./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product63.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 38b53e6a 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_92b3eebb-a560-4b89-ba14-bab8d7dacb42/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92b3eebb-a560-4b89-ba14-bab8d7dacb42/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92b3eebb-a560-4b89-ba14-bab8d7dacb42/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92b3eebb-a560-4b89-ba14-bab8d7dacb42/bin/uautomizer-ZsLfNo2U6R/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product63.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92b3eebb-a560-4b89-ba14-bab8d7dacb42/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92b3eebb-a560-4b89-ba14-bab8d7dacb42/bin/uautomizer-ZsLfNo2U6R --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 7c7779f94f1738e754b88f9a8a8e36de7065a4e94578f4135106bd0ff9ddb13d --- 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-38b53e6 [2022-11-25 17:31:31,441 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:31:31,443 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:31:31,474 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:31:31,475 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:31:31,477 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:31:31,498 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:31:31,500 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:31:31,502 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:31:31,503 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:31:31,504 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:31:31,505 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:31:31,506 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:31:31,507 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:31:31,508 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:31:31,510 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:31:31,511 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:31:31,512 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:31:31,514 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:31:31,515 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:31:31,517 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:31:31,518 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:31:31,520 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:31:31,521 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:31:31,524 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:31:31,525 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:31:31,525 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:31:31,526 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:31:31,527 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:31:31,528 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:31:31,529 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:31:31,530 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:31:31,531 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:31:31,532 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:31:31,533 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:31:31,533 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:31:31,534 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:31:31,535 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:31:31,535 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:31:31,536 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:31:31,537 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:31:31,538 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92b3eebb-a560-4b89-ba14-bab8d7dacb42/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-11-25 17:31:31,565 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:31:31,565 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:31:31,566 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:31:31,566 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:31:31,567 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:31:31,568 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:31:31,568 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:31:31,568 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-25 17:31:31,568 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-25 17:31:31,569 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-25 17:31:31,569 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-25 17:31:31,569 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-25 17:31:31,569 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-25 17:31:31,570 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:31:31,570 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 17:31:31,570 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 17:31:31,570 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:31:31,571 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 17:31:31,571 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:31:31,571 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-25 17:31:31,571 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-25 17:31:31,572 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-25 17:31:31,572 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 17:31:31,572 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:31:31,572 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-25 17:31:31,573 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:31:31,573 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-25 17:31:31,573 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:31:31,573 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:31:31,574 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:31:31,574 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:31:31,575 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-25 17:31:31,575 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_92b3eebb-a560-4b89-ba14-bab8d7dacb42/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92b3eebb-a560-4b89-ba14-bab8d7dacb42/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c7779f94f1738e754b88f9a8a8e36de7065a4e94578f4135106bd0ff9ddb13d [2022-11-25 17:31:31,852 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:31:31,891 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:31:31,893 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:31:31,895 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:31:31,896 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:31:31,898 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92b3eebb-a560-4b89-ba14-bab8d7dacb42/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/product-lines/minepump_spec4_product63.cil.c [2022-11-25 17:31:35,000 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:31:35,295 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:31:35,296 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92b3eebb-a560-4b89-ba14-bab8d7dacb42/sv-benchmarks/c/product-lines/minepump_spec4_product63.cil.c [2022-11-25 17:31:35,324 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92b3eebb-a560-4b89-ba14-bab8d7dacb42/bin/uautomizer-ZsLfNo2U6R/data/1f3de9fd3/944d83a1e5154e8c8e36efdef41e5069/FLAGab16502ee [2022-11-25 17:31:35,348 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92b3eebb-a560-4b89-ba14-bab8d7dacb42/bin/uautomizer-ZsLfNo2U6R/data/1f3de9fd3/944d83a1e5154e8c8e36efdef41e5069 [2022-11-25 17:31:35,354 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:31:35,356 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:31:35,362 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:31:35,362 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:31:35,366 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:31:35,367 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:31:35" (1/1) ... [2022-11-25 17:31:35,368 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@192269e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:31:35, skipping insertion in model container [2022-11-25 17:31:35,369 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:31:35" (1/1) ... [2022-11-25 17:31:35,378 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:31:35,460 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:31:35,866 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_92b3eebb-a560-4b89-ba14-bab8d7dacb42/sv-benchmarks/c/product-lines/minepump_spec4_product63.cil.c[15018,15031] [2022-11-25 17:31:35,883 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:31:35,897 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:31:35,951 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_92b3eebb-a560-4b89-ba14-bab8d7dacb42/sv-benchmarks/c/product-lines/minepump_spec4_product63.cil.c[15018,15031] [2022-11-25 17:31:35,962 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:31:35,988 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:31:35,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:31:35 WrapperNode [2022-11-25 17:31:35,990 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:31:35,991 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:31:35,991 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:31:35,991 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:31:35,999 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:31:35" (1/1) ... [2022-11-25 17:31:36,012 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:31:35" (1/1) ... [2022-11-25 17:31:36,071 INFO L138 Inliner]: procedures = 58, calls = 106, calls flagged for inlining = 59, calls inlined = 175, statements flattened = 1204 [2022-11-25 17:31:36,072 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:31:36,072 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:31:36,073 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:31:36,073 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:31:36,083 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:31:35" (1/1) ... [2022-11-25 17:31:36,084 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:31:35" (1/1) ... [2022-11-25 17:31:36,090 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:31:35" (1/1) ... [2022-11-25 17:31:36,090 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:31:35" (1/1) ... [2022-11-25 17:31:36,109 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:31:35" (1/1) ... [2022-11-25 17:31:36,119 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:31:35" (1/1) ... [2022-11-25 17:31:36,122 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:31:35" (1/1) ... [2022-11-25 17:31:36,125 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:31:35" (1/1) ... [2022-11-25 17:31:36,131 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:31:36,132 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:31:36,132 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:31:36,133 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:31:36,134 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:31:35" (1/1) ... [2022-11-25 17:31:36,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:31:36,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92b3eebb-a560-4b89-ba14-bab8d7dacb42/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:31:36,173 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92b3eebb-a560-4b89-ba14-bab8d7dacb42/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:31:36,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92b3eebb-a560-4b89-ba14-bab8d7dacb42/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-25 17:31:36,238 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:31:36,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 17:31:36,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:31:36,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:31:36,336 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:31:36,338 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:31:37,311 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:31:37,323 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:31:37,323 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-25 17:31:37,326 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:31:37 BoogieIcfgContainer [2022-11-25 17:31:37,326 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:31:37,328 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-25 17:31:37,328 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-25 17:31:37,332 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-25 17:31:37,333 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-25 17:31:37,334 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 25.11 05:31:35" (1/3) ... [2022-11-25 17:31:37,335 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@669d7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 05:31:37, skipping insertion in model container [2022-11-25 17:31:37,335 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-25 17:31:37,336 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:31:35" (2/3) ... [2022-11-25 17:31:37,336 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@669d7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 05:31:37, skipping insertion in model container [2022-11-25 17:31:37,336 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-25 17:31:37,337 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:31:37" (3/3) ... [2022-11-25 17:31:37,338 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product63.cil.c [2022-11-25 17:31:37,409 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-25 17:31:37,409 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-25 17:31:37,410 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-25 17:31:37,410 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-25 17:31:37,410 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-25 17:31:37,410 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-25 17:31:37,411 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-25 17:31:37,411 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-25 17:31:37,417 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 322 states, 321 states have (on average 1.35202492211838) internal successors, (434), 321 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:31:37,456 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 212 [2022-11-25 17:31:37,461 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-25 17:31:37,461 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-25 17:31:37,471 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:31:37,472 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:31:37,472 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-25 17:31:37,475 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 322 states, 321 states have (on average 1.35202492211838) internal successors, (434), 321 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:31:37,503 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 212 [2022-11-25 17:31:37,507 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-25 17:31:37,507 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-25 17:31:37,508 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:31:37,509 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:31:37,516 INFO L748 eck$LassoCheckResult]: Stem: 308#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 225#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 173#L542true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 273#L535true 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; 160#L550true main_#t~ret27#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1; 135#L506true assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 252#L479true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet51#1, test_#t~nondet52#1, test_#t~nondet53#1, test_#t~nondet54#1, test_~splverifierCounter~0#1, test_~tmp~11#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~11#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 291#L969-2true [2022-11-25 17:31:37,518 INFO L750 eck$LassoCheckResult]: Loop: 291#L969-2true assume !false; 31#L970true assume test_~splverifierCounter~0#1 < 4; 262#L971true test_~tmp~11#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 136#L979true assume !(0 != test_~tmp~11#1); 104#L979-2true test_~tmp___0~3#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1; 216#L989true assume !(0 != test_~tmp___0~3#1); 60#L989-2true test_~tmp___2~0#1 := test_#t~nondet53#1;havoc test_#t~nondet53#1; 306#L999true assume 0 != test_~tmp___2~0#1; 211#L1005-2true assume { :begin_inline_timeShift } true; 229#L711true assume !(0 != ~pumpRunning~0); 76#L711-2true assume !(0 != ~systemActive~0); 321#L718-1true assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret29#1, __utac_acc__Specification4_spec__1_#t~ret30#1, __utac_acc__Specification4_spec__1_~tmp~4#1, __utac_acc__Specification4_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification4_spec__1_~tmp~4#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; 47#L664true __utac_acc__Specification4_spec__1_#t~ret29#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~4#1 := __utac_acc__Specification4_spec__1_#t~ret29#1;havoc __utac_acc__Specification4_spec__1_#t~ret29#1; 132#L566true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~4#1); 248#L566-1true assume { :end_inline___utac_acc__Specification4_spec__1 } true; 74#L728true assume { :end_inline_timeShift } true; 291#L969-2true [2022-11-25 17:31:37,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:31:37,526 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-11-25 17:31:37,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:31:37,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114219443] [2022-11-25 17:31:37,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:31:37,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:31:37,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:31:37,664 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:31:37,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:31:37,784 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:31:37,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:31:37,788 INFO L85 PathProgramCache]: Analyzing trace with hash 1022359812, now seen corresponding path program 1 times [2022-11-25 17:31:37,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:31:37,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044254680] [2022-11-25 17:31:37,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:31:37,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:31:37,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:31:37,830 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:31:37,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:31:37,848 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:31:37,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:31:37,860 INFO L85 PathProgramCache]: Analyzing trace with hash -1917188408, now seen corresponding path program 1 times [2022-11-25 17:31:37,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:31:37,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948814152] [2022-11-25 17:31:37,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:31:37,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:31:37,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:31:38,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:31:38,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:31:38,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948814152] [2022-11-25 17:31:38,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948814152] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:31:38,127 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:31:38,128 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 17:31:38,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747561243] [2022-11-25 17:31:38,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:31:38,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:31:38,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:31:38,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:31:38,293 INFO L87 Difference]: Start difference. First operand has 322 states, 321 states have (on average 1.35202492211838) internal successors, (434), 321 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) 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) [2022-11-25 17:31:38,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:31:38,600 INFO L93 Difference]: Finished difference Result 695 states and 917 transitions. [2022-11-25 17:31:38,601 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 695 states and 917 transitions. [2022-11-25 17:31:38,610 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 455 [2022-11-25 17:31:38,627 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 695 states to 665 states and 887 transitions. [2022-11-25 17:31:38,632 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 665 [2022-11-25 17:31:38,636 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 665 [2022-11-25 17:31:38,636 INFO L73 IsDeterministic]: Start isDeterministic. Operand 665 states and 887 transitions. [2022-11-25 17:31:38,640 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:31:38,640 INFO L218 hiAutomatonCegarLoop]: Abstraction has 665 states and 887 transitions. [2022-11-25 17:31:38,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states and 887 transitions. [2022-11-25 17:31:38,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 361. [2022-11-25 17:31:38,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 361 states have (on average 1.332409972299169) internal successors, (481), 360 states have internal predecessors, (481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:31:38,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 481 transitions. [2022-11-25 17:31:38,688 INFO L240 hiAutomatonCegarLoop]: Abstraction has 361 states and 481 transitions. [2022-11-25 17:31:38,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:31:38,693 INFO L428 stractBuchiCegarLoop]: Abstraction has 361 states and 481 transitions. [2022-11-25 17:31:38,693 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-25 17:31:38,693 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 361 states and 481 transitions. [2022-11-25 17:31:38,701 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 248 [2022-11-25 17:31:38,701 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-25 17:31:38,707 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-25 17:31:38,708 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:31:38,708 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:31:38,709 INFO L748 eck$LassoCheckResult]: Stem: 1344#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 1318#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 1285#L542 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1286#L535 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; 1269#L550 main_#t~ret27#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1; 1241#L506 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 1242#L479 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet51#1, test_#t~nondet52#1, test_#t~nondet53#1, test_#t~nondet54#1, test_~splverifierCounter~0#1, test_~tmp~11#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~11#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1164#L969-2 [2022-11-25 17:31:38,709 INFO L750 eck$LassoCheckResult]: Loop: 1164#L969-2 assume !false; 1089#L970 assume test_~splverifierCounter~0#1 < 4; 1090#L971 test_~tmp~11#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 1243#L979 assume !(0 != test_~tmp~11#1); 1155#L979-2 test_~tmp___0~3#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1; 1205#L989 assume !(0 != test_~tmp___0~3#1); 1142#L989-2 test_~tmp___2~0#1 := test_#t~nondet53#1;havoc test_#t~nondet53#1; 1143#L999 assume 0 != test_~tmp___2~0#1; 1145#L1005-2 assume { :begin_inline_timeShift } true; 1315#L711 assume !(0 != ~pumpRunning~0); 1166#L711-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret38#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; 1167#L795 assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret40#1, isMethaneAlarm_~retValue_acc~10#1;havoc isMethaneAlarm_~retValue_acc~10#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 1279#L632 isMethaneAlarm_#t~ret40#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~10#1 := isMethaneAlarm_#t~ret40#1;havoc isMethaneAlarm_#t~ret40#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~10#1; 1265#L856 processEnvironment_#t~ret38#1 := isMethaneAlarm_#res#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~7#1 := processEnvironment_#t~ret38#1;havoc processEnvironment_#t~ret38#1; 1254#L799 assume 0 != processEnvironment_~tmp~7#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; 1255#L846-1 assume { :end_inline_deactivatePump } true; 1080#L795-1 assume { :end_inline_processEnvironment } true; 1081#L718-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret29#1, __utac_acc__Specification4_spec__1_#t~ret30#1, __utac_acc__Specification4_spec__1_~tmp~4#1, __utac_acc__Specification4_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification4_spec__1_~tmp~4#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; 1119#L664 __utac_acc__Specification4_spec__1_#t~ret29#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~4#1 := __utac_acc__Specification4_spec__1_#t~ret29#1;havoc __utac_acc__Specification4_spec__1_#t~ret29#1; 1120#L566 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~4#1); 1122#L566-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 1163#L728 assume { :end_inline_timeShift } true; 1164#L969-2 [2022-11-25 17:31:38,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:31:38,710 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-11-25 17:31:38,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:31:38,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006293167] [2022-11-25 17:31:38,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:31:38,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:31:38,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:31:38,727 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:31:38,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:31:38,739 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:31:38,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:31:38,740 INFO L85 PathProgramCache]: Analyzing trace with hash -1369355091, now seen corresponding path program 1 times [2022-11-25 17:31:38,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:31:38,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053960019] [2022-11-25 17:31:38,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:31:38,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:31:38,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:31:38,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:31:38,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:31:38,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053960019] [2022-11-25 17:31:38,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053960019] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:31:38,806 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:31:38,806 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:31:38,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707596802] [2022-11-25 17:31:38,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:31:38,806 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-25 17:31:38,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:31:38,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:31:38,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:31:38,808 INFO L87 Difference]: Start difference. First operand 361 states and 481 transitions. cyclomatic complexity: 123 Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:31:38,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:31:38,954 INFO L93 Difference]: Finished difference Result 363 states and 457 transitions. [2022-11-25 17:31:38,954 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 363 states and 457 transitions. [2022-11-25 17:31:38,959 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 255 [2022-11-25 17:31:38,962 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 363 states to 363 states and 457 transitions. [2022-11-25 17:31:38,962 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 363 [2022-11-25 17:31:38,963 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 363 [2022-11-25 17:31:38,963 INFO L73 IsDeterministic]: Start isDeterministic. Operand 363 states and 457 transitions. [2022-11-25 17:31:38,964 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:31:38,965 INFO L218 hiAutomatonCegarLoop]: Abstraction has 363 states and 457 transitions. [2022-11-25 17:31:38,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states and 457 transitions. [2022-11-25 17:31:38,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 363. [2022-11-25 17:31:38,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 363 states have (on average 1.258953168044077) internal successors, (457), 362 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:31:38,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 457 transitions. [2022-11-25 17:31:38,981 INFO L240 hiAutomatonCegarLoop]: Abstraction has 363 states and 457 transitions. [2022-11-25 17:31:38,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:31:38,983 INFO L428 stractBuchiCegarLoop]: Abstraction has 363 states and 457 transitions. [2022-11-25 17:31:38,983 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-25 17:31:38,983 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 363 states and 457 transitions. [2022-11-25 17:31:38,987 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 255 [2022-11-25 17:31:38,987 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-25 17:31:38,987 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-25 17:31:38,988 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:31:38,988 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:31:38,988 INFO L748 eck$LassoCheckResult]: Stem: 2022#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 1994#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 1962#L542 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1963#L535 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; 1952#L550 main_#t~ret27#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1; 1926#L506 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 1927#L479 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet51#1, test_#t~nondet52#1, test_#t~nondet53#1, test_#t~nondet54#1, test_~splverifierCounter~0#1, test_~tmp~11#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~11#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2004#L969-2 [2022-11-25 17:31:38,989 INFO L750 eck$LassoCheckResult]: Loop: 2004#L969-2 assume !false; 2096#L970 assume test_~splverifierCounter~0#1 < 4; 2008#L971 test_~tmp~11#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 1928#L979 assume !(0 != test_~tmp~11#1); 1857#L979-2 test_~tmp___0~3#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1; 1900#L989 assume !(0 != test_~tmp___0~3#1); 1846#L989-2 test_~tmp___2~0#1 := test_#t~nondet53#1;havoc test_#t~nondet53#1; 1847#L999 assume 0 != test_~tmp___2~0#1; 1849#L1005-2 assume { :begin_inline_timeShift } true; 1989#L711 assume !(0 != ~pumpRunning~0); 1870#L711-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret38#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; 1871#L795 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret37#1, processEnvironment__wrappee__methaneQuery_~tmp~6#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~6#1; 1956#L769-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret36#1, processEnvironment__wrappee__highWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5#1; 1943#L743-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret49#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~9#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~12#1;havoc isHighWaterLevel_~tmp~9#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 1855#L672-3 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~8#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 1856#L677-3 isHighWaterLevel_#t~ret49#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~9#1 := isHighWaterLevel_#t~ret49#1;havoc isHighWaterLevel_#t~ret49#1; 1903#L914-9 assume 0 != isHighWaterLevel_~tmp~9#1;isHighWaterLevel_~tmp___0~1#1 := 0; 1968#L914-11 isHighWaterLevel_~retValue_acc~12#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1; 1969#L920-3 processEnvironment__wrappee__highWaterSensor_#t~ret36#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~5#1 := processEnvironment__wrappee__highWaterSensor_#t~ret36#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret36#1; 1973#L747-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1802#L735-6 assume { :end_inline_processEnvironment__wrappee__base } true; 1774#L743-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1834#L769-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 1797#L795-1 assume { :end_inline_processEnvironment } true; 1798#L718-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret29#1, __utac_acc__Specification4_spec__1_#t~ret30#1, __utac_acc__Specification4_spec__1_~tmp~4#1, __utac_acc__Specification4_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification4_spec__1_~tmp~4#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; 2102#L664 __utac_acc__Specification4_spec__1_#t~ret29#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~4#1 := __utac_acc__Specification4_spec__1_#t~ret29#1;havoc __utac_acc__Specification4_spec__1_#t~ret29#1; 2100#L566 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~4#1); 2098#L566-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 2097#L728 assume { :end_inline_timeShift } true; 2004#L969-2 [2022-11-25 17:31:38,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:31:38,990 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-11-25 17:31:38,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:31:38,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573196582] [2022-11-25 17:31:38,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:31:38,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:31:39,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:31:39,000 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:31:39,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:31:39,010 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:31:39,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:31:39,011 INFO L85 PathProgramCache]: Analyzing trace with hash 1645272579, now seen corresponding path program 1 times [2022-11-25 17:31:39,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:31:39,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898562394] [2022-11-25 17:31:39,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:31:39,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:31:39,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:31:39,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:31:39,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:31:39,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898562394] [2022-11-25 17:31:39,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898562394] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:31:39,063 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:31:39,063 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 17:31:39,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628546813] [2022-11-25 17:31:39,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:31:39,064 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-25 17:31:39,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:31:39,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 17:31:39,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 17:31:39,065 INFO L87 Difference]: Start difference. First operand 363 states and 457 transitions. cyclomatic complexity: 97 Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:31:39,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:31:39,243 INFO L93 Difference]: Finished difference Result 1039 states and 1285 transitions. [2022-11-25 17:31:39,243 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1039 states and 1285 transitions. [2022-11-25 17:31:39,252 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 741 [2022-11-25 17:31:39,259 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1039 states to 1039 states and 1285 transitions. [2022-11-25 17:31:39,259 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1039 [2022-11-25 17:31:39,261 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1039 [2022-11-25 17:31:39,261 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1039 states and 1285 transitions. [2022-11-25 17:31:39,263 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:31:39,263 INFO L218 hiAutomatonCegarLoop]: Abstraction has 1039 states and 1285 transitions. [2022-11-25 17:31:39,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1039 states and 1285 transitions. [2022-11-25 17:31:39,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1039 to 381. [2022-11-25 17:31:39,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 381 states have (on average 1.246719160104987) internal successors, (475), 380 states have internal predecessors, (475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:31:39,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 475 transitions. [2022-11-25 17:31:39,286 INFO L240 hiAutomatonCegarLoop]: Abstraction has 381 states and 475 transitions. [2022-11-25 17:31:39,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 17:31:39,287 INFO L428 stractBuchiCegarLoop]: Abstraction has 381 states and 475 transitions. [2022-11-25 17:31:39,287 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-25 17:31:39,288 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 381 states and 475 transitions. [2022-11-25 17:31:39,290 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 267 [2022-11-25 17:31:39,291 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-25 17:31:39,291 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-25 17:31:39,292 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:31:39,292 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:31:39,292 INFO L748 eck$LassoCheckResult]: Stem: 3464#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 3427#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 3384#L542 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 3385#L535 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; 3370#L550 main_#t~ret27#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1; 3347#L506 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 3348#L479 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet51#1, test_#t~nondet52#1, test_#t~nondet53#1, test_#t~nondet54#1, test_~splverifierCounter~0#1, test_~tmp~11#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~11#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 3439#L969-2 [2022-11-25 17:31:39,293 INFO L750 eck$LassoCheckResult]: Loop: 3439#L969-2 assume !false; 3216#L970 assume test_~splverifierCounter~0#1 < 4; 3217#L971 test_~tmp~11#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 3349#L979 assume !(0 != test_~tmp~11#1); 3271#L979-2 test_~tmp___0~3#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1; 3318#L989 assume !(0 != test_~tmp___0~3#1); 3259#L989-2 test_~tmp___2~0#1 := test_#t~nondet53#1;havoc test_#t~nondet53#1; 3260#L999 assume 0 != test_~tmp___2~0#1; 3416#L1005-2 assume { :begin_inline_timeShift } true; 3417#L711 assume !(0 != ~pumpRunning~0); 3286#L711-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret38#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; 3287#L795 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret37#1, processEnvironment__wrappee__methaneQuery_~tmp~6#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~6#1; 3378#L769-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret36#1, processEnvironment__wrappee__highWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5#1; 3361#L743-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret49#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~9#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~12#1;havoc isHighWaterLevel_~tmp~9#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 3268#L672-3 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~8#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 3269#L677-3 isHighWaterLevel_#t~ret49#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~9#1 := isHighWaterLevel_#t~ret49#1;havoc isHighWaterLevel_#t~ret49#1; 3441#L914-9 assume !(0 != isHighWaterLevel_~tmp~9#1);isHighWaterLevel_~tmp___0~1#1 := 1; 3391#L914-11 isHighWaterLevel_~retValue_acc~12#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1; 3392#L920-3 processEnvironment__wrappee__highWaterSensor_#t~ret36#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~5#1 := processEnvironment__wrappee__highWaterSensor_#t~ret36#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret36#1; 3394#L747-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 3211#L735-6 assume { :end_inline_processEnvironment__wrappee__base } true; 3184#L743-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 3246#L769-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 3209#L795-1 assume { :end_inline_processEnvironment } true; 3210#L718-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret29#1, __utac_acc__Specification4_spec__1_#t~ret30#1, __utac_acc__Specification4_spec__1_~tmp~4#1, __utac_acc__Specification4_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification4_spec__1_~tmp~4#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; 3550#L664 __utac_acc__Specification4_spec__1_#t~ret29#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~4#1 := __utac_acc__Specification4_spec__1_#t~ret29#1;havoc __utac_acc__Specification4_spec__1_#t~ret29#1; 3548#L566 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~4#1); 3546#L566-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 3545#L728 assume { :end_inline_timeShift } true; 3439#L969-2 [2022-11-25 17:31:39,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:31:39,294 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2022-11-25 17:31:39,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:31:39,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570028214] [2022-11-25 17:31:39,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:31:39,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:31:39,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:31:39,304 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:31:39,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:31:39,313 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:31:39,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:31:39,314 INFO L85 PathProgramCache]: Analyzing trace with hash 1058466565, now seen corresponding path program 1 times [2022-11-25 17:31:39,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:31:39,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077947586] [2022-11-25 17:31:39,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:31:39,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:31:39,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:31:39,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:31:39,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:31:39,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077947586] [2022-11-25 17:31:39,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077947586] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:31:39,417 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:31:39,420 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 17:31:39,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096562217] [2022-11-25 17:31:39,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:31:39,422 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-25 17:31:39,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:31:39,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:31:39,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:31:39,424 INFO L87 Difference]: Start difference. First operand 381 states and 475 transitions. cyclomatic complexity: 97 Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:31:39,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:31:39,684 INFO L93 Difference]: Finished difference Result 907 states and 1123 transitions. [2022-11-25 17:31:39,684 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 907 states and 1123 transitions. [2022-11-25 17:31:39,692 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 653 [2022-11-25 17:31:39,697 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 907 states to 907 states and 1123 transitions. [2022-11-25 17:31:39,697 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 907 [2022-11-25 17:31:39,698 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 907 [2022-11-25 17:31:39,698 INFO L73 IsDeterministic]: Start isDeterministic. Operand 907 states and 1123 transitions. [2022-11-25 17:31:39,700 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:31:39,700 INFO L218 hiAutomatonCegarLoop]: Abstraction has 907 states and 1123 transitions. [2022-11-25 17:31:39,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 907 states and 1123 transitions. [2022-11-25 17:31:39,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 907 to 408. [2022-11-25 17:31:39,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 408 states have (on average 1.2303921568627452) internal successors, (502), 407 states have internal predecessors, (502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:31:39,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 502 transitions. [2022-11-25 17:31:39,715 INFO L240 hiAutomatonCegarLoop]: Abstraction has 408 states and 502 transitions. [2022-11-25 17:31:39,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 17:31:39,718 INFO L428 stractBuchiCegarLoop]: Abstraction has 408 states and 502 transitions. [2022-11-25 17:31:39,719 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-11-25 17:31:39,720 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 408 states and 502 transitions. [2022-11-25 17:31:39,722 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 285 [2022-11-25 17:31:39,722 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-25 17:31:39,722 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-25 17:31:39,723 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:31:39,723 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:31:39,724 INFO L748 eck$LassoCheckResult]: Stem: 4764#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 4726#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 4686#L542 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 4687#L535 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; 4676#L550 main_#t~ret27#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1; 4648#L506 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 4649#L479 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet51#1, test_#t~nondet52#1, test_#t~nondet53#1, test_#t~nondet54#1, test_~splverifierCounter~0#1, test_~tmp~11#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~11#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 4585#L969-2 [2022-11-25 17:31:39,724 INFO L750 eck$LassoCheckResult]: Loop: 4585#L969-2 assume !false; 4518#L970 assume test_~splverifierCounter~0#1 < 4; 4519#L971 test_~tmp~11#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 4650#L979 assume !(0 != test_~tmp~11#1); 4572#L979-2 test_~tmp___0~3#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1; 4620#L989 assume !(0 != test_~tmp___0~3#1); 4560#L989-2 test_~tmp___2~0#1 := test_#t~nondet53#1;havoc test_#t~nondet53#1; 4561#L999 assume 0 != test_~tmp___2~0#1; 4716#L1005-2 assume { :begin_inline_timeShift } true; 4717#L711 assume !(0 != ~pumpRunning~0); 4588#L711-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret38#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; 4589#L795 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret37#1, processEnvironment__wrappee__methaneQuery_~tmp~6#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~6#1; 4679#L769-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret36#1, processEnvironment__wrappee__highWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5#1; 4667#L743-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret49#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~9#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~12#1;havoc isHighWaterLevel_~tmp~9#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 4569#L672-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 4571#L677-3 isHighWaterLevel_#t~ret49#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~9#1 := isHighWaterLevel_#t~ret49#1;havoc isHighWaterLevel_#t~ret49#1; 4797#L914-9 assume 0 != isHighWaterLevel_~tmp~9#1;isHighWaterLevel_~tmp___0~1#1 := 0; 4796#L914-11 isHighWaterLevel_~retValue_acc~12#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1; 4795#L920-3 processEnvironment__wrappee__highWaterSensor_#t~ret36#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~5#1 := processEnvironment__wrappee__highWaterSensor_#t~ret36#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret36#1; 4767#L747-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 4515#L735-6 assume { :end_inline_processEnvironment__wrappee__base } true; 4488#L743-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 4547#L769-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 4510#L795-1 assume { :end_inline_processEnvironment } true; 4511#L718-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret29#1, __utac_acc__Specification4_spec__1_#t~ret30#1, __utac_acc__Specification4_spec__1_~tmp~4#1, __utac_acc__Specification4_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification4_spec__1_~tmp~4#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; 4539#L664 __utac_acc__Specification4_spec__1_#t~ret29#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~4#1 := __utac_acc__Specification4_spec__1_#t~ret29#1;havoc __utac_acc__Specification4_spec__1_#t~ret29#1; 4540#L566 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~4#1); 4542#L566-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 4584#L728 assume { :end_inline_timeShift } true; 4585#L969-2 [2022-11-25 17:31:39,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:31:39,724 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 5 times [2022-11-25 17:31:39,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:31:39,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048627875] [2022-11-25 17:31:39,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:31:39,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:31:39,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:31:39,743 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:31:39,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:31:39,762 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:31:39,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:31:39,763 INFO L85 PathProgramCache]: Analyzing trace with hash -1369831039, now seen corresponding path program 1 times [2022-11-25 17:31:39,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:31:39,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680735894] [2022-11-25 17:31:39,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:31:39,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:31:39,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:31:39,771 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:31:39,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:31:39,795 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:31:39,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:31:39,795 INFO L85 PathProgramCache]: Analyzing trace with hash -1495565763, now seen corresponding path program 1 times [2022-11-25 17:31:39,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:31:39,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846867216] [2022-11-25 17:31:39,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:31:39,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:31:39,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:31:39,821 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:31:39,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:31:39,842 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:31:41,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:31:41,174 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:31:41,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:31:41,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 25.11 05:31:41 BoogieIcfgContainer [2022-11-25 17:31:41,279 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-25 17:31:41,280 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 17:31:41,280 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 17:31:41,280 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 17:31:41,281 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:31:37" (3/4) ... [2022-11-25 17:31:41,284 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-11-25 17:31:41,360 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92b3eebb-a560-4b89-ba14-bab8d7dacb42/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 17:31:41,360 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 17:31:41,361 INFO L158 Benchmark]: Toolchain (without parser) took 6005.17ms. Allocated memory was 174.1MB in the beginning and 209.7MB in the end (delta: 35.7MB). Free memory was 142.9MB in the beginning and 115.2MB in the end (delta: 27.8MB). Peak memory consumption was 64.0MB. Max. memory is 16.1GB. [2022-11-25 17:31:41,362 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 121.6MB. Free memory is still 94.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:31:41,362 INFO L158 Benchmark]: CACSL2BoogieTranslator took 628.46ms. Allocated memory is still 174.1MB. Free memory was 142.9MB in the beginning and 136.7MB in the end (delta: 6.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-25 17:31:41,363 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.95ms. Allocated memory is still 174.1MB. Free memory was 136.7MB in the beginning and 131.7MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 17:31:41,363 INFO L158 Benchmark]: Boogie Preprocessor took 58.85ms. Allocated memory is still 174.1MB. Free memory was 131.7MB in the beginning and 128.4MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 17:31:41,364 INFO L158 Benchmark]: RCFGBuilder took 1194.40ms. Allocated memory is still 174.1MB. Free memory was 128.4MB in the beginning and 88.5MB in the end (delta: 39.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2022-11-25 17:31:41,365 INFO L158 Benchmark]: BuchiAutomizer took 3951.46ms. Allocated memory was 174.1MB in the beginning and 209.7MB in the end (delta: 35.7MB). Free memory was 88.5MB in the beginning and 118.3MB in the end (delta: -29.8MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. [2022-11-25 17:31:41,365 INFO L158 Benchmark]: Witness Printer took 80.72ms. Allocated memory is still 209.7MB. Free memory was 118.3MB in the beginning and 115.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 17:31:41,368 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 121.6MB. Free memory is still 94.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 628.46ms. Allocated memory is still 174.1MB. Free memory was 142.9MB in the beginning and 136.7MB in the end (delta: 6.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 80.95ms. Allocated memory is still 174.1MB. Free memory was 136.7MB in the beginning and 131.7MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.85ms. Allocated memory is still 174.1MB. Free memory was 131.7MB in the beginning and 128.4MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1194.40ms. Allocated memory is still 174.1MB. Free memory was 128.4MB in the beginning and 88.5MB in the end (delta: 39.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 3951.46ms. Allocated memory was 174.1MB in the beginning and 209.7MB in the end (delta: 35.7MB). Free memory was 88.5MB in the beginning and 118.3MB in the end (delta: -29.8MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. * Witness Printer took 80.72ms. Allocated memory is still 209.7MB. Free memory was 118.3MB in the beginning and 115.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 408 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.8s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 2.5s. Construction of modules took 0.3s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 0. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 1461 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, 3439 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3439 mSDsluCounter, 5273 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3443 mSDsCounter, 109 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 314 IncrementalHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 109 mSolverCounterUnsat, 1830 mSDtfsCounter, 314 mSolverCounterSat, 0.1s 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: 969]: 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; [L416] int cleanupTimeShifts = 4; [L589] int waterLevel = 1; [L590] int methaneLevelCritical = 0; [L704] int pumpRunning = 0; [L705] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L497] int retValue_acc ; [L498] int tmp ; [L502] FCALL select_helpers() [L503] FCALL select_features() [L504] CALL, EXPR valid_product() [L546] int retValue_acc ; [L549] retValue_acc = 1 [L550] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L504] RET, EXPR valid_product() [L504] tmp = valid_product() [L506] COND TRUE \read(tmp) [L508] FCALL setup() [L509] CALL runTest() [L488] CALL test() [L960] int splverifierCounter ; [L961] int tmp ; [L962] int tmp___0 ; [L963] int tmp___1 ; [L964] int tmp___2 ; [L967] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L969] COND TRUE 1 [L971] COND TRUE splverifierCounter < 4 [L977] tmp = __VERIFIER_nondet_int() [L979] COND FALSE !(\read(tmp)) [L987] tmp___0 = __VERIFIER_nondet_int() [L989] COND FALSE !(\read(tmp___0)) [L997] tmp___2 = __VERIFIER_nondet_int() [L999] COND TRUE \read(tmp___2) [L1014] CALL timeShift() [L711] COND FALSE !(\read(pumpRunning)) [L718] COND TRUE \read(systemActive) [L720] CALL processEnvironment() [L792] int tmp ; [L795] COND FALSE !(\read(pumpRunning)) [L810] CALL processEnvironment__wrappee__methaneQuery() [L766] int tmp ; [L769] COND FALSE !(\read(pumpRunning)) [L784] CALL processEnvironment__wrappee__highWaterSensor() [L740] int tmp ; [L743] COND TRUE ! pumpRunning [L745] CALL, EXPR isHighWaterLevel() [L906] int retValue_acc ; [L907] int tmp ; [L908] int tmp___0 ; [L912] CALL, EXPR isHighWaterSensorDry() [L669] int retValue_acc ; [L672] COND TRUE waterLevel < 2 [L673] retValue_acc = 1 [L674] return (retValue_acc); [L912] RET, EXPR isHighWaterSensorDry() [L912] tmp = isHighWaterSensorDry() [L914] COND TRUE \read(tmp) [L915] tmp___0 = 0 [L919] retValue_acc = tmp___0 [L920] return (retValue_acc); [L745] RET, EXPR isHighWaterLevel() [L745] tmp = isHighWaterLevel() [L747] COND FALSE !(\read(tmp)) [L753] FCALL processEnvironment__wrappee__base() [L784] RET processEnvironment__wrappee__highWaterSensor() [L810] RET processEnvironment__wrappee__methaneQuery() [L720] RET processEnvironment() [L726] CALL __utac_acc__Specification4_spec__1() [L559] int tmp ; [L560] int tmp___0 ; [L564] CALL, EXPR getWaterLevel() [L660] int retValue_acc ; [L663] retValue_acc = waterLevel [L664] return (retValue_acc); [L564] RET, EXPR getWaterLevel() [L564] tmp = getWaterLevel() [L566] COND FALSE !(tmp == 0) [L726] RET __utac_acc__Specification4_spec__1() [L1014] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 969]: 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; [L416] int cleanupTimeShifts = 4; [L589] int waterLevel = 1; [L590] int methaneLevelCritical = 0; [L704] int pumpRunning = 0; [L705] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L497] int retValue_acc ; [L498] int tmp ; [L502] FCALL select_helpers() [L503] FCALL select_features() [L504] CALL, EXPR valid_product() [L546] int retValue_acc ; [L549] retValue_acc = 1 [L550] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L504] RET, EXPR valid_product() [L504] tmp = valid_product() [L506] COND TRUE \read(tmp) [L508] FCALL setup() [L509] CALL runTest() [L488] CALL test() [L960] int splverifierCounter ; [L961] int tmp ; [L962] int tmp___0 ; [L963] int tmp___1 ; [L964] int tmp___2 ; [L967] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L969] COND TRUE 1 [L971] COND TRUE splverifierCounter < 4 [L977] tmp = __VERIFIER_nondet_int() [L979] COND FALSE !(\read(tmp)) [L987] tmp___0 = __VERIFIER_nondet_int() [L989] COND FALSE !(\read(tmp___0)) [L997] tmp___2 = __VERIFIER_nondet_int() [L999] COND TRUE \read(tmp___2) [L1014] CALL timeShift() [L711] COND FALSE !(\read(pumpRunning)) [L718] COND TRUE \read(systemActive) [L720] CALL processEnvironment() [L792] int tmp ; [L795] COND FALSE !(\read(pumpRunning)) [L810] CALL processEnvironment__wrappee__methaneQuery() [L766] int tmp ; [L769] COND FALSE !(\read(pumpRunning)) [L784] CALL processEnvironment__wrappee__highWaterSensor() [L740] int tmp ; [L743] COND TRUE ! pumpRunning [L745] CALL, EXPR isHighWaterLevel() [L906] int retValue_acc ; [L907] int tmp ; [L908] int tmp___0 ; [L912] CALL, EXPR isHighWaterSensorDry() [L669] int retValue_acc ; [L672] COND TRUE waterLevel < 2 [L673] retValue_acc = 1 [L674] return (retValue_acc); [L912] RET, EXPR isHighWaterSensorDry() [L912] tmp = isHighWaterSensorDry() [L914] COND TRUE \read(tmp) [L915] tmp___0 = 0 [L919] retValue_acc = tmp___0 [L920] return (retValue_acc); [L745] RET, EXPR isHighWaterLevel() [L745] tmp = isHighWaterLevel() [L747] COND FALSE !(\read(tmp)) [L753] FCALL processEnvironment__wrappee__base() [L784] RET processEnvironment__wrappee__highWaterSensor() [L810] RET processEnvironment__wrappee__methaneQuery() [L720] RET processEnvironment() [L726] CALL __utac_acc__Specification4_spec__1() [L559] int tmp ; [L560] int tmp___0 ; [L564] CALL, EXPR getWaterLevel() [L660] int retValue_acc ; [L663] retValue_acc = waterLevel [L664] return (retValue_acc); [L564] RET, EXPR getWaterLevel() [L564] tmp = getWaterLevel() [L566] COND FALSE !(tmp == 0) [L726] RET __utac_acc__Specification4_spec__1() [L1014] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-11-25 17:31:41,414 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92b3eebb-a560-4b89-ba14-bab8d7dacb42/bin/uautomizer-ZsLfNo2U6R/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)