./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product39.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_e5114c2d-a67a-4f25-a126-d0886ce6b39a/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5114c2d-a67a-4f25-a126-d0886ce6b39a/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_e5114c2d-a67a-4f25-a126-d0886ce6b39a/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5114c2d-a67a-4f25-a126-d0886ce6b39a/bin/uautomizer-uyxdKDjOR8/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product39.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5114c2d-a67a-4f25-a126-d0886ce6b39a/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_e5114c2d-a67a-4f25-a126-d0886ce6b39a/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 1a60868809a0ad0cb359a526a1f66a469756e048a31d4d83c9a3de774ac0575c --- 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 21:47:46,553 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 21:47:46,554 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 21:47:46,573 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 21:47:46,573 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 21:47:46,574 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 21:47:46,575 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 21:47:46,577 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 21:47:46,578 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 21:47:46,579 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 21:47:46,580 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 21:47:46,581 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 21:47:46,581 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 21:47:46,582 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 21:47:46,584 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 21:47:46,585 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 21:47:46,585 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 21:47:46,586 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 21:47:46,588 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 21:47:46,589 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 21:47:46,591 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 21:47:46,592 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 21:47:46,593 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 21:47:46,594 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 21:47:46,597 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 21:47:46,598 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 21:47:46,598 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 21:47:46,599 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 21:47:46,599 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 21:47:46,600 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 21:47:46,600 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 21:47:46,601 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 21:47:46,602 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 21:47:46,603 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 21:47:46,604 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 21:47:46,604 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 21:47:46,604 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 21:47:46,605 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 21:47:46,605 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 21:47:46,606 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 21:47:46,606 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 21:47:46,607 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5114c2d-a67a-4f25-a126-d0886ce6b39a/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-12-13 21:47:46,628 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 21:47:46,628 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 21:47:46,629 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 21:47:46,629 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 21:47:46,630 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 21:47:46,630 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 21:47:46,630 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 21:47:46,630 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-12-13 21:47:46,631 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-12-13 21:47:46,631 INFO L138 SettingsManager]: * Use old map elimination=false [2022-12-13 21:47:46,631 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-12-13 21:47:46,631 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-12-13 21:47:46,631 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-12-13 21:47:46,631 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 21:47:46,632 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 21:47:46,632 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 21:47:46,632 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 21:47:46,632 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 21:47:46,632 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 21:47:46,633 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-12-13 21:47:46,633 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-12-13 21:47:46,633 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-12-13 21:47:46,633 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 21:47:46,633 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 21:47:46,633 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-12-13 21:47:46,634 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 21:47:46,634 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-12-13 21:47:46,634 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 21:47:46,634 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 21:47:46,634 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 21:47:46,635 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 21:47:46,636 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-12-13 21:47:46,636 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_e5114c2d-a67a-4f25-a126-d0886ce6b39a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5114c2d-a67a-4f25-a126-d0886ce6b39a/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1a60868809a0ad0cb359a526a1f66a469756e048a31d4d83c9a3de774ac0575c [2022-12-13 21:47:46,819 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 21:47:46,847 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 21:47:46,850 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 21:47:46,851 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 21:47:46,851 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 21:47:46,852 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5114c2d-a67a-4f25-a126-d0886ce6b39a/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/product-lines/minepump_spec1_product39.cil.c [2022-12-13 21:47:49,519 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 21:47:49,718 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 21:47:49,719 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5114c2d-a67a-4f25-a126-d0886ce6b39a/sv-benchmarks/c/product-lines/minepump_spec1_product39.cil.c [2022-12-13 21:47:49,727 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5114c2d-a67a-4f25-a126-d0886ce6b39a/bin/uautomizer-uyxdKDjOR8/data/c5b43776e/1fdeeb8f61514e37b55e0ee5909f05f4/FLAG6bb9580b1 [2022-12-13 21:47:49,738 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5114c2d-a67a-4f25-a126-d0886ce6b39a/bin/uautomizer-uyxdKDjOR8/data/c5b43776e/1fdeeb8f61514e37b55e0ee5909f05f4 [2022-12-13 21:47:49,740 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 21:47:49,741 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 21:47:49,741 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 21:47:49,742 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 21:47:49,744 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 21:47:49,745 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:47:49" (1/1) ... [2022-12-13 21:47:49,745 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77a19cd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:47:49, skipping insertion in model container [2022-12-13 21:47:49,745 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:47:49" (1/1) ... [2022-12-13 21:47:49,751 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 21:47:49,775 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 21:47:49,922 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_e5114c2d-a67a-4f25-a126-d0886ce6b39a/sv-benchmarks/c/product-lines/minepump_spec1_product39.cil.c[11731,11744] [2022-12-13 21:47:49,945 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:47:49,956 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 21:47:49,992 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_e5114c2d-a67a-4f25-a126-d0886ce6b39a/sv-benchmarks/c/product-lines/minepump_spec1_product39.cil.c[11731,11744] [2022-12-13 21:47:50,004 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:47:50,036 INFO L208 MainTranslator]: Completed translation [2022-12-13 21:47:50,036 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:47:50 WrapperNode [2022-12-13 21:47:50,037 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 21:47:50,038 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 21:47:50,038 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 21:47:50,038 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 21:47:50,044 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:47:50" (1/1) ... [2022-12-13 21:47:50,059 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:47:50" (1/1) ... [2022-12-13 21:47:50,082 INFO L138 Inliner]: procedures = 54, calls = 99, calls flagged for inlining = 52, calls inlined = 79, statements flattened = 532 [2022-12-13 21:47:50,083 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 21:47:50,083 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 21:47:50,083 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 21:47:50,083 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 21:47:50,090 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:47:50" (1/1) ... [2022-12-13 21:47:50,090 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:47:50" (1/1) ... [2022-12-13 21:47:50,092 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:47:50" (1/1) ... [2022-12-13 21:47:50,092 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:47:50" (1/1) ... [2022-12-13 21:47:50,097 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:47:50" (1/1) ... [2022-12-13 21:47:50,101 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:47:50" (1/1) ... [2022-12-13 21:47:50,102 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:47:50" (1/1) ... [2022-12-13 21:47:50,104 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:47:50" (1/1) ... [2022-12-13 21:47:50,106 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 21:47:50,107 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 21:47:50,107 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 21:47:50,107 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 21:47:50,108 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:47:50" (1/1) ... [2022-12-13 21:47:50,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:47:50,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5114c2d-a67a-4f25-a126-d0886ce6b39a/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:47:50,132 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5114c2d-a67a-4f25-a126-d0886ce6b39a/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:47:50,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5114c2d-a67a-4f25-a126-d0886ce6b39a/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-12-13 21:47:50,168 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 21:47:50,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 21:47:50,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 21:47:50,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 21:47:50,232 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 21:47:50,234 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 21:47:50,563 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 21:47:50,570 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 21:47:50,570 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-13 21:47:50,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:47:50 BoogieIcfgContainer [2022-12-13 21:47:50,573 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 21:47:50,574 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-12-13 21:47:50,574 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-12-13 21:47:50,577 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-12-13 21:47:50,578 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 21:47:50,578 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.12 09:47:49" (1/3) ... [2022-12-13 21:47:50,579 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1cc11d35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 09:47:50, skipping insertion in model container [2022-12-13 21:47:50,579 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 21:47:50,579 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:47:50" (2/3) ... [2022-12-13 21:47:50,579 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1cc11d35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 09:47:50, skipping insertion in model container [2022-12-13 21:47:50,579 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 21:47:50,579 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:47:50" (3/3) ... [2022-12-13 21:47:50,581 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product39.cil.c [2022-12-13 21:47:50,628 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-12-13 21:47:50,628 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-12-13 21:47:50,628 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-12-13 21:47:50,628 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-12-13 21:47:50,628 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-12-13 21:47:50,628 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-12-13 21:47:50,628 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-12-13 21:47:50,628 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-12-13 21:47:50,632 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 160 states, 159 states have (on average 1.371069182389937) internal successors, (218), 159 states have internal predecessors, (218), 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 21:47:50,653 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 104 [2022-12-13 21:47:50,653 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 21:47:50,653 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 21:47:50,658 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:47:50,658 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:47:50,658 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-12-13 21:47:50,658 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 160 states, 159 states have (on average 1.371069182389937) internal successors, (218), 159 states have internal predecessors, (218), 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 21:47:50,665 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 104 [2022-12-13 21:47:50,665 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 21:47:50,665 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 21:47:50,666 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:47:50,666 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:47:50,670 INFO L748 eck$LassoCheckResult]: Stem: 34#$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);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 45#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret51#1, main_~retValue_acc~11#1, main_~tmp~8#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 27#select_helpers_returnLabel#1true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 131#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; 113#valid_product_returnLabel#1true main_#t~ret51#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret51#1;havoc main_#t~ret51#1; 109#L940true assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 84#setup_returnLabel#1true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet34#1, test_#t~nondet35#1, test_#t~nondet36#1, test_#t~nondet37#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 79#L567-2true [2022-12-13 21:47:50,671 INFO L750 eck$LassoCheckResult]: Loop: 79#L567-2true assume !false; 161#L568true assume test_~splverifierCounter~0#1 < 4; 37#L569true test_~tmp~4#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; 76#L577true assume !(0 != test_~tmp~4#1); 36#L577-2true test_~tmp___0~1#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; 153#L587true assume !(0 != test_~tmp___0~1#1); 70#L587-2true test_~tmp___2~0#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; 136#L597true assume 0 != test_~tmp___2~0#1; 3#L603-2true assume { :begin_inline_timeShift } true; 117#L634true assume !(0 != ~pumpRunning~0); 121#L634-2true assume !(0 != ~systemActive~0); 102#L641-1true assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret27#1, __utac_acc__Specification1_spec__1_#t~ret28#1, __utac_acc__Specification1_spec__1_~tmp~3#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~3#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 81#isMethaneLevelCritical_returnLabel#2true __utac_acc__Specification1_spec__1_#t~ret27#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~3#1 := __utac_acc__Specification1_spec__1_#t~ret27#1;havoc __utac_acc__Specification1_spec__1_#t~ret27#1; 111#L427true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~3#1); 75#L427-1true assume { :end_inline___utac_acc__Specification1_spec__1 } true; 72#timeShift_returnLabel#1true assume { :end_inline_timeShift } true; 79#L567-2true [2022-12-13 21:47:50,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:47:50,676 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-12-13 21:47:50,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:47:50,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249792085] [2022-12-13 21:47:50,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:47:50,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:47:50,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:47:50,757 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:47:50,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:47:50,787 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:47:50,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:47:50,789 INFO L85 PathProgramCache]: Analyzing trace with hash 169805764, now seen corresponding path program 1 times [2022-12-13 21:47:50,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:47:50,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382706873] [2022-12-13 21:47:50,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:47:50,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:47:50,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:47:50,799 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:47:50,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:47:50,807 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:47:50,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:47:50,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1525224840, now seen corresponding path program 1 times [2022-12-13 21:47:50,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:47:50,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755297217] [2022-12-13 21:47:50,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:47:50,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:47:50,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:47:50,978 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 21:47:50,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:47:50,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755297217] [2022-12-13 21:47:50,979 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755297217] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:47:50,979 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:47:50,979 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 21:47:50,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592854964] [2022-12-13 21:47:50,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:47:51,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:47:51,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 21:47:51,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 21:47:51,112 INFO L87 Difference]: Start difference. First operand has 160 states, 159 states have (on average 1.371069182389937) internal successors, (218), 159 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:47:51,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:47:51,215 INFO L93 Difference]: Finished difference Result 371 states and 485 transitions. [2022-12-13 21:47:51,216 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 371 states and 485 transitions. [2022-12-13 21:47:51,224 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 239 [2022-12-13 21:47:51,230 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 371 states to 341 states and 455 transitions. [2022-12-13 21:47:51,231 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 341 [2022-12-13 21:47:51,232 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 341 [2022-12-13 21:47:51,233 INFO L73 IsDeterministic]: Start isDeterministic. Operand 341 states and 455 transitions. [2022-12-13 21:47:51,235 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:47:51,235 INFO L218 hiAutomatonCegarLoop]: Abstraction has 341 states and 455 transitions. [2022-12-13 21:47:51,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states and 455 transitions. [2022-12-13 21:47:51,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 199. [2022-12-13 21:47:51,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 199 states have (on average 1.3316582914572865) internal successors, (265), 198 states have internal predecessors, (265), 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 21:47:51,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 265 transitions. [2022-12-13 21:47:51,268 INFO L240 hiAutomatonCegarLoop]: Abstraction has 199 states and 265 transitions. [2022-12-13 21:47:51,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 21:47:51,272 INFO L428 stractBuchiCegarLoop]: Abstraction has 199 states and 265 transitions. [2022-12-13 21:47:51,272 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-12-13 21:47:51,272 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 199 states and 265 transitions. [2022-12-13 21:47:51,274 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 140 [2022-12-13 21:47:51,274 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 21:47:51,274 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 21:47:51,275 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:47:51,275 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:47:51,275 INFO L748 eck$LassoCheckResult]: Stem: 603#$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);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 604#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret51#1, main_~retValue_acc~11#1, main_~tmp~8#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 591#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 592#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; 678#valid_product_returnLabel#1 main_#t~ret51#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret51#1;havoc main_#t~ret51#1; 675#L940 assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 655#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet34#1, test_#t~nondet35#1, test_#t~nondet36#1, test_#t~nondet37#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 648#L567-2 [2022-12-13 21:47:51,275 INFO L750 eck$LassoCheckResult]: Loop: 648#L567-2 assume !false; 652#L568 assume test_~splverifierCounter~0#1 < 4; 608#L569 test_~tmp~4#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; 609#L577 assume !(0 != test_~tmp~4#1); 581#L577-2 test_~tmp___0~1#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; 607#L587 assume !(0 != test_~tmp___0~1#1); 565#L587-2 test_~tmp___2~0#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; 645#L597 assume 0 != test_~tmp___2~0#1; 549#L603-2 assume { :begin_inline_timeShift } true; 550#L634 assume !(0 != ~pumpRunning~0); 673#L634-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret39#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 610#L692 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret38#1, processEnvironment__wrappee__highWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5#1; 612#L666-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 551#processEnvironment__wrappee__base_returnLabel#4 assume { :end_inline_processEnvironment__wrappee__base } true; 552#L666-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 625#L692-1 assume { :end_inline_processEnvironment } true; 626#L641-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret27#1, __utac_acc__Specification1_spec__1_#t~ret28#1, __utac_acc__Specification1_spec__1_~tmp~3#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~3#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 653#isMethaneLevelCritical_returnLabel#2 __utac_acc__Specification1_spec__1_#t~ret27#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~3#1 := __utac_acc__Specification1_spec__1_#t~ret27#1;havoc __utac_acc__Specification1_spec__1_#t~ret27#1; 654#L427 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~3#1); 649#L427-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 647#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 648#L567-2 [2022-12-13 21:47:51,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:47:51,276 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-12-13 21:47:51,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:47:51,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156963171] [2022-12-13 21:47:51,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:47:51,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:47:51,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:47:51,286 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:47:51,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:47:51,296 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:47:51,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:47:51,297 INFO L85 PathProgramCache]: Analyzing trace with hash -94485714, now seen corresponding path program 1 times [2022-12-13 21:47:51,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:47:51,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929877139] [2022-12-13 21:47:51,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:47:51,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:47:51,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:47:51,318 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 21:47:51,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:47:51,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929877139] [2022-12-13 21:47:51,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929877139] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:47:51,319 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:47:51,319 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 21:47:51,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343718659] [2022-12-13 21:47:51,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:47:51,320 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-12-13 21:47:51,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:47:51,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:47:51,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:47:51,321 INFO L87 Difference]: Start difference. First operand 199 states and 265 transitions. cyclomatic complexity: 69 Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:47:51,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:47:51,370 INFO L93 Difference]: Finished difference Result 249 states and 316 transitions. [2022-12-13 21:47:51,370 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 249 states and 316 transitions. [2022-12-13 21:47:51,372 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 179 [2022-12-13 21:47:51,374 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 249 states to 249 states and 316 transitions. [2022-12-13 21:47:51,374 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 249 [2022-12-13 21:47:51,375 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 249 [2022-12-13 21:47:51,375 INFO L73 IsDeterministic]: Start isDeterministic. Operand 249 states and 316 transitions. [2022-12-13 21:47:51,376 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:47:51,376 INFO L218 hiAutomatonCegarLoop]: Abstraction has 249 states and 316 transitions. [2022-12-13 21:47:51,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states and 316 transitions. [2022-12-13 21:47:51,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 249. [2022-12-13 21:47:51,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 249 states have (on average 1.2690763052208835) internal successors, (316), 248 states have internal predecessors, (316), 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 21:47:51,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 316 transitions. [2022-12-13 21:47:51,386 INFO L240 hiAutomatonCegarLoop]: Abstraction has 249 states and 316 transitions. [2022-12-13 21:47:51,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:47:51,387 INFO L428 stractBuchiCegarLoop]: Abstraction has 249 states and 316 transitions. [2022-12-13 21:47:51,387 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-12-13 21:47:51,387 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 249 states and 316 transitions. [2022-12-13 21:47:51,388 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 179 [2022-12-13 21:47:51,389 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 21:47:51,389 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 21:47:51,389 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:47:51,389 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:47:51,390 INFO L748 eck$LassoCheckResult]: Stem: 1055#$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);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 1056#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret51#1, main_~retValue_acc~11#1, main_~tmp~8#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 1044#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1045#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; 1138#valid_product_returnLabel#1 main_#t~ret51#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret51#1;havoc main_#t~ret51#1; 1134#L940 assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 1112#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet34#1, test_#t~nondet35#1, test_#t~nondet36#1, test_#t~nondet37#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1104#L567-2 [2022-12-13 21:47:51,390 INFO L750 eck$LassoCheckResult]: Loop: 1104#L567-2 assume !false; 1109#L568 assume test_~splverifierCounter~0#1 < 4; 1060#L569 test_~tmp~4#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; 1061#L577 assume !(0 != test_~tmp~4#1); 1034#L577-2 test_~tmp___0~1#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; 1059#L587 assume !(0 != test_~tmp___0~1#1); 1018#L587-2 test_~tmp___2~0#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; 1101#L597 assume 0 != test_~tmp___2~0#1; 1003#L603-2 assume { :begin_inline_timeShift } true; 1004#L634 assume !(0 != ~pumpRunning~0); 1140#L634-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret39#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 1062#L692 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret38#1, processEnvironment__wrappee__highWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5#1; 1063#L666-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret49#1, isHighWaterLevel_~retValue_acc~8#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~8#1;havoc isHighWaterLevel_~tmp~7#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;havoc isHighWaterSensorDry_~retValue_acc~5#1; 1125#L543-1 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~5#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~5#1; 1070#isHighWaterSensorDry_returnLabel#2 isHighWaterLevel_#t~ret49#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7#1 := isHighWaterLevel_#t~ret49#1;havoc isHighWaterLevel_#t~ret49#1; 1021#L794-3 assume 0 != isHighWaterLevel_~tmp~7#1;isHighWaterLevel_~tmp___0~2#1 := 0; 1022#L794-5 isHighWaterLevel_~retValue_acc~8#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~8#1; 1095#isHighWaterLevel_returnLabel#2 processEnvironment__wrappee__highWaterSensor_#t~ret38#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~5#1 := processEnvironment__wrappee__highWaterSensor_#t~ret38#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret38#1; 1085#L670-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1064#processEnvironment__wrappee__base_returnLabel#3 assume { :end_inline_processEnvironment__wrappee__base } true; 1065#L666-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1076#L692-1 assume { :end_inline_processEnvironment } true; 1077#L641-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret27#1, __utac_acc__Specification1_spec__1_#t~ret28#1, __utac_acc__Specification1_spec__1_~tmp~3#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~3#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 1110#isMethaneLevelCritical_returnLabel#2 __utac_acc__Specification1_spec__1_#t~ret27#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~3#1 := __utac_acc__Specification1_spec__1_#t~ret27#1;havoc __utac_acc__Specification1_spec__1_#t~ret27#1; 1111#L427 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~3#1); 1106#L427-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 1103#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1104#L567-2 [2022-12-13 21:47:51,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:47:51,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-12-13 21:47:51,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:47:51,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603127801] [2022-12-13 21:47:51,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:47:51,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:47:51,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:47:51,399 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:47:51,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:47:51,408 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:47:51,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:47:51,409 INFO L85 PathProgramCache]: Analyzing trace with hash 969585700, now seen corresponding path program 1 times [2022-12-13 21:47:51,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:47:51,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555657405] [2022-12-13 21:47:51,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:47:51,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:47:51,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:47:51,449 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 21:47:51,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:47:51,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555657405] [2022-12-13 21:47:51,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555657405] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:47:51,450 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:47:51,450 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 21:47:51,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540686871] [2022-12-13 21:47:51,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:47:51,451 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-12-13 21:47:51,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:47:51,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 21:47:51,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 21:47:51,451 INFO L87 Difference]: Start difference. First operand 249 states and 316 transitions. cyclomatic complexity: 70 Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:47:51,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:47:51,526 INFO L93 Difference]: Finished difference Result 709 states and 886 transitions. [2022-12-13 21:47:51,526 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 709 states and 886 transitions. [2022-12-13 21:47:51,532 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 521 [2022-12-13 21:47:51,535 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 709 states to 709 states and 886 transitions. [2022-12-13 21:47:51,535 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 709 [2022-12-13 21:47:51,536 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 709 [2022-12-13 21:47:51,536 INFO L73 IsDeterministic]: Start isDeterministic. Operand 709 states and 886 transitions. [2022-12-13 21:47:51,537 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:47:51,537 INFO L218 hiAutomatonCegarLoop]: Abstraction has 709 states and 886 transitions. [2022-12-13 21:47:51,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 709 states and 886 transitions. [2022-12-13 21:47:51,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 709 to 261. [2022-12-13 21:47:51,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 261 states have (on average 1.2567049808429118) internal successors, (328), 260 states have internal predecessors, (328), 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 21:47:51,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 328 transitions. [2022-12-13 21:47:51,545 INFO L240 hiAutomatonCegarLoop]: Abstraction has 261 states and 328 transitions. [2022-12-13 21:47:51,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 21:47:51,546 INFO L428 stractBuchiCegarLoop]: Abstraction has 261 states and 328 transitions. [2022-12-13 21:47:51,546 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-12-13 21:47:51,546 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 261 states and 328 transitions. [2022-12-13 21:47:51,547 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 187 [2022-12-13 21:47:51,547 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 21:47:51,547 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 21:47:51,548 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:47:51,548 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:47:51,548 INFO L748 eck$LassoCheckResult]: Stem: 2024#$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);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 2025#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret51#1, main_~retValue_acc~11#1, main_~tmp~8#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 2013#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2014#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; 2114#valid_product_returnLabel#1 main_#t~ret51#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret51#1;havoc main_#t~ret51#1; 2109#L940 assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 2085#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet34#1, test_#t~nondet35#1, test_#t~nondet36#1, test_#t~nondet37#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2086#L567-2 [2022-12-13 21:47:51,548 INFO L750 eck$LassoCheckResult]: Loop: 2086#L567-2 assume !false; 2213#L568 assume test_~splverifierCounter~0#1 < 4; 2212#L569 test_~tmp~4#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; 2079#L577 assume !(0 != test_~tmp~4#1); 2003#L577-2 test_~tmp___0~1#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; 2028#L587 assume !(0 != test_~tmp___0~1#1); 1986#L587-2 test_~tmp___2~0#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; 2074#L597 assume 0 != test_~tmp___2~0#1; 1971#L603-2 assume { :begin_inline_timeShift } true; 1972#L634 assume !(0 != ~pumpRunning~0); 2116#L634-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret39#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 2031#L692 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret38#1, processEnvironment__wrappee__highWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5#1; 2032#L666-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret49#1, isHighWaterLevel_~retValue_acc~8#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~8#1;havoc isHighWaterLevel_~tmp~7#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;havoc isHighWaterSensorDry_~retValue_acc~5#1; 2098#L543-1 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~5#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~5#1; 2115#isHighWaterSensorDry_returnLabel#2 isHighWaterLevel_#t~ret49#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7#1 := isHighWaterLevel_#t~ret49#1;havoc isHighWaterLevel_#t~ret49#1; 1989#L794-3 assume !(0 != isHighWaterLevel_~tmp~7#1);isHighWaterLevel_~tmp___0~2#1 := 1; 1990#L794-5 isHighWaterLevel_~retValue_acc~8#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~8#1; 2069#isHighWaterLevel_returnLabel#2 processEnvironment__wrappee__highWaterSensor_#t~ret38#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~5#1 := processEnvironment__wrappee__highWaterSensor_#t~ret38#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret38#1; 2059#L670-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2033#processEnvironment__wrappee__base_returnLabel#3 assume { :end_inline_processEnvironment__wrappee__base } true; 2034#L666-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 2049#L692-1 assume { :end_inline_processEnvironment } true; 2050#L641-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret27#1, __utac_acc__Specification1_spec__1_#t~ret28#1, __utac_acc__Specification1_spec__1_~tmp~3#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~3#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 2083#isMethaneLevelCritical_returnLabel#2 __utac_acc__Specification1_spec__1_#t~ret27#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~3#1 := __utac_acc__Specification1_spec__1_#t~ret27#1;havoc __utac_acc__Specification1_spec__1_#t~ret27#1; 2084#L427 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~3#1); 2215#L427-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 2214#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 2086#L567-2 [2022-12-13 21:47:51,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:47:51,548 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2022-12-13 21:47:51,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:47:51,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433143876] [2022-12-13 21:47:51,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:47:51,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:47:51,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:47:51,554 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:47:51,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:47:51,558 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:47:51,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:47:51,559 INFO L85 PathProgramCache]: Analyzing trace with hash 1227751138, now seen corresponding path program 1 times [2022-12-13 21:47:51,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:47:51,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430565163] [2022-12-13 21:47:51,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:47:51,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:47:51,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:47:51,595 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 21:47:51,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:47:51,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430565163] [2022-12-13 21:47:51,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430565163] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:47:51,595 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:47:51,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 21:47:51,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394545828] [2022-12-13 21:47:51,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:47:51,596 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-12-13 21:47:51,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:47:51,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 21:47:51,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 21:47:51,597 INFO L87 Difference]: Start difference. First operand 261 states and 328 transitions. cyclomatic complexity: 70 Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:47:51,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:47:51,705 INFO L93 Difference]: Finished difference Result 649 states and 811 transitions. [2022-12-13 21:47:51,705 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 649 states and 811 transitions. [2022-12-13 21:47:51,710 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 481 [2022-12-13 21:47:51,714 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 649 states to 649 states and 811 transitions. [2022-12-13 21:47:51,715 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 649 [2022-12-13 21:47:51,715 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 649 [2022-12-13 21:47:51,715 INFO L73 IsDeterministic]: Start isDeterministic. Operand 649 states and 811 transitions. [2022-12-13 21:47:51,716 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:47:51,717 INFO L218 hiAutomatonCegarLoop]: Abstraction has 649 states and 811 transitions. [2022-12-13 21:47:51,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 649 states and 811 transitions. [2022-12-13 21:47:51,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 649 to 279. [2022-12-13 21:47:51,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 279 states have (on average 1.2401433691756272) internal successors, (346), 278 states have internal predecessors, (346), 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 21:47:51,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 346 transitions. [2022-12-13 21:47:51,728 INFO L240 hiAutomatonCegarLoop]: Abstraction has 279 states and 346 transitions. [2022-12-13 21:47:51,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 21:47:51,729 INFO L428 stractBuchiCegarLoop]: Abstraction has 279 states and 346 transitions. [2022-12-13 21:47:51,729 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-12-13 21:47:51,729 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 279 states and 346 transitions. [2022-12-13 21:47:51,730 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 199 [2022-12-13 21:47:51,730 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 21:47:51,731 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 21:47:51,731 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:47:51,731 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:47:51,731 INFO L748 eck$LassoCheckResult]: Stem: 2947#$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);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 2948#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret51#1, main_~retValue_acc~11#1, main_~tmp~8#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 2936#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2937#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; 3034#valid_product_returnLabel#1 main_#t~ret51#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret51#1;havoc main_#t~ret51#1; 3030#L940 assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 3008#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet34#1, test_#t~nondet35#1, test_#t~nondet36#1, test_#t~nondet37#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 3001#L567-2 [2022-12-13 21:47:51,732 INFO L750 eck$LassoCheckResult]: Loop: 3001#L567-2 assume !false; 3005#L568 assume test_~splverifierCounter~0#1 < 4; 2951#L569 test_~tmp~4#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; 2952#L577 assume !(0 != test_~tmp~4#1); 2926#L577-2 test_~tmp___0~1#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; 2950#L587 assume !(0 != test_~tmp___0~1#1); 3138#L587-2 test_~tmp___2~0#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; 3052#L597 assume 0 != test_~tmp___2~0#1; 3054#L603-2 assume { :begin_inline_timeShift } true; 3119#L634 assume !(0 != ~pumpRunning~0); 3041#L634-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret39#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 2953#L692 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret38#1, processEnvironment__wrappee__highWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5#1; 2954#L666-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret49#1, isHighWaterLevel_~retValue_acc~8#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~8#1;havoc isHighWaterLevel_~tmp~7#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;havoc isHighWaterSensorDry_~retValue_acc~5#1; 3021#L543-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~5#1; 2962#isHighWaterSensorDry_returnLabel#2 isHighWaterLevel_#t~ret49#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7#1 := isHighWaterLevel_#t~ret49#1;havoc isHighWaterLevel_#t~ret49#1; 2963#L794-3 assume 0 != isHighWaterLevel_~tmp~7#1;isHighWaterLevel_~tmp___0~2#1 := 0; 3079#L794-5 isHighWaterLevel_~retValue_acc~8#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~8#1; 3076#isHighWaterLevel_returnLabel#2 processEnvironment__wrappee__highWaterSensor_#t~ret38#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~5#1 := processEnvironment__wrappee__highWaterSensor_#t~ret38#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret38#1; 3074#L670-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2955#processEnvironment__wrappee__base_returnLabel#3 assume { :end_inline_processEnvironment__wrappee__base } true; 2956#L666-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 2972#L692-1 assume { :end_inline_processEnvironment } true; 2973#L641-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret27#1, __utac_acc__Specification1_spec__1_#t~ret28#1, __utac_acc__Specification1_spec__1_~tmp~3#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~3#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 3006#isMethaneLevelCritical_returnLabel#2 __utac_acc__Specification1_spec__1_#t~ret27#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~3#1 := __utac_acc__Specification1_spec__1_#t~ret27#1;havoc __utac_acc__Specification1_spec__1_#t~ret27#1; 3007#L427 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~3#1); 3002#L427-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 3000#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 3001#L567-2 [2022-12-13 21:47:51,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:47:51,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 5 times [2022-12-13 21:47:51,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:47:51,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34615420] [2022-12-13 21:47:51,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:47:51,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:47:51,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:47:51,739 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:47:51,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:47:51,745 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:47:51,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:47:51,746 INFO L85 PathProgramCache]: Analyzing trace with hash 1980702950, now seen corresponding path program 1 times [2022-12-13 21:47:51,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:47:51,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565164175] [2022-12-13 21:47:51,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:47:51,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:47:51,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:47:51,752 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:47:51,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:47:51,759 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:47:51,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:47:51,760 INFO L85 PathProgramCache]: Analyzing trace with hash -1938976606, now seen corresponding path program 1 times [2022-12-13 21:47:51,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:47:51,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632264882] [2022-12-13 21:47:51,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:47:51,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:47:51,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:47:51,769 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:47:51,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:47:51,779 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:47:52,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:47:52,557 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:47:52,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:47:52,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.12 09:47:52 BoogieIcfgContainer [2022-12-13 21:47:52,599 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-12-13 21:47:52,600 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 21:47:52,600 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 21:47:52,600 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 21:47:52,600 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:47:50" (3/4) ... [2022-12-13 21:47:52,603 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-12-13 21:47:52,648 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5114c2d-a67a-4f25-a126-d0886ce6b39a/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 21:47:52,648 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 21:47:52,649 INFO L158 Benchmark]: Toolchain (without parser) took 2908.19ms. Allocated memory is still 144.7MB. Free memory was 96.4MB in the beginning and 69.7MB in the end (delta: 26.7MB). Peak memory consumption was 29.6MB. Max. memory is 16.1GB. [2022-12-13 21:47:52,649 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 102.8MB. Free memory is still 78.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 21:47:52,649 INFO L158 Benchmark]: CACSL2BoogieTranslator took 295.47ms. Allocated memory is still 144.7MB. Free memory was 96.4MB in the beginning and 114.5MB in the end (delta: -18.1MB). Peak memory consumption was 24.3MB. Max. memory is 16.1GB. [2022-12-13 21:47:52,650 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.90ms. Allocated memory is still 144.7MB. Free memory was 114.5MB in the beginning and 115.3MB in the end (delta: -784.0kB). Peak memory consumption was 4.1MB. Max. memory is 16.1GB. [2022-12-13 21:47:52,650 INFO L158 Benchmark]: Boogie Preprocessor took 23.24ms. Allocated memory is still 144.7MB. Free memory was 115.3MB in the beginning and 113.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 21:47:52,650 INFO L158 Benchmark]: RCFGBuilder took 466.26ms. Allocated memory is still 144.7MB. Free memory was 113.2MB in the beginning and 90.8MB in the end (delta: 22.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-12-13 21:47:52,651 INFO L158 Benchmark]: BuchiAutomizer took 2025.20ms. Allocated memory is still 144.7MB. Free memory was 90.8MB in the beginning and 71.8MB in the end (delta: 19.0MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. [2022-12-13 21:47:52,651 INFO L158 Benchmark]: Witness Printer took 48.74ms. Allocated memory is still 144.7MB. Free memory was 71.8MB in the beginning and 69.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 21:47:52,653 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 102.8MB. Free memory is still 78.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 295.47ms. Allocated memory is still 144.7MB. Free memory was 96.4MB in the beginning and 114.5MB in the end (delta: -18.1MB). Peak memory consumption was 24.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.90ms. Allocated memory is still 144.7MB. Free memory was 114.5MB in the beginning and 115.3MB in the end (delta: -784.0kB). Peak memory consumption was 4.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.24ms. Allocated memory is still 144.7MB. Free memory was 115.3MB in the beginning and 113.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 466.26ms. Allocated memory is still 144.7MB. Free memory was 113.2MB in the beginning and 90.8MB in the end (delta: 22.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * BuchiAutomizer took 2025.20ms. Allocated memory is still 144.7MB. Free memory was 90.8MB in the beginning and 71.8MB in the end (delta: 19.0MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. * Witness Printer took 48.74ms. Allocated memory is still 144.7MB. Free memory was 71.8MB in the beginning and 69.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (4 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.4 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 279 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.9s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 1.4s. Construction of modules took 0.1s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 960 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1881 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1881 mSDsluCounter, 3086 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2056 mSDsCounter, 73 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 229 IncrementalHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 73 mSolverCounterUnsat, 1030 mSDtfsCounter, 229 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 567]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L460] int waterLevel = 1; [L461] int methaneLevelCritical = 0; [L627] int pumpRunning = 0; [L628] int systemActive = 1; [L858] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L931] int retValue_acc ; [L932] int tmp ; [L936] FCALL select_helpers() [L937] FCALL select_features() [L938] CALL, EXPR valid_product() [L849] int retValue_acc ; [L852] retValue_acc = 1 [L853] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L938] RET, EXPR valid_product() [L938] tmp = valid_product() [L940] COND TRUE \read(tmp) [L942] FCALL setup() [L943] CALL runTest() [L925] CALL test() [L558] int splverifierCounter ; [L559] int tmp ; [L560] int tmp___0 ; [L561] int tmp___1 ; [L562] int tmp___2 ; [L565] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L567] COND TRUE 1 [L569] COND TRUE splverifierCounter < 4 [L575] tmp = __VERIFIER_nondet_int() [L577] COND FALSE !(\read(tmp)) [L585] tmp___0 = __VERIFIER_nondet_int() [L587] COND FALSE !(\read(tmp___0)) [L595] tmp___2 = __VERIFIER_nondet_int() [L597] COND TRUE \read(tmp___2) [L612] CALL timeShift() [L634] COND FALSE !(\read(pumpRunning)) [L641] COND TRUE \read(systemActive) [L643] CALL processEnvironment() [L689] int tmp ; [L692] COND FALSE !(\read(pumpRunning)) [L707] CALL processEnvironment__wrappee__highWaterSensor() [L663] int tmp ; [L666] COND TRUE ! pumpRunning [L668] CALL, EXPR isHighWaterLevel() [L786] int retValue_acc ; [L787] int tmp ; [L788] int tmp___0 ; [L792] CALL, EXPR isHighWaterSensorDry() [L540] int retValue_acc ; [L543] COND TRUE waterLevel < 2 [L544] retValue_acc = 1 [L545] return (retValue_acc); [L792] RET, EXPR isHighWaterSensorDry() [L792] tmp = isHighWaterSensorDry() [L794] COND TRUE \read(tmp) [L795] tmp___0 = 0 [L799] retValue_acc = tmp___0 [L800] return (retValue_acc); [L668] RET, EXPR isHighWaterLevel() [L668] tmp = isHighWaterLevel() [L670] COND FALSE !(\read(tmp)) [L676] FCALL processEnvironment__wrappee__base() [L707] RET processEnvironment__wrappee__highWaterSensor() [L643] RET processEnvironment() [L649] CALL __utac_acc__Specification1_spec__1() [L420] int tmp ; [L421] int tmp___0 ; [L425] CALL, EXPR isMethaneLevelCritical() [L499] int retValue_acc ; [L502] retValue_acc = methaneLevelCritical [L503] return (retValue_acc); [L425] RET, EXPR isMethaneLevelCritical() [L425] tmp = isMethaneLevelCritical() [L427] COND FALSE !(\read(tmp)) [L649] RET __utac_acc__Specification1_spec__1() [L612] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 567]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L460] int waterLevel = 1; [L461] int methaneLevelCritical = 0; [L627] int pumpRunning = 0; [L628] int systemActive = 1; [L858] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L931] int retValue_acc ; [L932] int tmp ; [L936] FCALL select_helpers() [L937] FCALL select_features() [L938] CALL, EXPR valid_product() [L849] int retValue_acc ; [L852] retValue_acc = 1 [L853] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L938] RET, EXPR valid_product() [L938] tmp = valid_product() [L940] COND TRUE \read(tmp) [L942] FCALL setup() [L943] CALL runTest() [L925] CALL test() [L558] int splverifierCounter ; [L559] int tmp ; [L560] int tmp___0 ; [L561] int tmp___1 ; [L562] int tmp___2 ; [L565] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L567] COND TRUE 1 [L569] COND TRUE splverifierCounter < 4 [L575] tmp = __VERIFIER_nondet_int() [L577] COND FALSE !(\read(tmp)) [L585] tmp___0 = __VERIFIER_nondet_int() [L587] COND FALSE !(\read(tmp___0)) [L595] tmp___2 = __VERIFIER_nondet_int() [L597] COND TRUE \read(tmp___2) [L612] CALL timeShift() [L634] COND FALSE !(\read(pumpRunning)) [L641] COND TRUE \read(systemActive) [L643] CALL processEnvironment() [L689] int tmp ; [L692] COND FALSE !(\read(pumpRunning)) [L707] CALL processEnvironment__wrappee__highWaterSensor() [L663] int tmp ; [L666] COND TRUE ! pumpRunning [L668] CALL, EXPR isHighWaterLevel() [L786] int retValue_acc ; [L787] int tmp ; [L788] int tmp___0 ; [L792] CALL, EXPR isHighWaterSensorDry() [L540] int retValue_acc ; [L543] COND TRUE waterLevel < 2 [L544] retValue_acc = 1 [L545] return (retValue_acc); [L792] RET, EXPR isHighWaterSensorDry() [L792] tmp = isHighWaterSensorDry() [L794] COND TRUE \read(tmp) [L795] tmp___0 = 0 [L799] retValue_acc = tmp___0 [L800] return (retValue_acc); [L668] RET, EXPR isHighWaterLevel() [L668] tmp = isHighWaterLevel() [L670] COND FALSE !(\read(tmp)) [L676] FCALL processEnvironment__wrappee__base() [L707] RET processEnvironment__wrappee__highWaterSensor() [L643] RET processEnvironment() [L649] CALL __utac_acc__Specification1_spec__1() [L420] int tmp ; [L421] int tmp___0 ; [L425] CALL, EXPR isMethaneLevelCritical() [L499] int retValue_acc ; [L502] retValue_acc = methaneLevelCritical [L503] return (retValue_acc); [L425] RET, EXPR isMethaneLevelCritical() [L425] tmp = isMethaneLevelCritical() [L427] COND FALSE !(\read(tmp)) [L649] RET __utac_acc__Specification1_spec__1() [L612] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-12-13 21:47:52,682 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5114c2d-a67a-4f25-a126-d0886ce6b39a/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)