnvironment__wrappee__highWaterSensor() [L638] int tmp ; [L641] COND TRUE ! pumpRunning [L643] CALL, EXPR isHighWaterLevel() [L779] int retValue_acc ; [L780] int tmp ; [L781] int tmp___0 ; [L785] CALL, EXPR isHighWaterSensorDry() [L989] int retValue_acc ; [L992] COND TRUE waterLevel < 2 [L993] retValue_acc = 1 [L994] return (retValue_acc); [L785] RET, EXPR isHighWaterSensorDry() [L785] tmp = isHighWaterSensorDry() [L787] COND TRUE \read(tmp) [L788] tmp___0 = 0 [L792] retValue_acc = tmp___0 [L793] return (retValue_acc); [L643] RET, EXPR isHighWaterLevel() [L643] tmp = isHighWaterLevel() [L645] COND FALSE !(\read(tmp)) [L651] FCALL processEnvironment__wrappee__base() [L682] RET processEnvironment__wrappee__highWaterSensor() [L618] RET processEnvironment() [L624] CALL __utac_acc__Specification4_spec__1() [L559] int tmp ; [L560] int tmp___0 ; [L564] CALL, EXPR getWaterLevel() [L980] int retValue_acc ; [L983] retValue_acc = waterLevel [L984] return (retValue_acc); [L564] RET, EXPR getWaterLevel() [L564] tmp = getWaterLevel() [L566] COND FALSE !(tmp == 0) [L624] RET __utac_acc__Specification4_spec__1() [L897] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-17 08:48:15,876 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)