./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product41.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb529272-c00d-47ac-a30a-6f4638ade740/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb529272-c00d-47ac-a30a-6f4638ade740/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb529272-c00d-47ac-a30a-6f4638ade740/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb529272-c00d-47ac-a30a-6f4638ade740/bin/uautomizer-ug76WZFUDN/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product41.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb529272-c00d-47ac-a30a-6f4638ade740/bin/uautomizer-ug76WZFUDN/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb529272-c00d-47ac-a30a-6f4638ade740/bin/uautomizer-ug76WZFUDN --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 6e630fd4f7f92b97a7712eadcda02cdabe0d357899fc48fb3e7885213e7a8b80 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 12:11:10,257 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:11:10,259 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:11:10,285 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:11:10,286 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:11:10,287 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:11:10,288 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:11:10,290 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:11:10,298 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:11:10,306 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:11:10,307 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:11:10,311 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:11:10,311 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:11:10,312 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:11:10,313 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:11:10,314 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:11:10,315 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:11:10,316 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:11:10,318 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:11:10,327 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:11:10,329 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:11:10,332 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:11:10,335 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:11:10,336 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:11:10,347 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:11:10,347 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:11:10,347 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:11:10,350 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:11:10,350 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:11:10,351 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:11:10,351 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:11:10,352 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:11:10,354 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:11:10,355 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:11:10,356 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:11:10,357 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:11:10,358 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:11:10,358 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:11:10,358 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:11:10,359 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:11:10,360 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:11:10,361 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb529272-c00d-47ac-a30a-6f4638ade740/bin/uautomizer-ug76WZFUDN/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-11-20 12:11:10,405 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:11:10,405 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:11:10,406 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:11:10,406 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:11:10,407 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:11:10,407 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:11:10,408 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:11:10,408 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-20 12:11:10,408 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-20 12:11:10,408 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-20 12:11:10,409 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-20 12:11:10,410 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-20 12:11:10,410 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-20 12:11:10,410 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:11:10,410 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 12:11:10,410 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 12:11:10,411 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:11:10,411 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 12:11:10,411 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:11:10,411 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-20 12:11:10,411 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-20 12:11:10,411 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-20 12:11:10,411 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 12:11:10,412 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:11:10,412 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-20 12:11:10,412 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:11:10,412 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-20 12:11:10,412 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:11:10,412 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:11:10,413 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:11:10,413 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 12:11:10,414 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-20 12:11:10,414 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_cb529272-c00d-47ac-a30a-6f4638ade740/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb529272-c00d-47ac-a30a-6f4638ade740/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6e630fd4f7f92b97a7712eadcda02cdabe0d357899fc48fb3e7885213e7a8b80 [2022-11-20 12:11:10,702 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:11:10,738 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:11:10,741 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:11:10,743 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:11:10,743 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:11:10,745 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb529272-c00d-47ac-a30a-6f4638ade740/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/product-lines/minepump_spec5_product41.cil.c [2022-11-20 12:11:14,093 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:11:14,364 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:11:14,365 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb529272-c00d-47ac-a30a-6f4638ade740/sv-benchmarks/c/product-lines/minepump_spec5_product41.cil.c [2022-11-20 12:11:14,393 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb529272-c00d-47ac-a30a-6f4638ade740/bin/uautomizer-ug76WZFUDN/data/de59bd5be/f2b159ea596c45a0b6bb0b4341ef8caa/FLAGc60905689 [2022-11-20 12:11:14,417 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb529272-c00d-47ac-a30a-6f4638ade740/bin/uautomizer-ug76WZFUDN/data/de59bd5be/f2b159ea596c45a0b6bb0b4341ef8caa [2022-11-20 12:11:14,422 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:11:14,425 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:11:14,429 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:11:14,429 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:11:14,434 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:11:14,435 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:11:14" (1/1) ... [2022-11-20 12:11:14,436 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6da8a576 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:11:14, skipping insertion in model container [2022-11-20 12:11:14,437 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:11:14" (1/1) ... [2022-11-20 12:11:14,447 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:11:14,520 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:11:14,896 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb529272-c00d-47ac-a30a-6f4638ade740/sv-benchmarks/c/product-lines/minepump_spec5_product41.cil.c[18234,18247] [2022-11-20 12:11:14,897 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:11:14,910 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:11:15,026 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb529272-c00d-47ac-a30a-6f4638ade740/sv-benchmarks/c/product-lines/minepump_spec5_product41.cil.c[18234,18247] [2022-11-20 12:11:15,026 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:11:15,059 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:11:15,060 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:11:15 WrapperNode [2022-11-20 12:11:15,061 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:11:15,063 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:11:15,063 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:11:15,063 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:11:15,072 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:11:15" (1/1) ... [2022-11-20 12:11:15,102 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:11:15" (1/1) ... [2022-11-20 12:11:15,142 INFO L138 Inliner]: procedures = 55, calls = 98, calls flagged for inlining = 51, calls inlined = 63, statements flattened = 436 [2022-11-20 12:11:15,143 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:11:15,144 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:11:15,144 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:11:15,144 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:11:15,158 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:11:15" (1/1) ... [2022-11-20 12:11:15,159 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:11:15" (1/1) ... [2022-11-20 12:11:15,181 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:11:15" (1/1) ... [2022-11-20 12:11:15,182 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:11:15" (1/1) ... [2022-11-20 12:11:15,201 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:11:15" (1/1) ... [2022-11-20 12:11:15,207 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:11:15" (1/1) ... [2022-11-20 12:11:15,209 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:11:15" (1/1) ... [2022-11-20 12:11:15,211 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:11:15" (1/1) ... [2022-11-20 12:11:15,229 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:11:15,231 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:11:15,231 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:11:15,231 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:11:15,232 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:11:15" (1/1) ... [2022-11-20 12:11:15,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:11:15,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb529272-c00d-47ac-a30a-6f4638ade740/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:11:15,268 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb529272-c00d-47ac-a30a-6f4638ade740/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:11:15,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb529272-c00d-47ac-a30a-6f4638ade740/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-20 12:11:15,310 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 12:11:15,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 12:11:15,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:11:15,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:11:15,404 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:11:15,407 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:11:15,893 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:11:15,901 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:11:15,901 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-20 12:11:15,904 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:11:15 BoogieIcfgContainer [2022-11-20 12:11:15,904 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:11:15,905 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-20 12:11:15,905 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-20 12:11:15,910 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-20 12:11:15,910 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 12:11:15,914 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 12:11:14" (1/3) ... [2022-11-20 12:11:15,916 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@42895576 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 12:11:15, skipping insertion in model container [2022-11-20 12:11:15,916 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 12:11:15,916 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:11:15" (2/3) ... [2022-11-20 12:11:15,919 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@42895576 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 12:11:15, skipping insertion in model container [2022-11-20 12:11:15,919 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 12:11:15,919 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:11:15" (3/3) ... [2022-11-20 12:11:15,926 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product41.cil.c [2022-11-20 12:11:16,014 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-20 12:11:16,014 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-20 12:11:16,014 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-20 12:11:16,015 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-20 12:11:16,015 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-20 12:11:16,015 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-20 12:11:16,015 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-20 12:11:16,015 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-20 12:11:16,020 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 127 states, 126 states have (on average 1.3650793650793651) internal successors, (172), 126 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:11:16,058 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 80 [2022-11-20 12:11:16,058 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 12:11:16,058 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 12:11:16,100 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:11:16,100 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:11:16,101 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-20 12:11:16,101 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 127 states, 126 states have (on average 1.3650793650793651) internal successors, (172), 126 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:11:16,110 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 80 [2022-11-20 12:11:16,110 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 12:11:16,110 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 12:11:16,112 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:11:16,112 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:11:16,120 INFO L748 eck$LassoCheckResult]: Stem: 118#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 43#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret12#1, main_~retValue_acc~3#1, main_~tmp~1#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; 22#L933true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 100#L926true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 106#L941true main_#t~ret12#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret12#1;havoc main_#t~ret12#1; 81#L291true assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; 122#L263true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 105#L59true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet25#1, test_#t~nondet26#1, test_#t~nondet27#1, test_#t~nondet28#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 15#L490-2true [2022-11-20 12:11:16,122 INFO L750 eck$LassoCheckResult]: Loop: 15#L490-2true assume !false; 4#L491true assume test_~splverifierCounter~0#1 < 4; 115#L492true test_~tmp~5#1 := test_#t~nondet25#1;havoc test_#t~nondet25#1; 116#L500true assume !(0 != test_~tmp~5#1); 119#L500-2true test_~tmp___0~2#1 := test_#t~nondet26#1;havoc test_#t~nondet26#1; 86#L510true assume !(0 != test_~tmp___0~2#1); 8#L510-2true test_~tmp___2~0#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 45#L520true assume 0 != test_~tmp___2~0#1; 103#L526-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret4#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;havoc isPumpRunning_~retValue_acc~5#1;isPumpRunning_~retValue_acc~5#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1; 40#L420true __utac_acc__Specification5_spec__2_#t~ret4#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret4#1;havoc __utac_acc__Specification5_spec__2_#t~ret4#1; 18#L69true assume { :end_inline___utac_acc__Specification5_spec__2 } true; 5#L317true assume !(0 != ~pumpRunning~0); 53#L317-2true assume !(0 != ~systemActive~0); 95#L324-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret5#1, __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~0#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 29#L183true __utac_acc__Specification5_spec__3_#t~ret5#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0#1 := __utac_acc__Specification5_spec__3_#t~ret5#1;havoc __utac_acc__Specification5_spec__3_#t~ret5#1; 11#L80true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0#1); 113#L80-1true assume { :end_inline___utac_acc__Specification5_spec__3 } true; 33#L334true assume { :end_inline_timeShift } true; 15#L490-2true [2022-11-20 12:11:16,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:11:16,130 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2022-11-20 12:11:16,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:11:16,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926856735] [2022-11-20 12:11:16,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:11:16,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:11:16,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:11:16,299 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:11:16,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:11:16,367 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:11:16,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:11:16,370 INFO L85 PathProgramCache]: Analyzing trace with hash 722021324, now seen corresponding path program 1 times [2022-11-20 12:11:16,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:11:16,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263325045] [2022-11-20 12:11:16,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:11:16,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:11:16,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:11:16,413 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:11:16,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:11:16,422 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:11:16,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:11:16,431 INFO L85 PathProgramCache]: Analyzing trace with hash -617331083, now seen corresponding path program 1 times [2022-11-20 12:11:16,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:11:16,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470459991] [2022-11-20 12:11:16,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:11:16,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:11:16,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:16,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:11:16,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:11:16,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470459991] [2022-11-20 12:11:16,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470459991] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:11:16,766 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:11:16,767 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:11:16,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097831144] [2022-11-20 12:11:16,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:11:17,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:11:17,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:11:17,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:11:17,065 INFO L87 Difference]: Start difference. First operand has 127 states, 126 states have (on average 1.3650793650793651) internal successors, (172), 126 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:11:17,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:11:17,153 INFO L93 Difference]: Finished difference Result 124 states and 158 transitions. [2022-11-20 12:11:17,154 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 124 states and 158 transitions. [2022-11-20 12:11:17,158 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 76 [2022-11-20 12:11:17,164 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 124 states to 114 states and 148 transitions. [2022-11-20 12:11:17,166 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 114 [2022-11-20 12:11:17,167 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 114 [2022-11-20 12:11:17,167 INFO L73 IsDeterministic]: Start isDeterministic. Operand 114 states and 148 transitions. [2022-11-20 12:11:17,168 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:11:17,169 INFO L218 hiAutomatonCegarLoop]: Abstraction has 114 states and 148 transitions. [2022-11-20 12:11:17,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states and 148 transitions. [2022-11-20 12:11:17,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2022-11-20 12:11:17,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 114 states have (on average 1.2982456140350878) internal successors, (148), 113 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:11:17,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 148 transitions. [2022-11-20 12:11:17,225 INFO L240 hiAutomatonCegarLoop]: Abstraction has 114 states and 148 transitions. [2022-11-20 12:11:17,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 12:11:17,234 INFO L428 stractBuchiCegarLoop]: Abstraction has 114 states and 148 transitions. [2022-11-20 12:11:17,235 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-20 12:11:17,235 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 114 states and 148 transitions. [2022-11-20 12:11:17,244 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 76 [2022-11-20 12:11:17,244 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 12:11:17,244 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 12:11:17,248 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:11:17,248 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:11:17,248 INFO L748 eck$LassoCheckResult]: Stem: 382#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 335#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret12#1, main_~retValue_acc~3#1, main_~tmp~1#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; 312#L933 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 313#L926 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 376#L941 main_#t~ret12#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret12#1;havoc main_#t~ret12#1; 368#L291 assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; 369#L263 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 378#L59 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet25#1, test_#t~nondet26#1, test_#t~nondet27#1, test_#t~nondet28#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 299#L490-2 [2022-11-20 12:11:17,249 INFO L750 eck$LassoCheckResult]: Loop: 299#L490-2 assume !false; 272#L491 assume test_~splverifierCounter~0#1 < 4; 273#L492 test_~tmp~5#1 := test_#t~nondet25#1;havoc test_#t~nondet25#1; 380#L500 assume !(0 != test_~tmp~5#1); 381#L500-2 test_~tmp___0~2#1 := test_#t~nondet26#1;havoc test_#t~nondet26#1; 371#L510 assume !(0 != test_~tmp___0~2#1); 282#L510-2 test_~tmp___2~0#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 283#L520 assume 0 != test_~tmp___2~0#1; 337#L526-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret4#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;havoc isPumpRunning_~retValue_acc~5#1;isPumpRunning_~retValue_acc~5#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1; 331#L420 __utac_acc__Specification5_spec__2_#t~ret4#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret4#1;havoc __utac_acc__Specification5_spec__2_#t~ret4#1; 304#L69 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 275#L317 assume !(0 != ~pumpRunning~0); 277#L317-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret13#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 349#L349 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 374#L341-1 assume { :end_inline_processEnvironment__wrappee__base } true; 317#L349-1 assume { :end_inline_processEnvironment } true; 318#L324-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret5#1, __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~0#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 321#L183 __utac_acc__Specification5_spec__3_#t~ret5#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0#1 := __utac_acc__Specification5_spec__3_#t~ret5#1;havoc __utac_acc__Specification5_spec__3_#t~ret5#1; 289#L80 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0#1); 291#L80-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 326#L334 assume { :end_inline_timeShift } true; 299#L490-2 [2022-11-20 12:11:17,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:11:17,250 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2022-11-20 12:11:17,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:11:17,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520068746] [2022-11-20 12:11:17,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:11:17,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:11:17,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:11:17,283 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:11:17,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:11:17,301 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:11:17,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:11:17,306 INFO L85 PathProgramCache]: Analyzing trace with hash 1959665261, now seen corresponding path program 1 times [2022-11-20 12:11:17,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:11:17,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062001544] [2022-11-20 12:11:17,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:11:17,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:11:17,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:17,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:11:17,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:11:17,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062001544] [2022-11-20 12:11:17,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062001544] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:11:17,355 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:11:17,355 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:11:17,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532059741] [2022-11-20 12:11:17,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:11:17,357 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-20 12:11:17,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:11:17,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:11:17,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:11:17,360 INFO L87 Difference]: Start difference. First operand 114 states and 148 transitions. cyclomatic complexity: 36 Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:11:17,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:11:17,483 INFO L93 Difference]: Finished difference Result 178 states and 225 transitions. [2022-11-20 12:11:17,484 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 178 states and 225 transitions. [2022-11-20 12:11:17,486 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 124 [2022-11-20 12:11:17,493 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 178 states to 178 states and 225 transitions. [2022-11-20 12:11:17,495 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 178 [2022-11-20 12:11:17,496 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 178 [2022-11-20 12:11:17,496 INFO L73 IsDeterministic]: Start isDeterministic. Operand 178 states and 225 transitions. [2022-11-20 12:11:17,499 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:11:17,500 INFO L218 hiAutomatonCegarLoop]: Abstraction has 178 states and 225 transitions. [2022-11-20 12:11:17,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states and 225 transitions. [2022-11-20 12:11:17,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 178. [2022-11-20 12:11:17,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 178 states have (on average 1.2640449438202248) internal successors, (225), 177 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:11:17,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 225 transitions. [2022-11-20 12:11:17,512 INFO L240 hiAutomatonCegarLoop]: Abstraction has 178 states and 225 transitions. [2022-11-20 12:11:17,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:11:17,514 INFO L428 stractBuchiCegarLoop]: Abstraction has 178 states and 225 transitions. [2022-11-20 12:11:17,514 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-20 12:11:17,514 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 178 states and 225 transitions. [2022-11-20 12:11:17,516 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 124 [2022-11-20 12:11:17,517 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 12:11:17,517 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 12:11:17,519 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:11:17,520 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:11:17,520 INFO L748 eck$LassoCheckResult]: Stem: 696#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 636#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret12#1, main_~retValue_acc~3#1, main_~tmp~1#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; 609#L933 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 610#L926 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 684#L941 main_#t~ret12#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret12#1;havoc main_#t~ret12#1; 674#L291 assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; 675#L263 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 688#L59 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet25#1, test_#t~nondet26#1, test_#t~nondet27#1, test_#t~nondet28#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 689#L490-2 [2022-11-20 12:11:17,520 INFO L750 eck$LassoCheckResult]: Loop: 689#L490-2 assume !false; 570#L491 assume test_~splverifierCounter~0#1 < 4; 571#L492 test_~tmp~5#1 := test_#t~nondet25#1;havoc test_#t~nondet25#1; 728#L500 assume !(0 != test_~tmp~5#1); 726#L500-2 test_~tmp___0~2#1 := test_#t~nondet26#1;havoc test_#t~nondet26#1; 724#L510 assume !(0 != test_~tmp___0~2#1); 722#L510-2 test_~tmp___2~0#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 720#L520 assume 0 != test_~tmp___2~0#1; 719#L526-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret4#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;havoc isPumpRunning_~retValue_acc~5#1;isPumpRunning_~retValue_acc~5#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1; 718#L420 __utac_acc__Specification5_spec__2_#t~ret4#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret4#1;havoc __utac_acc__Specification5_spec__2_#t~ret4#1; 601#L69 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 573#L317 assume !(0 != ~pumpRunning~0); 574#L317-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret13#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 649#L349 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret24#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~6#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; 676#L191 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 663#L196 isHighWaterLevel_#t~ret24#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret24#1;havoc isHighWaterLevel_#t~ret24#1; 597#L469 assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~1#1 := 0; 598#L469-2 isHighWaterLevel_~retValue_acc~6#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1; 627#L475 processEnvironment_#t~ret13#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~2#1 := processEnvironment_#t~ret13#1;havoc processEnvironment_#t~ret13#1; 670#L353 assume !(0 != processEnvironment_~tmp~2#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 682#L341 assume { :end_inline_processEnvironment__wrappee__base } true; 683#L349-1 assume { :end_inline_processEnvironment } true; 738#L324-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret5#1, __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~0#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 737#L183 __utac_acc__Specification5_spec__3_#t~ret5#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0#1 := __utac_acc__Specification5_spec__3_#t~ret5#1;havoc __utac_acc__Specification5_spec__3_#t~ret5#1; 735#L80 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0#1); 732#L80-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 731#L334 assume { :end_inline_timeShift } true; 689#L490-2 [2022-11-20 12:11:17,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:11:17,522 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2022-11-20 12:11:17,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:11:17,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960565757] [2022-11-20 12:11:17,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:11:17,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:11:17,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:11:17,551 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:11:17,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:11:17,566 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:11:17,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:11:17,569 INFO L85 PathProgramCache]: Analyzing trace with hash -1929325451, now seen corresponding path program 1 times [2022-11-20 12:11:17,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:11:17,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869090711] [2022-11-20 12:11:17,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:11:17,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:11:17,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:17,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:11:17,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:11:17,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869090711] [2022-11-20 12:11:17,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869090711] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:11:17,731 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:11:17,731 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:11:17,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084727964] [2022-11-20 12:11:17,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:11:17,734 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-20 12:11:17,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:11:17,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:11:17,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:11:17,736 INFO L87 Difference]: Start difference. First operand 178 states and 225 transitions. cyclomatic complexity: 49 Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:11:17,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:11:17,935 INFO L93 Difference]: Finished difference Result 481 states and 597 transitions. [2022-11-20 12:11:17,936 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 481 states and 597 transitions. [2022-11-20 12:11:17,946 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 315 [2022-11-20 12:11:17,953 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 481 states to 481 states and 597 transitions. [2022-11-20 12:11:17,953 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 481 [2022-11-20 12:11:17,955 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 481 [2022-11-20 12:11:17,955 INFO L73 IsDeterministic]: Start isDeterministic. Operand 481 states and 597 transitions. [2022-11-20 12:11:17,964 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:11:17,965 INFO L218 hiAutomatonCegarLoop]: Abstraction has 481 states and 597 transitions. [2022-11-20 12:11:17,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states and 597 transitions. [2022-11-20 12:11:17,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 346. [2022-11-20 12:11:17,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 346 states have (on average 1.239884393063584) internal successors, (429), 345 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:11:17,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 429 transitions. [2022-11-20 12:11:17,991 INFO L240 hiAutomatonCegarLoop]: Abstraction has 346 states and 429 transitions. [2022-11-20 12:11:17,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:11:17,995 INFO L428 stractBuchiCegarLoop]: Abstraction has 346 states and 429 transitions. [2022-11-20 12:11:17,995 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-20 12:11:17,995 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 346 states and 429 transitions. [2022-11-20 12:11:17,998 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 246 [2022-11-20 12:11:17,998 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 12:11:17,998 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 12:11:18,001 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:11:18,001 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:11:18,002 INFO L748 eck$LassoCheckResult]: Stem: 1372#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 1309#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret12#1, main_~retValue_acc~3#1, main_~tmp~1#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; 1282#L933 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1283#L926 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 1364#L941 main_#t~ret12#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret12#1;havoc main_#t~ret12#1; 1350#L291 assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; 1351#L263 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 1367#L59 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet25#1, test_#t~nondet26#1, test_#t~nondet27#1, test_#t~nondet28#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1269#L490-2 [2022-11-20 12:11:18,003 INFO L750 eck$LassoCheckResult]: Loop: 1269#L490-2 assume !false; 1245#L491 assume test_~splverifierCounter~0#1 < 4; 1246#L492 test_~tmp~5#1 := test_#t~nondet25#1;havoc test_#t~nondet25#1; 1369#L500 assume !(0 != test_~tmp~5#1); 1370#L500-2 test_~tmp___0~2#1 := test_#t~nondet26#1;havoc test_#t~nondet26#1; 1357#L510 assume !(0 != test_~tmp___0~2#1); 1254#L510-2 test_~tmp___2~0#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 1255#L520 assume 0 != test_~tmp___2~0#1; 1310#L526-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret4#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;havoc isPumpRunning_~retValue_acc~5#1;isPumpRunning_~retValue_acc~5#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1; 1366#L420 __utac_acc__Specification5_spec__2_#t~ret4#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret4#1;havoc __utac_acc__Specification5_spec__2_#t~ret4#1; 1580#L69 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 1552#L317 assume !(0 != ~pumpRunning~0); 1551#L317-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret13#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 1359#L349 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret24#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~6#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; 1352#L191 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 1339#L196 isHighWaterLevel_#t~ret24#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret24#1;havoc isHighWaterLevel_#t~ret24#1; 1270#L469 assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~1#1 := 0; 1271#L469-2 isHighWaterLevel_~retValue_acc~6#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1; 1300#L475 processEnvironment_#t~ret13#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~2#1 := processEnvironment_#t~ret13#1;havoc processEnvironment_#t~ret13#1; 1346#L353 assume !(0 != processEnvironment_~tmp~2#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1360#L341 assume { :end_inline_processEnvironment__wrappee__base } true; 1361#L349-1 assume { :end_inline_processEnvironment } true; 1362#L324-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret5#1, __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~0#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 1293#L183 __utac_acc__Specification5_spec__3_#t~ret5#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0#1 := __utac_acc__Specification5_spec__3_#t~ret5#1;havoc __utac_acc__Specification5_spec__3_#t~ret5#1; 1261#L80 assume 2 != __utac_acc__Specification5_spec__3_~tmp~0#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;havoc isPumpRunning_~retValue_acc~5#1;isPumpRunning_~retValue_acc~5#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1; 1262#L420-1 __utac_acc__Specification5_spec__3_#t~ret6#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~0#1 := __utac_acc__Specification5_spec__3_#t~ret6#1;havoc __utac_acc__Specification5_spec__3_#t~ret6#1; 1371#L84 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0#1); 1302#L80-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 1297#L334 assume { :end_inline_timeShift } true; 1269#L490-2 [2022-11-20 12:11:18,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:11:18,004 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2022-11-20 12:11:18,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:11:18,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961685783] [2022-11-20 12:11:18,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:11:18,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:11:18,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:11:18,041 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:11:18,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:11:18,050 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:11:18,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:11:18,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1325015344, now seen corresponding path program 1 times [2022-11-20 12:11:18,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:11:18,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350266787] [2022-11-20 12:11:18,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:11:18,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:11:18,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:11:18,068 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:11:18,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:11:18,088 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:11:18,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:11:18,094 INFO L85 PathProgramCache]: Analyzing trace with hash -2063535385, now seen corresponding path program 1 times [2022-11-20 12:11:18,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:11:18,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056158863] [2022-11-20 12:11:18,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:11:18,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:11:18,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:11:18,111 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:11:18,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:11:18,148 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:11:19,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:11:19,784 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:11:19,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:11:19,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 12:11:19 BoogieIcfgContainer [2022-11-20 12:11:19,869 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-20 12:11:19,870 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 12:11:19,870 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 12:11:19,870 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 12:11:19,871 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:11:15" (3/4) ... [2022-11-20 12:11:19,874 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-11-20 12:11:19,948 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb529272-c00d-47ac-a30a-6f4638ade740/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 12:11:19,948 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 12:11:19,949 INFO L158 Benchmark]: Toolchain (without parser) took 5524.18ms. Allocated memory is still 136.3MB. Free memory was 100.6MB in the beginning and 96.0MB in the end (delta: 4.7MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. [2022-11-20 12:11:19,949 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 104.9MB. Free memory is still 79.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:11:19,950 INFO L158 Benchmark]: CACSL2BoogieTranslator took 632.47ms. Allocated memory is still 136.3MB. Free memory was 100.6MB in the beginning and 82.3MB in the end (delta: 18.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-20 12:11:19,950 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.55ms. Allocated memory is still 136.3MB. Free memory was 81.8MB in the beginning and 79.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 12:11:19,950 INFO L158 Benchmark]: Boogie Preprocessor took 86.19ms. Allocated memory is still 136.3MB. Free memory was 79.3MB in the beginning and 77.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 12:11:19,951 INFO L158 Benchmark]: RCFGBuilder took 673.58ms. Allocated memory is still 136.3MB. Free memory was 77.2MB in the beginning and 57.6MB in the end (delta: 19.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-20 12:11:19,951 INFO L158 Benchmark]: BuchiAutomizer took 3964.07ms. Allocated memory is still 136.3MB. Free memory was 57.1MB in the beginning and 99.1MB in the end (delta: -42.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:11:19,951 INFO L158 Benchmark]: Witness Printer took 78.45ms. Allocated memory is still 136.3MB. Free memory was 99.1MB in the beginning and 96.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 12:11:19,953 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 104.9MB. Free memory is still 79.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 632.47ms. Allocated memory is still 136.3MB. Free memory was 100.6MB in the beginning and 82.3MB in the end (delta: 18.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 80.55ms. Allocated memory is still 136.3MB. Free memory was 81.8MB in the beginning and 79.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 86.19ms. Allocated memory is still 136.3MB. Free memory was 79.3MB in the beginning and 77.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 673.58ms. Allocated memory is still 136.3MB. Free memory was 77.2MB in the beginning and 57.6MB in the end (delta: 19.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * BuchiAutomizer took 3964.07ms. Allocated memory is still 136.3MB. Free memory was 57.1MB in the beginning and 99.1MB in the end (delta: -42.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 78.45ms. Allocated memory is still 136.3MB. Free memory was 99.1MB in the beginning and 96.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 346 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.8s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 3.0s. Construction of modules took 0.1s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 135 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1208 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1208 mSDsluCounter, 1041 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 534 mSDsCounter, 36 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 103 IncrementalHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 36 mSolverCounterUnsat, 507 mSDtfsCounter, 103 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 490]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L53] int switchedOnBeforeTS ; [L108] int waterLevel = 1; [L109] int methaneLevelCritical = 0; [L202] int cleanupTimeShifts = 4; [L307] int pumpRunning = 0; [L308] int systemActive = 1; [L714] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L282] int retValue_acc ; [L283] int tmp ; [L287] FCALL select_helpers() [L288] FCALL select_features() [L289] CALL, EXPR valid_product() [L937] int retValue_acc ; [L940] retValue_acc = 1 [L941] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L289] RET, EXPR valid_product() [L289] tmp = valid_product() [L291] COND TRUE \read(tmp) [L293] FCALL setup() [L294] CALL runTest() [L272] CALL __utac_acc__Specification5_spec__1() [L58] switchedOnBeforeTS = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L272] RET __utac_acc__Specification5_spec__1() [L273] CALL test() [L481] int splverifierCounter ; [L482] int tmp ; [L483] int tmp___0 ; [L484] int tmp___1 ; [L485] int tmp___2 ; [L488] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] Loop: [L490] COND TRUE 1 [L492] COND TRUE splverifierCounter < 4 [L498] tmp = __VERIFIER_nondet_int() [L500] COND FALSE !(\read(tmp)) [L508] tmp___0 = __VERIFIER_nondet_int() [L510] COND FALSE !(\read(tmp___0)) [L518] tmp___2 = __VERIFIER_nondet_int() [L520] COND TRUE \read(tmp___2) [L533] CALL timeShift() [L315] CALL __utac_acc__Specification5_spec__2() [L67] CALL, EXPR isPumpRunning() [L416] int retValue_acc ; [L419] retValue_acc = pumpRunning [L420] return (retValue_acc); [L67] RET, EXPR isPumpRunning() [L67] switchedOnBeforeTS = isPumpRunning() [L315] RET __utac_acc__Specification5_spec__2() [L317] COND FALSE !(\read(pumpRunning)) [L324] COND TRUE \read(systemActive) [L326] CALL processEnvironment() [L346] int tmp ; [L349] COND TRUE ! pumpRunning [L351] CALL, EXPR isHighWaterLevel() [L461] int retValue_acc ; [L462] int tmp ; [L463] int tmp___0 ; [L467] CALL, EXPR isHighWaterSensorDry() [L188] int retValue_acc ; [L191] COND TRUE waterLevel < 2 [L192] retValue_acc = 1 [L193] return (retValue_acc); [L467] RET, EXPR isHighWaterSensorDry() [L467] tmp = isHighWaterSensorDry() [L469] COND TRUE \read(tmp) [L470] tmp___0 = 0 [L474] retValue_acc = tmp___0 [L475] return (retValue_acc); [L351] RET, EXPR isHighWaterLevel() [L351] tmp = isHighWaterLevel() [L353] COND FALSE !(\read(tmp)) [L359] FCALL processEnvironment__wrappee__base() [L326] RET processEnvironment() [L332] CALL __utac_acc__Specification5_spec__3() [L73] int tmp ; [L74] int tmp___0 ; [L78] CALL, EXPR getWaterLevel() [L179] int retValue_acc ; [L182] retValue_acc = waterLevel [L183] return (retValue_acc); [L78] RET, EXPR getWaterLevel() [L78] tmp = getWaterLevel() [L80] COND TRUE tmp != 2 [L82] CALL, EXPR isPumpRunning() [L416] int retValue_acc ; [L419] retValue_acc = pumpRunning [L420] return (retValue_acc); [L82] RET, EXPR isPumpRunning() [L82] tmp___0 = isPumpRunning() [L84] COND FALSE !(\read(tmp___0)) [L332] RET __utac_acc__Specification5_spec__3() [L533] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 490]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L53] int switchedOnBeforeTS ; [L108] int waterLevel = 1; [L109] int methaneLevelCritical = 0; [L202] int cleanupTimeShifts = 4; [L307] int pumpRunning = 0; [L308] int systemActive = 1; [L714] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L282] int retValue_acc ; [L283] int tmp ; [L287] FCALL select_helpers() [L288] FCALL select_features() [L289] CALL, EXPR valid_product() [L937] int retValue_acc ; [L940] retValue_acc = 1 [L941] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L289] RET, EXPR valid_product() [L289] tmp = valid_product() [L291] COND TRUE \read(tmp) [L293] FCALL setup() [L294] CALL runTest() [L272] CALL __utac_acc__Specification5_spec__1() [L58] switchedOnBeforeTS = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L272] RET __utac_acc__Specification5_spec__1() [L273] CALL test() [L481] int splverifierCounter ; [L482] int tmp ; [L483] int tmp___0 ; [L484] int tmp___1 ; [L485] int tmp___2 ; [L488] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] Loop: [L490] COND TRUE 1 [L492] COND TRUE splverifierCounter < 4 [L498] tmp = __VERIFIER_nondet_int() [L500] COND FALSE !(\read(tmp)) [L508] tmp___0 = __VERIFIER_nondet_int() [L510] COND FALSE !(\read(tmp___0)) [L518] tmp___2 = __VERIFIER_nondet_int() [L520] COND TRUE \read(tmp___2) [L533] CALL timeShift() [L315] CALL __utac_acc__Specification5_spec__2() [L67] CALL, EXPR isPumpRunning() [L416] int retValue_acc ; [L419] retValue_acc = pumpRunning [L420] return (retValue_acc); [L67] RET, EXPR isPumpRunning() [L67] switchedOnBeforeTS = isPumpRunning() [L315] RET __utac_acc__Specification5_spec__2() [L317] COND FALSE !(\read(pumpRunning)) [L324] COND TRUE \read(systemActive) [L326] CALL processEnvironment() [L346] int tmp ; [L349] COND TRUE ! pumpRunning [L351] CALL, EXPR isHighWaterLevel() [L461] int retValue_acc ; [L462] int tmp ; [L463] int tmp___0 ; [L467] CALL, EXPR isHighWaterSensorDry() [L188] int retValue_acc ; [L191] COND TRUE waterLevel < 2 [L192] retValue_acc = 1 [L193] return (retValue_acc); [L467] RET, EXPR isHighWaterSensorDry() [L467] tmp = isHighWaterSensorDry() [L469] COND TRUE \read(tmp) [L470] tmp___0 = 0 [L474] retValue_acc = tmp___0 [L475] return (retValue_acc); [L351] RET, EXPR isHighWaterLevel() [L351] tmp = isHighWaterLevel() [L353] COND FALSE !(\read(tmp)) [L359] FCALL processEnvironment__wrappee__base() [L326] RET processEnvironment() [L332] CALL __utac_acc__Specification5_spec__3() [L73] int tmp ; [L74] int tmp___0 ; [L78] CALL, EXPR getWaterLevel() [L179] int retValue_acc ; [L182] retValue_acc = waterLevel [L183] return (retValue_acc); [L78] RET, EXPR getWaterLevel() [L78] tmp = getWaterLevel() [L80] COND TRUE tmp != 2 [L82] CALL, EXPR isPumpRunning() [L416] int retValue_acc ; [L419] retValue_acc = pumpRunning [L420] return (retValue_acc); [L82] RET, EXPR isPumpRunning() [L82] tmp___0 = isPumpRunning() [L84] COND FALSE !(\read(tmp___0)) [L332] RET __utac_acc__Specification5_spec__3() [L533] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-11-20 12:11:20,003 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb529272-c00d-47ac-a30a-6f4638ade740/bin/uautomizer-ug76WZFUDN/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)