./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product52.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec3_product52.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e70c7d407828df40e6ca35d99b4a3a65ee0ebef631e767452684b3cd94b17437 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 08:47:22,989 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 08:47:23,062 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-17 08:47:23,068 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 08:47:23,071 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 08:47:23,072 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2024-11-17 08:47:23,100 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 08:47:23,101 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 08:47:23,101 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 08:47:23,102 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 08:47:23,102 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 08:47:23,102 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 08:47:23,103 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 08:47:23,104 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 08:47:23,105 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-17 08:47:23,105 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-17 08:47:23,106 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-17 08:47:23,107 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-17 08:47:23,109 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-17 08:47:23,109 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-17 08:47:23,110 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 08:47:23,111 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-17 08:47:23,111 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 08:47:23,111 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 08:47:23,112 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 08:47:23,112 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 08:47:23,112 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-17 08:47:23,112 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-17 08:47:23,113 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-17 08:47:23,113 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 08:47:23,113 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 08:47:23,113 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 08:47:23,113 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-17 08:47:23,113 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-17 08:47:23,114 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 08:47:23,114 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 08:47:23,115 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 08:47:23,115 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 08:47:23,115 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 08:47:23,116 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-17 08:47:23,116 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e70c7d407828df40e6ca35d99b4a3a65ee0ebef631e767452684b3cd94b17437 [2024-11-17 08:47:23,413 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 08:47:23,437 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 08:47:23,441 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 08:47:23,442 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 08:47:23,442 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 08:47:23,444 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product52.cil.c [2024-11-17 08:47:24,905 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 08:47:25,127 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 08:47:25,128 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product52.cil.c [2024-11-17 08:47:25,141 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f12ca008/a32d6f4c4a814dfe856dcc928329bb41/FLAG4c1e33f28 [2024-11-17 08:47:25,459 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f12ca008/a32d6f4c4a814dfe856dcc928329bb41 [2024-11-17 08:47:25,464 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 08:47:25,466 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 08:47:25,469 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 08:47:25,469 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 08:47:25,475 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 08:47:25,476 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 08:47:25" (1/1) ... [2024-11-17 08:47:25,477 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c3a543f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:47:25, skipping insertion in model container [2024-11-17 08:47:25,477 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 08:47:25" (1/1) ... [2024-11-17 08:47:25,518 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 08:47:25,847 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 08:47:25,863 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 08:47:25,873 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [49] [2024-11-17 08:47:25,875 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [87] [2024-11-17 08:47:25,876 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [196] [2024-11-17 08:47:25,876 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [562] [2024-11-17 08:47:25,876 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [788] [2024-11-17 08:47:25,876 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [858] [2024-11-17 08:47:25,876 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [867] [2024-11-17 08:47:25,877 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [905] [2024-11-17 08:47:25,944 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 08:47:25,967 INFO L204 MainTranslator]: Completed translation [2024-11-17 08:47:25,967 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:47:25 WrapperNode [2024-11-17 08:47:25,967 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 08:47:25,968 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 08:47:25,968 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 08:47:25,969 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 08:47:25,976 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:47:25" (1/1) ... [2024-11-17 08:47:25,987 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:47:25" (1/1) ... [2024-11-17 08:47:26,018 INFO L138 Inliner]: procedures = 57, calls = 103, calls flagged for inlining = 56, calls inlined = 86, statements flattened = 590 [2024-11-17 08:47:26,018 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 08:47:26,018 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 08:47:26,019 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 08:47:26,019 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 08:47:26,029 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:47:25" (1/1) ... [2024-11-17 08:47:26,029 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:47:25" (1/1) ... [2024-11-17 08:47:26,033 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:47:25" (1/1) ... [2024-11-17 08:47:26,064 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 08:47:26,064 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:47:25" (1/1) ... [2024-11-17 08:47:26,064 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:47:25" (1/1) ... [2024-11-17 08:47:26,074 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:47:25" (1/1) ... [2024-11-17 08:47:26,075 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:47:25" (1/1) ... [2024-11-17 08:47:26,076 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:47:25" (1/1) ... [2024-11-17 08:47:26,078 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:47:25" (1/1) ... [2024-11-17 08:47:26,080 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 08:47:26,081 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 08:47:26,081 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 08:47:26,081 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 08:47:26,082 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:47:25" (1/1) ... [2024-11-17 08:47:26,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:47:26,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:47:26,129 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 08:47:26,135 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 08:47:26,179 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 08:47:26,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 08:47:26,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 08:47:26,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 08:47:26,256 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 08:47:26,258 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 08:47:26,756 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L762-1: isLowWaterLevel_#res#1 := isLowWaterLevel_~retValue_acc~10#1; [2024-11-17 08:47:26,756 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L184-1: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; [2024-11-17 08:47:26,756 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L762-3: isLowWaterLevel_#res#1 := isLowWaterLevel_~retValue_acc~10#1; [2024-11-17 08:47:26,757 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L184-3: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; [2024-11-17 08:47:26,757 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L762-5: isLowWaterLevel_#res#1 := isLowWaterLevel_~retValue_acc~10#1; [2024-11-17 08:47:26,757 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L184-5: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; [2024-11-17 08:47:26,757 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L184-7: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; [2024-11-17 08:47:26,757 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L184-9: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; [2024-11-17 08:47:26,757 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L184-11: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; [2024-11-17 08:47:26,758 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L170-1: getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; [2024-11-17 08:47:26,758 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L170-3: getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; [2024-11-17 08:47:26,758 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L170-5: getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; [2024-11-17 08:47:26,758 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L138-1: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; [2024-11-17 08:47:26,758 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L138-3: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; [2024-11-17 08:47:26,758 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L138-5: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; [2024-11-17 08:47:26,758 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L998-1: main_#res#1 := main_~retValue_acc~13#1; [2024-11-17 08:47:26,759 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L902-1: valid_product_#res#1 := valid_product_~retValue_acc~12#1; [2024-11-17 08:47:26,759 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L688-1: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~8#1; [2024-11-17 08:47:26,759 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L688-3: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~8#1; [2024-11-17 08:47:26,759 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L688-5: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~8#1; [2024-11-17 08:47:26,759 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L193-1: isLowWaterSensorDry_#res#1 := isLowWaterSensorDry_~retValue_acc~3#1; [2024-11-17 08:47:26,759 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L193-3: isLowWaterSensorDry_#res#1 := isLowWaterSensorDry_~retValue_acc~3#1; [2024-11-17 08:47:26,760 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L193-5: isLowWaterSensorDry_#res#1 := isLowWaterSensorDry_~retValue_acc~3#1; [2024-11-17 08:47:26,760 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L743-1: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~9#1; [2024-11-17 08:47:26,760 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L743-3: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~9#1; [2024-11-17 08:47:26,760 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L743-5: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~9#1; [2024-11-17 08:47:26,760 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L743-7: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~9#1; [2024-11-17 08:47:26,760 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L743-9: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~9#1; [2024-11-17 08:47:26,760 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L743-11: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~9#1; [2024-11-17 08:47:26,786 INFO L? ?]: Removed 142 outVars from TransFormulas that were not future-live. [2024-11-17 08:47:26,787 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 08:47:26,802 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 08:47:26,803 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 08:47:26,804 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 08:47:26 BoogieIcfgContainer [2024-11-17 08:47:26,804 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 08:47:26,805 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-17 08:47:26,805 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-17 08:47:26,809 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-17 08:47:26,809 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-17 08:47:26,810 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 17.11 08:47:25" (1/3) ... [2024-11-17 08:47:26,810 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@44c37186 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.11 08:47:26, skipping insertion in model container [2024-11-17 08:47:26,810 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-17 08:47:26,811 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:47:25" (2/3) ... [2024-11-17 08:47:26,812 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@44c37186 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.11 08:47:26, skipping insertion in model container [2024-11-17 08:47:26,812 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-17 08:47:26,812 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 08:47:26" (3/3) ... [2024-11-17 08:47:26,813 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product52.cil.c [2024-11-17 08:47:26,859 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-17 08:47:26,860 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-17 08:47:26,860 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-17 08:47:26,860 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-17 08:47:26,860 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-17 08:47:26,860 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-17 08:47:26,860 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-17 08:47:26,861 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-17 08:47:26,866 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 178 states, 177 states have (on average 1.3672316384180792) internal successors, (242), 177 states have internal predecessors, (242), 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 08:47:26,899 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 116 [2024-11-17 08:47:26,901 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:47:26,901 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:47:26,909 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:47:26,910 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 08:47:26,910 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-17 08:47:26,911 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 178 states, 177 states have (on average 1.3672316384180792) internal successors, (242), 177 states have internal predecessors, (242), 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 08:47:26,923 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 116 [2024-11-17 08:47:26,923 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:47:26,923 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:47:26,928 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:47:26,928 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 08:47:26,933 INFO L745 eck$LassoCheckResult]: Stem: 159#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 34#ULTIMATE.init_returnLabel#1true assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~9#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 95#L893true assume true;assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 176#L886true assume true;assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~12#1;havoc valid_product_~retValue_acc~12#1;valid_product_~retValue_acc~12#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~12#1; 172#L901true assume true;main_#t~ret53#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~12#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 47#L988true assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 100#L965true assume true;assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet48#1, test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~3#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 20#L800true [2024-11-17 08:47:26,934 INFO L747 eck$LassoCheckResult]: Loop: 20#L800true assume true; 155#L800-1true assume !false; 7#test_while_3_continue#1true assume true; 61#L802true assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet48#1;test_~tmp~8#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1; 4#L810true assume !(0 != test_~tmp~8#1); 103#L818true havoc test_#t~nondet49#1;test_~tmp___0~3#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 32#L820true assume !(0 != test_~tmp___0~3#1); 163#L828true havoc test_#t~nondet50#1;test_~tmp___2~0#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 128#L830true assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet51#1;test_~tmp___1~1#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 38#L838true assume !(0 != test_~tmp___1~1#1); 132#L847true assume { :begin_inline_timeShift } true; 55#L576-2true assume !(0 != ~pumpRunning~0); 36#L583-2true assume !(0 != ~systemActive~0); 156#L591-2true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 150#L137-2true assume true;__utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1; 25#L63-2true assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1; 33#L84-2true assume true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 52#L593-2true assume true;assume { :end_inline_timeShift } true; 20#L800true [2024-11-17 08:47:26,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:47:26,941 INFO L85 PathProgramCache]: Analyzing trace with hash 432157503, now seen corresponding path program 1 times [2024-11-17 08:47:26,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:47:26,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692783543] [2024-11-17 08:47:26,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:47:26,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:47:27,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:27,058 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:47:27,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:27,095 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:47:27,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:47:27,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1443512443, now seen corresponding path program 1 times [2024-11-17 08:47:27,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:47:27,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278947311] [2024-11-17 08:47:27,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:47:27,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:47:27,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:27,112 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:47:27,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:27,126 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:47:27,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:47:27,130 INFO L85 PathProgramCache]: Analyzing trace with hash 1475665731, now seen corresponding path program 1 times [2024-11-17 08:47:27,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:47:27,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36119885] [2024-11-17 08:47:27,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:47:27,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:47:27,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:47:27,389 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 08:47:27,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 08:47:27,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36119885] [2024-11-17 08:47:27,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36119885] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 08:47:27,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 08:47:27,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 08:47:27,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107570310] [2024-11-17 08:47:27,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 08:47:27,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 08:47:27,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 08:47:27,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-17 08:47:27,515 INFO L87 Difference]: Start difference. First operand has 178 states, 177 states have (on average 1.3672316384180792) internal successors, (242), 177 states have internal predecessors, (242), 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 08:47:27,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 08:47:27,677 INFO L93 Difference]: Finished difference Result 408 states and 537 transitions. [2024-11-17 08:47:27,678 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 408 states and 537 transitions. [2024-11-17 08:47:27,686 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 266 [2024-11-17 08:47:27,695 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 408 states to 375 states and 504 transitions. [2024-11-17 08:47:27,696 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 375 [2024-11-17 08:47:27,697 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 375 [2024-11-17 08:47:27,698 INFO L73 IsDeterministic]: Start isDeterministic. Operand 375 states and 504 transitions. [2024-11-17 08:47:27,702 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-17 08:47:27,702 INFO L218 hiAutomatonCegarLoop]: Abstraction has 375 states and 504 transitions. [2024-11-17 08:47:27,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states and 504 transitions. [2024-11-17 08:47:27,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 220. [2024-11-17 08:47:27,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 220 states have (on average 1.3409090909090908) internal successors, (295), 219 states have internal predecessors, (295), 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 08:47:27,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 295 transitions. [2024-11-17 08:47:27,750 INFO L240 hiAutomatonCegarLoop]: Abstraction has 220 states and 295 transitions. [2024-11-17 08:47:27,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 08:47:27,756 INFO L425 stractBuchiCegarLoop]: Abstraction has 220 states and 295 transitions. [2024-11-17 08:47:27,757 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-17 08:47:27,757 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 220 states and 295 transitions. [2024-11-17 08:47:27,759 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 155 [2024-11-17 08:47:27,763 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:47:27,763 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:47:27,764 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:47:27,764 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 08:47:27,764 INFO L745 eck$LassoCheckResult]: Stem: 763#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 662#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~9#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 663#L893 assume true;assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 734#L886 assume true;assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~12#1;havoc valid_product_~retValue_acc~12#1;valid_product_~retValue_acc~12#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~12#1; 765#L901 assume true;main_#t~ret53#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~12#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 684#L988 assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 685#L965 assume true;assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet48#1, test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~3#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 636#L800 [2024-11-17 08:47:27,765 INFO L747 eck$LassoCheckResult]: Loop: 636#L800 assume true; 637#L800-1 assume !false; 616#test_while_3_continue#1 assume true; 617#L802 assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet48#1;test_~tmp~8#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1; 610#L810 assume !(0 != test_~tmp~8#1); 611#L818 havoc test_#t~nondet49#1;test_~tmp___0~3#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 658#L820 assume !(0 != test_~tmp___0~3#1); 660#L828 havoc test_#t~nondet50#1;test_~tmp___2~0#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 749#L830 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 750#L785 assume true;assume { :end_inline_startSystem } true; 673#L847 assume { :begin_inline_timeShift } true; 693#L576-2 assume !(0 != ~pumpRunning~0); 665#L583-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 666#L634-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret35#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4#1; 720#L608-5 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 692#L600-11 assume true;assume { :end_inline_processEnvironment__wrappee__base } true; 675#L626-5 assume true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret35#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 629#L652-2 assume true;havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~5#1;assume { :end_inline_processEnvironment } true; 630#L591-2 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 759#L137-2 assume true;__utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1; 645#L63-2 assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1; 646#L84-2 assume true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 661#L593-2 assume true;assume { :end_inline_timeShift } true; 636#L800 [2024-11-17 08:47:27,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:47:27,765 INFO L85 PathProgramCache]: Analyzing trace with hash 432157503, now seen corresponding path program 2 times [2024-11-17 08:47:27,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:47:27,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194734586] [2024-11-17 08:47:27,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:47:27,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:47:27,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:27,780 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:47:27,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:27,792 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:47:27,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:47:27,797 INFO L85 PathProgramCache]: Analyzing trace with hash 101934017, now seen corresponding path program 1 times [2024-11-17 08:47:27,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:47:27,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302257291] [2024-11-17 08:47:27,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:47:27,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:47:27,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:47:27,830 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 08:47:27,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 08:47:27,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302257291] [2024-11-17 08:47:27,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302257291] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 08:47:27,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 08:47:27,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 08:47:27,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904299241] [2024-11-17 08:47:27,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 08:47:27,831 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-17 08:47:27,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 08:47:27,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 08:47:27,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 08:47:27,832 INFO L87 Difference]: Start difference. First operand 220 states and 295 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 08:47:27,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 08:47:27,909 INFO L93 Difference]: Finished difference Result 278 states and 357 transitions. [2024-11-17 08:47:27,910 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 278 states and 357 transitions. [2024-11-17 08:47:27,916 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 200 [2024-11-17 08:47:27,918 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 278 states to 278 states and 357 transitions. [2024-11-17 08:47:27,918 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 278 [2024-11-17 08:47:27,919 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 278 [2024-11-17 08:47:27,919 INFO L73 IsDeterministic]: Start isDeterministic. Operand 278 states and 357 transitions. [2024-11-17 08:47:27,920 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-17 08:47:27,921 INFO L218 hiAutomatonCegarLoop]: Abstraction has 278 states and 357 transitions. [2024-11-17 08:47:27,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states and 357 transitions. [2024-11-17 08:47:27,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2024-11-17 08:47:27,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 278 states have (on average 1.2841726618705036) internal successors, (357), 277 states have internal predecessors, (357), 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 08:47:27,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 357 transitions. [2024-11-17 08:47:27,933 INFO L240 hiAutomatonCegarLoop]: Abstraction has 278 states and 357 transitions. [2024-11-17 08:47:27,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 08:47:27,934 INFO L425 stractBuchiCegarLoop]: Abstraction has 278 states and 357 transitions. [2024-11-17 08:47:27,934 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-17 08:47:27,934 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 278 states and 357 transitions. [2024-11-17 08:47:27,936 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 200 [2024-11-17 08:47:27,936 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:47:27,936 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:47:27,937 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:47:27,937 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 08:47:27,937 INFO L745 eck$LassoCheckResult]: Stem: 1273#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 1165#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~9#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 1166#L893 assume true;assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1239#L886 assume true;assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~12#1;havoc valid_product_~retValue_acc~12#1;valid_product_~retValue_acc~12#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~12#1; 1277#L901 assume true;main_#t~ret53#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~12#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 1186#L988 assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 1187#L965 assume true;assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet48#1, test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~3#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1139#L800 [2024-11-17 08:47:27,937 INFO L747 eck$LassoCheckResult]: Loop: 1139#L800 assume true; 1140#L800-1 assume !false; 1120#test_while_3_continue#1 assume true; 1121#L802 assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet48#1;test_~tmp~8#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1; 1114#L810 assume !(0 != test_~tmp~8#1); 1115#L818 havoc test_#t~nondet49#1;test_~tmp___0~3#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 1161#L820 assume !(0 != test_~tmp___0~3#1); 1163#L828 havoc test_#t~nondet50#1;test_~tmp___2~0#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 1258#L830 assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet51#1;test_~tmp___1~1#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 1170#L838 assume !(0 != test_~tmp___1~1#1); 1172#L847 assume { :begin_inline_timeShift } true; 1195#L576-2 assume !(0 != ~pumpRunning~0); 1168#L583-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 1169#L634-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret35#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4#1; 1221#L608-5 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret46#1, isHighWaterLevel_~retValue_acc~9#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~9#1;havoc isHighWaterLevel_~tmp~6#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; 1222#L177-5 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 1179#L182-5 assume true;isHighWaterLevel_#t~ret46#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret46#1;havoc isHighWaterLevel_#t~ret46#1; 1180#L736-5 assume !(0 != isHighWaterLevel_~tmp~6#1);isHighWaterLevel_~tmp___0~1#1 := 1; 1154#L741-5 isHighWaterLevel_~retValue_acc~9#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~9#1; 1155#L742-5 assume true;processEnvironment__wrappee__highWaterSensor_#t~ret35#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret46#1, isHighWaterLevel_~retValue_acc~9#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~4#1 := processEnvironment__wrappee__highWaterSensor_#t~ret35#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret35#1; 1108#L612-5 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1110#L600-10 assume true;assume { :end_inline_processEnvironment__wrappee__base } true; 1178#L626-5 assume true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret35#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1133#L652-2 assume true;havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~5#1;assume { :end_inline_processEnvironment } true; 1134#L591-2 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 1269#L137-2 assume true;__utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1; 1147#L63-2 assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1; 1148#L84-2 assume true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1164#L593-2 assume true;assume { :end_inline_timeShift } true; 1139#L800 [2024-11-17 08:47:27,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:47:27,938 INFO L85 PathProgramCache]: Analyzing trace with hash 432157503, now seen corresponding path program 3 times [2024-11-17 08:47:27,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:47:27,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830870900] [2024-11-17 08:47:27,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:47:27,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:47:27,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:27,947 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:47:27,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:27,957 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:47:27,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:47:27,957 INFO L85 PathProgramCache]: Analyzing trace with hash 2055309000, now seen corresponding path program 1 times [2024-11-17 08:47:27,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:47:27,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545212542] [2024-11-17 08:47:27,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:47:27,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:47:27,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:47:28,051 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 08:47:28,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 08:47:28,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545212542] [2024-11-17 08:47:28,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545212542] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 08:47:28,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 08:47:28,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 08:47:28,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312453188] [2024-11-17 08:47:28,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 08:47:28,055 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-17 08:47:28,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 08:47:28,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 08:47:28,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-17 08:47:28,057 INFO L87 Difference]: Start difference. First operand 278 states and 357 transitions. cyclomatic complexity: 82 Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:47:28,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 08:47:28,215 INFO L93 Difference]: Finished difference Result 296 states and 375 transitions. [2024-11-17 08:47:28,215 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 296 states and 375 transitions. [2024-11-17 08:47:28,217 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 212 [2024-11-17 08:47:28,219 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 296 states to 296 states and 375 transitions. [2024-11-17 08:47:28,219 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 296 [2024-11-17 08:47:28,220 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 296 [2024-11-17 08:47:28,220 INFO L73 IsDeterministic]: Start isDeterministic. Operand 296 states and 375 transitions. [2024-11-17 08:47:28,221 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-17 08:47:28,221 INFO L218 hiAutomatonCegarLoop]: Abstraction has 296 states and 375 transitions. [2024-11-17 08:47:28,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states and 375 transitions. [2024-11-17 08:47:28,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 296. [2024-11-17 08:47:28,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 296 states have (on average 1.2668918918918919) internal successors, (375), 295 states have internal predecessors, (375), 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 08:47:28,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 375 transitions. [2024-11-17 08:47:28,231 INFO L240 hiAutomatonCegarLoop]: Abstraction has 296 states and 375 transitions. [2024-11-17 08:47:28,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 08:47:28,232 INFO L425 stractBuchiCegarLoop]: Abstraction has 296 states and 375 transitions. [2024-11-17 08:47:28,232 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-17 08:47:28,232 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 296 states and 375 transitions. [2024-11-17 08:47:28,233 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 212 [2024-11-17 08:47:28,234 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:47:28,234 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:47:28,234 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:47:28,234 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 08:47:28,235 INFO L745 eck$LassoCheckResult]: Stem: 1875#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 1747#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~9#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 1748#L893 assume true;assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1832#L886 assume true;assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~12#1;havoc valid_product_~retValue_acc~12#1;valid_product_~retValue_acc~12#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~12#1; 1880#L901 assume true;main_#t~ret53#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~12#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 1771#L988 assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 1772#L965 assume true;assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet48#1, test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~3#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1781#L800 [2024-11-17 08:47:28,235 INFO L747 eck$LassoCheckResult]: Loop: 1781#L800 assume true; 1951#L800-1 assume !false; 1950#test_while_3_continue#1 assume true; 1791#L802 assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet48#1;test_~tmp~8#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1; 1692#L810 assume !(0 != test_~tmp~8#1); 1693#L818 havoc test_#t~nondet49#1;test_~tmp___0~3#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 1742#L820 assume !(0 != test_~tmp___0~3#1); 1744#L828 havoc test_#t~nondet50#1;test_~tmp___2~0#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 1853#L830 assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet51#1;test_~tmp___1~1#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 1854#L838 assume !(0 != test_~tmp___1~1#1); 1859#L847 assume { :begin_inline_timeShift } true; 1782#L576-2 assume !(0 != ~pumpRunning~0); 1750#L583-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 1751#L634-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret35#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4#1; 1814#L608-5 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret46#1, isHighWaterLevel_~retValue_acc~9#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~9#1;havoc isHighWaterLevel_~tmp~6#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; 1815#L177-5 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 1762#L182-5 assume true;isHighWaterLevel_#t~ret46#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret46#1;havoc isHighWaterLevel_#t~ret46#1; 1763#L736-5 assume 0 != isHighWaterLevel_~tmp~6#1;isHighWaterLevel_~tmp___0~1#1 := 0; 1863#L741-5 isHighWaterLevel_~retValue_acc~9#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~9#1; 1887#L742-5 assume true;processEnvironment__wrappee__highWaterSensor_#t~ret35#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret46#1, isHighWaterLevel_~retValue_acc~9#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~4#1 := processEnvironment__wrappee__highWaterSensor_#t~ret35#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret35#1; 1886#L612-5 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1760#L600-10 assume true;assume { :end_inline_processEnvironment__wrappee__base } true; 1761#L626-5 assume true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret35#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1714#L652-2 assume true;havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~5#1;assume { :end_inline_processEnvironment } true; 1715#L591-2 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 1956#L137-2 assume true;__utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1; 1728#L63-2 assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1; 1729#L84-2 assume true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1780#L593-2 assume true;assume { :end_inline_timeShift } true; 1781#L800 [2024-11-17 08:47:28,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:47:28,235 INFO L85 PathProgramCache]: Analyzing trace with hash 432157503, now seen corresponding path program 4 times [2024-11-17 08:47:28,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:47:28,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566525747] [2024-11-17 08:47:28,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:47:28,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:47:28,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:28,242 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:47:28,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:28,253 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:47:28,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:47:28,256 INFO L85 PathProgramCache]: Analyzing trace with hash 1926226281, now seen corresponding path program 1 times [2024-11-17 08:47:28,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:47:28,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602241760] [2024-11-17 08:47:28,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:47:28,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:47:28,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:28,266 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:47:28,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:28,279 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:47:28,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:47:28,281 INFO L85 PathProgramCache]: Analyzing trace with hash -1739579669, now seen corresponding path program 1 times [2024-11-17 08:47:28,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:47:28,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37074826] [2024-11-17 08:47:28,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:47:28,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:47:28,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:47:28,369 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 08:47:28,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 08:47:28,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37074826] [2024-11-17 08:47:28,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37074826] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 08:47:28,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 08:47:28,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 08:47:28,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163663299] [2024-11-17 08:47:28,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 08:47:28,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 08:47:28,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 08:47:28,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-17 08:47:28,505 INFO L87 Difference]: Start difference. First operand 296 states and 375 transitions. cyclomatic complexity: 82 Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 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 08:47:28,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 08:47:28,569 INFO L93 Difference]: Finished difference Result 585 states and 731 transitions. [2024-11-17 08:47:28,570 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 585 states and 731 transitions. [2024-11-17 08:47:28,573 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 424 [2024-11-17 08:47:28,576 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 585 states to 585 states and 731 transitions. [2024-11-17 08:47:28,577 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 585 [2024-11-17 08:47:28,577 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 585 [2024-11-17 08:47:28,577 INFO L73 IsDeterministic]: Start isDeterministic. Operand 585 states and 731 transitions. [2024-11-17 08:47:28,578 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-17 08:47:28,578 INFO L218 hiAutomatonCegarLoop]: Abstraction has 585 states and 731 transitions. [2024-11-17 08:47:28,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states and 731 transitions. [2024-11-17 08:47:28,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 585. [2024-11-17 08:47:28,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 585 states, 585 states have (on average 1.2495726495726496) internal successors, (731), 584 states have internal predecessors, (731), 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 08:47:28,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 731 transitions. [2024-11-17 08:47:28,602 INFO L240 hiAutomatonCegarLoop]: Abstraction has 585 states and 731 transitions. [2024-11-17 08:47:28,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 08:47:28,603 INFO L425 stractBuchiCegarLoop]: Abstraction has 585 states and 731 transitions. [2024-11-17 08:47:28,604 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-17 08:47:28,604 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 585 states and 731 transitions. [2024-11-17 08:47:28,606 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 424 [2024-11-17 08:47:28,606 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:47:28,607 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:47:28,607 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:47:28,607 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:47:28,608 INFO L745 eck$LassoCheckResult]: Stem: 2802#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 2643#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~9#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 2644#L893 assume true;assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2738#L886 assume true;assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~12#1;havoc valid_product_~retValue_acc~12#1;valid_product_~retValue_acc~12#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~12#1; 2813#L901 assume true;main_#t~ret53#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~12#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 2666#L988 assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 2667#L965 assume true;assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet48#1, test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~3#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2747#L800 [2024-11-17 08:47:28,608 INFO L747 eck$LassoCheckResult]: Loop: 2747#L800 assume true; 3065#L800-1 assume !false; 2594#test_while_3_continue#1 assume true; 2595#L802 assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet48#1;test_~tmp~8#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1; 3132#L810 assume !(0 != test_~tmp~8#1); 3143#L818 havoc test_#t~nondet49#1;test_~tmp___0~3#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 3141#L820 assume !(0 != test_~tmp___0~3#1); 3138#L828 havoc test_#t~nondet50#1;test_~tmp___2~0#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 2770#L830 assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet51#1;test_~tmp___1~1#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 2771#L838 assume !(0 != test_~tmp___1~1#1); 2810#L847 assume { :begin_inline_timeShift } true; 2917#L576-2 assume !(0 != ~pumpRunning~0); 2846#L583-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 2847#L634-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret35#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4#1; 2897#L608-5 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret46#1, isHighWaterLevel_~retValue_acc~9#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~9#1;havoc isHighWaterLevel_~tmp~6#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; 2896#L177-5 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 2895#L182-5 assume true;isHighWaterLevel_#t~ret46#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret46#1;havoc isHighWaterLevel_#t~ret46#1; 2894#L736-5 assume 0 != isHighWaterLevel_~tmp~6#1;isHighWaterLevel_~tmp___0~1#1 := 0; 2832#L741-5 isHighWaterLevel_~retValue_acc~9#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~9#1; 2830#L742-5 assume true;processEnvironment__wrappee__highWaterSensor_#t~ret35#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret46#1, isHighWaterLevel_~retValue_acc~9#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~4#1 := processEnvironment__wrappee__highWaterSensor_#t~ret35#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret35#1; 2831#L612-5 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2655#L600-10 assume true;assume { :end_inline_processEnvironment__wrappee__base } true; 2656#L626-5 assume true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret35#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 2609#L652-2 assume true;havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~5#1;assume { :end_inline_processEnvironment } true; 2610#L591-2 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 3136#L137-2 assume true;__utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1; 3135#L63-2 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~0#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 3134#L169-2 assume true;__utac_acc__Specification3_spec__1_#t~ret5#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~0#1 := __utac_acc__Specification3_spec__1_#t~ret5#1;havoc __utac_acc__Specification3_spec__1_#t~ret5#1; 3133#L69-2 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0#1); 3090#L84-2 assume true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 3091#L593-2 assume true;assume { :end_inline_timeShift } true; 2747#L800 [2024-11-17 08:47:28,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:47:28,608 INFO L85 PathProgramCache]: Analyzing trace with hash 432157503, now seen corresponding path program 5 times [2024-11-17 08:47:28,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:47:28,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26803520] [2024-11-17 08:47:28,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:47:28,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:47:28,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:28,615 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:47:28,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:28,623 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:47:28,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:47:28,623 INFO L85 PathProgramCache]: Analyzing trace with hash -27932985, now seen corresponding path program 1 times [2024-11-17 08:47:28,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:47:28,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552481622] [2024-11-17 08:47:28,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:47:28,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:47:28,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:28,635 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:47:28,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:28,645 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:47:28,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:47:28,648 INFO L85 PathProgramCache]: Analyzing trace with hash -994268215, now seen corresponding path program 1 times [2024-11-17 08:47:28,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:47:28,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578975962] [2024-11-17 08:47:28,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:47:28,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:47:28,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:28,662 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:47:28,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:28,674 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:47:29,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:29,542 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:47:29,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:29,596 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 17.11 08:47:29 BoogieIcfgContainer [2024-11-17 08:47:29,596 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-17 08:47:29,597 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-17 08:47:29,597 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-17 08:47:29,597 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-17 08:47:29,598 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 08:47:26" (3/4) ... [2024-11-17 08:47:29,599 INFO L140 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-17 08:47:29,671 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-17 08:47:29,671 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-17 08:47:29,672 INFO L158 Benchmark]: Toolchain (without parser) took 4205.47ms. Allocated memory was 182.5MB in the beginning and 220.2MB in the end (delta: 37.7MB). Free memory was 141.7MB in the beginning and 102.4MB in the end (delta: 39.3MB). Peak memory consumption was 78.1MB. Max. memory is 16.1GB. [2024-11-17 08:47:29,672 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 113.2MB. Free memory was 86.6MB in the beginning and 86.5MB in the end (delta: 125.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 08:47:29,672 INFO L158 Benchmark]: CACSL2BoogieTranslator took 498.62ms. Allocated memory is still 182.5MB. Free memory was 141.7MB in the beginning and 120.3MB in the end (delta: 21.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-17 08:47:29,673 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.70ms. Allocated memory is still 182.5MB. Free memory was 119.9MB in the beginning and 116.9MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 08:47:29,673 INFO L158 Benchmark]: Boogie Preprocessor took 61.70ms. Allocated memory is still 182.5MB. Free memory was 116.9MB in the beginning and 113.8MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-17 08:47:29,673 INFO L158 Benchmark]: IcfgBuilder took 723.21ms. Allocated memory is still 182.5MB. Free memory was 113.8MB in the beginning and 138.3MB in the end (delta: -24.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-17 08:47:29,674 INFO L158 Benchmark]: BuchiAutomizer took 2791.55ms. Allocated memory was 182.5MB in the beginning and 220.2MB in the end (delta: 37.7MB). Free memory was 138.3MB in the beginning and 105.5MB in the end (delta: 32.8MB). Peak memory consumption was 71.5MB. Max. memory is 16.1GB. [2024-11-17 08:47:29,674 INFO L158 Benchmark]: Witness Printer took 74.66ms. Allocated memory is still 220.2MB. Free memory was 105.5MB in the beginning and 102.4MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-17 08:47:29,677 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 113.2MB. Free memory was 86.6MB in the beginning and 86.5MB in the end (delta: 125.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 498.62ms. Allocated memory is still 182.5MB. Free memory was 141.7MB in the beginning and 120.3MB in the end (delta: 21.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.70ms. Allocated memory is still 182.5MB. Free memory was 119.9MB in the beginning and 116.9MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.70ms. Allocated memory is still 182.5MB. Free memory was 116.9MB in the beginning and 113.8MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * IcfgBuilder took 723.21ms. Allocated memory is still 182.5MB. Free memory was 113.8MB in the beginning and 138.3MB in the end (delta: -24.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 2791.55ms. Allocated memory was 182.5MB in the beginning and 220.2MB in the end (delta: 37.7MB). Free memory was 138.3MB in the beginning and 105.5MB in the end (delta: 32.8MB). Peak memory consumption was 71.5MB. Max. memory is 16.1GB. * Witness Printer took 74.66ms. Allocated memory is still 220.2MB. Free memory was 105.5MB in the beginning and 102.4MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [49] - GenericResultAtLocation [Line: 87]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [87] - GenericResultAtLocation [Line: 196]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [196] - GenericResultAtLocation [Line: 562]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [562] - GenericResultAtLocation [Line: 788]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [788] - GenericResultAtLocation [Line: 858]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [858] - GenericResultAtLocation [Line: 867]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [867] - GenericResultAtLocation [Line: 905]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [905] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (4 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.4 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 585 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.7s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 1.9s. Construction of modules took 0.2s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 155 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, 948 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 948 mSDsluCounter, 3067 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2136 mSDsCounter, 64 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 239 IncrementalHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 64 mSolverCounterUnsat, 931 mSDtfsCounter, 239 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 800]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L94] int waterLevel = 1; [L95] int methaneLevelCritical = 0; [L366] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L569] int pumpRunning = 0; [L570] int systemActive = 1; [L906] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L979] int retValue_acc ; [L980] int tmp ; [L984] FCALL select_helpers() [L985] FCALL select_features() [L986] CALL, EXPR valid_product() [L897] int retValue_acc ; [L900] retValue_acc = 1 [L901] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L986] RET, EXPR valid_product() [L986] tmp = valid_product() [L988] COND TRUE \read(tmp) [L990] FCALL setup() [L991] CALL runTest() [L973] CALL test() [L791] int splverifierCounter ; [L792] int tmp ; [L793] int tmp___0 ; [L794] int tmp___1 ; [L795] int tmp___2 ; [L798] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L800] COND TRUE 1 [L802] COND TRUE splverifierCounter < 4 [L808] tmp = __VERIFIER_nondet_int() [L810] COND FALSE !(\read(tmp)) [L818] tmp___0 = __VERIFIER_nondet_int() [L820] COND FALSE !(\read(tmp___0)) [L828] tmp___2 = __VERIFIER_nondet_int() [L830] COND FALSE !(\read(tmp___2)) [L836] tmp___1 = __VERIFIER_nondet_int() [L838] COND FALSE !(\read(tmp___1)) [L847] CALL timeShift() [L576] COND FALSE !(\read(pumpRunning)) [L583] COND TRUE \read(systemActive) [L585] CALL processEnvironment() [L631] int tmp ; [L634] COND FALSE !(\read(pumpRunning)) [L649] CALL processEnvironment__wrappee__highWaterSensor() [L605] int tmp ; [L608] COND TRUE ! pumpRunning [L610] CALL, EXPR isHighWaterLevel() [L728] int retValue_acc ; [L729] int tmp ; [L730] int tmp___0 ; [L734] CALL, EXPR isHighWaterSensorDry() [L174] int retValue_acc ; [L177] COND TRUE waterLevel < 2 [L178] retValue_acc = 1 [L179] return (retValue_acc); [L734] RET, EXPR isHighWaterSensorDry() [L734] tmp = isHighWaterSensorDry() [L736] COND TRUE \read(tmp) [L737] tmp___0 = 0 [L741] retValue_acc = tmp___0 [L742] return (retValue_acc); [L610] RET, EXPR isHighWaterLevel() [L610] tmp = isHighWaterLevel() [L612] COND FALSE !(\read(tmp)) [L618] FCALL processEnvironment__wrappee__base() [L649] RET processEnvironment__wrappee__highWaterSensor() [L585] RET processEnvironment() [L591] CALL __utac_acc__Specification3_spec__1() [L55] int tmp ; [L56] int tmp___0 ; [L57] int tmp___1 ; [L61] CALL, EXPR isMethaneLevelCritical() [L133] int retValue_acc ; [L136] retValue_acc = methaneLevelCritical [L137] return (retValue_acc); [L61] RET, EXPR isMethaneLevelCritical() [L61] tmp = isMethaneLevelCritical() [L63] COND FALSE !(\read(tmp)) [L67] CALL, EXPR getWaterLevel() [L165] int retValue_acc ; [L168] retValue_acc = waterLevel [L169] return (retValue_acc); [L67] RET, EXPR getWaterLevel() [L67] tmp___0 = getWaterLevel() [L69] COND FALSE !(tmp___0 == 2) [L591] RET __utac_acc__Specification3_spec__1() [L847] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 800]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L94] int waterLevel = 1; [L95] int methaneLevelCritical = 0; [L366] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L569] int pumpRunning = 0; [L570] int systemActive = 1; [L906] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L979] int retValue_acc ; [L980] int tmp ; [L984] FCALL select_helpers() [L985] FCALL select_features() [L986] CALL, EXPR valid_product() [L897] int retValue_acc ; [L900] retValue_acc = 1 [L901] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L986] RET, EXPR valid_product() [L986] tmp = valid_product() [L988] COND TRUE \read(tmp) [L990] FCALL setup() [L991] CALL runTest() [L973] CALL test() [L791] int splverifierCounter ; [L792] int tmp ; [L793] int tmp___0 ; [L794] int tmp___1 ; [L795] int tmp___2 ; [L798] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L800] COND TRUE 1 [L802] COND TRUE splverifierCounter < 4 [L808] tmp = __VERIFIER_nondet_int() [L810] COND FALSE !(\read(tmp)) [L818] tmp___0 = __VERIFIER_nondet_int() [L820] COND FALSE !(\read(tmp___0)) [L828] tmp___2 = __VERIFIER_nondet_int() [L830] COND FALSE !(\read(tmp___2)) [L836] tmp___1 = __VERIFIER_nondet_int() [L838] COND FALSE !(\read(tmp___1)) [L847] CALL timeShift() [L576] COND FALSE !(\read(pumpRunning)) [L583] COND TRUE \read(systemActive) [L585] CALL processEnvironment() [L631] int tmp ; [L634] COND FALSE !(\read(pumpRunning)) [L649] CALL processEnvironment__wrappee__highWaterSensor() [L605] int tmp ; [L608] COND TRUE ! pumpRunning [L610] CALL, EXPR isHighWaterLevel() [L728] int retValue_acc ; [L729] int tmp ; [L730] int tmp___0 ; [L734] CALL, EXPR isHighWaterSensorDry() [L174] int retValue_acc ; [L177] COND TRUE waterLevel < 2 [L178] retValue_acc = 1 [L179] return (retValue_acc); [L734] RET, EXPR isHighWaterSensorDry() [L734] tmp = isHighWaterSensorDry() [L736] COND TRUE \read(tmp) [L737] tmp___0 = 0 [L741] retValue_acc = tmp___0 [L742] return (retValue_acc); [L610] RET, EXPR isHighWaterLevel() [L610] tmp = isHighWaterLevel() [L612] COND FALSE !(\read(tmp)) [L618] FCALL processEnvironment__wrappee__base() [L649] RET processEnvironment__wrappee__highWaterSensor() [L585] RET processEnvironment() [L591] CALL __utac_acc__Specification3_spec__1() [L55] int tmp ; [L56] int tmp___0 ; [L57] int tmp___1 ; [L61] CALL, EXPR isMethaneLevelCritical() [L133] int retValue_acc ; [L136] retValue_acc = methaneLevelCritical [L137] return (retValue_acc); [L61] RET, EXPR isMethaneLevelCritical() [L61] tmp = isMethaneLevelCritical() [L63] COND FALSE !(\read(tmp)) [L67] CALL, EXPR getWaterLevel() [L165] int retValue_acc ; [L168] retValue_acc = waterLevel [L169] return (retValue_acc); [L67] RET, EXPR getWaterLevel() [L67] tmp___0 = getWaterLevel() [L69] COND FALSE !(tmp___0 == 2) [L591] RET __utac_acc__Specification3_spec__1() [L847] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-17 08:47:29,711 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)