./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product56.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6b4ec56b 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_a01655cf-77c2-4ffb-a65b-2d10bbf17a87/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01655cf-77c2-4ffb-a65b-2d10bbf17a87/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01655cf-77c2-4ffb-a65b-2d10bbf17a87/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01655cf-77c2-4ffb-a65b-2d10bbf17a87/bin/uautomizer-ug76WZFUDN/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product56.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01655cf-77c2-4ffb-a65b-2d10bbf17a87/bin/uautomizer-ug76WZFUDN/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01655cf-77c2-4ffb-a65b-2d10bbf17a87/bin/uautomizer-ug76WZFUDN --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 fa0eab3945757815cbe114f72b31b9c97b3f41e20a7d5f245c817ae82afdf9aa --- 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-6b4ec56 [2022-11-20 11:17:27,305 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:17:27,307 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:17:27,329 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:17:27,330 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:17:27,340 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:17:27,343 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:17:27,346 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:17:27,349 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:17:27,354 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:17:27,355 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:17:27,356 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:17:27,357 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:17:27,358 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:17:27,359 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:17:27,360 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:17:27,361 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:17:27,362 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:17:27,368 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:17:27,375 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:17:27,379 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:17:27,382 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:17:27,384 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:17:27,385 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:17:27,396 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:17:27,396 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:17:27,397 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:17:27,399 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:17:27,399 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:17:27,400 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:17:27,401 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:17:27,402 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:17:27,404 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:17:27,407 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:17:27,409 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:17:27,409 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:17:27,410 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:17:27,410 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:17:27,411 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:17:27,412 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:17:27,413 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:17:27,414 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01655cf-77c2-4ffb-a65b-2d10bbf17a87/bin/uautomizer-ug76WZFUDN/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-11-20 11:17:27,454 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:17:27,455 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:17:27,455 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:17:27,455 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:17:27,456 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:17:27,457 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:17:27,457 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:17:27,457 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-20 11:17:27,457 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-20 11:17:27,457 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-20 11:17:27,458 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-20 11:17:27,458 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-20 11:17:27,458 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-20 11:17:27,458 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:17:27,459 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 11:17:27,459 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 11:17:27,459 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:17:27,459 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 11:17:27,459 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:17:27,460 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-20 11:17:27,460 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-20 11:17:27,460 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-20 11:17:27,460 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 11:17:27,460 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:17:27,461 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-20 11:17:27,461 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:17:27,461 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-20 11:17:27,462 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:17:27,462 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:17:27,462 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:17:27,463 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:17:27,464 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-20 11:17:27,464 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_a01655cf-77c2-4ffb-a65b-2d10bbf17a87/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01655cf-77c2-4ffb-a65b-2d10bbf17a87/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fa0eab3945757815cbe114f72b31b9c97b3f41e20a7d5f245c817ae82afdf9aa [2022-11-20 11:17:27,750 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:17:27,792 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:17:27,795 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:17:27,796 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:17:27,797 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:17:27,798 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01655cf-77c2-4ffb-a65b-2d10bbf17a87/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/product-lines/minepump_spec2_product56.cil.c [2022-11-20 11:17:30,942 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:17:31,243 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:17:31,256 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01655cf-77c2-4ffb-a65b-2d10bbf17a87/sv-benchmarks/c/product-lines/minepump_spec2_product56.cil.c [2022-11-20 11:17:31,271 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01655cf-77c2-4ffb-a65b-2d10bbf17a87/bin/uautomizer-ug76WZFUDN/data/66c3d4f19/a0ec09a1cb324b62a9ad8eaac95e825c/FLAGca71ecb59 [2022-11-20 11:17:31,285 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01655cf-77c2-4ffb-a65b-2d10bbf17a87/bin/uautomizer-ug76WZFUDN/data/66c3d4f19/a0ec09a1cb324b62a9ad8eaac95e825c [2022-11-20 11:17:31,288 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:17:31,290 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:17:31,292 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:17:31,292 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:17:31,296 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:17:31,297 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:17:31" (1/1) ... [2022-11-20 11:17:31,299 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@386b48f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:17:31, skipping insertion in model container [2022-11-20 11:17:31,299 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:17:31" (1/1) ... [2022-11-20 11:17:31,308 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:17:31,347 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:17:31,587 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01655cf-77c2-4ffb-a65b-2d10bbf17a87/sv-benchmarks/c/product-lines/minepump_spec2_product56.cil.c[11292,11305] [2022-11-20 11:17:31,636 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:17:31,651 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:17:31,706 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01655cf-77c2-4ffb-a65b-2d10bbf17a87/sv-benchmarks/c/product-lines/minepump_spec2_product56.cil.c[11292,11305] [2022-11-20 11:17:31,729 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:17:31,749 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:17:31,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:17:31 WrapperNode [2022-11-20 11:17:31,750 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:17:31,751 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:17:31,752 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:17:31,752 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:17:31,760 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:17:31" (1/1) ... [2022-11-20 11:17:31,774 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:17:31" (1/1) ... [2022-11-20 11:17:31,832 INFO L138 Inliner]: procedures = 59, calls = 106, calls flagged for inlining = 59, calls inlined = 141, statements flattened = 971 [2022-11-20 11:17:31,833 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:17:31,833 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:17:31,834 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:17:31,834 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:17:31,856 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:17:31" (1/1) ... [2022-11-20 11:17:31,857 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:17:31" (1/1) ... [2022-11-20 11:17:31,875 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:17:31" (1/1) ... [2022-11-20 11:17:31,876 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:17:31" (1/1) ... [2022-11-20 11:17:31,906 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:17:31" (1/1) ... [2022-11-20 11:17:31,923 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:17:31" (1/1) ... [2022-11-20 11:17:31,927 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:17:31" (1/1) ... [2022-11-20 11:17:31,929 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:17:31" (1/1) ... [2022-11-20 11:17:31,934 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:17:31,935 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:17:31,935 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:17:31,935 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:17:31,936 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:17:31" (1/1) ... [2022-11-20 11:17:31,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:17:31,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01655cf-77c2-4ffb-a65b-2d10bbf17a87/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:17:32,000 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01655cf-77c2-4ffb-a65b-2d10bbf17a87/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:17:32,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01655cf-77c2-4ffb-a65b-2d10bbf17a87/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-20 11:17:32,060 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:17:32,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 11:17:32,060 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:17:32,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:17:32,181 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:17:32,184 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:17:32,922 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:17:32,933 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:17:32,933 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-20 11:17:32,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:17:32 BoogieIcfgContainer [2022-11-20 11:17:32,936 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:17:32,938 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-20 11:17:32,938 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-20 11:17:32,942 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-20 11:17:32,943 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 11:17:32,944 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 11:17:31" (1/3) ... [2022-11-20 11:17:32,945 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@72dddf19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 11:17:32, skipping insertion in model container [2022-11-20 11:17:32,945 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 11:17:32,945 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:17:31" (2/3) ... [2022-11-20 11:17:32,946 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@72dddf19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 11:17:32, skipping insertion in model container [2022-11-20 11:17:32,946 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 11:17:32,946 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:17:32" (3/3) ... [2022-11-20 11:17:32,948 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product56.cil.c [2022-11-20 11:17:33,024 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-20 11:17:33,025 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-20 11:17:33,025 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-20 11:17:33,025 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-20 11:17:33,025 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-20 11:17:33,025 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-20 11:17:33,025 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-20 11:17:33,026 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-20 11:17:33,045 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 279 states, 278 states have (on average 1.3741007194244603) internal successors, (382), 278 states have internal predecessors, (382), 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) [2022-11-20 11:17:33,108 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 183 [2022-11-20 11:17:33,111 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 11:17:33,111 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 11:17:33,120 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:17:33,121 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:17:33,121 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-20 11:17:33,122 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 279 states, 278 states have (on average 1.3741007194244603) internal successors, (382), 278 states have internal predecessors, (382), 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) [2022-11-20 11:17:33,141 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 183 [2022-11-20 11:17:33,141 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 11:17:33,141 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 11:17:33,145 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:17:33,145 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:17:33,153 INFO L748 eck$LassoCheckResult]: Stem: 264#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;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 182#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 252#L923true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 263#L916true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~12#1;havoc valid_product_~retValue_acc~12#1;valid_product_~retValue_acc~12#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~12#1; 5#L931true main_#t~ret53#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 221#L1019true assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 251#L995true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 55#L543true assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet48#1, test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_~splverifierCounter~0#1, test_~tmp~9#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~9#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 69#L839-2true [2022-11-20 11:17:33,158 INFO L750 eck$LassoCheckResult]: Loop: 69#L839-2true assume !false; 114#L840true assume test_~splverifierCounter~0#1 < 4; 216#L841true test_~tmp~9#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1; 140#L849true assume !(0 != test_~tmp~9#1); 29#L849-2true test_~tmp___0~3#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 130#L859true assume !(0 != test_~tmp___0~3#1); 203#L859-2true test_~tmp___2~0#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 60#L869true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 244#L824true assume { :end_inline_startSystem } true; 193#L877-2true assume { :begin_inline_timeShift } true; 159#L589true assume !(0 != ~pumpRunning~0); 272#L589-2true assume !(0 != ~systemActive~0); 232#L596-1true assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret32#1, __utac_acc__Specification2_spec__2_#t~ret33#1, __utac_acc__Specification2_spec__2_~tmp~3#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~3#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 45#L476-1true __utac_acc__Specification2_spec__2_#t~ret32#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~3#1 := __utac_acc__Specification2_spec__2_#t~ret32#1;havoc __utac_acc__Specification2_spec__2_#t~ret32#1; 280#L554true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~3#1);~methAndRunningLastTime~0 := 0; 155#L554-1true assume { :end_inline___utac_acc__Specification2_spec__2 } true; 166#L606true assume { :end_inline_timeShift } true; 69#L839-2true [2022-11-20 11:17:33,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:17:33,170 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2022-11-20 11:17:33,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:17:33,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769366183] [2022-11-20 11:17:33,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:17:33,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:17:33,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:17:33,320 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:17:33,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:17:33,384 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:17:33,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:17:33,388 INFO L85 PathProgramCache]: Analyzing trace with hash -1637638967, now seen corresponding path program 1 times [2022-11-20 11:17:33,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:17:33,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236108185] [2022-11-20 11:17:33,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:17:33,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:17:33,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:17:33,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:17:33,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:17:33,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236108185] [2022-11-20 11:17:33,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236108185] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:17:33,500 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:17:33,500 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:17:33,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067874496] [2022-11-20 11:17:33,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:17:33,506 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-20 11:17:33,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:17:33,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:17:33,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:17:33,543 INFO L87 Difference]: Start difference. First operand has 279 states, 278 states have (on average 1.3741007194244603) internal successors, (382), 278 states have internal predecessors, (382), 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 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2022-11-20 11:17:33,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:17:33,635 INFO L93 Difference]: Finished difference Result 542 states and 730 transitions. [2022-11-20 11:17:33,637 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 542 states and 730 transitions. [2022-11-20 11:17:33,642 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 356 [2022-11-20 11:17:33,650 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 542 states to 522 states and 709 transitions. [2022-11-20 11:17:33,651 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 522 [2022-11-20 11:17:33,653 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 522 [2022-11-20 11:17:33,653 INFO L73 IsDeterministic]: Start isDeterministic. Operand 522 states and 709 transitions. [2022-11-20 11:17:33,656 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:17:33,656 INFO L218 hiAutomatonCegarLoop]: Abstraction has 522 states and 709 transitions. [2022-11-20 11:17:33,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states and 709 transitions. [2022-11-20 11:17:33,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 519. [2022-11-20 11:17:33,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 519 states, 519 states have (on average 1.3583815028901733) internal successors, (705), 518 states have internal predecessors, (705), 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) [2022-11-20 11:17:33,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 705 transitions. [2022-11-20 11:17:33,711 INFO L240 hiAutomatonCegarLoop]: Abstraction has 519 states and 705 transitions. [2022-11-20 11:17:33,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:17:33,719 INFO L428 stractBuchiCegarLoop]: Abstraction has 519 states and 705 transitions. [2022-11-20 11:17:33,720 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-20 11:17:33,720 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 519 states and 705 transitions. [2022-11-20 11:17:33,725 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 353 [2022-11-20 11:17:33,725 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 11:17:33,725 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 11:17:33,727 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:17:33,728 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] [2022-11-20 11:17:33,728 INFO L748 eck$LassoCheckResult]: Stem: 1130#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;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 1085#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 1086#L923 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1125#L916 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~12#1;havoc valid_product_~retValue_acc~12#1;valid_product_~retValue_acc~12#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~12#1; 837#L931 main_#t~ret53#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 838#L1019 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 1107#L995 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 929#L543 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet48#1, test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_~splverifierCounter~0#1, test_~tmp~9#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~9#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 930#L839-2 [2022-11-20 11:17:33,729 INFO L750 eck$LassoCheckResult]: Loop: 930#L839-2 assume !false; 957#L840 assume test_~splverifierCounter~0#1 < 4; 1018#L841 test_~tmp~9#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1; 1201#L849 assume !(0 != test_~tmp~9#1); 1198#L849-2 test_~tmp___0~3#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 1195#L859 assume !(0 != test_~tmp___0~3#1); 1192#L859-2 test_~tmp___2~0#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 1182#L869 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 1175#L877 assume !(0 != test_~tmp___1~0#1); 1121#L877-2 assume { :begin_inline_timeShift } true; 1172#L589 assume !(0 != ~pumpRunning~0); 1168#L589-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 1164#L673 assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret37#1, isMethaneAlarm_~retValue_acc~7#1;havoc isMethaneAlarm_~retValue_acc~7#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 1160#L476 isMethaneAlarm_#t~ret37#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~7#1 := isMethaneAlarm_#t~ret37#1;havoc isMethaneAlarm_#t~ret37#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~7#1; 1155#L717 processEnvironment_#t~ret36#1 := isMethaneAlarm_#res#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~6#1 := processEnvironment_#t~ret36#1;havoc processEnvironment_#t~ret36#1; 1152#L677 assume 0 != processEnvironment_~tmp~6#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; 1149#L707-1 assume { :end_inline_deactivatePump } true; 1148#L673-1 assume { :end_inline_processEnvironment } true; 1147#L596-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret32#1, __utac_acc__Specification2_spec__2_#t~ret33#1, __utac_acc__Specification2_spec__2_~tmp~3#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~3#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 1146#L476-1 __utac_acc__Specification2_spec__2_#t~ret32#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~3#1 := __utac_acc__Specification2_spec__2_#t~ret32#1;havoc __utac_acc__Specification2_spec__2_#t~ret32#1; 1134#L554 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~3#1);~methAndRunningLastTime~0 := 0; 1047#L554-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 1061#L606 assume { :end_inline_timeShift } true; 930#L839-2 [2022-11-20 11:17:33,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:17:33,731 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2022-11-20 11:17:33,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:17:33,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31915836] [2022-11-20 11:17:33,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:17:33,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:17:33,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:17:33,757 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:17:33,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:17:33,786 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:17:33,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:17:33,787 INFO L85 PathProgramCache]: Analyzing trace with hash -92248384, now seen corresponding path program 1 times [2022-11-20 11:17:33,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:17:33,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976627723] [2022-11-20 11:17:33,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:17:33,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:17:33,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:17:33,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:17:33,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:17:33,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976627723] [2022-11-20 11:17:33,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976627723] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:17:33,829 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:17:33,829 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:17:33,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711176797] [2022-11-20 11:17:33,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:17:33,830 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-20 11:17:33,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:17:33,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:17:33,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:17:33,831 INFO L87 Difference]: Start difference. First operand 519 states and 705 transitions. cyclomatic complexity: 189 Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:17:33,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:17:33,979 INFO L93 Difference]: Finished difference Result 547 states and 708 transitions. [2022-11-20 11:17:33,980 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 547 states and 708 transitions. [2022-11-20 11:17:33,985 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 383 [2022-11-20 11:17:33,988 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 547 states to 547 states and 708 transitions. [2022-11-20 11:17:33,988 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 547 [2022-11-20 11:17:33,989 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 547 [2022-11-20 11:17:33,989 INFO L73 IsDeterministic]: Start isDeterministic. Operand 547 states and 708 transitions. [2022-11-20 11:17:33,992 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:17:33,992 INFO L218 hiAutomatonCegarLoop]: Abstraction has 547 states and 708 transitions. [2022-11-20 11:17:33,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states and 708 transitions. [2022-11-20 11:17:34,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 547. [2022-11-20 11:17:34,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 547 states have (on average 1.2943327239488116) internal successors, (708), 546 states have internal predecessors, (708), 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) [2022-11-20 11:17:34,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 708 transitions. [2022-11-20 11:17:34,034 INFO L240 hiAutomatonCegarLoop]: Abstraction has 547 states and 708 transitions. [2022-11-20 11:17:34,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:17:34,036 INFO L428 stractBuchiCegarLoop]: Abstraction has 547 states and 708 transitions. [2022-11-20 11:17:34,036 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-20 11:17:34,036 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 547 states and 708 transitions. [2022-11-20 11:17:34,040 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 383 [2022-11-20 11:17:34,048 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 11:17:34,048 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 11:17:34,049 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:17:34,049 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:17:34,049 INFO L748 eck$LassoCheckResult]: Stem: 2170#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;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 2121#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 2122#L923 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2167#L916 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~12#1;havoc valid_product_~retValue_acc~12#1;valid_product_~retValue_acc~12#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~12#1; 1906#L931 main_#t~ret53#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 1907#L1019 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 2146#L995 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 1983#L543 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet48#1, test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_~splverifierCounter~0#1, test_~tmp~9#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~9#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1984#L839-2 [2022-11-20 11:17:34,050 INFO L750 eck$LassoCheckResult]: Loop: 1984#L839-2 assume !false; 2227#L840 assume test_~splverifierCounter~0#1 < 4; 2226#L841 test_~tmp~9#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1; 2225#L849 assume !(0 != test_~tmp~9#1); 2224#L849-2 test_~tmp___0~3#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 2223#L859 assume !(0 != test_~tmp___0~3#1); 2139#L859-2 test_~tmp___2~0#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 2140#L869 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 1992#L824 assume { :end_inline_startSystem } true; 1934#L877-2 assume { :begin_inline_timeShift } true; 2107#L589 assume !(0 != ~pumpRunning~0); 2108#L589-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 2172#L673 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret35#1, processEnvironment__wrappee__lowWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~5#1; 2209#L647-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret34#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4#1; 2257#L621-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret46#1, isHighWaterLevel_~retValue_acc~9#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~9#1;havoc isHighWaterLevel_~tmp~7#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;havoc isHighWaterSensorDry_~retValue_acc~5#1; 2256#L516-3 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~5#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~5#1; 2255#L521-3 isHighWaterLevel_#t~ret46#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7#1 := isHighWaterLevel_#t~ret46#1;havoc isHighWaterLevel_#t~ret46#1; 2150#L775-9 assume 0 != isHighWaterLevel_~tmp~7#1;isHighWaterLevel_~tmp___0~1#1 := 0; 1938#L775-11 isHighWaterLevel_~retValue_acc~9#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~9#1; 1939#L781-3 processEnvironment__wrappee__highWaterSensor_#t~ret34#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~4#1 := processEnvironment__wrappee__highWaterSensor_#t~ret34#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret34#1; 2145#L625-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2136#L613-6 assume { :end_inline_processEnvironment__wrappee__base } true; 2137#L621-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 2290#L647-3 assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 2016#L673-1 assume { :end_inline_processEnvironment } true; 2216#L596-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret32#1, __utac_acc__Specification2_spec__2_#t~ret33#1, __utac_acc__Specification2_spec__2_~tmp~3#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~3#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 2217#L476-1 __utac_acc__Specification2_spec__2_#t~ret32#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~3#1 := __utac_acc__Specification2_spec__2_#t~ret32#1;havoc __utac_acc__Specification2_spec__2_#t~ret32#1; 2232#L554 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~3#1);~methAndRunningLastTime~0 := 0; 2229#L554-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 2228#L606 assume { :end_inline_timeShift } true; 1984#L839-2 [2022-11-20 11:17:34,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:17:34,066 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2022-11-20 11:17:34,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:17:34,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429077408] [2022-11-20 11:17:34,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:17:34,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:17:34,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:17:34,078 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:17:34,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:17:34,101 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:17:34,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:17:34,102 INFO L85 PathProgramCache]: Analyzing trace with hash -1804041310, now seen corresponding path program 1 times [2022-11-20 11:17:34,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:17:34,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274898759] [2022-11-20 11:17:34,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:17:34,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:17:34,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:17:34,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:17:34,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:17:34,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274898759] [2022-11-20 11:17:34,251 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274898759] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:17:34,251 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:17:34,251 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 11:17:34,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408229989] [2022-11-20 11:17:34,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:17:34,252 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-20 11:17:34,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:17:34,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:17:34,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:17:34,281 INFO L87 Difference]: Start difference. First operand 547 states and 708 transitions. cyclomatic complexity: 164 Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 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) [2022-11-20 11:17:34,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:17:34,459 INFO L93 Difference]: Finished difference Result 1553 states and 1964 transitions. [2022-11-20 11:17:34,459 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1553 states and 1964 transitions. [2022-11-20 11:17:34,469 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 1101 [2022-11-20 11:17:34,478 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1553 states to 1553 states and 1964 transitions. [2022-11-20 11:17:34,478 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1553 [2022-11-20 11:17:34,480 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1553 [2022-11-20 11:17:34,480 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1553 states and 1964 transitions. [2022-11-20 11:17:34,484 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:17:34,484 INFO L218 hiAutomatonCegarLoop]: Abstraction has 1553 states and 1964 transitions. [2022-11-20 11:17:34,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1553 states and 1964 transitions. [2022-11-20 11:17:34,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1553 to 583. [2022-11-20 11:17:34,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 583 states, 583 states have (on average 1.2761578044596913) internal successors, (744), 582 states have internal predecessors, (744), 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) [2022-11-20 11:17:34,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 744 transitions. [2022-11-20 11:17:34,512 INFO L240 hiAutomatonCegarLoop]: Abstraction has 583 states and 744 transitions. [2022-11-20 11:17:34,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 11:17:34,514 INFO L428 stractBuchiCegarLoop]: Abstraction has 583 states and 744 transitions. [2022-11-20 11:17:34,514 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-20 11:17:34,514 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 583 states and 744 transitions. [2022-11-20 11:17:34,517 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 407 [2022-11-20 11:17:34,517 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 11:17:34,517 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 11:17:34,518 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:17:34,518 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:17:34,519 INFO L748 eck$LassoCheckResult]: Stem: 4296#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;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 4244#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 4245#L923 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 4293#L916 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~12#1;havoc valid_product_~retValue_acc~12#1;valid_product_~retValue_acc~12#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~12#1; 4016#L931 main_#t~ret53#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 4017#L1019 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 4270#L995 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 4093#L543 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet48#1, test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_~splverifierCounter~0#1, test_~tmp~9#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~9#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 4094#L839-2 [2022-11-20 11:17:34,519 INFO L750 eck$LassoCheckResult]: Loop: 4094#L839-2 assume !false; 4329#L840 assume test_~splverifierCounter~0#1 < 4; 4330#L841 test_~tmp~9#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1; 4323#L849 assume !(0 != test_~tmp~9#1); 4322#L849-2 test_~tmp___0~3#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 4315#L859 assume !(0 != test_~tmp___0~3#1); 4314#L859-2 test_~tmp___2~0#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 4354#L869 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 4103#L824 assume { :end_inline_startSystem } true; 4045#L877-2 assume { :begin_inline_timeShift } true; 4226#L589 assume !(0 != ~pumpRunning~0); 4227#L589-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 4401#L673 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret35#1, processEnvironment__wrappee__lowWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~5#1; 4396#L647-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret34#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4#1; 4394#L621-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret46#1, isHighWaterLevel_~retValue_acc~9#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~9#1;havoc isHighWaterLevel_~tmp~7#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;havoc isHighWaterSensorDry_~retValue_acc~5#1; 4153#L516-3 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~5#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~5#1; 4154#L521-3 isHighWaterLevel_#t~ret46#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7#1 := isHighWaterLevel_#t~ret46#1;havoc isHighWaterLevel_#t~ret46#1; 4275#L775-9 assume !(0 != isHighWaterLevel_~tmp~7#1);isHighWaterLevel_~tmp___0~1#1 := 1; 4049#L775-11 isHighWaterLevel_~retValue_acc~9#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~9#1; 4050#L781-3 processEnvironment__wrappee__highWaterSensor_#t~ret34#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~4#1 := processEnvironment__wrappee__highWaterSensor_#t~ret34#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret34#1; 4054#L625-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 4055#L613-6 assume { :end_inline_processEnvironment__wrappee__base } true; 4381#L621-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 4379#L647-3 assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 4376#L673-1 assume { :end_inline_processEnvironment } true; 4345#L596-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret32#1, __utac_acc__Specification2_spec__2_#t~ret33#1, __utac_acc__Specification2_spec__2_~tmp~3#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~3#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 4346#L476-1 __utac_acc__Specification2_spec__2_#t~ret32#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~3#1 := __utac_acc__Specification2_spec__2_#t~ret32#1;havoc __utac_acc__Specification2_spec__2_#t~ret32#1; 4339#L554 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~3#1);~methAndRunningLastTime~0 := 0; 4337#L554-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 4333#L606 assume { :end_inline_timeShift } true; 4094#L839-2 [2022-11-20 11:17:34,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:17:34,520 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2022-11-20 11:17:34,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:17:34,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280872535] [2022-11-20 11:17:34,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:17:34,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:17:34,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:17:34,529 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:17:34,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:17:34,540 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:17:34,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:17:34,541 INFO L85 PathProgramCache]: Analyzing trace with hash 1904119972, now seen corresponding path program 1 times [2022-11-20 11:17:34,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:17:34,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836404177] [2022-11-20 11:17:34,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:17:34,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:17:34,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:17:34,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:17:34,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:17:34,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836404177] [2022-11-20 11:17:34,619 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836404177] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:17:34,619 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:17:34,619 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:17:34,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368747200] [2022-11-20 11:17:34,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:17:34,620 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-20 11:17:34,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:17:34,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:17:34,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:17:34,621 INFO L87 Difference]: Start difference. First operand 583 states and 744 transitions. cyclomatic complexity: 164 Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 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) [2022-11-20 11:17:34,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:17:34,817 INFO L93 Difference]: Finished difference Result 1684 states and 2154 transitions. [2022-11-20 11:17:34,818 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1684 states and 2154 transitions. [2022-11-20 11:17:34,828 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 1212 [2022-11-20 11:17:34,837 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1684 states to 1684 states and 2154 transitions. [2022-11-20 11:17:34,837 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1684 [2022-11-20 11:17:34,839 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1684 [2022-11-20 11:17:34,839 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1684 states and 2154 transitions. [2022-11-20 11:17:34,841 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:17:34,842 INFO L218 hiAutomatonCegarLoop]: Abstraction has 1684 states and 2154 transitions. [2022-11-20 11:17:34,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1684 states and 2154 transitions. [2022-11-20 11:17:34,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1684 to 637. [2022-11-20 11:17:34,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 637 states, 637 states have (on average 1.2527472527472527) internal successors, (798), 636 states have internal predecessors, (798), 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) [2022-11-20 11:17:34,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 637 states to 637 states and 798 transitions. [2022-11-20 11:17:34,863 INFO L240 hiAutomatonCegarLoop]: Abstraction has 637 states and 798 transitions. [2022-11-20 11:17:34,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:17:34,865 INFO L428 stractBuchiCegarLoop]: Abstraction has 637 states and 798 transitions. [2022-11-20 11:17:34,865 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-11-20 11:17:34,865 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 637 states and 798 transitions. [2022-11-20 11:17:34,868 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 443 [2022-11-20 11:17:34,868 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 11:17:34,868 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 11:17:34,869 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:17:34,869 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:17:34,869 INFO L748 eck$LassoCheckResult]: Stem: 6611#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;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 6538#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 6539#L923 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 6603#L916 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~12#1;havoc valid_product_~retValue_acc~12#1;valid_product_~retValue_acc~12#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~12#1; 6297#L931 main_#t~ret53#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 6298#L1019 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 6574#L995 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 6376#L543 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet48#1, test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_~splverifierCounter~0#1, test_~tmp~9#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~9#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 6377#L839-2 [2022-11-20 11:17:34,870 INFO L750 eck$LassoCheckResult]: Loop: 6377#L839-2 assume !false; 6820#L840 assume test_~splverifierCounter~0#1 < 4; 6821#L841 test_~tmp~9#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1; 6926#L849 assume !(0 != test_~tmp~9#1); 6806#L849-2 test_~tmp___0~3#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 6804#L859 assume !(0 != test_~tmp___0~3#1); 6555#L859-2 test_~tmp___2~0#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 6385#L869 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 6386#L824 assume { :end_inline_startSystem } true; 6327#L877-2 assume { :begin_inline_timeShift } true; 6512#L589 assume !(0 != ~pumpRunning~0); 6513#L589-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 6530#L673 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret35#1, processEnvironment__wrappee__lowWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~5#1; 6531#L647-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret34#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4#1; 6785#L621-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret46#1, isHighWaterLevel_~retValue_acc~9#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~9#1;havoc isHighWaterLevel_~tmp~7#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;havoc isHighWaterSensorDry_~retValue_acc~5#1; 6784#L516-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~5#1; 6783#L521-3 isHighWaterLevel_#t~ret46#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7#1 := isHighWaterLevel_#t~ret46#1;havoc isHighWaterLevel_#t~ret46#1; 6782#L775-9 assume 0 != isHighWaterLevel_~tmp~7#1;isHighWaterLevel_~tmp___0~1#1 := 0; 6652#L775-11 isHighWaterLevel_~retValue_acc~9#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~9#1; 6653#L781-3 processEnvironment__wrappee__highWaterSensor_#t~ret34#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~4#1 := processEnvironment__wrappee__highWaterSensor_#t~ret34#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret34#1; 6628#L625-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 6552#L613-6 assume { :end_inline_processEnvironment__wrappee__base } true; 6553#L621-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 6466#L647-3 assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 6412#L673-1 assume { :end_inline_processEnvironment } true; 6592#L596-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret32#1, __utac_acc__Specification2_spec__2_#t~ret33#1, __utac_acc__Specification2_spec__2_~tmp~3#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~3#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 6593#L476-1 __utac_acc__Specification2_spec__2_#t~ret32#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~3#1 := __utac_acc__Specification2_spec__2_#t~ret32#1;havoc __utac_acc__Specification2_spec__2_#t~ret32#1; 6828#L554 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~3#1);~methAndRunningLastTime~0 := 0; 6826#L554-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 6824#L606 assume { :end_inline_timeShift } true; 6377#L839-2 [2022-11-20 11:17:34,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:17:34,870 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 5 times [2022-11-20 11:17:34,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:17:34,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155946384] [2022-11-20 11:17:34,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:17:34,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:17:34,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:17:34,899 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:17:34,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:17:34,912 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:17:34,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:17:34,919 INFO L85 PathProgramCache]: Analyzing trace with hash -524177632, now seen corresponding path program 1 times [2022-11-20 11:17:34,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:17:34,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905868522] [2022-11-20 11:17:34,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:17:34,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:17:34,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:17:34,936 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:17:34,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:17:34,943 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:17:34,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:17:34,947 INFO L85 PathProgramCache]: Analyzing trace with hash 1804932169, now seen corresponding path program 1 times [2022-11-20 11:17:34,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:17:34,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793106516] [2022-11-20 11:17:34,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:17:34,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:17:34,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:17:34,966 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:17:34,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:17:34,991 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:17:36,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:17:36,387 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:17:36,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:17:36,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 11:17:36 BoogieIcfgContainer [2022-11-20 11:17:36,456 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-20 11:17:36,457 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 11:17:36,457 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 11:17:36,457 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 11:17:36,458 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:17:32" (3/4) ... [2022-11-20 11:17:36,460 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-11-20 11:17:36,508 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01655cf-77c2-4ffb-a65b-2d10bbf17a87/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 11:17:36,508 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 11:17:36,509 INFO L158 Benchmark]: Toolchain (without parser) took 5219.11ms. Allocated memory is still 180.4MB. Free memory was 134.8MB in the beginning and 63.1MB in the end (delta: 71.7MB). Peak memory consumption was 72.7MB. Max. memory is 16.1GB. [2022-11-20 11:17:36,509 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 134.2MB. Free memory is still 77.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:17:36,510 INFO L158 Benchmark]: CACSL2BoogieTranslator took 458.80ms. Allocated memory is still 180.4MB. Free memory was 134.8MB in the beginning and 115.6MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-20 11:17:36,510 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.35ms. Allocated memory is still 180.4MB. Free memory was 115.6MB in the beginning and 111.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 11:17:36,510 INFO L158 Benchmark]: Boogie Preprocessor took 100.82ms. Allocated memory is still 180.4MB. Free memory was 111.4MB in the beginning and 108.1MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 11:17:36,511 INFO L158 Benchmark]: RCFGBuilder took 1001.65ms. Allocated memory is still 180.4MB. Free memory was 108.1MB in the beginning and 122.1MB in the end (delta: -14.0MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. [2022-11-20 11:17:36,511 INFO L158 Benchmark]: BuchiAutomizer took 3518.96ms. Allocated memory is still 180.4MB. Free memory was 122.1MB in the beginning and 66.3MB in the end (delta: 55.9MB). Peak memory consumption was 56.8MB. Max. memory is 16.1GB. [2022-11-20 11:17:36,511 INFO L158 Benchmark]: Witness Printer took 51.66ms. Allocated memory is still 180.4MB. Free memory was 66.3MB in the beginning and 63.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:17:36,513 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 134.2MB. Free memory is still 77.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 458.80ms. Allocated memory is still 180.4MB. Free memory was 134.8MB in the beginning and 115.6MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.35ms. Allocated memory is still 180.4MB. Free memory was 115.6MB in the beginning and 111.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 100.82ms. Allocated memory is still 180.4MB. Free memory was 111.4MB in the beginning and 108.1MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1001.65ms. Allocated memory is still 180.4MB. Free memory was 108.1MB in the beginning and 122.1MB in the end (delta: -14.0MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. * BuchiAutomizer took 3518.96ms. Allocated memory is still 180.4MB. Free memory was 122.1MB in the beginning and 66.3MB in the end (delta: 55.9MB). Peak memory consumption was 56.8MB. Max. memory is 16.1GB. * Witness Printer took 51.66ms. Allocated memory is still 180.4MB. Free memory was 66.3MB in the beginning and 63.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.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 5 locations. The remainder module has 637 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.4s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 2.3s. Construction of modules took 0.3s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 0. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 2020 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, 2159 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2159 mSDsluCounter, 3500 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2130 mSDsCounter, 112 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 252 IncrementalHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 112 mSolverCounterUnsat, 1370 mSDtfsCounter, 252 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI4 SFLT0 conc0 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: 839]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L433] int waterLevel = 1; [L434] int methaneLevelCritical = 0; [L537] int methAndRunningLastTime ; [L582] int pumpRunning = 0; [L583] int systemActive = 1; [L936] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L1010] int retValue_acc ; [L1011] int tmp ; [L1015] FCALL select_helpers() [L1016] FCALL select_features() [L1017] CALL, EXPR valid_product() [L927] int retValue_acc ; [L930] retValue_acc = 1 [L931] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L1017] RET, EXPR valid_product() [L1017] tmp = valid_product() [L1019] COND TRUE \read(tmp) [L1021] FCALL setup() [L1022] CALL runTest() [L1003] CALL __utac_acc__Specification2_spec__1() [L542] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L1003] RET __utac_acc__Specification2_spec__1() [L1004] CALL test() [L830] int splverifierCounter ; [L831] int tmp ; [L832] int tmp___0 ; [L833] int tmp___1 ; [L834] int tmp___2 ; [L837] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L839] COND TRUE 1 [L841] COND TRUE splverifierCounter < 4 [L847] tmp = __VERIFIER_nondet_int() [L849] COND FALSE !(\read(tmp)) [L857] tmp___0 = __VERIFIER_nondet_int() [L859] COND FALSE !(\read(tmp___0)) [L867] tmp___2 = __VERIFIER_nondet_int() [L869] COND TRUE \read(tmp___2) [L871] CALL startSystem() [L823] systemActive = 1 [L871] RET startSystem() [L886] CALL timeShift() [L589] COND FALSE !(\read(pumpRunning)) [L596] COND TRUE \read(systemActive) [L598] CALL processEnvironment() [L670] int tmp ; [L673] COND FALSE !(\read(pumpRunning)) [L688] CALL processEnvironment__wrappee__lowWaterSensor() [L644] int tmp ; [L647] COND FALSE !(\read(pumpRunning)) [L662] CALL processEnvironment__wrappee__highWaterSensor() [L618] int tmp ; [L621] COND TRUE ! pumpRunning [L623] CALL, EXPR isHighWaterLevel() [L767] int retValue_acc ; [L768] int tmp ; [L769] int tmp___0 ; [L773] CALL, EXPR isHighWaterSensorDry() [L513] int retValue_acc ; [L516] COND TRUE waterLevel < 2 [L517] retValue_acc = 1 [L518] return (retValue_acc); [L773] RET, EXPR isHighWaterSensorDry() [L773] tmp = isHighWaterSensorDry() [L775] COND TRUE \read(tmp) [L776] tmp___0 = 0 [L780] retValue_acc = tmp___0 [L781] return (retValue_acc); [L623] RET, EXPR isHighWaterLevel() [L623] tmp = isHighWaterLevel() [L625] COND FALSE !(\read(tmp)) [L631] FCALL processEnvironment__wrappee__base() [L662] RET processEnvironment__wrappee__highWaterSensor() [L688] RET processEnvironment__wrappee__lowWaterSensor() [L598] RET processEnvironment() [L604] CALL __utac_acc__Specification2_spec__2() [L547] int tmp ; [L548] int tmp___0 ; [L552] CALL, EXPR isMethaneLevelCritical() [L472] int retValue_acc ; [L475] retValue_acc = methaneLevelCritical [L476] return (retValue_acc); [L552] RET, EXPR isMethaneLevelCritical() [L552] tmp = isMethaneLevelCritical() [L554] COND FALSE !(\read(tmp)) [L570] methAndRunningLastTime = 0 [L604] RET __utac_acc__Specification2_spec__2() [L886] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 839]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L433] int waterLevel = 1; [L434] int methaneLevelCritical = 0; [L537] int methAndRunningLastTime ; [L582] int pumpRunning = 0; [L583] int systemActive = 1; [L936] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L1010] int retValue_acc ; [L1011] int tmp ; [L1015] FCALL select_helpers() [L1016] FCALL select_features() [L1017] CALL, EXPR valid_product() [L927] int retValue_acc ; [L930] retValue_acc = 1 [L931] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L1017] RET, EXPR valid_product() [L1017] tmp = valid_product() [L1019] COND TRUE \read(tmp) [L1021] FCALL setup() [L1022] CALL runTest() [L1003] CALL __utac_acc__Specification2_spec__1() [L542] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L1003] RET __utac_acc__Specification2_spec__1() [L1004] CALL test() [L830] int splverifierCounter ; [L831] int tmp ; [L832] int tmp___0 ; [L833] int tmp___1 ; [L834] int tmp___2 ; [L837] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L839] COND TRUE 1 [L841] COND TRUE splverifierCounter < 4 [L847] tmp = __VERIFIER_nondet_int() [L849] COND FALSE !(\read(tmp)) [L857] tmp___0 = __VERIFIER_nondet_int() [L859] COND FALSE !(\read(tmp___0)) [L867] tmp___2 = __VERIFIER_nondet_int() [L869] COND TRUE \read(tmp___2) [L871] CALL startSystem() [L823] systemActive = 1 [L871] RET startSystem() [L886] CALL timeShift() [L589] COND FALSE !(\read(pumpRunning)) [L596] COND TRUE \read(systemActive) [L598] CALL processEnvironment() [L670] int tmp ; [L673] COND FALSE !(\read(pumpRunning)) [L688] CALL processEnvironment__wrappee__lowWaterSensor() [L644] int tmp ; [L647] COND FALSE !(\read(pumpRunning)) [L662] CALL processEnvironment__wrappee__highWaterSensor() [L618] int tmp ; [L621] COND TRUE ! pumpRunning [L623] CALL, EXPR isHighWaterLevel() [L767] int retValue_acc ; [L768] int tmp ; [L769] int tmp___0 ; [L773] CALL, EXPR isHighWaterSensorDry() [L513] int retValue_acc ; [L516] COND TRUE waterLevel < 2 [L517] retValue_acc = 1 [L518] return (retValue_acc); [L773] RET, EXPR isHighWaterSensorDry() [L773] tmp = isHighWaterSensorDry() [L775] COND TRUE \read(tmp) [L776] tmp___0 = 0 [L780] retValue_acc = tmp___0 [L781] return (retValue_acc); [L623] RET, EXPR isHighWaterLevel() [L623] tmp = isHighWaterLevel() [L625] COND FALSE !(\read(tmp)) [L631] FCALL processEnvironment__wrappee__base() [L662] RET processEnvironment__wrappee__highWaterSensor() [L688] RET processEnvironment__wrappee__lowWaterSensor() [L598] RET processEnvironment() [L604] CALL __utac_acc__Specification2_spec__2() [L547] int tmp ; [L548] int tmp___0 ; [L552] CALL, EXPR isMethaneLevelCritical() [L472] int retValue_acc ; [L475] retValue_acc = methaneLevelCritical [L476] return (retValue_acc); [L552] RET, EXPR isMethaneLevelCritical() [L552] tmp = isMethaneLevelCritical() [L554] COND FALSE !(\read(tmp)) [L570] methAndRunningLastTime = 0 [L604] RET __utac_acc__Specification2_spec__2() [L886] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-11-20 11:17:36,567 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01655cf-77c2-4ffb-a65b-2d10bbf17a87/bin/uautomizer-ug76WZFUDN/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)