./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_productSimulator.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637fef45-c92e-43af-9be3-b07c2ec07cee/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637fef45-c92e-43af-9be3-b07c2ec07cee/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637fef45-c92e-43af-9be3-b07c2ec07cee/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637fef45-c92e-43af-9be3-b07c2ec07cee/bin/uautomizer-j4sWxH34Be/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_productSimulator.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637fef45-c92e-43af-9be3-b07c2ec07cee/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637fef45-c92e-43af-9be3-b07c2ec07cee/bin/uautomizer-j4sWxH34Be --witnessprinter.witness.filename witness.graphml --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 45558e1c10008e5b16efe572a84fcf92b08797f54d586c51d45827b7e38254a6 .................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 20:00:16,514 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 20:00:16,516 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 20:00:16,565 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 20:00:16,566 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 20:00:16,571 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 20:00:16,573 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 20:00:16,578 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 20:00:16,580 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 20:00:16,591 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 20:00:16,592 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 20:00:16,594 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 20:00:16,595 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 20:00:16,598 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 20:00:16,601 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 20:00:16,607 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 20:00:16,611 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 20:00:16,612 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 20:00:16,614 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 20:00:16,619 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 20:00:16,623 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 20:00:16,625 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 20:00:16,628 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 20:00:16,630 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 20:00:16,636 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 20:00:16,637 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 20:00:16,637 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 20:00:16,639 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 20:00:16,640 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 20:00:16,641 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 20:00:16,642 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 20:00:16,643 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 20:00:16,645 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 20:00:16,646 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 20:00:16,648 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 20:00:16,648 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 20:00:16,649 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 20:00:16,649 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 20:00:16,650 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 20:00:16,651 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 20:00:16,651 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 20:00:16,652 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637fef45-c92e-43af-9be3-b07c2ec07cee/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-21 20:00:16,704 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 20:00:16,710 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 20:00:16,711 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 20:00:16,711 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 20:00:16,713 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 20:00:16,713 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 20:00:16,713 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 20:00:16,713 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-21 20:00:16,714 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-21 20:00:16,714 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-21 20:00:16,715 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-21 20:00:16,715 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-21 20:00:16,715 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-21 20:00:16,716 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 20:00:16,716 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 20:00:16,716 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 20:00:16,716 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 20:00:16,717 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 20:00:16,717 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 20:00:16,717 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-21 20:00:16,717 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-21 20:00:16,717 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-21 20:00:16,718 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 20:00:16,718 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 20:00:16,718 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-21 20:00:16,718 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 20:00:16,718 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-21 20:00:16,719 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 20:00:16,719 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 20:00:16,719 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 20:00:16,719 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 20:00:16,720 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 20:00:16,721 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-21 20:00:16,721 INFO L138 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_637fef45-c92e-43af-9be3-b07c2ec07cee/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637fef45-c92e-43af-9be3-b07c2ec07cee/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 45558e1c10008e5b16efe572a84fcf92b08797f54d586c51d45827b7e38254a6 [2021-10-21 20:00:16,985 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 20:00:17,011 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 20:00:17,014 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 20:00:17,015 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 20:00:17,017 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 20:00:17,017 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637fef45-c92e-43af-9be3-b07c2ec07cee/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/product-lines/minepump_spec4_productSimulator.cil.c [2021-10-21 20:00:17,090 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637fef45-c92e-43af-9be3-b07c2ec07cee/bin/uautomizer-j4sWxH34Be/data/c83babe87/4660a8da68504d619cbc156cc4c661af/FLAG0c36b2645 [2021-10-21 20:00:17,605 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 20:00:17,606 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637fef45-c92e-43af-9be3-b07c2ec07cee/sv-benchmarks/c/product-lines/minepump_spec4_productSimulator.cil.c [2021-10-21 20:00:17,622 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637fef45-c92e-43af-9be3-b07c2ec07cee/bin/uautomizer-j4sWxH34Be/data/c83babe87/4660a8da68504d619cbc156cc4c661af/FLAG0c36b2645 [2021-10-21 20:00:17,938 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637fef45-c92e-43af-9be3-b07c2ec07cee/bin/uautomizer-j4sWxH34Be/data/c83babe87/4660a8da68504d619cbc156cc4c661af [2021-10-21 20:00:17,940 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 20:00:17,941 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 20:00:17,944 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 20:00:17,944 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 20:00:17,947 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 20:00:17,948 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:00:17" (1/1) ... [2021-10-21 20:00:17,949 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75a018f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:00:17, skipping insertion in model container [2021-10-21 20:00:17,949 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:00:17" (1/1) ... [2021-10-21 20:00:17,956 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 20:00:17,998 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 20:00:18,284 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637fef45-c92e-43af-9be3-b07c2ec07cee/sv-benchmarks/c/product-lines/minepump_spec4_productSimulator.cil.c[9333,9346] [2021-10-21 20:00:18,373 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:00:18,383 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 20:00:18,416 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637fef45-c92e-43af-9be3-b07c2ec07cee/sv-benchmarks/c/product-lines/minepump_spec4_productSimulator.cil.c[9333,9346] [2021-10-21 20:00:18,453 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:00:18,481 INFO L208 MainTranslator]: Completed translation [2021-10-21 20:00:18,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:00:18 WrapperNode [2021-10-21 20:00:18,482 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 20:00:18,483 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 20:00:18,483 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 20:00:18,484 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 20:00:18,491 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:00:18" (1/1) ... [2021-10-21 20:00:18,510 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:00:18" (1/1) ... [2021-10-21 20:00:18,623 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 20:00:18,624 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 20:00:18,624 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 20:00:18,625 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 20:00:18,639 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:00:18" (1/1) ... [2021-10-21 20:00:18,640 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:00:18" (1/1) ... [2021-10-21 20:00:18,669 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:00:18" (1/1) ... [2021-10-21 20:00:18,670 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:00:18" (1/1) ... [2021-10-21 20:00:18,732 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:00:18" (1/1) ... [2021-10-21 20:00:18,748 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:00:18" (1/1) ... [2021-10-21 20:00:18,752 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:00:18" (1/1) ... [2021-10-21 20:00:18,763 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 20:00:18,764 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 20:00:18,764 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 20:00:18,764 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 20:00:18,765 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:00:18" (1/1) ... [2021-10-21 20:00:18,772 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:00:18,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637fef45-c92e-43af-9be3-b07c2ec07cee/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:00:18,796 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637fef45-c92e-43af-9be3-b07c2ec07cee/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:00:18,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637fef45-c92e-43af-9be3-b07c2ec07cee/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-21 20:00:18,845 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 20:00:18,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 20:00:18,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 20:00:18,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 20:00:20,241 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 20:00:20,242 INFO L299 CfgBuilder]: Removed 900 assume(true) statements. [2021-10-21 20:00:20,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:00:20 BoogieIcfgContainer [2021-10-21 20:00:20,245 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 20:00:20,246 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-21 20:00:20,246 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-21 20:00:20,249 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-21 20:00:20,250 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 20:00:20,250 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.10 08:00:17" (1/3) ... [2021-10-21 20:00:20,251 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@54a5b3f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 08:00:20, skipping insertion in model container [2021-10-21 20:00:20,252 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 20:00:20,252 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:00:18" (2/3) ... [2021-10-21 20:00:20,252 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@54a5b3f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 08:00:20, skipping insertion in model container [2021-10-21 20:00:20,252 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 20:00:20,252 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:00:20" (3/3) ... [2021-10-21 20:00:20,254 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_productSimulator.cil.c [2021-10-21 20:00:20,294 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-21 20:00:20,294 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-21 20:00:20,294 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-21 20:00:20,294 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-21 20:00:20,294 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-21 20:00:20,294 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-21 20:00:20,294 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-21 20:00:20,294 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-21 20:00:20,323 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 467 states, 466 states have (on average 1.5686695278969958) internal successors, (731), 466 states have internal predecessors, (731), 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) [2021-10-21 20:00:20,374 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 305 [2021-10-21 20:00:20,375 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:00:20,375 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:00:20,384 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:00:20,384 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:00:20,384 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-21 20:00:20,387 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 467 states, 466 states have (on average 1.5686695278969958) internal successors, (731), 466 states have internal predecessors, (731), 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) [2021-10-21 20:00:20,418 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 305 [2021-10-21 20:00:20,418 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:00:20,418 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:00:20,420 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:00:20,420 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:00:20,439 INFO L791 eck$LassoCheckResult]: Stem: 458#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(38);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(13);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string22.base, #t~string22.offset, 1);call write~init~int(80, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(117, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(109, #t~string22.base, 3 + #t~string22.offset, 1);call write~init~int(112, #t~string22.base, 4 + #t~string22.offset, 1);call write~init~int(58, #t~string22.base, 5 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 6 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(110, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 3 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string28.base, #t~string28.offset, 1);call write~init~int(32, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string30.base, #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 1 + #t~string30.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(13);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string75.base, #t~string75.offset, 1);call write~init~int(77, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(101, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(116, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(104, #t~string75.base, 4 + #t~string75.offset, 1);call write~init~int(58, #t~string75.base, 5 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 6 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string77.base, #t~string77.offset, 1);call write~init~int(82, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(73, #t~string77.base, 2 + #t~string77.offset, 1);call write~init~int(84, #t~string77.base, 3 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 4 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string79.base, #t~string79.offset, 1);call write~init~int(75, #t~string79.base, 1 + #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 2 + #t~string79.offset, 1);call #t~string81.base, #t~string81.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string81.base, #t~string81.offset, 1);call write~init~int(0, #t~string81.base, 1 + #t~string81.offset, 1);~cleanupTimeShifts~0 := 4;~__SELECTED_FEATURE_base~0 := 0;~__SELECTED_FEATURE_highWaterSensor~0 := 0;~__SELECTED_FEATURE_lowWaterSensor~0 := 0;~__SELECTED_FEATURE_methaneQuery~0 := 0;~__SELECTED_FEATURE_methaneAlarm~0 := 0;~__SELECTED_FEATURE_stopCommand~0 := 0;~__SELECTED_FEATURE_startCommand~0 := 0;~__GUIDSL_ROOT_PRODUCTION~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 388#L-1true havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0;~__GUIDSL_ROOT_PRODUCTION~0 := 1; 25#L1118true havoc select_features_#t~ret83, select_features_#t~ret84, select_features_#t~ret85, select_features_#t~ret86, select_features_#t~ret87, select_features_#t~ret88;~__SELECTED_FEATURE_base~0 := 1;havoc select_one_#res;havoc select_one_#t~nondet82, select_one_~retValue_acc~12, select_one_~choice~0;havoc select_one_~retValue_acc~12;select_one_~choice~0 := select_one_#t~nondet82;havoc select_one_#t~nondet82;select_one_~retValue_acc~12 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~12; 424#L1093true select_features_#t~ret83 := select_one_#res;~__SELECTED_FEATURE_highWaterSensor~0 := select_features_#t~ret83;havoc select_features_#t~ret83;havoc select_one_#res;havoc select_one_#t~nondet82, select_one_~retValue_acc~12, select_one_~choice~0;havoc select_one_~retValue_acc~12;select_one_~choice~0 := select_one_#t~nondet82;havoc select_one_#t~nondet82;select_one_~retValue_acc~12 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~12; 139#L1093-1true select_features_#t~ret84 := select_one_#res;~__SELECTED_FEATURE_lowWaterSensor~0 := select_features_#t~ret84;havoc select_features_#t~ret84;havoc select_one_#res;havoc select_one_#t~nondet82, select_one_~retValue_acc~12, select_one_~choice~0;havoc select_one_~retValue_acc~12;select_one_~choice~0 := select_one_#t~nondet82;havoc select_one_#t~nondet82;select_one_~retValue_acc~12 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~12; 419#L1093-2true select_features_#t~ret85 := select_one_#res;~__SELECTED_FEATURE_methaneQuery~0 := select_features_#t~ret85;havoc select_features_#t~ret85;havoc select_one_#res;havoc select_one_#t~nondet82, select_one_~retValue_acc~12, select_one_~choice~0;havoc select_one_~retValue_acc~12;select_one_~choice~0 := select_one_#t~nondet82;havoc select_one_#t~nondet82;select_one_~retValue_acc~12 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~12; 469#L1093-3true select_features_#t~ret86 := select_one_#res;~__SELECTED_FEATURE_methaneAlarm~0 := select_features_#t~ret86;havoc select_features_#t~ret86;havoc select_one_#res;havoc select_one_#t~nondet82, select_one_~retValue_acc~12, select_one_~choice~0;havoc select_one_~retValue_acc~12;select_one_~choice~0 := select_one_#t~nondet82;havoc select_one_#t~nondet82;select_one_~retValue_acc~12 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~12; 240#L1093-4true select_features_#t~ret87 := select_one_#res;~__SELECTED_FEATURE_stopCommand~0 := select_features_#t~ret87;havoc select_features_#t~ret87;havoc select_one_#res;havoc select_one_#t~nondet82, select_one_~retValue_acc~12, select_one_~choice~0;havoc select_one_~retValue_acc~12;select_one_~choice~0 := select_one_#t~nondet82;havoc select_one_#t~nondet82;select_one_~retValue_acc~12 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~12; 304#L1093-5true select_features_#t~ret88 := select_one_#res;~__SELECTED_FEATURE_startCommand~0 := select_features_#t~ret88;havoc select_features_#t~ret88; 401#L1110true havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := ~__SELECTED_FEATURE_base~0;valid_product_#res := valid_product_~retValue_acc~13; 196#L1126true main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 288#L140true assume 0 != main_~tmp~0; 214#L113true havoc test_#t~nondet33, test_#t~nondet34, test_#t~nondet35, test_#t~nondet36, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 338#L173-1true [2021-10-21 20:00:20,439 INFO L793 eck$LassoCheckResult]: Loop: 338#L173-1true assume !false; 363#L542true assume test_~splverifierCounter~0 < 4; 276#L543true test_~tmp~8 := test_#t~nondet33;havoc test_#t~nondet33; 135#L551true assume !(0 != test_~tmp~8); 260#L551-1true test_~tmp___0~3 := test_#t~nondet34;havoc test_#t~nondet34; 62#L561true assume !(0 != test_~tmp___0~3); 199#L561-1true test_~tmp___2~0 := test_#t~nondet35;havoc test_#t~nondet35; 342#L571true assume !(0 != test_~tmp___2~0);test_~tmp___1~0 := test_#t~nondet36;havoc test_#t~nondet36; 80#L583true assume !(0 != test_~tmp___1~0); 145#L583-1true assume !(0 != ~pumpRunning~0); 298#L207true assume !(0 != ~systemActive~0); 228#L214true havoc __utac_acc__Specification4_spec__1_#t~ret8, __utac_acc__Specification4_spec__1_#t~ret9, __utac_acc__Specification4_spec__1_~tmp~1, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; 134#L1058true __utac_acc__Specification4_spec__1_#t~ret8 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~1 := __utac_acc__Specification4_spec__1_#t~ret8;havoc __utac_acc__Specification4_spec__1_#t~ret8; 289#L173true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~1); 338#L173-1true [2021-10-21 20:00:20,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:00:20,447 INFO L82 PathProgramCache]: Analyzing trace with hash 1125405515, now seen corresponding path program 1 times [2021-10-21 20:00:20,455 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:00:20,456 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592963689] [2021-10-21 20:00:20,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:00:20,457 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:00:20,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:00:20,759 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:00:20,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:00:20,963 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:00:20,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:00:20,974 INFO L82 PathProgramCache]: Analyzing trace with hash 1299784648, now seen corresponding path program 1 times [2021-10-21 20:00:20,974 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:00:20,975 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555847878] [2021-10-21 20:00:20,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:00:20,975 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:00:20,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:00:20,997 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:00:21,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:00:21,013 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:00:21,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:00:21,017 INFO L82 PathProgramCache]: Analyzing trace with hash -1167266414, now seen corresponding path program 1 times [2021-10-21 20:00:21,017 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:00:21,017 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648032676] [2021-10-21 20:00:21,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:00:21,018 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:00:21,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:00:21,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:00:21,222 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:00:21,223 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648032676] [2021-10-21 20:00:21,224 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648032676] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:00:21,225 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:00:21,225 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-21 20:00:21,225 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72382863] [2021-10-21 20:00:21,364 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:00:21,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-21 20:00:21,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-10-21 20:00:21,383 INFO L87 Difference]: Start difference. First operand has 467 states, 466 states have (on average 1.5686695278969958) internal successors, (731), 466 states have internal predecessors, (731), 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 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 6 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:00:21,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:00:21,863 INFO L93 Difference]: Finished difference Result 1427 states and 2208 transitions. [2021-10-21 20:00:21,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-21 20:00:21,865 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1427 states and 2208 transitions. [2021-10-21 20:00:21,881 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 942 [2021-10-21 20:00:21,907 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1427 states to 1399 states and 2180 transitions. [2021-10-21 20:00:21,909 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1399 [2021-10-21 20:00:21,913 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1399 [2021-10-21 20:00:21,913 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1399 states and 2180 transitions. [2021-10-21 20:00:21,923 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:00:21,923 INFO L681 BuchiCegarLoop]: Abstraction has 1399 states and 2180 transitions. [2021-10-21 20:00:21,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1399 states and 2180 transitions. [2021-10-21 20:00:22,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1399 to 503. [2021-10-21 20:00:22,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 503 states, 503 states have (on average 1.5447316103379722) internal successors, (777), 502 states have internal predecessors, (777), 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) [2021-10-21 20:00:22,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 777 transitions. [2021-10-21 20:00:22,015 INFO L704 BuchiCegarLoop]: Abstraction has 503 states and 777 transitions. [2021-10-21 20:00:22,015 INFO L587 BuchiCegarLoop]: Abstraction has 503 states and 777 transitions. [2021-10-21 20:00:22,015 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-21 20:00:22,015 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 503 states and 777 transitions. [2021-10-21 20:00:22,019 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 336 [2021-10-21 20:00:22,019 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:00:22,019 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:00:22,022 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:00:22,022 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:00:22,023 INFO L791 eck$LassoCheckResult]: Stem: 2375#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(38);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(13);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string22.base, #t~string22.offset, 1);call write~init~int(80, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(117, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(109, #t~string22.base, 3 + #t~string22.offset, 1);call write~init~int(112, #t~string22.base, 4 + #t~string22.offset, 1);call write~init~int(58, #t~string22.base, 5 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 6 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(110, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 3 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string28.base, #t~string28.offset, 1);call write~init~int(32, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string30.base, #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 1 + #t~string30.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(13);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string75.base, #t~string75.offset, 1);call write~init~int(77, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(101, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(116, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(104, #t~string75.base, 4 + #t~string75.offset, 1);call write~init~int(58, #t~string75.base, 5 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 6 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string77.base, #t~string77.offset, 1);call write~init~int(82, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(73, #t~string77.base, 2 + #t~string77.offset, 1);call write~init~int(84, #t~string77.base, 3 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 4 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string79.base, #t~string79.offset, 1);call write~init~int(75, #t~string79.base, 1 + #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 2 + #t~string79.offset, 1);call #t~string81.base, #t~string81.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string81.base, #t~string81.offset, 1);call write~init~int(0, #t~string81.base, 1 + #t~string81.offset, 1);~cleanupTimeShifts~0 := 4;~__SELECTED_FEATURE_base~0 := 0;~__SELECTED_FEATURE_highWaterSensor~0 := 0;~__SELECTED_FEATURE_lowWaterSensor~0 := 0;~__SELECTED_FEATURE_methaneQuery~0 := 0;~__SELECTED_FEATURE_methaneAlarm~0 := 0;~__SELECTED_FEATURE_stopCommand~0 := 0;~__SELECTED_FEATURE_startCommand~0 := 0;~__GUIDSL_ROOT_PRODUCTION~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 2359#L-1 havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0;~__GUIDSL_ROOT_PRODUCTION~0 := 1; 1960#L1118 havoc select_features_#t~ret83, select_features_#t~ret84, select_features_#t~ret85, select_features_#t~ret86, select_features_#t~ret87, select_features_#t~ret88;~__SELECTED_FEATURE_base~0 := 1;havoc select_one_#res;havoc select_one_#t~nondet82, select_one_~retValue_acc~12, select_one_~choice~0;havoc select_one_~retValue_acc~12;select_one_~choice~0 := select_one_#t~nondet82;havoc select_one_#t~nondet82;select_one_~retValue_acc~12 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~12; 1961#L1093 select_features_#t~ret83 := select_one_#res;~__SELECTED_FEATURE_highWaterSensor~0 := select_features_#t~ret83;havoc select_features_#t~ret83;havoc select_one_#res;havoc select_one_#t~nondet82, select_one_~retValue_acc~12, select_one_~choice~0;havoc select_one_~retValue_acc~12;select_one_~choice~0 := select_one_#t~nondet82;havoc select_one_#t~nondet82;select_one_~retValue_acc~12 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~12; 2145#L1093-1 select_features_#t~ret84 := select_one_#res;~__SELECTED_FEATURE_lowWaterSensor~0 := select_features_#t~ret84;havoc select_features_#t~ret84;havoc select_one_#res;havoc select_one_#t~nondet82, select_one_~retValue_acc~12, select_one_~choice~0;havoc select_one_~retValue_acc~12;select_one_~choice~0 := select_one_#t~nondet82;havoc select_one_#t~nondet82;select_one_~retValue_acc~12 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~12; 2146#L1093-2 select_features_#t~ret85 := select_one_#res;~__SELECTED_FEATURE_methaneQuery~0 := select_features_#t~ret85;havoc select_features_#t~ret85;havoc select_one_#res;havoc select_one_#t~nondet82, select_one_~retValue_acc~12, select_one_~choice~0;havoc select_one_~retValue_acc~12;select_one_~choice~0 := select_one_#t~nondet82;havoc select_one_#t~nondet82;select_one_~retValue_acc~12 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~12; 2368#L1093-3 select_features_#t~ret86 := select_one_#res;~__SELECTED_FEATURE_methaneAlarm~0 := select_features_#t~ret86;havoc select_features_#t~ret86;havoc select_one_#res;havoc select_one_#t~nondet82, select_one_~retValue_acc~12, select_one_~choice~0;havoc select_one_~retValue_acc~12;select_one_~choice~0 := select_one_#t~nondet82;havoc select_one_#t~nondet82;select_one_~retValue_acc~12 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~12; 2268#L1093-4 select_features_#t~ret87 := select_one_#res;~__SELECTED_FEATURE_stopCommand~0 := select_features_#t~ret87;havoc select_features_#t~ret87;havoc select_one_#res;havoc select_one_#t~nondet82, select_one_~retValue_acc~12, select_one_~choice~0;havoc select_one_~retValue_acc~12;select_one_~choice~0 := select_one_#t~nondet82;havoc select_one_#t~nondet82;select_one_~retValue_acc~12 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~12; 2269#L1093-5 select_features_#t~ret88 := select_one_#res;~__SELECTED_FEATURE_startCommand~0 := select_features_#t~ret88;havoc select_features_#t~ret88; 2318#L1110 havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := ~__SELECTED_FEATURE_base~0;valid_product_#res := valid_product_~retValue_acc~13; 2213#L1126 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 2214#L140 assume 0 != main_~tmp~0; 2235#L113 havoc test_#t~nondet33, test_#t~nondet34, test_#t~nondet35, test_#t~nondet36, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 2166#L173-1 [2021-10-21 20:00:22,023 INFO L793 eck$LassoCheckResult]: Loop: 2166#L173-1 assume !false; 2337#L542 assume test_~splverifierCounter~0 < 4; 2299#L543 test_~tmp~8 := test_#t~nondet33;havoc test_#t~nondet33; 2139#L551 assume !(0 != test_~tmp~8); 1978#L551-1 test_~tmp___0~3 := test_#t~nondet34;havoc test_#t~nondet34; 2019#L561 assume !(0 != test_~tmp___0~3); 2020#L561-1 test_~tmp___2~0 := test_#t~nondet35;havoc test_#t~nondet35; 2217#L571 assume !(0 != test_~tmp___2~0);test_~tmp___1~0 := test_#t~nondet36;havoc test_#t~nondet36; 2048#L583 assume !(0 != test_~tmp___1~0); 2050#L583-1 assume !(0 != ~pumpRunning~0); 2155#L207 assume 0 != ~systemActive~0; 2060#L350 assume !(0 != ~__SELECTED_FEATURE_methaneAlarm~0); 2061#L307-2 assume !(0 != ~__SELECTED_FEATURE_lowWaterSensor~0); 2107#L264-8 assume !(0 != ~__SELECTED_FEATURE_highWaterSensor~0); 1931#L214 havoc __utac_acc__Specification4_spec__1_#t~ret8, __utac_acc__Specification4_spec__1_#t~ret9, __utac_acc__Specification4_spec__1_~tmp~1, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; 2137#L1058 __utac_acc__Specification4_spec__1_#t~ret8 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~1 := __utac_acc__Specification4_spec__1_#t~ret8;havoc __utac_acc__Specification4_spec__1_#t~ret8; 2138#L173 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~1); 2166#L173-1 [2021-10-21 20:00:22,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:00:22,025 INFO L82 PathProgramCache]: Analyzing trace with hash 1125405515, now seen corresponding path program 2 times [2021-10-21 20:00:22,025 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:00:22,025 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775457795] [2021-10-21 20:00:22,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:00:22,026 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:00:22,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:00:22,085 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:00:22,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:00:22,175 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:00:22,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:00:22,180 INFO L82 PathProgramCache]: Analyzing trace with hash -1493625367, now seen corresponding path program 1 times [2021-10-21 20:00:22,180 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:00:22,180 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937050613] [2021-10-21 20:00:22,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:00:22,182 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:00:22,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:00:22,189 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:00:22,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:00:22,196 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:00:22,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:00:22,203 INFO L82 PathProgramCache]: Analyzing trace with hash -1931444257, now seen corresponding path program 1 times [2021-10-21 20:00:22,203 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:00:22,204 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701363699] [2021-10-21 20:00:22,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:00:22,204 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:00:22,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:00:22,275 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:00:22,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:00:22,389 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:01:24,728 WARN L207 SmtUtils]: Spent 1.04 m on a formula simplification. DAG size of input: 553 DAG size of output: 495 [2021-10-21 20:02:22,747 WARN L207 SmtUtils]: Spent 28.39 s on a formula simplification that was a NOOP. DAG size: 444 [2021-10-21 20:02:22,883 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.10 08:02:22 BoogieIcfgContainer [2021-10-21 20:02:22,884 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-21 20:02:22,884 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 20:02:22,884 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 20:02:22,885 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 20:02:22,885 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:00:20" (3/4) ... [2021-10-21 20:02:22,888 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-21 20:02:22,941 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637fef45-c92e-43af-9be3-b07c2ec07cee/bin/uautomizer-j4sWxH34Be/witness.graphml [2021-10-21 20:02:22,941 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 20:02:22,942 INFO L168 Benchmark]: Toolchain (without parser) took 125000.57 ms. Allocated memory was 125.8 MB in the beginning and 203.4 MB in the end (delta: 77.6 MB). Free memory was 85.4 MB in the beginning and 89.2 MB in the end (delta: -3.8 MB). Peak memory consumption was 71.9 MB. Max. memory is 16.1 GB. [2021-10-21 20:02:22,943 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 125.8 MB. Free memory was 102.8 MB in the beginning and 102.8 MB in the end (delta: 82.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:02:22,943 INFO L168 Benchmark]: CACSL2BoogieTranslator took 538.89 ms. Allocated memory is still 125.8 MB. Free memory was 85.2 MB in the beginning and 92.4 MB in the end (delta: -7.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-21 20:02:22,944 INFO L168 Benchmark]: Boogie Procedure Inliner took 140.33 ms. Allocated memory is still 125.8 MB. Free memory was 92.4 MB in the beginning and 81.1 MB in the end (delta: 11.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-21 20:02:22,944 INFO L168 Benchmark]: Boogie Preprocessor took 138.78 ms. Allocated memory is still 125.8 MB. Free memory was 81.1 MB in the beginning and 74.4 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-21 20:02:22,945 INFO L168 Benchmark]: RCFGBuilder took 1481.20 ms. Allocated memory was 125.8 MB in the beginning and 165.7 MB in the end (delta: 39.8 MB). Free memory was 74.0 MB in the beginning and 132.2 MB in the end (delta: -58.2 MB). Peak memory consumption was 49.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:02:22,946 INFO L168 Benchmark]: BuchiAutomizer took 122638.02 ms. Allocated memory was 165.7 MB in the beginning and 203.4 MB in the end (delta: 37.7 MB). Free memory was 131.3 MB in the beginning and 92.3 MB in the end (delta: 39.0 MB). Peak memory consumption was 127.9 MB. Max. memory is 16.1 GB. [2021-10-21 20:02:22,946 INFO L168 Benchmark]: Witness Printer took 57.16 ms. Allocated memory is still 203.4 MB. Free memory was 92.3 MB in the beginning and 89.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:02:22,949 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 125.8 MB. Free memory was 102.8 MB in the beginning and 102.8 MB in the end (delta: 82.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 538.89 ms. Allocated memory is still 125.8 MB. Free memory was 85.2 MB in the beginning and 92.4 MB in the end (delta: -7.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 140.33 ms. Allocated memory is still 125.8 MB. Free memory was 92.4 MB in the beginning and 81.1 MB in the end (delta: 11.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 138.78 ms. Allocated memory is still 125.8 MB. Free memory was 81.1 MB in the beginning and 74.4 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1481.20 ms. Allocated memory was 125.8 MB in the beginning and 165.7 MB in the end (delta: 39.8 MB). Free memory was 74.0 MB in the beginning and 132.2 MB in the end (delta: -58.2 MB). Peak memory consumption was 49.1 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 122638.02 ms. Allocated memory was 165.7 MB in the beginning and 203.4 MB in the end (delta: 37.7 MB). Free memory was 131.3 MB in the beginning and 92.3 MB in the end (delta: 39.0 MB). Peak memory consumption was 127.9 MB. Max. memory is 16.1 GB. * Witness Printer took 57.16 ms. Allocated memory is still 203.4 MB. Free memory was 92.3 MB in the beginning and 89.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * 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 7 locations. The remainder module has 503 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 122.5s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 121.7s. Construction of modules took 0.2s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 76.1ms AutomataMinimizationTime, 1 MinimizatonAttempts, 896 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 503 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 724 SDtfs, 4238 SDslu, 5248 SDs, 0 SdLazy, 70 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 255.3ms Time 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 - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 541]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=9513} State at position 1 is {NULL=0, NULL=0, NULL=9536, NULL=9513, NULL=0, NULL=9515, NULL=0, NULL=9518, retValue_acc=1, methaneLevelCritical=0, NULL=0, NULL=9521, NULL=0, tmp=0, tmp___1=0, NULL=0, NULL=9525, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@687eca70=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5de1a7e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3153f8a8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5c227a19=0, waterLevel=1, NULL=0, __SELECTED_FEATURE_methaneAlarm=0, NULL=9519, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6eb53457=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1d932c5=0, NULL=9520, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5d4dbb8a=0, head=0, pumpRunning=0, tmp=1, NULL=9537, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@120f7bfb=0, NULL=0, tmp=1, NULL=0, NULL=9538, NULL=0, retValue_acc=1, __SELECTED_FEATURE_stopCommand=0, tmp___0=0, NULL=0, NULL=9529, NULL=9532, NULL=9534, NULL=9541, head=0, NULL=0, NULL=0, NULL=9528, retValue_acc=51, choice=51, \result=51, retValue_acc=0, __SELECTED_FEATURE_base=1, NULL=9540, __GUIDSL_ROOT_PRODUCTION=1, NULL=0, NULL=0, NULL=0, NULL=0, tmp___0=0, NULL=9522, NULL=0, NULL=9533, systemActive=1, \result=1, __SELECTED_FEATURE_lowWaterSensor=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=9526, NULL=9531, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@289301c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@707d8432=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4ef19750=0, NULL=9516, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7ca6ba83=0, __SELECTED_FEATURE_highWaterSensor=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@63400d89=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3951fd3=0, NULL=0, NULL=9514, NULL=9530, NULL=9539, __SELECTED_FEATURE_methaneQuery=0, NULL=9523, tmp___2=0, splverifierCounter=0, NULL=0, NULL=0, NULL=9527, NULL=9535, __SELECTED_FEATURE_startCommand=51, NULL=0, NULL=0, NULL=9524, NULL=0, NULL=9517} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L50] int cleanupTimeShifts = 4; [L155] int __SELECTED_FEATURE_base ; [L156] int __SELECTED_FEATURE_highWaterSensor ; [L157] int __SELECTED_FEATURE_lowWaterSensor ; [L158] int __SELECTED_FEATURE_methaneQuery ; [L159] int __SELECTED_FEATURE_methaneAlarm ; [L160] int __SELECTED_FEATURE_stopCommand ; [L161] int __SELECTED_FEATURE_startCommand ; [L162] int __GUIDSL_ROOT_PRODUCTION ; [L200] int pumpRunning = 0; [L201] int systemActive = 1; [L786] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L983] int waterLevel = 1; [L984] int methaneLevelCritical = 0; [L131] int retValue_acc ; [L132] int tmp ; [L1117] __GUIDSL_ROOT_PRODUCTION = 1 [L1102] __SELECTED_FEATURE_base = 1 [L1088] int retValue_acc ; [L1089] int choice = __VERIFIER_nondet_int(); [L1092] retValue_acc = choice [L1093] return (retValue_acc); [L1103] __SELECTED_FEATURE_highWaterSensor = select_one() [L1088] int retValue_acc ; [L1089] int choice = __VERIFIER_nondet_int(); [L1092] retValue_acc = choice [L1093] return (retValue_acc); [L1104] __SELECTED_FEATURE_lowWaterSensor = select_one() [L1088] int retValue_acc ; [L1089] int choice = __VERIFIER_nondet_int(); [L1092] retValue_acc = choice [L1093] return (retValue_acc); [L1105] __SELECTED_FEATURE_methaneQuery = select_one() [L1088] int retValue_acc ; [L1089] int choice = __VERIFIER_nondet_int(); [L1092] retValue_acc = choice [L1093] return (retValue_acc); [L1106] __SELECTED_FEATURE_methaneAlarm = select_one() [L1088] int retValue_acc ; [L1089] int choice = __VERIFIER_nondet_int(); [L1092] retValue_acc = choice [L1093] return (retValue_acc); [L1107] __SELECTED_FEATURE_stopCommand = select_one() [L1088] int retValue_acc ; [L1089] int choice = __VERIFIER_nondet_int(); [L1092] retValue_acc = choice [L1093] return (retValue_acc); [L1108] __SELECTED_FEATURE_startCommand = select_one() [L1122] int retValue_acc ; [L1125] retValue_acc = __SELECTED_FEATURE_base [L1126] return (retValue_acc); [L138] tmp = valid_product() [L140] COND TRUE \read(tmp) [L532] int splverifierCounter ; [L533] int tmp ; [L534] int tmp___0 ; [L535] int tmp___1 ; [L536] int tmp___2 ; [L539] splverifierCounter = 0 Loop: [L541] COND TRUE 1 [L543] COND TRUE splverifierCounter < 4 [L549] tmp = __VERIFIER_nondet_int() [L551] COND FALSE !(\read(tmp)) [L559] tmp___0 = __VERIFIER_nondet_int() [L561] COND FALSE !(\read(tmp___0)) [L569] tmp___2 = __VERIFIER_nondet_int() [L571] COND FALSE !(\read(tmp___2)) [L581] tmp___1 = __VERIFIER_nondet_int() [L583] COND FALSE !(\read(tmp___1)) [L207] COND FALSE !(\read(pumpRunning)) [L214] COND TRUE \read(systemActive) [L350] COND FALSE !(\read(__SELECTED_FEATURE_methaneAlarm)) [L307] COND FALSE !(\read(__SELECTED_FEATURE_lowWaterSensor)) [L264] COND FALSE !(\read(__SELECTED_FEATURE_highWaterSensor)) [L166] int tmp ; [L167] int tmp___0 ; [L1054] int retValue_acc ; [L1057] retValue_acc = waterLevel [L1058] return (retValue_acc); [L171] tmp = getWaterLevel() [L173] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-21 20:02:23,020 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637fef45-c92e-43af-9be3-b07c2ec07cee/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...