./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product55.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 9bd2c7ff 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_d4cdef97-ec3d-4b74-99df-c3bb087937c4/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4cdef97-ec3d-4b74-99df-c3bb087937c4/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4cdef97-ec3d-4b74-99df-c3bb087937c4/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4cdef97-ec3d-4b74-99df-c3bb087937c4/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product55.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4cdef97-ec3d-4b74-99df-c3bb087937c4/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4cdef97-ec3d-4b74-99df-c3bb087937c4/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1741a5d4e19b6faba6ff51056891b76c8b4c0acd4f550f71706571820842dcfa --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 08:06:21,973 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 08:06:22,079 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4cdef97-ec3d-4b74-99df-c3bb087937c4/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-19 08:06:22,085 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 08:06:22,086 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 08:06:22,129 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 08:06:22,129 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 08:06:22,130 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 08:06:22,131 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 08:06:22,136 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 08:06:22,138 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 08:06:22,138 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-19 08:06:22,139 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-19 08:06:22,141 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-19 08:06:22,141 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-19 08:06:22,142 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-19 08:06:22,142 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-19 08:06:22,143 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 08:06:22,143 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-19 08:06:22,144 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 08:06:22,144 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 08:06:22,145 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 08:06:22,145 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 08:06:22,146 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-19 08:06:22,146 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-19 08:06:22,146 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-19 08:06:22,147 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 08:06:22,147 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 08:06:22,147 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 08:06:22,148 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-19 08:06:22,149 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 08:06:22,149 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 08:06:22,150 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 08:06:22,150 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 08:06:22,150 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 08:06:22,151 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-19 08:06:22,151 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_d4cdef97-ec3d-4b74-99df-c3bb087937c4/bin/uautomizer-verify-uCwYo4JHxu/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4cdef97-ec3d-4b74-99df-c3bb087937c4/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1741a5d4e19b6faba6ff51056891b76c8b4c0acd4f550f71706571820842dcfa [2023-11-19 08:06:22,491 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 08:06:22,525 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 08:06:22,529 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 08:06:22,531 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 08:06:22,532 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 08:06:22,565 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4cdef97-ec3d-4b74-99df-c3bb087937c4/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/product-lines/minepump_spec4_product55.cil.c [2023-11-19 08:06:25,632 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 08:06:25,902 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 08:06:25,906 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4cdef97-ec3d-4b74-99df-c3bb087937c4/sv-benchmarks/c/product-lines/minepump_spec4_product55.cil.c [2023-11-19 08:06:25,927 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4cdef97-ec3d-4b74-99df-c3bb087937c4/bin/uautomizer-verify-uCwYo4JHxu/data/7a1bbe6ef/0f79086261944a2e8c4809e6d8185267/FLAGf0c4d42a8 [2023-11-19 08:06:25,944 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4cdef97-ec3d-4b74-99df-c3bb087937c4/bin/uautomizer-verify-uCwYo4JHxu/data/7a1bbe6ef/0f79086261944a2e8c4809e6d8185267 [2023-11-19 08:06:25,947 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 08:06:25,948 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 08:06:25,950 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 08:06:25,950 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 08:06:25,956 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 08:06:25,960 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:06:25" (1/1) ... [2023-11-19 08:06:25,962 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57a3e5c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:25, skipping insertion in model container [2023-11-19 08:06:25,962 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:06:25" (1/1) ... [2023-11-19 08:06:26,009 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 08:06:26,311 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:06:26,332 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 08:06:26,342 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [49] [2023-11-19 08:06:26,343 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [121] [2023-11-19 08:06:26,344 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [369] [2023-11-19 08:06:26,344 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [397] [2023-11-19 08:06:26,344 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [435] [2023-11-19 08:06:26,344 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [444] [2023-11-19 08:06:26,345 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [540] [2023-11-19 08:06:26,345 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [906] [2023-11-19 08:06:26,439 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:06:26,465 INFO L206 MainTranslator]: Completed translation [2023-11-19 08:06:26,465 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:26 WrapperNode [2023-11-19 08:06:26,465 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 08:06:26,466 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 08:06:26,467 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 08:06:26,467 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 08:06:26,474 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:26" (1/1) ... [2023-11-19 08:06:26,498 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:26" (1/1) ... [2023-11-19 08:06:26,544 INFO L138 Inliner]: procedures = 57, calls = 105, calls flagged for inlining = 58, calls inlined = 142, statements flattened = 958 [2023-11-19 08:06:26,544 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 08:06:26,545 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 08:06:26,545 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 08:06:26,545 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 08:06:26,559 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:26" (1/1) ... [2023-11-19 08:06:26,560 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:26" (1/1) ... [2023-11-19 08:06:26,567 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:26" (1/1) ... [2023-11-19 08:06:26,579 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:26" (1/1) ... [2023-11-19 08:06:26,597 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:26" (1/1) ... [2023-11-19 08:06:26,606 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:26" (1/1) ... [2023-11-19 08:06:26,611 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:26" (1/1) ... [2023-11-19 08:06:26,615 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:26" (1/1) ... [2023-11-19 08:06:26,622 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 08:06:26,623 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 08:06:26,623 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 08:06:26,624 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 08:06:26,625 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:26" (1/1) ... [2023-11-19 08:06:26,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:06:26,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4cdef97-ec3d-4b74-99df-c3bb087937c4/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:06:26,670 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4cdef97-ec3d-4b74-99df-c3bb087937c4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:06:26,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4cdef97-ec3d-4b74-99df-c3bb087937c4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-19 08:06:26,719 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 08:06:26,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 08:06:26,720 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 08:06:26,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 08:06:26,799 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 08:06:26,800 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 08:06:27,484 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 08:06:27,499 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 08:06:27,507 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 08:06:27,516 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:06:27 BoogieIcfgContainer [2023-11-19 08:06:27,518 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 08:06:27,522 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-19 08:06:27,523 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-19 08:06:27,527 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-19 08:06:27,528 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 08:06:27,528 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 08:06:25" (1/3) ... [2023-11-19 08:06:27,530 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4f4099a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 08:06:27, skipping insertion in model container [2023-11-19 08:06:27,530 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 08:06:27,530 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:26" (2/3) ... [2023-11-19 08:06:27,532 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4f4099a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 08:06:27, skipping insertion in model container [2023-11-19 08:06:27,533 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 08:06:27,533 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:06:27" (3/3) ... [2023-11-19 08:06:27,535 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product55.cil.c [2023-11-19 08:06:27,624 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-19 08:06:27,624 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-19 08:06:27,625 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-19 08:06:27,625 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-19 08:06:27,625 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-19 08:06:27,625 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-19 08:06:27,625 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-19 08:06:27,626 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-19 08:06:27,632 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 277 states, 276 states have (on average 1.3659420289855073) internal successors, (377), 276 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:06:27,705 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 182 [2023-11-19 08:06:27,705 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 08:06:27,706 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 08:06:27,717 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:06:27,717 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:06:27,717 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-19 08:06:27,718 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 277 states, 276 states have (on average 1.3659420289855073) internal successors, (377), 276 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:06:27,749 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 182 [2023-11-19 08:06:27,749 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 08:06:27,749 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 08:06:27,751 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:06:27,751 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:06:27,758 INFO L748 eck$LassoCheckResult]: Stem: 158#$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);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 169#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret25#1, main_~retValue_acc~6#1, main_~tmp~7#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 26#select_helpers_returnLabel#1true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 246#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~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 85#valid_product_returnLabel#1true main_#t~ret25#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret25#1;havoc main_#t~ret25#1; 230#L527true assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 63#setup_returnLabel#1true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 167#L65-2true [2023-11-19 08:06:27,759 INFO L750 eck$LassoCheckResult]: Loop: 167#L65-2true assume !false; 33#L66true assume test_~splverifierCounter~0#1 < 4; 264#L67true havoc test_#t~nondet4#1;test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 192#L75true assume !(0 != test_~tmp~0#1); 111#L75-2true havoc test_#t~nondet5#1;test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 36#L85true assume !(0 != test_~tmp___0~0#1); 128#L85-2true havoc test_#t~nondet6#1;test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 224#L95true assume 0 != test_~tmp___2~0#1; 80#L101-2true assume { :begin_inline_timeShift } true; 28#L139true assume !(0 != ~pumpRunning~0); 147#L139-2true assume !(0 != ~systemActive~0); 150#L146-1true assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret22#1, __utac_acc__Specification4_spec__1_#t~ret23#1, __utac_acc__Specification4_spec__1_~tmp~6#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification4_spec__1_~tmp~6#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~11#1;havoc getWaterLevel_~retValue_acc~11#1;getWaterLevel_~retValue_acc~11#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~11#1; 193#getWaterLevel_returnLabel#1true __utac_acc__Specification4_spec__1_#t~ret22#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~11#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~6#1 := __utac_acc__Specification4_spec__1_#t~ret22#1;havoc __utac_acc__Specification4_spec__1_#t~ret22#1; 210#L380true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~6#1); 134#L380-1true havoc __utac_acc__Specification4_spec__1_#t~ret22#1, __utac_acc__Specification4_spec__1_#t~ret23#1, __utac_acc__Specification4_spec__1_~tmp~6#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :end_inline___utac_acc__Specification4_spec__1 } true; 194#timeShift_returnLabel#1true assume { :end_inline_timeShift } true; 167#L65-2true [2023-11-19 08:06:27,796 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:06:27,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2023-11-19 08:06:27,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:06:27,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60446331] [2023-11-19 08:06:27,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:06:27,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:06:27,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:06:27,963 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:06:27,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:06:28,032 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 08:06:28,038 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:06:28,038 INFO L85 PathProgramCache]: Analyzing trace with hash -397644090, now seen corresponding path program 1 times [2023-11-19 08:06:28,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:06:28,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83379318] [2023-11-19 08:06:28,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:06:28,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:06:28,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:06:28,064 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:06:28,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:06:28,091 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 08:06:28,093 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:06:28,093 INFO L85 PathProgramCache]: Analyzing trace with hash 957774986, now seen corresponding path program 1 times [2023-11-19 08:06:28,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:06:28,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957164920] [2023-11-19 08:06:28,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:06:28,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:06:28,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:28,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:06:28,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:06:28,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957164920] [2023-11-19 08:06:28,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957164920] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:06:28,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:06:28,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 08:06:28,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066767790] [2023-11-19 08:06:28,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:06:28,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:06:28,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 08:06:28,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-19 08:06:28,657 INFO L87 Difference]: Start difference. First operand has 277 states, 276 states have (on average 1.3659420289855073) internal successors, (377), 276 states have internal predecessors, (377), 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) [2023-11-19 08:06:28,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:06:28,867 INFO L93 Difference]: Finished difference Result 599 states and 797 transitions. [2023-11-19 08:06:28,869 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 599 states and 797 transitions. [2023-11-19 08:06:28,887 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 391 [2023-11-19 08:06:28,904 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 599 states to 569 states and 767 transitions. [2023-11-19 08:06:28,906 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 569 [2023-11-19 08:06:28,909 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 569 [2023-11-19 08:06:28,910 INFO L73 IsDeterministic]: Start isDeterministic. Operand 569 states and 767 transitions. [2023-11-19 08:06:28,920 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:06:28,920 INFO L218 hiAutomatonCegarLoop]: Abstraction has 569 states and 767 transitions. [2023-11-19 08:06:28,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states and 767 transitions. [2023-11-19 08:06:28,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 313. [2023-11-19 08:06:28,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 313 states have (on average 1.3450479233226837) internal successors, (421), 312 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:06:29,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 421 transitions. [2023-11-19 08:06:29,003 INFO L240 hiAutomatonCegarLoop]: Abstraction has 313 states and 421 transitions. [2023-11-19 08:06:29,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 08:06:29,010 INFO L428 stractBuchiCegarLoop]: Abstraction has 313 states and 421 transitions. [2023-11-19 08:06:29,010 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-19 08:06:29,010 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 313 states and 421 transitions. [2023-11-19 08:06:29,014 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 216 [2023-11-19 08:06:29,014 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 08:06:29,014 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 08:06:29,017 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:06:29,017 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:06:29,018 INFO L748 eck$LassoCheckResult]: Stem: 1106#$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);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 1107#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret25#1, main_~retValue_acc~6#1, main_~tmp~7#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 940#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 941#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~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 1036#valid_product_returnLabel#1 main_#t~ret25#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret25#1;havoc main_#t~ret25#1; 1037#L527 assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 1000#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1001#L65-2 [2023-11-19 08:06:29,018 INFO L750 eck$LassoCheckResult]: Loop: 1001#L65-2 assume !false; 953#L66 assume test_~splverifierCounter~0#1 < 4; 954#L67 havoc test_#t~nondet4#1;test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 1127#L75 assume !(0 != test_~tmp~0#1); 1038#L75-2 havoc test_#t~nondet5#1;test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 959#L85 assume !(0 != test_~tmp___0~0#1); 961#L85-2 havoc test_#t~nondet6#1;test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 1088#L95 assume 0 != test_~tmp___2~0#1; 1027#L101-2 assume { :begin_inline_timeShift } true; 942#L139 assume !(0 != ~pumpRunning~0); 943#L139-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret10#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 991#L223 assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret11#1, isMethaneAlarm_~retValue_acc~0#1;havoc isMethaneAlarm_~retValue_acc~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;isMethaneLevelCritical_~retValue_acc~10#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~10#1; 992#isMethaneLevelCritical_returnLabel#1 isMethaneAlarm_#t~ret11#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~0#1 := isMethaneAlarm_#t~ret11#1;havoc isMethaneAlarm_#t~ret11#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~0#1; 1153#isMethaneAlarm_returnLabel#1 processEnvironment_#t~ret10#1 := isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret11#1, isMethaneAlarm_~retValue_acc~0#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~3#1 := processEnvironment_#t~ret10#1;havoc processEnvironment_#t~ret10#1; 1046#L227 assume 0 != processEnvironment_~tmp~3#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; 998#deactivatePump_returnLabel#2 assume { :end_inline_deactivatePump } true; 919#L223-1 havoc processEnvironment_#t~ret10#1, processEnvironment_~tmp~3#1;assume { :end_inline_processEnvironment } true; 1091#L146-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret22#1, __utac_acc__Specification4_spec__1_#t~ret23#1, __utac_acc__Specification4_spec__1_~tmp~6#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification4_spec__1_~tmp~6#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~11#1;havoc getWaterLevel_~retValue_acc~11#1;getWaterLevel_~retValue_acc~11#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~11#1; 1104#getWaterLevel_returnLabel#1 __utac_acc__Specification4_spec__1_#t~ret22#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~11#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~6#1 := __utac_acc__Specification4_spec__1_#t~ret22#1;havoc __utac_acc__Specification4_spec__1_#t~ret22#1; 1128#L380 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~6#1); 1078#L380-1 havoc __utac_acc__Specification4_spec__1_#t~ret22#1, __utac_acc__Specification4_spec__1_#t~ret23#1, __utac_acc__Specification4_spec__1_~tmp~6#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :end_inline___utac_acc__Specification4_spec__1 } true; 1093#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1001#L65-2 [2023-11-19 08:06:29,019 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:06:29,019 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2023-11-19 08:06:29,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:06:29,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978306039] [2023-11-19 08:06:29,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:06:29,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:06:29,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:06:29,050 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:06:29,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:06:29,072 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 08:06:29,076 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:06:29,077 INFO L85 PathProgramCache]: Analyzing trace with hash 1505608303, now seen corresponding path program 1 times [2023-11-19 08:06:29,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:06:29,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456595038] [2023-11-19 08:06:29,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:06:29,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:06:29,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:29,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:06:29,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:06:29,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456595038] [2023-11-19 08:06:29,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456595038] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:06:29,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:06:29,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 08:06:29,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898271850] [2023-11-19 08:06:29,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:06:29,135 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-19 08:06:29,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:06:29,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:06:29,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:06:29,137 INFO L87 Difference]: Start difference. First operand 313 states and 421 transitions. cyclomatic complexity: 111 Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:06:29,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:06:29,263 INFO L93 Difference]: Finished difference Result 318 states and 403 transitions. [2023-11-19 08:06:29,263 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 318 states and 403 transitions. [2023-11-19 08:06:29,267 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 225 [2023-11-19 08:06:29,271 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 318 states to 318 states and 403 transitions. [2023-11-19 08:06:29,272 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 318 [2023-11-19 08:06:29,273 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 318 [2023-11-19 08:06:29,274 INFO L73 IsDeterministic]: Start isDeterministic. Operand 318 states and 403 transitions. [2023-11-19 08:06:29,275 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:06:29,278 INFO L218 hiAutomatonCegarLoop]: Abstraction has 318 states and 403 transitions. [2023-11-19 08:06:29,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states and 403 transitions. [2023-11-19 08:06:29,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 318. [2023-11-19 08:06:29,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 318 states have (on average 1.2672955974842768) internal successors, (403), 317 states have internal predecessors, (403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:06:29,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 403 transitions. [2023-11-19 08:06:29,306 INFO L240 hiAutomatonCegarLoop]: Abstraction has 318 states and 403 transitions. [2023-11-19 08:06:29,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:06:29,309 INFO L428 stractBuchiCegarLoop]: Abstraction has 318 states and 403 transitions. [2023-11-19 08:06:29,310 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-19 08:06:29,315 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 318 states and 403 transitions. [2023-11-19 08:06:29,318 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 225 [2023-11-19 08:06:29,318 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 08:06:29,319 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 08:06:29,321 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:06:29,321 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, 1] [2023-11-19 08:06:29,321 INFO L748 eck$LassoCheckResult]: Stem: 1708#$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);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 1709#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret25#1, main_~retValue_acc~6#1, main_~tmp~7#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 1560#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1561#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~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 1638#valid_product_returnLabel#1 main_#t~ret25#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret25#1;havoc main_#t~ret25#1; 1639#L527 assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 1608#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1609#L65-2 [2023-11-19 08:06:29,322 INFO L750 eck$LassoCheckResult]: Loop: 1609#L65-2 assume !false; 1818#L66 assume test_~splverifierCounter~0#1 < 4; 1819#L67 havoc test_#t~nondet4#1;test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 1831#L75 assume !(0 != test_~tmp~0#1); 1829#L75-2 havoc test_#t~nondet5#1;test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 1827#L85 assume !(0 != test_~tmp___0~0#1); 1825#L85-2 havoc test_#t~nondet6#1;test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 1824#L95 assume 0 != test_~tmp___2~0#1; 1822#L101-2 assume { :begin_inline_timeShift } true; 1562#L139 assume !(0 != ~pumpRunning~0); 1563#L139-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret10#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 1603#L223 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret9#1, processEnvironment__wrappee__lowWaterSensor_~tmp~2#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~2#1; 1604#L197-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 1743#L171-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret20#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~12#1;havoc isHighWaterSensorDry_~retValue_acc~12#1; 1575#L990-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~12#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~12#1; 1576#isHighWaterSensorDry_returnLabel#4 isHighWaterLevel_#t~ret20#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~12#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret20#1;havoc isHighWaterLevel_#t~ret20#1; 1720#L325-9 assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~1#1 := 0; 1691#L325-11 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 1692#isHighWaterLevel_returnLabel#4 processEnvironment__wrappee__highWaterSensor_#t~ret8#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret20#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret8#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1; 1717#L175-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1657#processEnvironment__wrappee__base_returnLabel#7 assume { :end_inline_processEnvironment__wrappee__base } true; 1533#L171-7 havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1534#L197-3 havoc processEnvironment__wrappee__lowWaterSensor_#t~ret9#1, processEnvironment__wrappee__lowWaterSensor_~tmp~2#1;assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 1548#L223-1 havoc processEnvironment_#t~ret10#1, processEnvironment_~tmp~3#1;assume { :end_inline_processEnvironment } true; 1686#L146-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret22#1, __utac_acc__Specification4_spec__1_#t~ret23#1, __utac_acc__Specification4_spec__1_~tmp~6#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification4_spec__1_~tmp~6#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~11#1;havoc getWaterLevel_~retValue_acc~11#1;getWaterLevel_~retValue_acc~11#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~11#1; 1704#getWaterLevel_returnLabel#1 __utac_acc__Specification4_spec__1_#t~ret22#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~11#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~6#1 := __utac_acc__Specification4_spec__1_#t~ret22#1;havoc __utac_acc__Specification4_spec__1_#t~ret22#1; 1821#L380 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~6#1); 1689#L380-1 havoc __utac_acc__Specification4_spec__1_#t~ret22#1, __utac_acc__Specification4_spec__1_#t~ret23#1, __utac_acc__Specification4_spec__1_~tmp~6#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :end_inline___utac_acc__Specification4_spec__1 } true; 1690#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1609#L65-2 [2023-11-19 08:06:29,323 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:06:29,323 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2023-11-19 08:06:29,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:06:29,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429597677] [2023-11-19 08:06:29,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:06:29,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:06:29,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:06:29,335 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:06:29,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:06:29,352 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 08:06:29,352 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:06:29,353 INFO L85 PathProgramCache]: Analyzing trace with hash -435635529, now seen corresponding path program 1 times [2023-11-19 08:06:29,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:06:29,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352134778] [2023-11-19 08:06:29,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:06:29,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:06:29,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:06:29,366 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:06:29,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:06:29,380 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 08:06:29,380 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:06:29,381 INFO L85 PathProgramCache]: Analyzing trace with hash -561370253, now seen corresponding path program 1 times [2023-11-19 08:06:29,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:06:29,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626803647] [2023-11-19 08:06:29,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:06:29,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:06:29,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:06:29,403 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:06:29,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:06:29,419 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 08:06:30,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:06:30,632 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:06:30,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:06:30,699 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 08:06:30 BoogieIcfgContainer [2023-11-19 08:06:30,699 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-19 08:06:30,699 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 08:06:30,699 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 08:06:30,700 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 08:06:30,700 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:06:27" (3/4) ... [2023-11-19 08:06:30,701 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2023-11-19 08:06:30,764 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4cdef97-ec3d-4b74-99df-c3bb087937c4/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 08:06:30,765 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 08:06:30,765 INFO L158 Benchmark]: Toolchain (without parser) took 4816.87ms. Allocated memory was 188.7MB in the beginning and 270.5MB in the end (delta: 81.8MB). Free memory was 138.1MB in the beginning and 170.0MB in the end (delta: -32.0MB). Peak memory consumption was 51.9MB. Max. memory is 16.1GB. [2023-11-19 08:06:30,766 INFO L158 Benchmark]: CDTParser took 0.75ms. Allocated memory is still 188.7MB. Free memory was 154.3MB in the beginning and 154.3MB in the end (delta: 29.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 08:06:30,766 INFO L158 Benchmark]: CACSL2BoogieTranslator took 515.79ms. Allocated memory is still 188.7MB. Free memory was 138.1MB in the beginning and 118.5MB in the end (delta: 19.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-19 08:06:30,767 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.91ms. Allocated memory is still 188.7MB. Free memory was 118.5MB in the beginning and 114.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 08:06:30,767 INFO L158 Benchmark]: Boogie Preprocessor took 77.51ms. Allocated memory is still 188.7MB. Free memory was 114.3MB in the beginning and 110.8MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 08:06:30,768 INFO L158 Benchmark]: RCFGBuilder took 897.19ms. Allocated memory is still 188.7MB. Free memory was 110.8MB in the beginning and 75.2MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2023-11-19 08:06:30,768 INFO L158 Benchmark]: BuchiAutomizer took 3176.63ms. Allocated memory was 188.7MB in the beginning and 270.5MB in the end (delta: 81.8MB). Free memory was 75.2MB in the beginning and 173.2MB in the end (delta: -98.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 08:06:30,769 INFO L158 Benchmark]: Witness Printer took 65.51ms. Allocated memory is still 270.5MB. Free memory was 173.2MB in the beginning and 170.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 08:06:30,771 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.75ms. Allocated memory is still 188.7MB. Free memory was 154.3MB in the beginning and 154.3MB in the end (delta: 29.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 515.79ms. Allocated memory is still 188.7MB. Free memory was 138.1MB in the beginning and 118.5MB in the end (delta: 19.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.91ms. Allocated memory is still 188.7MB. Free memory was 118.5MB in the beginning and 114.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 77.51ms. Allocated memory is still 188.7MB. Free memory was 114.3MB in the beginning and 110.8MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 897.19ms. Allocated memory is still 188.7MB. Free memory was 110.8MB in the beginning and 75.2MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * BuchiAutomizer took 3176.63ms. Allocated memory was 188.7MB in the beginning and 270.5MB in the end (delta: 81.8MB). Free memory was 75.2MB in the beginning and 173.2MB in the end (delta: -98.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 65.51ms. Allocated memory is still 270.5MB. Free memory was 173.2MB in the beginning and 170.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [49] - GenericResultAtLocation [Line: 121]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [121] - GenericResultAtLocation [Line: 369]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [369] - GenericResultAtLocation [Line: 397]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [397] - GenericResultAtLocation [Line: 435]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [435] - GenericResultAtLocation [Line: 444]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [444] - GenericResultAtLocation [Line: 540]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [540] - GenericResultAtLocation [Line: 906]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [906] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 318 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.0s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.2s. Construction of modules took 0.1s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 256 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, 1926 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1926 mSDsluCounter, 2041 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1398 mSDsCounter, 44 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 82 IncrementalHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 44 mSolverCounterUnsat, 643 mSDtfsCounter, 82 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 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: 65]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L131] int pumpRunning = 0; [L132] int systemActive = 1; [L445] int cleanupTimeShifts = 4; [L710] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L907] int waterLevel = 1; [L908] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L518] int retValue_acc ; [L519] int tmp ; [L523] FCALL select_helpers() [L524] FCALL select_features() [L525] CALL, EXPR valid_product() [L427] int retValue_acc ; [L430] retValue_acc = 1 [L431] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L525] RET, EXPR valid_product() [L525] tmp = valid_product() [L527] COND TRUE \read(tmp) [L529] FCALL setup() [L530] CALL runTest() [L512] CALL test() [L56] int splverifierCounter ; [L57] int tmp ; [L58] int tmp___0 ; [L59] int tmp___1 ; [L60] int tmp___2 ; [L63] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L65] COND TRUE 1 [L67] COND TRUE splverifierCounter < 4 [L73] tmp = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp)) [L83] tmp___0 = __VERIFIER_nondet_int() [L85] COND FALSE !(\read(tmp___0)) [L93] tmp___2 = __VERIFIER_nondet_int() [L95] COND TRUE \read(tmp___2) [L110] CALL timeShift() [L139] COND FALSE !(\read(pumpRunning)) [L146] COND TRUE \read(systemActive) [L148] CALL processEnvironment() [L220] int tmp ; [L223] COND FALSE !(\read(pumpRunning)) [L238] CALL processEnvironment__wrappee__lowWaterSensor() [L194] int tmp ; [L197] COND FALSE !(\read(pumpRunning)) [L212] CALL processEnvironment__wrappee__highWaterSensor() [L168] int tmp ; [L171] COND TRUE ! pumpRunning [L173] CALL, EXPR isHighWaterLevel() [L317] int retValue_acc ; [L318] int tmp ; [L319] int tmp___0 ; [L323] CALL, EXPR isHighWaterSensorDry() [L987] int retValue_acc ; [L990] COND TRUE waterLevel < 2 [L991] retValue_acc = 1 [L992] return (retValue_acc); [L323] RET, EXPR isHighWaterSensorDry() [L323] tmp = isHighWaterSensorDry() [L325] COND TRUE \read(tmp) [L326] tmp___0 = 0 [L330] retValue_acc = tmp___0 [L331] return (retValue_acc); [L173] RET, EXPR isHighWaterLevel() [L173] tmp = isHighWaterLevel() [L175] COND FALSE !(\read(tmp)) [L181] FCALL processEnvironment__wrappee__base() [L212] RET processEnvironment__wrappee__highWaterSensor() [L238] RET processEnvironment__wrappee__lowWaterSensor() [L148] RET processEnvironment() [L154] CALL __utac_acc__Specification4_spec__1() [L373] int tmp ; [L374] int tmp___0 ; [L378] CALL, EXPR getWaterLevel() [L978] int retValue_acc ; [L981] retValue_acc = waterLevel [L982] return (retValue_acc); [L378] RET, EXPR getWaterLevel() [L378] tmp = getWaterLevel() [L380] COND FALSE !(tmp == 0) [L154] RET __utac_acc__Specification4_spec__1() [L110] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 65]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L131] int pumpRunning = 0; [L132] int systemActive = 1; [L445] int cleanupTimeShifts = 4; [L710] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L907] int waterLevel = 1; [L908] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L518] int retValue_acc ; [L519] int tmp ; [L523] FCALL select_helpers() [L524] FCALL select_features() [L525] CALL, EXPR valid_product() [L427] int retValue_acc ; [L430] retValue_acc = 1 [L431] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L525] RET, EXPR valid_product() [L525] tmp = valid_product() [L527] COND TRUE \read(tmp) [L529] FCALL setup() [L530] CALL runTest() [L512] CALL test() [L56] int splverifierCounter ; [L57] int tmp ; [L58] int tmp___0 ; [L59] int tmp___1 ; [L60] int tmp___2 ; [L63] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L65] COND TRUE 1 [L67] COND TRUE splverifierCounter < 4 [L73] tmp = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp)) [L83] tmp___0 = __VERIFIER_nondet_int() [L85] COND FALSE !(\read(tmp___0)) [L93] tmp___2 = __VERIFIER_nondet_int() [L95] COND TRUE \read(tmp___2) [L110] CALL timeShift() [L139] COND FALSE !(\read(pumpRunning)) [L146] COND TRUE \read(systemActive) [L148] CALL processEnvironment() [L220] int tmp ; [L223] COND FALSE !(\read(pumpRunning)) [L238] CALL processEnvironment__wrappee__lowWaterSensor() [L194] int tmp ; [L197] COND FALSE !(\read(pumpRunning)) [L212] CALL processEnvironment__wrappee__highWaterSensor() [L168] int tmp ; [L171] COND TRUE ! pumpRunning [L173] CALL, EXPR isHighWaterLevel() [L317] int retValue_acc ; [L318] int tmp ; [L319] int tmp___0 ; [L323] CALL, EXPR isHighWaterSensorDry() [L987] int retValue_acc ; [L990] COND TRUE waterLevel < 2 [L991] retValue_acc = 1 [L992] return (retValue_acc); [L323] RET, EXPR isHighWaterSensorDry() [L323] tmp = isHighWaterSensorDry() [L325] COND TRUE \read(tmp) [L326] tmp___0 = 0 [L330] retValue_acc = tmp___0 [L331] return (retValue_acc); [L173] RET, EXPR isHighWaterLevel() [L173] tmp = isHighWaterLevel() [L175] COND FALSE !(\read(tmp)) [L181] FCALL processEnvironment__wrappee__base() [L212] RET processEnvironment__wrappee__highWaterSensor() [L238] RET processEnvironment__wrappee__lowWaterSensor() [L148] RET processEnvironment() [L154] CALL __utac_acc__Specification4_spec__1() [L373] int tmp ; [L374] int tmp___0 ; [L378] CALL, EXPR getWaterLevel() [L978] int retValue_acc ; [L981] retValue_acc = waterLevel [L982] return (retValue_acc); [L378] RET, EXPR getWaterLevel() [L378] tmp = getWaterLevel() [L380] COND FALSE !(tmp == 0) [L154] RET __utac_acc__Specification4_spec__1() [L110] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2023-11-19 08:06:30,831 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4cdef97-ec3d-4b74-99df-c3bb087937c4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)