./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product51.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1afb108-ccd1-45f8-ae09-1081a7d7abee/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1afb108-ccd1-45f8-ae09-1081a7d7abee/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1afb108-ccd1-45f8-ae09-1081a7d7abee/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1afb108-ccd1-45f8-ae09-1081a7d7abee/bin/uautomizer-TMbwUNV5ro/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product51.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1afb108-ccd1-45f8-ae09-1081a7d7abee/bin/uautomizer-TMbwUNV5ro/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1afb108-ccd1-45f8-ae09-1081a7d7abee/bin/uautomizer-TMbwUNV5ro --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 242c9b24ea8c293cca4af0028144a97f9048375edcd4379fb21e62564563d3d5 --- 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-8393723 [2022-11-18 19:56:14,185 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:56:14,187 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:56:14,217 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:56:14,224 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:56:14,225 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:56:14,228 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:56:14,234 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:56:14,235 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:56:14,241 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:56:14,242 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:56:14,243 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:56:14,245 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:56:14,247 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:56:14,250 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:56:14,252 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:56:14,255 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:56:14,256 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:56:14,258 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:56:14,266 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:56:14,268 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:56:14,273 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:56:14,275 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:56:14,276 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:56:14,279 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:56:14,283 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:56:14,283 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:56:14,284 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:56:14,286 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:56:14,287 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:56:14,288 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:56:14,289 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:56:14,291 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:56:14,292 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:56:14,294 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:56:14,295 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:56:14,296 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:56:14,296 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:56:14,297 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:56:14,298 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:56:14,299 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:56:14,300 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1afb108-ccd1-45f8-ae09-1081a7d7abee/bin/uautomizer-TMbwUNV5ro/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-11-18 19:56:14,345 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:56:14,345 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:56:14,346 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:56:14,346 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:56:14,348 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:56:14,348 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:56:14,348 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:56:14,349 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-18 19:56:14,349 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-18 19:56:14,349 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-18 19:56:14,350 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-18 19:56:14,351 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-18 19:56:14,351 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-18 19:56:14,351 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:56:14,351 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 19:56:14,352 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 19:56:14,352 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 19:56:14,352 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 19:56:14,352 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:56:14,353 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-18 19:56:14,353 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-18 19:56:14,353 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-18 19:56:14,353 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 19:56:14,355 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 19:56:14,355 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-18 19:56:14,356 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:56:14,356 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-18 19:56:14,356 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:56:14,356 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:56:14,357 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:56:14,357 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 19:56:14,358 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-18 19:56:14,358 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_e1afb108-ccd1-45f8-ae09-1081a7d7abee/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1afb108-ccd1-45f8-ae09-1081a7d7abee/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 242c9b24ea8c293cca4af0028144a97f9048375edcd4379fb21e62564563d3d5 [2022-11-18 19:56:14,616 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:56:14,667 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:56:14,671 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:56:14,672 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:56:14,673 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:56:14,674 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1afb108-ccd1-45f8-ae09-1081a7d7abee/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/product-lines/minepump_spec2_product51.cil.c [2022-11-18 19:56:14,752 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1afb108-ccd1-45f8-ae09-1081a7d7abee/bin/uautomizer-TMbwUNV5ro/data/213daa888/724c244e489c4c5ea01e500dc965cc03/FLAGe8954d812 [2022-11-18 19:56:15,330 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:56:15,331 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1afb108-ccd1-45f8-ae09-1081a7d7abee/sv-benchmarks/c/product-lines/minepump_spec2_product51.cil.c [2022-11-18 19:56:15,343 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1afb108-ccd1-45f8-ae09-1081a7d7abee/bin/uautomizer-TMbwUNV5ro/data/213daa888/724c244e489c4c5ea01e500dc965cc03/FLAGe8954d812 [2022-11-18 19:56:15,601 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1afb108-ccd1-45f8-ae09-1081a7d7abee/bin/uautomizer-TMbwUNV5ro/data/213daa888/724c244e489c4c5ea01e500dc965cc03 [2022-11-18 19:56:15,604 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:56:15,605 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:56:15,609 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:56:15,609 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:56:15,613 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:56:15,613 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:56:15" (1/1) ... [2022-11-18 19:56:15,616 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77b399de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:56:15, skipping insertion in model container [2022-11-18 19:56:15,616 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:56:15" (1/1) ... [2022-11-18 19:56:15,625 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:56:15,699 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:56:16,057 WARN L234 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_e1afb108-ccd1-45f8-ae09-1081a7d7abee/sv-benchmarks/c/product-lines/minepump_spec2_product51.cil.c[9329,9342] [2022-11-18 19:56:16,127 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:56:16,140 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 19:56:16,179 WARN L234 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_e1afb108-ccd1-45f8-ae09-1081a7d7abee/sv-benchmarks/c/product-lines/minepump_spec2_product51.cil.c[9329,9342] [2022-11-18 19:56:16,212 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:56:16,232 INFO L208 MainTranslator]: Completed translation [2022-11-18 19:56:16,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:56:16 WrapperNode [2022-11-18 19:56:16,233 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:56:16,234 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 19:56:16,234 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 19:56:16,234 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 19:56:16,243 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:56:16" (1/1) ... [2022-11-18 19:56:16,269 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:56:16" (1/1) ... [2022-11-18 19:56:16,325 INFO L138 Inliner]: procedures = 57, calls = 101, calls flagged for inlining = 54, calls inlined = 80, statements flattened = 566 [2022-11-18 19:56:16,330 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 19:56:16,331 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 19:56:16,331 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 19:56:16,332 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 19:56:16,342 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:56:16" (1/1) ... [2022-11-18 19:56:16,342 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:56:16" (1/1) ... [2022-11-18 19:56:16,359 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:56:16" (1/1) ... [2022-11-18 19:56:16,366 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:56:16" (1/1) ... [2022-11-18 19:56:16,373 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:56:16" (1/1) ... [2022-11-18 19:56:16,394 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:56:16" (1/1) ... [2022-11-18 19:56:16,396 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:56:16" (1/1) ... [2022-11-18 19:56:16,398 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:56:16" (1/1) ... [2022-11-18 19:56:16,401 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 19:56:16,402 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 19:56:16,406 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 19:56:16,407 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 19:56:16,408 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:56:16" (1/1) ... [2022-11-18 19:56:16,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:56:16,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1afb108-ccd1-45f8-ae09-1081a7d7abee/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:56:16,455 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1afb108-ccd1-45f8-ae09-1081a7d7abee/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:56:16,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1afb108-ccd1-45f8-ae09-1081a7d7abee/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-18 19:56:16,510 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 19:56:16,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 19:56:16,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 19:56:16,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 19:56:16,594 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 19:56:16,597 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 19:56:17,094 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 19:56:17,103 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 19:56:17,107 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-18 19:56:17,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:56:17 BoogieIcfgContainer [2022-11-18 19:56:17,110 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 19:56:17,111 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-18 19:56:17,125 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-18 19:56:17,130 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-18 19:56:17,130 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 19:56:17,131 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 07:56:15" (1/3) ... [2022-11-18 19:56:17,132 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6fc6e633 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 07:56:17, skipping insertion in model container [2022-11-18 19:56:17,132 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 19:56:17,132 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:56:16" (2/3) ... [2022-11-18 19:56:17,132 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6fc6e633 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 07:56:17, skipping insertion in model container [2022-11-18 19:56:17,132 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 19:56:17,133 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:56:17" (3/3) ... [2022-11-18 19:56:17,134 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product51.cil.c [2022-11-18 19:56:17,266 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-18 19:56:17,267 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-18 19:56:17,267 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-18 19:56:17,267 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-18 19:56:17,267 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-18 19:56:17,267 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-18 19:56:17,267 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-18 19:56:17,268 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-18 19:56:17,272 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 170 states, 169 states have (on average 1.3846153846153846) internal successors, (234), 169 states have internal predecessors, (234), 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) [2022-11-18 19:56:17,302 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 110 [2022-11-18 19:56:17,303 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 19:56:17,303 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 19:56:17,311 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:56:17,311 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:56:17,311 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-18 19:56:17,312 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 170 states, 169 states have (on average 1.3846153846153846) internal successors, (234), 169 states have internal predecessors, (234), 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) [2022-11-18 19:56:17,322 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 110 [2022-11-18 19:56:17,323 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 19:56:17,323 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 19:56:17,324 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:56:17,324 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:56:17,331 INFO L748 eck$LassoCheckResult]: Stem: 157#ULTIMATE.startENTRYtrue 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);~head~0.base, ~head~0.offset := 0, 0;~methAndRunningLastTime~0 := 0;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~waterLevel~0 := 1;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 56#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret29#1, main_~retValue_acc~10#1, main_~tmp~6#1;havoc main_~retValue_acc~10#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 161#L409true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 113#L402true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 55#L417true main_#t~ret29#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret29#1;havoc main_#t~ret29#1; 99#L609true assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 98#L585true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 87#L351true assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 51#L65-2true [2022-11-18 19:56:17,332 INFO L750 eck$LassoCheckResult]: Loop: 51#L65-2true assume !false; 45#L66true assume test_~splverifierCounter~0#1 < 4; 156#L67true test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 81#L75true assume !(0 != test_~tmp~0#1); 154#L75-2true test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 47#L85true assume !(0 != test_~tmp___0~0#1); 7#L85-2true test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 117#L95true assume 0 != test_~tmp___2~0#1; 110#L101-2true assume { :begin_inline_timeShift } true; 42#L139true assume !(0 != ~pumpRunning~0); 27#L139-2true assume !(0 != ~systemActive~0); 30#L146-1true assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret21#1, __utac_acc__Specification2_spec__2_#t~ret22#1, __utac_acc__Specification2_spec__2_~tmp~5#1, __utac_acc__Specification2_spec__2_~tmp___0~3#1;havoc __utac_acc__Specification2_spec__2_~tmp~5#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 167#L466true __utac_acc__Specification2_spec__2_#t~ret21#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~5#1 := __utac_acc__Specification2_spec__2_#t~ret21#1;havoc __utac_acc__Specification2_spec__2_#t~ret21#1; 164#L362true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~5#1);~methAndRunningLastTime~0 := 0; 36#L362-1true assume { :end_inline___utac_acc__Specification2_spec__2 } true; 165#L156true assume { :end_inline_timeShift } true; 51#L65-2true [2022-11-18 19:56:17,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:56:17,338 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2022-11-18 19:56:17,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:56:17,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472453089] [2022-11-18 19:56:17,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:56:17,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:56:17,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:56:17,461 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:56:17,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:56:17,499 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:56:17,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:56:17,503 INFO L85 PathProgramCache]: Analyzing trace with hash -1250870358, now seen corresponding path program 1 times [2022-11-18 19:56:17,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:56:17,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650007263] [2022-11-18 19:56:17,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:56:17,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:56:17,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:56:17,515 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:56:17,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:56:17,526 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:56:17,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:56:17,529 INFO L85 PathProgramCache]: Analyzing trace with hash -1413157741, now seen corresponding path program 1 times [2022-11-18 19:56:17,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:56:17,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394884187] [2022-11-18 19:56:17,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:56:17,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:56:17,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:56:17,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:56:17,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:56:17,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394884187] [2022-11-18 19:56:17,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394884187] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:56:17,893 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:56:17,894 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:56:17,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415584654] [2022-11-18 19:56:17,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:56:18,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:56:18,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:56:18,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:56:18,109 INFO L87 Difference]: Start difference. First operand has 170 states, 169 states have (on average 1.3846153846153846) internal successors, (234), 169 states have internal predecessors, (234), 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) [2022-11-18 19:56:18,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:56:18,305 INFO L93 Difference]: Finished difference Result 393 states and 522 transitions. [2022-11-18 19:56:18,307 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 393 states and 522 transitions. [2022-11-18 19:56:18,339 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 253 [2022-11-18 19:56:18,349 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 393 states to 363 states and 492 transitions. [2022-11-18 19:56:18,354 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 363 [2022-11-18 19:56:18,358 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 363 [2022-11-18 19:56:18,359 INFO L73 IsDeterministic]: Start isDeterministic. Operand 363 states and 492 transitions. [2022-11-18 19:56:18,365 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:56:18,366 INFO L218 hiAutomatonCegarLoop]: Abstraction has 363 states and 492 transitions. [2022-11-18 19:56:18,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states and 492 transitions. [2022-11-18 19:56:18,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 212. [2022-11-18 19:56:18,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 212 states have (on average 1.3537735849056605) internal successors, (287), 211 states have internal predecessors, (287), 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) [2022-11-18 19:56:18,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 287 transitions. [2022-11-18 19:56:18,435 INFO L240 hiAutomatonCegarLoop]: Abstraction has 212 states and 287 transitions. [2022-11-18 19:56:18,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:56:18,446 INFO L428 stractBuchiCegarLoop]: Abstraction has 212 states and 287 transitions. [2022-11-18 19:56:18,447 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-18 19:56:18,447 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 212 states and 287 transitions. [2022-11-18 19:56:18,455 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 148 [2022-11-18 19:56:18,456 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 19:56:18,456 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 19:56:18,458 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:56:18,458 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] [2022-11-18 19:56:18,459 INFO L748 eck$LassoCheckResult]: Stem: 735#ULTIMATE.startENTRY 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);~head~0.base, ~head~0.offset := 0, 0;~methAndRunningLastTime~0 := 0;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~waterLevel~0 := 1;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 669#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret29#1, main_~retValue_acc~10#1, main_~tmp~6#1;havoc main_~retValue_acc~10#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 670#L409 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 718#L402 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 667#L417 main_#t~ret29#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret29#1;havoc main_#t~ret29#1; 668#L609 assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 703#L585 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 692#L351 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 666#L65-2 [2022-11-18 19:56:18,459 INFO L750 eck$LassoCheckResult]: Loop: 666#L65-2 assume !false; 652#L66 assume test_~splverifierCounter~0#1 < 4; 653#L67 test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 686#L75 assume !(0 != test_~tmp~0#1); 687#L75-2 test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 656#L85 assume !(0 != test_~tmp___0~0#1); 589#L85-2 test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 590#L95 assume 0 != test_~tmp___2~0#1; 716#L101-2 assume { :begin_inline_timeShift } true; 647#L139 assume !(0 != ~pumpRunning~0); 624#L139-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret9#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 625#L197 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 698#L171-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 707#L163-3 assume { :end_inline_processEnvironment__wrappee__base } true; 596#L171-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 610#L197-1 assume { :end_inline_processEnvironment } true; 611#L146-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret21#1, __utac_acc__Specification2_spec__2_#t~ret22#1, __utac_acc__Specification2_spec__2_~tmp~5#1, __utac_acc__Specification2_spec__2_~tmp___0~3#1;havoc __utac_acc__Specification2_spec__2_~tmp~5#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 629#L466 __utac_acc__Specification2_spec__2_#t~ret21#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~5#1 := __utac_acc__Specification2_spec__2_#t~ret21#1;havoc __utac_acc__Specification2_spec__2_#t~ret21#1; 737#L362 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~5#1);~methAndRunningLastTime~0 := 0; 617#L362-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 640#L156 assume { :end_inline_timeShift } true; 666#L65-2 [2022-11-18 19:56:18,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:56:18,461 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2022-11-18 19:56:18,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:56:18,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180246546] [2022-11-18 19:56:18,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:56:18,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:56:18,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:56:18,499 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:56:18,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:56:18,515 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:56:18,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:56:18,517 INFO L85 PathProgramCache]: Analyzing trace with hash 1497844822, now seen corresponding path program 1 times [2022-11-18 19:56:18,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:56:18,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196449633] [2022-11-18 19:56:18,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:56:18,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:56:18,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:56:18,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:56:18,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:56:18,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196449633] [2022-11-18 19:56:18,543 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196449633] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:56:18,543 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:56:18,544 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:56:18,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062397218] [2022-11-18 19:56:18,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:56:18,545 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-18 19:56:18,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:56:18,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:56:18,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:56:18,546 INFO L87 Difference]: Start difference. First operand 212 states and 287 transitions. cyclomatic complexity: 78 Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2022-11-18 19:56:18,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:56:18,620 INFO L93 Difference]: Finished difference Result 265 states and 344 transitions. [2022-11-18 19:56:18,620 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 265 states and 344 transitions. [2022-11-18 19:56:18,622 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 189 [2022-11-18 19:56:18,624 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 265 states to 265 states and 344 transitions. [2022-11-18 19:56:18,624 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 265 [2022-11-18 19:56:18,625 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 265 [2022-11-18 19:56:18,625 INFO L73 IsDeterministic]: Start isDeterministic. Operand 265 states and 344 transitions. [2022-11-18 19:56:18,626 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:56:18,626 INFO L218 hiAutomatonCegarLoop]: Abstraction has 265 states and 344 transitions. [2022-11-18 19:56:18,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states and 344 transitions. [2022-11-18 19:56:18,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 265. [2022-11-18 19:56:18,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 265 states have (on average 1.2981132075471697) internal successors, (344), 264 states have internal predecessors, (344), 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) [2022-11-18 19:56:18,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 344 transitions. [2022-11-18 19:56:18,640 INFO L240 hiAutomatonCegarLoop]: Abstraction has 265 states and 344 transitions. [2022-11-18 19:56:18,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:56:18,641 INFO L428 stractBuchiCegarLoop]: Abstraction has 265 states and 344 transitions. [2022-11-18 19:56:18,641 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-18 19:56:18,642 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 265 states and 344 transitions. [2022-11-18 19:56:18,643 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 189 [2022-11-18 19:56:18,644 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 19:56:18,644 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 19:56:18,645 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:56:18,646 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] [2022-11-18 19:56:18,647 INFO L748 eck$LassoCheckResult]: Stem: 1232#ULTIMATE.startENTRY 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);~head~0.base, ~head~0.offset := 0, 0;~methAndRunningLastTime~0 := 0;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~waterLevel~0 := 1;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 1155#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret29#1, main_~retValue_acc~10#1, main_~tmp~6#1;havoc main_~retValue_acc~10#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 1156#L409 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1209#L402 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 1153#L417 main_#t~ret29#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret29#1;havoc main_#t~ret29#1; 1154#L609 assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 1193#L585 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 1182#L351 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1148#L65-2 [2022-11-18 19:56:18,647 INFO L750 eck$LassoCheckResult]: Loop: 1148#L65-2 assume !false; 1137#L66 assume test_~splverifierCounter~0#1 < 4; 1138#L67 test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 1308#L75 assume !(0 != test_~tmp~0#1); 1306#L75-2 test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 1142#L85 assume !(0 != test_~tmp___0~0#1); 1093#L85-2 test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 1304#L95 assume 0 != test_~tmp___2~0#1; 1204#L101-2 assume { :begin_inline_timeShift } true; 1205#L139 assume !(0 != ~pumpRunning~0); 1108#L139-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret9#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 1109#L197 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 1188#L171-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret19#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~3#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~3#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 1186#L506-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 1180#L511-1 isHighWaterLevel_#t~ret19#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~3#1 := isHighWaterLevel_#t~ret19#1;havoc isHighWaterLevel_#t~ret19#1; 1181#L299-3 assume !(0 != isHighWaterLevel_~tmp~3#1);isHighWaterLevel_~tmp___0~1#1 := 1; 1131#L299-5 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 1121#L305-1 processEnvironment__wrappee__highWaterSensor_#t~ret8#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret8#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1; 1122#L175-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1162#L163-2 assume { :end_inline_processEnvironment__wrappee__base } true; 1163#L171-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1094#L197-1 assume { :end_inline_processEnvironment } true; 1095#L146-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret21#1, __utac_acc__Specification2_spec__2_#t~ret22#1, __utac_acc__Specification2_spec__2_~tmp~5#1, __utac_acc__Specification2_spec__2_~tmp___0~3#1;havoc __utac_acc__Specification2_spec__2_~tmp~5#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 1303#L466 __utac_acc__Specification2_spec__2_#t~ret21#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~5#1 := __utac_acc__Specification2_spec__2_#t~ret21#1;havoc __utac_acc__Specification2_spec__2_#t~ret21#1; 1301#L362 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~5#1);~methAndRunningLastTime~0 := 0; 1298#L362-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 1297#L156 assume { :end_inline_timeShift } true; 1148#L65-2 [2022-11-18 19:56:18,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:56:18,648 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2022-11-18 19:56:18,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:56:18,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50371898] [2022-11-18 19:56:18,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:56:18,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:56:18,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:56:18,666 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:56:18,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:56:18,692 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:56:18,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:56:18,698 INFO L85 PathProgramCache]: Analyzing trace with hash -1757303124, now seen corresponding path program 1 times [2022-11-18 19:56:18,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:56:18,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8003253] [2022-11-18 19:56:18,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:56:18,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:56:18,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:56:18,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:56:18,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:56:18,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8003253] [2022-11-18 19:56:18,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8003253] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:56:18,773 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:56:18,774 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 19:56:18,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796637352] [2022-11-18 19:56:18,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:56:18,775 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-18 19:56:18,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:56:18,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:56:18,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:56:18,776 INFO L87 Difference]: Start difference. First operand 265 states and 344 transitions. cyclomatic complexity: 82 Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 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) [2022-11-18 19:56:18,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:56:18,882 INFO L93 Difference]: Finished difference Result 516 states and 662 transitions. [2022-11-18 19:56:18,882 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 516 states and 662 transitions. [2022-11-18 19:56:18,886 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 374 [2022-11-18 19:56:18,891 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 516 states to 516 states and 662 transitions. [2022-11-18 19:56:18,891 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 516 [2022-11-18 19:56:18,892 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 516 [2022-11-18 19:56:18,892 INFO L73 IsDeterministic]: Start isDeterministic. Operand 516 states and 662 transitions. [2022-11-18 19:56:18,895 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:56:18,895 INFO L218 hiAutomatonCegarLoop]: Abstraction has 516 states and 662 transitions. [2022-11-18 19:56:18,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states and 662 transitions. [2022-11-18 19:56:18,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 277. [2022-11-18 19:56:18,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 277 states have (on average 1.2851985559566788) internal successors, (356), 276 states have internal predecessors, (356), 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) [2022-11-18 19:56:18,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 356 transitions. [2022-11-18 19:56:18,921 INFO L240 hiAutomatonCegarLoop]: Abstraction has 277 states and 356 transitions. [2022-11-18 19:56:18,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 19:56:18,922 INFO L428 stractBuchiCegarLoop]: Abstraction has 277 states and 356 transitions. [2022-11-18 19:56:18,923 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-18 19:56:18,923 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 277 states and 356 transitions. [2022-11-18 19:56:18,924 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 197 [2022-11-18 19:56:18,925 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 19:56:18,925 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 19:56:18,926 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:56:18,926 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] [2022-11-18 19:56:18,927 INFO L748 eck$LassoCheckResult]: Stem: 2030#ULTIMATE.startENTRY 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);~head~0.base, ~head~0.offset := 0, 0;~methAndRunningLastTime~0 := 0;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~waterLevel~0 := 1;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 1947#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret29#1, main_~retValue_acc~10#1, main_~tmp~6#1;havoc main_~retValue_acc~10#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 1948#L409 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2001#L402 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 1945#L417 main_#t~ret29#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret29#1;havoc main_#t~ret29#1; 1946#L609 assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 1986#L585 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 1974#L351 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1975#L65-2 [2022-11-18 19:56:18,928 INFO L750 eck$LassoCheckResult]: Loop: 1975#L65-2 assume !false; 2096#L66 assume test_~splverifierCounter~0#1 < 4; 2097#L67 test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 2131#L75 assume !(0 != test_~tmp~0#1); 2130#L75-2 test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 2128#L85 assume !(0 != test_~tmp___0~0#1); 2126#L85-2 test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 2124#L95 assume 0 != test_~tmp___2~0#1; 1997#L101-2 assume { :begin_inline_timeShift } true; 1924#L139 assume !(0 != ~pumpRunning~0); 1899#L139-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret9#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 1900#L197 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 1982#L171-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret19#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~3#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~3#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 1979#L506-1 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~8#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 1972#L511-1 isHighWaterLevel_#t~ret19#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~3#1 := isHighWaterLevel_#t~ret19#1;havoc isHighWaterLevel_#t~ret19#1; 1973#L299-3 assume !(0 != isHighWaterLevel_~tmp~3#1);isHighWaterLevel_~tmp___0~1#1 := 1; 1923#L299-5 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 1912#L305-1 processEnvironment__wrappee__highWaterSensor_#t~ret8#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret8#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1; 1913#L175-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1953#L163-2 assume { :end_inline_processEnvironment__wrappee__base } true; 1954#L171-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1884#L197-1 assume { :end_inline_processEnvironment } true; 1885#L146-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret21#1, __utac_acc__Specification2_spec__2_#t~ret22#1, __utac_acc__Specification2_spec__2_~tmp~5#1, __utac_acc__Specification2_spec__2_~tmp___0~3#1;havoc __utac_acc__Specification2_spec__2_~tmp~5#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 2104#L466 __utac_acc__Specification2_spec__2_#t~ret21#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~5#1 := __utac_acc__Specification2_spec__2_#t~ret21#1;havoc __utac_acc__Specification2_spec__2_#t~ret21#1; 2102#L362 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~5#1);~methAndRunningLastTime~0 := 0; 2099#L362-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 2098#L156 assume { :end_inline_timeShift } true; 1975#L65-2 [2022-11-18 19:56:18,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:56:18,929 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2022-11-18 19:56:18,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:56:18,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335552798] [2022-11-18 19:56:18,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:56:18,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:56:18,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:56:18,952 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:56:18,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:56:18,969 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:56:18,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:56:18,970 INFO L85 PathProgramCache]: Analyzing trace with hash 1526546922, now seen corresponding path program 1 times [2022-11-18 19:56:18,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:56:18,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540433905] [2022-11-18 19:56:18,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:56:18,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:56:18,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:56:19,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:56:19,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:56:19,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540433905] [2022-11-18 19:56:19,065 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540433905] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:56:19,069 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:56:19,069 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:56:19,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594487388] [2022-11-18 19:56:19,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:56:19,070 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-18 19:56:19,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:56:19,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 19:56:19,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:56:19,074 INFO L87 Difference]: Start difference. First operand 277 states and 356 transitions. cyclomatic complexity: 82 Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 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) [2022-11-18 19:56:19,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:56:19,242 INFO L93 Difference]: Finished difference Result 886 states and 1142 transitions. [2022-11-18 19:56:19,242 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 886 states and 1142 transitions. [2022-11-18 19:56:19,250 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 656 [2022-11-18 19:56:19,256 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 886 states to 886 states and 1142 transitions. [2022-11-18 19:56:19,256 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 886 [2022-11-18 19:56:19,257 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 886 [2022-11-18 19:56:19,257 INFO L73 IsDeterministic]: Start isDeterministic. Operand 886 states and 1142 transitions. [2022-11-18 19:56:19,258 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:56:19,259 INFO L218 hiAutomatonCegarLoop]: Abstraction has 886 states and 1142 transitions. [2022-11-18 19:56:19,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 886 states and 1142 transitions. [2022-11-18 19:56:19,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 886 to 295. [2022-11-18 19:56:19,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 295 states have (on average 1.2677966101694915) internal successors, (374), 294 states have internal predecessors, (374), 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) [2022-11-18 19:56:19,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 374 transitions. [2022-11-18 19:56:19,271 INFO L240 hiAutomatonCegarLoop]: Abstraction has 295 states and 374 transitions. [2022-11-18 19:56:19,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:56:19,272 INFO L428 stractBuchiCegarLoop]: Abstraction has 295 states and 374 transitions. [2022-11-18 19:56:19,273 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-11-18 19:56:19,274 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 295 states and 374 transitions. [2022-11-18 19:56:19,275 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 209 [2022-11-18 19:56:19,276 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 19:56:19,276 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 19:56:19,277 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:56:19,277 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] [2022-11-18 19:56:19,277 INFO L748 eck$LassoCheckResult]: Stem: 3215#ULTIMATE.startENTRY 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);~head~0.base, ~head~0.offset := 0, 0;~methAndRunningLastTime~0 := 0;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~waterLevel~0 := 1;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 3122#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret29#1, main_~retValue_acc~10#1, main_~tmp~6#1;havoc main_~retValue_acc~10#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 3123#L409 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 3181#L402 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 3120#L417 main_#t~ret29#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret29#1;havoc main_#t~ret29#1; 3121#L609 assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 3163#L585 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 3149#L351 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 3113#L65-2 [2022-11-18 19:56:19,277 INFO L750 eck$LassoCheckResult]: Loop: 3113#L65-2 assume !false; 3114#L66 assume test_~splverifierCounter~0#1 < 4; 3214#L67 test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 3142#L75 assume !(0 != test_~tmp~0#1); 3143#L75-2 test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 3106#L85 assume !(0 != test_~tmp___0~0#1); 3040#L85-2 test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 3041#L95 assume 0 != test_~tmp___2~0#1; 3184#L101-2 assume { :begin_inline_timeShift } true; 3098#L139 assume !(0 != ~pumpRunning~0); 3074#L139-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret9#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 3075#L197 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 3157#L171-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret19#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~3#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~3#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 3154#L506-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 3155#L511-1 isHighWaterLevel_#t~ret19#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~3#1 := isHighWaterLevel_#t~ret19#1;havoc isHighWaterLevel_#t~ret19#1; 3195#L299-3 assume 0 != isHighWaterLevel_~tmp~3#1;isHighWaterLevel_~tmp___0~1#1 := 0; 3196#L299-5 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 3233#L305-1 processEnvironment__wrappee__highWaterSensor_#t~ret8#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret8#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1; 3232#L175-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 3126#L163-2 assume { :end_inline_processEnvironment__wrappee__base } true; 3127#L171-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 3059#L197-1 assume { :end_inline_processEnvironment } true; 3060#L146-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret21#1, __utac_acc__Specification2_spec__2_#t~ret22#1, __utac_acc__Specification2_spec__2_~tmp~5#1, __utac_acc__Specification2_spec__2_~tmp___0~3#1;havoc __utac_acc__Specification2_spec__2_~tmp~5#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 3296#L466 __utac_acc__Specification2_spec__2_#t~ret21#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~5#1 := __utac_acc__Specification2_spec__2_#t~ret21#1;havoc __utac_acc__Specification2_spec__2_#t~ret21#1; 3221#L362 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~5#1);~methAndRunningLastTime~0 := 0; 3067#L362-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 3091#L156 assume { :end_inline_timeShift } true; 3113#L65-2 [2022-11-18 19:56:19,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:56:19,278 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 5 times [2022-11-18 19:56:19,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:56:19,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368389228] [2022-11-18 19:56:19,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:56:19,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:56:19,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:56:19,295 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:56:19,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:56:19,315 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:56:19,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:56:19,318 INFO L85 PathProgramCache]: Analyzing trace with hash -2015468562, now seen corresponding path program 1 times [2022-11-18 19:56:19,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:56:19,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841887128] [2022-11-18 19:56:19,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:56:19,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:56:19,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:56:19,326 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:56:19,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:56:19,343 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:56:19,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:56:19,347 INFO L85 PathProgramCache]: Analyzing trace with hash -1844693147, now seen corresponding path program 1 times [2022-11-18 19:56:19,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:56:19,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045234526] [2022-11-18 19:56:19,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:56:19,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:56:19,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:56:19,361 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:56:19,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:56:19,386 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:56:20,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:56:20,708 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:56:20,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:56:20,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 07:56:20 BoogieIcfgContainer [2022-11-18 19:56:20,794 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-18 19:56:20,795 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 19:56:20,795 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 19:56:20,796 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 19:56:20,796 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:56:17" (3/4) ... [2022-11-18 19:56:20,803 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-11-18 19:56:20,880 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1afb108-ccd1-45f8-ae09-1081a7d7abee/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 19:56:20,880 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 19:56:20,881 INFO L158 Benchmark]: Toolchain (without parser) took 5275.43ms. Allocated memory was 125.8MB in the beginning and 178.3MB in the end (delta: 52.4MB). Free memory was 89.4MB in the beginning and 100.7MB in the end (delta: -11.3MB). Peak memory consumption was 40.2MB. Max. memory is 16.1GB. [2022-11-18 19:56:20,881 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 125.8MB. Free memory was 97.2MB in the beginning and 97.2MB in the end (delta: 32.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:56:20,882 INFO L158 Benchmark]: CACSL2BoogieTranslator took 624.31ms. Allocated memory is still 125.8MB. Free memory was 89.2MB in the beginning and 90.6MB in the end (delta: -1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 19:56:20,882 INFO L158 Benchmark]: Boogie Procedure Inliner took 96.37ms. Allocated memory is still 125.8MB. Free memory was 90.6MB in the beginning and 87.6MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:56:20,882 INFO L158 Benchmark]: Boogie Preprocessor took 70.65ms. Allocated memory is still 125.8MB. Free memory was 87.6MB in the beginning and 85.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:56:20,883 INFO L158 Benchmark]: RCFGBuilder took 707.91ms. Allocated memory is still 125.8MB. Free memory was 85.1MB in the beginning and 61.3MB in the end (delta: 23.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-18 19:56:20,883 INFO L158 Benchmark]: BuchiAutomizer took 3683.49ms. Allocated memory was 125.8MB in the beginning and 178.3MB in the end (delta: 52.4MB). Free memory was 61.3MB in the beginning and 102.8MB in the end (delta: -41.5MB). Peak memory consumption was 11.4MB. Max. memory is 16.1GB. [2022-11-18 19:56:20,883 INFO L158 Benchmark]: Witness Printer took 84.89ms. Allocated memory is still 178.3MB. Free memory was 102.8MB in the beginning and 100.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:56:20,885 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 125.8MB. Free memory was 97.2MB in the beginning and 97.2MB in the end (delta: 32.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 624.31ms. Allocated memory is still 125.8MB. Free memory was 89.2MB in the beginning and 90.6MB in the end (delta: -1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 96.37ms. Allocated memory is still 125.8MB. Free memory was 90.6MB in the beginning and 87.6MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 70.65ms. Allocated memory is still 125.8MB. Free memory was 87.6MB in the beginning and 85.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 707.91ms. Allocated memory is still 125.8MB. Free memory was 85.1MB in the beginning and 61.3MB in the end (delta: 23.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 3683.49ms. Allocated memory was 125.8MB in the beginning and 178.3MB in the end (delta: 52.4MB). Free memory was 61.3MB in the beginning and 102.8MB in the end (delta: -41.5MB). Peak memory consumption was 11.4MB. Max. memory is 16.1GB. * Witness Printer took 84.89ms. Allocated memory is still 178.3MB. Free memory was 102.8MB in the beginning and 100.7MB 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 4 terminating modules (4 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.4 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 295 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.5s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 2.5s. Construction of modules took 0.2s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 0. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 981 StatesRemovedByMinimization, 3 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, 2178 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2178 mSDsluCounter, 3237 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2134 mSDsCounter, 73 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 225 IncrementalHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 73 mSolverCounterUnsat, 1103 mSDtfsCounter, 225 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 65]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L801] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L345] int methAndRunningLastTime ; [L424] int methaneLevelCritical = 0; [L131] int pumpRunning = 0; [L423] int waterLevel = 1; [L132] int systemActive = 1; [L526] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L600] int retValue_acc ; [L601] int tmp ; [L605] FCALL select_helpers() [L606] FCALL select_features() [L607] CALL, EXPR valid_product() [L413] int retValue_acc ; [L416] retValue_acc = 1 [L417] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L607] RET, EXPR valid_product() [L607] tmp = valid_product() [L609] COND TRUE \read(tmp) [L611] FCALL setup() [L612] CALL runTest() [L593] CALL __utac_acc__Specification2_spec__1() [L350] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L593] RET __utac_acc__Specification2_spec__1() [L594] CALL test() [L56] int splverifierCounter ; [L57] int tmp ; [L58] int tmp___0 ; [L59] int tmp___1 ; [L60] int tmp___2 ; [L63] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L65] COND TRUE 1 [L67] COND TRUE splverifierCounter < 4 [L73] tmp = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp)) [L83] tmp___0 = __VERIFIER_nondet_int() [L85] COND FALSE !(\read(tmp___0)) [L93] tmp___2 = __VERIFIER_nondet_int() [L95] COND TRUE \read(tmp___2) [L110] CALL timeShift() [L139] COND FALSE !(\read(pumpRunning)) [L146] COND TRUE \read(systemActive) [L148] CALL processEnvironment() [L194] int tmp ; [L197] COND FALSE !(\read(pumpRunning)) [L212] CALL processEnvironment__wrappee__highWaterSensor() [L168] int tmp ; [L171] COND TRUE ! pumpRunning [L173] CALL, EXPR isHighWaterLevel() [L291] int retValue_acc ; [L292] int tmp ; [L293] int tmp___0 ; [L297] CALL, EXPR isHighWaterSensorDry() [L503] int retValue_acc ; [L506] COND TRUE waterLevel < 2 [L507] retValue_acc = 1 [L508] return (retValue_acc); [L297] RET, EXPR isHighWaterSensorDry() [L297] tmp = isHighWaterSensorDry() [L299] COND TRUE \read(tmp) [L300] tmp___0 = 0 [L304] retValue_acc = tmp___0 [L305] return (retValue_acc); [L173] RET, EXPR isHighWaterLevel() [L173] tmp = isHighWaterLevel() [L175] COND FALSE !(\read(tmp)) [L181] FCALL processEnvironment__wrappee__base() [L212] RET processEnvironment__wrappee__highWaterSensor() [L148] RET processEnvironment() [L154] CALL __utac_acc__Specification2_spec__2() [L355] int tmp ; [L356] int tmp___0 ; [L360] CALL, EXPR isMethaneLevelCritical() [L462] int retValue_acc ; [L465] retValue_acc = methaneLevelCritical [L466] return (retValue_acc); [L360] RET, EXPR isMethaneLevelCritical() [L360] tmp = isMethaneLevelCritical() [L362] COND FALSE !(\read(tmp)) [L378] methAndRunningLastTime = 0 [L154] RET __utac_acc__Specification2_spec__2() [L110] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 65]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L801] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L345] int methAndRunningLastTime ; [L424] int methaneLevelCritical = 0; [L131] int pumpRunning = 0; [L423] int waterLevel = 1; [L132] int systemActive = 1; [L526] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L600] int retValue_acc ; [L601] int tmp ; [L605] FCALL select_helpers() [L606] FCALL select_features() [L607] CALL, EXPR valid_product() [L413] int retValue_acc ; [L416] retValue_acc = 1 [L417] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L607] RET, EXPR valid_product() [L607] tmp = valid_product() [L609] COND TRUE \read(tmp) [L611] FCALL setup() [L612] CALL runTest() [L593] CALL __utac_acc__Specification2_spec__1() [L350] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L593] RET __utac_acc__Specification2_spec__1() [L594] CALL test() [L56] int splverifierCounter ; [L57] int tmp ; [L58] int tmp___0 ; [L59] int tmp___1 ; [L60] int tmp___2 ; [L63] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L65] COND TRUE 1 [L67] COND TRUE splverifierCounter < 4 [L73] tmp = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp)) [L83] tmp___0 = __VERIFIER_nondet_int() [L85] COND FALSE !(\read(tmp___0)) [L93] tmp___2 = __VERIFIER_nondet_int() [L95] COND TRUE \read(tmp___2) [L110] CALL timeShift() [L139] COND FALSE !(\read(pumpRunning)) [L146] COND TRUE \read(systemActive) [L148] CALL processEnvironment() [L194] int tmp ; [L197] COND FALSE !(\read(pumpRunning)) [L212] CALL processEnvironment__wrappee__highWaterSensor() [L168] int tmp ; [L171] COND TRUE ! pumpRunning [L173] CALL, EXPR isHighWaterLevel() [L291] int retValue_acc ; [L292] int tmp ; [L293] int tmp___0 ; [L297] CALL, EXPR isHighWaterSensorDry() [L503] int retValue_acc ; [L506] COND TRUE waterLevel < 2 [L507] retValue_acc = 1 [L508] return (retValue_acc); [L297] RET, EXPR isHighWaterSensorDry() [L297] tmp = isHighWaterSensorDry() [L299] COND TRUE \read(tmp) [L300] tmp___0 = 0 [L304] retValue_acc = tmp___0 [L305] return (retValue_acc); [L173] RET, EXPR isHighWaterLevel() [L173] tmp = isHighWaterLevel() [L175] COND FALSE !(\read(tmp)) [L181] FCALL processEnvironment__wrappee__base() [L212] RET processEnvironment__wrappee__highWaterSensor() [L148] RET processEnvironment() [L154] CALL __utac_acc__Specification2_spec__2() [L355] int tmp ; [L356] int tmp___0 ; [L360] CALL, EXPR isMethaneLevelCritical() [L462] int retValue_acc ; [L465] retValue_acc = methaneLevelCritical [L466] return (retValue_acc); [L360] RET, EXPR isMethaneLevelCritical() [L360] tmp = isMethaneLevelCritical() [L362] COND FALSE !(\read(tmp)) [L378] methAndRunningLastTime = 0 [L154] RET __utac_acc__Specification2_spec__2() [L110] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-11-18 19:56:20,941 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1afb108-ccd1-45f8-ae09-1081a7d7abee/bin/uautomizer-TMbwUNV5ro/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)