./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product33.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_product33.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 e2e0ba6a085074e8295b6882a51ff57a646359fc725b3e12397ae540b49c1d93 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 08:47:09,547 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 08:47:09,612 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-17 08:47:09,618 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 08:47:09,619 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 08:47:09,619 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2024-11-17 08:47:09,643 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 08:47:09,644 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 08:47:09,644 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 08:47:09,645 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 08:47:09,645 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 08:47:09,646 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 08:47:09,646 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 08:47:09,647 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 08:47:09,647 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-17 08:47:09,647 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-17 08:47:09,648 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-17 08:47:09,648 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-17 08:47:09,648 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-17 08:47:09,648 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-17 08:47:09,649 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 08:47:09,652 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-17 08:47:09,652 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 08:47:09,652 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 08:47:09,653 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 08:47:09,653 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 08:47:09,653 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-17 08:47:09,653 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-17 08:47:09,653 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-17 08:47:09,654 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 08:47:09,654 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 08:47:09,654 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 08:47:09,654 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-17 08:47:09,655 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-17 08:47:09,655 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 08:47:09,658 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 08:47:09,658 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 08:47:09,658 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 08:47:09,658 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 08:47:09,659 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-17 08:47:09,659 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e2e0ba6a085074e8295b6882a51ff57a646359fc725b3e12397ae540b49c1d93 [2024-11-17 08:47:09,894 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 08:47:09,913 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 08:47:09,916 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 08:47:09,917 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 08:47:09,918 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 08:47:09,919 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product33.cil.c [2024-11-17 08:47:11,359 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 08:47:11,581 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 08:47:11,582 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product33.cil.c [2024-11-17 08:47:11,596 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da99d7081/8dea1d7c57bd4458b633344705c66042/FLAGff27fc81e [2024-11-17 08:47:11,611 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da99d7081/8dea1d7c57bd4458b633344705c66042 [2024-11-17 08:47:11,613 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 08:47:11,615 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 08:47:11,616 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 08:47:11,616 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 08:47:11,622 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 08:47:11,622 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 08:47:11" (1/1) ... [2024-11-17 08:47:11,623 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ccbcf65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:47:11, skipping insertion in model container [2024-11-17 08:47:11,624 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 08:47:11" (1/1) ... [2024-11-17 08:47:11,665 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 08:47:12,034 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 08:47:12,050 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 08:47:12,058 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [49] [2024-11-17 08:47:12,059 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [150] [2024-11-17 08:47:12,060 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [252] [2024-11-17 08:47:12,060 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [618] [2024-11-17 08:47:12,060 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [627] [2024-11-17 08:47:12,061 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [692] [2024-11-17 08:47:12,061 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [848] [2024-11-17 08:47:12,064 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [882] [2024-11-17 08:47:12,113 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 08:47:12,137 INFO L204 MainTranslator]: Completed translation [2024-11-17 08:47:12,137 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:47:12 WrapperNode [2024-11-17 08:47:12,138 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 08:47:12,139 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 08:47:12,139 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 08:47:12,139 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 08:47:12,146 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:47:12" (1/1) ... [2024-11-17 08:47:12,159 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:47:12" (1/1) ... [2024-11-17 08:47:12,186 INFO L138 Inliner]: procedures = 52, calls = 95, calls flagged for inlining = 48, calls inlined = 53, statements flattened = 370 [2024-11-17 08:47:12,186 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 08:47:12,187 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 08:47:12,187 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 08:47:12,187 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 08:47:12,197 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:47:12" (1/1) ... [2024-11-17 08:47:12,198 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:47:12" (1/1) ... [2024-11-17 08:47:12,200 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:47:12" (1/1) ... [2024-11-17 08:47:12,216 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 08:47:12,216 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:47:12" (1/1) ... [2024-11-17 08:47:12,216 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:47:12" (1/1) ... [2024-11-17 08:47:12,221 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:47:12" (1/1) ... [2024-11-17 08:47:12,223 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:47:12" (1/1) ... [2024-11-17 08:47:12,224 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:47:12" (1/1) ... [2024-11-17 08:47:12,225 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:47:12" (1/1) ... [2024-11-17 08:47:12,228 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 08:47:12,228 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 08:47:12,229 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 08:47:12,229 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 08:47:12,230 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:47:12" (1/1) ... [2024-11-17 08:47:12,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:47:12,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:47:12,265 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 08:47:12,268 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 08:47:12,305 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 08:47:12,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 08:47:12,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 08:47:12,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 08:47:12,379 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 08:47:12,380 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 08:47:12,700 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L101-5: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; [2024-11-17 08:47:12,700 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L845-1: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~9#1; [2024-11-17 08:47:12,700 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L845-3: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~9#1; [2024-11-17 08:47:12,700 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L845-5: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~9#1; [2024-11-17 08:47:12,701 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L914-1: valid_product_#res#1 := valid_product_~retValue_acc~11#1; [2024-11-17 08:47:12,701 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L790-1: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~8#1; [2024-11-17 08:47:12,701 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L790-3: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~8#1; [2024-11-17 08:47:12,701 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L790-5: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~8#1; [2024-11-17 08:47:12,701 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L147-1: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; [2024-11-17 08:47:12,701 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L147-3: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; [2024-11-17 08:47:12,701 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L147-5: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; [2024-11-17 08:47:12,701 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L133-1: getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; [2024-11-17 08:47:12,701 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L133-3: getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; [2024-11-17 08:47:12,701 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L133-5: getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; [2024-11-17 08:47:12,702 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L249-1: main_#res#1 := main_~retValue_acc~3#1; [2024-11-17 08:47:12,702 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L101-1: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; [2024-11-17 08:47:12,702 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L101-3: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; [2024-11-17 08:47:12,729 INFO L? ?]: Removed 85 outVars from TransFormulas that were not future-live. [2024-11-17 08:47:12,729 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 08:47:12,746 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 08:47:12,747 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 08:47:12,747 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 08:47:12 BoogieIcfgContainer [2024-11-17 08:47:12,747 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 08:47:12,748 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-17 08:47:12,748 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-17 08:47:12,751 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-17 08:47:12,751 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-17 08:47:12,751 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 17.11 08:47:11" (1/3) ... [2024-11-17 08:47:12,752 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7ca80aec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.11 08:47:12, skipping insertion in model container [2024-11-17 08:47:12,752 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-17 08:47:12,752 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:47:12" (2/3) ... [2024-11-17 08:47:12,752 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7ca80aec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.11 08:47:12, skipping insertion in model container [2024-11-17 08:47:12,753 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-17 08:47:12,753 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 08:47:12" (3/3) ... [2024-11-17 08:47:12,754 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product33.cil.c [2024-11-17 08:47:12,799 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-17 08:47:12,800 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-17 08:47:12,800 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-17 08:47:12,800 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-17 08:47:12,800 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-17 08:47:12,800 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-17 08:47:12,800 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-17 08:47:12,800 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-17 08:47:12,805 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 116 states, 115 states have (on average 1.373913043478261) internal successors, (158), 115 states have internal predecessors, (158), 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 08:47:12,834 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2024-11-17 08:47:12,834 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:47:12,835 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:47:12,843 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:47:12,843 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:47:12,844 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-17 08:47:12,844 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 116 states, 115 states have (on average 1.373913043478261) internal successors, (158), 115 states have internal predecessors, (158), 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 08:47:12,852 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2024-11-17 08:47:12,855 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:47:12,855 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:47:12,855 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:47:12,856 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:47:12,861 INFO L745 eck$LassoCheckResult]: Stem: 109#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;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 24#ULTIMATE.init_returnLabel#1true assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret9#1, main_~retValue_acc~3#1, main_~tmp~0#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 110#L905true assume true;assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 87#L898true assume true;assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 107#L913true assume true;main_#t~ret9#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret9#1;havoc main_#t~ret9#1; 25#L239true assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 73#L212true assume true;assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet33#1, test_#t~nondet34#1, test_#t~nondet35#1, test_#t~nondet36#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 99#L638true [2024-11-17 08:47:12,862 INFO L747 eck$LassoCheckResult]: Loop: 99#L638true assume true; 40#L638-1true assume !false; 111#test_while_4_continue#1true assume true; 28#L640true assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet33#1;test_~tmp~4#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; 117#L648true assume !(0 != test_~tmp~4#1); 94#L656true havoc test_#t~nondet34#1;test_~tmp___0~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; 21#L658true assume !(0 != test_~tmp___0~0#1); 10#L666true havoc test_#t~nondet35#1;test_~tmp___2~0#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; 29#L668true assume 0 != test_~tmp___2~0#1; 59#L681true assume { :begin_inline_timeShift } true; 37#L704-2true assume !(0 != ~pumpRunning~0); 63#L711-2true assume !(0 != ~systemActive~0); 22#L719-2true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret48#1, __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_~tmp~7#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~7#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 96#L100-2true assume true;__utac_acc__Specification3_spec__1_#t~ret48#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~7#1 := __utac_acc__Specification3_spec__1_#t~ret48#1;havoc __utac_acc__Specification3_spec__1_#t~ret48#1; 85#L858-2true assume 0 != __utac_acc__Specification3_spec__1_~tmp~7#1; 98#L879-2true assume true;havoc __utac_acc__Specification3_spec__1_#t~ret48#1, __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_~tmp~7#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 77#L721-2true assume true;assume { :end_inline_timeShift } true; 99#L638true [2024-11-17 08:47:12,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:47:12,871 INFO L85 PathProgramCache]: Analyzing trace with hash 1515595951, now seen corresponding path program 1 times [2024-11-17 08:47:12,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:47:12,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271792931] [2024-11-17 08:47:12,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:47:12,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:47:12,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:12,991 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:47:13,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:13,034 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:47:13,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:47:13,038 INFO L85 PathProgramCache]: Analyzing trace with hash 557070911, now seen corresponding path program 1 times [2024-11-17 08:47:13,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:47:13,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633834] [2024-11-17 08:47:13,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:47:13,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:47:13,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:13,052 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:47:13,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:13,062 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:47:13,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:47:13,063 INFO L85 PathProgramCache]: Analyzing trace with hash 1679475537, now seen corresponding path program 1 times [2024-11-17 08:47:13,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:47:13,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817126258] [2024-11-17 08:47:13,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:47:13,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:47:13,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:47:13,314 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 08:47:13,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 08:47:13,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817126258] [2024-11-17 08:47:13,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817126258] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 08:47:13,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 08:47:13,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 08:47:13,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205374325] [2024-11-17 08:47:13,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 08:47:13,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 08:47:13,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 08:47:13,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-17 08:47:13,468 INFO L87 Difference]: Start difference. First operand has 116 states, 115 states have (on average 1.373913043478261) internal successors, (158), 115 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:47:13,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 08:47:13,578 INFO L93 Difference]: Finished difference Result 110 states and 141 transitions. [2024-11-17 08:47:13,580 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 110 states and 141 transitions. [2024-11-17 08:47:13,584 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 67 [2024-11-17 08:47:13,589 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 110 states to 99 states and 130 transitions. [2024-11-17 08:47:13,591 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 99 [2024-11-17 08:47:13,592 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 99 [2024-11-17 08:47:13,592 INFO L73 IsDeterministic]: Start isDeterministic. Operand 99 states and 130 transitions. [2024-11-17 08:47:13,593 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-17 08:47:13,593 INFO L218 hiAutomatonCegarLoop]: Abstraction has 99 states and 130 transitions. [2024-11-17 08:47:13,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states and 130 transitions. [2024-11-17 08:47:13,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2024-11-17 08:47:13,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 99 states have (on average 1.3131313131313131) internal successors, (130), 98 states have internal predecessors, (130), 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 08:47:13,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 130 transitions. [2024-11-17 08:47:13,627 INFO L240 hiAutomatonCegarLoop]: Abstraction has 99 states and 130 transitions. [2024-11-17 08:47:13,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 08:47:13,631 INFO L425 stractBuchiCegarLoop]: Abstraction has 99 states and 130 transitions. [2024-11-17 08:47:13,632 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-17 08:47:13,632 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 99 states and 130 transitions. [2024-11-17 08:47:13,635 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 67 [2024-11-17 08:47:13,638 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:47:13,638 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:47:13,638 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:47:13,638 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] [2024-11-17 08:47:13,639 INFO L745 eck$LassoCheckResult]: Stem: 342#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;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 275#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret9#1, main_~retValue_acc~3#1, main_~tmp~0#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 276#L905 assume true;assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 336#L898 assume true;assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 337#L913 assume true;main_#t~ret9#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret9#1;havoc main_#t~ret9#1; 277#L239 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 278#L212 assume true;assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet33#1, test_#t~nondet34#1, test_#t~nondet35#1, test_#t~nondet36#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 328#L638 [2024-11-17 08:47:13,639 INFO L747 eck$LassoCheckResult]: Loop: 328#L638 assume true; 302#L638-1 assume !false; 303#test_while_4_continue#1 assume true; 282#L640 assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet33#1;test_~tmp~4#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; 284#L648 assume !(0 != test_~tmp~4#1); 249#L656 havoc test_#t~nondet34#1;test_~tmp___0~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; 270#L658 assume !(0 != test_~tmp___0~0#1); 252#L666 havoc test_#t~nondet35#1;test_~tmp___2~0#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; 253#L668 assume 0 != test_~tmp___2~0#1; 259#L681 assume { :begin_inline_timeShift } true; 296#L704-2 assume !(0 != ~pumpRunning~0); 297#L711-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 306#L736-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 298#L728-5 assume true;assume { :end_inline_processEnvironment__wrappee__base } true; 257#L754-2 assume true;havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~5#1;assume { :end_inline_processEnvironment } true; 272#L719-2 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret48#1, __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_~tmp~7#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~7#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 273#L100-2 assume true;__utac_acc__Specification3_spec__1_#t~ret48#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~7#1 := __utac_acc__Specification3_spec__1_#t~ret48#1;havoc __utac_acc__Specification3_spec__1_#t~ret48#1; 335#L858-2 assume 0 != __utac_acc__Specification3_spec__1_~tmp~7#1; 268#L879-2 assume true;havoc __utac_acc__Specification3_spec__1_#t~ret48#1, __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_~tmp~7#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 331#L721-2 assume true;assume { :end_inline_timeShift } true; 328#L638 [2024-11-17 08:47:13,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:47:13,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1515595951, now seen corresponding path program 2 times [2024-11-17 08:47:13,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:47:13,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162856039] [2024-11-17 08:47:13,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:47:13,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:47:13,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:13,654 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:47:13,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:13,673 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:47:13,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:47:13,673 INFO L85 PathProgramCache]: Analyzing trace with hash -903180894, now seen corresponding path program 1 times [2024-11-17 08:47:13,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:47:13,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455178827] [2024-11-17 08:47:13,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:47:13,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:47:13,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:47:13,696 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 08:47:13,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 08:47:13,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455178827] [2024-11-17 08:47:13,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455178827] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 08:47:13,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 08:47:13,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 08:47:13,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386424447] [2024-11-17 08:47:13,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 08:47:13,699 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-17 08:47:13,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 08:47:13,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 08:47:13,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 08:47:13,701 INFO L87 Difference]: Start difference. First operand 99 states and 130 transitions. cyclomatic complexity: 33 Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:47:13,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 08:47:13,758 INFO L93 Difference]: Finished difference Result 158 states and 202 transitions. [2024-11-17 08:47:13,759 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 158 states and 202 transitions. [2024-11-17 08:47:13,761 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 112 [2024-11-17 08:47:13,766 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 158 states to 158 states and 202 transitions. [2024-11-17 08:47:13,766 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 158 [2024-11-17 08:47:13,767 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 158 [2024-11-17 08:47:13,767 INFO L73 IsDeterministic]: Start isDeterministic. Operand 158 states and 202 transitions. [2024-11-17 08:47:13,768 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-17 08:47:13,771 INFO L218 hiAutomatonCegarLoop]: Abstraction has 158 states and 202 transitions. [2024-11-17 08:47:13,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states and 202 transitions. [2024-11-17 08:47:13,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2024-11-17 08:47:13,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 158 states have (on average 1.2784810126582278) internal successors, (202), 157 states have internal predecessors, (202), 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 08:47:13,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 202 transitions. [2024-11-17 08:47:13,785 INFO L240 hiAutomatonCegarLoop]: Abstraction has 158 states and 202 transitions. [2024-11-17 08:47:13,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 08:47:13,786 INFO L425 stractBuchiCegarLoop]: Abstraction has 158 states and 202 transitions. [2024-11-17 08:47:13,787 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-17 08:47:13,787 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 158 states and 202 transitions. [2024-11-17 08:47:13,788 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 112 [2024-11-17 08:47:13,788 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:47:13,788 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:47:13,789 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:47:13,790 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] [2024-11-17 08:47:13,791 INFO L745 eck$LassoCheckResult]: Stem: 613#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;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 540#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret9#1, main_~retValue_acc~3#1, main_~tmp~0#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 541#L905 assume true;assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 603#L898 assume true;assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 604#L913 assume true;main_#t~ret9#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret9#1;havoc main_#t~ret9#1; 542#L239 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 543#L212 assume true;assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet33#1, test_#t~nondet34#1, test_#t~nondet35#1, test_#t~nondet36#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 594#L638 [2024-11-17 08:47:13,791 INFO L747 eck$LassoCheckResult]: Loop: 594#L638 assume true; 566#L638-1 assume !false; 567#test_while_4_continue#1 assume true; 547#L640 assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet33#1;test_~tmp~4#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; 549#L648 assume !(0 != test_~tmp~4#1); 512#L656 havoc test_#t~nondet34#1;test_~tmp___0~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; 535#L658 assume !(0 != test_~tmp___0~0#1); 515#L666 havoc test_#t~nondet35#1;test_~tmp___2~0#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; 516#L668 assume 0 != test_~tmp___2~0#1; 522#L681 assume { :begin_inline_timeShift } true; 560#L704-2 assume !(0 != ~pumpRunning~0); 561#L711-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 569#L736-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret47#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; 570#L140-2 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~2#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 575#L145-2 assume true;isHighWaterLevel_#t~ret47#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret47#1;havoc isHighWaterLevel_#t~ret47#1; 576#L838-2 assume 0 != isHighWaterLevel_~tmp~6#1;isHighWaterLevel_~tmp___0~1#1 := 0; 552#L843-2 isHighWaterLevel_~retValue_acc~9#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~9#1; 553#L844-2 assume true;processEnvironment_#t~ret37#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret47#1, isHighWaterLevel_~retValue_acc~9#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~5#1 := processEnvironment_#t~ret37#1;havoc processEnvironment_#t~ret37#1; 546#L740-2 assume !(0 != processEnvironment_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 533#L728-4 assume true;assume { :end_inline_processEnvironment__wrappee__base } true; 534#L754-2 assume true;havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~5#1;assume { :end_inline_processEnvironment } true; 537#L719-2 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret48#1, __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_~tmp~7#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~7#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 538#L100-2 assume true;__utac_acc__Specification3_spec__1_#t~ret48#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~7#1 := __utac_acc__Specification3_spec__1_#t~ret48#1;havoc __utac_acc__Specification3_spec__1_#t~ret48#1; 602#L858-2 assume 0 != __utac_acc__Specification3_spec__1_~tmp~7#1; 532#L879-2 assume true;havoc __utac_acc__Specification3_spec__1_#t~ret48#1, __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_~tmp~7#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 597#L721-2 assume true;assume { :end_inline_timeShift } true; 594#L638 [2024-11-17 08:47:13,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:47:13,792 INFO L85 PathProgramCache]: Analyzing trace with hash 1515595951, now seen corresponding path program 3 times [2024-11-17 08:47:13,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:47:13,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282979777] [2024-11-17 08:47:13,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:47:13,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:47:13,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:13,807 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:47:13,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:13,818 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:47:13,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:47:13,819 INFO L85 PathProgramCache]: Analyzing trace with hash 2098109435, now seen corresponding path program 1 times [2024-11-17 08:47:13,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:47:13,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561122673] [2024-11-17 08:47:13,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:47:13,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:47:13,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:47:13,863 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 08:47:13,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 08:47:13,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561122673] [2024-11-17 08:47:13,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561122673] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 08:47:13,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 08:47:13,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 08:47:13,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715077681] [2024-11-17 08:47:13,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 08:47:13,864 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-17 08:47:13,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 08:47:13,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 08:47:13,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 08:47:13,865 INFO L87 Difference]: Start difference. First operand 158 states and 202 transitions. cyclomatic complexity: 46 Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:47:13,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 08:47:13,908 INFO L93 Difference]: Finished difference Result 164 states and 208 transitions. [2024-11-17 08:47:13,908 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 164 states and 208 transitions. [2024-11-17 08:47:13,909 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 116 [2024-11-17 08:47:13,910 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 164 states to 164 states and 208 transitions. [2024-11-17 08:47:13,911 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 164 [2024-11-17 08:47:13,911 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 164 [2024-11-17 08:47:13,911 INFO L73 IsDeterministic]: Start isDeterministic. Operand 164 states and 208 transitions. [2024-11-17 08:47:13,912 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-17 08:47:13,912 INFO L218 hiAutomatonCegarLoop]: Abstraction has 164 states and 208 transitions. [2024-11-17 08:47:13,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states and 208 transitions. [2024-11-17 08:47:13,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164. [2024-11-17 08:47:13,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 164 states have (on average 1.2682926829268293) internal successors, (208), 163 states have internal predecessors, (208), 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 08:47:13,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 208 transitions. [2024-11-17 08:47:13,917 INFO L240 hiAutomatonCegarLoop]: Abstraction has 164 states and 208 transitions. [2024-11-17 08:47:13,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 08:47:13,918 INFO L425 stractBuchiCegarLoop]: Abstraction has 164 states and 208 transitions. [2024-11-17 08:47:13,918 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-17 08:47:13,918 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 164 states and 208 transitions. [2024-11-17 08:47:13,919 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 116 [2024-11-17 08:47:13,919 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:47:13,919 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:47:13,920 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:47:13,920 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] [2024-11-17 08:47:13,920 INFO L745 eck$LassoCheckResult]: Stem: 946#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;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 868#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret9#1, main_~retValue_acc~3#1, main_~tmp~0#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 869#L905 assume true;assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 936#L898 assume true;assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 937#L913 assume true;main_#t~ret9#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret9#1;havoc main_#t~ret9#1; 870#L239 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 871#L212 assume true;assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet33#1, test_#t~nondet34#1, test_#t~nondet35#1, test_#t~nondet36#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 925#L638 [2024-11-17 08:47:13,920 INFO L747 eck$LassoCheckResult]: Loop: 925#L638 assume true; 895#L638-1 assume !false; 896#test_while_4_continue#1 assume true; 875#L640 assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet33#1;test_~tmp~4#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; 877#L648 assume !(0 != test_~tmp~4#1); 841#L656 havoc test_#t~nondet34#1;test_~tmp___0~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; 863#L658 assume !(0 != test_~tmp___0~0#1); 844#L666 havoc test_#t~nondet35#1;test_~tmp___2~0#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; 845#L668 assume 0 != test_~tmp___2~0#1; 851#L681 assume { :begin_inline_timeShift } true; 886#L704-2 assume !(0 != ~pumpRunning~0); 887#L711-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 898#L736-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret47#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; 899#L140-2 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~2#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 904#L145-2 assume true;isHighWaterLevel_#t~ret47#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret47#1;havoc isHighWaterLevel_#t~ret47#1; 905#L838-2 assume !(0 != isHighWaterLevel_~tmp~6#1);isHighWaterLevel_~tmp___0~1#1 := 1; 880#L843-2 isHighWaterLevel_~retValue_acc~9#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~9#1; 881#L844-2 assume true;processEnvironment_#t~ret37#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret47#1, isHighWaterLevel_~retValue_acc~9#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~5#1 := processEnvironment_#t~ret37#1;havoc processEnvironment_#t~ret37#1; 874#L740-2 assume !(0 != processEnvironment_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 861#L728-4 assume true;assume { :end_inline_processEnvironment__wrappee__base } true; 862#L754-2 assume true;havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~5#1;assume { :end_inline_processEnvironment } true; 865#L719-2 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret48#1, __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_~tmp~7#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~7#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 866#L100-2 assume true;__utac_acc__Specification3_spec__1_#t~ret48#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~7#1 := __utac_acc__Specification3_spec__1_#t~ret48#1;havoc __utac_acc__Specification3_spec__1_#t~ret48#1; 934#L858-2 assume 0 != __utac_acc__Specification3_spec__1_~tmp~7#1; 860#L879-2 assume true;havoc __utac_acc__Specification3_spec__1_#t~ret48#1, __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_~tmp~7#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 929#L721-2 assume true;assume { :end_inline_timeShift } true; 925#L638 [2024-11-17 08:47:13,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:47:13,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1515595951, now seen corresponding path program 4 times [2024-11-17 08:47:13,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:47:13,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969940586] [2024-11-17 08:47:13,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:47:13,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:47:13,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:13,925 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:47:13,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:13,931 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:47:13,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:47:13,931 INFO L85 PathProgramCache]: Analyzing trace with hash 301158076, now seen corresponding path program 1 times [2024-11-17 08:47:13,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:47:13,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431670457] [2024-11-17 08:47:13,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:47:13,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:47:13,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:47:13,983 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 08:47:13,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 08:47:13,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431670457] [2024-11-17 08:47:13,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431670457] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 08:47:13,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 08:47:13,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 08:47:13,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435766515] [2024-11-17 08:47:13,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 08:47:13,985 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-17 08:47:13,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 08:47:13,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 08:47:13,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-17 08:47:13,985 INFO L87 Difference]: Start difference. First operand 164 states and 208 transitions. cyclomatic complexity: 46 Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:47:14,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 08:47:14,058 INFO L93 Difference]: Finished difference Result 173 states and 217 transitions. [2024-11-17 08:47:14,058 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 173 states and 217 transitions. [2024-11-17 08:47:14,060 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 122 [2024-11-17 08:47:14,062 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 173 states to 173 states and 217 transitions. [2024-11-17 08:47:14,064 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 173 [2024-11-17 08:47:14,064 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 173 [2024-11-17 08:47:14,064 INFO L73 IsDeterministic]: Start isDeterministic. Operand 173 states and 217 transitions. [2024-11-17 08:47:14,065 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-17 08:47:14,065 INFO L218 hiAutomatonCegarLoop]: Abstraction has 173 states and 217 transitions. [2024-11-17 08:47:14,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states and 217 transitions. [2024-11-17 08:47:14,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2024-11-17 08:47:14,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 173 states have (on average 1.254335260115607) internal successors, (217), 172 states have internal predecessors, (217), 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 08:47:14,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 217 transitions. [2024-11-17 08:47:14,074 INFO L240 hiAutomatonCegarLoop]: Abstraction has 173 states and 217 transitions. [2024-11-17 08:47:14,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 08:47:14,075 INFO L425 stractBuchiCegarLoop]: Abstraction has 173 states and 217 transitions. [2024-11-17 08:47:14,075 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-17 08:47:14,075 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 173 states and 217 transitions. [2024-11-17 08:47:14,077 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 122 [2024-11-17 08:47:14,077 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:47:14,077 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:47:14,077 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:47:14,077 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] [2024-11-17 08:47:14,078 INFO L745 eck$LassoCheckResult]: Stem: 1291#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;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 1215#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret9#1, main_~retValue_acc~3#1, main_~tmp~0#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 1216#L905 assume true;assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1280#L898 assume true;assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 1281#L913 assume true;main_#t~ret9#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret9#1;havoc main_#t~ret9#1; 1217#L239 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 1218#L212 assume true;assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet33#1, test_#t~nondet34#1, test_#t~nondet35#1, test_#t~nondet36#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1272#L638 [2024-11-17 08:47:14,078 INFO L747 eck$LassoCheckResult]: Loop: 1272#L638 assume true; 1241#L638-1 assume !false; 1242#test_while_4_continue#1 assume true; 1222#L640 assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet33#1;test_~tmp~4#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; 1224#L648 assume !(0 != test_~tmp~4#1); 1186#L656 havoc test_#t~nondet34#1;test_~tmp___0~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; 1209#L658 assume !(0 != test_~tmp___0~0#1); 1189#L666 havoc test_#t~nondet35#1;test_~tmp___2~0#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; 1190#L668 assume 0 != test_~tmp___2~0#1; 1196#L681 assume { :begin_inline_timeShift } true; 1236#L704-2 assume !(0 != ~pumpRunning~0); 1237#L711-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 1244#L736-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret47#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; 1245#L140-2 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 1250#L145-2 assume true;isHighWaterLevel_#t~ret47#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret47#1;havoc isHighWaterLevel_#t~ret47#1; 1251#L838-2 assume 0 != isHighWaterLevel_~tmp~6#1;isHighWaterLevel_~tmp___0~1#1 := 0; 1353#L843-2 isHighWaterLevel_~retValue_acc~9#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~9#1; 1352#L844-2 assume true;processEnvironment_#t~ret37#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret47#1, isHighWaterLevel_~retValue_acc~9#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~5#1 := processEnvironment_#t~ret37#1;havoc processEnvironment_#t~ret37#1; 1351#L740-2 assume !(0 != processEnvironment_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1207#L728-4 assume true;assume { :end_inline_processEnvironment__wrappee__base } true; 1208#L754-2 assume true;havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~5#1;assume { :end_inline_processEnvironment } true; 1211#L719-2 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret48#1, __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_~tmp~7#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~7#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 1212#L100-2 assume true;__utac_acc__Specification3_spec__1_#t~ret48#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~7#1 := __utac_acc__Specification3_spec__1_#t~ret48#1;havoc __utac_acc__Specification3_spec__1_#t~ret48#1; 1279#L858-2 assume 0 != __utac_acc__Specification3_spec__1_~tmp~7#1; 1206#L879-2 assume true;havoc __utac_acc__Specification3_spec__1_#t~ret48#1, __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_~tmp~7#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1274#L721-2 assume true;assume { :end_inline_timeShift } true; 1272#L638 [2024-11-17 08:47:14,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:47:14,079 INFO L85 PathProgramCache]: Analyzing trace with hash 1515595951, now seen corresponding path program 5 times [2024-11-17 08:47:14,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:47:14,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689243113] [2024-11-17 08:47:14,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:47:14,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:47:14,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:14,089 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:47:14,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:14,097 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:47:14,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:47:14,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1610051847, now seen corresponding path program 1 times [2024-11-17 08:47:14,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:47:14,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383872390] [2024-11-17 08:47:14,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:47:14,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:47:14,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:14,112 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:47:14,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:14,122 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:47:14,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:47:14,126 INFO L85 PathProgramCache]: Analyzing trace with hash -1164568025, now seen corresponding path program 1 times [2024-11-17 08:47:14,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:47:14,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656535672] [2024-11-17 08:47:14,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:47:14,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:47:14,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:47:14,256 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 08:47:14,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 08:47:14,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656535672] [2024-11-17 08:47:14,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656535672] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 08:47:14,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 08:47:14,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 08:47:14,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316740541] [2024-11-17 08:47:14,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 08:47:14,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 08:47:14,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 08:47:14,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-17 08:47:14,403 INFO L87 Difference]: Start difference. First operand 173 states and 217 transitions. cyclomatic complexity: 46 Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 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 08:47:14,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 08:47:14,471 INFO L93 Difference]: Finished difference Result 339 states and 419 transitions. [2024-11-17 08:47:14,471 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 339 states and 419 transitions. [2024-11-17 08:47:14,474 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 244 [2024-11-17 08:47:14,476 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 339 states to 339 states and 419 transitions. [2024-11-17 08:47:14,476 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 339 [2024-11-17 08:47:14,477 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 339 [2024-11-17 08:47:14,477 INFO L73 IsDeterministic]: Start isDeterministic. Operand 339 states and 419 transitions. [2024-11-17 08:47:14,479 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-17 08:47:14,481 INFO L218 hiAutomatonCegarLoop]: Abstraction has 339 states and 419 transitions. [2024-11-17 08:47:14,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states and 419 transitions. [2024-11-17 08:47:14,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 339. [2024-11-17 08:47:14,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 339 states have (on average 1.2359882005899705) internal successors, (419), 338 states have internal predecessors, (419), 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 08:47:14,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 419 transitions. [2024-11-17 08:47:14,499 INFO L240 hiAutomatonCegarLoop]: Abstraction has 339 states and 419 transitions. [2024-11-17 08:47:14,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 08:47:14,505 INFO L425 stractBuchiCegarLoop]: Abstraction has 339 states and 419 transitions. [2024-11-17 08:47:14,505 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-11-17 08:47:14,505 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 339 states and 419 transitions. [2024-11-17 08:47:14,508 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 244 [2024-11-17 08:47:14,508 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:47:14,509 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:47:14,510 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:47:14,510 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] [2024-11-17 08:47:14,510 INFO L745 eck$LassoCheckResult]: Stem: 1829#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;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 1740#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret9#1, main_~retValue_acc~3#1, main_~tmp~0#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 1741#L905 assume true;assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1816#L898 assume true;assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 1817#L913 assume true;main_#t~ret9#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret9#1;havoc main_#t~ret9#1; 1742#L239 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 1743#L212 assume true;assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet33#1, test_#t~nondet34#1, test_#t~nondet35#1, test_#t~nondet36#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1803#L638 [2024-11-17 08:47:14,511 INFO L747 eck$LassoCheckResult]: Loop: 1803#L638 assume true; 1766#L638-1 assume !false; 1767#test_while_4_continue#1 assume true; 1747#L640 assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet33#1;test_~tmp~4#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; 1749#L648 assume !(0 != test_~tmp~4#1); 1967#L656 havoc test_#t~nondet34#1;test_~tmp___0~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; 1964#L658 assume !(0 != test_~tmp___0~0#1); 1961#L666 havoc test_#t~nondet35#1;test_~tmp___2~0#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; 1959#L668 assume 0 != test_~tmp___2~0#1; 1956#L681 assume { :begin_inline_timeShift } true; 1955#L704-2 assume !(0 != ~pumpRunning~0); 1884#L711-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 1949#L736-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret47#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; 1883#L140-2 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 1947#L145-2 assume true;isHighWaterLevel_#t~ret47#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret47#1;havoc isHighWaterLevel_#t~ret47#1; 1941#L838-2 assume 0 != isHighWaterLevel_~tmp~6#1;isHighWaterLevel_~tmp___0~1#1 := 0; 1942#L843-2 isHighWaterLevel_~retValue_acc~9#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~9#1; 1970#L844-2 assume true;processEnvironment_#t~ret37#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret47#1, isHighWaterLevel_~retValue_acc~9#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~5#1 := processEnvironment_#t~ret37#1;havoc processEnvironment_#t~ret37#1; 1969#L740-2 assume !(0 != processEnvironment_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1733#L728-4 assume true;assume { :end_inline_processEnvironment__wrappee__base } true; 1734#L754-2 assume true;havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~5#1;assume { :end_inline_processEnvironment } true; 1737#L719-2 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret48#1, __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_~tmp~7#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~7#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 1738#L100-2 assume true;__utac_acc__Specification3_spec__1_#t~ret48#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~7#1 := __utac_acc__Specification3_spec__1_#t~ret48#1;havoc __utac_acc__Specification3_spec__1_#t~ret48#1; 1813#L858-2 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~7#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; 1814#L132-2 assume true;__utac_acc__Specification3_spec__1_#t~ret49#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~2#1 := __utac_acc__Specification3_spec__1_#t~ret49#1;havoc __utac_acc__Specification3_spec__1_#t~ret49#1; 1773#L864-2 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~2#1); 1732#L879-2 assume true;havoc __utac_acc__Specification3_spec__1_#t~ret48#1, __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_~tmp~7#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1808#L721-2 assume true;assume { :end_inline_timeShift } true; 1803#L638 [2024-11-17 08:47:14,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:47:14,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1515595951, now seen corresponding path program 6 times [2024-11-17 08:47:14,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:47:14,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568839415] [2024-11-17 08:47:14,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:47:14,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:47:14,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:14,521 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:47:14,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:14,530 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:47:14,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:47:14,530 INFO L85 PathProgramCache]: Analyzing trace with hash -1072085737, now seen corresponding path program 1 times [2024-11-17 08:47:14,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:47:14,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010563793] [2024-11-17 08:47:14,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:47:14,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:47:14,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:14,543 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:47:14,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:14,551 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:47:14,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:47:14,553 INFO L85 PathProgramCache]: Analyzing trace with hash 1836104901, now seen corresponding path program 1 times [2024-11-17 08:47:14,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:47:14,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595962927] [2024-11-17 08:47:14,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:47:14,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:47:14,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:14,570 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:47:14,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:14,586 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:47:15,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:15,552 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:47:15,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:15,614 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 17.11 08:47:15 BoogieIcfgContainer [2024-11-17 08:47:15,614 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-17 08:47:15,617 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-17 08:47:15,617 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-17 08:47:15,618 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-17 08:47:15,619 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 08:47:12" (3/4) ... [2024-11-17 08:47:15,623 INFO L140 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-17 08:47:15,677 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-17 08:47:15,677 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-17 08:47:15,678 INFO L158 Benchmark]: Toolchain (without parser) took 4063.32ms. Allocated memory was 151.0MB in the beginning and 199.2MB in the end (delta: 48.2MB). Free memory was 83.7MB in the beginning and 102.0MB in the end (delta: -18.3MB). Peak memory consumption was 30.3MB. Max. memory is 16.1GB. [2024-11-17 08:47:15,678 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 104.9MB. Free memory is still 66.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 08:47:15,679 INFO L158 Benchmark]: CACSL2BoogieTranslator took 521.62ms. Allocated memory is still 151.0MB. Free memory was 83.5MB in the beginning and 107.9MB in the end (delta: -24.4MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. [2024-11-17 08:47:15,679 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.70ms. Allocated memory is still 151.0MB. Free memory was 107.9MB in the beginning and 105.3MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 08:47:15,679 INFO L158 Benchmark]: Boogie Preprocessor took 40.83ms. Allocated memory is still 151.0MB. Free memory was 105.3MB in the beginning and 102.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 08:47:15,680 INFO L158 Benchmark]: IcfgBuilder took 518.71ms. Allocated memory is still 151.0MB. Free memory was 102.8MB in the beginning and 78.6MB in the end (delta: 24.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-17 08:47:15,680 INFO L158 Benchmark]: BuchiAutomizer took 2866.30ms. Allocated memory was 151.0MB in the beginning and 199.2MB in the end (delta: 48.2MB). Free memory was 78.6MB in the beginning and 105.0MB in the end (delta: -26.4MB). Peak memory consumption was 23.9MB. Max. memory is 16.1GB. [2024-11-17 08:47:15,680 INFO L158 Benchmark]: Witness Printer took 60.78ms. Allocated memory is still 199.2MB. Free memory was 105.0MB in the beginning and 102.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 08:47:15,682 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 104.9MB. Free memory is still 66.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 521.62ms. Allocated memory is still 151.0MB. Free memory was 83.5MB in the beginning and 107.9MB in the end (delta: -24.4MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.70ms. Allocated memory is still 151.0MB. Free memory was 107.9MB in the beginning and 105.3MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.83ms. Allocated memory is still 151.0MB. Free memory was 105.3MB in the beginning and 102.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 518.71ms. Allocated memory is still 151.0MB. Free memory was 102.8MB in the beginning and 78.6MB in the end (delta: 24.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 2866.30ms. Allocated memory was 151.0MB in the beginning and 199.2MB in the end (delta: 48.2MB). Free memory was 78.6MB in the beginning and 105.0MB in the end (delta: -26.4MB). Peak memory consumption was 23.9MB. Max. memory is 16.1GB. * Witness Printer took 60.78ms. Allocated memory is still 199.2MB. Free memory was 105.0MB in the beginning and 102.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [49] - GenericResultAtLocation [Line: 150]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [150] - GenericResultAtLocation [Line: 252]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [252] - GenericResultAtLocation [Line: 618]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [618] - GenericResultAtLocation [Line: 627]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [627] - GenericResultAtLocation [Line: 692]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [692] - GenericResultAtLocation [Line: 848]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [848] - GenericResultAtLocation [Line: 882]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [882] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (5 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.5 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 339 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.7s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 2.1s. Construction of modules took 0.1s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 5. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 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, 464 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 464 mSDsluCounter, 1994 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1306 mSDsCounter, 37 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 179 IncrementalHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 37 mSolverCounterUnsat, 688 mSDtfsCounter, 179 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI3 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: 638]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L57] int waterLevel = 1; [L58] int methaneLevelCritical = 0; [L151] int cleanupTimeShifts = 4; [L422] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L696] int pumpRunning = 0; [L697] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L230] int retValue_acc ; [L231] int tmp ; [L235] FCALL select_helpers() [L236] FCALL select_features() [L237] CALL, EXPR valid_product() [L909] int retValue_acc ; [L912] retValue_acc = 1 [L913] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L237] RET, EXPR valid_product() [L237] tmp = valid_product() [L239] COND TRUE \read(tmp) [L241] FCALL setup() [L242] CALL runTest() [L221] CALL test() [L629] int splverifierCounter ; [L630] int tmp ; [L631] int tmp___0 ; [L632] int tmp___1 ; [L633] int tmp___2 ; [L636] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L638] COND TRUE 1 [L640] COND TRUE splverifierCounter < 4 [L646] tmp = __VERIFIER_nondet_int() [L648] COND FALSE !(\read(tmp)) [L656] tmp___0 = __VERIFIER_nondet_int() [L658] COND FALSE !(\read(tmp___0)) [L666] tmp___2 = __VERIFIER_nondet_int() [L668] COND TRUE \read(tmp___2) [L681] CALL timeShift() [L704] COND FALSE !(\read(pumpRunning)) [L711] COND TRUE \read(systemActive) [L713] CALL processEnvironment() [L733] int tmp ; [L736] COND TRUE ! pumpRunning [L738] CALL, EXPR isHighWaterLevel() [L830] int retValue_acc ; [L831] int tmp ; [L832] int tmp___0 ; [L836] CALL, EXPR isHighWaterSensorDry() [L137] int retValue_acc ; [L140] COND TRUE waterLevel < 2 [L141] retValue_acc = 1 [L142] return (retValue_acc); [L836] RET, EXPR isHighWaterSensorDry() [L836] tmp = isHighWaterSensorDry() [L838] COND TRUE \read(tmp) [L839] tmp___0 = 0 [L843] retValue_acc = tmp___0 [L844] return (retValue_acc); [L738] RET, EXPR isHighWaterLevel() [L738] tmp = isHighWaterLevel() [L740] COND FALSE !(\read(tmp)) [L746] FCALL processEnvironment__wrappee__base() [L713] RET processEnvironment() [L719] CALL __utac_acc__Specification3_spec__1() [L850] int tmp ; [L851] int tmp___0 ; [L852] int tmp___1 ; [L856] CALL, EXPR isMethaneLevelCritical() [L96] int retValue_acc ; [L99] retValue_acc = methaneLevelCritical [L100] return (retValue_acc); [L856] RET, EXPR isMethaneLevelCritical() [L856] tmp = isMethaneLevelCritical() [L858] COND FALSE !(\read(tmp)) [L862] CALL, EXPR getWaterLevel() [L128] int retValue_acc ; [L131] retValue_acc = waterLevel [L132] return (retValue_acc); [L862] RET, EXPR getWaterLevel() [L862] tmp___0 = getWaterLevel() [L864] COND FALSE !(tmp___0 == 2) [L719] RET __utac_acc__Specification3_spec__1() [L681] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 638]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L57] int waterLevel = 1; [L58] int methaneLevelCritical = 0; [L151] int cleanupTimeShifts = 4; [L422] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L696] int pumpRunning = 0; [L697] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L230] int retValue_acc ; [L231] int tmp ; [L235] FCALL select_helpers() [L236] FCALL select_features() [L237] CALL, EXPR valid_product() [L909] int retValue_acc ; [L912] retValue_acc = 1 [L913] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L237] RET, EXPR valid_product() [L237] tmp = valid_product() [L239] COND TRUE \read(tmp) [L241] FCALL setup() [L242] CALL runTest() [L221] CALL test() [L629] int splverifierCounter ; [L630] int tmp ; [L631] int tmp___0 ; [L632] int tmp___1 ; [L633] int tmp___2 ; [L636] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L638] COND TRUE 1 [L640] COND TRUE splverifierCounter < 4 [L646] tmp = __VERIFIER_nondet_int() [L648] COND FALSE !(\read(tmp)) [L656] tmp___0 = __VERIFIER_nondet_int() [L658] COND FALSE !(\read(tmp___0)) [L666] tmp___2 = __VERIFIER_nondet_int() [L668] COND TRUE \read(tmp___2) [L681] CALL timeShift() [L704] COND FALSE !(\read(pumpRunning)) [L711] COND TRUE \read(systemActive) [L713] CALL processEnvironment() [L733] int tmp ; [L736] COND TRUE ! pumpRunning [L738] CALL, EXPR isHighWaterLevel() [L830] int retValue_acc ; [L831] int tmp ; [L832] int tmp___0 ; [L836] CALL, EXPR isHighWaterSensorDry() [L137] int retValue_acc ; [L140] COND TRUE waterLevel < 2 [L141] retValue_acc = 1 [L142] return (retValue_acc); [L836] RET, EXPR isHighWaterSensorDry() [L836] tmp = isHighWaterSensorDry() [L838] COND TRUE \read(tmp) [L839] tmp___0 = 0 [L843] retValue_acc = tmp___0 [L844] return (retValue_acc); [L738] RET, EXPR isHighWaterLevel() [L738] tmp = isHighWaterLevel() [L740] COND FALSE !(\read(tmp)) [L746] FCALL processEnvironment__wrappee__base() [L713] RET processEnvironment() [L719] CALL __utac_acc__Specification3_spec__1() [L850] int tmp ; [L851] int tmp___0 ; [L852] int tmp___1 ; [L856] CALL, EXPR isMethaneLevelCritical() [L96] int retValue_acc ; [L99] retValue_acc = methaneLevelCritical [L100] return (retValue_acc); [L856] RET, EXPR isMethaneLevelCritical() [L856] tmp = isMethaneLevelCritical() [L858] COND FALSE !(\read(tmp)) [L862] CALL, EXPR getWaterLevel() [L128] int retValue_acc ; [L131] retValue_acc = waterLevel [L132] return (retValue_acc); [L862] RET, EXPR getWaterLevel() [L862] tmp___0 = getWaterLevel() [L864] COND FALSE !(tmp___0 == 2) [L719] RET __utac_acc__Specification3_spec__1() [L681] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-17 08:47:15,708 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)