./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product26.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa5af06b-deb1-4406-9ec0-2a5b1fc9e83f/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa5af06b-deb1-4406-9ec0-2a5b1fc9e83f/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa5af06b-deb1-4406-9ec0-2a5b1fc9e83f/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa5af06b-deb1-4406-9ec0-2a5b1fc9e83f/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product26.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa5af06b-deb1-4406-9ec0-2a5b1fc9e83f/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa5af06b-deb1-4406-9ec0-2a5b1fc9e83f/bin/uautomizer-verify-BQ2R08f2Ya --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 cbc46b286e5e11c96810d470756281447eef671d85940129caf0210db421d14f --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 05:48:21,193 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 05:48:21,260 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa5af06b-deb1-4406-9ec0-2a5b1fc9e83f/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-29 05:48:21,264 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 05:48:21,264 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 05:48:21,295 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 05:48:21,296 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 05:48:21,296 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 05:48:21,297 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 05:48:21,297 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 05:48:21,298 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 05:48:21,299 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 05:48:21,299 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 05:48:21,300 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-29 05:48:21,300 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-29 05:48:21,301 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-29 05:48:21,301 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-29 05:48:21,302 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-29 05:48:21,302 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-29 05:48:21,303 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 05:48:21,303 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-29 05:48:21,304 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 05:48:21,304 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 05:48:21,305 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 05:48:21,321 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 05:48:21,321 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-29 05:48:21,322 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-29 05:48:21,322 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-29 05:48:21,322 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 05:48:21,323 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 05:48:21,323 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 05:48:21,324 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-29 05:48:21,324 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 05:48:21,324 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 05:48:21,325 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 05:48:21,325 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 05:48:21,325 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 05:48:21,326 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-29 05:48:21,326 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_fa5af06b-deb1-4406-9ec0-2a5b1fc9e83f/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa5af06b-deb1-4406-9ec0-2a5b1fc9e83f/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cbc46b286e5e11c96810d470756281447eef671d85940129caf0210db421d14f [2023-11-29 05:48:21,532 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 05:48:21,552 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 05:48:21,554 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 05:48:21,555 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 05:48:21,556 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 05:48:21,557 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa5af06b-deb1-4406-9ec0-2a5b1fc9e83f/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/product-lines/minepump_spec5_product26.cil.c [2023-11-29 05:48:24,298 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 05:48:24,506 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 05:48:24,506 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa5af06b-deb1-4406-9ec0-2a5b1fc9e83f/sv-benchmarks/c/product-lines/minepump_spec5_product26.cil.c [2023-11-29 05:48:24,518 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa5af06b-deb1-4406-9ec0-2a5b1fc9e83f/bin/uautomizer-verify-BQ2R08f2Ya/data/1acc0e9eb/b357af6d0c5245d8864473a3ba0153f2/FLAGb52b65b3b [2023-11-29 05:48:24,532 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa5af06b-deb1-4406-9ec0-2a5b1fc9e83f/bin/uautomizer-verify-BQ2R08f2Ya/data/1acc0e9eb/b357af6d0c5245d8864473a3ba0153f2 [2023-11-29 05:48:24,535 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 05:48:24,536 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 05:48:24,538 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 05:48:24,538 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 05:48:24,543 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 05:48:24,544 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:48:24" (1/1) ... [2023-11-29 05:48:24,544 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cc52b49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:48:24, skipping insertion in model container [2023-11-29 05:48:24,545 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:48:24" (1/1) ... [2023-11-29 05:48:24,591 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 05:48:24,834 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:48:24,847 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 05:48:24,858 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [49] [2023-11-29 05:48:24,859 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [145] [2023-11-29 05:48:24,859 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [511] [2023-11-29 05:48:24,860 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [520] [2023-11-29 05:48:24,860 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [709] [2023-11-29 05:48:24,860 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [777] [2023-11-29 05:48:24,860 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [815] [2023-11-29 05:48:24,860 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [913] [2023-11-29 05:48:24,912 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:48:24,929 INFO L206 MainTranslator]: Completed translation [2023-11-29 05:48:24,929 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:48:24 WrapperNode [2023-11-29 05:48:24,929 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 05:48:24,930 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 05:48:24,930 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 05:48:24,930 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 05:48:24,937 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:48:24" (1/1) ... [2023-11-29 05:48:24,952 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:48:24" (1/1) ... [2023-11-29 05:48:24,980 INFO L138 Inliner]: procedures = 56, calls = 100, calls flagged for inlining = 53, calls inlined = 58, statements flattened = 370 [2023-11-29 05:48:24,980 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 05:48:24,981 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 05:48:24,981 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 05:48:24,981 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 05:48:24,993 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:48:24" (1/1) ... [2023-11-29 05:48:24,993 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:48:24" (1/1) ... [2023-11-29 05:48:24,996 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:48:24" (1/1) ... [2023-11-29 05:48:25,011 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-29 05:48:25,012 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:48:24" (1/1) ... [2023-11-29 05:48:25,012 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:48:24" (1/1) ... [2023-11-29 05:48:25,019 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:48:24" (1/1) ... [2023-11-29 05:48:25,024 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:48:24" (1/1) ... [2023-11-29 05:48:25,026 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:48:24" (1/1) ... [2023-11-29 05:48:25,028 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:48:24" (1/1) ... [2023-11-29 05:48:25,031 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 05:48:25,032 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 05:48:25,032 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 05:48:25,032 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 05:48:25,033 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:48:24" (1/1) ... [2023-11-29 05:48:25,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:48:25,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa5af06b-deb1-4406-9ec0-2a5b1fc9e83f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:48:25,062 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa5af06b-deb1-4406-9ec0-2a5b1fc9e83f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:48:25,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa5af06b-deb1-4406-9ec0-2a5b1fc9e83f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-29 05:48:25,088 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 05:48:25,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 05:48:25,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 05:48:25,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 05:48:25,151 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 05:48:25,152 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 05:48:25,408 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 05:48:25,419 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 05:48:25,420 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-29 05:48:25,421 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:48:25 BoogieIcfgContainer [2023-11-29 05:48:25,421 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 05:48:25,422 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-29 05:48:25,422 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-29 05:48:25,425 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-29 05:48:25,426 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-29 05:48:25,426 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 05:48:24" (1/3) ... [2023-11-29 05:48:25,427 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@379c0942 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 05:48:25, skipping insertion in model container [2023-11-29 05:48:25,427 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-29 05:48:25,427 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:48:24" (2/3) ... [2023-11-29 05:48:25,427 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@379c0942 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 05:48:25, skipping insertion in model container [2023-11-29 05:48:25,428 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-29 05:48:25,428 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:48:25" (3/3) ... [2023-11-29 05:48:25,429 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product26.cil.c [2023-11-29 05:48:25,475 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-29 05:48:25,476 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-29 05:48:25,476 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-29 05:48:25,476 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-29 05:48:25,476 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-29 05:48:25,476 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-29 05:48:25,476 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-29 05:48:25,476 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-29 05:48:25,481 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 116 states, 115 states have (on average 1.3478260869565217) internal successors, (155), 115 states have internal predecessors, (155), 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) [2023-11-29 05:48:25,502 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2023-11-29 05:48:25,502 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 05:48:25,502 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 05:48:25,509 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:48:25,509 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] [2023-11-29 05:48:25,510 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-29 05:48:25,510 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 116 states, 115 states have (on average 1.3478260869565217) internal successors, (155), 115 states have internal predecessors, (155), 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) [2023-11-29 05:48:25,517 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2023-11-29 05:48:25,517 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 05:48:25,518 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 05:48:25,519 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:48:25,519 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] [2023-11-29 05:48:25,524 INFO L748 eck$LassoCheckResult]: Stem: 23#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0; 34#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret49#1, main_~retValue_acc~11#1, main_~tmp~7#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 21#select_helpers_returnLabel#1true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 98#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~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 82#valid_product_returnLabel#1true main_#t~ret49#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret49#1;havoc main_#t~ret49#1; 80#L900true assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 65#setup_returnLabel#1true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 106#__utac_acc__Specification5_spec__1_returnLabel#1true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet44#1, test_#t~nondet45#1, test_#t~nondet46#1, test_#t~nondet47#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 71#L721-2true [2023-11-29 05:48:25,525 INFO L750 eck$LassoCheckResult]: Loop: 71#L721-2true assume !false; 57#L722true assume test_~splverifierCounter~0#1 < 4; 117#L723true havoc test_#t~nondet44#1;test_~tmp~6#1 := test_#t~nondet44#1;havoc test_#t~nondet44#1; 89#L731true assume !(0 != test_~tmp~6#1); 4#L731-2true havoc test_#t~nondet45#1;test_~tmp___0~1#1 := test_#t~nondet45#1;havoc test_#t~nondet45#1; 111#L741true assume !(0 != test_~tmp___0~1#1); 72#L741-2true havoc test_#t~nondet46#1;test_~tmp___2~0#1 := test_#t~nondet46#1;havoc test_#t~nondet46#1; 20#L751true assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet47#1;test_~tmp___1~0#1 := test_#t~nondet47#1;havoc test_#t~nondet47#1; 26#L759true assume 0 != test_~tmp___1~0#1; 36#L759-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret50#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~7#1;havoc isPumpRunning_~retValue_acc~7#1;isPumpRunning_~retValue_acc~7#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~7#1; 103#isPumpRunning_returnLabel#1true __utac_acc__Specification5_spec__2_#t~ret50#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~7#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret50#1;havoc __utac_acc__Specification5_spec__2_#t~ret50#1; 76#__utac_acc__Specification5_spec__2_returnLabel#1true havoc __utac_acc__Specification5_spec__2_#t~ret50#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true; 44#L539true assume !(0 != ~pumpRunning~0); 104#L539-2true assume !(0 != ~systemActive~0); 74#L546-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_~tmp~8#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~8#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 58#getWaterLevel_returnLabel#1true __utac_acc__Specification5_spec__3_#t~ret51#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~8#1 := __utac_acc__Specification5_spec__3_#t~ret51#1;havoc __utac_acc__Specification5_spec__3_#t~ret51#1; 97#L941true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~8#1); 88#L941-1true havoc __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_~tmp~8#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true; 59#timeShift_returnLabel#1true assume { :end_inline_timeShift } true; 71#L721-2true [2023-11-29 05:48:25,531 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:48:25,531 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2023-11-29 05:48:25,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:48:25,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261201094] [2023-11-29 05:48:25,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:48:25,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:48:25,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:48:25,627 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 05:48:25,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:48:25,660 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 05:48:25,663 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:48:25,663 INFO L85 PathProgramCache]: Analyzing trace with hash -677047954, now seen corresponding path program 1 times [2023-11-29 05:48:25,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:48:25,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481512772] [2023-11-29 05:48:25,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:48:25,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:48:25,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:48:25,674 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 05:48:25,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:48:25,686 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 05:48:25,687 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:48:25,687 INFO L85 PathProgramCache]: Analyzing trace with hash 752700389, now seen corresponding path program 1 times [2023-11-29 05:48:25,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:48:25,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949619931] [2023-11-29 05:48:25,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:48:25,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:48:25,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:48:25,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:48:25,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:48:25,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949619931] [2023-11-29 05:48:25,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949619931] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:48:25,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:48:25,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 05:48:25,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829970146] [2023-11-29 05:48:25,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:48:26,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:48:26,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 05:48:26,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 05:48:26,102 INFO L87 Difference]: Start difference. First operand has 116 states, 115 states have (on average 1.3478260869565217) internal successors, (155), 115 states have internal predecessors, (155), 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 4.5) internal successors, (27), 5 states have internal predecessors, (27), 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) [2023-11-29 05:48:26,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:48:26,167 INFO L93 Difference]: Finished difference Result 110 states and 138 transitions. [2023-11-29 05:48:26,168 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 110 states and 138 transitions. [2023-11-29 05:48:26,172 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 67 [2023-11-29 05:48:26,177 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 110 states to 100 states and 128 transitions. [2023-11-29 05:48:26,178 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 100 [2023-11-29 05:48:26,179 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 100 [2023-11-29 05:48:26,179 INFO L73 IsDeterministic]: Start isDeterministic. Operand 100 states and 128 transitions. [2023-11-29 05:48:26,180 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 05:48:26,180 INFO L218 hiAutomatonCegarLoop]: Abstraction has 100 states and 128 transitions. [2023-11-29 05:48:26,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states and 128 transitions. [2023-11-29 05:48:26,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2023-11-29 05:48:26,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 100 states have (on average 1.28) internal successors, (128), 99 states have internal predecessors, (128), 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) [2023-11-29 05:48:26,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 128 transitions. [2023-11-29 05:48:26,208 INFO L240 hiAutomatonCegarLoop]: Abstraction has 100 states and 128 transitions. [2023-11-29 05:48:26,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 05:48:26,212 INFO L428 stractBuchiCegarLoop]: Abstraction has 100 states and 128 transitions. [2023-11-29 05:48:26,212 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-29 05:48:26,212 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 100 states and 128 transitions. [2023-11-29 05:48:26,214 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 67 [2023-11-29 05:48:26,214 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 05:48:26,215 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 05:48:26,215 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:48:26,216 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] [2023-11-29 05:48:26,216 INFO L748 eck$LassoCheckResult]: Stem: 277#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0; 278#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret49#1, main_~retValue_acc~11#1, main_~tmp~7#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 275#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 276#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~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 332#valid_product_returnLabel#1 main_#t~ret49#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret49#1;havoc main_#t~ret49#1; 330#L900 assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 319#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 320#__utac_acc__Specification5_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet44#1, test_#t~nondet45#1, test_#t~nondet46#1, test_#t~nondet47#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 314#L721-2 [2023-11-29 05:48:26,216 INFO L750 eck$LassoCheckResult]: Loop: 314#L721-2 assume !false; 309#L722 assume test_~splverifierCounter~0#1 < 4; 310#L723 havoc test_#t~nondet44#1;test_~tmp~6#1 := test_#t~nondet44#1;havoc test_#t~nondet44#1; 338#L731 assume !(0 != test_~tmp~6#1); 246#L731-2 havoc test_#t~nondet45#1;test_~tmp___0~1#1 := test_#t~nondet45#1;havoc test_#t~nondet45#1; 247#L741 assume !(0 != test_~tmp___0~1#1); 251#L741-2 havoc test_#t~nondet46#1;test_~tmp___2~0#1 := test_#t~nondet46#1;havoc test_#t~nondet46#1; 272#L751 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 273#startSystem_returnLabel#1 assume { :end_inline_startSystem } true; 279#L759-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret50#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~7#1;havoc isPumpRunning_~retValue_acc~7#1;isPumpRunning_~retValue_acc~7#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~7#1; 288#isPumpRunning_returnLabel#1 __utac_acc__Specification5_spec__2_#t~ret50#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~7#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret50#1;havoc __utac_acc__Specification5_spec__2_#t~ret50#1; 327#__utac_acc__Specification5_spec__2_returnLabel#1 havoc __utac_acc__Specification5_spec__2_#t~ret50#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true; 296#L539 assume !(0 != ~pumpRunning~0); 268#L539-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret32#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 343#L571 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 323#processEnvironment__wrappee__base_returnLabel#2 assume { :end_inline_processEnvironment__wrappee__base } true; 262#L571-1 havoc processEnvironment_#t~ret32#1, processEnvironment_~tmp~3#1;assume { :end_inline_processEnvironment } true; 305#L546-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_~tmp~8#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~8#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 311#getWaterLevel_returnLabel#1 __utac_acc__Specification5_spec__3_#t~ret51#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~8#1 := __utac_acc__Specification5_spec__3_#t~ret51#1;havoc __utac_acc__Specification5_spec__3_#t~ret51#1; 312#L941 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~8#1); 337#L941-1 havoc __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_~tmp~8#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true; 313#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 314#L721-2 [2023-11-29 05:48:26,217 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:48:26,217 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2023-11-29 05:48:26,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:48:26,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954725502] [2023-11-29 05:48:26,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:48:26,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:48:26,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:48:26,229 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 05:48:26,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:48:26,240 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 05:48:26,241 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:48:26,241 INFO L85 PathProgramCache]: Analyzing trace with hash 720865298, now seen corresponding path program 1 times [2023-11-29 05:48:26,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:48:26,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996859476] [2023-11-29 05:48:26,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:48:26,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:48:26,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:48:26,248 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 05:48:26,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:48:26,257 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 05:48:26,257 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:48:26,257 INFO L85 PathProgramCache]: Analyzing trace with hash 1163077179, now seen corresponding path program 1 times [2023-11-29 05:48:26,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:48:26,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275117618] [2023-11-29 05:48:26,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:48:26,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:48:26,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:48:26,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:48:26,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:48:26,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275117618] [2023-11-29 05:48:26,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275117618] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:48:26,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:48:26,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 05:48:26,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691090086] [2023-11-29 05:48:26,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:48:26,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:48:26,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:48:26,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:48:26,471 INFO L87 Difference]: Start difference. First operand 100 states and 128 transitions. cyclomatic complexity: 30 Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 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) [2023-11-29 05:48:26,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:48:26,639 INFO L93 Difference]: Finished difference Result 280 states and 360 transitions. [2023-11-29 05:48:26,639 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 280 states and 360 transitions. [2023-11-29 05:48:26,644 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 173 [2023-11-29 05:48:26,647 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 280 states to 280 states and 360 transitions. [2023-11-29 05:48:26,648 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 280 [2023-11-29 05:48:26,648 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 280 [2023-11-29 05:48:26,649 INFO L73 IsDeterministic]: Start isDeterministic. Operand 280 states and 360 transitions. [2023-11-29 05:48:26,651 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 05:48:26,651 INFO L218 hiAutomatonCegarLoop]: Abstraction has 280 states and 360 transitions. [2023-11-29 05:48:26,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states and 360 transitions. [2023-11-29 05:48:26,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 191. [2023-11-29 05:48:26,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 191 states have (on average 1.2722513089005236) internal successors, (243), 190 states have internal predecessors, (243), 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) [2023-11-29 05:48:26,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 243 transitions. [2023-11-29 05:48:26,667 INFO L240 hiAutomatonCegarLoop]: Abstraction has 191 states and 243 transitions. [2023-11-29 05:48:26,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 05:48:26,668 INFO L428 stractBuchiCegarLoop]: Abstraction has 191 states and 243 transitions. [2023-11-29 05:48:26,668 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-29 05:48:26,668 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 191 states and 243 transitions. [2023-11-29 05:48:26,670 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 133 [2023-11-29 05:48:26,670 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 05:48:26,671 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 05:48:26,671 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:48:26,672 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] [2023-11-29 05:48:26,672 INFO L748 eck$LassoCheckResult]: Stem: 674#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0; 675#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret49#1, main_~retValue_acc~11#1, main_~tmp~7#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 672#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 673#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~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 732#valid_product_returnLabel#1 main_#t~ret49#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret49#1;havoc main_#t~ret49#1; 730#L900 assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 719#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 720#__utac_acc__Specification5_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet44#1, test_#t~nondet45#1, test_#t~nondet46#1, test_#t~nondet47#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 712#L721-2 [2023-11-29 05:48:26,672 INFO L750 eck$LassoCheckResult]: Loop: 712#L721-2 assume !false; 707#L722 assume test_~splverifierCounter~0#1 < 4; 708#L723 havoc test_#t~nondet44#1;test_~tmp~6#1 := test_#t~nondet44#1;havoc test_#t~nondet44#1; 739#L731 assume !(0 != test_~tmp~6#1); 640#L731-2 havoc test_#t~nondet45#1;test_~tmp___0~1#1 := test_#t~nondet45#1;havoc test_#t~nondet45#1; 641#L741 assume !(0 != test_~tmp___0~1#1); 645#L741-2 havoc test_#t~nondet46#1;test_~tmp___2~0#1 := test_#t~nondet46#1;havoc test_#t~nondet46#1; 669#L751 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 670#startSystem_returnLabel#1 assume { :end_inline_startSystem } true; 676#L759-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret50#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~7#1;havoc isPumpRunning_~retValue_acc~7#1;isPumpRunning_~retValue_acc~7#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~7#1; 685#isPumpRunning_returnLabel#1 __utac_acc__Specification5_spec__2_#t~ret50#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~7#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret50#1;havoc __utac_acc__Specification5_spec__2_#t~ret50#1; 727#__utac_acc__Specification5_spec__2_returnLabel#1 havoc __utac_acc__Specification5_spec__2_#t~ret50#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true; 693#L539 assume !(0 != ~pumpRunning~0); 665#L539-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret32#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 751#L571 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 722#processEnvironment__wrappee__base_returnLabel#2 assume { :end_inline_processEnvironment__wrappee__base } true; 656#L571-1 havoc processEnvironment_#t~ret32#1, processEnvironment_~tmp~3#1;assume { :end_inline_processEnvironment } true; 703#L546-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_~tmp~8#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~8#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 709#getWaterLevel_returnLabel#1 __utac_acc__Specification5_spec__3_#t~ret51#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~8#1 := __utac_acc__Specification5_spec__3_#t~ret51#1;havoc __utac_acc__Specification5_spec__3_#t~ret51#1; 710#L941 assume 2 != __utac_acc__Specification5_spec__3_~tmp~8#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~7#1;havoc isPumpRunning_~retValue_acc~7#1;isPumpRunning_~retValue_acc~7#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~7#1; 746#isPumpRunning_returnLabel#2 __utac_acc__Specification5_spec__3_#t~ret52#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~7#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~2#1 := __utac_acc__Specification5_spec__3_#t~ret52#1;havoc __utac_acc__Specification5_spec__3_#t~ret52#1; 787#L945 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~2#1); 738#L941-1 havoc __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_~tmp~8#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true; 711#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 712#L721-2 [2023-11-29 05:48:26,673 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:48:26,673 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2023-11-29 05:48:26,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:48:26,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699553015] [2023-11-29 05:48:26,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:48:26,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:48:26,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:48:26,682 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 05:48:26,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:48:26,712 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 05:48:26,713 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:48:26,713 INFO L85 PathProgramCache]: Analyzing trace with hash 1240811565, now seen corresponding path program 1 times [2023-11-29 05:48:26,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:48:26,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618215768] [2023-11-29 05:48:26,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:48:26,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:48:26,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:48:26,720 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 05:48:26,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:48:26,727 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 05:48:26,727 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:48:26,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1004666902, now seen corresponding path program 1 times [2023-11-29 05:48:26,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:48:26,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326629721] [2023-11-29 05:48:26,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:48:26,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:48:26,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:48:26,765 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 05:48:26,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:48:26,783 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 05:48:27,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:48:27,760 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 05:48:27,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:48:27,812 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 05:48:27 BoogieIcfgContainer [2023-11-29 05:48:27,813 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-29 05:48:27,813 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 05:48:27,813 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 05:48:27,813 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 05:48:27,814 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:48:25" (3/4) ... [2023-11-29 05:48:27,815 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2023-11-29 05:48:27,869 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa5af06b-deb1-4406-9ec0-2a5b1fc9e83f/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 05:48:27,870 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 05:48:27,871 INFO L158 Benchmark]: Toolchain (without parser) took 3334.09ms. Allocated memory was 176.2MB in the beginning and 211.8MB in the end (delta: 35.7MB). Free memory was 115.7MB in the beginning and 117.5MB in the end (delta: -1.9MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2023-11-29 05:48:27,871 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 111.1MB. Free memory is still 81.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 05:48:27,871 INFO L158 Benchmark]: CACSL2BoogieTranslator took 391.26ms. Allocated memory is still 176.2MB. Free memory was 115.5MB in the beginning and 142.1MB in the end (delta: -26.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-29 05:48:27,872 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.66ms. Allocated memory is still 176.2MB. Free memory was 142.1MB in the beginning and 139.4MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 05:48:27,872 INFO L158 Benchmark]: Boogie Preprocessor took 49.81ms. Allocated memory is still 176.2MB. Free memory was 139.4MB in the beginning and 136.8MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 05:48:27,873 INFO L158 Benchmark]: RCFGBuilder took 389.32ms. Allocated memory is still 176.2MB. Free memory was 136.8MB in the beginning and 118.5MB in the end (delta: 18.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-29 05:48:27,873 INFO L158 Benchmark]: BuchiAutomizer took 2390.85ms. Allocated memory was 176.2MB in the beginning and 211.8MB in the end (delta: 35.7MB). Free memory was 117.9MB in the beginning and 120.6MB in the end (delta: -2.7MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2023-11-29 05:48:27,873 INFO L158 Benchmark]: Witness Printer took 56.77ms. Allocated memory is still 211.8MB. Free memory was 119.6MB in the beginning and 117.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 05:48:27,875 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 111.1MB. Free memory is still 81.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 391.26ms. Allocated memory is still 176.2MB. Free memory was 115.5MB in the beginning and 142.1MB in the end (delta: -26.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.66ms. Allocated memory is still 176.2MB. Free memory was 142.1MB in the beginning and 139.4MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.81ms. Allocated memory is still 176.2MB. Free memory was 139.4MB in the beginning and 136.8MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 389.32ms. Allocated memory is still 176.2MB. Free memory was 136.8MB in the beginning and 118.5MB in the end (delta: 18.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * BuchiAutomizer took 2390.85ms. Allocated memory was 176.2MB in the beginning and 211.8MB in the end (delta: 35.7MB). Free memory was 117.9MB in the beginning and 120.6MB in the end (delta: -2.7MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Witness Printer took 56.77ms. Allocated memory is still 211.8MB. Free memory was 119.6MB in the beginning and 117.5MB 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: 145]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [145] - GenericResultAtLocation [Line: 511]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [511] - GenericResultAtLocation [Line: 520]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [520] - GenericResultAtLocation [Line: 709]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [709] - GenericResultAtLocation [Line: 777]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [777] - GenericResultAtLocation [Line: 815]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [815] - GenericResultAtLocation [Line: 913]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [913] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 191 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.3s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.9s. Construction of modules took 0.1s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 89 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 789 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 789 mSDsluCounter, 734 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 433 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 102 IncrementalHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 301 mSDtfsCounter, 102 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 721]: 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; [L315] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L527] int pumpRunning = 0; [L528] int systemActive = 1; [L816] int cleanupTimeShifts = 4; [L914] int switchedOnBeforeTS ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L891] int retValue_acc ; [L892] int tmp ; [L896] FCALL select_helpers() [L897] FCALL select_features() [L898] CALL, EXPR valid_product() [L807] int retValue_acc ; [L810] retValue_acc = 1 [L811] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L898] RET, EXPR valid_product() [L898] tmp = valid_product() [L900] COND TRUE \read(tmp) [L902] FCALL setup() [L903] CALL runTest() [L884] CALL __utac_acc__Specification5_spec__1() [L919] switchedOnBeforeTS = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L884] RET __utac_acc__Specification5_spec__1() [L885] CALL test() [L712] int splverifierCounter ; [L713] int tmp ; [L714] int tmp___0 ; [L715] int tmp___1 ; [L716] int tmp___2 ; [L719] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] Loop: [L721] COND TRUE 1 [L723] COND TRUE splverifierCounter < 4 [L729] tmp = __VERIFIER_nondet_int() [L731] COND FALSE !(\read(tmp)) [L739] tmp___0 = __VERIFIER_nondet_int() [L741] COND FALSE !(\read(tmp___0)) [L749] tmp___2 = __VERIFIER_nondet_int() [L751] COND TRUE \read(tmp___2) [L753] CALL startSystem() [L705] systemActive = 1 [L753] RET startSystem() [L766] CALL timeShift() [L537] CALL __utac_acc__Specification5_spec__2() [L928] CALL, EXPR isPumpRunning() [L638] int retValue_acc ; [L641] retValue_acc = pumpRunning [L642] return (retValue_acc); [L928] RET, EXPR isPumpRunning() [L928] switchedOnBeforeTS = isPumpRunning() [L537] RET __utac_acc__Specification5_spec__2() [L539] COND FALSE !(\read(pumpRunning)) [L546] COND TRUE \read(systemActive) [L548] CALL processEnvironment() [L568] int tmp ; [L571] COND FALSE !(\read(pumpRunning)) [L586] FCALL processEnvironment__wrappee__base() [L548] RET processEnvironment() [L554] CALL __utac_acc__Specification5_spec__3() [L934] int tmp ; [L935] int tmp___0 ; [L939] CALL, EXPR getWaterLevel() [L128] int retValue_acc ; [L131] retValue_acc = waterLevel [L132] return (retValue_acc); [L939] RET, EXPR getWaterLevel() [L939] tmp = getWaterLevel() [L941] COND TRUE tmp != 2 [L943] CALL, EXPR isPumpRunning() [L638] int retValue_acc ; [L641] retValue_acc = pumpRunning [L642] return (retValue_acc); [L943] RET, EXPR isPumpRunning() [L943] tmp___0 = isPumpRunning() [L945] COND FALSE !(\read(tmp___0)) [L554] RET __utac_acc__Specification5_spec__3() [L766] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 721]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L57] int waterLevel = 1; [L58] int methaneLevelCritical = 0; [L315] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L527] int pumpRunning = 0; [L528] int systemActive = 1; [L816] int cleanupTimeShifts = 4; [L914] int switchedOnBeforeTS ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L891] int retValue_acc ; [L892] int tmp ; [L896] FCALL select_helpers() [L897] FCALL select_features() [L898] CALL, EXPR valid_product() [L807] int retValue_acc ; [L810] retValue_acc = 1 [L811] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L898] RET, EXPR valid_product() [L898] tmp = valid_product() [L900] COND TRUE \read(tmp) [L902] FCALL setup() [L903] CALL runTest() [L884] CALL __utac_acc__Specification5_spec__1() [L919] switchedOnBeforeTS = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L884] RET __utac_acc__Specification5_spec__1() [L885] CALL test() [L712] int splverifierCounter ; [L713] int tmp ; [L714] int tmp___0 ; [L715] int tmp___1 ; [L716] int tmp___2 ; [L719] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] Loop: [L721] COND TRUE 1 [L723] COND TRUE splverifierCounter < 4 [L729] tmp = __VERIFIER_nondet_int() [L731] COND FALSE !(\read(tmp)) [L739] tmp___0 = __VERIFIER_nondet_int() [L741] COND FALSE !(\read(tmp___0)) [L749] tmp___2 = __VERIFIER_nondet_int() [L751] COND TRUE \read(tmp___2) [L753] CALL startSystem() [L705] systemActive = 1 [L753] RET startSystem() [L766] CALL timeShift() [L537] CALL __utac_acc__Specification5_spec__2() [L928] CALL, EXPR isPumpRunning() [L638] int retValue_acc ; [L641] retValue_acc = pumpRunning [L642] return (retValue_acc); [L928] RET, EXPR isPumpRunning() [L928] switchedOnBeforeTS = isPumpRunning() [L537] RET __utac_acc__Specification5_spec__2() [L539] COND FALSE !(\read(pumpRunning)) [L546] COND TRUE \read(systemActive) [L548] CALL processEnvironment() [L568] int tmp ; [L571] COND FALSE !(\read(pumpRunning)) [L586] FCALL processEnvironment__wrappee__base() [L548] RET processEnvironment() [L554] CALL __utac_acc__Specification5_spec__3() [L934] int tmp ; [L935] int tmp___0 ; [L939] CALL, EXPR getWaterLevel() [L128] int retValue_acc ; [L131] retValue_acc = waterLevel [L132] return (retValue_acc); [L939] RET, EXPR getWaterLevel() [L939] tmp = getWaterLevel() [L941] COND TRUE tmp != 2 [L943] CALL, EXPR isPumpRunning() [L638] int retValue_acc ; [L641] retValue_acc = pumpRunning [L642] return (retValue_acc); [L943] RET, EXPR isPumpRunning() [L943] tmp___0 = isPumpRunning() [L945] COND FALSE !(\read(tmp___0)) [L554] RET __utac_acc__Specification5_spec__3() [L766] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2023-11-29 05:48:27,912 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa5af06b-deb1-4406-9ec0-2a5b1fc9e83f/bin/uautomizer-verify-BQ2R08f2Ya/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)