./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product64.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23cbaa4-c184-4728-8d81-72bddf771b9b/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23cbaa4-c184-4728-8d81-72bddf771b9b/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_e23cbaa4-c184-4728-8d81-72bddf771b9b/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23cbaa4-c184-4728-8d81-72bddf771b9b/bin/uautomizer-uyxdKDjOR8/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product64.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23cbaa4-c184-4728-8d81-72bddf771b9b/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_e23cbaa4-c184-4728-8d81-72bddf771b9b/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 323b2112d56f35ec9fc5a7837411d8e54d2d46e3d8981d77e080eaf0dd99497b --- 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 21:23:45,412 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 21:23:45,414 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 21:23:45,433 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 21:23:45,434 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 21:23:45,435 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 21:23:45,436 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 21:23:45,438 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 21:23:45,439 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 21:23:45,440 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 21:23:45,441 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 21:23:45,442 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 21:23:45,443 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 21:23:45,444 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 21:23:45,445 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 21:23:45,446 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 21:23:45,447 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 21:23:45,448 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 21:23:45,450 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 21:23:45,451 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 21:23:45,453 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 21:23:45,454 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 21:23:45,455 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 21:23:45,456 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 21:23:45,460 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 21:23:45,460 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 21:23:45,460 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 21:23:45,461 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 21:23:45,462 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 21:23:45,462 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 21:23:45,463 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 21:23:45,464 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 21:23:45,464 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 21:23:45,465 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 21:23:45,466 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 21:23:45,466 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 21:23:45,467 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 21:23:45,467 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 21:23:45,467 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 21:23:45,468 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 21:23:45,468 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 21:23:45,469 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23cbaa4-c184-4728-8d81-72bddf771b9b/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-12-13 21:23:45,491 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 21:23:45,491 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 21:23:45,491 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 21:23:45,491 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 21:23:45,492 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 21:23:45,493 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 21:23:45,493 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 21:23:45,493 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-12-13 21:23:45,493 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-12-13 21:23:45,493 INFO L138 SettingsManager]: * Use old map elimination=false [2022-12-13 21:23:45,494 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-12-13 21:23:45,494 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-12-13 21:23:45,494 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-12-13 21:23:45,494 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 21:23:45,494 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 21:23:45,495 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 21:23:45,495 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 21:23:45,495 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 21:23:45,495 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 21:23:45,495 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-12-13 21:23:45,496 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-12-13 21:23:45,496 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-12-13 21:23:45,496 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 21:23:45,496 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 21:23:45,496 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-12-13 21:23:45,496 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 21:23:45,497 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-12-13 21:23:45,497 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 21:23:45,497 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 21:23:45,497 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 21:23:45,498 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 21:23:45,499 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-12-13 21:23:45,499 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_e23cbaa4-c184-4728-8d81-72bddf771b9b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23cbaa4-c184-4728-8d81-72bddf771b9b/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 323b2112d56f35ec9fc5a7837411d8e54d2d46e3d8981d77e080eaf0dd99497b [2022-12-13 21:23:45,703 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 21:23:45,723 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 21:23:45,725 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 21:23:45,726 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 21:23:45,727 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 21:23:45,728 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23cbaa4-c184-4728-8d81-72bddf771b9b/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/product-lines/minepump_spec5_product64.cil.c [2022-12-13 21:23:48,276 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 21:23:48,446 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 21:23:48,446 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23cbaa4-c184-4728-8d81-72bddf771b9b/sv-benchmarks/c/product-lines/minepump_spec5_product64.cil.c [2022-12-13 21:23:48,458 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23cbaa4-c184-4728-8d81-72bddf771b9b/bin/uautomizer-uyxdKDjOR8/data/f427d9a7a/add5e67365f641d99f2f97164c66d37f/FLAG86bf66ed1 [2022-12-13 21:23:48,471 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23cbaa4-c184-4728-8d81-72bddf771b9b/bin/uautomizer-uyxdKDjOR8/data/f427d9a7a/add5e67365f641d99f2f97164c66d37f [2022-12-13 21:23:48,474 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 21:23:48,475 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 21:23:48,476 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 21:23:48,476 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 21:23:48,478 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 21:23:48,479 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:23:48" (1/1) ... [2022-12-13 21:23:48,480 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@180cf059 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:23:48, skipping insertion in model container [2022-12-13 21:23:48,480 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:23:48" (1/1) ... [2022-12-13 21:23:48,485 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 21:23:48,522 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 21:23:48,695 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_e23cbaa4-c184-4728-8d81-72bddf771b9b/sv-benchmarks/c/product-lines/minepump_spec5_product64.cil.c[9626,9639] [2022-12-13 21:23:48,743 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:23:48,755 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 21:23:48,784 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_e23cbaa4-c184-4728-8d81-72bddf771b9b/sv-benchmarks/c/product-lines/minepump_spec5_product64.cil.c[9626,9639] [2022-12-13 21:23:48,813 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:23:48,828 INFO L208 MainTranslator]: Completed translation [2022-12-13 21:23:48,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:23:48 WrapperNode [2022-12-13 21:23:48,829 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 21:23:48,829 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 21:23:48,830 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 21:23:48,830 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 21:23:48,835 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:23:48" (1/1) ... [2022-12-13 21:23:48,846 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:23:48" (1/1) ... [2022-12-13 21:23:48,892 INFO L138 Inliner]: procedures = 61, calls = 110, calls flagged for inlining = 63, calls inlined = 183, statements flattened = 1247 [2022-12-13 21:23:48,892 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 21:23:48,893 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 21:23:48,893 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 21:23:48,893 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 21:23:48,901 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:23:48" (1/1) ... [2022-12-13 21:23:48,902 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:23:48" (1/1) ... [2022-12-13 21:23:48,907 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:23:48" (1/1) ... [2022-12-13 21:23:48,907 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:23:48" (1/1) ... [2022-12-13 21:23:48,923 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:23:48" (1/1) ... [2022-12-13 21:23:48,932 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:23:48" (1/1) ... [2022-12-13 21:23:48,934 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:23:48" (1/1) ... [2022-12-13 21:23:48,938 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:23:48" (1/1) ... [2022-12-13 21:23:48,943 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 21:23:48,943 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 21:23:48,944 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 21:23:48,944 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 21:23:48,945 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:23:48" (1/1) ... [2022-12-13 21:23:48,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:23:48,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23cbaa4-c184-4728-8d81-72bddf771b9b/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:23:48,976 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23cbaa4-c184-4728-8d81-72bddf771b9b/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:23:48,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23cbaa4-c184-4728-8d81-72bddf771b9b/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-12-13 21:23:49,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 21:23:49,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 21:23:49,008 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 21:23:49,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 21:23:49,082 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 21:23:49,084 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 21:23:49,599 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 21:23:49,606 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 21:23:49,606 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-13 21:23:49,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:23:49 BoogieIcfgContainer [2022-12-13 21:23:49,608 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 21:23:49,609 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-12-13 21:23:49,609 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-12-13 21:23:49,612 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-12-13 21:23:49,613 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 21:23:49,613 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.12 09:23:48" (1/3) ... [2022-12-13 21:23:49,613 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@70650222 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 09:23:49, skipping insertion in model container [2022-12-13 21:23:49,613 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 21:23:49,614 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:23:48" (2/3) ... [2022-12-13 21:23:49,614 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@70650222 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 09:23:49, skipping insertion in model container [2022-12-13 21:23:49,614 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 21:23:49,614 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:23:49" (3/3) ... [2022-12-13 21:23:49,615 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product64.cil.c [2022-12-13 21:23:49,664 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-12-13 21:23:49,664 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-12-13 21:23:49,664 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-12-13 21:23:49,664 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-12-13 21:23:49,664 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-12-13 21:23:49,664 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-12-13 21:23:49,665 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-12-13 21:23:49,665 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-12-13 21:23:49,669 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 333 states, 332 states have (on average 1.3493975903614457) internal successors, (448), 332 states have internal predecessors, (448), 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 21:23:49,689 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 219 [2022-12-13 21:23:49,689 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 21:23:49,689 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 21:23:49,694 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:23:49,694 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] [2022-12-13 21:23:49,695 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-12-13 21:23:49,695 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 333 states, 332 states have (on average 1.3493975903614457) internal successors, (448), 332 states have internal predecessors, (448), 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 21:23:49,702 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 219 [2022-12-13 21:23:49,702 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 21:23:49,702 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 21:23:49,702 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:23:49,702 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] [2022-12-13 21:23:49,706 INFO L748 eck$LassoCheckResult]: Stem: 183#$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);~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 198#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret31#1, main_~retValue_acc~8#1, main_~tmp~8#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 24#select_helpers_returnLabel#1true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 290#select_features_returnLabel#1true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 108#valid_product_returnLabel#1true main_#t~ret31#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret31#1;havoc main_#t~ret31#1; 30#L640true assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 82#setup_returnLabel#1true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 313#__utac_acc__Specification5_spec__1_returnLabel#1true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet7#1, test_#t~nondet8#1, test_#t~nondet9#1, test_#t~nondet10#1, test_~splverifierCounter~0#1, test_~tmp~1#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~1#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 69#L118-2true [2022-12-13 21:23:49,707 INFO L750 eck$LassoCheckResult]: Loop: 69#L118-2true assume !false; 315#L119true assume test_~splverifierCounter~0#1 < 4; 208#L120true test_~tmp~1#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; 223#L128true assume !(0 != test_~tmp~1#1); 334#L128-2true test_~tmp___0~1#1 := test_#t~nondet8#1;havoc test_#t~nondet8#1; 236#L138true assume !(0 != test_~tmp___0~1#1); 275#L138-2true test_~tmp___2~0#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1; 29#L148true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 62#startSystem_returnLabel#1true assume { :end_inline_startSystem } true; 193#L156-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret4#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 304#isPumpRunning_returnLabel#1true __utac_acc__Specification5_spec__2_#t~ret4#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret4#1;havoc __utac_acc__Specification5_spec__2_#t~ret4#1; 261#__utac_acc__Specification5_spec__2_returnLabel#1true assume { :end_inline___utac_acc__Specification5_spec__2 } true; 123#L195true assume !(0 != ~pumpRunning~0); 88#L195-2true assume !(0 != ~systemActive~0); 120#L202-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret5#1, __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~0#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; 233#getWaterLevel_returnLabel#1true __utac_acc__Specification5_spec__3_#t~ret5#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0#1 := __utac_acc__Specification5_spec__3_#t~ret5#1;havoc __utac_acc__Specification5_spec__3_#t~ret5#1; 158#L80true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0#1); 307#L80-1true assume { :end_inline___utac_acc__Specification5_spec__3 } true; 234#timeShift_returnLabel#1true assume { :end_inline_timeShift } true; 69#L118-2true [2022-12-13 21:23:49,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:23:49,710 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2022-12-13 21:23:49,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:23:49,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802816921] [2022-12-13 21:23:49,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:23:49,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:23:49,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:23:49,778 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:23:49,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:23:49,801 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:23:49,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:23:49,804 INFO L85 PathProgramCache]: Analyzing trace with hash 483876203, now seen corresponding path program 1 times [2022-12-13 21:23:49,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:23:49,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119481067] [2022-12-13 21:23:49,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:23:49,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:23:49,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:23:49,859 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 21:23:49,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:23:49,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119481067] [2022-12-13 21:23:49,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119481067] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:23:49,860 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:23:49,861 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 21:23:49,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436913429] [2022-12-13 21:23:49,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:23:49,864 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-12-13 21:23:49,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:23:49,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:23:49,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:23:49,888 INFO L87 Difference]: Start difference. First operand has 333 states, 332 states have (on average 1.3493975903614457) internal successors, (448), 332 states have internal predecessors, (448), 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 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 21:23:49,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:23:49,956 INFO L93 Difference]: Finished difference Result 650 states and 862 transitions. [2022-12-13 21:23:49,958 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 650 states and 862 transitions. [2022-12-13 21:23:49,964 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 428 [2022-12-13 21:23:49,969 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 650 states to 630 states and 841 transitions. [2022-12-13 21:23:49,970 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 630 [2022-12-13 21:23:49,972 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 630 [2022-12-13 21:23:49,972 INFO L73 IsDeterministic]: Start isDeterministic. Operand 630 states and 841 transitions. [2022-12-13 21:23:49,974 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:23:49,974 INFO L218 hiAutomatonCegarLoop]: Abstraction has 630 states and 841 transitions. [2022-12-13 21:23:49,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states and 841 transitions. [2022-12-13 21:23:50,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 627. [2022-12-13 21:23:50,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 627 states, 627 states have (on average 1.3349282296650717) internal successors, (837), 626 states have internal predecessors, (837), 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 21:23:50,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 627 states to 627 states and 837 transitions. [2022-12-13 21:23:50,009 INFO L240 hiAutomatonCegarLoop]: Abstraction has 627 states and 837 transitions. [2022-12-13 21:23:50,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:23:50,013 INFO L428 stractBuchiCegarLoop]: Abstraction has 627 states and 837 transitions. [2022-12-13 21:23:50,013 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-12-13 21:23:50,013 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 627 states and 837 transitions. [2022-12-13 21:23:50,016 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 425 [2022-12-13 21:23:50,016 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 21:23:50,016 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 21:23:50,017 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:23:50,017 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] [2022-12-13 21:23:50,017 INFO L748 eck$LassoCheckResult]: Stem: 1257#$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);~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 1258#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret31#1, main_~retValue_acc~8#1, main_~tmp~8#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 1039#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1040#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 1187#valid_product_returnLabel#1 main_#t~ret31#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret31#1;havoc main_#t~ret31#1; 1050#L640 assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 1051#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 1147#__utac_acc__Specification5_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet7#1, test_#t~nondet8#1, test_#t~nondet9#1, test_#t~nondet10#1, test_~splverifierCounter~0#1, test_~tmp~1#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~1#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1325#L118-2 [2022-12-13 21:23:50,017 INFO L750 eck$LassoCheckResult]: Loop: 1325#L118-2 assume !false; 1398#L119 assume test_~splverifierCounter~0#1 < 4; 1399#L120 test_~tmp~1#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; 1577#L128 assume !(0 != test_~tmp~1#1); 1575#L128-2 test_~tmp___0~1#1 := test_#t~nondet8#1;havoc test_#t~nondet8#1; 1573#L138 assume !(0 != test_~tmp___0~1#1); 1571#L138-2 test_~tmp___2~0#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1; 1570#L148 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1; 1569#L156 assume !(0 != test_~tmp___1~0#1); 1114#L156-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret4#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 1568#isPumpRunning_returnLabel#1 __utac_acc__Specification5_spec__2_#t~ret4#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret4#1;havoc __utac_acc__Specification5_spec__2_#t~ret4#1; 1567#__utac_acc__Specification5_spec__2_returnLabel#1 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 1565#L195 assume !(0 != ~pumpRunning~0); 1562#L195-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret13#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1; 1559#L279 assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret15#1, isMethaneAlarm_~retValue_acc~0#1;havoc isMethaneAlarm_~retValue_acc~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;isMethaneLevelCritical_~retValue_acc~4#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; 1560#isMethaneLevelCritical_returnLabel#1 isMethaneAlarm_#t~ret15#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~0#1 := isMethaneAlarm_#t~ret15#1;havoc isMethaneAlarm_#t~ret15#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~0#1; 1563#isMethaneAlarm_returnLabel#1 processEnvironment_#t~ret13#1 := isMethaneAlarm_#res#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~4#1 := processEnvironment_#t~ret13#1;havoc processEnvironment_#t~ret13#1; 1561#L283 assume 0 != processEnvironment_~tmp~4#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; 1525#deactivatePump_returnLabel#2 assume { :end_inline_deactivatePump } true; 1522#L279-1 assume { :end_inline_processEnvironment } true; 1521#L202-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret5#1, __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~0#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; 1409#getWaterLevel_returnLabel#1 __utac_acc__Specification5_spec__3_#t~ret5#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0#1 := __utac_acc__Specification5_spec__3_#t~ret5#1;havoc __utac_acc__Specification5_spec__3_#t~ret5#1; 1404#L80 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0#1); 1401#L80-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 1400#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1325#L118-2 [2022-12-13 21:23:50,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:23:50,018 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2022-12-13 21:23:50,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:23:50,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492794645] [2022-12-13 21:23:50,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:23:50,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:23:50,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:23:50,029 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:23:50,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:23:50,036 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:23:50,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:23:50,037 INFO L85 PathProgramCache]: Analyzing trace with hash -1562575902, now seen corresponding path program 1 times [2022-12-13 21:23:50,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:23:50,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14328650] [2022-12-13 21:23:50,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:23:50,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:23:50,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:23:50,058 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 21:23:50,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:23:50,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14328650] [2022-12-13 21:23:50,059 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14328650] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:23:50,059 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:23:50,059 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 21:23:50,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489722266] [2022-12-13 21:23:50,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:23:50,059 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-12-13 21:23:50,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:23:50,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:23:50,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:23:50,060 INFO L87 Difference]: Start difference. First operand 627 states and 837 transitions. cyclomatic complexity: 213 Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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 21:23:50,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:23:50,147 INFO L93 Difference]: Finished difference Result 661 states and 840 transitions. [2022-12-13 21:23:50,147 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 661 states and 840 transitions. [2022-12-13 21:23:50,150 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 459 [2022-12-13 21:23:50,152 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 661 states to 661 states and 840 transitions. [2022-12-13 21:23:50,152 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 661 [2022-12-13 21:23:50,153 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 661 [2022-12-13 21:23:50,153 INFO L73 IsDeterministic]: Start isDeterministic. Operand 661 states and 840 transitions. [2022-12-13 21:23:50,154 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:23:50,154 INFO L218 hiAutomatonCegarLoop]: Abstraction has 661 states and 840 transitions. [2022-12-13 21:23:50,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 661 states and 840 transitions. [2022-12-13 21:23:50,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 661 to 661. [2022-12-13 21:23:50,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 661 states, 661 states have (on average 1.2708018154311649) internal successors, (840), 660 states have internal predecessors, (840), 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 21:23:50,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 840 transitions. [2022-12-13 21:23:50,167 INFO L240 hiAutomatonCegarLoop]: Abstraction has 661 states and 840 transitions. [2022-12-13 21:23:50,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:23:50,168 INFO L428 stractBuchiCegarLoop]: Abstraction has 661 states and 840 transitions. [2022-12-13 21:23:50,168 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-12-13 21:23:50,168 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 661 states and 840 transitions. [2022-12-13 21:23:50,170 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 459 [2022-12-13 21:23:50,170 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 21:23:50,171 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 21:23:50,171 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:23:50,171 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, 1, 1] [2022-12-13 21:23:50,171 INFO L748 eck$LassoCheckResult]: Stem: 2504#$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);~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 2505#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret31#1, main_~retValue_acc~8#1, main_~tmp~8#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 2313#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2314#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 2429#valid_product_returnLabel#1 main_#t~ret31#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret31#1;havoc main_#t~ret31#1; 2324#L640 assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 2325#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 2398#__utac_acc__Specification5_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet7#1, test_#t~nondet8#1, test_#t~nondet9#1, test_#t~nondet10#1, test_~splverifierCounter~0#1, test_~tmp~1#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~1#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2385#L118-2 [2022-12-13 21:23:50,171 INFO L750 eck$LassoCheckResult]: Loop: 2385#L118-2 assume !false; 2386#L119 assume test_~splverifierCounter~0#1 < 4; 2603#L120 test_~tmp~1#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; 2541#L128 assume !(0 != test_~tmp~1#1); 2516#L128-2 test_~tmp___0~1#1 := test_#t~nondet8#1;havoc test_#t~nondet8#1; 2558#L138 assume !(0 != test_~tmp___0~1#1); 2559#L138-2 test_~tmp___2~0#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1; 2321#L148 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 2322#startSystem_returnLabel#1 assume { :end_inline_startSystem } true; 2380#L156-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret4#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 2597#isPumpRunning_returnLabel#1 __utac_acc__Specification5_spec__2_#t~ret4#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret4#1;havoc __utac_acc__Specification5_spec__2_#t~ret4#1; 2598#__utac_acc__Specification5_spec__2_returnLabel#1 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 2445#L195 assume !(0 != ~pumpRunning~0); 2408#L195-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret13#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1; 2381#L279 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret12#1, processEnvironment__wrappee__methaneQuery_~tmp~3#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~3#1; 2382#L253-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret11#1, processEnvironment__wrappee__highWaterSensor_~tmp~2#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2#1; 2562#L227-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret24#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~6#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;havoc isHighWaterSensorDry_~retValue_acc~6#1; 2563#L534-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; 2584#isHighWaterSensorDry_returnLabel#4 isHighWaterLevel_#t~ret24#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret24#1;havoc isHighWaterLevel_#t~ret24#1; 2534#L398-9 assume 0 != isHighWaterLevel_~tmp~6#1;isHighWaterLevel_~tmp___0~2#1 := 0; 2535#L398-11 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 2522#isHighWaterLevel_returnLabel#4 processEnvironment__wrappee__highWaterSensor_#t~ret11#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~2#1 := processEnvironment__wrappee__highWaterSensor_#t~ret11#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret11#1; 2350#L231-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~2#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2352#processEnvironment__wrappee__base_returnLabel#7 assume { :end_inline_processEnvironment__wrappee__base } true; 2446#L227-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 2461#L253-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 2312#L279-1 assume { :end_inline_processEnvironment } true; 2608#L202-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret5#1, __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~0#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; 2553#getWaterLevel_returnLabel#1 __utac_acc__Specification5_spec__3_#t~ret5#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0#1 := __utac_acc__Specification5_spec__3_#t~ret5#1;havoc __utac_acc__Specification5_spec__3_#t~ret5#1; 2554#L80 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0#1); 2743#L80-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 2555#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 2385#L118-2 [2022-12-13 21:23:50,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:23:50,172 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2022-12-13 21:23:50,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:23:50,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113574104] [2022-12-13 21:23:50,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:23:50,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:23:50,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:23:50,179 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:23:50,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:23:50,186 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:23:50,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:23:50,186 INFO L85 PathProgramCache]: Analyzing trace with hash -2103481522, now seen corresponding path program 1 times [2022-12-13 21:23:50,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:23:50,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095500185] [2022-12-13 21:23:50,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:23:50,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:23:50,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:23:50,262 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 21:23:50,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:23:50,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095500185] [2022-12-13 21:23:50,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095500185] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:23:50,263 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:23:50,263 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 21:23:50,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785722048] [2022-12-13 21:23:50,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:23:50,263 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-12-13 21:23:50,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:23:50,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 21:23:50,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 21:23:50,264 INFO L87 Difference]: Start difference. First operand 661 states and 840 transitions. cyclomatic complexity: 182 Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 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 21:23:50,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:23:50,504 INFO L93 Difference]: Finished difference Result 3299 states and 4163 transitions. [2022-12-13 21:23:50,504 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 3299 states and 4163 transitions. [2022-12-13 21:23:50,516 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 2262 [2022-12-13 21:23:50,525 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 3299 states to 3299 states and 4163 transitions. [2022-12-13 21:23:50,525 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3299 [2022-12-13 21:23:50,527 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3299 [2022-12-13 21:23:50,527 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3299 states and 4163 transitions. [2022-12-13 21:23:50,530 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:23:50,530 INFO L218 hiAutomatonCegarLoop]: Abstraction has 3299 states and 4163 transitions. [2022-12-13 21:23:50,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3299 states and 4163 transitions. [2022-12-13 21:23:50,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3299 to 1308. [2022-12-13 21:23:50,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1308 states, 1308 states have (on average 1.2599388379204892) internal successors, (1648), 1307 states have internal predecessors, (1648), 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 21:23:50,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1308 states to 1308 states and 1648 transitions. [2022-12-13 21:23:50,554 INFO L240 hiAutomatonCegarLoop]: Abstraction has 1308 states and 1648 transitions. [2022-12-13 21:23:50,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 21:23:50,555 INFO L428 stractBuchiCegarLoop]: Abstraction has 1308 states and 1648 transitions. [2022-12-13 21:23:50,556 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-12-13 21:23:50,556 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1308 states and 1648 transitions. [2022-12-13 21:23:50,559 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 914 [2022-12-13 21:23:50,560 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 21:23:50,560 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 21:23:50,561 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:23:50,561 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, 1, 1, 1, 1] [2022-12-13 21:23:50,561 INFO L748 eck$LassoCheckResult]: Stem: 6478#$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);~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 6479#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret31#1, main_~retValue_acc~8#1, main_~tmp~8#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 6290#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 6291#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 6410#valid_product_returnLabel#1 main_#t~ret31#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret31#1;havoc main_#t~ret31#1; 6302#L640 assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 6303#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 6378#__utac_acc__Specification5_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet7#1, test_#t~nondet8#1, test_#t~nondet9#1, test_#t~nondet10#1, test_~splverifierCounter~0#1, test_~tmp~1#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~1#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 6558#L118-2 [2022-12-13 21:23:50,561 INFO L750 eck$LassoCheckResult]: Loop: 6558#L118-2 assume !false; 6883#L119 assume test_~splverifierCounter~0#1 < 4; 6882#L120 test_~tmp~1#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; 6880#L128 assume !(0 != test_~tmp~1#1); 6878#L128-2 test_~tmp___0~1#1 := test_#t~nondet8#1;havoc test_#t~nondet8#1; 6876#L138 assume !(0 != test_~tmp___0~1#1); 6874#L138-2 test_~tmp___2~0#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1; 6873#L148 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 6353#startSystem_returnLabel#1 assume { :end_inline_startSystem } true; 6354#L156-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret4#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 6489#isPumpRunning_returnLabel#1 __utac_acc__Specification5_spec__2_#t~ret4#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret4#1;havoc __utac_acc__Specification5_spec__2_#t~ret4#1; 6538#__utac_acc__Specification5_spec__2_returnLabel#1 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 6425#L195 assume !(0 != ~pumpRunning~0); 6388#L195-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret13#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1; 6360#L279 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret12#1, processEnvironment__wrappee__methaneQuery_~tmp~3#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~3#1; 6361#L253-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret11#1, processEnvironment__wrappee__highWaterSensor_~tmp~2#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2#1; 6526#L227-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret24#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~6#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;havoc isHighWaterSensorDry_~retValue_acc~6#1; 6527#L534-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; 6540#isHighWaterSensorDry_returnLabel#4 isHighWaterLevel_#t~ret24#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret24#1;havoc isHighWaterLevel_#t~ret24#1; 6507#L398-9 assume 0 != isHighWaterLevel_~tmp~6#1;isHighWaterLevel_~tmp___0~2#1 := 0; 6508#L398-11 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 6493#isHighWaterLevel_returnLabel#4 processEnvironment__wrappee__highWaterSensor_#t~ret11#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~2#1 := processEnvironment__wrappee__highWaterSensor_#t~ret11#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret11#1; 6324#L231-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~2#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 6326#processEnvironment__wrappee__base_returnLabel#7 assume { :end_inline_processEnvironment__wrappee__base } true; 6426#L227-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 6439#L253-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 6289#L279-1 assume { :end_inline_processEnvironment } true; 6422#L202-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret5#1, __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~0#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; 6423#getWaterLevel_returnLabel#1 __utac_acc__Specification5_spec__3_#t~ret5#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0#1 := __utac_acc__Specification5_spec__3_#t~ret5#1;havoc __utac_acc__Specification5_spec__3_#t~ret5#1; 6450#L80 assume 2 != __utac_acc__Specification5_spec__3_~tmp~0#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 6451#isPumpRunning_returnLabel#2 __utac_acc__Specification5_spec__3_#t~ret6#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~0#1 := __utac_acc__Specification5_spec__3_#t~ret6#1;havoc __utac_acc__Specification5_spec__3_#t~ret6#1; 6525#L84 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0#1); 6886#L80-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 6885#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 6558#L118-2 [2022-12-13 21:23:50,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:23:50,562 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2022-12-13 21:23:50,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:23:50,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531676814] [2022-12-13 21:23:50,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:23:50,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:23:50,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:23:50,570 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:23:50,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:23:50,579 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:23:50,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:23:50,580 INFO L85 PathProgramCache]: Analyzing trace with hash 1464763049, now seen corresponding path program 1 times [2022-12-13 21:23:50,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:23:50,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540208096] [2022-12-13 21:23:50,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:23:50,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:23:50,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:23:50,588 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:23:50,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:23:50,598 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:23:50,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:23:50,599 INFO L85 PathProgramCache]: Analyzing trace with hash -769053870, now seen corresponding path program 1 times [2022-12-13 21:23:50,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:23:50,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378207905] [2022-12-13 21:23:50,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:23:50,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:23:50,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:23:50,611 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:23:50,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:23:50,627 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:23:51,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:23:51,461 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:23:51,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:23:51,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.12 09:23:51 BoogieIcfgContainer [2022-12-13 21:23:51,506 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-12-13 21:23:51,507 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 21:23:51,507 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 21:23:51,507 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 21:23:51,507 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:23:49" (3/4) ... [2022-12-13 21:23:51,509 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-12-13 21:23:51,543 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23cbaa4-c184-4728-8d81-72bddf771b9b/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 21:23:51,544 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 21:23:51,544 INFO L158 Benchmark]: Toolchain (without parser) took 3069.26ms. Allocated memory was 117.4MB in the beginning and 155.2MB in the end (delta: 37.7MB). Free memory was 80.8MB in the beginning and 48.1MB in the end (delta: 32.7MB). Peak memory consumption was 72.6MB. Max. memory is 16.1GB. [2022-12-13 21:23:51,544 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 117.4MB. Free memory is still 93.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 21:23:51,545 INFO L158 Benchmark]: CACSL2BoogieTranslator took 353.04ms. Allocated memory is still 117.4MB. Free memory was 80.8MB in the beginning and 61.6MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-13 21:23:51,545 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.84ms. Allocated memory is still 117.4MB. Free memory was 61.6MB in the beginning and 56.3MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-12-13 21:23:51,545 INFO L158 Benchmark]: Boogie Preprocessor took 50.00ms. Allocated memory is still 117.4MB. Free memory was 56.3MB in the beginning and 52.5MB in the end (delta: 3.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 21:23:51,545 INFO L158 Benchmark]: RCFGBuilder took 665.05ms. Allocated memory was 117.4MB in the beginning and 155.2MB in the end (delta: 37.7MB). Free memory was 52.5MB in the beginning and 91.9MB in the end (delta: -39.4MB). Peak memory consumption was 18.4MB. Max. memory is 16.1GB. [2022-12-13 21:23:51,546 INFO L158 Benchmark]: BuchiAutomizer took 1897.05ms. Allocated memory is still 155.2MB. Free memory was 91.1MB in the beginning and 51.2MB in the end (delta: 39.9MB). Peak memory consumption was 39.5MB. Max. memory is 16.1GB. [2022-12-13 21:23:51,546 INFO L158 Benchmark]: Witness Printer took 37.17ms. Allocated memory is still 155.2MB. Free memory was 51.2MB in the beginning and 48.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 21:23:51,547 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 117.4MB. Free memory is still 93.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 353.04ms. Allocated memory is still 117.4MB. Free memory was 80.8MB in the beginning and 61.6MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.84ms. Allocated memory is still 117.4MB. Free memory was 61.6MB in the beginning and 56.3MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.00ms. Allocated memory is still 117.4MB. Free memory was 56.3MB in the beginning and 52.5MB in the end (delta: 3.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 665.05ms. Allocated memory was 117.4MB in the beginning and 155.2MB in the end (delta: 37.7MB). Free memory was 52.5MB in the beginning and 91.9MB in the end (delta: -39.4MB). Peak memory consumption was 18.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1897.05ms. Allocated memory is still 155.2MB. Free memory was 91.1MB in the beginning and 51.2MB in the end (delta: 39.9MB). Peak memory consumption was 39.5MB. Max. memory is 16.1GB. * Witness Printer took 37.17ms. Allocated memory is still 155.2MB. Free memory was 51.2MB in the beginning and 48.1MB in the end (delta: 3.1MB). 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 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 1308 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.8s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 1.2s. Construction of modules took 0.2s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 1994 StatesRemovedByMinimization, 2 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, 2387 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2387 mSDsluCounter, 3679 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2296 mSDsCounter, 63 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 247 IncrementalHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 63 mSolverCounterUnsat, 1383 mSDtfsCounter, 247 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI3 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: 118]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L53] int switchedOnBeforeTS ; [L185] int pumpRunning = 0; [L186] int systemActive = 1; [L451] int waterLevel = 1; [L452] int methaneLevelCritical = 0; [L554] int cleanupTimeShifts = 4; [L867] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L631] int retValue_acc ; [L632] int tmp ; [L636] FCALL select_helpers() [L637] FCALL select_features() [L638] CALL, EXPR valid_product() [L689] int retValue_acc ; [L692] retValue_acc = 1 [L693] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L638] RET, EXPR valid_product() [L638] tmp = valid_product() [L640] COND TRUE \read(tmp) [L642] FCALL setup() [L643] CALL runTest() [L621] CALL __utac_acc__Specification5_spec__1() [L58] switchedOnBeforeTS = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L621] RET __utac_acc__Specification5_spec__1() [L622] CALL test() [L109] int splverifierCounter ; [L110] int tmp ; [L111] int tmp___0 ; [L112] int tmp___1 ; [L113] int tmp___2 ; [L116] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] Loop: [L118] COND TRUE 1 [L120] COND TRUE splverifierCounter < 4 [L126] tmp = __VERIFIER_nondet_int() [L128] COND FALSE !(\read(tmp)) [L136] tmp___0 = __VERIFIER_nondet_int() [L138] COND FALSE !(\read(tmp___0)) [L146] tmp___2 = __VERIFIER_nondet_int() [L148] COND TRUE \read(tmp___2) [L150] CALL startSystem() [L446] systemActive = 1 [L150] RET startSystem() [L165] CALL timeShift() [L193] CALL __utac_acc__Specification5_spec__2() [L67] CALL, EXPR isPumpRunning() [L345] int retValue_acc ; [L348] retValue_acc = pumpRunning [L349] return (retValue_acc); [L67] RET, EXPR isPumpRunning() [L67] switchedOnBeforeTS = isPumpRunning() [L193] RET __utac_acc__Specification5_spec__2() [L195] COND FALSE !(\read(pumpRunning)) [L202] COND TRUE \read(systemActive) [L204] CALL processEnvironment() [L276] int tmp ; [L279] COND FALSE !(\read(pumpRunning)) [L294] CALL processEnvironment__wrappee__methaneQuery() [L250] int tmp ; [L253] COND FALSE !(\read(pumpRunning)) [L268] CALL processEnvironment__wrappee__highWaterSensor() [L224] int tmp ; [L227] COND TRUE ! pumpRunning [L229] CALL, EXPR isHighWaterLevel() [L390] int retValue_acc ; [L391] int tmp ; [L392] int tmp___0 ; [L396] CALL, EXPR isHighWaterSensorDry() [L531] int retValue_acc ; [L534] COND TRUE waterLevel < 2 [L535] retValue_acc = 1 [L536] return (retValue_acc); [L396] RET, EXPR isHighWaterSensorDry() [L396] tmp = isHighWaterSensorDry() [L398] COND TRUE \read(tmp) [L399] tmp___0 = 0 [L403] retValue_acc = tmp___0 [L404] return (retValue_acc); [L229] RET, EXPR isHighWaterLevel() [L229] tmp = isHighWaterLevel() [L231] COND FALSE !(\read(tmp)) [L237] FCALL processEnvironment__wrappee__base() [L268] RET processEnvironment__wrappee__highWaterSensor() [L294] RET processEnvironment__wrappee__methaneQuery() [L204] RET processEnvironment() [L210] CALL __utac_acc__Specification5_spec__3() [L73] int tmp ; [L74] int tmp___0 ; [L78] CALL, EXPR getWaterLevel() [L522] int retValue_acc ; [L525] retValue_acc = waterLevel [L526] return (retValue_acc); [L78] RET, EXPR getWaterLevel() [L78] tmp = getWaterLevel() [L80] COND TRUE tmp != 2 [L82] CALL, EXPR isPumpRunning() [L345] int retValue_acc ; [L348] retValue_acc = pumpRunning [L349] return (retValue_acc); [L82] RET, EXPR isPumpRunning() [L82] tmp___0 = isPumpRunning() [L84] COND FALSE !(\read(tmp___0)) [L210] RET __utac_acc__Specification5_spec__3() [L165] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 118]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L53] int switchedOnBeforeTS ; [L185] int pumpRunning = 0; [L186] int systemActive = 1; [L451] int waterLevel = 1; [L452] int methaneLevelCritical = 0; [L554] int cleanupTimeShifts = 4; [L867] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L631] int retValue_acc ; [L632] int tmp ; [L636] FCALL select_helpers() [L637] FCALL select_features() [L638] CALL, EXPR valid_product() [L689] int retValue_acc ; [L692] retValue_acc = 1 [L693] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L638] RET, EXPR valid_product() [L638] tmp = valid_product() [L640] COND TRUE \read(tmp) [L642] FCALL setup() [L643] CALL runTest() [L621] CALL __utac_acc__Specification5_spec__1() [L58] switchedOnBeforeTS = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L621] RET __utac_acc__Specification5_spec__1() [L622] CALL test() [L109] int splverifierCounter ; [L110] int tmp ; [L111] int tmp___0 ; [L112] int tmp___1 ; [L113] int tmp___2 ; [L116] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] Loop: [L118] COND TRUE 1 [L120] COND TRUE splverifierCounter < 4 [L126] tmp = __VERIFIER_nondet_int() [L128] COND FALSE !(\read(tmp)) [L136] tmp___0 = __VERIFIER_nondet_int() [L138] COND FALSE !(\read(tmp___0)) [L146] tmp___2 = __VERIFIER_nondet_int() [L148] COND TRUE \read(tmp___2) [L150] CALL startSystem() [L446] systemActive = 1 [L150] RET startSystem() [L165] CALL timeShift() [L193] CALL __utac_acc__Specification5_spec__2() [L67] CALL, EXPR isPumpRunning() [L345] int retValue_acc ; [L348] retValue_acc = pumpRunning [L349] return (retValue_acc); [L67] RET, EXPR isPumpRunning() [L67] switchedOnBeforeTS = isPumpRunning() [L193] RET __utac_acc__Specification5_spec__2() [L195] COND FALSE !(\read(pumpRunning)) [L202] COND TRUE \read(systemActive) [L204] CALL processEnvironment() [L276] int tmp ; [L279] COND FALSE !(\read(pumpRunning)) [L294] CALL processEnvironment__wrappee__methaneQuery() [L250] int tmp ; [L253] COND FALSE !(\read(pumpRunning)) [L268] CALL processEnvironment__wrappee__highWaterSensor() [L224] int tmp ; [L227] COND TRUE ! pumpRunning [L229] CALL, EXPR isHighWaterLevel() [L390] int retValue_acc ; [L391] int tmp ; [L392] int tmp___0 ; [L396] CALL, EXPR isHighWaterSensorDry() [L531] int retValue_acc ; [L534] COND TRUE waterLevel < 2 [L535] retValue_acc = 1 [L536] return (retValue_acc); [L396] RET, EXPR isHighWaterSensorDry() [L396] tmp = isHighWaterSensorDry() [L398] COND TRUE \read(tmp) [L399] tmp___0 = 0 [L403] retValue_acc = tmp___0 [L404] return (retValue_acc); [L229] RET, EXPR isHighWaterLevel() [L229] tmp = isHighWaterLevel() [L231] COND FALSE !(\read(tmp)) [L237] FCALL processEnvironment__wrappee__base() [L268] RET processEnvironment__wrappee__highWaterSensor() [L294] RET processEnvironment__wrappee__methaneQuery() [L204] RET processEnvironment() [L210] CALL __utac_acc__Specification5_spec__3() [L73] int tmp ; [L74] int tmp___0 ; [L78] CALL, EXPR getWaterLevel() [L522] int retValue_acc ; [L525] retValue_acc = waterLevel [L526] return (retValue_acc); [L78] RET, EXPR getWaterLevel() [L78] tmp = getWaterLevel() [L80] COND TRUE tmp != 2 [L82] CALL, EXPR isPumpRunning() [L345] int retValue_acc ; [L348] retValue_acc = pumpRunning [L349] return (retValue_acc); [L82] RET, EXPR isPumpRunning() [L82] tmp___0 = isPumpRunning() [L84] COND FALSE !(\read(tmp___0)) [L210] RET __utac_acc__Specification5_spec__3() [L165] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-12-13 21:23:51,584 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23cbaa4-c184-4728-8d81-72bddf771b9b/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)