./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product48.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c2750d-4752-4c0e-9063-6cf57f372d13/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c2750d-4752-4c0e-9063-6cf57f372d13/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c2750d-4752-4c0e-9063-6cf57f372d13/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c2750d-4752-4c0e-9063-6cf57f372d13/bin/uautomizer-DrprNOufMa/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product48.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c2750d-4752-4c0e-9063-6cf57f372d13/bin/uautomizer-DrprNOufMa/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c2750d-4752-4c0e-9063-6cf57f372d13/bin/uautomizer-DrprNOufMa --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 797436b26f0180d1dd4048b2036765c1f76ffc9f34d72e35837e9efcc5780486 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-07 01:04:20,253 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-07 01:04:20,255 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-07 01:04:20,285 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-07 01:04:20,286 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-07 01:04:20,287 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-07 01:04:20,288 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-07 01:04:20,291 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-07 01:04:20,293 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-07 01:04:20,294 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-07 01:04:20,295 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-07 01:04:20,296 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-07 01:04:20,297 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-07 01:04:20,298 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-07 01:04:20,300 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-07 01:04:20,301 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-07 01:04:20,302 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-07 01:04:20,303 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-07 01:04:20,305 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-07 01:04:20,307 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-07 01:04:20,309 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-07 01:04:20,311 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-07 01:04:20,312 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-07 01:04:20,313 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-07 01:04:20,316 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-07 01:04:20,317 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-07 01:04:20,317 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-07 01:04:20,318 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-07 01:04:20,318 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-07 01:04:20,320 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-07 01:04:20,320 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-07 01:04:20,321 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-07 01:04:20,322 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-07 01:04:20,322 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-07 01:04:20,323 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-07 01:04:20,324 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-07 01:04:20,324 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-07 01:04:20,324 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-07 01:04:20,325 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-07 01:04:20,325 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-07 01:04:20,326 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-07 01:04:20,327 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c2750d-4752-4c0e-9063-6cf57f372d13/bin/uautomizer-DrprNOufMa/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-07 01:04:20,355 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-07 01:04:20,355 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-07 01:04:20,355 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-07 01:04:20,355 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-07 01:04:20,356 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-07 01:04:20,357 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-07 01:04:20,357 INFO L138 SettingsManager]: * Use SBE=true [2021-12-07 01:04:20,357 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-07 01:04:20,357 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-07 01:04:20,357 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-07 01:04:20,357 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-07 01:04:20,357 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-07 01:04:20,358 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-07 01:04:20,358 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-07 01:04:20,358 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-07 01:04:20,358 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-07 01:04:20,358 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-07 01:04:20,358 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-07 01:04:20,358 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-07 01:04:20,359 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-07 01:04:20,359 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-07 01:04:20,359 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-07 01:04:20,359 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-07 01:04:20,359 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-07 01:04:20,359 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-07 01:04:20,359 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-07 01:04:20,359 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-07 01:04:20,360 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-07 01:04:20,360 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-07 01:04:20,360 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-07 01:04:20,360 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-07 01:04:20,360 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-07 01:04:20,361 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-07 01:04:20,362 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_24c2750d-4752-4c0e-9063-6cf57f372d13/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c2750d-4752-4c0e-9063-6cf57f372d13/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 797436b26f0180d1dd4048b2036765c1f76ffc9f34d72e35837e9efcc5780486 [2021-12-07 01:04:20,543 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-07 01:04:20,558 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-07 01:04:20,560 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-07 01:04:20,561 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-07 01:04:20,562 INFO L275 PluginConnector]: CDTParser initialized [2021-12-07 01:04:20,562 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c2750d-4752-4c0e-9063-6cf57f372d13/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/product-lines/minepump_spec2_product48.cil.c [2021-12-07 01:04:20,611 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c2750d-4752-4c0e-9063-6cf57f372d13/bin/uautomizer-DrprNOufMa/data/5fe0a01f2/bcf3f2d34f27410e9bc479b8b83c16bf/FLAGbba9e446d [2021-12-07 01:04:21,025 INFO L306 CDTParser]: Found 1 translation units. [2021-12-07 01:04:21,026 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c2750d-4752-4c0e-9063-6cf57f372d13/sv-benchmarks/c/product-lines/minepump_spec2_product48.cil.c [2021-12-07 01:04:21,040 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c2750d-4752-4c0e-9063-6cf57f372d13/bin/uautomizer-DrprNOufMa/data/5fe0a01f2/bcf3f2d34f27410e9bc479b8b83c16bf/FLAGbba9e446d [2021-12-07 01:04:21,050 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c2750d-4752-4c0e-9063-6cf57f372d13/bin/uautomizer-DrprNOufMa/data/5fe0a01f2/bcf3f2d34f27410e9bc479b8b83c16bf [2021-12-07 01:04:21,051 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-07 01:04:21,052 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-07 01:04:21,053 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-07 01:04:21,054 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-07 01:04:21,056 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-07 01:04:21,056 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:04:21" (1/1) ... [2021-12-07 01:04:21,057 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3aa9669f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:04:21, skipping insertion in model container [2021-12-07 01:04:21,057 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:04:21" (1/1) ... [2021-12-07 01:04:21,062 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-07 01:04:21,099 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-07 01:04:21,282 WARN L230 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_24c2750d-4752-4c0e-9063-6cf57f372d13/sv-benchmarks/c/product-lines/minepump_spec2_product48.cil.c[17766,17779] [2021-12-07 01:04:21,286 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 01:04:21,293 INFO L203 MainTranslator]: Completed pre-run [2021-12-07 01:04:21,342 WARN L230 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_24c2750d-4752-4c0e-9063-6cf57f372d13/sv-benchmarks/c/product-lines/minepump_spec2_product48.cil.c[17766,17779] [2021-12-07 01:04:21,345 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 01:04:21,358 INFO L208 MainTranslator]: Completed translation [2021-12-07 01:04:21,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:04:21 WrapperNode [2021-12-07 01:04:21,359 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-07 01:04:21,360 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-07 01:04:21,360 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-07 01:04:21,360 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-07 01:04:21,365 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:04:21" (1/1) ... [2021-12-07 01:04:21,377 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:04:21" (1/1) ... [2021-12-07 01:04:21,406 INFO L137 Inliner]: procedures = 57, calls = 159, calls flagged for inlining = 56, calls inlined = 99, statements flattened = 733 [2021-12-07 01:04:21,407 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-07 01:04:21,407 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-07 01:04:21,407 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-07 01:04:21,407 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-07 01:04:21,414 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:04:21" (1/1) ... [2021-12-07 01:04:21,414 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:04:21" (1/1) ... [2021-12-07 01:04:21,417 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:04:21" (1/1) ... [2021-12-07 01:04:21,418 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:04:21" (1/1) ... [2021-12-07 01:04:21,427 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:04:21" (1/1) ... [2021-12-07 01:04:21,433 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:04:21" (1/1) ... [2021-12-07 01:04:21,435 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:04:21" (1/1) ... [2021-12-07 01:04:21,439 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-07 01:04:21,439 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-07 01:04:21,439 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-07 01:04:21,439 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-07 01:04:21,440 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:04:21" (1/1) ... [2021-12-07 01:04:21,446 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:04:21,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c2750d-4752-4c0e-9063-6cf57f372d13/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:04:21,464 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c2750d-4752-4c0e-9063-6cf57f372d13/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:04:21,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c2750d-4752-4c0e-9063-6cf57f372d13/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-07 01:04:21,492 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-07 01:04:21,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-07 01:04:21,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-07 01:04:21,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-07 01:04:21,545 INFO L236 CfgBuilder]: Building ICFG [2021-12-07 01:04:21,546 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-07 01:04:21,846 INFO L277 CfgBuilder]: Performing block encoding [2021-12-07 01:04:21,855 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-07 01:04:21,856 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-07 01:04:21,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:04:21 BoogieIcfgContainer [2021-12-07 01:04:21,858 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-07 01:04:21,859 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-07 01:04:21,859 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-07 01:04:21,863 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-07 01:04:21,864 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-07 01:04:21,864 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 01:04:21" (1/3) ... [2021-12-07 01:04:21,865 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@37c946a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 01:04:21, skipping insertion in model container [2021-12-07 01:04:21,865 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-07 01:04:21,865 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:04:21" (2/3) ... [2021-12-07 01:04:21,865 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@37c946a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 01:04:21, skipping insertion in model container [2021-12-07 01:04:21,866 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-07 01:04:21,866 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:04:21" (3/3) ... [2021-12-07 01:04:21,867 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product48.cil.c [2021-12-07 01:04:21,903 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-07 01:04:21,903 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-07 01:04:21,903 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-07 01:04:21,903 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-07 01:04:21,903 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-07 01:04:21,903 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-07 01:04:21,904 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-07 01:04:21,904 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-07 01:04:21,919 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 189 states, 188 states have (on average 1.3617021276595744) internal successors, (256), 188 states have internal predecessors, (256), 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) [2021-12-07 01:04:21,941 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 123 [2021-12-07 01:04:21,942 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-07 01:04:21,942 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-07 01:04:21,947 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:04:21,947 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:04:21,947 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-07 01:04:21,949 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 189 states, 188 states have (on average 1.3617021276595744) internal successors, (256), 188 states have internal predecessors, (256), 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) [2021-12-07 01:04:21,959 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 123 [2021-12-07 01:04:21,959 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-07 01:04:21,959 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-07 01:04:21,960 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:04:21,961 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:04:21,966 INFO L791 eck$LassoCheckResult]: Stem: 171#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(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 51#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret52#1, main_~retValue_acc~11#1, main_~tmp~9#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 57#L176true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 89#L169true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~4#1;havoc valid_product_~retValue_acc~4#1;valid_product_~retValue_acc~4#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~4#1; 124#L184true main_#t~ret52#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret52#1;havoc main_#t~ret52#1; 3#L983true assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 148#L959true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 168#L492true assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet10#1, test_#t~nondet11#1, test_#t~nondet12#1, test_#t~nondet13#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 106#L203-2true [2021-12-07 01:04:21,967 INFO L793 eck$LassoCheckResult]: Loop: 106#L203-2true assume !false; 156#L204true assume test_~splverifierCounter~0#1 < 4; 113#L205true test_~tmp~0#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1; 177#L213true assume !(0 != test_~tmp~0#1); 16#L213-2true test_~tmp___0~0#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1; 104#L223true assume !(0 != test_~tmp___0~0#1); 72#L223-2true test_~tmp___2~0#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1; 102#L233true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 34#L481true assume { :end_inline_startSystem } true; 82#L241-2true assume { :begin_inline_timeShift } true; 132#L274true assume !(0 != ~pumpRunning~0); 179#L274-2true assume !(0 != ~systemActive~0); 139#L281-1true assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret27#1, __utac_acc__Specification2_spec__2_#t~ret28#1, __utac_acc__Specification2_spec__2_~tmp~5#1, __utac_acc__Specification2_spec__2_~tmp___0~2#1;havoc __utac_acc__Specification2_spec__2_~tmp~5#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 153#L100-3true __utac_acc__Specification2_spec__2_#t~ret27#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~5#1 := __utac_acc__Specification2_spec__2_#t~ret27#1;havoc __utac_acc__Specification2_spec__2_#t~ret27#1; 105#L503true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~5#1);~methAndRunningLastTime~0 := 0; 95#L503-1true assume { :end_inline___utac_acc__Specification2_spec__2 } true; 121#L291true assume { :end_inline_timeShift } true; 106#L203-2true [2021-12-07 01:04:21,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:04:21,972 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2021-12-07 01:04:21,981 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:04:21,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782583026] [2021-12-07 01:04:21,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:04:21,983 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:04:22,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:04:22,083 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 01:04:22,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:04:22,136 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 01:04:22,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:04:22,139 INFO L85 PathProgramCache]: Analyzing trace with hash -360184183, now seen corresponding path program 1 times [2021-12-07 01:04:22,139 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:04:22,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642270342] [2021-12-07 01:04:22,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:04:22,140 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:04:22,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:04:22,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:04:22,198 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:04:22,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642270342] [2021-12-07 01:04:22,198 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642270342] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:04:22,199 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:04:22,199 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-07 01:04:22,199 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775331007] [2021-12-07 01:04:22,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:04:22,202 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-07 01:04:22,203 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:04:22,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 01:04:22,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 01:04:22,237 INFO L87 Difference]: Start difference. First operand has 189 states, 188 states have (on average 1.3617021276595744) internal successors, (256), 188 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2021-12-07 01:04:22,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:04:22,297 INFO L93 Difference]: Finished difference Result 362 states and 478 transitions. [2021-12-07 01:04:22,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 01:04:22,302 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 362 states and 478 transitions. [2021-12-07 01:04:22,310 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 236 [2021-12-07 01:04:22,318 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 362 states to 342 states and 457 transitions. [2021-12-07 01:04:22,319 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 342 [2021-12-07 01:04:22,320 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 342 [2021-12-07 01:04:22,321 INFO L73 IsDeterministic]: Start isDeterministic. Operand 342 states and 457 transitions. [2021-12-07 01:04:22,324 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 01:04:22,324 INFO L681 BuchiCegarLoop]: Abstraction has 342 states and 457 transitions. [2021-12-07 01:04:22,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states and 457 transitions. [2021-12-07 01:04:22,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 339. [2021-12-07 01:04:22,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 339 states have (on average 1.336283185840708) internal successors, (453), 338 states have internal predecessors, (453), 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) [2021-12-07 01:04:22,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 453 transitions. [2021-12-07 01:04:22,358 INFO L704 BuchiCegarLoop]: Abstraction has 339 states and 453 transitions. [2021-12-07 01:04:22,358 INFO L587 BuchiCegarLoop]: Abstraction has 339 states and 453 transitions. [2021-12-07 01:04:22,358 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-07 01:04:22,358 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 339 states and 453 transitions. [2021-12-07 01:04:22,361 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 233 [2021-12-07 01:04:22,361 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-07 01:04:22,362 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-07 01:04:22,362 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:04:22,363 INFO L843 BuchiCegarLoop]: 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] [2021-12-07 01:04:22,363 INFO L791 eck$LassoCheckResult]: Stem: 757#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(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 646#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret52#1, main_~retValue_acc~11#1, main_~tmp~9#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 647#L176 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 659#L169 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~4#1;havoc valid_product_~retValue_acc~4#1;valid_product_~retValue_acc~4#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~4#1; 697#L184 main_#t~ret52#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret52#1;havoc main_#t~ret52#1; 560#L983 assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 561#L959 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 742#L492 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet10#1, test_#t~nondet11#1, test_#t~nondet12#1, test_#t~nondet13#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 714#L203-2 [2021-12-07 01:04:22,363 INFO L793 eck$LassoCheckResult]: Loop: 714#L203-2 assume !false; 715#L204 assume test_~splverifierCounter~0#1 < 4; 801#L205 test_~tmp~0#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1; 896#L213 assume !(0 != test_~tmp~0#1); 894#L213-2 test_~tmp___0~0#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1; 892#L223 assume !(0 != test_~tmp___0~0#1); 889#L223-2 test_~tmp___2~0#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1; 887#L233 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet13#1;havoc test_#t~nondet13#1; 885#L241 assume !(0 != test_~tmp___1~0#1); 618#L241-2 assume { :begin_inline_timeShift } true; 881#L274 assume !(0 != ~pumpRunning~0); 878#L274-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret15#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 876#L332 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret14#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1#1; 874#L306-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 870#L298-3 assume { :end_inline_processEnvironment__wrappee__base } true; 843#L306-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 840#L332-1 assume { :end_inline_processEnvironment } true; 838#L281-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret27#1, __utac_acc__Specification2_spec__2_#t~ret28#1, __utac_acc__Specification2_spec__2_~tmp~5#1, __utac_acc__Specification2_spec__2_~tmp___0~2#1;havoc __utac_acc__Specification2_spec__2_~tmp~5#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 747#L100-3 __utac_acc__Specification2_spec__2_#t~ret27#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~5#1 := __utac_acc__Specification2_spec__2_#t~ret27#1;havoc __utac_acc__Specification2_spec__2_#t~ret27#1; 712#L503 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~5#1);~methAndRunningLastTime~0 := 0; 613#L503-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 704#L291 assume { :end_inline_timeShift } true; 714#L203-2 [2021-12-07 01:04:22,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:04:22,364 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2021-12-07 01:04:22,364 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:04:22,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650441925] [2021-12-07 01:04:22,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:04:22,365 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:04:22,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:04:22,385 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 01:04:22,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:04:22,409 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 01:04:22,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:04:22,410 INFO L85 PathProgramCache]: Analyzing trace with hash 81840663, now seen corresponding path program 1 times [2021-12-07 01:04:22,410 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:04:22,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522528360] [2021-12-07 01:04:22,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:04:22,411 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:04:22,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:04:22,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:04:22,430 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:04:22,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522528360] [2021-12-07 01:04:22,430 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522528360] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:04:22,431 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:04:22,431 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-07 01:04:22,431 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585500202] [2021-12-07 01:04:22,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:04:22,431 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-07 01:04:22,431 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:04:22,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 01:04:22,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 01:04:22,432 INFO L87 Difference]: Start difference. First operand 339 states and 453 transitions. cyclomatic complexity: 117 Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:04:22,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:04:22,486 INFO L93 Difference]: Finished difference Result 469 states and 606 transitions. [2021-12-07 01:04:22,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 01:04:22,487 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 469 states and 606 transitions. [2021-12-07 01:04:22,491 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 331 [2021-12-07 01:04:22,494 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 469 states to 469 states and 606 transitions. [2021-12-07 01:04:22,494 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 469 [2021-12-07 01:04:22,495 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 469 [2021-12-07 01:04:22,495 INFO L73 IsDeterministic]: Start isDeterministic. Operand 469 states and 606 transitions. [2021-12-07 01:04:22,497 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 01:04:22,498 INFO L681 BuchiCegarLoop]: Abstraction has 469 states and 606 transitions. [2021-12-07 01:04:22,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states and 606 transitions. [2021-12-07 01:04:22,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 469. [2021-12-07 01:04:22,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 469 states have (on average 1.2921108742004264) internal successors, (606), 468 states have internal predecessors, (606), 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) [2021-12-07 01:04:22,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 606 transitions. [2021-12-07 01:04:22,520 INFO L704 BuchiCegarLoop]: Abstraction has 469 states and 606 transitions. [2021-12-07 01:04:22,520 INFO L587 BuchiCegarLoop]: Abstraction has 469 states and 606 transitions. [2021-12-07 01:04:22,520 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-07 01:04:22,521 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 469 states and 606 transitions. [2021-12-07 01:04:22,527 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 331 [2021-12-07 01:04:22,527 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-07 01:04:22,528 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-07 01:04:22,528 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:04:22,529 INFO L843 BuchiCegarLoop]: 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] [2021-12-07 01:04:22,529 INFO L791 eck$LassoCheckResult]: Stem: 1587#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(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 1459#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret52#1, main_~retValue_acc~11#1, main_~tmp~9#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 1460#L176 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1473#L169 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~4#1;havoc valid_product_~retValue_acc~4#1;valid_product_~retValue_acc~4#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~4#1; 1516#L184 main_#t~ret52#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret52#1;havoc main_#t~ret52#1; 1376#L983 assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 1377#L959 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 1572#L492 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet10#1, test_#t~nondet11#1, test_#t~nondet12#1, test_#t~nondet13#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1536#L203-2 [2021-12-07 01:04:22,529 INFO L793 eck$LassoCheckResult]: Loop: 1536#L203-2 assume !false; 1537#L204 assume test_~splverifierCounter~0#1 < 4; 1579#L205 test_~tmp~0#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1; 1701#L213 assume !(0 != test_~tmp~0#1); 1692#L213-2 test_~tmp___0~0#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1; 1675#L223 assume !(0 != test_~tmp___0~0#1); 1490#L223-2 test_~tmp___2~0#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1; 1491#L233 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet13#1;havoc test_#t~nondet13#1; 1442#L241 assume !(0 != test_~tmp___1~0#1); 1432#L241-2 assume { :begin_inline_timeShift } true; 1506#L274 assume !(0 != ~pumpRunning~0); 1558#L274-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret15#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 1438#L332 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret14#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1#1; 1439#L306-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret26#1, isHighWaterLevel_~retValue_acc~7#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~7#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; 1469#L140-1 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~2#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 1474#L145-1 isHighWaterLevel_#t~ret26#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret26#1;havoc isHighWaterLevel_#t~ret26#1; 1410#L451-3 assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~1#1 := 0; 1411#L451-5 isHighWaterLevel_~retValue_acc~7#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; 1389#L457-1 processEnvironment__wrappee__methaneQuery_#t~ret14#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__methaneQuery_~tmp~1#1 := processEnvironment__wrappee__methaneQuery_#t~ret14#1;havoc processEnvironment__wrappee__methaneQuery_#t~ret14#1; 1378#L310-3 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1380#L298-2 assume { :end_inline_processEnvironment__wrappee__base } true; 1650#L306-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 1396#L332-1 assume { :end_inline_processEnvironment } true; 1455#L281-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret27#1, __utac_acc__Specification2_spec__2_#t~ret28#1, __utac_acc__Specification2_spec__2_~tmp~5#1, __utac_acc__Specification2_spec__2_~tmp___0~2#1;havoc __utac_acc__Specification2_spec__2_~tmp~5#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 1567#L100-3 __utac_acc__Specification2_spec__2_#t~ret27#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~5#1 := __utac_acc__Specification2_spec__2_#t~ret27#1;havoc __utac_acc__Specification2_spec__2_#t~ret27#1; 1533#L503 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~5#1);~methAndRunningLastTime~0 := 0; 1427#L503-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 1521#L291 assume { :end_inline_timeShift } true; 1536#L203-2 [2021-12-07 01:04:22,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:04:22,530 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2021-12-07 01:04:22,530 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:04:22,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952230573] [2021-12-07 01:04:22,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:04:22,531 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:04:22,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:04:22,546 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 01:04:22,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:04:22,564 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 01:04:22,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:04:22,565 INFO L85 PathProgramCache]: Analyzing trace with hash -920325171, now seen corresponding path program 1 times [2021-12-07 01:04:22,565 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:04:22,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011962109] [2021-12-07 01:04:22,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:04:22,565 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:04:22,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:04:22,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:04:22,594 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:04:22,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011962109] [2021-12-07 01:04:22,594 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011962109] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:04:22,594 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:04:22,594 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 01:04:22,595 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386566884] [2021-12-07 01:04:22,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:04:22,595 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-07 01:04:22,595 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:04:22,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-07 01:04:22,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-07 01:04:22,596 INFO L87 Difference]: Start difference. First operand 469 states and 606 transitions. cyclomatic complexity: 140 Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 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) [2021-12-07 01:04:22,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:04:22,660 INFO L93 Difference]: Finished difference Result 1343 states and 1706 transitions. [2021-12-07 01:04:22,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 01:04:22,661 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1343 states and 1706 transitions. [2021-12-07 01:04:22,669 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 961 [2021-12-07 01:04:22,676 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1343 states to 1343 states and 1706 transitions. [2021-12-07 01:04:22,677 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1343 [2021-12-07 01:04:22,678 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1343 [2021-12-07 01:04:22,678 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1343 states and 1706 transitions. [2021-12-07 01:04:22,679 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 01:04:22,679 INFO L681 BuchiCegarLoop]: Abstraction has 1343 states and 1706 transitions. [2021-12-07 01:04:22,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1343 states and 1706 transitions. [2021-12-07 01:04:22,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1343 to 493. [2021-12-07 01:04:22,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 493 states, 493 states have (on average 1.2778904665314401) internal successors, (630), 492 states have internal predecessors, (630), 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) [2021-12-07 01:04:22,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 630 transitions. [2021-12-07 01:04:22,693 INFO L704 BuchiCegarLoop]: Abstraction has 493 states and 630 transitions. [2021-12-07 01:04:22,693 INFO L587 BuchiCegarLoop]: Abstraction has 493 states and 630 transitions. [2021-12-07 01:04:22,693 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-07 01:04:22,693 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 493 states and 630 transitions. [2021-12-07 01:04:22,695 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 347 [2021-12-07 01:04:22,695 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-07 01:04:22,695 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-07 01:04:22,696 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:04:22,696 INFO L843 BuchiCegarLoop]: 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] [2021-12-07 01:04:22,696 INFO L791 eck$LassoCheckResult]: Stem: 3425#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(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 3283#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret52#1, main_~retValue_acc~11#1, main_~tmp~9#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 3284#L176 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 3298#L169 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~4#1;havoc valid_product_~retValue_acc~4#1;valid_product_~retValue_acc~4#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~4#1; 3349#L184 main_#t~ret52#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret52#1;havoc main_#t~ret52#1; 3198#L983 assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 3199#L959 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 3407#L492 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet10#1, test_#t~nondet11#1, test_#t~nondet12#1, test_#t~nondet13#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 3424#L203-2 [2021-12-07 01:04:22,696 INFO L793 eck$LassoCheckResult]: Loop: 3424#L203-2 assume !false; 3505#L204 assume test_~splverifierCounter~0#1 < 4; 3504#L205 test_~tmp~0#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1; 3502#L213 assume !(0 != test_~tmp~0#1); 3457#L213-2 test_~tmp___0~0#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1; 3458#L223 assume !(0 != test_~tmp___0~0#1); 3451#L223-2 test_~tmp___2~0#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1; 3452#L233 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet13#1;havoc test_#t~nondet13#1; 3265#L241 assume !(0 != test_~tmp___1~0#1); 3255#L241-2 assume { :begin_inline_timeShift } true; 3338#L274 assume !(0 != ~pumpRunning~0); 3390#L274-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret15#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 3539#L332 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret14#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1#1; 3532#L306-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret26#1, isHighWaterLevel_~retValue_acc~7#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~7#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; 3299#L140-1 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~2#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 3300#L145-1 isHighWaterLevel_#t~ret26#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret26#1;havoc isHighWaterLevel_#t~ret26#1; 3232#L451-3 assume !(0 != isHighWaterLevel_~tmp~4#1);isHighWaterLevel_~tmp___0~1#1 := 1; 3233#L451-5 isHighWaterLevel_~retValue_acc~7#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; 3343#L457-1 processEnvironment__wrappee__methaneQuery_#t~ret14#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__methaneQuery_~tmp~1#1 := processEnvironment__wrappee__methaneQuery_#t~ret14#1;havoc processEnvironment__wrappee__methaneQuery_#t~ret14#1; 3523#L310-3 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 3517#L298-2 assume { :end_inline_processEnvironment__wrappee__base } true; 3513#L306-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 3490#L332-1 assume { :end_inline_processEnvironment } true; 3491#L281-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret27#1, __utac_acc__Specification2_spec__2_#t~ret28#1, __utac_acc__Specification2_spec__2_~tmp~5#1, __utac_acc__Specification2_spec__2_~tmp___0~2#1;havoc __utac_acc__Specification2_spec__2_~tmp~5#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 3486#L100-3 __utac_acc__Specification2_spec__2_#t~ret27#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~5#1 := __utac_acc__Specification2_spec__2_#t~ret27#1;havoc __utac_acc__Specification2_spec__2_#t~ret27#1; 3487#L503 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~5#1);~methAndRunningLastTime~0 := 0; 3507#L503-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 3506#L291 assume { :end_inline_timeShift } true; 3424#L203-2 [2021-12-07 01:04:22,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:04:22,697 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2021-12-07 01:04:22,697 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:04:22,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131799952] [2021-12-07 01:04:22,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:04:22,697 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:04:22,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:04:22,705 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 01:04:22,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:04:22,715 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 01:04:22,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:04:22,716 INFO L85 PathProgramCache]: Analyzing trace with hash -662159733, now seen corresponding path program 1 times [2021-12-07 01:04:22,716 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:04:22,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3139196] [2021-12-07 01:04:22,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:04:22,716 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:04:22,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:04:22,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:04:22,746 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:04:22,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3139196] [2021-12-07 01:04:22,747 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3139196] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:04:22,747 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:04:22,747 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-07 01:04:22,747 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020022129] [2021-12-07 01:04:22,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:04:22,748 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-07 01:04:22,748 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:04:22,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-07 01:04:22,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-07 01:04:22,749 INFO L87 Difference]: Start difference. First operand 493 states and 630 transitions. cyclomatic complexity: 140 Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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) [2021-12-07 01:04:22,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:04:22,842 INFO L93 Difference]: Finished difference Result 1456 states and 1860 transitions. [2021-12-07 01:04:22,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-07 01:04:22,843 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1456 states and 1860 transitions. [2021-12-07 01:04:22,851 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 1060 [2021-12-07 01:04:22,859 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1456 states to 1456 states and 1860 transitions. [2021-12-07 01:04:22,859 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1456 [2021-12-07 01:04:22,860 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1456 [2021-12-07 01:04:22,861 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1456 states and 1860 transitions. [2021-12-07 01:04:22,862 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 01:04:22,862 INFO L681 BuchiCegarLoop]: Abstraction has 1456 states and 1860 transitions. [2021-12-07 01:04:22,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1456 states and 1860 transitions. [2021-12-07 01:04:22,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1456 to 529. [2021-12-07 01:04:22,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 529 states, 529 states have (on average 1.2589792060491494) internal successors, (666), 528 states have internal predecessors, (666), 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) [2021-12-07 01:04:22,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 666 transitions. [2021-12-07 01:04:22,876 INFO L704 BuchiCegarLoop]: Abstraction has 529 states and 666 transitions. [2021-12-07 01:04:22,876 INFO L587 BuchiCegarLoop]: Abstraction has 529 states and 666 transitions. [2021-12-07 01:04:22,876 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-12-07 01:04:22,876 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 529 states and 666 transitions. [2021-12-07 01:04:22,878 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 371 [2021-12-07 01:04:22,878 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-07 01:04:22,878 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-07 01:04:22,879 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:04:22,879 INFO L843 BuchiCegarLoop]: 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] [2021-12-07 01:04:22,879 INFO L791 eck$LassoCheckResult]: Stem: 5415#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(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 5243#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret52#1, main_~retValue_acc~11#1, main_~tmp~9#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 5244#L176 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 5257#L169 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~4#1;havoc valid_product_~retValue_acc~4#1;valid_product_~retValue_acc~4#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~4#1; 5309#L184 main_#t~ret52#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret52#1;havoc main_#t~ret52#1; 5159#L983 assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 5160#L959 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 5383#L492 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet10#1, test_#t~nondet11#1, test_#t~nondet12#1, test_#t~nondet13#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 5412#L203-2 [2021-12-07 01:04:22,879 INFO L793 eck$LassoCheckResult]: Loop: 5412#L203-2 assume !false; 5509#L204 assume test_~splverifierCounter~0#1 < 4; 5341#L205 test_~tmp~0#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1; 5342#L213 assume !(0 != test_~tmp~0#1); 5182#L213-2 test_~tmp___0~0#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1; 5183#L223 assume !(0 != test_~tmp___0~0#1); 5168#L223-2 test_~tmp___2~0#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1; 5281#L233 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet13#1;havoc test_#t~nondet13#1; 5329#L241 assume !(0 != test_~tmp___1~0#1); 5215#L241-2 assume { :begin_inline_timeShift } true; 5296#L274 assume !(0 != ~pumpRunning~0); 5360#L274-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret15#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 5219#L332 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret14#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1#1; 5220#L306-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret26#1, isHighWaterLevel_~retValue_acc~7#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~7#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; 5580#L140-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 5579#L145-1 isHighWaterLevel_#t~ret26#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret26#1;havoc isHighWaterLevel_#t~ret26#1; 5578#L451-3 assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~1#1 := 0; 5301#L451-5 isHighWaterLevel_~retValue_acc~7#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; 5302#L457-1 processEnvironment__wrappee__methaneQuery_#t~ret14#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__methaneQuery_~tmp~1#1 := processEnvironment__wrappee__methaneQuery_#t~ret14#1;havoc processEnvironment__wrappee__methaneQuery_#t~ret14#1; 5477#L310-3 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 5216#L298-2 assume { :end_inline_processEnvironment__wrappee__base } true; 5184#L306-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 5181#L332-1 assume { :end_inline_processEnvironment } true; 5536#L281-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret27#1, __utac_acc__Specification2_spec__2_#t~ret28#1, __utac_acc__Specification2_spec__2_~tmp~5#1, __utac_acc__Specification2_spec__2_~tmp___0~2#1;havoc __utac_acc__Specification2_spec__2_~tmp~5#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 5537#L100-3 __utac_acc__Specification2_spec__2_#t~ret27#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~5#1 := __utac_acc__Specification2_spec__2_#t~ret27#1;havoc __utac_acc__Specification2_spec__2_#t~ret27#1; 5529#L503 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~5#1);~methAndRunningLastTime~0 := 0; 5527#L503-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 5521#L291 assume { :end_inline_timeShift } true; 5412#L203-2 [2021-12-07 01:04:22,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:04:22,879 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 5 times [2021-12-07 01:04:22,880 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:04:22,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088135206] [2021-12-07 01:04:22,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:04:22,880 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:04:22,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:04:22,887 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 01:04:22,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:04:22,896 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 01:04:22,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:04:22,896 INFO L85 PathProgramCache]: Analyzing trace with hash 90792079, now seen corresponding path program 1 times [2021-12-07 01:04:22,901 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:04:22,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548149417] [2021-12-07 01:04:22,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:04:22,902 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:04:22,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:04:22,906 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 01:04:22,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:04:22,912 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 01:04:22,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:04:22,913 INFO L85 PathProgramCache]: Analyzing trace with hash 1089862648, now seen corresponding path program 1 times [2021-12-07 01:04:22,913 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:04:22,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679144868] [2021-12-07 01:04:22,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:04:22,914 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:04:22,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:04:22,922 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 01:04:22,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:04:22,935 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 01:04:24,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 01:04:24 BoogieIcfgContainer [2021-12-07 01:04:24,906 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-07 01:04:24,906 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-07 01:04:24,906 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-07 01:04:24,906 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-07 01:04:24,906 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:04:21" (3/4) ... [2021-12-07 01:04:24,908 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-12-07 01:04:24,945 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c2750d-4752-4c0e-9063-6cf57f372d13/bin/uautomizer-DrprNOufMa/witness.graphml [2021-12-07 01:04:24,945 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-07 01:04:24,945 INFO L158 Benchmark]: Toolchain (without parser) took 3892.86ms. Allocated memory was 100.7MB in the beginning and 148.9MB in the end (delta: 48.2MB). Free memory was 56.9MB in the beginning and 51.2MB in the end (delta: 5.7MB). Peak memory consumption was 53.1MB. Max. memory is 16.1GB. [2021-12-07 01:04:24,946 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 100.7MB. Free memory is still 74.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-07 01:04:24,946 INFO L158 Benchmark]: CACSL2BoogieTranslator took 305.68ms. Allocated memory is still 100.7MB. Free memory was 56.7MB in the beginning and 65.6MB in the end (delta: -8.8MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. [2021-12-07 01:04:24,946 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.05ms. Allocated memory is still 100.7MB. Free memory was 65.6MB in the beginning and 61.8MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-07 01:04:24,946 INFO L158 Benchmark]: Boogie Preprocessor took 31.50ms. Allocated memory is still 100.7MB. Free memory was 61.8MB in the beginning and 59.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-07 01:04:24,947 INFO L158 Benchmark]: RCFGBuilder took 419.19ms. Allocated memory was 100.7MB in the beginning and 121.6MB in the end (delta: 21.0MB). Free memory was 59.3MB in the beginning and 96.1MB in the end (delta: -36.8MB). Peak memory consumption was 29.8MB. Max. memory is 16.1GB. [2021-12-07 01:04:24,947 INFO L158 Benchmark]: BuchiAutomizer took 3046.38ms. Allocated memory was 121.6MB in the beginning and 148.9MB in the end (delta: 27.3MB). Free memory was 95.4MB in the beginning and 54.3MB in the end (delta: 41.1MB). Peak memory consumption was 78.4MB. Max. memory is 16.1GB. [2021-12-07 01:04:24,947 INFO L158 Benchmark]: Witness Printer took 38.84ms. Allocated memory is still 148.9MB. Free memory was 54.3MB in the beginning and 51.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-07 01:04:24,949 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 100.7MB. Free memory is still 74.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 305.68ms. Allocated memory is still 100.7MB. Free memory was 56.7MB in the beginning and 65.6MB in the end (delta: -8.8MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.05ms. Allocated memory is still 100.7MB. Free memory was 65.6MB in the beginning and 61.8MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.50ms. Allocated memory is still 100.7MB. Free memory was 61.8MB in the beginning and 59.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 419.19ms. Allocated memory was 100.7MB in the beginning and 121.6MB in the end (delta: 21.0MB). Free memory was 59.3MB in the beginning and 96.1MB in the end (delta: -36.8MB). Peak memory consumption was 29.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 3046.38ms. Allocated memory was 121.6MB in the beginning and 148.9MB in the end (delta: 27.3MB). Free memory was 95.4MB in the beginning and 54.3MB in the end (delta: 41.1MB). Peak memory consumption was 78.4MB. Max. memory is 16.1GB. * Witness Printer took 38.84ms. Allocated memory is still 148.9MB. Free memory was 54.3MB in the beginning and 51.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (4 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.4 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 529 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.9s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 2.4s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 1780 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 529 states and ocurred in iteration 4. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1658 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1658 mSDsluCounter, 3063 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1747 mSDsCounter, 73 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 192 IncrementalHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 73 mSolverCounterUnsat, 1316 mSDtfsCounter, 192 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI4 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 203]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, tmp=0, NULL=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@74402aab=0, head=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@19069f9d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7b68eb7e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@527982e9=0, tmp___0=0, NULL=1, retValue_acc=1, methaneLevelCritical=0, tmp=0, \result=0, retValue_acc=0, retValue_acc=0, \result=1, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5ebbc9c4=0, retValue_acc=1, tmp=1, tmp___2=0, tmp=1, methAndRunningLastTime=0, tmp=0, cleanupTimeShifts=4, \result=0, tmp=0, head=0, tmp___1=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7a53815c=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5f5f4c5=0, waterLevel=1, systemActive=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3ea1b472=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6ab8330b=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@23259518=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 203]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L57] int waterLevel = 1; [L58] int methaneLevelCritical = 0; [L266] int pumpRunning = 0; [L267] int systemActive = 1; [L486] int methAndRunningLastTime ; [L694] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L900] int cleanupTimeShifts = 4; [L974] int retValue_acc ; [L975] int tmp ; [L979] FCALL select_helpers() [L980] FCALL select_features() [L981] CALL, EXPR valid_product() [L180] int retValue_acc ; [L183] retValue_acc = 1 [L184] return (retValue_acc); [L981] RET, EXPR valid_product() [L981] tmp = valid_product() [L983] COND TRUE \read(tmp) [L985] FCALL setup() [L986] CALL runTest() [L967] CALL __utac_acc__Specification2_spec__1() [L491] methAndRunningLastTime = 0 [L967] RET __utac_acc__Specification2_spec__1() [L968] CALL test() [L194] int splverifierCounter ; [L195] int tmp ; [L196] int tmp___0 ; [L197] int tmp___1 ; [L198] int tmp___2 ; [L201] splverifierCounter = 0 Loop: [L203] COND TRUE 1 [L205] COND TRUE splverifierCounter < 4 [L211] tmp = __VERIFIER_nondet_int() [L213] COND FALSE !(\read(tmp)) [L221] tmp___0 = __VERIFIER_nondet_int() [L223] COND FALSE !(\read(tmp___0)) [L231] tmp___2 = __VERIFIER_nondet_int() [L233] COND FALSE !(\read(tmp___2)) [L239] tmp___1 = __VERIFIER_nondet_int() [L241] COND FALSE !(\read(tmp___1)) [L250] CALL timeShift() [L274] COND FALSE !(\read(pumpRunning)) [L281] COND TRUE \read(systemActive) [L283] CALL processEnvironment() [L329] int tmp ; [L332] COND FALSE !(\read(pumpRunning)) [L347] CALL processEnvironment__wrappee__methaneQuery() [L303] int tmp ; [L306] COND TRUE ! pumpRunning [L308] CALL, EXPR isHighWaterLevel() [L443] int retValue_acc ; [L444] int tmp ; [L445] int tmp___0 ; [L449] CALL, EXPR isHighWaterSensorDry() [L137] int retValue_acc ; [L140] COND TRUE waterLevel < 2 [L141] retValue_acc = 1 [L142] return (retValue_acc); [L449] RET, EXPR isHighWaterSensorDry() [L449] tmp = isHighWaterSensorDry() [L451] COND TRUE \read(tmp) [L452] tmp___0 = 0 [L456] retValue_acc = tmp___0 [L457] return (retValue_acc); [L308] RET, EXPR isHighWaterLevel() [L308] tmp = isHighWaterLevel() [L310] COND FALSE !(\read(tmp)) [L316] FCALL processEnvironment__wrappee__base() [L347] RET processEnvironment__wrappee__methaneQuery() [L283] RET processEnvironment() [L289] CALL __utac_acc__Specification2_spec__2() [L496] int tmp ; [L497] int tmp___0 ; [L501] CALL, EXPR isMethaneLevelCritical() [L96] int retValue_acc ; [L99] retValue_acc = methaneLevelCritical [L100] return (retValue_acc); [L501] RET, EXPR isMethaneLevelCritical() [L501] tmp = isMethaneLevelCritical() [L503] COND FALSE !(\read(tmp)) [L519] methAndRunningLastTime = 0 [L289] RET __utac_acc__Specification2_spec__2() [L250] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-12-07 01:04:24,984 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24c2750d-4752-4c0e-9063-6cf57f372d13/bin/uautomizer-DrprNOufMa/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)