./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product48.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12c501a-2a62-4323-b35e-788a5886fd14/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12c501a-2a62-4323-b35e-788a5886fd14/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12c501a-2a62-4323-b35e-788a5886fd14/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12c501a-2a62-4323-b35e-788a5886fd14/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product48.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12c501a-2a62-4323-b35e-788a5886fd14/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12c501a-2a62-4323-b35e-788a5886fd14/bin/uautomizer-verify-uCwYo4JHxu --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 797436b26f0180d1dd4048b2036765c1f76ffc9f34d72e35837e9efcc5780486 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:55:39,391 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:55:39,483 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12c501a-2a62-4323-b35e-788a5886fd14/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-19 07:55:39,489 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:55:39,490 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:55:39,517 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:55:39,518 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:55:39,518 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:55:39,520 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:55:39,520 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:55:39,521 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:55:39,522 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-19 07:55:39,522 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-19 07:55:39,523 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-19 07:55:39,524 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-19 07:55:39,524 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-19 07:55:39,525 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-19 07:55:39,526 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:55:39,526 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-19 07:55:39,527 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:55:39,528 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:55:39,528 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:55:39,529 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:55:39,529 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-19 07:55:39,530 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-19 07:55:39,531 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-19 07:55:39,531 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:55:39,532 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:55:39,532 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:55:39,533 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-19 07:55:39,533 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:55:39,534 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:55:39,534 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:55:39,534 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:55:39,535 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:55:39,536 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-19 07:55:39,536 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12c501a-2a62-4323-b35e-788a5886fd14/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12c501a-2a62-4323-b35e-788a5886fd14/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 797436b26f0180d1dd4048b2036765c1f76ffc9f34d72e35837e9efcc5780486 [2023-11-19 07:55:39,830 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:55:39,864 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:55:39,867 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:55:39,869 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:55:39,869 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:55:39,871 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12c501a-2a62-4323-b35e-788a5886fd14/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/product-lines/minepump_spec2_product48.cil.c [2023-11-19 07:55:43,087 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:55:43,371 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:55:43,375 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12c501a-2a62-4323-b35e-788a5886fd14/sv-benchmarks/c/product-lines/minepump_spec2_product48.cil.c [2023-11-19 07:55:43,396 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12c501a-2a62-4323-b35e-788a5886fd14/bin/uautomizer-verify-uCwYo4JHxu/data/ef20bf581/031739d8950e4a878807e9719d10b340/FLAG86dbe8341 [2023-11-19 07:55:43,416 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12c501a-2a62-4323-b35e-788a5886fd14/bin/uautomizer-verify-uCwYo4JHxu/data/ef20bf581/031739d8950e4a878807e9719d10b340 [2023-11-19 07:55:43,423 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:55:43,428 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:55:43,430 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:55:43,431 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:55:43,436 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:55:43,437 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:55:43" (1/1) ... [2023-11-19 07:55:43,438 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c3e8404 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:43, skipping insertion in model container [2023-11-19 07:55:43,438 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:55:43" (1/1) ... [2023-11-19 07:55:43,514 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:55:43,867 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:55:43,881 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:55:43,892 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [49] [2023-11-19 07:55:43,894 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [150] [2023-11-19 07:55:43,894 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [188] [2023-11-19 07:55:43,895 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [261] [2023-11-19 07:55:43,895 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [484] [2023-11-19 07:55:43,895 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [524] [2023-11-19 07:55:43,895 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [890] [2023-11-19 07:55:43,896 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [899] [2023-11-19 07:55:43,964 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:55:43,986 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:55:43,986 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:43 WrapperNode [2023-11-19 07:55:43,986 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:55:43,988 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:55:43,988 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:55:43,988 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:55:43,996 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:43" (1/1) ... [2023-11-19 07:55:44,011 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:43" (1/1) ... [2023-11-19 07:55:44,058 INFO L138 Inliner]: procedures = 57, calls = 104, calls flagged for inlining = 57, calls inlined = 102, statements flattened = 683 [2023-11-19 07:55:44,058 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:55:44,059 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:55:44,059 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:55:44,059 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:55:44,070 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:43" (1/1) ... [2023-11-19 07:55:44,070 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:43" (1/1) ... [2023-11-19 07:55:44,075 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:43" (1/1) ... [2023-11-19 07:55:44,076 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:43" (1/1) ... [2023-11-19 07:55:44,090 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:43" (1/1) ... [2023-11-19 07:55:44,122 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:43" (1/1) ... [2023-11-19 07:55:44,124 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:43" (1/1) ... [2023-11-19 07:55:44,127 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:43" (1/1) ... [2023-11-19 07:55:44,147 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:55:44,148 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:55:44,148 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:55:44,148 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:55:44,149 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:43" (1/1) ... [2023-11-19 07:55:44,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:55:44,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12c501a-2a62-4323-b35e-788a5886fd14/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:55:44,179 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12c501a-2a62-4323-b35e-788a5886fd14/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:55:44,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12c501a-2a62-4323-b35e-788a5886fd14/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-19 07:55:44,215 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:55:44,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:55:44,216 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:55:44,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:55:44,336 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:55:44,338 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:55:44,889 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:55:44,914 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:55:44,914 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 07:55:44,920 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:55:44 BoogieIcfgContainer [2023-11-19 07:55:44,921 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:55:44,924 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-19 07:55:44,925 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-19 07:55:44,929 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-19 07:55:44,930 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:55:44,930 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 07:55:43" (1/3) ... [2023-11-19 07:55:44,931 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@79940f56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 07:55:44, skipping insertion in model container [2023-11-19 07:55:44,931 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:55:44,931 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:43" (2/3) ... [2023-11-19 07:55:44,932 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@79940f56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 07:55:44, skipping insertion in model container [2023-11-19 07:55:44,932 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:55:44,932 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:55:44" (3/3) ... [2023-11-19 07:55:44,933 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product48.cil.c [2023-11-19 07:55:44,991 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-19 07:55:44,991 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-19 07:55:44,991 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-19 07:55:44,992 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-19 07:55:44,992 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-19 07:55:44,992 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-19 07:55:44,992 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-19 07:55:44,992 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-19 07:55:44,998 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 192 states, 191 states have (on average 1.356020942408377) internal successors, (259), 191 states have internal predecessors, (259), 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) [2023-11-19 07:55:45,032 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 125 [2023-11-19 07:55:45,032 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:55:45,033 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:55:45,041 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:55:45,041 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:55:45,042 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-19 07:55:45,043 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 192 states, 191 states have (on average 1.356020942408377) internal successors, (259), 191 states have internal predecessors, (259), 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) [2023-11-19 07:55:45,055 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 125 [2023-11-19 07:55:45,055 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:55:45,055 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:55:45,057 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:55:45,057 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:55:45,063 INFO L748 eck$LassoCheckResult]: Stem: 35#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(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;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 49#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret52#1, main_~retValue_acc~11#1, main_~tmp~9#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 28#select_helpers_returnLabel#1true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 150#select_features_returnLabel#1true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~4#1;havoc valid_product_~retValue_acc~4#1;valid_product_~retValue_acc~4#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~4#1; 128#valid_product_returnLabel#1true main_#t~ret52#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~4#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret52#1;havoc main_#t~ret52#1; 2#L983true assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 104#setup_returnLabel#1true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 148#__utac_acc__Specification2_spec__1_returnLabel#1true assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet10#1, test_#t~nondet11#1, test_#t~nondet12#1, test_#t~nondet13#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 97#L203-2true [2023-11-19 07:55:45,064 INFO L750 eck$LassoCheckResult]: Loop: 97#L203-2true assume !false; 153#L204true assume test_~splverifierCounter~0#1 < 4; 110#L205true havoc test_#t~nondet10#1;test_~tmp~0#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1; 179#L213true assume !(0 != test_~tmp~0#1); 16#L213-2true havoc test_#t~nondet11#1;test_~tmp___0~0#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1; 95#L223true assume !(0 != test_~tmp___0~0#1); 67#L223-2true havoc test_#t~nondet12#1;test_~tmp___2~0#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1; 94#L233true assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet13#1;test_~tmp___1~0#1 := test_#t~nondet13#1;havoc test_#t~nondet13#1; 34#L241true assume !(0 != test_~tmp___1~0#1); 76#L241-2true assume { :begin_inline_timeShift } true; 126#L274true assume !(0 != ~pumpRunning~0); 181#L274-2true assume !(0 != ~systemActive~0); 137#L281-1true assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret27#1, __utac_acc__Specification2_spec__2_#t~ret28#1, __utac_acc__Specification2_spec__2_~tmp~5#1, __utac_acc__Specification2_spec__2_~tmp___0~2#1;havoc __utac_acc__Specification2_spec__2_~tmp~5#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~2#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; 90#isMethaneLevelCritical_returnLabel#4true __utac_acc__Specification2_spec__2_#t~ret27#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~5#1 := __utac_acc__Specification2_spec__2_#t~ret27#1;havoc __utac_acc__Specification2_spec__2_#t~ret27#1; 96#L503true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~5#1);~methAndRunningLastTime~0 := 0; 88#L503-1true havoc __utac_acc__Specification2_spec__2_#t~ret27#1, __utac_acc__Specification2_spec__2_#t~ret28#1, __utac_acc__Specification2_spec__2_~tmp~5#1, __utac_acc__Specification2_spec__2_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification2_spec__2 } true; 86#timeShift_returnLabel#1true assume { :end_inline_timeShift } true; 97#L203-2true [2023-11-19 07:55:45,071 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:45,071 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2023-11-19 07:55:45,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:55:45,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046684609] [2023-11-19 07:55:45,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:45,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:55:45,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:55:45,191 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:55:45,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:55:45,252 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:55:45,256 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:45,256 INFO L85 PathProgramCache]: Analyzing trace with hash 679321817, now seen corresponding path program 1 times [2023-11-19 07:55:45,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:55:45,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298742309] [2023-11-19 07:55:45,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:45,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:55:45,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:55:45,271 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:55:45,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:55:45,290 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:55:45,291 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:45,292 INFO L85 PathProgramCache]: Analyzing trace with hash -56619760, now seen corresponding path program 1 times [2023-11-19 07:55:45,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:55:45,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311010938] [2023-11-19 07:55:45,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:45,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:55:45,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:45,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:55:45,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:55:45,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311010938] [2023-11-19 07:55:45,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311010938] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:55:45,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:55:45,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:55:45,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648651989] [2023-11-19 07:55:45,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:55:45,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:55:45,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:55:45,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:55:45,744 INFO L87 Difference]: Start difference. First operand has 192 states, 191 states have (on average 1.356020942408377) internal successors, (259), 191 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:55:45,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:55:45,993 INFO L93 Difference]: Finished difference Result 607 states and 798 transitions. [2023-11-19 07:55:45,994 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 607 states and 798 transitions. [2023-11-19 07:55:46,018 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 396 [2023-11-19 07:55:46,034 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 607 states to 567 states and 758 transitions. [2023-11-19 07:55:46,036 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 567 [2023-11-19 07:55:46,039 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 567 [2023-11-19 07:55:46,040 INFO L73 IsDeterministic]: Start isDeterministic. Operand 567 states and 758 transitions. [2023-11-19 07:55:46,050 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:55:46,050 INFO L218 hiAutomatonCegarLoop]: Abstraction has 567 states and 758 transitions. [2023-11-19 07:55:46,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states and 758 transitions. [2023-11-19 07:55:46,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 231. [2023-11-19 07:55:46,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 231 states have (on average 1.3376623376623376) internal successors, (309), 230 states have internal predecessors, (309), 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) [2023-11-19 07:55:46,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 309 transitions. [2023-11-19 07:55:46,116 INFO L240 hiAutomatonCegarLoop]: Abstraction has 231 states and 309 transitions. [2023-11-19 07:55:46,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:55:46,121 INFO L428 stractBuchiCegarLoop]: Abstraction has 231 states and 309 transitions. [2023-11-19 07:55:46,122 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-19 07:55:46,122 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 231 states and 309 transitions. [2023-11-19 07:55:46,124 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 161 [2023-11-19 07:55:46,124 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:55:46,124 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:55:46,125 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:55:46,125 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] [2023-11-19 07:55:46,126 INFO L748 eck$LassoCheckResult]: Stem: 880#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(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;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 881#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret52#1, main_~retValue_acc~11#1, main_~tmp~9#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 866#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 867#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~4#1;havoc valid_product_~retValue_acc~4#1;valid_product_~retValue_acc~4#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~4#1; 972#valid_product_returnLabel#1 main_#t~ret52#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~4#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret52#1;havoc main_#t~ret52#1; 817#L983 assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 818#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 955#__utac_acc__Specification2_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet10#1, test_#t~nondet11#1, test_#t~nondet12#1, test_#t~nondet13#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 942#L203-2 [2023-11-19 07:55:46,126 INFO L750 eck$LassoCheckResult]: Loop: 942#L203-2 assume !false; 952#L204 assume test_~splverifierCounter~0#1 < 4; 959#L205 havoc test_#t~nondet10#1;test_~tmp~0#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1; 960#L213 assume !(0 != test_~tmp~0#1); 841#L213-2 havoc test_#t~nondet11#1;test_~tmp___0~0#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1; 842#L223 assume !(0 != test_~tmp___0~0#1); 831#L223-2 havoc test_#t~nondet12#1;test_~tmp___2~0#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1; 919#L233 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 923#startSystem_returnLabel#1 assume { :end_inline_startSystem } true; 878#L241-2 assume { :begin_inline_timeShift } true; 928#L274 assume !(0 != ~pumpRunning~0); 860#L274-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret15#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 870#L332 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret14#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1#1; 871#L306-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 819#processEnvironment__wrappee__base_returnLabel#4 assume { :end_inline_processEnvironment__wrappee__base } true; 820#L306-3 havoc processEnvironment__wrappee__methaneQuery_#t~ret14#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 843#L332-1 havoc processEnvironment_#t~ret15#1, processEnvironment_~tmp~2#1;assume { :end_inline_processEnvironment } true; 889#L281-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret27#1, __utac_acc__Specification2_spec__2_#t~ret28#1, __utac_acc__Specification2_spec__2_~tmp~5#1, __utac_acc__Specification2_spec__2_~tmp___0~2#1;havoc __utac_acc__Specification2_spec__2_~tmp~5#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~2#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; 945#isMethaneLevelCritical_returnLabel#4 __utac_acc__Specification2_spec__2_#t~ret27#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~5#1 := __utac_acc__Specification2_spec__2_#t~ret27#1;havoc __utac_acc__Specification2_spec__2_#t~ret27#1; 946#L503 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~5#1);~methAndRunningLastTime~0 := 0; 864#L503-1 havoc __utac_acc__Specification2_spec__2_#t~ret27#1, __utac_acc__Specification2_spec__2_#t~ret28#1, __utac_acc__Specification2_spec__2_~tmp~5#1, __utac_acc__Specification2_spec__2_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification2_spec__2 } true; 941#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 942#L203-2 [2023-11-19 07:55:46,127 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:46,127 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2023-11-19 07:55:46,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:55:46,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469512735] [2023-11-19 07:55:46,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:46,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:55:46,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:55:46,140 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:55:46,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:55:46,152 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:55:46,153 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:46,153 INFO L85 PathProgramCache]: Analyzing trace with hash -1143276633, now seen corresponding path program 1 times [2023-11-19 07:55:46,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:55:46,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950026599] [2023-11-19 07:55:46,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:46,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:55:46,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:46,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:55:46,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:55:46,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950026599] [2023-11-19 07:55:46,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950026599] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:55:46,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:55:46,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:55:46,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436242488] [2023-11-19 07:55:46,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:55:46,182 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-19 07:55:46,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:55:46,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:55:46,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:55:46,184 INFO L87 Difference]: Start difference. First operand 231 states and 309 transitions. cyclomatic complexity: 81 Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:55:46,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:55:46,265 INFO L93 Difference]: Finished difference Result 291 states and 373 transitions. [2023-11-19 07:55:46,265 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 291 states and 373 transitions. [2023-11-19 07:55:46,269 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 207 [2023-11-19 07:55:46,272 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 291 states to 291 states and 373 transitions. [2023-11-19 07:55:46,273 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 291 [2023-11-19 07:55:46,274 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 291 [2023-11-19 07:55:46,274 INFO L73 IsDeterministic]: Start isDeterministic. Operand 291 states and 373 transitions. [2023-11-19 07:55:46,276 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:55:46,278 INFO L218 hiAutomatonCegarLoop]: Abstraction has 291 states and 373 transitions. [2023-11-19 07:55:46,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states and 373 transitions. [2023-11-19 07:55:46,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 291. [2023-11-19 07:55:46,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 291 states have (on average 1.2817869415807561) internal successors, (373), 290 states have internal predecessors, (373), 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) [2023-11-19 07:55:46,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 373 transitions. [2023-11-19 07:55:46,304 INFO L240 hiAutomatonCegarLoop]: Abstraction has 291 states and 373 transitions. [2023-11-19 07:55:46,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:55:46,306 INFO L428 stractBuchiCegarLoop]: Abstraction has 291 states and 373 transitions. [2023-11-19 07:55:46,306 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-19 07:55:46,306 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 291 states and 373 transitions. [2023-11-19 07:55:46,308 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 207 [2023-11-19 07:55:46,308 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:55:46,308 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:55:46,310 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:55:46,313 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] [2023-11-19 07:55:46,313 INFO L748 eck$LassoCheckResult]: Stem: 1406#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(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;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 1407#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret52#1, main_~retValue_acc~11#1, main_~tmp~9#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 1393#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1394#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~4#1;havoc valid_product_~retValue_acc~4#1;valid_product_~retValue_acc~4#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~4#1; 1505#valid_product_returnLabel#1 main_#t~ret52#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~4#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret52#1;havoc main_#t~ret52#1; 1345#L983 assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 1346#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 1479#__utac_acc__Specification2_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet10#1, test_#t~nondet11#1, test_#t~nondet12#1, test_#t~nondet13#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1465#L203-2 [2023-11-19 07:55:46,314 INFO L750 eck$LassoCheckResult]: Loop: 1465#L203-2 assume !false; 1475#L204 assume test_~splverifierCounter~0#1 < 4; 1485#L205 havoc test_#t~nondet10#1;test_~tmp~0#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1; 1486#L213 assume !(0 != test_~tmp~0#1); 1367#L213-2 havoc test_#t~nondet11#1;test_~tmp___0~0#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1; 1368#L223 assume !(0 != test_~tmp___0~0#1); 1357#L223-2 havoc test_#t~nondet12#1;test_~tmp___2~0#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1; 1443#L233 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 1447#startSystem_returnLabel#1 assume { :end_inline_startSystem } true; 1404#L241-2 assume { :begin_inline_timeShift } true; 1452#L274 assume !(0 != ~pumpRunning~0); 1501#L274-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret15#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 1397#L332 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret14#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1#1; 1398#L306-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret26#1, isHighWaterLevel_~retValue_acc~7#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~7#1;havoc isHighWaterLevel_~tmp~4#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; 1427#L140-1 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~2#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 1422#isHighWaterSensorDry_returnLabel#2 isHighWaterLevel_#t~ret26#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret26#1;havoc isHighWaterLevel_#t~ret26#1; 1377#L451-3 assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~1#1 := 0; 1378#L451-5 isHighWaterLevel_~retValue_acc~7#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; 1456#isHighWaterLevel_returnLabel#2 processEnvironment__wrappee__methaneQuery_#t~ret14#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret26#1, isHighWaterLevel_~retValue_acc~7#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__methaneQuery_~tmp~1#1 := processEnvironment__wrappee__methaneQuery_#t~ret14#1;havoc processEnvironment__wrappee__methaneQuery_#t~ret14#1; 1347#L310-3 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1349#processEnvironment__wrappee__base_returnLabel#3 assume { :end_inline_processEnvironment__wrappee__base } true; 1369#L306-3 havoc processEnvironment__wrappee__methaneQuery_#t~ret14#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 1370#L332-1 havoc processEnvironment_#t~ret15#1, processEnvironment_~tmp~2#1;assume { :end_inline_processEnvironment } true; 1415#L281-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret27#1, __utac_acc__Specification2_spec__2_#t~ret28#1, __utac_acc__Specification2_spec__2_~tmp~5#1, __utac_acc__Specification2_spec__2_~tmp___0~2#1;havoc __utac_acc__Specification2_spec__2_~tmp~5#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~2#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; 1468#isMethaneLevelCritical_returnLabel#4 __utac_acc__Specification2_spec__2_#t~ret27#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~5#1 := __utac_acc__Specification2_spec__2_#t~ret27#1;havoc __utac_acc__Specification2_spec__2_#t~ret27#1; 1469#L503 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~5#1);~methAndRunningLastTime~0 := 0; 1391#L503-1 havoc __utac_acc__Specification2_spec__2_#t~ret27#1, __utac_acc__Specification2_spec__2_#t~ret28#1, __utac_acc__Specification2_spec__2_~tmp~5#1, __utac_acc__Specification2_spec__2_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification2_spec__2 } true; 1464#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1465#L203-2 [2023-11-19 07:55:46,315 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:46,316 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2023-11-19 07:55:46,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:55:46,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534118517] [2023-11-19 07:55:46,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:46,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:55:46,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:55:46,342 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:55:46,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:55:46,364 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:55:46,365 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:46,365 INFO L85 PathProgramCache]: Analyzing trace with hash 1298141917, now seen corresponding path program 1 times [2023-11-19 07:55:46,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:55:46,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995680254] [2023-11-19 07:55:46,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:46,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:55:46,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:46,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:55:46,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:55:46,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995680254] [2023-11-19 07:55:46,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995680254] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:55:46,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:55:46,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:55:46,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068872422] [2023-11-19 07:55:46,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:55:46,448 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-19 07:55:46,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:55:46,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:55:46,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:55:46,449 INFO L87 Difference]: Start difference. First operand 291 states and 373 transitions. cyclomatic complexity: 85 Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 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) [2023-11-19 07:55:46,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:55:46,551 INFO L93 Difference]: Finished difference Result 580 states and 732 transitions. [2023-11-19 07:55:46,551 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 580 states and 732 transitions. [2023-11-19 07:55:46,556 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 418 [2023-11-19 07:55:46,561 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 580 states to 580 states and 732 transitions. [2023-11-19 07:55:46,561 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 580 [2023-11-19 07:55:46,562 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 580 [2023-11-19 07:55:46,562 INFO L73 IsDeterministic]: Start isDeterministic. Operand 580 states and 732 transitions. [2023-11-19 07:55:46,563 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:55:46,563 INFO L218 hiAutomatonCegarLoop]: Abstraction has 580 states and 732 transitions. [2023-11-19 07:55:46,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states and 732 transitions. [2023-11-19 07:55:46,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 303. [2023-11-19 07:55:46,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 303 states have (on average 1.2706270627062706) internal successors, (385), 302 states have internal predecessors, (385), 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) [2023-11-19 07:55:46,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 385 transitions. [2023-11-19 07:55:46,578 INFO L240 hiAutomatonCegarLoop]: Abstraction has 303 states and 385 transitions. [2023-11-19 07:55:46,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:55:46,581 INFO L428 stractBuchiCegarLoop]: Abstraction has 303 states and 385 transitions. [2023-11-19 07:55:46,581 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-19 07:55:46,581 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 303 states and 385 transitions. [2023-11-19 07:55:46,583 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 215 [2023-11-19 07:55:46,583 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:55:46,584 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:55:46,586 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:55:46,586 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] [2023-11-19 07:55:46,586 INFO L748 eck$LassoCheckResult]: Stem: 2287#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(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;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 2288#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret52#1, main_~retValue_acc~11#1, main_~tmp~9#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 2273#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2274#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~4#1;havoc valid_product_~retValue_acc~4#1;valid_product_~retValue_acc~4#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~4#1; 2396#valid_product_returnLabel#1 main_#t~ret52#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~4#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret52#1;havoc main_#t~ret52#1; 2225#L983 assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 2226#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 2370#__utac_acc__Specification2_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet10#1, test_#t~nondet11#1, test_#t~nondet12#1, test_#t~nondet13#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2354#L203-2 [2023-11-19 07:55:46,587 INFO L750 eck$LassoCheckResult]: Loop: 2354#L203-2 assume !false; 2366#L204 assume test_~splverifierCounter~0#1 < 4; 2416#L205 havoc test_#t~nondet10#1;test_~tmp~0#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1; 2510#L213 assume !(0 != test_~tmp~0#1); 2508#L213-2 havoc test_#t~nondet11#1;test_~tmp___0~0#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1; 2507#L223 assume !(0 != test_~tmp___0~0#1); 2506#L223-2 havoc test_#t~nondet12#1;test_~tmp___2~0#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1; 2505#L233 assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet13#1;test_~tmp___1~0#1 := test_#t~nondet13#1;havoc test_#t~nondet13#1; 2504#L241 assume !(0 != test_~tmp___1~0#1); 2336#L241-2 assume { :begin_inline_timeShift } true; 2344#L274 assume !(0 != ~pumpRunning~0); 2393#L274-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret15#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 2277#L332 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret14#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1#1; 2278#L306-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret26#1, isHighWaterLevel_~retValue_acc~7#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~7#1;havoc isHighWaterLevel_~tmp~4#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; 2309#L140-1 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~2#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 2318#isHighWaterSensorDry_returnLabel#2 isHighWaterLevel_#t~ret26#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret26#1;havoc isHighWaterLevel_#t~ret26#1; 2259#L451-3 assume !(0 != isHighWaterLevel_~tmp~4#1);isHighWaterLevel_~tmp___0~1#1 := 1; 2260#L451-5 isHighWaterLevel_~retValue_acc~7#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; 2345#isHighWaterLevel_returnLabel#2 processEnvironment__wrappee__methaneQuery_#t~ret14#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret26#1, isHighWaterLevel_~retValue_acc~7#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__methaneQuery_~tmp~1#1 := processEnvironment__wrappee__methaneQuery_#t~ret14#1;havoc processEnvironment__wrappee__methaneQuery_#t~ret14#1; 2227#L310-3 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2229#processEnvironment__wrappee__base_returnLabel#3 assume { :end_inline_processEnvironment__wrappee__base } true; 2249#L306-3 havoc processEnvironment__wrappee__methaneQuery_#t~ret14#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 2250#L332-1 havoc processEnvironment_#t~ret15#1, processEnvironment_~tmp~2#1;assume { :end_inline_processEnvironment } true; 2296#L281-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret27#1, __utac_acc__Specification2_spec__2_#t~ret28#1, __utac_acc__Specification2_spec__2_~tmp~5#1, __utac_acc__Specification2_spec__2_~tmp___0~2#1;havoc __utac_acc__Specification2_spec__2_~tmp~5#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~2#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; 2357#isMethaneLevelCritical_returnLabel#4 __utac_acc__Specification2_spec__2_#t~ret27#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~5#1 := __utac_acc__Specification2_spec__2_#t~ret27#1;havoc __utac_acc__Specification2_spec__2_#t~ret27#1; 2358#L503 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~5#1);~methAndRunningLastTime~0 := 0; 2271#L503-1 havoc __utac_acc__Specification2_spec__2_#t~ret27#1, __utac_acc__Specification2_spec__2_#t~ret28#1, __utac_acc__Specification2_spec__2_~tmp~5#1, __utac_acc__Specification2_spec__2_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification2_spec__2 } true; 2353#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 2354#L203-2 [2023-11-19 07:55:46,589 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:46,589 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2023-11-19 07:55:46,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:55:46,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991280621] [2023-11-19 07:55:46,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:46,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:55:46,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:55:46,608 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:55:46,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:55:46,635 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:55:46,641 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:46,641 INFO L85 PathProgramCache]: Analyzing trace with hash -662157747, now seen corresponding path program 1 times [2023-11-19 07:55:46,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:55:46,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599144673] [2023-11-19 07:55:46,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:46,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:55:46,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:46,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:55:46,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:55:46,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599144673] [2023-11-19 07:55:46,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599144673] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:55:46,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:55:46,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:55:46,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449007544] [2023-11-19 07:55:46,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:55:46,735 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-19 07:55:46,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:55:46,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:55:46,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:55:46,736 INFO L87 Difference]: Start difference. First operand 303 states and 385 transitions. cyclomatic complexity: 85 Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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) [2023-11-19 07:55:46,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:55:46,875 INFO L93 Difference]: Finished difference Result 565 states and 711 transitions. [2023-11-19 07:55:46,876 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 565 states and 711 transitions. [2023-11-19 07:55:46,880 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 408 [2023-11-19 07:55:46,885 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 565 states to 565 states and 711 transitions. [2023-11-19 07:55:46,885 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 565 [2023-11-19 07:55:46,886 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 565 [2023-11-19 07:55:46,886 INFO L73 IsDeterministic]: Start isDeterministic. Operand 565 states and 711 transitions. [2023-11-19 07:55:46,887 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:55:46,887 INFO L218 hiAutomatonCegarLoop]: Abstraction has 565 states and 711 transitions. [2023-11-19 07:55:46,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states and 711 transitions. [2023-11-19 07:55:46,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 321. [2023-11-19 07:55:46,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 321 states have (on average 1.2554517133956387) internal successors, (403), 320 states have internal predecessors, (403), 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) [2023-11-19 07:55:46,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 403 transitions. [2023-11-19 07:55:46,897 INFO L240 hiAutomatonCegarLoop]: Abstraction has 321 states and 403 transitions. [2023-11-19 07:55:46,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:55:46,898 INFO L428 stractBuchiCegarLoop]: Abstraction has 321 states and 403 transitions. [2023-11-19 07:55:46,899 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-11-19 07:55:46,899 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 321 states and 403 transitions. [2023-11-19 07:55:46,901 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 227 [2023-11-19 07:55:46,901 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:55:46,901 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:55:46,902 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:55:46,902 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] [2023-11-19 07:55:46,903 INFO L748 eck$LassoCheckResult]: Stem: 3164#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(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;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 3165#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret52#1, main_~retValue_acc~11#1, main_~tmp~9#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 3150#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 3151#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~4#1;havoc valid_product_~retValue_acc~4#1;valid_product_~retValue_acc~4#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~4#1; 3273#valid_product_returnLabel#1 main_#t~ret52#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~4#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret52#1;havoc main_#t~ret52#1; 3105#L983 assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 3106#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 3245#__utac_acc__Specification2_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet10#1, test_#t~nondet11#1, test_#t~nondet12#1, test_#t~nondet13#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 3292#L203-2 [2023-11-19 07:55:46,903 INFO L750 eck$LassoCheckResult]: Loop: 3292#L203-2 assume !false; 3391#L204 assume test_~splverifierCounter~0#1 < 4; 3252#L205 havoc test_#t~nondet10#1;test_~tmp~0#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1; 3253#L213 assume !(0 != test_~tmp~0#1); 3126#L213-2 havoc test_#t~nondet11#1;test_~tmp___0~0#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1; 3127#L223 assume !(0 != test_~tmp___0~0#1); 3116#L223-2 havoc test_#t~nondet12#1;test_~tmp___2~0#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1; 3207#L233 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 3209#startSystem_returnLabel#1 assume { :end_inline_startSystem } true; 3162#L241-2 assume { :begin_inline_timeShift } true; 3215#L274 assume !(0 != ~pumpRunning~0); 3311#L274-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret15#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 3156#L332 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret14#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1#1; 3157#L306-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret26#1, isHighWaterLevel_~retValue_acc~7#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~7#1;havoc isHighWaterLevel_~tmp~4#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; 3186#L140-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 3192#isHighWaterSensorDry_returnLabel#2 isHighWaterLevel_#t~ret26#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret26#1;havoc isHighWaterLevel_#t~ret26#1; 3332#L451-3 assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~1#1 := 0; 3327#L451-5 isHighWaterLevel_~retValue_acc~7#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; 3322#isHighWaterLevel_returnLabel#2 processEnvironment__wrappee__methaneQuery_#t~ret14#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret26#1, isHighWaterLevel_~retValue_acc~7#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__methaneQuery_~tmp~1#1 := processEnvironment__wrappee__methaneQuery_#t~ret14#1;havoc processEnvironment__wrappee__methaneQuery_#t~ret14#1; 3314#L310-3 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 3172#processEnvironment__wrappee__base_returnLabel#3 assume { :end_inline_processEnvironment__wrappee__base } true; 3128#L306-3 havoc processEnvironment__wrappee__methaneQuery_#t~ret14#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 3129#L332-1 havoc processEnvironment_#t~ret15#1, processEnvironment_~tmp~2#1;assume { :end_inline_processEnvironment } true; 3173#L281-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret27#1, __utac_acc__Specification2_spec__2_#t~ret28#1, __utac_acc__Specification2_spec__2_~tmp~5#1, __utac_acc__Specification2_spec__2_~tmp___0~2#1;havoc __utac_acc__Specification2_spec__2_~tmp~5#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~2#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; 3425#isMethaneLevelCritical_returnLabel#4 __utac_acc__Specification2_spec__2_#t~ret27#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~5#1 := __utac_acc__Specification2_spec__2_#t~ret27#1;havoc __utac_acc__Specification2_spec__2_#t~ret27#1; 3395#L503 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~5#1);~methAndRunningLastTime~0 := 0; 3393#L503-1 havoc __utac_acc__Specification2_spec__2_#t~ret27#1, __utac_acc__Specification2_spec__2_#t~ret28#1, __utac_acc__Specification2_spec__2_~tmp~5#1, __utac_acc__Specification2_spec__2_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification2_spec__2 } true; 3392#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 3292#L203-2 [2023-11-19 07:55:46,903 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:46,904 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 5 times [2023-11-19 07:55:46,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:55:46,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304042745] [2023-11-19 07:55:46,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:46,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:55:46,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:55:46,912 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:55:46,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:55:46,920 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:55:46,921 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:46,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1985708129, now seen corresponding path program 1 times [2023-11-19 07:55:46,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:55:46,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222068407] [2023-11-19 07:55:46,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:46,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:55:46,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:55:46,929 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:55:46,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:55:46,939 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:55:46,939 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:46,940 INFO L85 PathProgramCache]: Analyzing trace with hash -986637560, now seen corresponding path program 1 times [2023-11-19 07:55:46,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:55:46,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195609153] [2023-11-19 07:55:46,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:46,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:55:46,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:55:46,974 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:55:46,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:55:46,987 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:55:48,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:55:48,202 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:55:48,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:55:48,295 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 07:55:48 BoogieIcfgContainer [2023-11-19 07:55:48,295 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-19 07:55:48,295 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:55:48,295 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:55:48,296 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:55:48,296 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:55:44" (3/4) ... [2023-11-19 07:55:48,297 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2023-11-19 07:55:48,391 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12c501a-2a62-4323-b35e-788a5886fd14/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 07:55:48,394 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:55:48,395 INFO L158 Benchmark]: Toolchain (without parser) took 4967.06ms. Allocated memory was 117.4MB in the beginning and 167.8MB in the end (delta: 50.3MB). Free memory was 74.7MB in the beginning and 82.5MB in the end (delta: -7.8MB). Peak memory consumption was 45.4MB. Max. memory is 16.1GB. [2023-11-19 07:55:48,395 INFO L158 Benchmark]: CDTParser took 0.70ms. Allocated memory is still 117.4MB. Free memory was 88.8MB in the beginning and 88.6MB in the end (delta: 142.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:55:48,397 INFO L158 Benchmark]: CACSL2BoogieTranslator took 557.39ms. Allocated memory is still 117.4MB. Free memory was 74.7MB in the beginning and 55.2MB in the end (delta: 19.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-19 07:55:48,398 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.79ms. Allocated memory is still 117.4MB. Free memory was 55.2MB in the beginning and 51.7MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:55:48,399 INFO L158 Benchmark]: Boogie Preprocessor took 88.14ms. Allocated memory is still 117.4MB. Free memory was 51.7MB in the beginning and 48.9MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 07:55:48,399 INFO L158 Benchmark]: RCFGBuilder took 775.65ms. Allocated memory was 117.4MB in the beginning and 167.8MB in the end (delta: 50.3MB). Free memory was 48.9MB in the beginning and 119.0MB in the end (delta: -70.1MB). Peak memory consumption was 12.5MB. Max. memory is 16.1GB. [2023-11-19 07:55:48,400 INFO L158 Benchmark]: BuchiAutomizer took 3370.35ms. Allocated memory is still 167.8MB. Free memory was 119.0MB in the beginning and 85.7MB in the end (delta: 33.3MB). Peak memory consumption was 32.9MB. Max. memory is 16.1GB. [2023-11-19 07:55:48,400 INFO L158 Benchmark]: Witness Printer took 99.00ms. Allocated memory is still 167.8MB. Free memory was 84.6MB in the beginning and 82.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:55:48,404 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.70ms. Allocated memory is still 117.4MB. Free memory was 88.8MB in the beginning and 88.6MB in the end (delta: 142.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 557.39ms. Allocated memory is still 117.4MB. Free memory was 74.7MB in the beginning and 55.2MB in the end (delta: 19.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.79ms. Allocated memory is still 117.4MB. Free memory was 55.2MB in the beginning and 51.7MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 88.14ms. Allocated memory is still 117.4MB. Free memory was 51.7MB in the beginning and 48.9MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 775.65ms. Allocated memory was 117.4MB in the beginning and 167.8MB in the end (delta: 50.3MB). Free memory was 48.9MB in the beginning and 119.0MB in the end (delta: -70.1MB). Peak memory consumption was 12.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 3370.35ms. Allocated memory is still 167.8MB. Free memory was 119.0MB in the beginning and 85.7MB in the end (delta: 33.3MB). Peak memory consumption was 32.9MB. Max. memory is 16.1GB. * Witness Printer took 99.00ms. Allocated memory is still 167.8MB. Free memory was 84.6MB in the beginning and 82.5MB in the end (delta: 2.1MB). 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,"featureselect.i","") [150] - GenericResultAtLocation [Line: 188]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [188] - GenericResultAtLocation [Line: 261]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [261] - GenericResultAtLocation [Line: 484]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [484] - GenericResultAtLocation [Line: 524]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [524] - GenericResultAtLocation [Line: 890]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [890] - GenericResultAtLocation [Line: 899]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [899] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (4 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.4 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 321 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.2s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 2.2s. Construction of modules took 0.2s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 0. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 857 StatesRemovedByMinimization, 3 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, 1975 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1975 mSDsluCounter, 4031 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2833 mSDsCounter, 79 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 276 IncrementalHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 79 mSolverCounterUnsat, 1198 mSDtfsCounter, 276 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 203]: 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; [L266] int pumpRunning = 0; [L267] int systemActive = 1; [L486] int methAndRunningLastTime ; [L694] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L900] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L974] int retValue_acc ; [L975] int tmp ; [L979] FCALL select_helpers() [L980] FCALL select_features() [L981] CALL, EXPR valid_product() [L180] int retValue_acc ; [L183] retValue_acc = 1 [L184] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L981] RET, EXPR valid_product() [L981] tmp = valid_product() [L983] COND TRUE \read(tmp) [L985] FCALL setup() [L986] CALL runTest() [L967] CALL __utac_acc__Specification2_spec__1() [L491] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L967] RET __utac_acc__Specification2_spec__1() [L968] CALL test() [L194] int splverifierCounter ; [L195] int tmp ; [L196] int tmp___0 ; [L197] int tmp___1 ; [L198] int tmp___2 ; [L201] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L203] COND TRUE 1 [L205] COND TRUE splverifierCounter < 4 [L211] tmp = __VERIFIER_nondet_int() [L213] COND FALSE !(\read(tmp)) [L221] tmp___0 = __VERIFIER_nondet_int() [L223] COND FALSE !(\read(tmp___0)) [L231] tmp___2 = __VERIFIER_nondet_int() [L233] COND TRUE \read(tmp___2) [L235] CALL startSystem() [L480] systemActive = 1 [L235] RET startSystem() [L250] CALL timeShift() [L274] COND FALSE !(\read(pumpRunning)) [L281] COND TRUE \read(systemActive) [L283] CALL processEnvironment() [L329] int tmp ; [L332] COND FALSE !(\read(pumpRunning)) [L347] CALL processEnvironment__wrappee__methaneQuery() [L303] int tmp ; [L306] COND TRUE ! pumpRunning [L308] CALL, EXPR isHighWaterLevel() [L443] int retValue_acc ; [L444] int tmp ; [L445] int tmp___0 ; [L449] CALL, EXPR isHighWaterSensorDry() [L137] int retValue_acc ; [L140] COND TRUE waterLevel < 2 [L141] retValue_acc = 1 [L142] return (retValue_acc); [L449] RET, EXPR isHighWaterSensorDry() [L449] tmp = isHighWaterSensorDry() [L451] COND TRUE \read(tmp) [L452] tmp___0 = 0 [L456] retValue_acc = tmp___0 [L457] return (retValue_acc); [L308] RET, EXPR isHighWaterLevel() [L308] tmp = isHighWaterLevel() [L310] COND FALSE !(\read(tmp)) [L316] FCALL processEnvironment__wrappee__base() [L347] RET processEnvironment__wrappee__methaneQuery() [L283] RET processEnvironment() [L289] CALL __utac_acc__Specification2_spec__2() [L496] int tmp ; [L497] int tmp___0 ; [L501] CALL, EXPR isMethaneLevelCritical() [L96] int retValue_acc ; [L99] retValue_acc = methaneLevelCritical [L100] return (retValue_acc); [L501] RET, EXPR isMethaneLevelCritical() [L501] tmp = isMethaneLevelCritical() [L503] COND FALSE !(\read(tmp)) [L519] methAndRunningLastTime = 0 [L289] RET __utac_acc__Specification2_spec__2() [L250] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 203]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L57] int waterLevel = 1; [L58] int methaneLevelCritical = 0; [L266] int pumpRunning = 0; [L267] int systemActive = 1; [L486] int methAndRunningLastTime ; [L694] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L900] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L974] int retValue_acc ; [L975] int tmp ; [L979] FCALL select_helpers() [L980] FCALL select_features() [L981] CALL, EXPR valid_product() [L180] int retValue_acc ; [L183] retValue_acc = 1 [L184] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L981] RET, EXPR valid_product() [L981] tmp = valid_product() [L983] COND TRUE \read(tmp) [L985] FCALL setup() [L986] CALL runTest() [L967] CALL __utac_acc__Specification2_spec__1() [L491] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L967] RET __utac_acc__Specification2_spec__1() [L968] CALL test() [L194] int splverifierCounter ; [L195] int tmp ; [L196] int tmp___0 ; [L197] int tmp___1 ; [L198] int tmp___2 ; [L201] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L203] COND TRUE 1 [L205] COND TRUE splverifierCounter < 4 [L211] tmp = __VERIFIER_nondet_int() [L213] COND FALSE !(\read(tmp)) [L221] tmp___0 = __VERIFIER_nondet_int() [L223] COND FALSE !(\read(tmp___0)) [L231] tmp___2 = __VERIFIER_nondet_int() [L233] COND TRUE \read(tmp___2) [L235] CALL startSystem() [L480] systemActive = 1 [L235] RET startSystem() [L250] CALL timeShift() [L274] COND FALSE !(\read(pumpRunning)) [L281] COND TRUE \read(systemActive) [L283] CALL processEnvironment() [L329] int tmp ; [L332] COND FALSE !(\read(pumpRunning)) [L347] CALL processEnvironment__wrappee__methaneQuery() [L303] int tmp ; [L306] COND TRUE ! pumpRunning [L308] CALL, EXPR isHighWaterLevel() [L443] int retValue_acc ; [L444] int tmp ; [L445] int tmp___0 ; [L449] CALL, EXPR isHighWaterSensorDry() [L137] int retValue_acc ; [L140] COND TRUE waterLevel < 2 [L141] retValue_acc = 1 [L142] return (retValue_acc); [L449] RET, EXPR isHighWaterSensorDry() [L449] tmp = isHighWaterSensorDry() [L451] COND TRUE \read(tmp) [L452] tmp___0 = 0 [L456] retValue_acc = tmp___0 [L457] return (retValue_acc); [L308] RET, EXPR isHighWaterLevel() [L308] tmp = isHighWaterLevel() [L310] COND FALSE !(\read(tmp)) [L316] FCALL processEnvironment__wrappee__base() [L347] RET processEnvironment__wrappee__methaneQuery() [L283] RET processEnvironment() [L289] CALL __utac_acc__Specification2_spec__2() [L496] int tmp ; [L497] int tmp___0 ; [L501] CALL, EXPR isMethaneLevelCritical() [L96] int retValue_acc ; [L99] retValue_acc = methaneLevelCritical [L100] return (retValue_acc); [L501] RET, EXPR isMethaneLevelCritical() [L501] tmp = isMethaneLevelCritical() [L503] COND FALSE !(\read(tmp)) [L519] methAndRunningLastTime = 0 [L289] RET __utac_acc__Specification2_spec__2() [L250] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2023-11-19 07:55:48,463 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f12c501a-2a62-4323-b35e-788a5886fd14/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)