./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product36.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_dbc4ef70-6ce4-4aa1-882c-32d8fbd17672/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc4ef70-6ce4-4aa1-882c-32d8fbd17672/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc4ef70-6ce4-4aa1-882c-32d8fbd17672/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc4ef70-6ce4-4aa1-882c-32d8fbd17672/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product36.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc4ef70-6ce4-4aa1-882c-32d8fbd17672/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc4ef70-6ce4-4aa1-882c-32d8fbd17672/bin/uautomizer-verify-VRDe98Ueme --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 a02c09de3ac56c41127e71d631df699be80ebdf5846a7586536864de14f59a0e --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 10:45:35,632 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 10:45:35,713 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc4ef70-6ce4-4aa1-882c-32d8fbd17672/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-26 10:45:35,720 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 10:45:35,721 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 10:45:35,750 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 10:45:35,751 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 10:45:35,751 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 10:45:35,752 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 10:45:35,753 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 10:45:35,754 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 10:45:35,754 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 10:45:35,755 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 10:45:35,756 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-26 10:45:35,756 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-26 10:45:35,757 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-26 10:45:35,757 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-26 10:45:35,758 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-26 10:45:35,759 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-26 10:45:35,759 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 10:45:35,760 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-26 10:45:35,761 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 10:45:35,762 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 10:45:35,762 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 10:45:35,763 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 10:45:35,764 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-26 10:45:35,764 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-26 10:45:35,765 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-26 10:45:35,765 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 10:45:35,766 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 10:45:35,766 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 10:45:35,767 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-26 10:45:35,768 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 10:45:35,768 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 10:45:35,769 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 10:45:35,769 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 10:45:35,770 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 10:45:35,771 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-26 10:45:35,771 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_dbc4ef70-6ce4-4aa1-882c-32d8fbd17672/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc4ef70-6ce4-4aa1-882c-32d8fbd17672/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a02c09de3ac56c41127e71d631df699be80ebdf5846a7586536864de14f59a0e [2023-11-26 10:45:36,091 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 10:45:36,129 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 10:45:36,133 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 10:45:36,134 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 10:45:36,137 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 10:45:36,138 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc4ef70-6ce4-4aa1-882c-32d8fbd17672/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/product-lines/minepump_spec3_product36.cil.c [2023-11-26 10:45:39,686 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 10:45:39,995 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 10:45:39,996 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc4ef70-6ce4-4aa1-882c-32d8fbd17672/sv-benchmarks/c/product-lines/minepump_spec3_product36.cil.c [2023-11-26 10:45:40,015 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc4ef70-6ce4-4aa1-882c-32d8fbd17672/bin/uautomizer-verify-VRDe98Ueme/data/da12f8d55/c6b584fc2e1948409d4f5179beb17cfa/FLAG56ea87488 [2023-11-26 10:45:40,033 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc4ef70-6ce4-4aa1-882c-32d8fbd17672/bin/uautomizer-verify-VRDe98Ueme/data/da12f8d55/c6b584fc2e1948409d4f5179beb17cfa [2023-11-26 10:45:40,037 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 10:45:40,039 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 10:45:40,041 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 10:45:40,041 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 10:45:40,048 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 10:45:40,049 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:45:40" (1/1) ... [2023-11-26 10:45:40,051 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f08a443 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:40, skipping insertion in model container [2023-11-26 10:45:40,051 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:45:40" (1/1) ... [2023-11-26 10:45:40,106 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 10:45:40,472 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:45:40,489 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 10:45:40,503 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] [2023-11-26 10:45:40,505 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [58] [2023-11-26 10:45:40,505 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [424] [2023-11-26 10:45:40,506 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [611] [2023-11-26 10:45:40,506 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [683] [2023-11-26 10:45:40,506 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [778] [2023-11-26 10:45:40,507 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [877] [2023-11-26 10:45:40,507 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [912] [2023-11-26 10:45:40,586 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:45:40,611 INFO L206 MainTranslator]: Completed translation [2023-11-26 10:45:40,612 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:40 WrapperNode [2023-11-26 10:45:40,612 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 10:45:40,614 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 10:45:40,614 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 10:45:40,615 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 10:45:40,624 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:40" (1/1) ... [2023-11-26 10:45:40,642 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:40" (1/1) ... [2023-11-26 10:45:40,691 INFO L138 Inliner]: procedures = 54, calls = 98, calls flagged for inlining = 51, calls inlined = 56, statements flattened = 382 [2023-11-26 10:45:40,691 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 10:45:40,692 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 10:45:40,692 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 10:45:40,693 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 10:45:40,706 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:40" (1/1) ... [2023-11-26 10:45:40,706 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:40" (1/1) ... [2023-11-26 10:45:40,710 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:40" (1/1) ... [2023-11-26 10:45:40,727 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]. [2023-11-26 10:45:40,728 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:40" (1/1) ... [2023-11-26 10:45:40,728 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:40" (1/1) ... [2023-11-26 10:45:40,737 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:40" (1/1) ... [2023-11-26 10:45:40,743 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:40" (1/1) ... [2023-11-26 10:45:40,746 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:40" (1/1) ... [2023-11-26 10:45:40,749 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:40" (1/1) ... [2023-11-26 10:45:40,754 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 10:45:40,755 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 10:45:40,756 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 10:45:40,756 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 10:45:40,757 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:40" (1/1) ... [2023-11-26 10:45:40,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:45:40,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc4ef70-6ce4-4aa1-882c-32d8fbd17672/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:45:40,799 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc4ef70-6ce4-4aa1-882c-32d8fbd17672/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:45:40,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc4ef70-6ce4-4aa1-882c-32d8fbd17672/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-26 10:45:40,860 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 10:45:40,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 10:45:40,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 10:45:40,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 10:45:40,942 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 10:45:40,945 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 10:45:41,313 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 10:45:41,327 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 10:45:41,327 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-26 10:45:41,329 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:45:41 BoogieIcfgContainer [2023-11-26 10:45:41,330 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 10:45:41,331 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-26 10:45:41,331 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-26 10:45:41,335 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-26 10:45:41,336 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-26 10:45:41,337 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 26.11 10:45:40" (1/3) ... [2023-11-26 10:45:41,338 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3c9cdb66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.11 10:45:41, skipping insertion in model container [2023-11-26 10:45:41,338 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-26 10:45:41,338 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:40" (2/3) ... [2023-11-26 10:45:41,339 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3c9cdb66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.11 10:45:41, skipping insertion in model container [2023-11-26 10:45:41,339 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-26 10:45:41,339 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:45:41" (3/3) ... [2023-11-26 10:45:41,340 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product36.cil.c [2023-11-26 10:45:41,402 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-26 10:45:41,402 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-26 10:45:41,403 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-26 10:45:41,403 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-26 10:45:41,403 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-26 10:45:41,403 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-26 10:45:41,403 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-26 10:45:41,404 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-26 10:45:41,409 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 119 states, 118 states have (on average 1.3728813559322033) internal successors, (162), 118 states have internal predecessors, (162), 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) [2023-11-26 10:45:41,434 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 77 [2023-11-26 10:45:41,435 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 10:45:41,435 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 10:45:41,441 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:45:41,441 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:45:41,442 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-26 10:45:41,443 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 119 states, 118 states have (on average 1.3728813559322033) internal successors, (162), 118 states have internal predecessors, (162), 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) [2023-11-26 10:45:41,454 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 77 [2023-11-26 10:45:41,454 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 10:45:41,454 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 10:45:41,455 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:45:41,455 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:45:41,461 INFO L748 eck$LassoCheckResult]: Stem: 30#$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);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 38#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret47#1, main_~retValue_acc~9#1, main_~tmp~6#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 27#select_helpers_returnLabel#1true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 99#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~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 88#valid_product_returnLabel#1true main_#t~ret47#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret47#1;havoc main_#t~ret47#1; 104#L864true assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 74#setup_returnLabel#1true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_#t~nondet41#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 119#L625-2true [2023-11-26 10:45:41,466 INFO L750 eck$LassoCheckResult]: Loop: 119#L625-2true assume !false; 75#L626true assume test_~splverifierCounter~0#1 < 4; 52#L627true havoc test_#t~nondet38#1;test_~tmp~5#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 26#L635true assume !(0 != test_~tmp~5#1); 51#L635-2true havoc test_#t~nondet39#1;test_~tmp___0~1#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 120#L645true assume !(0 != test_~tmp___0~1#1); 56#L645-2true havoc test_#t~nondet40#1;test_~tmp___2~0#1 := test_#t~nondet40#1;havoc test_#t~nondet40#1; 32#L655true assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet41#1;test_~tmp___1~0#1 := test_#t~nondet41#1;havoc test_#t~nondet41#1; 19#L663true assume !(0 != test_~tmp___1~0#1); 29#L663-2true assume { :begin_inline_timeShift } true; 92#L444true assume !(0 != ~pumpRunning~0); 23#L444-2true assume !(0 != ~systemActive~0); 76#L451-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_~tmp~7#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~7#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 113#isMethaneLevelCritical_returnLabel#1true __utac_acc__Specification3_spec__1_#t~ret49#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~7#1 := __utac_acc__Specification3_spec__1_#t~ret49#1;havoc __utac_acc__Specification3_spec__1_#t~ret49#1; 112#L922true assume 0 != __utac_acc__Specification3_spec__1_~tmp~7#1; 98#L928-1true havoc __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_~tmp~7#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 63#timeShift_returnLabel#1true assume { :end_inline_timeShift } true; 119#L625-2true [2023-11-26 10:45:41,472 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:41,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2023-11-26 10:45:41,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:41,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467879016] [2023-11-26 10:45:41,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:41,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:41,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:45:41,613 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:45:41,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:45:41,653 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:45:41,656 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:41,656 INFO L85 PathProgramCache]: Analyzing trace with hash 1528738401, now seen corresponding path program 1 times [2023-11-26 10:45:41,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:41,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008178527] [2023-11-26 10:45:41,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:41,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:41,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:45:41,669 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:45:41,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:45:41,681 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:45:41,689 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:41,690 INFO L85 PathProgramCache]: Analyzing trace with hash 597056797, now seen corresponding path program 1 times [2023-11-26 10:45:41,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:41,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983975679] [2023-11-26 10:45:41,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:41,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:41,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:41,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:45:41,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:45:41,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983975679] [2023-11-26 10:45:41,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983975679] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:45:41,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:45:41,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 10:45:41,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53724263] [2023-11-26 10:45:41,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:45:42,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:45:42,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 10:45:42,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-26 10:45:42,237 INFO L87 Difference]: Start difference. First operand has 119 states, 118 states have (on average 1.3728813559322033) internal successors, (162), 118 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:42,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:45:42,523 INFO L93 Difference]: Finished difference Result 393 states and 512 transitions. [2023-11-26 10:45:42,524 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 393 states and 512 transitions. [2023-11-26 10:45:42,537 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 254 [2023-11-26 10:45:42,548 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 393 states to 353 states and 472 transitions. [2023-11-26 10:45:42,549 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 353 [2023-11-26 10:45:42,552 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 353 [2023-11-26 10:45:42,553 INFO L73 IsDeterministic]: Start isDeterministic. Operand 353 states and 472 transitions. [2023-11-26 10:45:42,556 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:45:42,557 INFO L218 hiAutomatonCegarLoop]: Abstraction has 353 states and 472 transitions. [2023-11-26 10:45:42,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states and 472 transitions. [2023-11-26 10:45:42,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 161. [2023-11-26 10:45:42,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 161 states have (on average 1.3354037267080745) internal successors, (215), 160 states have internal predecessors, (215), 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) [2023-11-26 10:45:42,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 215 transitions. [2023-11-26 10:45:42,607 INFO L240 hiAutomatonCegarLoop]: Abstraction has 161 states and 215 transitions. [2023-11-26 10:45:42,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 10:45:42,613 INFO L428 stractBuchiCegarLoop]: Abstraction has 161 states and 215 transitions. [2023-11-26 10:45:42,613 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-26 10:45:42,614 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 161 states and 215 transitions. [2023-11-26 10:45:42,616 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 115 [2023-11-26 10:45:42,616 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 10:45:42,616 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 10:45:42,617 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:45:42,618 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] [2023-11-26 10:45:42,618 INFO L748 eck$LassoCheckResult]: Stem: 575#$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);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 576#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret47#1, main_~retValue_acc~9#1, main_~tmp~6#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 572#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 573#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~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 624#valid_product_returnLabel#1 main_#t~ret47#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret47#1;havoc main_#t~ret47#1; 625#L864 assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 616#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_#t~nondet41#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 609#L625-2 [2023-11-26 10:45:42,618 INFO L750 eck$LassoCheckResult]: Loop: 609#L625-2 assume !false; 617#L626 assume test_~splverifierCounter~0#1 < 4; 596#L627 havoc test_#t~nondet38#1;test_~tmp~5#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 570#L635 assume !(0 != test_~tmp~5#1); 571#L635-2 havoc test_#t~nondet39#1;test_~tmp___0~1#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 595#L645 assume !(0 != test_~tmp___0~1#1); 535#L645-2 havoc test_#t~nondet40#1;test_~tmp___2~0#1 := test_#t~nondet40#1;havoc test_#t~nondet40#1; 579#L655 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 580#startSystem_returnLabel#1 assume { :end_inline_startSystem } true; 556#L663-2 assume { :begin_inline_timeShift } true; 574#L444 assume !(0 != ~pumpRunning~0); 562#L444-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret27#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 563#L476 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 588#processEnvironment__wrappee__base_returnLabel#2 assume { :end_inline_processEnvironment__wrappee__base } true; 537#L476-1 havoc processEnvironment_#t~ret27#1, processEnvironment_~tmp~3#1;assume { :end_inline_processEnvironment } true; 582#L451-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_~tmp~7#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~7#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 618#isMethaneLevelCritical_returnLabel#1 __utac_acc__Specification3_spec__1_#t~ret49#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~7#1 := __utac_acc__Specification3_spec__1_#t~ret49#1;havoc __utac_acc__Specification3_spec__1_#t~ret49#1; 632#L922 assume 0 != __utac_acc__Specification3_spec__1_~tmp~7#1; 612#L928-1 havoc __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_~tmp~7#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 608#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 609#L625-2 [2023-11-26 10:45:42,619 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:42,619 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2023-11-26 10:45:42,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:42,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339020767] [2023-11-26 10:45:42,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:42,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:42,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:45:42,636 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:45:42,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:45:42,653 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:45:42,654 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:42,654 INFO L85 PathProgramCache]: Analyzing trace with hash -563677243, now seen corresponding path program 1 times [2023-11-26 10:45:42,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:42,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613154170] [2023-11-26 10:45:42,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:42,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:42,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:42,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:45:42,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:45:42,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613154170] [2023-11-26 10:45:42,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613154170] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:45:42,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:45:42,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 10:45:42,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302014398] [2023-11-26 10:45:42,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:45:42,688 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-26 10:45:42,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:45:42,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:45:42,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:45:42,689 INFO L87 Difference]: Start difference. First operand 161 states and 215 transitions. cyclomatic complexity: 57 Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:42,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:45:42,768 INFO L93 Difference]: Finished difference Result 215 states and 276 transitions. [2023-11-26 10:45:42,769 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 215 states and 276 transitions. [2023-11-26 10:45:42,774 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 157 [2023-11-26 10:45:42,781 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 215 states to 215 states and 276 transitions. [2023-11-26 10:45:42,786 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 215 [2023-11-26 10:45:42,788 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 215 [2023-11-26 10:45:42,789 INFO L73 IsDeterministic]: Start isDeterministic. Operand 215 states and 276 transitions. [2023-11-26 10:45:42,793 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:45:42,793 INFO L218 hiAutomatonCegarLoop]: Abstraction has 215 states and 276 transitions. [2023-11-26 10:45:42,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states and 276 transitions. [2023-11-26 10:45:42,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 215. [2023-11-26 10:45:42,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 215 states have (on average 1.283720930232558) internal successors, (276), 214 states have internal predecessors, (276), 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) [2023-11-26 10:45:42,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 276 transitions. [2023-11-26 10:45:42,822 INFO L240 hiAutomatonCegarLoop]: Abstraction has 215 states and 276 transitions. [2023-11-26 10:45:42,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:45:42,829 INFO L428 stractBuchiCegarLoop]: Abstraction has 215 states and 276 transitions. [2023-11-26 10:45:42,830 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-26 10:45:42,830 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 215 states and 276 transitions. [2023-11-26 10:45:42,834 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 157 [2023-11-26 10:45:42,834 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 10:45:42,835 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 10:45:42,839 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:45:42,839 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] [2023-11-26 10:45:42,839 INFO L748 eck$LassoCheckResult]: Stem: 957#$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);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 958#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret47#1, main_~retValue_acc~9#1, main_~tmp~6#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 953#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 954#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~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 1018#valid_product_returnLabel#1 main_#t~ret47#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret47#1;havoc main_#t~ret47#1; 1019#L864 assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 1008#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_#t~nondet41#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 999#L625-2 [2023-11-26 10:45:42,840 INFO L750 eck$LassoCheckResult]: Loop: 999#L625-2 assume !false; 1037#L626 assume test_~splverifierCounter~0#1 < 4; 1099#L627 havoc test_#t~nondet38#1;test_~tmp~5#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 951#L635 assume !(0 != test_~tmp~5#1); 952#L635-2 havoc test_#t~nondet39#1;test_~tmp___0~1#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 1038#L645 assume !(0 != test_~tmp___0~1#1); 917#L645-2 havoc test_#t~nondet40#1;test_~tmp___2~0#1 := test_#t~nondet40#1;havoc test_#t~nondet40#1; 961#L655 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 962#startSystem_returnLabel#1 assume { :end_inline_startSystem } true; 938#L663-2 assume { :begin_inline_timeShift } true; 1095#L444 assume !(0 != ~pumpRunning~0); 1073#L444-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret27#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 969#L476 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret37#1, isHighWaterLevel_~retValue_acc~5#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~5#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 926#L768 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 927#isHighWaterSensorDry_returnLabel#1 isHighWaterLevel_#t~ret37#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret37#1;havoc isHighWaterLevel_#t~ret37#1; 940#L578 assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~0#1 := 0; 976#L578-2 isHighWaterLevel_~retValue_acc~5#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~5#1; 1025#isHighWaterLevel_returnLabel#1 processEnvironment_#t~ret27#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret37#1, isHighWaterLevel_~retValue_acc~5#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~0#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~3#1 := processEnvironment_#t~ret27#1;havoc processEnvironment_#t~ret27#1; 978#L480 assume !(0 != processEnvironment_~tmp~3#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 929#processEnvironment__wrappee__base_returnLabel#1 assume { :end_inline_processEnvironment__wrappee__base } true; 930#L476-1 havoc processEnvironment_#t~ret27#1, processEnvironment_~tmp~3#1;assume { :end_inline_processEnvironment } true; 964#L451-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_~tmp~7#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~7#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 1010#isMethaneLevelCritical_returnLabel#1 __utac_acc__Specification3_spec__1_#t~ret49#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~7#1 := __utac_acc__Specification3_spec__1_#t~ret49#1;havoc __utac_acc__Specification3_spec__1_#t~ret49#1; 1034#L922 assume 0 != __utac_acc__Specification3_spec__1_~tmp~7#1; 1003#L928-1 havoc __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_~tmp~7#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 998#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 999#L625-2 [2023-11-26 10:45:42,841 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:42,841 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2023-11-26 10:45:42,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:42,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612177071] [2023-11-26 10:45:42,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:42,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:42,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:45:42,874 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:45:42,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:45:42,904 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:45:42,905 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:42,914 INFO L85 PathProgramCache]: Analyzing trace with hash -194719891, now seen corresponding path program 1 times [2023-11-26 10:45:42,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:42,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019607454] [2023-11-26 10:45:42,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:42,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:42,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:45:42,925 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:45:42,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:45:42,951 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:45:42,952 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:42,952 INFO L85 PathProgramCache]: Analyzing trace with hash -321161167, now seen corresponding path program 1 times [2023-11-26 10:45:42,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:42,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377040938] [2023-11-26 10:45:42,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:42,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:42,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:43,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:45:43,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:45:43,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377040938] [2023-11-26 10:45:43,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377040938] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:45:43,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:45:43,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 10:45:43,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509650046] [2023-11-26 10:45:43,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:45:43,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:45:43,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 10:45:43,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:45:43,458 INFO L87 Difference]: Start difference. First operand 215 states and 276 transitions. cyclomatic complexity: 64 Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:43,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:45:43,575 INFO L93 Difference]: Finished difference Result 546 states and 691 transitions. [2023-11-26 10:45:43,576 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 546 states and 691 transitions. [2023-11-26 10:45:43,582 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 409 [2023-11-26 10:45:43,589 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 546 states to 546 states and 691 transitions. [2023-11-26 10:45:43,589 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 546 [2023-11-26 10:45:43,590 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 546 [2023-11-26 10:45:43,590 INFO L73 IsDeterministic]: Start isDeterministic. Operand 546 states and 691 transitions. [2023-11-26 10:45:43,592 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:45:43,592 INFO L218 hiAutomatonCegarLoop]: Abstraction has 546 states and 691 transitions. [2023-11-26 10:45:43,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 546 states and 691 transitions. [2023-11-26 10:45:43,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 546 to 423. [2023-11-26 10:45:43,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 423 states have (on average 1.260047281323877) internal successors, (533), 422 states have internal predecessors, (533), 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) [2023-11-26 10:45:43,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 533 transitions. [2023-11-26 10:45:43,618 INFO L240 hiAutomatonCegarLoop]: Abstraction has 423 states and 533 transitions. [2023-11-26 10:45:43,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-26 10:45:43,620 INFO L428 stractBuchiCegarLoop]: Abstraction has 423 states and 533 transitions. [2023-11-26 10:45:43,620 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-26 10:45:43,620 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 423 states and 533 transitions. [2023-11-26 10:45:43,624 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 314 [2023-11-26 10:45:43,624 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 10:45:43,625 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 10:45:43,626 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:45:43,626 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] [2023-11-26 10:45:43,626 INFO L748 eck$LassoCheckResult]: Stem: 1732#$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);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 1733#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret47#1, main_~retValue_acc~9#1, main_~tmp~6#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 1729#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1730#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~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 1802#valid_product_returnLabel#1 main_#t~ret47#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret47#1;havoc main_#t~ret47#1; 1803#L864 assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 1784#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_#t~nondet41#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1773#L625-2 [2023-11-26 10:45:43,626 INFO L750 eck$LassoCheckResult]: Loop: 1773#L625-2 assume !false; 1785#L626 assume test_~splverifierCounter~0#1 < 4; 1758#L627 havoc test_#t~nondet38#1;test_~tmp~5#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 1727#L635 assume !(0 != test_~tmp~5#1); 1728#L635-2 havoc test_#t~nondet39#1;test_~tmp___0~1#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 1757#L645 assume !(0 != test_~tmp___0~1#1); 1692#L645-2 havoc test_#t~nondet40#1;test_~tmp___2~0#1 := test_#t~nondet40#1;havoc test_#t~nondet40#1; 2067#L655 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 2059#startSystem_returnLabel#1 assume { :end_inline_startSystem } true; 2053#L663-2 assume { :begin_inline_timeShift } true; 2052#L444 assume !(0 != ~pumpRunning~0); 1719#L444-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret27#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 1720#L476 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret37#1, isHighWaterLevel_~retValue_acc~5#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~5#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 1701#L768 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 1702#isHighWaterSensorDry_returnLabel#1 isHighWaterLevel_#t~ret37#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret37#1;havoc isHighWaterLevel_#t~ret37#1; 1716#L578 assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~0#1 := 0; 1751#L578-2 isHighWaterLevel_~retValue_acc~5#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~5#1; 1811#isHighWaterLevel_returnLabel#1 processEnvironment_#t~ret27#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret37#1, isHighWaterLevel_~retValue_acc~5#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~0#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~3#1 := processEnvironment_#t~ret27#1;havoc processEnvironment_#t~ret27#1; 1812#L480 assume !(0 != processEnvironment_~tmp~3#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1946#processEnvironment__wrappee__base_returnLabel#1 assume { :end_inline_processEnvironment__wrappee__base } true; 2062#L476-1 havoc processEnvironment_#t~ret27#1, processEnvironment_~tmp~3#1;assume { :end_inline_processEnvironment } true; 2057#L451-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_~tmp~7#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~7#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 2056#isMethaneLevelCritical_returnLabel#1 __utac_acc__Specification3_spec__1_#t~ret49#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~7#1 := __utac_acc__Specification3_spec__1_#t~ret49#1;havoc __utac_acc__Specification3_spec__1_#t~ret49#1; 2055#L922 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~7#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; 2054#getWaterLevel_returnLabel#1 __utac_acc__Specification3_spec__1_#t~ret50#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~2#1 := __utac_acc__Specification3_spec__1_#t~ret50#1;havoc __utac_acc__Specification3_spec__1_#t~ret50#1; 2027#L928 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~2#1); 2029#L928-1 havoc __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_~tmp~7#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1772#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1773#L625-2 [2023-11-26 10:45:43,627 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:43,627 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2023-11-26 10:45:43,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:43,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330753837] [2023-11-26 10:45:43,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:43,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:43,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:45:43,637 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:45:43,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:45:43,651 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:45:43,652 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:43,652 INFO L85 PathProgramCache]: Analyzing trace with hash 1853938146, now seen corresponding path program 1 times [2023-11-26 10:45:43,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:43,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444065517] [2023-11-26 10:45:43,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:43,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:43,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:45:43,674 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:45:43,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:45:43,701 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:45:43,702 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:43,702 INFO L85 PathProgramCache]: Analyzing trace with hash 602956198, now seen corresponding path program 1 times [2023-11-26 10:45:43,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:43,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363704383] [2023-11-26 10:45:43,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:43,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:43,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:45:43,728 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:45:43,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:45:43,759 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:45:45,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:45:45,140 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:45:45,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:45:45,199 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.11 10:45:45 BoogieIcfgContainer [2023-11-26 10:45:45,199 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-26 10:45:45,200 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 10:45:45,200 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 10:45:45,200 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 10:45:45,201 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:45:41" (3/4) ... [2023-11-26 10:45:45,202 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2023-11-26 10:45:45,259 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc4ef70-6ce4-4aa1-882c-32d8fbd17672/bin/uautomizer-verify-VRDe98Ueme/witness.graphml [2023-11-26 10:45:45,260 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 10:45:45,260 INFO L158 Benchmark]: Toolchain (without parser) took 5221.52ms. Allocated memory was 144.7MB in the beginning and 174.1MB in the end (delta: 29.4MB). Free memory was 104.3MB in the beginning and 65.7MB in the end (delta: 38.6MB). Peak memory consumption was 69.0MB. Max. memory is 16.1GB. [2023-11-26 10:45:45,261 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 144.7MB. Free memory is still 117.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 10:45:45,261 INFO L158 Benchmark]: CACSL2BoogieTranslator took 572.05ms. Allocated memory is still 144.7MB. Free memory was 104.3MB in the beginning and 85.3MB in the end (delta: 19.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-26 10:45:45,262 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.63ms. Allocated memory is still 144.7MB. Free memory was 85.3MB in the beginning and 82.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 10:45:45,262 INFO L158 Benchmark]: Boogie Preprocessor took 61.97ms. Allocated memory is still 144.7MB. Free memory was 82.8MB in the beginning and 79.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 10:45:45,263 INFO L158 Benchmark]: RCFGBuilder took 574.55ms. Allocated memory is still 144.7MB. Free memory was 79.7MB in the beginning and 60.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-26 10:45:45,263 INFO L158 Benchmark]: BuchiAutomizer took 3868.44ms. Allocated memory was 144.7MB in the beginning and 174.1MB in the end (delta: 29.4MB). Free memory was 60.8MB in the beginning and 68.9MB in the end (delta: -8.1MB). Peak memory consumption was 22.9MB. Max. memory is 16.1GB. [2023-11-26 10:45:45,264 INFO L158 Benchmark]: Witness Printer took 59.95ms. Allocated memory is still 174.1MB. Free memory was 68.9MB in the beginning and 65.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 10:45:45,266 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 144.7MB. Free memory is still 117.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 572.05ms. Allocated memory is still 144.7MB. Free memory was 104.3MB in the beginning and 85.3MB in the end (delta: 19.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.63ms. Allocated memory is still 144.7MB. Free memory was 85.3MB in the beginning and 82.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.97ms. Allocated memory is still 144.7MB. Free memory was 82.8MB in the beginning and 79.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 574.55ms. Allocated memory is still 144.7MB. Free memory was 79.7MB in the beginning and 60.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * BuchiAutomizer took 3868.44ms. Allocated memory was 144.7MB in the beginning and 174.1MB in the end (delta: 29.4MB). Free memory was 60.8MB in the beginning and 68.9MB in the end (delta: -8.1MB). Peak memory consumption was 22.9MB. Max. memory is 16.1GB. * Witness Printer took 59.95ms. Allocated memory is still 174.1MB. Free memory was 68.9MB in the beginning and 65.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] - GenericResultAtLocation [Line: 58]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [58] - GenericResultAtLocation [Line: 424]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [424] - GenericResultAtLocation [Line: 611]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [611] - GenericResultAtLocation [Line: 683]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [683] - GenericResultAtLocation [Line: 778]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [778] - GenericResultAtLocation [Line: 877]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [877] - GenericResultAtLocation [Line: 912]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [912] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 423 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.7s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 2.9s. Construction of modules took 0.1s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 315 StatesRemovedByMinimization, 2 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, 1213 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1213 mSDsluCounter, 1972 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1470 mSDsCounter, 40 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 115 IncrementalHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 40 mSolverCounterUnsat, 502 mSDtfsCounter, 115 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 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: 625]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L228] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L436] int pumpRunning = 0; [L437] int systemActive = 1; [L685] int waterLevel = 1; [L686] int methaneLevelCritical = 0; [L779] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L855] int retValue_acc ; [L856] int tmp ; [L860] FCALL select_helpers() [L861] FCALL select_features() [L862] CALL, EXPR valid_product() [L904] int retValue_acc ; [L907] retValue_acc = 1 [L908] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L862] RET, EXPR valid_product() [L862] tmp = valid_product() [L864] COND TRUE \read(tmp) [L866] FCALL setup() [L867] CALL runTest() [L846] CALL test() [L616] int splverifierCounter ; [L617] int tmp ; [L618] int tmp___0 ; [L619] int tmp___1 ; [L620] int tmp___2 ; [L623] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L625] COND TRUE 1 [L627] COND TRUE splverifierCounter < 4 [L633] tmp = __VERIFIER_nondet_int() [L635] COND FALSE !(\read(tmp)) [L643] tmp___0 = __VERIFIER_nondet_int() [L645] COND FALSE !(\read(tmp___0)) [L653] tmp___2 = __VERIFIER_nondet_int() [L655] COND TRUE \read(tmp___2) [L657] CALL startSystem() [L607] systemActive = 1 [L657] RET startSystem() [L672] CALL timeShift() [L444] COND FALSE !(\read(pumpRunning)) [L451] COND TRUE \read(systemActive) [L453] CALL processEnvironment() [L473] int tmp ; [L476] COND TRUE ! pumpRunning [L478] CALL, EXPR isHighWaterLevel() [L570] int retValue_acc ; [L571] int tmp ; [L572] int tmp___0 ; [L576] CALL, EXPR isHighWaterSensorDry() [L765] int retValue_acc ; [L768] COND TRUE waterLevel < 2 [L769] retValue_acc = 1 [L770] return (retValue_acc); [L576] RET, EXPR isHighWaterSensorDry() [L576] tmp = isHighWaterSensorDry() [L578] COND TRUE \read(tmp) [L579] tmp___0 = 0 [L583] retValue_acc = tmp___0 [L584] return (retValue_acc); [L478] RET, EXPR isHighWaterLevel() [L478] tmp = isHighWaterLevel() [L480] COND FALSE !(\read(tmp)) [L486] FCALL processEnvironment__wrappee__base() [L453] RET processEnvironment() [L459] CALL __utac_acc__Specification3_spec__1() [L914] int tmp ; [L915] int tmp___0 ; [L916] int tmp___1 ; [L920] CALL, EXPR isMethaneLevelCritical() [L724] int retValue_acc ; [L727] retValue_acc = methaneLevelCritical [L728] return (retValue_acc); [L920] RET, EXPR isMethaneLevelCritical() [L920] tmp = isMethaneLevelCritical() [L922] COND FALSE !(\read(tmp)) [L926] CALL, EXPR getWaterLevel() [L756] int retValue_acc ; [L759] retValue_acc = waterLevel [L760] return (retValue_acc); [L926] RET, EXPR getWaterLevel() [L926] tmp___0 = getWaterLevel() [L928] COND FALSE !(tmp___0 == 2) [L459] RET __utac_acc__Specification3_spec__1() [L672] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 625]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L228] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L436] int pumpRunning = 0; [L437] int systemActive = 1; [L685] int waterLevel = 1; [L686] int methaneLevelCritical = 0; [L779] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L855] int retValue_acc ; [L856] int tmp ; [L860] FCALL select_helpers() [L861] FCALL select_features() [L862] CALL, EXPR valid_product() [L904] int retValue_acc ; [L907] retValue_acc = 1 [L908] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L862] RET, EXPR valid_product() [L862] tmp = valid_product() [L864] COND TRUE \read(tmp) [L866] FCALL setup() [L867] CALL runTest() [L846] CALL test() [L616] int splverifierCounter ; [L617] int tmp ; [L618] int tmp___0 ; [L619] int tmp___1 ; [L620] int tmp___2 ; [L623] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L625] COND TRUE 1 [L627] COND TRUE splverifierCounter < 4 [L633] tmp = __VERIFIER_nondet_int() [L635] COND FALSE !(\read(tmp)) [L643] tmp___0 = __VERIFIER_nondet_int() [L645] COND FALSE !(\read(tmp___0)) [L653] tmp___2 = __VERIFIER_nondet_int() [L655] COND TRUE \read(tmp___2) [L657] CALL startSystem() [L607] systemActive = 1 [L657] RET startSystem() [L672] CALL timeShift() [L444] COND FALSE !(\read(pumpRunning)) [L451] COND TRUE \read(systemActive) [L453] CALL processEnvironment() [L473] int tmp ; [L476] COND TRUE ! pumpRunning [L478] CALL, EXPR isHighWaterLevel() [L570] int retValue_acc ; [L571] int tmp ; [L572] int tmp___0 ; [L576] CALL, EXPR isHighWaterSensorDry() [L765] int retValue_acc ; [L768] COND TRUE waterLevel < 2 [L769] retValue_acc = 1 [L770] return (retValue_acc); [L576] RET, EXPR isHighWaterSensorDry() [L576] tmp = isHighWaterSensorDry() [L578] COND TRUE \read(tmp) [L579] tmp___0 = 0 [L583] retValue_acc = tmp___0 [L584] return (retValue_acc); [L478] RET, EXPR isHighWaterLevel() [L478] tmp = isHighWaterLevel() [L480] COND FALSE !(\read(tmp)) [L486] FCALL processEnvironment__wrappee__base() [L453] RET processEnvironment() [L459] CALL __utac_acc__Specification3_spec__1() [L914] int tmp ; [L915] int tmp___0 ; [L916] int tmp___1 ; [L920] CALL, EXPR isMethaneLevelCritical() [L724] int retValue_acc ; [L727] retValue_acc = methaneLevelCritical [L728] return (retValue_acc); [L920] RET, EXPR isMethaneLevelCritical() [L920] tmp = isMethaneLevelCritical() [L922] COND FALSE !(\read(tmp)) [L926] CALL, EXPR getWaterLevel() [L756] int retValue_acc ; [L759] retValue_acc = waterLevel [L760] return (retValue_acc); [L926] RET, EXPR getWaterLevel() [L926] tmp___0 = getWaterLevel() [L928] COND FALSE !(tmp___0 == 2) [L459] RET __utac_acc__Specification3_spec__1() [L672] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2023-11-26 10:45:45,313 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc4ef70-6ce4-4aa1-882c-32d8fbd17672/bin/uautomizer-verify-VRDe98Ueme/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)