./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product51.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.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_spec1_product51.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 311cf727219391e066955da60e9a83cfca77eaf7b53c342c6934d47c5123e76f --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 16:14:58,131 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 16:14:58,186 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2025-03-04 16:14:58,191 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 16:14:58,191 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 16:14:58,191 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2025-03-04 16:14:58,214 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 16:14:58,214 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 16:14:58,214 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 16:14:58,215 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 16:14:58,216 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 16:14:58,216 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 16:14:58,217 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 16:14:58,217 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 16:14:58,217 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-03-04 16:14:58,217 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-03-04 16:14:58,217 INFO L153 SettingsManager]: * Use old map elimination=false [2025-03-04 16:14:58,217 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-03-04 16:14:58,217 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-03-04 16:14:58,218 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-03-04 16:14:58,218 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 16:14:58,218 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-03-04 16:14:58,218 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 16:14:58,218 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 16:14:58,218 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 16:14:58,218 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 16:14:58,218 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-03-04 16:14:58,218 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-03-04 16:14:58,218 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-03-04 16:14:58,218 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 16:14:58,218 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 16:14:58,218 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 16:14:58,218 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-03-04 16:14:58,218 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 16:14:58,218 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 16:14:58,219 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 16:14:58,219 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 16:14:58,219 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 16:14:58,219 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 16:14:58,219 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-03-04 16:14:58,219 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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 -> 311cf727219391e066955da60e9a83cfca77eaf7b53c342c6934d47c5123e76f [2025-03-04 16:14:58,459 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 16:14:58,467 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 16:14:58,468 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 16:14:58,472 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 16:14:58,472 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 16:14:58,473 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product51.cil.c [2025-03-04 16:14:59,697 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0dd257a1c/1263678c18ca4cca82ccb9eb9c359ea1/FLAG8d5c120c3 [2025-03-04 16:14:59,932 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 16:14:59,933 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product51.cil.c [2025-03-04 16:14:59,944 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0dd257a1c/1263678c18ca4cca82ccb9eb9c359ea1/FLAG8d5c120c3 [2025-03-04 16:15:00,259 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0dd257a1c/1263678c18ca4cca82ccb9eb9c359ea1 [2025-03-04 16:15:00,261 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 16:15:00,262 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 16:15:00,263 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 16:15:00,263 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 16:15:00,265 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 16:15:00,266 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 04:15:00" (1/1) ... [2025-03-04 16:15:00,268 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fcfe9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:15:00, skipping insertion in model container [2025-03-04 16:15:00,268 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 04:15:00" (1/1) ... [2025-03-04 16:15:00,293 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 16:15:00,459 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 16:15:00,471 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 16:15:00,477 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [49] [2025-03-04 16:15:00,478 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [121] [2025-03-04 16:15:00,478 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [343] [2025-03-04 16:15:00,478 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [709] [2025-03-04 16:15:00,478 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [718] [2025-03-04 16:15:00,478 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [756] [2025-03-04 16:15:00,479 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [782] [2025-03-04 16:15:00,479 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [878] [2025-03-04 16:15:00,525 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 16:15:00,540 INFO L204 MainTranslator]: Completed translation [2025-03-04 16:15:00,541 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:15:00 WrapperNode [2025-03-04 16:15:00,541 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 16:15:00,542 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 16:15:00,542 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 16:15:00,542 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 16:15:00,546 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:15:00" (1/1) ... [2025-03-04 16:15:00,554 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:15:00" (1/1) ... [2025-03-04 16:15:00,573 INFO L138 Inliner]: procedures = 56, calls = 101, calls flagged for inlining = 54, calls inlined = 82, statements flattened = 550 [2025-03-04 16:15:00,574 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 16:15:00,574 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 16:15:00,574 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 16:15:00,574 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 16:15:00,581 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:15:00" (1/1) ... [2025-03-04 16:15:00,582 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:15:00" (1/1) ... [2025-03-04 16:15:00,584 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:15:00" (1/1) ... [2025-03-04 16:15:00,602 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]. [2025-03-04 16:15:00,603 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:15:00" (1/1) ... [2025-03-04 16:15:00,603 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:15:00" (1/1) ... [2025-03-04 16:15:00,608 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:15:00" (1/1) ... [2025-03-04 16:15:00,609 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:15:00" (1/1) ... [2025-03-04 16:15:00,610 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:15:00" (1/1) ... [2025-03-04 16:15:00,611 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:15:00" (1/1) ... [2025-03-04 16:15:00,612 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 16:15:00,613 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 16:15:00,613 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 16:15:00,613 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 16:15:00,614 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:15:00" (1/1) ... [2025-03-04 16:15:00,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 16:15:00,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 16:15:00,651 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) [2025-03-04 16:15:00,654 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 [2025-03-04 16:15:00,673 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 16:15:00,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 16:15:00,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 16:15:00,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 16:15:00,735 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 16:15:00,737 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 16:15:01,149 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L251-1: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; [2025-03-04 16:15:01,149 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L251-3: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; [2025-03-04 16:15:01,149 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L251-5: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; [2025-03-04 16:15:01,149 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L979-1: isLowWaterSensorDry_#res#1 := isLowWaterSensorDry_~retValue_acc~13#1; [2025-03-04 16:15:01,149 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L979-3: isLowWaterSensorDry_#res#1 := isLowWaterSensorDry_~retValue_acc~13#1; [2025-03-04 16:15:01,149 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L979-5: isLowWaterSensorDry_#res#1 := isLowWaterSensorDry_~retValue_acc~13#1; [2025-03-04 16:15:01,149 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L306-1: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; [2025-03-04 16:15:01,149 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L306-3: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; [2025-03-04 16:15:01,149 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L306-5: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; [2025-03-04 16:15:01,149 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L306-7: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; [2025-03-04 16:15:01,149 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L306-9: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; [2025-03-04 16:15:01,149 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L306-11: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; [2025-03-04 16:15:01,149 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L753-1: valid_product_#res#1 := valid_product_~retValue_acc~8#1; [2025-03-04 16:15:01,149 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L325-1: isLowWaterLevel_#res#1 := isLowWaterLevel_~retValue_acc~3#1; [2025-03-04 16:15:01,149 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L325-3: isLowWaterLevel_#res#1 := isLowWaterLevel_~retValue_acc~3#1; [2025-03-04 16:15:01,149 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L325-5: isLowWaterLevel_#res#1 := isLowWaterLevel_~retValue_acc~3#1; [2025-03-04 16:15:01,150 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L970-1: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~12#1; [2025-03-04 16:15:01,150 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L970-3: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~12#1; [2025-03-04 16:15:01,150 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L970-5: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~12#1; [2025-03-04 16:15:01,150 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L970-7: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~12#1; [2025-03-04 16:15:01,150 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L970-9: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~12#1; [2025-03-04 16:15:01,150 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L970-11: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~12#1; [2025-03-04 16:15:01,150 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L924-1: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~10#1; [2025-03-04 16:15:01,150 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L924-3: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~10#1; [2025-03-04 16:15:01,150 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L924-5: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~10#1; [2025-03-04 16:15:01,150 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L875-1: main_#res#1 := main_~retValue_acc~9#1; [2025-03-04 16:15:01,174 INFO L? ?]: Removed 130 outVars from TransFormulas that were not future-live. [2025-03-04 16:15:01,175 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 16:15:01,190 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 16:15:01,191 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 16:15:01,192 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 04:15:01 BoogieIcfgContainer [2025-03-04 16:15:01,193 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 16:15:01,193 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-03-04 16:15:01,193 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-03-04 16:15:01,197 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-03-04 16:15:01,198 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-04 16:15:01,198 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 04.03 04:15:00" (1/3) ... [2025-03-04 16:15:01,200 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1a22270a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 04.03 04:15:01, skipping insertion in model container [2025-03-04 16:15:01,200 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-04 16:15:01,200 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:15:00" (2/3) ... [2025-03-04 16:15:01,200 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1a22270a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 04.03 04:15:01, skipping insertion in model container [2025-03-04 16:15:01,200 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-04 16:15:01,200 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 04:15:01" (3/3) ... [2025-03-04 16:15:01,201 INFO L363 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product51.cil.c [2025-03-04 16:15:01,242 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-03-04 16:15:01,242 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-03-04 16:15:01,242 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-03-04 16:15:01,242 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-03-04 16:15:01,242 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-03-04 16:15:01,243 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-03-04 16:15:01,243 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-03-04 16:15:01,243 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-03-04 16:15:01,249 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 167 states, 166 states have (on average 1.3614457831325302) internal successors, (226), 166 states have internal predecessors, (226), 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) [2025-03-04 16:15:01,268 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 108 [2025-03-04 16:15:01,268 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-04 16:15:01,268 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-04 16:15:01,275 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-04 16:15:01,275 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 16:15:01,275 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-03-04 16:15:01,277 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 167 states, 166 states have (on average 1.3614457831325302) internal successors, (226), 166 states have internal predecessors, (226), 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) [2025-03-04 16:15:01,284 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 108 [2025-03-04 16:15:01,284 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-04 16:15:01,284 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-04 16:15:01,284 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-04 16:15:01,284 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 16:15:01,291 INFO L752 eck$LassoCheckResult]: Stem: "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;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret47#1, main_~retValue_acc~9#1, main_~tmp~9#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1;" "main_#t~ret47#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret47#1;havoc main_#t~ret47#1;" "assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2025-03-04 16:15:01,292 INFO L754 eck$LassoCheckResult]: Loop: "assume true;" "assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet4#1;test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1;" "assume !(0 != test_~tmp~0#1);" "havoc test_#t~nondet5#1;test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1;" "assume !(0 != test_~tmp___0~0#1);" "havoc test_#t~nondet6#1;test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1;" "assume 0 != test_~tmp___2~0#1;" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume !(0 != ~systemActive~0);" "assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret45#1, __utac_acc__Specification1_spec__1_#t~ret46#1, __utac_acc__Specification1_spec__1_~tmp~8#1, __utac_acc__Specification1_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification1_spec__1_~tmp~8#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;isMethaneLevelCritical_~retValue_acc~10#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~10#1;" "__utac_acc__Specification1_spec__1_#t~ret45#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~8#1 := __utac_acc__Specification1_spec__1_#t~ret45#1;havoc __utac_acc__Specification1_spec__1_#t~ret45#1;" "assume !(0 != __utac_acc__Specification1_spec__1_~tmp~8#1);" "havoc __utac_acc__Specification1_spec__1_#t~ret45#1, __utac_acc__Specification1_spec__1_#t~ret46#1, __utac_acc__Specification1_spec__1_~tmp~8#1, __utac_acc__Specification1_spec__1_~tmp___0~3#1;assume { :end_inline___utac_acc__Specification1_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2025-03-04 16:15:01,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:15:01,296 INFO L85 PathProgramCache]: Analyzing trace with hash -1937271579, now seen corresponding path program 1 times [2025-03-04 16:15:01,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:15:01,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738643825] [2025-03-04 16:15:01,306 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:15:01,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:15:01,355 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-04 16:15:01,367 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 16:15:01,368 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:15:01,369 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:15:01,369 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:15:01,372 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-04 16:15:01,383 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 16:15:01,386 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:15:01,387 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:15:01,404 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:15:01,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:15:01,421 INFO L85 PathProgramCache]: Analyzing trace with hash -2092967958, now seen corresponding path program 1 times [2025-03-04 16:15:01,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:15:01,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336262354] [2025-03-04 16:15:01,421 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:15:01,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:15:01,427 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-04 16:15:01,430 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-04 16:15:01,432 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:15:01,432 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:15:01,432 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:15:01,434 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-04 16:15:01,435 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-04 16:15:01,435 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:15:01,435 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:15:01,440 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:15:01,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:15:01,443 INFO L85 PathProgramCache]: Analyzing trace with hash -1308139898, now seen corresponding path program 1 times [2025-03-04 16:15:01,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:15:01,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3423739] [2025-03-04 16:15:01,443 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:15:01,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:15:01,450 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-04 16:15:01,462 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-04 16:15:01,463 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:15:01,463 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 16:15:01,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 16:15:01,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 16:15:01,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3423739] [2025-03-04 16:15:01,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3423739] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 16:15:01,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 16:15:01,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 16:15:01,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790070068] [2025-03-04 16:15:01,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 16:15:01,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 16:15:01,670 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 16:15:01,671 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 16:15:01,673 INFO L87 Difference]: Start difference. First operand has 167 states, 166 states have (on average 1.3614457831325302) internal successors, (226), 166 states have internal predecessors, (226), 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 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 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) [2025-03-04 16:15:01,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 16:15:01,732 INFO L93 Difference]: Finished difference Result 314 states and 418 transitions. [2025-03-04 16:15:01,733 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 314 states and 418 transitions. [2025-03-04 16:15:01,739 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 200 [2025-03-04 16:15:01,748 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 314 states to 294 states and 397 transitions. [2025-03-04 16:15:01,749 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 294 [2025-03-04 16:15:01,750 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 294 [2025-03-04 16:15:01,750 INFO L73 IsDeterministic]: Start isDeterministic. Operand 294 states and 397 transitions. [2025-03-04 16:15:01,752 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-03-04 16:15:01,752 INFO L218 hiAutomatonCegarLoop]: Abstraction has 294 states and 397 transitions. [2025-03-04 16:15:01,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states and 397 transitions. [2025-03-04 16:15:01,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 291. [2025-03-04 16:15:01,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 291 states have (on average 1.3505154639175259) internal successors, (393), 290 states have internal predecessors, (393), 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) [2025-03-04 16:15:01,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 393 transitions. [2025-03-04 16:15:01,780 INFO L240 hiAutomatonCegarLoop]: Abstraction has 291 states and 393 transitions. [2025-03-04 16:15:01,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 16:15:01,783 INFO L432 stractBuchiCegarLoop]: Abstraction has 291 states and 393 transitions. [2025-03-04 16:15:01,783 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-03-04 16:15:01,783 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 291 states and 393 transitions. [2025-03-04 16:15:01,785 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 200 [2025-03-04 16:15:01,785 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-04 16:15:01,785 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-04 16:15:01,786 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-04 16:15:01,786 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] [2025-03-04 16:15:01,786 INFO L752 eck$LassoCheckResult]: Stem: "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;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret47#1, main_~retValue_acc~9#1, main_~tmp~9#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1;" "main_#t~ret47#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret47#1;havoc main_#t~ret47#1;" "assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2025-03-04 16:15:01,786 INFO L754 eck$LassoCheckResult]: Loop: "assume true;" "assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet4#1;test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1;" "assume !(0 != test_~tmp~0#1);" "havoc test_#t~nondet5#1;test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1;" "assume !(0 != test_~tmp___0~0#1);" "havoc test_#t~nondet6#1;test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1;" "assume 0 != test_~tmp___2~0#1;" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret9#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1;" "assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true;" "havoc processEnvironment_#t~ret9#1, processEnvironment_~tmp~2#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret45#1, __utac_acc__Specification1_spec__1_#t~ret46#1, __utac_acc__Specification1_spec__1_~tmp~8#1, __utac_acc__Specification1_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification1_spec__1_~tmp~8#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;isMethaneLevelCritical_~retValue_acc~10#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~10#1;" "__utac_acc__Specification1_spec__1_#t~ret45#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~8#1 := __utac_acc__Specification1_spec__1_#t~ret45#1;havoc __utac_acc__Specification1_spec__1_#t~ret45#1;" "assume !(0 != __utac_acc__Specification1_spec__1_~tmp~8#1);" "havoc __utac_acc__Specification1_spec__1_#t~ret45#1, __utac_acc__Specification1_spec__1_#t~ret46#1, __utac_acc__Specification1_spec__1_~tmp~8#1, __utac_acc__Specification1_spec__1_~tmp___0~3#1;assume { :end_inline___utac_acc__Specification1_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2025-03-04 16:15:01,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:15:01,786 INFO L85 PathProgramCache]: Analyzing trace with hash -1937271579, now seen corresponding path program 2 times [2025-03-04 16:15:01,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:15:01,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879601590] [2025-03-04 16:15:01,787 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 16:15:01,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:15:01,794 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 7 statements into 1 equivalence classes. [2025-03-04 16:15:01,798 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 16:15:01,798 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 16:15:01,798 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:15:01,798 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:15:01,800 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-04 16:15:01,803 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 16:15:01,803 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:15:01,803 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:15:01,805 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:15:01,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:15:01,806 INFO L85 PathProgramCache]: Analyzing trace with hash -101232250, now seen corresponding path program 1 times [2025-03-04 16:15:01,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:15:01,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399038146] [2025-03-04 16:15:01,806 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:15:01,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:15:01,809 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-03-04 16:15:01,810 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-03-04 16:15:01,810 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:15:01,810 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 16:15:01,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 16:15:01,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 16:15:01,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399038146] [2025-03-04 16:15:01,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399038146] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 16:15:01,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 16:15:01,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 16:15:01,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064076263] [2025-03-04 16:15:01,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 16:15:01,823 INFO L769 eck$LassoCheckResult]: loop already infeasible [2025-03-04 16:15:01,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 16:15:01,823 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 16:15:01,823 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 16:15:01,823 INFO L87 Difference]: Start difference. First operand 291 states and 393 transitions. cyclomatic complexity: 106 Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2025-03-04 16:15:01,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 16:15:01,894 INFO L93 Difference]: Finished difference Result 398 states and 517 transitions. [2025-03-04 16:15:01,894 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 398 states and 517 transitions. [2025-03-04 16:15:01,897 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 281 [2025-03-04 16:15:01,899 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 398 states to 398 states and 517 transitions. [2025-03-04 16:15:01,900 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 398 [2025-03-04 16:15:01,900 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 398 [2025-03-04 16:15:01,900 INFO L73 IsDeterministic]: Start isDeterministic. Operand 398 states and 517 transitions. [2025-03-04 16:15:01,901 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-03-04 16:15:01,901 INFO L218 hiAutomatonCegarLoop]: Abstraction has 398 states and 517 transitions. [2025-03-04 16:15:01,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states and 517 transitions. [2025-03-04 16:15:01,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 398. [2025-03-04 16:15:01,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 398 states have (on average 1.2989949748743719) internal successors, (517), 397 states have internal predecessors, (517), 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) [2025-03-04 16:15:01,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 517 transitions. [2025-03-04 16:15:01,914 INFO L240 hiAutomatonCegarLoop]: Abstraction has 398 states and 517 transitions. [2025-03-04 16:15:01,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 16:15:01,915 INFO L432 stractBuchiCegarLoop]: Abstraction has 398 states and 517 transitions. [2025-03-04 16:15:01,915 INFO L338 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-03-04 16:15:01,915 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 398 states and 517 transitions. [2025-03-04 16:15:01,918 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 281 [2025-03-04 16:15:01,918 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-04 16:15:01,918 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-04 16:15:01,918 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-04 16:15:01,918 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] [2025-03-04 16:15:01,919 INFO L752 eck$LassoCheckResult]: Stem: "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;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret47#1, main_~retValue_acc~9#1, main_~tmp~9#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1;" "main_#t~ret47#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret47#1;havoc main_#t~ret47#1;" "assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2025-03-04 16:15:01,919 INFO L754 eck$LassoCheckResult]: Loop: "assume true;" "assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet4#1;test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1;" "assume !(0 != test_~tmp~0#1);" "havoc test_#t~nondet5#1;test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1;" "assume !(0 != test_~tmp___0~0#1);" "havoc test_#t~nondet6#1;test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1;" "assume 0 != test_~tmp___2~0#1;" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret9#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1;" "assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret19#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~3#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~3#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;" "assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~12#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~12#1;" "isHighWaterLevel_#t~ret19#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~12#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~3#1 := isHighWaterLevel_#t~ret19#1;havoc isHighWaterLevel_#t~ret19#1;" "assume 0 != isHighWaterLevel_~tmp~3#1;isHighWaterLevel_~tmp___0~1#1 := 0;" "isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1;" "processEnvironment__wrappee__highWaterSensor_#t~ret8#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret19#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~3#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret8#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1;" "assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true;" "havoc processEnvironment_#t~ret9#1, processEnvironment_~tmp~2#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret45#1, __utac_acc__Specification1_spec__1_#t~ret46#1, __utac_acc__Specification1_spec__1_~tmp~8#1, __utac_acc__Specification1_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification1_spec__1_~tmp~8#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;isMethaneLevelCritical_~retValue_acc~10#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~10#1;" "__utac_acc__Specification1_spec__1_#t~ret45#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~8#1 := __utac_acc__Specification1_spec__1_#t~ret45#1;havoc __utac_acc__Specification1_spec__1_#t~ret45#1;" "assume !(0 != __utac_acc__Specification1_spec__1_~tmp~8#1);" "havoc __utac_acc__Specification1_spec__1_#t~ret45#1, __utac_acc__Specification1_spec__1_#t~ret46#1, __utac_acc__Specification1_spec__1_~tmp~8#1, __utac_acc__Specification1_spec__1_~tmp___0~3#1;assume { :end_inline___utac_acc__Specification1_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2025-03-04 16:15:01,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:15:01,919 INFO L85 PathProgramCache]: Analyzing trace with hash -1937271579, now seen corresponding path program 3 times [2025-03-04 16:15:01,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:15:01,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995472685] [2025-03-04 16:15:01,919 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 16:15:01,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:15:01,923 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 7 statements into 1 equivalence classes. [2025-03-04 16:15:01,930 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 16:15:01,930 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-04 16:15:01,930 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:15:01,930 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:15:01,932 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-04 16:15:01,935 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 16:15:01,935 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:15:01,935 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:15:01,937 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:15:01,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:15:01,938 INFO L85 PathProgramCache]: Analyzing trace with hash 1188551279, now seen corresponding path program 1 times [2025-03-04 16:15:01,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:15:01,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584878931] [2025-03-04 16:15:01,938 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:15:01,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:15:01,942 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-03-04 16:15:01,950 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-03-04 16:15:01,951 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:15:01,951 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:15:01,951 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:15:01,953 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-03-04 16:15:01,956 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-03-04 16:15:01,956 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:15:01,956 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:15:01,958 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:15:01,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:15:01,958 INFO L85 PathProgramCache]: Analyzing trace with hash -1837016493, now seen corresponding path program 1 times [2025-03-04 16:15:01,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:15:01,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841456310] [2025-03-04 16:15:01,958 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:15:01,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:15:01,963 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-03-04 16:15:01,970 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-03-04 16:15:01,971 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:15:01,971 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:15:01,971 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:15:01,973 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-03-04 16:15:01,979 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-03-04 16:15:01,979 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:15:01,979 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:15:01,983 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:15:02,752 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-04 16:15:02,754 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 16:15:02,754 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:15:02,754 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:15:02,754 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:15:02,760 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-04 16:15:02,763 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 16:15:02,763 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:15:02,763 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:15:02,801 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 04.03 04:15:02 BoogieIcfgContainer [2025-03-04 16:15:02,802 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-03-04 16:15:02,802 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-04 16:15:02,802 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-04 16:15:02,802 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-04 16:15:02,804 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 04:15:01" (3/4) ... [2025-03-04 16:15:02,807 INFO L143 WitnessPrinter]: Generating witness for non-termination counterexample [2025-03-04 16:15:02,840 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-04 16:15:02,843 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-04 16:15:02,844 INFO L158 Benchmark]: Toolchain (without parser) took 2582.36ms. Allocated memory was 142.6MB in the beginning and 419.4MB in the end (delta: 276.8MB). Free memory was 113.7MB in the beginning and 357.9MB in the end (delta: -244.2MB). Peak memory consumption was 31.4MB. Max. memory is 16.1GB. [2025-03-04 16:15:02,844 INFO L158 Benchmark]: CDTParser took 1.19ms. Allocated memory is still 201.3MB. Free memory is still 124.6MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 16:15:02,845 INFO L158 Benchmark]: CACSL2BoogieTranslator took 278.89ms. Allocated memory is still 142.6MB. Free memory was 113.3MB in the beginning and 95.0MB in the end (delta: 18.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-04 16:15:02,845 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.94ms. Allocated memory is still 142.6MB. Free memory was 95.0MB in the beginning and 92.2MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 16:15:02,845 INFO L158 Benchmark]: Boogie Preprocessor took 38.30ms. Allocated memory is still 142.6MB. Free memory was 92.2MB in the beginning and 90.0MB in the end (delta: 2.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 16:15:02,845 INFO L158 Benchmark]: IcfgBuilder took 579.58ms. Allocated memory is still 142.6MB. Free memory was 90.0MB in the beginning and 60.7MB in the end (delta: 29.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-04 16:15:02,845 INFO L158 Benchmark]: BuchiAutomizer took 1608.33ms. Allocated memory was 142.6MB in the beginning and 419.4MB in the end (delta: 276.8MB). Free memory was 60.7MB in the beginning and 361.5MB in the end (delta: -300.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 16:15:02,845 INFO L158 Benchmark]: Witness Printer took 41.43ms. Allocated memory is still 419.4MB. Free memory was 361.5MB in the beginning and 357.9MB in the end (delta: 3.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 16:15:02,846 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.19ms. Allocated memory is still 201.3MB. Free memory is still 124.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 278.89ms. Allocated memory is still 142.6MB. Free memory was 113.3MB in the beginning and 95.0MB in the end (delta: 18.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.94ms. Allocated memory is still 142.6MB. Free memory was 95.0MB in the beginning and 92.2MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 38.30ms. Allocated memory is still 142.6MB. Free memory was 92.2MB in the beginning and 90.0MB in the end (delta: 2.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 579.58ms. Allocated memory is still 142.6MB. Free memory was 90.0MB in the beginning and 60.7MB in the end (delta: 29.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 1608.33ms. Allocated memory was 142.6MB in the beginning and 419.4MB in the end (delta: 276.8MB). Free memory was 60.7MB in the beginning and 361.5MB in the end (delta: -300.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 41.43ms. Allocated memory is still 419.4MB. Free memory was 361.5MB in the beginning and 357.9MB in the end (delta: 3.6MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [49] - GenericResultAtLocation [Line: 121]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [121] - GenericResultAtLocation [Line: 343]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [343] - GenericResultAtLocation [Line: 709]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [709] - GenericResultAtLocation [Line: 718]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [718] - GenericResultAtLocation [Line: 756]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [756] - GenericResultAtLocation [Line: 782]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [782] - GenericResultAtLocation [Line: 878]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [878] * 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 3 locations. The remainder module has 398 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, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 329 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 329 mSDsluCounter, 722 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 296 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 41 IncrementalHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 426 mSDtfsCounter, 41 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: 65]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L131] int pumpRunning = 0; [L132] int systemActive = 1; [L513] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L783] int cleanupTimeShifts = 4; [L880] int waterLevel = 1; [L881] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L856] int retValue_acc ; [L857] int tmp ; [L861] FCALL select_helpers() [L862] FCALL select_features() [L863] CALL, EXPR valid_product() [L748] int retValue_acc ; [L751] retValue_acc = 1 [L752] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L863] RET, EXPR valid_product() [L863] tmp = valid_product() [L865] COND TRUE \read(tmp) [L867] FCALL setup() [L868] CALL runTest() [L850] CALL test() [L56] int splverifierCounter ; [L57] int tmp ; [L58] int tmp___0 ; [L59] int tmp___1 ; [L60] int tmp___2 ; [L63] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L65] COND TRUE 1 [L67] COND TRUE splverifierCounter < 4 [L73] tmp = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp)) [L83] tmp___0 = __VERIFIER_nondet_int() [L85] COND FALSE !(\read(tmp___0)) [L93] tmp___2 = __VERIFIER_nondet_int() [L95] COND TRUE \read(tmp___2) [L110] CALL timeShift() [L139] COND FALSE !(\read(pumpRunning)) [L146] COND TRUE \read(systemActive) [L148] CALL processEnvironment() [L194] int tmp ; [L197] COND FALSE !(\read(pumpRunning)) [L212] CALL processEnvironment__wrappee__highWaterSensor() [L168] int tmp ; [L171] COND TRUE ! pumpRunning [L173] CALL, EXPR isHighWaterLevel() [L291] int retValue_acc ; [L292] int tmp ; [L293] int tmp___0 ; [L297] CALL, EXPR isHighWaterSensorDry() [L960] int retValue_acc ; [L963] COND TRUE waterLevel < 2 [L964] retValue_acc = 1 [L965] return (retValue_acc); [L297] RET, EXPR isHighWaterSensorDry() [L297] tmp = isHighWaterSensorDry() [L299] COND TRUE \read(tmp) [L300] tmp___0 = 0 [L304] retValue_acc = tmp___0 [L305] return (retValue_acc); [L173] RET, EXPR isHighWaterLevel() [L173] tmp = isHighWaterLevel() [L175] COND FALSE !(\read(tmp)) [L181] FCALL processEnvironment__wrappee__base() [L212] RET processEnvironment__wrappee__highWaterSensor() [L148] RET processEnvironment() [L154] CALL __utac_acc__Specification1_spec__1() [L758] int tmp ; [L759] int tmp___0 ; [L763] CALL, EXPR isMethaneLevelCritical() [L919] int retValue_acc ; [L922] retValue_acc = methaneLevelCritical [L923] return (retValue_acc); [L763] RET, EXPR isMethaneLevelCritical() [L763] tmp = isMethaneLevelCritical() [L765] COND FALSE !(\read(tmp)) [L154] RET __utac_acc__Specification1_spec__1() [L110] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 65]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L131] int pumpRunning = 0; [L132] int systemActive = 1; [L513] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L783] int cleanupTimeShifts = 4; [L880] int waterLevel = 1; [L881] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L856] int retValue_acc ; [L857] int tmp ; [L861] FCALL select_helpers() [L862] FCALL select_features() [L863] CALL, EXPR valid_product() [L748] int retValue_acc ; [L751] retValue_acc = 1 [L752] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L863] RET, EXPR valid_product() [L863] tmp = valid_product() [L865] COND TRUE \read(tmp) [L867] FCALL setup() [L868] CALL runTest() [L850] CALL test() [L56] int splverifierCounter ; [L57] int tmp ; [L58] int tmp___0 ; [L59] int tmp___1 ; [L60] int tmp___2 ; [L63] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L65] COND TRUE 1 [L67] COND TRUE splverifierCounter < 4 [L73] tmp = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp)) [L83] tmp___0 = __VERIFIER_nondet_int() [L85] COND FALSE !(\read(tmp___0)) [L93] tmp___2 = __VERIFIER_nondet_int() [L95] COND TRUE \read(tmp___2) [L110] CALL timeShift() [L139] COND FALSE !(\read(pumpRunning)) [L146] COND TRUE \read(systemActive) [L148] CALL processEnvironment() [L194] int tmp ; [L197] COND FALSE !(\read(pumpRunning)) [L212] CALL processEnvironment__wrappee__highWaterSensor() [L168] int tmp ; [L171] COND TRUE ! pumpRunning [L173] CALL, EXPR isHighWaterLevel() [L291] int retValue_acc ; [L292] int tmp ; [L293] int tmp___0 ; [L297] CALL, EXPR isHighWaterSensorDry() [L960] int retValue_acc ; [L963] COND TRUE waterLevel < 2 [L964] retValue_acc = 1 [L965] return (retValue_acc); [L297] RET, EXPR isHighWaterSensorDry() [L297] tmp = isHighWaterSensorDry() [L299] COND TRUE \read(tmp) [L300] tmp___0 = 0 [L304] retValue_acc = tmp___0 [L305] return (retValue_acc); [L173] RET, EXPR isHighWaterLevel() [L173] tmp = isHighWaterLevel() [L175] COND FALSE !(\read(tmp)) [L181] FCALL processEnvironment__wrappee__base() [L212] RET processEnvironment__wrappee__highWaterSensor() [L148] RET processEnvironment() [L154] CALL __utac_acc__Specification1_spec__1() [L758] int tmp ; [L759] int tmp___0 ; [L763] CALL, EXPR isMethaneLevelCritical() [L919] int retValue_acc ; [L922] retValue_acc = methaneLevelCritical [L923] return (retValue_acc); [L763] RET, EXPR isMethaneLevelCritical() [L763] tmp = isMethaneLevelCritical() [L765] COND FALSE !(\read(tmp)) [L154] RET __utac_acc__Specification1_spec__1() [L110] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2025-03-04 16:15:02,865 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)