./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product19.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97fa3dd0-91c8-4e38-8b85-2fd5ce625c87/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97fa3dd0-91c8-4e38-8b85-2fd5ce625c87/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97fa3dd0-91c8-4e38-8b85-2fd5ce625c87/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97fa3dd0-91c8-4e38-8b85-2fd5ce625c87/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product19.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97fa3dd0-91c8-4e38-8b85-2fd5ce625c87/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97fa3dd0-91c8-4e38-8b85-2fd5ce625c87/bin/uautomizer-verify-uTZkv6EMXl --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 861f07fa59cb0cfcece09c1a4e6ddfbbabbcb5606dbdc5d8efc7c0dfaa196551 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:12:12,473 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:12:12,548 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97fa3dd0-91c8-4e38-8b85-2fd5ce625c87/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-12 02:12:12,554 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:12:12,555 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:12:12,584 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:12:12,585 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:12:12,586 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:12:12,587 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:12:12,588 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:12:12,588 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:12:12,589 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-12 02:12:12,590 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-12 02:12:12,591 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-12 02:12:12,591 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-12 02:12:12,592 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-12 02:12:12,593 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-12 02:12:12,594 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:12:12,594 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-12 02:12:12,595 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:12:12,596 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:12:12,596 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:12:12,597 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:12:12,598 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-12 02:12:12,598 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-12 02:12:12,599 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-12 02:12:12,599 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:12:12,600 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:12:12,600 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:12:12,601 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-12 02:12:12,601 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:12:12,602 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:12:12,602 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:12:12,603 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:12:12,603 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:12:12,604 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-12 02:12:12,604 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_97fa3dd0-91c8-4e38-8b85-2fd5ce625c87/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97fa3dd0-91c8-4e38-8b85-2fd5ce625c87/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 861f07fa59cb0cfcece09c1a4e6ddfbbabbcb5606dbdc5d8efc7c0dfaa196551 [2023-11-12 02:12:12,915 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:12:12,946 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:12:12,948 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:12:12,950 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:12:12,951 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:12:12,953 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97fa3dd0-91c8-4e38-8b85-2fd5ce625c87/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/product-lines/minepump_spec4_product19.cil.c [2023-11-12 02:12:16,167 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:12:16,519 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:12:16,519 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97fa3dd0-91c8-4e38-8b85-2fd5ce625c87/sv-benchmarks/c/product-lines/minepump_spec4_product19.cil.c [2023-11-12 02:12:16,556 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97fa3dd0-91c8-4e38-8b85-2fd5ce625c87/bin/uautomizer-verify-uTZkv6EMXl/data/ea445e0f6/f76b5789740b4e8c96e5cc0fe71cd70f/FLAGe27a67871 [2023-11-12 02:12:16,580 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97fa3dd0-91c8-4e38-8b85-2fd5ce625c87/bin/uautomizer-verify-uTZkv6EMXl/data/ea445e0f6/f76b5789740b4e8c96e5cc0fe71cd70f [2023-11-12 02:12:16,588 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:12:16,592 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:12:16,597 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:12:16,598 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:12:16,604 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:12:16,606 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:12:16" (1/1) ... [2023-11-12 02:12:16,608 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2413d8f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:12:16, skipping insertion in model container [2023-11-12 02:12:16,608 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:12:16" (1/1) ... [2023-11-12 02:12:16,678 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:12:17,027 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:12:17,042 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:12:17,052 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [49] [2023-11-12 02:12:17,054 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [415] [2023-11-12 02:12:17,055 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [511] [2023-11-12 02:12:17,055 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [685] [2023-11-12 02:12:17,055 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [694] [2023-11-12 02:12:17,055 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [762] [2023-11-12 02:12:17,056 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [861] [2023-11-12 02:12:17,056 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [896] [2023-11-12 02:12:17,138 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:12:17,160 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:12:17,160 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:12:17 WrapperNode [2023-11-12 02:12:17,160 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:12:17,168 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:12:17,168 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:12:17,169 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:12:17,177 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:12:17" (1/1) ... [2023-11-12 02:12:17,208 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:12:17" (1/1) ... [2023-11-12 02:12:17,244 INFO L138 Inliner]: procedures = 53, calls = 96, calls flagged for inlining = 49, calls inlined = 52, statements flattened = 334 [2023-11-12 02:12:17,245 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:12:17,246 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:12:17,246 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:12:17,246 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:12:17,257 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:12:17" (1/1) ... [2023-11-12 02:12:17,257 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:12:17" (1/1) ... [2023-11-12 02:12:17,260 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:12:17" (1/1) ... [2023-11-12 02:12:17,260 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:12:17" (1/1) ... [2023-11-12 02:12:17,269 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:12:17" (1/1) ... [2023-11-12 02:12:17,275 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:12:17" (1/1) ... [2023-11-12 02:12:17,277 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:12:17" (1/1) ... [2023-11-12 02:12:17,279 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:12:17" (1/1) ... [2023-11-12 02:12:17,283 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:12:17,284 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:12:17,285 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:12:17,285 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:12:17,286 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:12:17" (1/1) ... [2023-11-12 02:12:17,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:12:17,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97fa3dd0-91c8-4e38-8b85-2fd5ce625c87/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:12:17,320 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97fa3dd0-91c8-4e38-8b85-2fd5ce625c87/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:12:17,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97fa3dd0-91c8-4e38-8b85-2fd5ce625c87/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-12 02:12:17,368 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:12:17,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:12:17,368 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:12:17,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:12:17,445 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:12:17,447 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:12:17,837 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:12:17,846 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:12:17,847 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-12 02:12:17,849 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:12:17 BoogieIcfgContainer [2023-11-12 02:12:17,850 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:12:17,851 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-12 02:12:17,851 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-12 02:12:17,855 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-12 02:12:17,856 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-12 02:12:17,857 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 12.11 02:12:16" (1/3) ... [2023-11-12 02:12:17,858 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@699144f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.11 02:12:17, skipping insertion in model container [2023-11-12 02:12:17,858 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-12 02:12:17,858 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:12:17" (2/3) ... [2023-11-12 02:12:17,859 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@699144f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.11 02:12:17, skipping insertion in model container [2023-11-12 02:12:17,859 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-12 02:12:17,859 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:12:17" (3/3) ... [2023-11-12 02:12:17,861 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product19.cil.c [2023-11-12 02:12:17,928 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-12 02:12:17,928 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-12 02:12:17,929 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-12 02:12:17,929 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-12 02:12:17,929 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-12 02:12:17,929 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-12 02:12:17,929 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-12 02:12:17,930 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-12 02:12:17,938 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 109 states, 108 states have (on average 1.3518518518518519) internal successors, (146), 108 states have internal predecessors, (146), 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) [2023-11-12 02:12:17,980 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 70 [2023-11-12 02:12:17,982 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-12 02:12:17,982 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-12 02:12:17,990 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:12:17,990 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:12:17,990 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-12 02:12:17,991 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 109 states, 108 states have (on average 1.3518518518518519) internal successors, (146), 108 states have internal predecessors, (146), 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) [2023-11-12 02:12:17,998 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 70 [2023-11-12 02:12:17,998 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-12 02:12:17,998 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-12 02:12:17,999 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:12:18,000 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:12:18,006 INFO L748 eck$LassoCheckResult]: Stem: 26#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 32#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; 22#select_helpers_returnLabel#1true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 95#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; 80#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; 42#L848true assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 66#setup_returnLabel#1true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet43#1, test_#t~nondet44#1, test_#t~nondet45#1, test_#t~nondet46#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; 89#L706-2true [2023-11-12 02:12:18,007 INFO L750 eck$LassoCheckResult]: Loop: 89#L706-2true assume !false; 71#L707true assume test_~splverifierCounter~0#1 < 4; 12#L708true havoc test_#t~nondet43#1;test_~tmp~5#1 := test_#t~nondet43#1;havoc test_#t~nondet43#1; 43#L716true assume !(0 != test_~tmp~5#1); 92#L716-2true havoc test_#t~nondet44#1;test_~tmp___0~1#1 := test_#t~nondet44#1;havoc test_#t~nondet44#1; 81#L726true assume !(0 != test_~tmp___0~1#1); 70#L726-2true havoc test_#t~nondet45#1;test_~tmp___2~0#1 := test_#t~nondet45#1;havoc test_#t~nondet45#1; 27#L736true assume 0 != test_~tmp___2~0#1; 73#L742-2true assume { :begin_inline_timeShift } true; 88#L526true assume !(0 != ~pumpRunning~0); 93#L526-2true assume !(0 != ~systemActive~0); 85#L533-1true assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret49#1, __utac_acc__Specification4_spec__1_#t~ret50#1, __utac_acc__Specification4_spec__1_~tmp~7#1, __utac_acc__Specification4_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification4_spec__1_~tmp~7#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;havoc getWaterLevel_~retValue_acc~4#1;getWaterLevel_~retValue_acc~4#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~4#1; 58#getWaterLevel_returnLabel#1true __utac_acc__Specification4_spec__1_#t~ret49#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~7#1 := __utac_acc__Specification4_spec__1_#t~ret49#1;havoc __utac_acc__Specification4_spec__1_#t~ret49#1; 101#L905true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~7#1); 62#L905-1true havoc __utac_acc__Specification4_spec__1_#t~ret49#1, __utac_acc__Specification4_spec__1_#t~ret50#1, __utac_acc__Specification4_spec__1_~tmp~7#1, __utac_acc__Specification4_spec__1_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification4_spec__1 } true; 59#timeShift_returnLabel#1true assume { :end_inline_timeShift } true; 89#L706-2true [2023-11-12 02:12:18,014 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:12:18,014 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2023-11-12 02:12:18,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:12:18,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993153020] [2023-11-12 02:12:18,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:12:18,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:12:18,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:12:18,127 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:12:18,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:12:18,166 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:12:18,168 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:12:18,169 INFO L85 PathProgramCache]: Analyzing trace with hash -1634783066, now seen corresponding path program 1 times [2023-11-12 02:12:18,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:12:18,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741766158] [2023-11-12 02:12:18,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:12:18,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:12:18,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:12:18,182 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:12:18,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:12:18,192 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:12:18,194 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:12:18,195 INFO L85 PathProgramCache]: Analyzing trace with hash -279363990, now seen corresponding path program 1 times [2023-11-12 02:12:18,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:12:18,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127359574] [2023-11-12 02:12:18,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:12:18,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:12:18,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:12:18,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:12:18,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:12:18,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127359574] [2023-11-12 02:12:18,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127359574] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:12:18,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:12:18,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:12:18,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906490464] [2023-11-12 02:12:18,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:12:18,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:12:18,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:12:18,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:12:18,608 INFO L87 Difference]: Start difference. First operand has 109 states, 108 states have (on average 1.3518518518518519) internal successors, (146), 108 states have internal predecessors, (146), 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 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:12:18,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:12:18,729 INFO L93 Difference]: Finished difference Result 263 states and 335 transitions. [2023-11-12 02:12:18,731 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 263 states and 335 transitions. [2023-11-12 02:12:18,739 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 167 [2023-11-12 02:12:18,746 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 263 states to 233 states and 305 transitions. [2023-11-12 02:12:18,747 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 233 [2023-11-12 02:12:18,749 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 233 [2023-11-12 02:12:18,749 INFO L73 IsDeterministic]: Start isDeterministic. Operand 233 states and 305 transitions. [2023-11-12 02:12:18,752 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:12:18,752 INFO L218 hiAutomatonCegarLoop]: Abstraction has 233 states and 305 transitions. [2023-11-12 02:12:18,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states and 305 transitions. [2023-11-12 02:12:18,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 145. [2023-11-12 02:12:18,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 145 states have (on average 1.3103448275862069) internal successors, (190), 144 states have internal predecessors, (190), 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) [2023-11-12 02:12:18,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 190 transitions. [2023-11-12 02:12:18,804 INFO L240 hiAutomatonCegarLoop]: Abstraction has 145 states and 190 transitions. [2023-11-12 02:12:18,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:12:18,809 INFO L428 stractBuchiCegarLoop]: Abstraction has 145 states and 190 transitions. [2023-11-12 02:12:18,809 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-12 02:12:18,810 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 145 states and 190 transitions. [2023-11-12 02:12:18,813 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 104 [2023-11-12 02:12:18,813 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-12 02:12:18,814 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-12 02:12:18,815 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:12:18,815 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] [2023-11-12 02:12:18,816 INFO L748 eck$LassoCheckResult]: Stem: 457#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 458#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; 447#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 448#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; 438#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; 439#L848 assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 395#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet43#1, test_#t~nondet44#1, test_#t~nondet45#1, test_#t~nondet46#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; 396#L706-2 [2023-11-12 02:12:18,817 INFO L750 eck$LassoCheckResult]: Loop: 396#L706-2 assume !false; 410#L707 assume test_~splverifierCounter~0#1 < 4; 411#L708 havoc test_#t~nondet43#1;test_~tmp~5#1 := test_#t~nondet43#1;havoc test_#t~nondet43#1; 413#L716 assume !(0 != test_~tmp~5#1); 449#L716-2 havoc test_#t~nondet44#1;test_~tmp___0~1#1 := test_#t~nondet44#1;havoc test_#t~nondet44#1; 440#L726 assume !(0 != test_~tmp___0~1#1); 407#L726-2 havoc test_#t~nondet45#1;test_~tmp___2~0#1 := test_#t~nondet45#1;havoc test_#t~nondet45#1; 408#L736 assume 0 != test_~tmp___2~0#1; 417#L742-2 assume { :begin_inline_timeShift } true; 418#L526 assume !(0 != ~pumpRunning~0); 455#L526-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret32#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 461#L558 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 401#processEnvironment__wrappee__base_returnLabel#2 assume { :end_inline_processEnvironment__wrappee__base } true; 402#L558-1 havoc processEnvironment_#t~ret32#1, processEnvironment_~tmp~3#1;assume { :end_inline_processEnvironment } true; 451#L533-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret49#1, __utac_acc__Specification4_spec__1_#t~ret50#1, __utac_acc__Specification4_spec__1_~tmp~7#1, __utac_acc__Specification4_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification4_spec__1_~tmp~7#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;havoc getWaterLevel_~retValue_acc~4#1;getWaterLevel_~retValue_acc~4#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~4#1; 452#getWaterLevel_returnLabel#1 __utac_acc__Specification4_spec__1_#t~ret49#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~7#1 := __utac_acc__Specification4_spec__1_#t~ret49#1;havoc __utac_acc__Specification4_spec__1_#t~ret49#1; 477#L905 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~7#1); 478#L905-1 havoc __utac_acc__Specification4_spec__1_#t~ret49#1, __utac_acc__Specification4_spec__1_#t~ret50#1, __utac_acc__Specification4_spec__1_~tmp~7#1, __utac_acc__Specification4_spec__1_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification4_spec__1 } true; 482#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 396#L706-2 [2023-11-12 02:12:18,818 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:12:18,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2023-11-12 02:12:18,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:12:18,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116906760] [2023-11-12 02:12:18,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:12:18,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:12:18,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:12:18,832 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:12:18,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:12:18,847 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:12:18,847 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:12:18,848 INFO L85 PathProgramCache]: Analyzing trace with hash -313170352, now seen corresponding path program 1 times [2023-11-12 02:12:18,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:12:18,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902712854] [2023-11-12 02:12:18,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:12:18,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:12:18,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:12:18,857 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:12:18,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:12:18,866 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:12:18,867 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:12:18,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1988973068, now seen corresponding path program 1 times [2023-11-12 02:12:18,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:12:18,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750408869] [2023-11-12 02:12:18,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:12:18,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:12:18,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:12:18,886 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:12:18,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:12:18,905 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:12:20,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:12:20,105 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:12:20,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:12:20,186 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.11 02:12:20 BoogieIcfgContainer [2023-11-12 02:12:20,186 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-12 02:12:20,187 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 02:12:20,187 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 02:12:20,188 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 02:12:20,189 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:12:17" (3/4) ... [2023-11-12 02:12:20,195 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2023-11-12 02:12:20,266 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97fa3dd0-91c8-4e38-8b85-2fd5ce625c87/bin/uautomizer-verify-uTZkv6EMXl/witness.graphml [2023-11-12 02:12:20,271 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 02:12:20,272 INFO L158 Benchmark]: Toolchain (without parser) took 3680.05ms. Allocated memory was 138.4MB in the beginning and 178.3MB in the end (delta: 39.8MB). Free memory was 93.0MB in the beginning and 118.2MB in the end (delta: -25.1MB). Peak memory consumption was 16.6MB. Max. memory is 16.1GB. [2023-11-12 02:12:20,273 INFO L158 Benchmark]: CDTParser took 0.57ms. Allocated memory is still 138.4MB. Free memory is still 84.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:12:20,273 INFO L158 Benchmark]: CACSL2BoogieTranslator took 570.06ms. Allocated memory is still 138.4MB. Free memory was 93.0MB in the beginning and 74.2MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-12 02:12:20,274 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.53ms. Allocated memory is still 138.4MB. Free memory was 74.2MB in the beginning and 71.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:12:20,274 INFO L158 Benchmark]: Boogie Preprocessor took 37.64ms. Allocated memory is still 138.4MB. Free memory was 71.6MB in the beginning and 70.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:12:20,275 INFO L158 Benchmark]: RCFGBuilder took 565.58ms. Allocated memory was 138.4MB in the beginning and 178.3MB in the end (delta: 39.8MB). Free memory was 69.6MB in the beginning and 140.5MB in the end (delta: -70.9MB). Peak memory consumption was 18.7MB. Max. memory is 16.1GB. [2023-11-12 02:12:20,282 INFO L158 Benchmark]: BuchiAutomizer took 2335.75ms. Allocated memory is still 178.3MB. Free memory was 140.5MB in the beginning and 121.3MB in the end (delta: 19.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-12 02:12:20,283 INFO L158 Benchmark]: Witness Printer took 83.97ms. Allocated memory is still 178.3MB. Free memory was 121.3MB in the beginning and 118.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-12 02:12:20,286 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.57ms. Allocated memory is still 138.4MB. Free memory is still 84.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 570.06ms. Allocated memory is still 138.4MB. Free memory was 93.0MB in the beginning and 74.2MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.53ms. Allocated memory is still 138.4MB. Free memory was 74.2MB in the beginning and 71.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.64ms. Allocated memory is still 138.4MB. Free memory was 71.6MB in the beginning and 70.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 565.58ms. Allocated memory was 138.4MB in the beginning and 178.3MB in the end (delta: 39.8MB). Free memory was 69.6MB in the beginning and 140.5MB in the end (delta: -70.9MB). Peak memory consumption was 18.7MB. Max. memory is 16.1GB. * BuchiAutomizer took 2335.75ms. Allocated memory is still 178.3MB. Free memory was 140.5MB in the beginning and 121.3MB in the end (delta: 19.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 83.97ms. Allocated memory is still 178.3MB. Free memory was 121.3MB in the beginning and 118.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [49] - GenericResultAtLocation [Line: 415]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [415] - GenericResultAtLocation [Line: 511]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [511] - GenericResultAtLocation [Line: 685]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [685] - GenericResultAtLocation [Line: 694]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [694] - GenericResultAtLocation [Line: 762]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [762] - GenericResultAtLocation [Line: 861]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [861] - GenericResultAtLocation [Line: 896]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [896] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 145 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.2s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 88 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, 588 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 588 mSDsluCounter, 716 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 589 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 39 IncrementalHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 127 mSDtfsCounter, 39 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 706]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L423] int waterLevel = 1; [L424] int methaneLevelCritical = 0; [L518] int pumpRunning = 0; [L519] int systemActive = 1; [L763] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L839] int retValue_acc ; [L840] int tmp ; [L844] FCALL select_helpers() [L845] FCALL select_features() [L846] CALL, EXPR valid_product() [L888] int retValue_acc ; [L891] retValue_acc = 1 [L892] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L846] RET, EXPR valid_product() [L846] tmp = valid_product() [L848] COND TRUE \read(tmp) [L850] FCALL setup() [L851] CALL runTest() [L830] CALL test() [L697] int splverifierCounter ; [L698] int tmp ; [L699] int tmp___0 ; [L700] int tmp___1 ; [L701] int tmp___2 ; [L704] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L706] COND TRUE 1 [L708] COND TRUE splverifierCounter < 4 [L714] tmp = __VERIFIER_nondet_int() [L716] COND FALSE !(\read(tmp)) [L724] tmp___0 = __VERIFIER_nondet_int() [L726] COND FALSE !(\read(tmp___0)) [L734] tmp___2 = __VERIFIER_nondet_int() [L736] COND TRUE \read(tmp___2) [L751] CALL timeShift() [L526] COND FALSE !(\read(pumpRunning)) [L533] COND TRUE \read(systemActive) [L535] CALL processEnvironment() [L555] int tmp ; [L558] COND FALSE !(\read(pumpRunning)) [L573] FCALL processEnvironment__wrappee__base() [L535] RET processEnvironment() [L541] CALL __utac_acc__Specification4_spec__1() [L898] int tmp ; [L899] int tmp___0 ; [L903] CALL, EXPR getWaterLevel() [L494] int retValue_acc ; [L497] retValue_acc = waterLevel [L498] return (retValue_acc); [L903] RET, EXPR getWaterLevel() [L903] tmp = getWaterLevel() [L905] COND FALSE !(tmp == 0) [L541] RET __utac_acc__Specification4_spec__1() [L751] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 706]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L423] int waterLevel = 1; [L424] int methaneLevelCritical = 0; [L518] int pumpRunning = 0; [L519] int systemActive = 1; [L763] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L839] int retValue_acc ; [L840] int tmp ; [L844] FCALL select_helpers() [L845] FCALL select_features() [L846] CALL, EXPR valid_product() [L888] int retValue_acc ; [L891] retValue_acc = 1 [L892] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L846] RET, EXPR valid_product() [L846] tmp = valid_product() [L848] COND TRUE \read(tmp) [L850] FCALL setup() [L851] CALL runTest() [L830] CALL test() [L697] int splverifierCounter ; [L698] int tmp ; [L699] int tmp___0 ; [L700] int tmp___1 ; [L701] int tmp___2 ; [L704] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L706] COND TRUE 1 [L708] COND TRUE splverifierCounter < 4 [L714] tmp = __VERIFIER_nondet_int() [L716] COND FALSE !(\read(tmp)) [L724] tmp___0 = __VERIFIER_nondet_int() [L726] COND FALSE !(\read(tmp___0)) [L734] tmp___2 = __VERIFIER_nondet_int() [L736] COND TRUE \read(tmp___2) [L751] CALL timeShift() [L526] COND FALSE !(\read(pumpRunning)) [L533] COND TRUE \read(systemActive) [L535] CALL processEnvironment() [L555] int tmp ; [L558] COND FALSE !(\read(pumpRunning)) [L573] FCALL processEnvironment__wrappee__base() [L535] RET processEnvironment() [L541] CALL __utac_acc__Specification4_spec__1() [L898] int tmp ; [L899] int tmp___0 ; [L903] CALL, EXPR getWaterLevel() [L494] int retValue_acc ; [L497] retValue_acc = waterLevel [L498] return (retValue_acc); [L903] RET, EXPR getWaterLevel() [L903] tmp = getWaterLevel() [L905] COND FALSE !(tmp == 0) [L541] RET __utac_acc__Specification4_spec__1() [L751] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2023-11-12 02:12:20,328 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97fa3dd0-91c8-4e38-8b85-2fd5ce625c87/bin/uautomizer-verify-uTZkv6EMXl/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)