./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product55.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 2329fc70 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_351e1591-3a70-43f8-860e-41485f8f749c/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_351e1591-3a70-43f8-860e-41485f8f749c/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_351e1591-3a70-43f8-860e-41485f8f749c/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_351e1591-3a70-43f8-860e-41485f8f749c/bin/uautomizer-uyxdKDjOR8/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product55.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_351e1591-3a70-43f8-860e-41485f8f749c/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_351e1591-3a70-43f8-860e-41485f8f749c/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 685bdac90b32b89d64927338575dc6f79737e9f84bb9272d4bfb0c942aa4ae35 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 19:10:36,495 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 19:10:36,496 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 19:10:36,509 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 19:10:36,509 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 19:10:36,510 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 19:10:36,511 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 19:10:36,512 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 19:10:36,513 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 19:10:36,513 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 19:10:36,514 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 19:10:36,515 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 19:10:36,515 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 19:10:36,515 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 19:10:36,516 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 19:10:36,517 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 19:10:36,518 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 19:10:36,518 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 19:10:36,519 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 19:10:36,520 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 19:10:36,521 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 19:10:36,522 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 19:10:36,523 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 19:10:36,524 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 19:10:36,526 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 19:10:36,526 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 19:10:36,527 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 19:10:36,527 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 19:10:36,527 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 19:10:36,528 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 19:10:36,528 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 19:10:36,529 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 19:10:36,529 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 19:10:36,530 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 19:10:36,531 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 19:10:36,531 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 19:10:36,531 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 19:10:36,531 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 19:10:36,532 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 19:10:36,532 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 19:10:36,533 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 19:10:36,534 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_351e1591-3a70-43f8-860e-41485f8f749c/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-12-13 19:10:36,549 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 19:10:36,549 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 19:10:36,550 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 19:10:36,550 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 19:10:36,551 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 19:10:36,551 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 19:10:36,551 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 19:10:36,551 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-12-13 19:10:36,551 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-12-13 19:10:36,551 INFO L138 SettingsManager]: * Use old map elimination=false [2022-12-13 19:10:36,552 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-12-13 19:10:36,552 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-12-13 19:10:36,552 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-12-13 19:10:36,552 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 19:10:36,552 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 19:10:36,552 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 19:10:36,552 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 19:10:36,553 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 19:10:36,553 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 19:10:36,553 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-12-13 19:10:36,553 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-12-13 19:10:36,553 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-12-13 19:10:36,553 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 19:10:36,553 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 19:10:36,554 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-12-13 19:10:36,554 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 19:10:36,554 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-12-13 19:10:36,554 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 19:10:36,554 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 19:10:36,555 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 19:10:36,555 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 19:10:36,555 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-12-13 19:10:36,556 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_351e1591-3a70-43f8-860e-41485f8f749c/bin/uautomizer-uyxdKDjOR8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_351e1591-3a70-43f8-860e-41485f8f749c/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 685bdac90b32b89d64927338575dc6f79737e9f84bb9272d4bfb0c942aa4ae35 [2022-12-13 19:10:36,736 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 19:10:36,754 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 19:10:36,756 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 19:10:36,757 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 19:10:36,758 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 19:10:36,759 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_351e1591-3a70-43f8-860e-41485f8f749c/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/product-lines/minepump_spec2_product55.cil.c [2022-12-13 19:10:39,342 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 19:10:39,550 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 19:10:39,550 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_351e1591-3a70-43f8-860e-41485f8f749c/sv-benchmarks/c/product-lines/minepump_spec2_product55.cil.c [2022-12-13 19:10:39,563 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_351e1591-3a70-43f8-860e-41485f8f749c/bin/uautomizer-uyxdKDjOR8/data/8b6992ce1/8f87821cd46840c19e0ee7e8f8faf386/FLAG40bc3529c [2022-12-13 19:10:39,950 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_351e1591-3a70-43f8-860e-41485f8f749c/bin/uautomizer-uyxdKDjOR8/data/8b6992ce1/8f87821cd46840c19e0ee7e8f8faf386 [2022-12-13 19:10:39,954 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 19:10:39,956 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 19:10:39,958 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 19:10:39,958 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 19:10:39,962 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 19:10:39,963 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 07:10:39" (1/1) ... [2022-12-13 19:10:39,964 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55d5ba96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:10:39, skipping insertion in model container [2022-12-13 19:10:39,964 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 07:10:39" (1/1) ... [2022-12-13 19:10:39,970 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 19:10:40,005 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 19:10:40,213 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_351e1591-3a70-43f8-860e-41485f8f749c/sv-benchmarks/c/product-lines/minepump_spec2_product55.cil.c[19412,19425] [2022-12-13 19:10:40,214 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 19:10:40,227 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 19:10:40,286 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_351e1591-3a70-43f8-860e-41485f8f749c/sv-benchmarks/c/product-lines/minepump_spec2_product55.cil.c[19412,19425] [2022-12-13 19:10:40,287 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 19:10:40,302 INFO L208 MainTranslator]: Completed translation [2022-12-13 19:10:40,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:10:40 WrapperNode [2022-12-13 19:10:40,303 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 19:10:40,304 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 19:10:40,304 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 19:10:40,304 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 19:10:40,309 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:10:40" (1/1) ... [2022-12-13 19:10:40,321 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:10:40" (1/1) ... [2022-12-13 19:10:40,359 INFO L138 Inliner]: procedures = 58, calls = 105, calls flagged for inlining = 58, calls inlined = 140, statements flattened = 968 [2022-12-13 19:10:40,359 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 19:10:40,360 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 19:10:40,360 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 19:10:40,360 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 19:10:40,368 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:10:40" (1/1) ... [2022-12-13 19:10:40,368 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:10:40" (1/1) ... [2022-12-13 19:10:40,373 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:10:40" (1/1) ... [2022-12-13 19:10:40,373 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:10:40" (1/1) ... [2022-12-13 19:10:40,385 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:10:40" (1/1) ... [2022-12-13 19:10:40,394 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:10:40" (1/1) ... [2022-12-13 19:10:40,396 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:10:40" (1/1) ... [2022-12-13 19:10:40,399 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:10:40" (1/1) ... [2022-12-13 19:10:40,404 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 19:10:40,405 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 19:10:40,405 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 19:10:40,405 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 19:10:40,406 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:10:40" (1/1) ... [2022-12-13 19:10:40,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 19:10:40,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_351e1591-3a70-43f8-860e-41485f8f749c/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:10:40,434 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_351e1591-3a70-43f8-860e-41485f8f749c/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 19:10:40,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_351e1591-3a70-43f8-860e-41485f8f749c/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-12-13 19:10:40,473 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 19:10:40,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 19:10:40,473 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 19:10:40,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 19:10:40,546 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 19:10:40,548 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 19:10:41,004 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 19:10:41,012 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 19:10:41,012 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-13 19:10:41,015 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:10:41 BoogieIcfgContainer [2022-12-13 19:10:41,015 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 19:10:41,016 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-12-13 19:10:41,016 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-12-13 19:10:41,019 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-12-13 19:10:41,019 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 19:10:41,019 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.12 07:10:39" (1/3) ... [2022-12-13 19:10:41,020 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@89321ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 07:10:41, skipping insertion in model container [2022-12-13 19:10:41,021 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 19:10:41,021 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:10:40" (2/3) ... [2022-12-13 19:10:41,021 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@89321ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 07:10:41, skipping insertion in model container [2022-12-13 19:10:41,021 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 19:10:41,021 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:10:41" (3/3) ... [2022-12-13 19:10:41,023 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product55.cil.c [2022-12-13 19:10:41,075 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-12-13 19:10:41,075 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-12-13 19:10:41,075 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-12-13 19:10:41,075 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-12-13 19:10:41,075 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-12-13 19:10:41,075 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-12-13 19:10:41,075 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-12-13 19:10:41,076 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-12-13 19:10:41,080 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 278 states, 277 states have (on average 1.3754512635379061) internal successors, (381), 277 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:10:41,107 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 182 [2022-12-13 19:10:41,108 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 19:10:41,108 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 19:10:41,114 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:10:41,115 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:10:41,115 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-12-13 19:10:41,116 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 278 states, 277 states have (on average 1.3754512635379061) internal successors, (381), 277 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:10:41,142 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 182 [2022-12-13 19:10:41,142 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 19:10:41,142 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 19:10:41,143 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:10:41,143 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:10:41,148 INFO L748 eck$LassoCheckResult]: Stem: 170#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4; 183#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; 23#select_helpers_returnLabel#1true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 243#select_features_returnLabel#1true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 97#valid_product_returnLabel#1true 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; 32#L1001true assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 77#setup_returnLabel#1true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 111#__utac_acc__Specification2_spec__1_returnLabel#1true assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet10#1, test_#t~nondet11#1, test_#t~nondet12#1, test_#t~nondet13#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 135#L212-2true [2022-12-13 19:10:41,149 INFO L750 eck$LassoCheckResult]: Loop: 135#L212-2true assume !false; 131#L213true assume test_~splverifierCounter~0#1 < 4; 265#L214true test_~tmp~0#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1; 92#L222true assume !(0 != test_~tmp~0#1); 13#L222-2true test_~tmp___0~0#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1; 139#L232true assume !(0 != test_~tmp___0~0#1); 89#L232-2true test_~tmp___2~0#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1; 275#L242true assume 0 != test_~tmp___2~0#1; 172#L248-2true assume { :begin_inline_timeShift } true; 159#L281true assume !(0 != ~pumpRunning~0); 219#L281-2true assume !(0 != ~systemActive~0); 206#L288-1true assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret51#1, __utac_acc__Specification2_spec__2_#t~ret52#1, __utac_acc__Specification2_spec__2_~tmp~9#1, __utac_acc__Specification2_spec__2_~tmp___0~3#1;havoc __utac_acc__Specification2_spec__2_~tmp~9#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; 209#isMethaneLevelCritical_returnLabel#2true __utac_acc__Specification2_spec__2_#t~ret51#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~9#1 := __utac_acc__Specification2_spec__2_#t~ret51#1;havoc __utac_acc__Specification2_spec__2_#t~ret51#1; 10#L896true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~9#1);~methAndRunningLastTime~0 := 0; 222#L896-1true assume { :end_inline___utac_acc__Specification2_spec__2 } true; 201#timeShift_returnLabel#1true assume { :end_inline_timeShift } true; 135#L212-2true [2022-12-13 19:10:41,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:10:41,159 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2022-12-13 19:10:41,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:10:41,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192643416] [2022-12-13 19:10:41,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:10:41,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:10:41,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 19:10:41,237 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 19:10:41,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 19:10:41,267 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 19:10:41,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:10:41,269 INFO L85 PathProgramCache]: Analyzing trace with hash -2025406390, now seen corresponding path program 1 times [2022-12-13 19:10:41,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:10:41,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8543169] [2022-12-13 19:10:41,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:10:41,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:10:41,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 19:10:41,277 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 19:10:41,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 19:10:41,286 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 19:10:41,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:10:41,288 INFO L85 PathProgramCache]: Analyzing trace with hash 2107273523, now seen corresponding path program 1 times [2022-12-13 19:10:41,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:10:41,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043193056] [2022-12-13 19:10:41,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:10:41,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:10:41,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:10:41,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:10:41,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:10:41,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043193056] [2022-12-13 19:10:41,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043193056] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:10:41,458 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:10:41,458 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 19:10:41,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530299852] [2022-12-13 19:10:41,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:10:41,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:10:41,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 19:10:41,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 19:10:41,575 INFO L87 Difference]: Start difference. First operand has 278 states, 277 states have (on average 1.3754512635379061) internal successors, (381), 277 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:10:41,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:10:41,733 INFO L93 Difference]: Finished difference Result 609 states and 816 transitions. [2022-12-13 19:10:41,734 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 609 states and 816 transitions. [2022-12-13 19:10:41,743 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 397 [2022-12-13 19:10:41,749 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 609 states to 579 states and 786 transitions. [2022-12-13 19:10:41,750 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 579 [2022-12-13 19:10:41,751 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 579 [2022-12-13 19:10:41,752 INFO L73 IsDeterministic]: Start isDeterministic. Operand 579 states and 786 transitions. [2022-12-13 19:10:41,754 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:10:41,754 INFO L218 hiAutomatonCegarLoop]: Abstraction has 579 states and 786 transitions. [2022-12-13 19:10:41,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states and 786 transitions. [2022-12-13 19:10:41,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 320. [2022-12-13 19:10:41,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 320 states have (on average 1.35625) internal successors, (434), 319 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:10:41,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 434 transitions. [2022-12-13 19:10:41,787 INFO L240 hiAutomatonCegarLoop]: Abstraction has 320 states and 434 transitions. [2022-12-13 19:10:41,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 19:10:41,791 INFO L428 stractBuchiCegarLoop]: Abstraction has 320 states and 434 transitions. [2022-12-13 19:10:41,792 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-12-13 19:10:41,792 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 320 states and 434 transitions. [2022-12-13 19:10:41,794 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 220 [2022-12-13 19:10:41,794 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 19:10:41,794 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 19:10:41,794 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:10:41,794 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:10:41,795 INFO L748 eck$LassoCheckResult]: Stem: 1132#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4; 1133#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; 946#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 947#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 1054#valid_product_returnLabel#1 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; 963#L1001 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 964#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 1027#__utac_acc__Specification2_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet10#1, test_#t~nondet11#1, test_#t~nondet12#1, test_#t~nondet13#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1075#L212-2 [2022-12-13 19:10:41,795 INFO L750 eck$LassoCheckResult]: Loop: 1075#L212-2 assume !false; 1097#L213 assume test_~splverifierCounter~0#1 < 4; 1098#L214 test_~tmp~0#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1; 1049#L222 assume !(0 != test_~tmp~0#1); 926#L222-2 test_~tmp___0~0#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1; 927#L232 assume !(0 != test_~tmp___0~0#1); 1044#L232-2 test_~tmp___2~0#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1; 1045#L242 assume 0 != test_~tmp___2~0#1; 1108#L248-2 assume { :begin_inline_timeShift } true; 1123#L281 assume !(0 != ~pumpRunning~0); 987#L281-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret16#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 1002#L365 assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret17#1, isMethaneAlarm_~retValue_acc~6#1;havoc isMethaneAlarm_~retValue_acc~6#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; 1003#isMethaneLevelCritical_returnLabel#1 isMethaneAlarm_#t~ret17#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~6#1 := isMethaneAlarm_#t~ret17#1;havoc isMethaneAlarm_#t~ret17#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~6#1; 1167#isMethaneAlarm_returnLabel#1 processEnvironment_#t~ret16#1 := isMethaneAlarm_#res#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~3#1 := processEnvironment_#t~ret16#1;havoc processEnvironment_#t~ret16#1; 1137#L369 assume 0 != processEnvironment_~tmp~3#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; 1025#deactivatePump_returnLabel#2 assume { :end_inline_deactivatePump } true; 916#L365-1 assume { :end_inline_processEnvironment } true; 917#L288-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret51#1, __utac_acc__Specification2_spec__2_#t~ret52#1, __utac_acc__Specification2_spec__2_~tmp~9#1, __utac_acc__Specification2_spec__2_~tmp___0~3#1;havoc __utac_acc__Specification2_spec__2_~tmp~9#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; 1152#isMethaneLevelCritical_returnLabel#2 __utac_acc__Specification2_spec__2_#t~ret51#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~9#1 := __utac_acc__Specification2_spec__2_#t~ret51#1;havoc __utac_acc__Specification2_spec__2_#t~ret51#1; 918#L896 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~9#1);~methAndRunningLastTime~0 := 0; 920#L896-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 1150#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1075#L212-2 [2022-12-13 19:10:41,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:10:41,795 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2022-12-13 19:10:41,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:10:41,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220672314] [2022-12-13 19:10:41,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:10:41,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:10:41,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 19:10:41,802 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 19:10:41,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 19:10:41,808 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 19:10:41,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:10:41,808 INFO L85 PathProgramCache]: Analyzing trace with hash -1274714957, now seen corresponding path program 1 times [2022-12-13 19:10:41,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:10:41,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125523714] [2022-12-13 19:10:41,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:10:41,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:10:41,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:10:41,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:10:41,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:10:41,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125523714] [2022-12-13 19:10:41,824 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125523714] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:10:41,824 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:10:41,824 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 19:10:41,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557783674] [2022-12-13 19:10:41,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:10:41,825 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-12-13 19:10:41,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:10:41,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 19:10:41,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 19:10:41,826 INFO L87 Difference]: Start difference. First operand 320 states and 434 transitions. cyclomatic complexity: 117 Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:10:41,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:10:41,904 INFO L93 Difference]: Finished difference Result 328 states and 422 transitions. [2022-12-13 19:10:41,904 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 328 states and 422 transitions. [2022-12-13 19:10:41,908 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 231 [2022-12-13 19:10:41,909 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 328 states to 328 states and 422 transitions. [2022-12-13 19:10:41,909 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 328 [2022-12-13 19:10:41,910 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 328 [2022-12-13 19:10:41,910 INFO L73 IsDeterministic]: Start isDeterministic. Operand 328 states and 422 transitions. [2022-12-13 19:10:41,911 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:10:41,911 INFO L218 hiAutomatonCegarLoop]: Abstraction has 328 states and 422 transitions. [2022-12-13 19:10:41,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states and 422 transitions. [2022-12-13 19:10:41,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 328. [2022-12-13 19:10:41,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 328 states have (on average 1.2865853658536586) internal successors, (422), 327 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:10:41,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 422 transitions. [2022-12-13 19:10:41,918 INFO L240 hiAutomatonCegarLoop]: Abstraction has 328 states and 422 transitions. [2022-12-13 19:10:41,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 19:10:41,919 INFO L428 stractBuchiCegarLoop]: Abstraction has 328 states and 422 transitions. [2022-12-13 19:10:41,919 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-12-13 19:10:41,919 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 328 states and 422 transitions. [2022-12-13 19:10:41,921 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 231 [2022-12-13 19:10:41,921 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 19:10:41,921 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 19:10:41,921 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:10:41,922 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] [2022-12-13 19:10:41,922 INFO L748 eck$LassoCheckResult]: Stem: 1748#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4; 1749#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; 1586#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1587#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 1676#valid_product_returnLabel#1 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; 1601#L1001 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 1602#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 1651#__utac_acc__Specification2_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet10#1, test_#t~nondet11#1, test_#t~nondet12#1, test_#t~nondet13#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1693#L212-2 [2022-12-13 19:10:41,922 INFO L750 eck$LassoCheckResult]: Loop: 1693#L212-2 assume !false; 1723#L213 assume test_~splverifierCounter~0#1 < 4; 1789#L214 test_~tmp~0#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1; 1671#L222 assume !(0 != test_~tmp~0#1); 1573#L222-2 test_~tmp___0~0#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1; 1574#L232 assume !(0 != test_~tmp___0~0#1); 1665#L232-2 test_~tmp___2~0#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1; 1666#L242 assume 0 != test_~tmp___2~0#1; 1727#L248-2 assume { :begin_inline_timeShift } true; 1742#L281 assume !(0 != ~pumpRunning~0); 1743#L281-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret16#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 1631#L365 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret15#1, processEnvironment__wrappee__lowWaterSensor_~tmp~2#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~2#1; 1632#L339-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret14#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 1677#L313-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret26#1, isHighWaterLevel_~retValue_acc~8#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~8#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~4#1;havoc isHighWaterSensorDry_~retValue_acc~4#1; 1678#L179-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~4#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~4#1; 1737#isHighWaterSensorDry_returnLabel#4 isHighWaterLevel_#t~ret26#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret26#1;havoc isHighWaterLevel_#t~ret26#1; 1675#L467-9 assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~1#1 := 0; 1603#L467-11 isHighWaterLevel_~retValue_acc~8#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~8#1; 1604#isHighWaterLevel_returnLabel#4 processEnvironment__wrappee__highWaterSensor_#t~ret14#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret14#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret14#1; 1724#L317-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1694#processEnvironment__wrappee__base_returnLabel#7 assume { :end_inline_processEnvironment__wrappee__base } true; 1695#L313-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1713#L339-3 assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 1563#L365-1 assume { :end_inline_processEnvironment } true; 1564#L288-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret51#1, __utac_acc__Specification2_spec__2_#t~ret52#1, __utac_acc__Specification2_spec__2_~tmp~9#1, __utac_acc__Specification2_spec__2_~tmp___0~3#1;havoc __utac_acc__Specification2_spec__2_~tmp~9#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; 1769#isMethaneLevelCritical_returnLabel#2 __utac_acc__Specification2_spec__2_#t~ret51#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~9#1 := __utac_acc__Specification2_spec__2_#t~ret51#1;havoc __utac_acc__Specification2_spec__2_#t~ret51#1; 1565#L896 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~9#1);~methAndRunningLastTime~0 := 0; 1567#L896-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 1868#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1693#L212-2 [2022-12-13 19:10:41,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:10:41,922 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2022-12-13 19:10:41,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:10:41,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923196974] [2022-12-13 19:10:41,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:10:41,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:10:41,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 19:10:41,928 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 19:10:41,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 19:10:41,933 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 19:10:41,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:10:41,934 INFO L85 PathProgramCache]: Analyzing trace with hash 2142103229, now seen corresponding path program 1 times [2022-12-13 19:10:41,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:10:41,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901960518] [2022-12-13 19:10:41,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:10:41,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:10:41,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 19:10:41,939 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 19:10:41,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 19:10:41,944 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 19:10:41,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:10:41,945 INFO L85 PathProgramCache]: Analyzing trace with hash -1246447500, now seen corresponding path program 1 times [2022-12-13 19:10:41,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:10:41,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185356264] [2022-12-13 19:10:41,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:10:41,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:10:41,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 19:10:41,953 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 19:10:41,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 19:10:41,962 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 19:10:42,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 19:10:42,762 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 19:10:42,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 19:10:42,798 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.12 07:10:42 BoogieIcfgContainer [2022-12-13 19:10:42,798 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-12-13 19:10:42,799 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 19:10:42,799 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 19:10:42,799 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 19:10:42,799 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:10:41" (3/4) ... [2022-12-13 19:10:42,801 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-12-13 19:10:42,833 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_351e1591-3a70-43f8-860e-41485f8f749c/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 19:10:42,833 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 19:10:42,834 INFO L158 Benchmark]: Toolchain (without parser) took 2878.16ms. Allocated memory was 188.7MB in the beginning and 241.2MB in the end (delta: 52.4MB). Free memory was 150.7MB in the beginning and 116.2MB in the end (delta: 34.5MB). Peak memory consumption was 88.6MB. Max. memory is 16.1GB. [2022-12-13 19:10:42,834 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 188.7MB. Free memory was 155.6MB in the beginning and 155.5MB in the end (delta: 16.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 19:10:42,834 INFO L158 Benchmark]: CACSL2BoogieTranslator took 345.31ms. Allocated memory is still 188.7MB. Free memory was 150.1MB in the beginning and 131.3MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-13 19:10:42,835 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.79ms. Allocated memory is still 188.7MB. Free memory was 131.3MB in the beginning and 127.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 19:10:42,835 INFO L158 Benchmark]: Boogie Preprocessor took 43.78ms. Allocated memory is still 188.7MB. Free memory was 127.1MB in the beginning and 124.1MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 19:10:42,835 INFO L158 Benchmark]: RCFGBuilder took 610.22ms. Allocated memory is still 188.7MB. Free memory was 123.5MB in the beginning and 90.0MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2022-12-13 19:10:42,835 INFO L158 Benchmark]: BuchiAutomizer took 1782.50ms. Allocated memory was 188.7MB in the beginning and 241.2MB in the end (delta: 52.4MB). Free memory was 90.0MB in the beginning and 119.4MB in the end (delta: -29.4MB). Peak memory consumption was 23.6MB. Max. memory is 16.1GB. [2022-12-13 19:10:42,836 INFO L158 Benchmark]: Witness Printer took 34.80ms. Allocated memory is still 241.2MB. Free memory was 119.4MB in the beginning and 116.2MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 19:10:42,837 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 188.7MB. Free memory was 155.6MB in the beginning and 155.5MB in the end (delta: 16.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 345.31ms. Allocated memory is still 188.7MB. Free memory was 150.1MB in the beginning and 131.3MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.79ms. Allocated memory is still 188.7MB. Free memory was 131.3MB in the beginning and 127.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.78ms. Allocated memory is still 188.7MB. Free memory was 127.1MB in the beginning and 124.1MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 610.22ms. Allocated memory is still 188.7MB. Free memory was 123.5MB in the beginning and 90.0MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 1782.50ms. Allocated memory was 188.7MB in the beginning and 241.2MB in the end (delta: 52.4MB). Free memory was 90.0MB in the beginning and 119.4MB in the end (delta: -29.4MB). Peak memory consumption was 23.6MB. Max. memory is 16.1GB. * Witness Printer took 34.80ms. Allocated memory is still 241.2MB. Free memory was 119.4MB in the beginning and 116.2MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 328 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.7s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 259 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1620 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1620 mSDsluCounter, 2167 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1528 mSDsCounter, 44 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 85 IncrementalHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 44 mSolverCounterUnsat, 639 mSDtfsCounter, 85 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 212]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L96] int waterLevel = 1; [L97] int methaneLevelCritical = 0; [L273] int pumpRunning = 0; [L274] int systemActive = 1; [L681] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L879] int methAndRunningLastTime ; [L918] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L992] int retValue_acc ; [L993] int tmp ; [L997] FCALL select_helpers() [L998] FCALL select_features() [L999] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L999] RET, EXPR valid_product() [L999] tmp = valid_product() [L1001] COND TRUE \read(tmp) [L1003] FCALL setup() [L1004] CALL runTest() [L985] CALL __utac_acc__Specification2_spec__1() [L884] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L985] RET __utac_acc__Specification2_spec__1() [L986] CALL test() [L203] int splverifierCounter ; [L204] int tmp ; [L205] int tmp___0 ; [L206] int tmp___1 ; [L207] int tmp___2 ; [L210] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L212] COND TRUE 1 [L214] COND TRUE splverifierCounter < 4 [L220] tmp = __VERIFIER_nondet_int() [L222] COND FALSE !(\read(tmp)) [L230] tmp___0 = __VERIFIER_nondet_int() [L232] COND FALSE !(\read(tmp___0)) [L240] tmp___2 = __VERIFIER_nondet_int() [L242] COND TRUE \read(tmp___2) [L257] CALL timeShift() [L281] COND FALSE !(\read(pumpRunning)) [L288] COND TRUE \read(systemActive) [L290] CALL processEnvironment() [L362] int tmp ; [L365] COND FALSE !(\read(pumpRunning)) [L380] CALL processEnvironment__wrappee__lowWaterSensor() [L336] int tmp ; [L339] COND FALSE !(\read(pumpRunning)) [L354] CALL processEnvironment__wrappee__highWaterSensor() [L310] int tmp ; [L313] COND TRUE ! pumpRunning [L315] CALL, EXPR isHighWaterLevel() [L459] int retValue_acc ; [L460] int tmp ; [L461] int tmp___0 ; [L465] CALL, EXPR isHighWaterSensorDry() [L176] int retValue_acc ; [L179] COND TRUE waterLevel < 2 [L180] retValue_acc = 1 [L181] return (retValue_acc); [L465] RET, EXPR isHighWaterSensorDry() [L465] tmp = isHighWaterSensorDry() [L467] COND TRUE \read(tmp) [L468] tmp___0 = 0 [L472] retValue_acc = tmp___0 [L473] return (retValue_acc); [L315] RET, EXPR isHighWaterLevel() [L315] tmp = isHighWaterLevel() [L317] COND FALSE !(\read(tmp)) [L323] FCALL processEnvironment__wrappee__base() [L354] RET processEnvironment__wrappee__highWaterSensor() [L380] RET processEnvironment__wrappee__lowWaterSensor() [L290] RET processEnvironment() [L296] CALL __utac_acc__Specification2_spec__2() [L889] int tmp ; [L890] int tmp___0 ; [L894] CALL, EXPR isMethaneLevelCritical() [L135] int retValue_acc ; [L138] retValue_acc = methaneLevelCritical [L139] return (retValue_acc); [L894] RET, EXPR isMethaneLevelCritical() [L894] tmp = isMethaneLevelCritical() [L896] COND FALSE !(\read(tmp)) [L912] methAndRunningLastTime = 0 [L296] RET __utac_acc__Specification2_spec__2() [L257] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 212]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L96] int waterLevel = 1; [L97] int methaneLevelCritical = 0; [L273] int pumpRunning = 0; [L274] int systemActive = 1; [L681] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L879] int methAndRunningLastTime ; [L918] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L992] int retValue_acc ; [L993] int tmp ; [L997] FCALL select_helpers() [L998] FCALL select_features() [L999] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L999] RET, EXPR valid_product() [L999] tmp = valid_product() [L1001] COND TRUE \read(tmp) [L1003] FCALL setup() [L1004] CALL runTest() [L985] CALL __utac_acc__Specification2_spec__1() [L884] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L985] RET __utac_acc__Specification2_spec__1() [L986] CALL test() [L203] int splverifierCounter ; [L204] int tmp ; [L205] int tmp___0 ; [L206] int tmp___1 ; [L207] int tmp___2 ; [L210] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L212] COND TRUE 1 [L214] COND TRUE splverifierCounter < 4 [L220] tmp = __VERIFIER_nondet_int() [L222] COND FALSE !(\read(tmp)) [L230] tmp___0 = __VERIFIER_nondet_int() [L232] COND FALSE !(\read(tmp___0)) [L240] tmp___2 = __VERIFIER_nondet_int() [L242] COND TRUE \read(tmp___2) [L257] CALL timeShift() [L281] COND FALSE !(\read(pumpRunning)) [L288] COND TRUE \read(systemActive) [L290] CALL processEnvironment() [L362] int tmp ; [L365] COND FALSE !(\read(pumpRunning)) [L380] CALL processEnvironment__wrappee__lowWaterSensor() [L336] int tmp ; [L339] COND FALSE !(\read(pumpRunning)) [L354] CALL processEnvironment__wrappee__highWaterSensor() [L310] int tmp ; [L313] COND TRUE ! pumpRunning [L315] CALL, EXPR isHighWaterLevel() [L459] int retValue_acc ; [L460] int tmp ; [L461] int tmp___0 ; [L465] CALL, EXPR isHighWaterSensorDry() [L176] int retValue_acc ; [L179] COND TRUE waterLevel < 2 [L180] retValue_acc = 1 [L181] return (retValue_acc); [L465] RET, EXPR isHighWaterSensorDry() [L465] tmp = isHighWaterSensorDry() [L467] COND TRUE \read(tmp) [L468] tmp___0 = 0 [L472] retValue_acc = tmp___0 [L473] return (retValue_acc); [L315] RET, EXPR isHighWaterLevel() [L315] tmp = isHighWaterLevel() [L317] COND FALSE !(\read(tmp)) [L323] FCALL processEnvironment__wrappee__base() [L354] RET processEnvironment__wrappee__highWaterSensor() [L380] RET processEnvironment__wrappee__lowWaterSensor() [L290] RET processEnvironment() [L296] CALL __utac_acc__Specification2_spec__2() [L889] int tmp ; [L890] int tmp___0 ; [L894] CALL, EXPR isMethaneLevelCritical() [L135] int retValue_acc ; [L138] retValue_acc = methaneLevelCritical [L139] return (retValue_acc); [L894] RET, EXPR isMethaneLevelCritical() [L894] tmp = isMethaneLevelCritical() [L896] COND FALSE !(\read(tmp)) [L912] methAndRunningLastTime = 0 [L296] RET __utac_acc__Specification2_spec__2() [L257] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-12-13 19:10:42,869 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_351e1591-3a70-43f8-860e-41485f8f749c/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)