./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product43.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_4c99c954-c702-47d3-aaaa-172a7bc1c11c/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c99c954-c702-47d3-aaaa-172a7bc1c11c/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_4c99c954-c702-47d3-aaaa-172a7bc1c11c/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c99c954-c702-47d3-aaaa-172a7bc1c11c/bin/uautomizer-uyxdKDjOR8/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product43.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c99c954-c702-47d3-aaaa-172a7bc1c11c/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_4c99c954-c702-47d3-aaaa-172a7bc1c11c/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 b1639abd1442c0be189a21b610783cf9fd230aa6a3ef085b8b036961bd01ca7b --- 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 10:59:19,238 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 10:59:19,240 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 10:59:19,267 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 10:59:19,267 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 10:59:19,268 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 10:59:19,269 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 10:59:19,271 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 10:59:19,272 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 10:59:19,285 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 10:59:19,286 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 10:59:19,287 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 10:59:19,287 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 10:59:19,288 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 10:59:19,289 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 10:59:19,290 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 10:59:19,291 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 10:59:19,292 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 10:59:19,293 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 10:59:19,295 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 10:59:19,296 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 10:59:19,297 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 10:59:19,298 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 10:59:19,299 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 10:59:19,318 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 10:59:19,319 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 10:59:19,319 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 10:59:19,320 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 10:59:19,320 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 10:59:19,321 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 10:59:19,321 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 10:59:19,322 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 10:59:19,323 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 10:59:19,324 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 10:59:19,324 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 10:59:19,324 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 10:59:19,325 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 10:59:19,325 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 10:59:19,325 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 10:59:19,326 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 10:59:19,327 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 10:59:19,327 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c99c954-c702-47d3-aaaa-172a7bc1c11c/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-12-13 10:59:19,349 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 10:59:19,349 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 10:59:19,349 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 10:59:19,350 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 10:59:19,350 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 10:59:19,351 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 10:59:19,351 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 10:59:19,351 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-12-13 10:59:19,351 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-12-13 10:59:19,351 INFO L138 SettingsManager]: * Use old map elimination=false [2022-12-13 10:59:19,352 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-12-13 10:59:19,352 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-12-13 10:59:19,352 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-12-13 10:59:19,352 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 10:59:19,352 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 10:59:19,352 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 10:59:19,353 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 10:59:19,353 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 10:59:19,353 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 10:59:19,353 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-12-13 10:59:19,353 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-12-13 10:59:19,353 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-12-13 10:59:19,353 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 10:59:19,354 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 10:59:19,354 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-12-13 10:59:19,354 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 10:59:19,354 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-12-13 10:59:19,354 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 10:59:19,354 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 10:59:19,355 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 10:59:19,355 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 10:59:19,356 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-12-13 10:59:19,356 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_4c99c954-c702-47d3-aaaa-172a7bc1c11c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c99c954-c702-47d3-aaaa-172a7bc1c11c/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b1639abd1442c0be189a21b610783cf9fd230aa6a3ef085b8b036961bd01ca7b [2022-12-13 10:59:19,553 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 10:59:19,573 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 10:59:19,576 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 10:59:19,577 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 10:59:19,577 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 10:59:19,578 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c99c954-c702-47d3-aaaa-172a7bc1c11c/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/product-lines/minepump_spec3_product43.cil.c [2022-12-13 10:59:22,179 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 10:59:22,347 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 10:59:22,347 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c99c954-c702-47d3-aaaa-172a7bc1c11c/sv-benchmarks/c/product-lines/minepump_spec3_product43.cil.c [2022-12-13 10:59:22,355 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c99c954-c702-47d3-aaaa-172a7bc1c11c/bin/uautomizer-uyxdKDjOR8/data/d74492dc1/615ce7f53af74528812422a4865dc785/FLAG3f88fd906 [2022-12-13 10:59:22,741 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c99c954-c702-47d3-aaaa-172a7bc1c11c/bin/uautomizer-uyxdKDjOR8/data/d74492dc1/615ce7f53af74528812422a4865dc785 [2022-12-13 10:59:22,743 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 10:59:22,744 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 10:59:22,745 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 10:59:22,745 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 10:59:22,748 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 10:59:22,748 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 10:59:22" (1/1) ... [2022-12-13 10:59:22,749 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37dcf7ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:59:22, skipping insertion in model container [2022-12-13 10:59:22,749 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 10:59:22" (1/1) ... [2022-12-13 10:59:22,754 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 10:59:22,780 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 10:59:22,897 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_4c99c954-c702-47d3-aaaa-172a7bc1c11c/sv-benchmarks/c/product-lines/minepump_spec3_product43.cil.c[2897,2910] [2022-12-13 10:59:22,949 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 10:59:22,960 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 10:59:22,977 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_4c99c954-c702-47d3-aaaa-172a7bc1c11c/sv-benchmarks/c/product-lines/minepump_spec3_product43.cil.c[2897,2910] [2022-12-13 10:59:23,027 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 10:59:23,055 INFO L208 MainTranslator]: Completed translation [2022-12-13 10:59:23,055 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:59:23 WrapperNode [2022-12-13 10:59:23,055 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 10:59:23,056 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 10:59:23,056 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 10:59:23,057 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 10:59:23,064 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:59:23" (1/1) ... [2022-12-13 10:59:23,076 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:59:23" (1/1) ... [2022-12-13 10:59:23,104 INFO L138 Inliner]: procedures = 54, calls = 98, calls flagged for inlining = 51, calls inlined = 61, statements flattened = 436 [2022-12-13 10:59:23,104 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 10:59:23,105 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 10:59:23,105 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 10:59:23,105 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 10:59:23,115 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:59:23" (1/1) ... [2022-12-13 10:59:23,115 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:59:23" (1/1) ... [2022-12-13 10:59:23,117 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:59:23" (1/1) ... [2022-12-13 10:59:23,118 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:59:23" (1/1) ... [2022-12-13 10:59:23,124 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:59:23" (1/1) ... [2022-12-13 10:59:23,129 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:59:23" (1/1) ... [2022-12-13 10:59:23,131 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:59:23" (1/1) ... [2022-12-13 10:59:23,133 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:59:23" (1/1) ... [2022-12-13 10:59:23,135 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 10:59:23,136 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 10:59:23,136 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 10:59:23,137 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 10:59:23,137 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:59:23" (1/1) ... [2022-12-13 10:59:23,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 10:59:23,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c99c954-c702-47d3-aaaa-172a7bc1c11c/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 10:59:23,165 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c99c954-c702-47d3-aaaa-172a7bc1c11c/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 10:59:23,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c99c954-c702-47d3-aaaa-172a7bc1c11c/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-12-13 10:59:23,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 10:59:23,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 10:59:23,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 10:59:23,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 10:59:23,270 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 10:59:23,272 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 10:59:23,524 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 10:59:23,530 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 10:59:23,530 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-13 10:59:23,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:59:23 BoogieIcfgContainer [2022-12-13 10:59:23,532 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 10:59:23,533 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-12-13 10:59:23,533 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-12-13 10:59:23,535 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-12-13 10:59:23,536 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 10:59:23,536 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.12 10:59:22" (1/3) ... [2022-12-13 10:59:23,537 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2d60ac29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 10:59:23, skipping insertion in model container [2022-12-13 10:59:23,537 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 10:59:23,537 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:59:23" (2/3) ... [2022-12-13 10:59:23,537 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2d60ac29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 10:59:23, skipping insertion in model container [2022-12-13 10:59:23,537 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 10:59:23,537 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:59:23" (3/3) ... [2022-12-13 10:59:23,538 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product43.cil.c [2022-12-13 10:59:23,581 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-12-13 10:59:23,581 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-12-13 10:59:23,581 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-12-13 10:59:23,581 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-12-13 10:59:23,581 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-12-13 10:59:23,582 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-12-13 10:59:23,582 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-12-13 10:59:23,582 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-12-13 10:59:23,585 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 127 states, 126 states have (on average 1.373015873015873) internal successors, (173), 126 states have internal predecessors, (173), 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 10:59:23,601 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 82 [2022-12-13 10:59:23,601 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 10:59:23,602 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 10:59:23,606 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 10:59:23,606 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 10:59:23,606 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-12-13 10:59:23,607 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 127 states, 126 states have (on average 1.373015873015873) internal successors, (173), 126 states have internal predecessors, (173), 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 10:59:23,611 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 82 [2022-12-13 10:59:23,611 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 10:59:23,611 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 10:59:23,612 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 10:59:23,612 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 10:59:23,616 INFO L748 eck$LassoCheckResult]: Stem: 33#$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);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 45#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 27#select_helpers_returnLabel#1true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 109#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~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 90#valid_product_returnLabel#1true main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 56#L140true assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 74#setup_returnLabel#1true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet44#1, test_#t~nondet45#1, test_#t~nondet46#1, test_#t~nondet47#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~2#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 91#L802-2true [2022-12-13 10:59:23,616 INFO L750 eck$LassoCheckResult]: Loop: 91#L802-2true assume !false; 25#L803true assume test_~splverifierCounter~0#1 < 4; 15#L804true test_~tmp~8#1 := test_#t~nondet44#1;havoc test_#t~nondet44#1; 81#L812true assume !(0 != test_~tmp~8#1); 40#L812-2true test_~tmp___0~2#1 := test_#t~nondet45#1;havoc test_#t~nondet45#1; 79#L822true assume !(0 != test_~tmp___0~2#1); 60#L822-2true test_~tmp___2~0#1 := test_#t~nondet46#1;havoc test_#t~nondet46#1; 6#L832true assume 0 != test_~tmp___2~0#1; 104#L838-2true assume { :begin_inline_timeShift } true; 42#L614true assume !(0 != ~pumpRunning~0); 46#L614-2true assume !(0 != ~systemActive~0); 99#L621-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_#t~ret7#1, __utac_acc__Specification3_spec__1_~tmp~1#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~1#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;isMethaneLevelCritical_~retValue_acc~9#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~9#1; 73#isMethaneLevelCritical_returnLabel#2true __utac_acc__Specification3_spec__1_#t~ret5#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~1#1 := __utac_acc__Specification3_spec__1_#t~ret5#1;havoc __utac_acc__Specification3_spec__1_#t~ret5#1; 10#L175true assume 0 != __utac_acc__Specification3_spec__1_~tmp~1#1; 69#L181-1true assume { :end_inline___utac_acc__Specification3_spec__1 } true; 66#timeShift_returnLabel#1true assume { :end_inline_timeShift } true; 91#L802-2true [2022-12-13 10:59:23,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 10:59:23,621 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-12-13 10:59:23,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 10:59:23,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928389610] [2022-12-13 10:59:23,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 10:59:23,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 10:59:23,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 10:59:23,730 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 10:59:23,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 10:59:23,753 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 10:59:23,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 10:59:23,755 INFO L85 PathProgramCache]: Analyzing trace with hash -1131879530, now seen corresponding path program 1 times [2022-12-13 10:59:23,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 10:59:23,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118177875] [2022-12-13 10:59:23,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 10:59:23,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 10:59:23,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 10:59:23,762 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 10:59:23,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 10:59:23,767 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 10:59:23,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 10:59:23,769 INFO L85 PathProgramCache]: Analyzing trace with hash 223539546, now seen corresponding path program 1 times [2022-12-13 10:59:23,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 10:59:23,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636731591] [2022-12-13 10:59:23,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 10:59:23,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 10:59:23,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 10:59:23,908 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 10:59:23,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 10:59:23,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636731591] [2022-12-13 10:59:23,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636731591] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 10:59:23,909 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 10:59:23,909 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 10:59:23,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351744372] [2022-12-13 10:59:23,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 10:59:24,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 10:59:24,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 10:59:24,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 10:59:24,034 INFO L87 Difference]: Start difference. First operand has 127 states, 126 states have (on average 1.373015873015873) internal successors, (173), 126 states have internal predecessors, (173), 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 10:59:24,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 10:59:24,131 INFO L93 Difference]: Finished difference Result 311 states and 404 transitions. [2022-12-13 10:59:24,132 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 311 states and 404 transitions. [2022-12-13 10:59:24,138 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 199 [2022-12-13 10:59:24,144 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 311 states to 281 states and 374 transitions. [2022-12-13 10:59:24,145 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 281 [2022-12-13 10:59:24,146 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 281 [2022-12-13 10:59:24,146 INFO L73 IsDeterministic]: Start isDeterministic. Operand 281 states and 374 transitions. [2022-12-13 10:59:24,148 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 10:59:24,148 INFO L218 hiAutomatonCegarLoop]: Abstraction has 281 states and 374 transitions. [2022-12-13 10:59:24,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states and 374 transitions. [2022-12-13 10:59:24,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 172. [2022-12-13 10:59:24,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 172 states have (on average 1.3313953488372092) internal successors, (229), 171 states have internal predecessors, (229), 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 10:59:24,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 229 transitions. [2022-12-13 10:59:24,178 INFO L240 hiAutomatonCegarLoop]: Abstraction has 172 states and 229 transitions. [2022-12-13 10:59:24,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 10:59:24,182 INFO L428 stractBuchiCegarLoop]: Abstraction has 172 states and 229 transitions. [2022-12-13 10:59:24,182 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-12-13 10:59:24,182 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 172 states and 229 transitions. [2022-12-13 10:59:24,184 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 122 [2022-12-13 10:59:24,184 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 10:59:24,184 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 10:59:24,185 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 10:59:24,185 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 10:59:24,185 INFO L748 eck$LassoCheckResult]: Stem: 504#$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);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 505#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 497#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 498#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~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 555#valid_product_returnLabel#1 main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 533#L140 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 534#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet44#1, test_#t~nondet45#1, test_#t~nondet46#1, test_#t~nondet47#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~2#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 541#L802-2 [2022-12-13 10:59:24,185 INFO L750 eck$LassoCheckResult]: Loop: 541#L802-2 assume !false; 494#L803 assume test_~splverifierCounter~0#1 < 4; 479#L804 test_~tmp~8#1 := test_#t~nondet44#1;havoc test_#t~nondet44#1; 480#L812 assume !(0 != test_~tmp~8#1); 514#L812-2 test_~tmp___0~2#1 := test_#t~nondet45#1;havoc test_#t~nondet45#1; 515#L822 assume !(0 != test_~tmp___0~2#1); 496#L822-2 test_~tmp___2~0#1 := test_#t~nondet46#1;havoc test_#t~nondet46#1; 460#L832 assume 0 != test_~tmp___2~0#1; 462#L838-2 assume { :begin_inline_timeShift } true; 517#L614 assume !(0 != ~pumpRunning~0); 503#L614-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret32#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 522#L646 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 546#processEnvironment__wrappee__base_returnLabel#2 assume { :end_inline_processEnvironment__wrappee__base } true; 484#L646-1 assume { :end_inline_processEnvironment } true; 499#L621-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_#t~ret7#1, __utac_acc__Specification3_spec__1_~tmp~1#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~1#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;isMethaneLevelCritical_~retValue_acc~9#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~9#1; 544#isMethaneLevelCritical_returnLabel#2 __utac_acc__Specification3_spec__1_#t~ret5#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~1#1 := __utac_acc__Specification3_spec__1_#t~ret5#1;havoc __utac_acc__Specification3_spec__1_#t~ret5#1; 470#L175 assume 0 != __utac_acc__Specification3_spec__1_~tmp~1#1; 471#L181-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 540#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 541#L802-2 [2022-12-13 10:59:24,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 10:59:24,186 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-12-13 10:59:24,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 10:59:24,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893388405] [2022-12-13 10:59:24,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 10:59:24,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 10:59:24,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 10:59:24,197 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 10:59:24,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 10:59:24,208 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 10:59:24,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 10:59:24,209 INFO L85 PathProgramCache]: Analyzing trace with hash 1955398496, now seen corresponding path program 1 times [2022-12-13 10:59:24,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 10:59:24,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558294531] [2022-12-13 10:59:24,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 10:59:24,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 10:59:24,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 10:59:24,232 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 10:59:24,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 10:59:24,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558294531] [2022-12-13 10:59:24,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558294531] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 10:59:24,233 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 10:59:24,233 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 10:59:24,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117280813] [2022-12-13 10:59:24,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 10:59:24,234 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-12-13 10:59:24,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 10:59:24,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 10:59:24,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 10:59:24,235 INFO L87 Difference]: Start difference. First operand 172 states and 229 transitions. cyclomatic complexity: 60 Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:59:24,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 10:59:24,275 INFO L93 Difference]: Finished difference Result 228 states and 292 transitions. [2022-12-13 10:59:24,275 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 228 states and 292 transitions. [2022-12-13 10:59:24,277 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 165 [2022-12-13 10:59:24,279 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 228 states to 228 states and 292 transitions. [2022-12-13 10:59:24,279 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 228 [2022-12-13 10:59:24,279 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 228 [2022-12-13 10:59:24,279 INFO L73 IsDeterministic]: Start isDeterministic. Operand 228 states and 292 transitions. [2022-12-13 10:59:24,280 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 10:59:24,281 INFO L218 hiAutomatonCegarLoop]: Abstraction has 228 states and 292 transitions. [2022-12-13 10:59:24,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states and 292 transitions. [2022-12-13 10:59:24,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 228. [2022-12-13 10:59:24,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 228 states have (on average 1.280701754385965) internal successors, (292), 227 states have internal predecessors, (292), 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 10:59:24,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 292 transitions. [2022-12-13 10:59:24,291 INFO L240 hiAutomatonCegarLoop]: Abstraction has 228 states and 292 transitions. [2022-12-13 10:59:24,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 10:59:24,292 INFO L428 stractBuchiCegarLoop]: Abstraction has 228 states and 292 transitions. [2022-12-13 10:59:24,292 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-12-13 10:59:24,292 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 228 states and 292 transitions. [2022-12-13 10:59:24,294 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 165 [2022-12-13 10:59:24,294 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 10:59:24,294 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 10:59:24,295 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 10:59:24,295 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 10:59:24,295 INFO L748 eck$LassoCheckResult]: Stem: 910#$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);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 911#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 903#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 904#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~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 972#valid_product_returnLabel#1 main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 941#L140 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 942#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet44#1, test_#t~nondet45#1, test_#t~nondet46#1, test_#t~nondet47#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~2#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 953#L802-2 [2022-12-13 10:59:24,296 INFO L750 eck$LassoCheckResult]: Loop: 953#L802-2 assume !false; 1060#L803 assume test_~splverifierCounter~0#1 < 4; 884#L804 test_~tmp~8#1 := test_#t~nondet44#1;havoc test_#t~nondet44#1; 885#L812 assume !(0 != test_~tmp~8#1); 921#L812-2 test_~tmp___0~2#1 := test_#t~nondet45#1;havoc test_#t~nondet45#1; 922#L822 assume !(0 != test_~tmp___0~2#1); 902#L822-2 test_~tmp___2~0#1 := test_#t~nondet46#1;havoc test_#t~nondet46#1; 1054#L832 assume 0 != test_~tmp___2~0#1; 984#L838-2 assume { :begin_inline_timeShift } true; 924#L614 assume !(0 != ~pumpRunning~0); 925#L614-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret32#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 929#L646 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret43#1, isHighWaterLevel_~retValue_acc~8#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~8#1;havoc isHighWaterLevel_~tmp~7#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~11#1;havoc isHighWaterSensorDry_~retValue_acc~11#1; 968#L942 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~11#1; 890#isHighWaterSensorDry_returnLabel#1 isHighWaterLevel_#t~ret43#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7#1 := isHighWaterLevel_#t~ret43#1;havoc isHighWaterLevel_#t~ret43#1; 878#L766 assume 0 != isHighWaterLevel_~tmp~7#1;isHighWaterLevel_~tmp___0~1#1 := 0; 879#L766-2 isHighWaterLevel_~retValue_acc~8#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~8#1; 957#isHighWaterLevel_returnLabel#1 processEnvironment_#t~ret32#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~5#1 := processEnvironment_#t~ret32#1;havoc processEnvironment_#t~ret32#1; 977#L650 assume !(0 != processEnvironment_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 888#processEnvironment__wrappee__base_returnLabel#1 assume { :end_inline_processEnvironment__wrappee__base } true; 889#L646-1 assume { :end_inline_processEnvironment } true; 905#L621-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_#t~ret7#1, __utac_acc__Specification3_spec__1_~tmp~1#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~1#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;isMethaneLevelCritical_~retValue_acc~9#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~9#1; 956#isMethaneLevelCritical_returnLabel#2 __utac_acc__Specification3_spec__1_#t~ret5#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~1#1 := __utac_acc__Specification3_spec__1_#t~ret5#1;havoc __utac_acc__Specification3_spec__1_#t~ret5#1; 873#L175 assume 0 != __utac_acc__Specification3_spec__1_~tmp~1#1; 874#L181-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 952#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 953#L802-2 [2022-12-13 10:59:24,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 10:59:24,296 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-12-13 10:59:24,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 10:59:24,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130744805] [2022-12-13 10:59:24,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 10:59:24,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 10:59:24,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 10:59:24,306 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 10:59:24,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 10:59:24,315 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 10:59:24,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 10:59:24,316 INFO L85 PathProgramCache]: Analyzing trace with hash -1963918840, now seen corresponding path program 1 times [2022-12-13 10:59:24,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 10:59:24,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868704511] [2022-12-13 10:59:24,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 10:59:24,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 10:59:24,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 10:59:24,326 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 10:59:24,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 10:59:24,336 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 10:59:24,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 10:59:24,337 INFO L85 PathProgramCache]: Analyzing trace with hash 1080043716, now seen corresponding path program 1 times [2022-12-13 10:59:24,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 10:59:24,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617339314] [2022-12-13 10:59:24,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 10:59:24,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 10:59:24,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 10:59:24,431 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 10:59:24,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 10:59:24,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617339314] [2022-12-13 10:59:24,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617339314] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 10:59:24,432 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 10:59:24,432 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 10:59:24,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963411345] [2022-12-13 10:59:24,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 10:59:24,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 10:59:24,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 10:59:24,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 10:59:24,641 INFO L87 Difference]: Start difference. First operand 228 states and 292 transitions. cyclomatic complexity: 67 Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:59:24,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 10:59:24,740 INFO L93 Difference]: Finished difference Result 784 states and 997 transitions. [2022-12-13 10:59:24,740 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 784 states and 997 transitions. [2022-12-13 10:59:24,743 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 595 [2022-12-13 10:59:24,745 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 784 states to 784 states and 997 transitions. [2022-12-13 10:59:24,745 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 784 [2022-12-13 10:59:24,746 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 784 [2022-12-13 10:59:24,746 INFO L73 IsDeterministic]: Start isDeterministic. Operand 784 states and 997 transitions. [2022-12-13 10:59:24,748 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 10:59:24,748 INFO L218 hiAutomatonCegarLoop]: Abstraction has 784 states and 997 transitions. [2022-12-13 10:59:24,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 784 states and 997 transitions. [2022-12-13 10:59:24,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 784 to 449. [2022-12-13 10:59:24,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449 states, 449 states have (on average 1.2583518930957684) internal successors, (565), 448 states have internal predecessors, (565), 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 10:59:24,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 565 transitions. [2022-12-13 10:59:24,761 INFO L240 hiAutomatonCegarLoop]: Abstraction has 449 states and 565 transitions. [2022-12-13 10:59:24,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 10:59:24,761 INFO L428 stractBuchiCegarLoop]: Abstraction has 449 states and 565 transitions. [2022-12-13 10:59:24,761 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-12-13 10:59:24,762 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 449 states and 565 transitions. [2022-12-13 10:59:24,765 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 330 [2022-12-13 10:59:24,765 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 10:59:24,765 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 10:59:24,765 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 10:59:24,765 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 10:59:24,766 INFO L748 eck$LassoCheckResult]: Stem: 1939#$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);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 1940#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 1932#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1933#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~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 2016#valid_product_returnLabel#1 main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 1972#L140 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 1973#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet44#1, test_#t~nondet45#1, test_#t~nondet46#1, test_#t~nondet47#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~2#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1992#L802-2 [2022-12-13 10:59:24,766 INFO L750 eck$LassoCheckResult]: Loop: 1992#L802-2 assume !false; 2228#L803 assume test_~splverifierCounter~0#1 < 4; 2229#L804 test_~tmp~8#1 := test_#t~nondet44#1;havoc test_#t~nondet44#1; 2318#L812 assume !(0 != test_~tmp~8#1); 2316#L812-2 test_~tmp___0~2#1 := test_#t~nondet45#1;havoc test_#t~nondet45#1; 2315#L822 assume !(0 != test_~tmp___0~2#1); 2297#L822-2 test_~tmp___2~0#1 := test_#t~nondet46#1;havoc test_#t~nondet46#1; 2293#L832 assume 0 != test_~tmp___2~0#1; 2033#L838-2 assume { :begin_inline_timeShift } true; 1954#L614 assume !(0 != ~pumpRunning~0); 1955#L614-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret32#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 1959#L646 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret43#1, isHighWaterLevel_~retValue_acc~8#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~8#1;havoc isHighWaterLevel_~tmp~7#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~11#1;havoc isHighWaterSensorDry_~retValue_acc~11#1; 2011#L942 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~11#1; 1920#isHighWaterSensorDry_returnLabel#1 isHighWaterLevel_#t~ret43#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7#1 := isHighWaterLevel_#t~ret43#1;havoc isHighWaterLevel_#t~ret43#1; 1908#L766 assume 0 != isHighWaterLevel_~tmp~7#1;isHighWaterLevel_~tmp___0~1#1 := 0; 1909#L766-2 isHighWaterLevel_~retValue_acc~8#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~8#1; 2251#isHighWaterLevel_returnLabel#1 processEnvironment_#t~ret32#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~5#1 := processEnvironment_#t~ret32#1;havoc processEnvironment_#t~ret32#1; 2250#L650 assume !(0 != processEnvironment_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1918#processEnvironment__wrappee__base_returnLabel#1 assume { :end_inline_processEnvironment__wrappee__base } true; 1919#L646-1 assume { :end_inline_processEnvironment } true; 1934#L621-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_#t~ret7#1, __utac_acc__Specification3_spec__1_~tmp~1#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~1#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;isMethaneLevelCritical_~retValue_acc~9#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~9#1; 2237#isMethaneLevelCritical_returnLabel#2 __utac_acc__Specification3_spec__1_#t~ret5#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~1#1 := __utac_acc__Specification3_spec__1_#t~ret5#1;havoc __utac_acc__Specification3_spec__1_#t~ret5#1; 2236#L175 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~1#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; 2235#getWaterLevel_returnLabel#1 __utac_acc__Specification3_spec__1_#t~ret6#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~0#1 := __utac_acc__Specification3_spec__1_#t~ret6#1;havoc __utac_acc__Specification3_spec__1_#t~ret6#1; 2232#L181 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0#1); 2231#L181-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 2230#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1992#L802-2 [2022-12-13 10:59:24,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 10:59:24,766 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2022-12-13 10:59:24,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 10:59:24,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018235202] [2022-12-13 10:59:24,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 10:59:24,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 10:59:24,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 10:59:24,772 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 10:59:24,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 10:59:24,776 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 10:59:24,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 10:59:24,777 INFO L85 PathProgramCache]: Analyzing trace with hash -1834110085, now seen corresponding path program 1 times [2022-12-13 10:59:24,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 10:59:24,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606069577] [2022-12-13 10:59:24,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 10:59:24,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 10:59:24,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 10:59:24,784 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 10:59:24,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 10:59:24,788 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 10:59:24,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 10:59:24,789 INFO L85 PathProgramCache]: Analyzing trace with hash -1458822345, now seen corresponding path program 1 times [2022-12-13 10:59:24,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 10:59:24,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957365796] [2022-12-13 10:59:24,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 10:59:24,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 10:59:24,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 10:59:24,796 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 10:59:24,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 10:59:24,805 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 10:59:25,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 10:59:25,582 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 10:59:25,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 10:59:25,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.12 10:59:25 BoogieIcfgContainer [2022-12-13 10:59:25,617 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-12-13 10:59:25,617 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 10:59:25,617 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 10:59:25,617 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 10:59:25,618 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:59:23" (3/4) ... [2022-12-13 10:59:25,620 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-12-13 10:59:25,651 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c99c954-c702-47d3-aaaa-172a7bc1c11c/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 10:59:25,652 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 10:59:25,652 INFO L158 Benchmark]: Toolchain (without parser) took 2907.97ms. Allocated memory was 203.4MB in the beginning and 245.4MB in the end (delta: 41.9MB). Free memory was 141.8MB in the beginning and 170.1MB in the end (delta: -28.3MB). Peak memory consumption was 15.4MB. Max. memory is 16.1GB. [2022-12-13 10:59:25,652 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 104.9MB. Free memory is still 70.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 10:59:25,653 INFO L158 Benchmark]: CACSL2BoogieTranslator took 310.65ms. Allocated memory is still 203.4MB. Free memory was 141.7MB in the beginning and 175.1MB in the end (delta: -33.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-12-13 10:59:25,653 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.95ms. Allocated memory is still 203.4MB. Free memory was 175.1MB in the beginning and 172.3MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 10:59:25,653 INFO L158 Benchmark]: Boogie Preprocessor took 30.70ms. Allocated memory is still 203.4MB. Free memory was 172.3MB in the beginning and 170.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 10:59:25,653 INFO L158 Benchmark]: RCFGBuilder took 395.72ms. Allocated memory is still 203.4MB. Free memory was 170.2MB in the beginning and 150.5MB in the end (delta: 19.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-13 10:59:25,654 INFO L158 Benchmark]: BuchiAutomizer took 2084.06ms. Allocated memory was 203.4MB in the beginning and 245.4MB in the end (delta: 41.9MB). Free memory was 150.5MB in the beginning and 172.2MB in the end (delta: -21.8MB). Peak memory consumption was 19.5MB. Max. memory is 16.1GB. [2022-12-13 10:59:25,654 INFO L158 Benchmark]: Witness Printer took 34.63ms. Allocated memory is still 245.4MB. Free memory was 172.2MB in the beginning and 170.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 10:59:25,657 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 104.9MB. Free memory is still 70.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 310.65ms. Allocated memory is still 203.4MB. Free memory was 141.7MB in the beginning and 175.1MB in the end (delta: -33.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.95ms. Allocated memory is still 203.4MB. Free memory was 175.1MB in the beginning and 172.3MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.70ms. Allocated memory is still 203.4MB. Free memory was 172.3MB in the beginning and 170.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 395.72ms. Allocated memory is still 203.4MB. Free memory was 170.2MB in the beginning and 150.5MB in the end (delta: 19.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * BuchiAutomizer took 2084.06ms. Allocated memory was 203.4MB in the beginning and 245.4MB in the end (delta: 41.9MB). Free memory was 150.5MB in the beginning and 172.2MB in the end (delta: -21.8MB). Peak memory consumption was 19.5MB. Max. memory is 16.1GB. * Witness Printer took 34.63ms. Allocated memory is still 245.4MB. Free memory was 172.2MB in the beginning and 170.1MB 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 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 449 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.0s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 1.6s. Construction of modules took 0.1s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 444 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1426 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1426 mSDsluCounter, 2025 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1492 mSDsCounter, 37 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 143 IncrementalHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 37 mSolverCounterUnsat, 533 mSDtfsCounter, 143 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc2 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: 802]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L50] int cleanupTimeShifts = 4; [L369] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L607] int pumpRunning = 0; [L608] int systemActive = 1; [L859] int waterLevel = 1; [L860] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L131] int retValue_acc ; [L132] int tmp ; [L136] FCALL select_helpers() [L137] FCALL select_features() [L138] CALL, EXPR valid_product() [L592] int retValue_acc ; [L595] retValue_acc = 1 [L596] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L138] RET, EXPR valid_product() [L138] tmp = valid_product() [L140] COND TRUE \read(tmp) [L142] FCALL setup() [L143] CALL runTest() [L122] CALL test() [L793] int splverifierCounter ; [L794] int tmp ; [L795] int tmp___0 ; [L796] int tmp___1 ; [L797] int tmp___2 ; [L800] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L802] COND TRUE 1 [L804] COND TRUE splverifierCounter < 4 [L810] tmp = __VERIFIER_nondet_int() [L812] COND FALSE !(\read(tmp)) [L820] tmp___0 = __VERIFIER_nondet_int() [L822] COND FALSE !(\read(tmp___0)) [L830] tmp___2 = __VERIFIER_nondet_int() [L832] COND TRUE \read(tmp___2) [L847] CALL timeShift() [L614] COND FALSE !(\read(pumpRunning)) [L621] COND TRUE \read(systemActive) [L623] CALL processEnvironment() [L643] int tmp ; [L646] COND TRUE ! pumpRunning [L648] CALL, EXPR isHighWaterLevel() [L758] int retValue_acc ; [L759] int tmp ; [L760] int tmp___0 ; [L764] CALL, EXPR isHighWaterSensorDry() [L939] int retValue_acc ; [L942] COND TRUE waterLevel < 2 [L943] retValue_acc = 1 [L944] return (retValue_acc); [L764] RET, EXPR isHighWaterSensorDry() [L764] tmp = isHighWaterSensorDry() [L766] COND TRUE \read(tmp) [L767] tmp___0 = 0 [L771] retValue_acc = tmp___0 [L772] return (retValue_acc); [L648] RET, EXPR isHighWaterLevel() [L648] tmp = isHighWaterLevel() [L650] COND FALSE !(\read(tmp)) [L656] FCALL processEnvironment__wrappee__base() [L623] RET processEnvironment() [L629] CALL __utac_acc__Specification3_spec__1() [L167] int tmp ; [L168] int tmp___0 ; [L169] int tmp___1 ; [L173] CALL, EXPR isMethaneLevelCritical() [L898] int retValue_acc ; [L901] retValue_acc = methaneLevelCritical [L902] return (retValue_acc); [L173] RET, EXPR isMethaneLevelCritical() [L173] tmp = isMethaneLevelCritical() [L175] COND FALSE !(\read(tmp)) [L179] CALL, EXPR getWaterLevel() [L930] int retValue_acc ; [L933] retValue_acc = waterLevel [L934] return (retValue_acc); [L179] RET, EXPR getWaterLevel() [L179] tmp___0 = getWaterLevel() [L181] COND FALSE !(tmp___0 == 2) [L629] RET __utac_acc__Specification3_spec__1() [L847] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 802]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L50] int cleanupTimeShifts = 4; [L369] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L607] int pumpRunning = 0; [L608] int systemActive = 1; [L859] int waterLevel = 1; [L860] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L131] int retValue_acc ; [L132] int tmp ; [L136] FCALL select_helpers() [L137] FCALL select_features() [L138] CALL, EXPR valid_product() [L592] int retValue_acc ; [L595] retValue_acc = 1 [L596] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L138] RET, EXPR valid_product() [L138] tmp = valid_product() [L140] COND TRUE \read(tmp) [L142] FCALL setup() [L143] CALL runTest() [L122] CALL test() [L793] int splverifierCounter ; [L794] int tmp ; [L795] int tmp___0 ; [L796] int tmp___1 ; [L797] int tmp___2 ; [L800] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L802] COND TRUE 1 [L804] COND TRUE splverifierCounter < 4 [L810] tmp = __VERIFIER_nondet_int() [L812] COND FALSE !(\read(tmp)) [L820] tmp___0 = __VERIFIER_nondet_int() [L822] COND FALSE !(\read(tmp___0)) [L830] tmp___2 = __VERIFIER_nondet_int() [L832] COND TRUE \read(tmp___2) [L847] CALL timeShift() [L614] COND FALSE !(\read(pumpRunning)) [L621] COND TRUE \read(systemActive) [L623] CALL processEnvironment() [L643] int tmp ; [L646] COND TRUE ! pumpRunning [L648] CALL, EXPR isHighWaterLevel() [L758] int retValue_acc ; [L759] int tmp ; [L760] int tmp___0 ; [L764] CALL, EXPR isHighWaterSensorDry() [L939] int retValue_acc ; [L942] COND TRUE waterLevel < 2 [L943] retValue_acc = 1 [L944] return (retValue_acc); [L764] RET, EXPR isHighWaterSensorDry() [L764] tmp = isHighWaterSensorDry() [L766] COND TRUE \read(tmp) [L767] tmp___0 = 0 [L771] retValue_acc = tmp___0 [L772] return (retValue_acc); [L648] RET, EXPR isHighWaterLevel() [L648] tmp = isHighWaterLevel() [L650] COND FALSE !(\read(tmp)) [L656] FCALL processEnvironment__wrappee__base() [L623] RET processEnvironment() [L629] CALL __utac_acc__Specification3_spec__1() [L167] int tmp ; [L168] int tmp___0 ; [L169] int tmp___1 ; [L173] CALL, EXPR isMethaneLevelCritical() [L898] int retValue_acc ; [L901] retValue_acc = methaneLevelCritical [L902] return (retValue_acc); [L173] RET, EXPR isMethaneLevelCritical() [L173] tmp = isMethaneLevelCritical() [L175] COND FALSE !(\read(tmp)) [L179] CALL, EXPR getWaterLevel() [L930] int retValue_acc ; [L933] retValue_acc = waterLevel [L934] return (retValue_acc); [L179] RET, EXPR getWaterLevel() [L179] tmp___0 = getWaterLevel() [L181] COND FALSE !(tmp___0 == 2) [L629] RET __utac_acc__Specification3_spec__1() [L847] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-12-13 10:59:25,689 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c99c954-c702-47d3-aaaa-172a7bc1c11c/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)