./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product58.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88f8d2eb-85bb-47f2-bae1-06b97997764b/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88f8d2eb-85bb-47f2-bae1-06b97997764b/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88f8d2eb-85bb-47f2-bae1-06b97997764b/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88f8d2eb-85bb-47f2-bae1-06b97997764b/bin/uautomizer-uyxdKDjOR8/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product58.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88f8d2eb-85bb-47f2-bae1-06b97997764b/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88f8d2eb-85bb-47f2-bae1-06b97997764b/bin/uautomizer-uyxdKDjOR8 --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 5ed8e4dea18b15d78522f05bcbacefb8bf743c0552ef5a7415602905a04fdc4c --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 12:52:17,479 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 12:52:17,480 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 12:52:17,500 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 12:52:17,500 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 12:52:17,501 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 12:52:17,502 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 12:52:17,504 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 12:52:17,505 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 12:52:17,506 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 12:52:17,507 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 12:52:17,508 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 12:52:17,508 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 12:52:17,509 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 12:52:17,510 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 12:52:17,511 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 12:52:17,512 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 12:52:17,513 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 12:52:17,514 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 12:52:17,516 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 12:52:17,517 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 12:52:17,518 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 12:52:17,519 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 12:52:17,520 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 12:52:17,523 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 12:52:17,524 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 12:52:17,524 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 12:52:17,525 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 12:52:17,525 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 12:52:17,526 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 12:52:17,526 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 12:52:17,527 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 12:52:17,528 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 12:52:17,528 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 12:52:17,529 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 12:52:17,529 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 12:52:17,530 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 12:52:17,530 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 12:52:17,530 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 12:52:17,531 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 12:52:17,532 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 12:52:17,532 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88f8d2eb-85bb-47f2-bae1-06b97997764b/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-12-13 12:52:17,553 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 12:52:17,553 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 12:52:17,554 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 12:52:17,554 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 12:52:17,555 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 12:52:17,555 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 12:52:17,555 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 12:52:17,555 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-12-13 12:52:17,555 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-12-13 12:52:17,556 INFO L138 SettingsManager]: * Use old map elimination=false [2022-12-13 12:52:17,556 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-12-13 12:52:17,556 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-12-13 12:52:17,556 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-12-13 12:52:17,556 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 12:52:17,556 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 12:52:17,557 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 12:52:17,557 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 12:52:17,557 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 12:52:17,557 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 12:52:17,557 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-12-13 12:52:17,557 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-12-13 12:52:17,557 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-12-13 12:52:17,558 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 12:52:17,558 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 12:52:17,558 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-12-13 12:52:17,558 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 12:52:17,558 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-12-13 12:52:17,558 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 12:52:17,558 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 12:52:17,559 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 12:52:17,559 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 12:52:17,560 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-12-13 12:52:17,560 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_88f8d2eb-85bb-47f2-bae1-06b97997764b/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88f8d2eb-85bb-47f2-bae1-06b97997764b/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ed8e4dea18b15d78522f05bcbacefb8bf743c0552ef5a7415602905a04fdc4c [2022-12-13 12:52:17,745 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 12:52:17,763 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 12:52:17,765 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 12:52:17,773 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 12:52:17,774 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 12:52:17,775 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88f8d2eb-85bb-47f2-bae1-06b97997764b/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/product-lines/minepump_spec1_product58.cil.c [2022-12-13 12:52:20,324 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 12:52:20,470 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 12:52:20,470 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88f8d2eb-85bb-47f2-bae1-06b97997764b/sv-benchmarks/c/product-lines/minepump_spec1_product58.cil.c [2022-12-13 12:52:20,478 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88f8d2eb-85bb-47f2-bae1-06b97997764b/bin/uautomizer-uyxdKDjOR8/data/85b8e12c7/8a34689513b94703849dabee35218047/FLAG1d0a8133f [2022-12-13 12:52:20,489 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88f8d2eb-85bb-47f2-bae1-06b97997764b/bin/uautomizer-uyxdKDjOR8/data/85b8e12c7/8a34689513b94703849dabee35218047 [2022-12-13 12:52:20,490 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 12:52:20,491 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 12:52:20,492 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 12:52:20,492 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 12:52:20,495 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 12:52:20,495 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:52:20" (1/1) ... [2022-12-13 12:52:20,496 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3841033f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:52:20, skipping insertion in model container [2022-12-13 12:52:20,496 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:52:20" (1/1) ... [2022-12-13 12:52:20,501 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 12:52:20,526 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 12:52:20,625 WARN L237 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_88f8d2eb-85bb-47f2-bae1-06b97997764b/sv-benchmarks/c/product-lines/minepump_spec1_product58.cil.c[1605,1618] [2022-12-13 12:52:20,695 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:52:20,705 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 12:52:20,714 WARN L237 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_88f8d2eb-85bb-47f2-bae1-06b97997764b/sv-benchmarks/c/product-lines/minepump_spec1_product58.cil.c[1605,1618] [2022-12-13 12:52:20,751 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:52:20,764 INFO L208 MainTranslator]: Completed translation [2022-12-13 12:52:20,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:52:20 WrapperNode [2022-12-13 12:52:20,765 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 12:52:20,766 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 12:52:20,766 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 12:52:20,766 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 12:52:20,771 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:52:20" (1/1) ... [2022-12-13 12:52:20,781 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:52:20" (1/1) ... [2022-12-13 12:52:20,810 INFO L138 Inliner]: procedures = 57, calls = 101, calls flagged for inlining = 54, calls inlined = 96, statements flattened = 672 [2022-12-13 12:52:20,810 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 12:52:20,811 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 12:52:20,811 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 12:52:20,811 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 12:52:20,819 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:52:20" (1/1) ... [2022-12-13 12:52:20,819 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:52:20" (1/1) ... [2022-12-13 12:52:20,821 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:52:20" (1/1) ... [2022-12-13 12:52:20,822 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:52:20" (1/1) ... [2022-12-13 12:52:20,828 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:52:20" (1/1) ... [2022-12-13 12:52:20,832 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:52:20" (1/1) ... [2022-12-13 12:52:20,834 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:52:20" (1/1) ... [2022-12-13 12:52:20,835 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:52:20" (1/1) ... [2022-12-13 12:52:20,845 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 12:52:20,846 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 12:52:20,847 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 12:52:20,847 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 12:52:20,847 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:52:20" (1/1) ... [2022-12-13 12:52:20,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:52:20,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88f8d2eb-85bb-47f2-bae1-06b97997764b/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:52:20,874 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88f8d2eb-85bb-47f2-bae1-06b97997764b/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:52:20,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88f8d2eb-85bb-47f2-bae1-06b97997764b/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-12-13 12:52:20,908 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 12:52:20,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 12:52:20,908 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 12:52:20,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 12:52:20,970 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 12:52:20,971 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 12:52:21,303 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 12:52:21,311 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 12:52:21,311 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-13 12:52:21,313 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:52:21 BoogieIcfgContainer [2022-12-13 12:52:21,314 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 12:52:21,315 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-12-13 12:52:21,315 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-12-13 12:52:21,317 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-12-13 12:52:21,318 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 12:52:21,318 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.12 12:52:20" (1/3) ... [2022-12-13 12:52:21,319 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1b9d9940 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 12:52:21, skipping insertion in model container [2022-12-13 12:52:21,319 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 12:52:21,319 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:52:20" (2/3) ... [2022-12-13 12:52:21,319 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1b9d9940 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 12:52:21, skipping insertion in model container [2022-12-13 12:52:21,319 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 12:52:21,319 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:52:21" (3/3) ... [2022-12-13 12:52:21,321 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product58.cil.c [2022-12-13 12:52:21,368 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-12-13 12:52:21,368 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-12-13 12:52:21,369 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-12-13 12:52:21,369 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-12-13 12:52:21,369 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-12-13 12:52:21,369 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-12-13 12:52:21,369 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-12-13 12:52:21,369 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-12-13 12:52:21,373 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 187 states, 186 states have (on average 1.3602150537634408) internal successors, (253), 186 states have internal predecessors, (253), 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) [2022-12-13 12:52:21,394 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 121 [2022-12-13 12:52:21,395 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 12:52:21,395 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 12:52:21,399 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:52:21,399 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:52:21,399 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-12-13 12:52:21,400 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 187 states, 186 states have (on average 1.3602150537634408) internal successors, (253), 186 states have internal predecessors, (253), 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) [2022-12-13 12:52:21,407 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 121 [2022-12-13 12:52:21,407 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 12:52:21,408 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 12:52:21,408 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:52:21,408 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:52:21,413 INFO L748 eck$LassoCheckResult]: Stem: 38#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 54#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret9#1, main_~retValue_acc~4#1, main_~tmp~0#1;havoc main_~retValue_acc~4#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 31#select_helpers_returnLabel#1true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 153#select_features_returnLabel#1true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 129#valid_product_returnLabel#1true main_#t~ret9#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret9#1;havoc main_#t~ret9#1; 40#L258true assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 98#setup_returnLabel#1true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet26#1, test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_~splverifierCounter~0#1, test_~tmp~7#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~7#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 100#L536-2true [2022-12-13 12:52:21,413 INFO L750 eck$LassoCheckResult]: Loop: 100#L536-2true assume !false; 121#L537true assume test_~splverifierCounter~0#1 < 4; 159#L538true test_~tmp~7#1 := test_#t~nondet26#1;havoc test_#t~nondet26#1; 46#L546true assume !(0 != test_~tmp~7#1); 56#L546-2true test_~tmp___0~3#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 174#L556true assume !(0 != test_~tmp___0~3#1); 27#L556-2true test_~tmp___2~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 160#L566true assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 67#L574true assume 0 != test_~tmp___1~0#1; 73#L574-2true assume { :begin_inline_timeShift } true; 81#L284true assume !(0 != ~pumpRunning~0); 28#L284-2true assume !(0 != ~systemActive~0); 69#L291-1true assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret24#1, __utac_acc__Specification1_spec__1_#t~ret25#1, __utac_acc__Specification1_spec__1_~tmp~6#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification1_spec__1_~tmp~6#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 102#isMethaneLevelCritical_returnLabel#3true __utac_acc__Specification1_spec__1_#t~ret24#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~6#1 := __utac_acc__Specification1_spec__1_#t~ret24#1;havoc __utac_acc__Specification1_spec__1_#t~ret24#1; 39#L508true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~6#1); 36#L508-1true assume { :end_inline___utac_acc__Specification1_spec__1 } true; 82#timeShift_returnLabel#1true assume { :end_inline_timeShift } true; 100#L536-2true [2022-12-13 12:52:21,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:52:21,418 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-12-13 12:52:21,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:52:21,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162840067] [2022-12-13 12:52:21,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:52:21,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:52:21,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:52:21,504 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:52:21,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:52:21,533 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:52:21,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:52:21,535 INFO L85 PathProgramCache]: Analyzing trace with hash -1659451934, now seen corresponding path program 1 times [2022-12-13 12:52:21,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:52:21,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142626628] [2022-12-13 12:52:21,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:52:21,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:52:21,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:52:21,545 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:52:21,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:52:21,554 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:52:21,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:52:21,556 INFO L85 PathProgramCache]: Analyzing trace with hash 1703833758, now seen corresponding path program 1 times [2022-12-13 12:52:21,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:52:21,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289614241] [2022-12-13 12:52:21,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:52:21,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:52:21,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:52:21,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:52:21,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:52:21,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289614241] [2022-12-13 12:52:21,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289614241] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:52:21,730 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:52:21,730 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 12:52:21,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583508014] [2022-12-13 12:52:21,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:52:21,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:52:21,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 12:52:21,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 12:52:21,873 INFO L87 Difference]: Start difference. First operand has 187 states, 186 states have (on average 1.3602150537634408) internal successors, (253), 186 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:52:21,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:52:21,936 INFO L93 Difference]: Finished difference Result 184 states and 239 transitions. [2022-12-13 12:52:21,937 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 184 states and 239 transitions. [2022-12-13 12:52:21,943 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 117 [2022-12-13 12:52:21,946 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 184 states to 174 states and 229 transitions. [2022-12-13 12:52:21,947 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 174 [2022-12-13 12:52:21,947 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 174 [2022-12-13 12:52:21,948 INFO L73 IsDeterministic]: Start isDeterministic. Operand 174 states and 229 transitions. [2022-12-13 12:52:21,948 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:52:21,948 INFO L218 hiAutomatonCegarLoop]: Abstraction has 174 states and 229 transitions. [2022-12-13 12:52:21,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states and 229 transitions. [2022-12-13 12:52:21,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2022-12-13 12:52:21,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 174 states have (on average 1.3160919540229885) internal successors, (229), 173 states have internal predecessors, (229), 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) [2022-12-13 12:52:21,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 229 transitions. [2022-12-13 12:52:21,973 INFO L240 hiAutomatonCegarLoop]: Abstraction has 174 states and 229 transitions. [2022-12-13 12:52:21,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 12:52:21,976 INFO L428 stractBuchiCegarLoop]: Abstraction has 174 states and 229 transitions. [2022-12-13 12:52:21,977 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-12-13 12:52:21,977 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 174 states and 229 transitions. [2022-12-13 12:52:21,978 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 117 [2022-12-13 12:52:21,978 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 12:52:21,978 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 12:52:21,978 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:52:21,978 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] [2022-12-13 12:52:21,979 INFO L748 eck$LassoCheckResult]: Stem: 451#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 452#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret9#1, main_~retValue_acc~4#1, main_~tmp~0#1;havoc main_~retValue_acc~4#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 441#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 442#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 546#valid_product_returnLabel#1 main_#t~ret9#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret9#1;havoc main_#t~ret9#1; 457#L258 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 458#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet26#1, test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_~splverifierCounter~0#1, test_~tmp~7#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~7#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 507#L536-2 [2022-12-13 12:52:21,979 INFO L750 eck$LassoCheckResult]: Loop: 507#L536-2 assume !false; 523#L537 assume test_~splverifierCounter~0#1 < 4; 538#L538 test_~tmp~7#1 := test_#t~nondet26#1;havoc test_#t~nondet26#1; 464#L546 assume !(0 != test_~tmp~7#1); 395#L546-2 test_~tmp___0~3#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 478#L556 assume !(0 != test_~tmp___0~3#1); 433#L556-2 test_~tmp___2~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 434#L566 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 499#startSystem_returnLabel#1 assume { :end_inline_startSystem } true; 496#L574-2 assume { :begin_inline_timeShift } true; 502#L284 assume !(0 != ~pumpRunning~0); 435#L284-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret11#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 436#L342 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret10#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 462#L316-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 389#processEnvironment__wrappee__base_returnLabel#4 assume { :end_inline_processEnvironment__wrappee__base } true; 390#L316-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 409#L342-1 assume { :end_inline_processEnvironment } true; 410#L291-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret24#1, __utac_acc__Specification1_spec__1_#t~ret25#1, __utac_acc__Specification1_spec__1_~tmp~6#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification1_spec__1_~tmp~6#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 497#isMethaneLevelCritical_returnLabel#3 __utac_acc__Specification1_spec__1_#t~ret24#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~6#1 := __utac_acc__Specification1_spec__1_#t~ret24#1;havoc __utac_acc__Specification1_spec__1_#t~ret24#1; 453#L508 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~6#1); 425#L508-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 448#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 507#L536-2 [2022-12-13 12:52:21,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:52:21,979 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-12-13 12:52:21,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:52:21,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132058716] [2022-12-13 12:52:21,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:52:21,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:52:21,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:52:21,985 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:52:21,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:52:21,991 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:52:21,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:52:21,992 INFO L85 PathProgramCache]: Analyzing trace with hash -887523724, now seen corresponding path program 1 times [2022-12-13 12:52:21,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:52:21,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023553726] [2022-12-13 12:52:21,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:52:21,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:52:21,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:52:22,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:52:22,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:52:22,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023553726] [2022-12-13 12:52:22,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023553726] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:52:22,007 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:52:22,007 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 12:52:22,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203053530] [2022-12-13 12:52:22,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:52:22,007 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-12-13 12:52:22,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:52:22,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:52:22,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:52:22,008 INFO L87 Difference]: Start difference. First operand 174 states and 229 transitions. cyclomatic complexity: 57 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) [2022-12-13 12:52:22,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:52:22,065 INFO L93 Difference]: Finished difference Result 236 states and 298 transitions. [2022-12-13 12:52:22,066 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 236 states and 298 transitions. [2022-12-13 12:52:22,068 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 164 [2022-12-13 12:52:22,070 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 236 states to 236 states and 298 transitions. [2022-12-13 12:52:22,070 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 236 [2022-12-13 12:52:22,070 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 236 [2022-12-13 12:52:22,070 INFO L73 IsDeterministic]: Start isDeterministic. Operand 236 states and 298 transitions. [2022-12-13 12:52:22,071 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:52:22,071 INFO L218 hiAutomatonCegarLoop]: Abstraction has 236 states and 298 transitions. [2022-12-13 12:52:22,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states and 298 transitions. [2022-12-13 12:52:22,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 236. [2022-12-13 12:52:22,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 236 states have (on average 1.2627118644067796) internal successors, (298), 235 states have internal predecessors, (298), 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) [2022-12-13 12:52:22,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 298 transitions. [2022-12-13 12:52:22,081 INFO L240 hiAutomatonCegarLoop]: Abstraction has 236 states and 298 transitions. [2022-12-13 12:52:22,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:52:22,082 INFO L428 stractBuchiCegarLoop]: Abstraction has 236 states and 298 transitions. [2022-12-13 12:52:22,082 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-12-13 12:52:22,082 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 236 states and 298 transitions. [2022-12-13 12:52:22,084 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 164 [2022-12-13 12:52:22,084 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 12:52:22,084 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 12:52:22,085 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:52:22,085 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] [2022-12-13 12:52:22,085 INFO L748 eck$LassoCheckResult]: Stem: 867#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 868#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret9#1, main_~retValue_acc~4#1, main_~tmp~0#1;havoc main_~retValue_acc~4#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 857#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 858#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 970#valid_product_returnLabel#1 main_#t~ret9#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret9#1;havoc main_#t~ret9#1; 871#L258 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 872#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet26#1, test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_~splverifierCounter~0#1, test_~tmp~7#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~7#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 930#L536-2 [2022-12-13 12:52:22,086 INFO L750 eck$LassoCheckResult]: Loop: 930#L536-2 assume !false; 944#L537 assume test_~splverifierCounter~0#1 < 4; 963#L538 test_~tmp~7#1 := test_#t~nondet26#1;havoc test_#t~nondet26#1; 881#L546 assume !(0 != test_~tmp~7#1); 810#L546-2 test_~tmp___0~3#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 895#L556 assume !(0 != test_~tmp___0~3#1); 849#L556-2 test_~tmp___2~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 850#L566 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 915#L574 assume 0 != test_~tmp___1~0#1; 916#L574-2 assume { :begin_inline_timeShift } true; 922#L284 assume !(0 != ~pumpRunning~0); 851#L284-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret11#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 852#L342 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret10#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 880#L316-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret22#1, isHighWaterLevel_~retValue_acc~7#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~7#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; 820#L150-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 821#isHighWaterSensorDry_returnLabel#2 isHighWaterLevel_#t~ret22#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret22#1;havoc isHighWaterLevel_#t~ret22#1; 892#L462-3 assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~0#1 := 0; 979#L462-5 isHighWaterLevel_~retValue_acc~7#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; 989#isHighWaterLevel_returnLabel#2 processEnvironment__wrappee__highWaterSensor_#t~ret10#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret10#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret10#1; 980#L320-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 883#processEnvironment__wrappee__base_returnLabel#3 assume { :end_inline_processEnvironment__wrappee__base } true; 884#L316-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 824#L342-1 assume { :end_inline_processEnvironment } true; 825#L291-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret24#1, __utac_acc__Specification1_spec__1_#t~ret25#1, __utac_acc__Specification1_spec__1_~tmp~6#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification1_spec__1_~tmp~6#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 917#isMethaneLevelCritical_returnLabel#3 __utac_acc__Specification1_spec__1_#t~ret24#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~6#1 := __utac_acc__Specification1_spec__1_#t~ret24#1;havoc __utac_acc__Specification1_spec__1_#t~ret24#1; 869#L508 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~6#1); 840#L508-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 864#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 930#L536-2 [2022-12-13 12:52:22,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:52:22,086 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-12-13 12:52:22,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:52:22,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595488555] [2022-12-13 12:52:22,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:52:22,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:52:22,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:52:22,095 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:52:22,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:52:22,103 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:52:22,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:52:22,104 INFO L85 PathProgramCache]: Analyzing trace with hash -44819893, now seen corresponding path program 1 times [2022-12-13 12:52:22,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:52:22,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206508335] [2022-12-13 12:52:22,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:52:22,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:52:22,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:52:22,113 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:52:22,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:52:22,121 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:52:22,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:52:22,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1295801841, now seen corresponding path program 1 times [2022-12-13 12:52:22,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:52:22,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077170292] [2022-12-13 12:52:22,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:52:22,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:52:22,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:52:22,134 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:52:22,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:52:22,147 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:52:22,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:52:22,905 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:52:22,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:52:22,941 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.12 12:52:22 BoogieIcfgContainer [2022-12-13 12:52:22,941 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-12-13 12:52:22,942 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 12:52:22,942 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 12:52:22,942 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 12:52:22,942 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:52:21" (3/4) ... [2022-12-13 12:52:22,944 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-12-13 12:52:22,977 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88f8d2eb-85bb-47f2-bae1-06b97997764b/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 12:52:22,977 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 12:52:22,978 INFO L158 Benchmark]: Toolchain (without parser) took 2486.62ms. Allocated memory was 130.0MB in the beginning and 157.3MB in the end (delta: 27.3MB). Free memory was 91.9MB in the beginning and 100.9MB in the end (delta: -9.0MB). Peak memory consumption was 18.6MB. Max. memory is 16.1GB. [2022-12-13 12:52:22,978 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 100.7MB. Free memory was 73.4MB in the beginning and 73.4MB in the end (delta: 31.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 12:52:22,979 INFO L158 Benchmark]: CACSL2BoogieTranslator took 272.92ms. Allocated memory is still 130.0MB. Free memory was 91.5MB in the beginning and 73.0MB in the end (delta: 18.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-13 12:52:22,979 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.90ms. Allocated memory is still 130.0MB. Free memory was 73.0MB in the beginning and 69.5MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 12:52:22,979 INFO L158 Benchmark]: Boogie Preprocessor took 34.76ms. Allocated memory is still 130.0MB. Free memory was 69.5MB in the beginning and 102.9MB in the end (delta: -33.5MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. [2022-12-13 12:52:22,979 INFO L158 Benchmark]: RCFGBuilder took 467.35ms. Allocated memory is still 130.0MB. Free memory was 102.9MB in the beginning and 77.9MB in the end (delta: 25.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-12-13 12:52:22,980 INFO L158 Benchmark]: BuchiAutomizer took 1627.00ms. Allocated memory was 130.0MB in the beginning and 157.3MB in the end (delta: 27.3MB). Free memory was 77.9MB in the beginning and 103.0MB in the end (delta: -25.1MB). Peak memory consumption was 741.1kB. Max. memory is 16.1GB. [2022-12-13 12:52:22,980 INFO L158 Benchmark]: Witness Printer took 35.63ms. Allocated memory is still 157.3MB. Free memory was 103.0MB in the beginning and 100.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 12:52:22,982 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 100.7MB. Free memory was 73.4MB in the beginning and 73.4MB in the end (delta: 31.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 272.92ms. Allocated memory is still 130.0MB. Free memory was 91.5MB in the beginning and 73.0MB in the end (delta: 18.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.90ms. Allocated memory is still 130.0MB. Free memory was 73.0MB in the beginning and 69.5MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.76ms. Allocated memory is still 130.0MB. Free memory was 69.5MB in the beginning and 102.9MB in the end (delta: -33.5MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. * RCFGBuilder took 467.35ms. Allocated memory is still 130.0MB. Free memory was 102.9MB in the beginning and 77.9MB in the end (delta: 25.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 1627.00ms. Allocated memory was 130.0MB in the beginning and 157.3MB in the end (delta: 27.3MB). Free memory was 77.9MB in the beginning and 103.0MB in the end (delta: -25.1MB). Peak memory consumption was 741.1kB. Max. memory is 16.1GB. * Witness Printer took 35.63ms. Allocated memory is still 157.3MB. Free memory was 103.0MB in the beginning and 100.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.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 236 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.5s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 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, 1088 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1088 mSDsluCounter, 554 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 106 mSDsCounter, 28 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 38 IncrementalHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 28 mSolverCounterUnsat, 448 mSDtfsCounter, 38 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: 536]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L67] int waterLevel = 1; [L68] int methaneLevelCritical = 0; [L170] int cleanupTimeShifts = 4; [L276] int pumpRunning = 0; [L277] int systemActive = 1; [L797] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L249] int retValue_acc ; [L250] int tmp ; [L254] FCALL select_helpers() [L255] FCALL select_features() [L256] CALL, EXPR valid_product() [L619] int retValue_acc ; [L622] retValue_acc = 1 [L623] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L256] RET, EXPR valid_product() [L256] tmp = valid_product() [L258] COND TRUE \read(tmp) [L260] FCALL setup() [L261] CALL runTest() [L240] CALL test() [L527] int splverifierCounter ; [L528] int tmp ; [L529] int tmp___0 ; [L530] int tmp___1 ; [L531] int tmp___2 ; [L534] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L536] COND TRUE 1 [L538] COND TRUE splverifierCounter < 4 [L544] tmp = __VERIFIER_nondet_int() [L546] COND FALSE !(\read(tmp)) [L554] tmp___0 = __VERIFIER_nondet_int() [L556] COND FALSE !(\read(tmp___0)) [L564] tmp___2 = __VERIFIER_nondet_int() [L566] COND FALSE !(\read(tmp___2)) [L572] tmp___1 = __VERIFIER_nondet_int() [L574] COND TRUE \read(tmp___1) [L581] CALL timeShift() [L284] COND FALSE !(\read(pumpRunning)) [L291] COND TRUE \read(systemActive) [L293] CALL processEnvironment() [L339] int tmp ; [L342] COND FALSE !(\read(pumpRunning)) [L357] CALL processEnvironment__wrappee__highWaterSensor() [L313] int tmp ; [L316] COND TRUE ! pumpRunning [L318] CALL, EXPR isHighWaterLevel() [L454] int retValue_acc ; [L455] int tmp ; [L456] int tmp___0 ; [L460] CALL, EXPR isHighWaterSensorDry() [L147] int retValue_acc ; [L150] COND TRUE waterLevel < 2 [L151] retValue_acc = 1 [L152] return (retValue_acc); [L460] RET, EXPR isHighWaterSensorDry() [L460] tmp = isHighWaterSensorDry() [L462] COND TRUE \read(tmp) [L463] tmp___0 = 0 [L467] retValue_acc = tmp___0 [L468] return (retValue_acc); [L318] RET, EXPR isHighWaterLevel() [L318] tmp = isHighWaterLevel() [L320] COND FALSE !(\read(tmp)) [L326] FCALL processEnvironment__wrappee__base() [L357] RET processEnvironment__wrappee__highWaterSensor() [L293] RET processEnvironment() [L299] CALL __utac_acc__Specification1_spec__1() [L501] int tmp ; [L502] int tmp___0 ; [L506] CALL, EXPR isMethaneLevelCritical() [L106] int retValue_acc ; [L109] retValue_acc = methaneLevelCritical [L110] return (retValue_acc); [L506] RET, EXPR isMethaneLevelCritical() [L506] tmp = isMethaneLevelCritical() [L508] COND FALSE !(\read(tmp)) [L299] RET __utac_acc__Specification1_spec__1() [L581] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 536]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L67] int waterLevel = 1; [L68] int methaneLevelCritical = 0; [L170] int cleanupTimeShifts = 4; [L276] int pumpRunning = 0; [L277] int systemActive = 1; [L797] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L249] int retValue_acc ; [L250] int tmp ; [L254] FCALL select_helpers() [L255] FCALL select_features() [L256] CALL, EXPR valid_product() [L619] int retValue_acc ; [L622] retValue_acc = 1 [L623] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L256] RET, EXPR valid_product() [L256] tmp = valid_product() [L258] COND TRUE \read(tmp) [L260] FCALL setup() [L261] CALL runTest() [L240] CALL test() [L527] int splverifierCounter ; [L528] int tmp ; [L529] int tmp___0 ; [L530] int tmp___1 ; [L531] int tmp___2 ; [L534] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L536] COND TRUE 1 [L538] COND TRUE splverifierCounter < 4 [L544] tmp = __VERIFIER_nondet_int() [L546] COND FALSE !(\read(tmp)) [L554] tmp___0 = __VERIFIER_nondet_int() [L556] COND FALSE !(\read(tmp___0)) [L564] tmp___2 = __VERIFIER_nondet_int() [L566] COND FALSE !(\read(tmp___2)) [L572] tmp___1 = __VERIFIER_nondet_int() [L574] COND TRUE \read(tmp___1) [L581] CALL timeShift() [L284] COND FALSE !(\read(pumpRunning)) [L291] COND TRUE \read(systemActive) [L293] CALL processEnvironment() [L339] int tmp ; [L342] COND FALSE !(\read(pumpRunning)) [L357] CALL processEnvironment__wrappee__highWaterSensor() [L313] int tmp ; [L316] COND TRUE ! pumpRunning [L318] CALL, EXPR isHighWaterLevel() [L454] int retValue_acc ; [L455] int tmp ; [L456] int tmp___0 ; [L460] CALL, EXPR isHighWaterSensorDry() [L147] int retValue_acc ; [L150] COND TRUE waterLevel < 2 [L151] retValue_acc = 1 [L152] return (retValue_acc); [L460] RET, EXPR isHighWaterSensorDry() [L460] tmp = isHighWaterSensorDry() [L462] COND TRUE \read(tmp) [L463] tmp___0 = 0 [L467] retValue_acc = tmp___0 [L468] return (retValue_acc); [L318] RET, EXPR isHighWaterLevel() [L318] tmp = isHighWaterLevel() [L320] COND FALSE !(\read(tmp)) [L326] FCALL processEnvironment__wrappee__base() [L357] RET processEnvironment__wrappee__highWaterSensor() [L293] RET processEnvironment() [L299] CALL __utac_acc__Specification1_spec__1() [L501] int tmp ; [L502] int tmp___0 ; [L506] CALL, EXPR isMethaneLevelCritical() [L106] int retValue_acc ; [L109] retValue_acc = methaneLevelCritical [L110] return (retValue_acc); [L506] RET, EXPR isMethaneLevelCritical() [L506] tmp = isMethaneLevelCritical() [L508] COND FALSE !(\read(tmp)) [L299] RET __utac_acc__Specification1_spec__1() [L581] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-12-13 12:52:23,005 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88f8d2eb-85bb-47f2-bae1-06b97997764b/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)