./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product41.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 2329fc70 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_0f1d9dd0-3f0b-4aa7-91b6-e3016e210ecc/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1d9dd0-3f0b-4aa7-91b6-e3016e210ecc/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1d9dd0-3f0b-4aa7-91b6-e3016e210ecc/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1d9dd0-3f0b-4aa7-91b6-e3016e210ecc/bin/uautomizer-uyxdKDjOR8/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product41.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1d9dd0-3f0b-4aa7-91b6-e3016e210ecc/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1d9dd0-3f0b-4aa7-91b6-e3016e210ecc/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0cfed743c16ce3c8683c42b92f2e032d4ce7b489a9d3a5e140ec6101c472b3cb --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 22:06:54,324 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 22:06:54,326 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 22:06:54,339 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 22:06:54,339 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 22:06:54,340 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 22:06:54,341 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 22:06:54,342 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 22:06:54,343 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 22:06:54,344 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 22:06:54,344 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 22:06:54,345 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 22:06:54,345 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 22:06:54,346 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 22:06:54,347 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 22:06:54,348 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 22:06:54,348 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 22:06:54,349 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 22:06:54,350 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 22:06:54,351 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 22:06:54,352 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 22:06:54,353 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 22:06:54,354 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 22:06:54,355 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 22:06:54,357 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 22:06:54,357 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 22:06:54,358 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 22:06:54,358 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 22:06:54,359 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 22:06:54,359 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 22:06:54,359 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 22:06:54,360 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 22:06:54,361 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 22:06:54,361 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 22:06:54,362 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 22:06:54,362 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 22:06:54,362 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 22:06:54,363 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 22:06:54,363 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 22:06:54,363 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 22:06:54,364 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 22:06:54,365 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1d9dd0-3f0b-4aa7-91b6-e3016e210ecc/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-12-13 22:06:54,380 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 22:06:54,380 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 22:06:54,380 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 22:06:54,380 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 22:06:54,381 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 22:06:54,381 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 22:06:54,381 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 22:06:54,382 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-12-13 22:06:54,382 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-12-13 22:06:54,382 INFO L138 SettingsManager]: * Use old map elimination=false [2022-12-13 22:06:54,382 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-12-13 22:06:54,382 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-12-13 22:06:54,382 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-12-13 22:06:54,382 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 22:06:54,383 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 22:06:54,383 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 22:06:54,383 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 22:06:54,383 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 22:06:54,383 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 22:06:54,383 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-12-13 22:06:54,384 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-12-13 22:06:54,384 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-12-13 22:06:54,384 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 22:06:54,384 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 22:06:54,384 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-12-13 22:06:54,384 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 22:06:54,384 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-12-13 22:06:54,385 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 22:06:54,385 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 22:06:54,385 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 22:06:54,385 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 22:06:54,386 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-12-13 22:06:54,386 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_0f1d9dd0-3f0b-4aa7-91b6-e3016e210ecc/bin/uautomizer-uyxdKDjOR8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1d9dd0-3f0b-4aa7-91b6-e3016e210ecc/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0cfed743c16ce3c8683c42b92f2e032d4ce7b489a9d3a5e140ec6101c472b3cb [2022-12-13 22:06:54,553 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 22:06:54,569 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 22:06:54,571 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 22:06:54,572 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 22:06:54,572 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 22:06:54,573 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1d9dd0-3f0b-4aa7-91b6-e3016e210ecc/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/product-lines/minepump_spec3_product41.cil.c [2022-12-13 22:06:57,214 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 22:06:57,370 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 22:06:57,370 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1d9dd0-3f0b-4aa7-91b6-e3016e210ecc/sv-benchmarks/c/product-lines/minepump_spec3_product41.cil.c [2022-12-13 22:06:57,378 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1d9dd0-3f0b-4aa7-91b6-e3016e210ecc/bin/uautomizer-uyxdKDjOR8/data/4054868a3/5a375633634b4b6aa4d031c0e609b05a/FLAGfc0fbbaeb [2022-12-13 22:06:57,387 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1d9dd0-3f0b-4aa7-91b6-e3016e210ecc/bin/uautomizer-uyxdKDjOR8/data/4054868a3/5a375633634b4b6aa4d031c0e609b05a [2022-12-13 22:06:57,389 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 22:06:57,390 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 22:06:57,391 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 22:06:57,391 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 22:06:57,394 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 22:06:57,394 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 10:06:57" (1/1) ... [2022-12-13 22:06:57,395 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8e2f63b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:06:57, skipping insertion in model container [2022-12-13 22:06:57,395 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 10:06:57" (1/1) ... [2022-12-13 22:06:57,401 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 22:06:57,431 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 22:06:57,598 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_0f1d9dd0-3f0b-4aa7-91b6-e3016e210ecc/sv-benchmarks/c/product-lines/minepump_spec3_product41.cil.c[17978,17991] [2022-12-13 22:06:57,598 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 22:06:57,608 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 22:06:57,651 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_0f1d9dd0-3f0b-4aa7-91b6-e3016e210ecc/sv-benchmarks/c/product-lines/minepump_spec3_product41.cil.c[17978,17991] [2022-12-13 22:06:57,651 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 22:06:57,664 INFO L208 MainTranslator]: Completed translation [2022-12-13 22:06:57,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:06:57 WrapperNode [2022-12-13 22:06:57,664 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 22:06:57,665 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 22:06:57,665 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 22:06:57,665 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 22:06:57,682 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:06:57" (1/1) ... [2022-12-13 22:06:57,692 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:06:57" (1/1) ... [2022-12-13 22:06:57,719 INFO L138 Inliner]: procedures = 53, calls = 96, calls flagged for inlining = 49, calls inlined = 59, statements flattened = 429 [2022-12-13 22:06:57,719 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 22:06:57,719 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 22:06:57,720 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 22:06:57,720 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 22:06:57,726 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:06:57" (1/1) ... [2022-12-13 22:06:57,727 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:06:57" (1/1) ... [2022-12-13 22:06:57,728 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:06:57" (1/1) ... [2022-12-13 22:06:57,728 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:06:57" (1/1) ... [2022-12-13 22:06:57,732 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:06:57" (1/1) ... [2022-12-13 22:06:57,735 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:06:57" (1/1) ... [2022-12-13 22:06:57,737 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:06:57" (1/1) ... [2022-12-13 22:06:57,738 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:06:57" (1/1) ... [2022-12-13 22:06:57,739 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 22:06:57,740 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 22:06:57,740 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 22:06:57,740 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 22:06:57,741 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:06:57" (1/1) ... [2022-12-13 22:06:57,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 22:06:57,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1d9dd0-3f0b-4aa7-91b6-e3016e210ecc/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 22:06:57,765 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1d9dd0-3f0b-4aa7-91b6-e3016e210ecc/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 22:06:57,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1d9dd0-3f0b-4aa7-91b6-e3016e210ecc/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-12-13 22:06:57,792 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 22:06:57,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 22:06:57,792 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 22:06:57,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 22:06:57,852 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 22:06:57,853 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 22:06:58,095 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 22:06:58,100 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 22:06:58,101 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-13 22:06:58,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:06:58 BoogieIcfgContainer [2022-12-13 22:06:58,102 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 22:06:58,103 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-12-13 22:06:58,103 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-12-13 22:06:58,106 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-12-13 22:06:58,107 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 22:06:58,107 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.12 10:06:57" (1/3) ... [2022-12-13 22:06:58,107 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6cfc6e30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 10:06:58, skipping insertion in model container [2022-12-13 22:06:58,107 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 22:06:58,108 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:06:57" (2/3) ... [2022-12-13 22:06:58,108 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6cfc6e30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 10:06:58, skipping insertion in model container [2022-12-13 22:06:58,108 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 22:06:58,108 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:06:58" (3/3) ... [2022-12-13 22:06:58,109 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product41.cil.c [2022-12-13 22:06:58,150 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-12-13 22:06:58,151 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-12-13 22:06:58,151 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-12-13 22:06:58,151 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-12-13 22:06:58,151 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-12-13 22:06:58,151 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-12-13 22:06:58,151 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-12-13 22:06:58,151 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-12-13 22:06:58,154 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 123 states, 122 states have (on average 1.3770491803278688) internal successors, (168), 122 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:06:58,171 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 78 [2022-12-13 22:06:58,171 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 22:06:58,172 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 22:06:58,176 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:06:58,176 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:06:58,177 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-12-13 22:06:58,177 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 123 states, 122 states have (on average 1.3770491803278688) internal successors, (168), 122 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:06:58,181 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 78 [2022-12-13 22:06:58,181 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 22:06:58,181 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 22:06:58,182 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:06:58,182 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:06:58,186 INFO L748 eck$LassoCheckResult]: Stem: 33#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 38#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret29#1, main_~retValue_acc~8#1, main_~tmp~5#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 29#select_helpers_returnLabel#1true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 99#select_features_returnLabel#1true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 87#valid_product_returnLabel#1true main_#t~ret29#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret29#1;havoc main_#t~ret29#1; 54#L548true assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 66#setup_returnLabel#1true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_#t~nondet20#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 72#L281-2true [2022-12-13 22:06:58,186 INFO L750 eck$LassoCheckResult]: Loop: 72#L281-2true assume !false; 7#L282true assume test_~splverifierCounter~0#1 < 4; 94#L283true test_~tmp~3#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; 76#L291true assume !(0 != test_~tmp~3#1); 75#L291-2true test_~tmp___0~1#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; 86#L301true assume !(0 != test_~tmp___0~1#1); 30#L301-2true test_~tmp___2~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 45#L311true assume 0 != test_~tmp___2~0#1; 43#L317-2true assume { :begin_inline_timeShift } true; 23#L105true assume !(0 != ~pumpRunning~0); 39#L105-2true assume !(0 != ~systemActive~0); 62#L112-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret21#1, __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_#t~ret23#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~4#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;isMethaneLevelCritical_~retValue_acc~5#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~5#1; 65#isMethaneLevelCritical_returnLabel#2true __utac_acc__Specification3_spec__1_#t~ret21#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4#1 := __utac_acc__Specification3_spec__1_#t~ret21#1;havoc __utac_acc__Specification3_spec__1_#t~ret21#1; 105#L347true assume 0 != __utac_acc__Specification3_spec__1_~tmp~4#1; 113#L353-1true assume { :end_inline___utac_acc__Specification3_spec__1 } true; 57#timeShift_returnLabel#1true assume { :end_inline_timeShift } true; 72#L281-2true [2022-12-13 22:06:58,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:06:58,191 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-12-13 22:06:58,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:06:58,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882412598] [2022-12-13 22:06:58,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:06:58,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:06:58,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:06:58,268 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 22:06:58,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:06:58,292 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 22:06:58,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:06:58,294 INFO L85 PathProgramCache]: Analyzing trace with hash -325980650, now seen corresponding path program 1 times [2022-12-13 22:06:58,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:06:58,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513324024] [2022-12-13 22:06:58,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:06:58,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:06:58,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:06:58,301 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 22:06:58,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:06:58,308 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 22:06:58,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:06:58,309 INFO L85 PathProgramCache]: Analyzing trace with hash 1029438426, now seen corresponding path program 1 times [2022-12-13 22:06:58,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:06:58,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059196826] [2022-12-13 22:06:58,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:06:58,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:06:58,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:06:58,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:06:58,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:06:58,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059196826] [2022-12-13 22:06:58,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059196826] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:06:58,452 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:06:58,453 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 22:06:58,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685654255] [2022-12-13 22:06:58,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:06:58,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:06:58,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 22:06:58,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 22:06:58,582 INFO L87 Difference]: Start difference. First operand has 123 states, 122 states have (on average 1.3770491803278688) internal successors, (168), 122 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:06:58,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:06:58,640 INFO L93 Difference]: Finished difference Result 120 states and 154 transitions. [2022-12-13 22:06:58,642 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 120 states and 154 transitions. [2022-12-13 22:06:58,645 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 74 [2022-12-13 22:06:58,656 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 120 states to 110 states and 144 transitions. [2022-12-13 22:06:58,657 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 110 [2022-12-13 22:06:58,658 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 110 [2022-12-13 22:06:58,658 INFO L73 IsDeterministic]: Start isDeterministic. Operand 110 states and 144 transitions. [2022-12-13 22:06:58,659 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 22:06:58,659 INFO L218 hiAutomatonCegarLoop]: Abstraction has 110 states and 144 transitions. [2022-12-13 22:06:58,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states and 144 transitions. [2022-12-13 22:06:58,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2022-12-13 22:06:58,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 110 states have (on average 1.309090909090909) internal successors, (144), 109 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:06:58,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 144 transitions. [2022-12-13 22:06:58,690 INFO L240 hiAutomatonCegarLoop]: Abstraction has 110 states and 144 transitions. [2022-12-13 22:06:58,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 22:06:58,694 INFO L428 stractBuchiCegarLoop]: Abstraction has 110 states and 144 transitions. [2022-12-13 22:06:58,695 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-12-13 22:06:58,695 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 110 states and 144 transitions. [2022-12-13 22:06:58,696 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 74 [2022-12-13 22:06:58,697 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 22:06:58,697 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 22:06:58,697 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:06:58,697 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:06:58,698 INFO L748 eck$LassoCheckResult]: Stem: 307#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 308#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret29#1, main_~retValue_acc~8#1, main_~tmp~5#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 302#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 303#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 359#valid_product_returnLabel#1 main_#t~ret29#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret29#1;havoc main_#t~ret29#1; 328#L548 assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 329#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_#t~nondet20#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 334#L281-2 [2022-12-13 22:06:58,698 INFO L750 eck$LassoCheckResult]: Loop: 334#L281-2 assume !false; 267#L282 assume test_~splverifierCounter~0#1 < 4; 268#L283 test_~tmp~3#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; 351#L291 assume !(0 != test_~tmp~3#1); 349#L291-2 test_~tmp___0~1#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; 350#L301 assume !(0 != test_~tmp___0~1#1); 304#L301-2 test_~tmp___2~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 305#L311 assume 0 != test_~tmp___2~0#1; 275#L317-2 assume { :begin_inline_timeShift } true; 293#L105 assume !(0 != ~pumpRunning~0); 294#L105-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~0#1;havoc processEnvironment_~tmp~0#1; 315#L137 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 330#processEnvironment__wrappee__base_returnLabel#2 assume { :end_inline_processEnvironment__wrappee__base } true; 289#L137-1 assume { :end_inline_processEnvironment } true; 340#L112-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret21#1, __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_#t~ret23#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~4#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;isMethaneLevelCritical_~retValue_acc~5#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~5#1; 341#isMethaneLevelCritical_returnLabel#2 __utac_acc__Specification3_spec__1_#t~ret21#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4#1 := __utac_acc__Specification3_spec__1_#t~ret21#1;havoc __utac_acc__Specification3_spec__1_#t~ret21#1; 342#L347 assume 0 != __utac_acc__Specification3_spec__1_~tmp~4#1; 325#L353-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 333#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 334#L281-2 [2022-12-13 22:06:58,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:06:58,699 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-12-13 22:06:58,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:06:58,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383410019] [2022-12-13 22:06:58,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:06:58,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:06:58,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:06:58,709 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 22:06:58,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:06:58,718 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 22:06:58,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:06:58,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1621737013, now seen corresponding path program 1 times [2022-12-13 22:06:58,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:06:58,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553036731] [2022-12-13 22:06:58,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:06:58,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:06:58,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:06:58,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:06:58,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:06:58,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553036731] [2022-12-13 22:06:58,739 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553036731] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:06:58,739 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:06:58,739 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 22:06:58,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470887558] [2022-12-13 22:06:58,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:06:58,739 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-12-13 22:06:58,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:06:58,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 22:06:58,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 22:06:58,741 INFO L87 Difference]: Start difference. First operand 110 states and 144 transitions. cyclomatic complexity: 36 Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:06:58,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:06:58,780 INFO L93 Difference]: Finished difference Result 171 states and 218 transitions. [2022-12-13 22:06:58,780 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 171 states and 218 transitions. [2022-12-13 22:06:58,783 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 120 [2022-12-13 22:06:58,784 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 171 states to 171 states and 218 transitions. [2022-12-13 22:06:58,784 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 171 [2022-12-13 22:06:58,785 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 171 [2022-12-13 22:06:58,785 INFO L73 IsDeterministic]: Start isDeterministic. Operand 171 states and 218 transitions. [2022-12-13 22:06:58,786 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 22:06:58,786 INFO L218 hiAutomatonCegarLoop]: Abstraction has 171 states and 218 transitions. [2022-12-13 22:06:58,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states and 218 transitions. [2022-12-13 22:06:58,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2022-12-13 22:06:58,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 171 states have (on average 1.2748538011695907) internal successors, (218), 170 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:06:58,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 218 transitions. [2022-12-13 22:06:58,795 INFO L240 hiAutomatonCegarLoop]: Abstraction has 171 states and 218 transitions. [2022-12-13 22:06:58,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 22:06:58,796 INFO L428 stractBuchiCegarLoop]: Abstraction has 171 states and 218 transitions. [2022-12-13 22:06:58,796 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-12-13 22:06:58,796 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 171 states and 218 transitions. [2022-12-13 22:06:58,797 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 120 [2022-12-13 22:06:58,798 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 22:06:58,798 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 22:06:58,798 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:06:58,798 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:06:58,799 INFO L748 eck$LassoCheckResult]: Stem: 594#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 595#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret29#1, main_~retValue_acc~8#1, main_~tmp~5#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 588#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 589#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 654#valid_product_returnLabel#1 main_#t~ret29#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret29#1;havoc main_#t~ret29#1; 619#L548 assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 620#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_#t~nondet20#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 624#L281-2 [2022-12-13 22:06:58,799 INFO L750 eck$LassoCheckResult]: Loop: 624#L281-2 assume !false; 554#L282 assume test_~splverifierCounter~0#1 < 4; 555#L283 test_~tmp~3#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; 645#L291 assume !(0 != test_~tmp~3#1); 643#L291-2 test_~tmp___0~1#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; 644#L301 assume !(0 != test_~tmp___0~1#1); 590#L301-2 test_~tmp___2~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 591#L311 assume 0 != test_~tmp___2~0#1; 562#L317-2 assume { :begin_inline_timeShift } true; 579#L105 assume !(0 != ~pumpRunning~0); 580#L105-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~0#1;havoc processEnvironment_~tmp~0#1; 603#L137 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret16#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~4#1;havoc isHighWaterLevel_~tmp~2#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~7#1;havoc isHighWaterSensorDry_~retValue_acc~7#1; 559#L455 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~7#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~7#1; 560#isHighWaterSensorDry_returnLabel#1 isHighWaterLevel_#t~ret16#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~2#1 := isHighWaterLevel_#t~ret16#1;havoc isHighWaterLevel_#t~ret16#1; 578#L257 assume 0 != isHighWaterLevel_~tmp~2#1;isHighWaterLevel_~tmp___0~0#1 := 0; 604#L257-2 isHighWaterLevel_~retValue_acc~4#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1; 605#isHighWaterLevel_returnLabel#1 processEnvironment_#t~ret5#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~0#1 := processEnvironment_#t~ret5#1;havoc processEnvironment_#t~ret5#1; 608#L141 assume !(0 != processEnvironment_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 574#processEnvironment__wrappee__base_returnLabel#1 assume { :end_inline_processEnvironment__wrappee__base } true; 575#L137-1 assume { :end_inline_processEnvironment } true; 718#L112-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret21#1, __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_#t~ret23#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~4#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;isMethaneLevelCritical_~retValue_acc~5#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~5#1; 632#isMethaneLevelCritical_returnLabel#2 __utac_acc__Specification3_spec__1_#t~ret21#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4#1 := __utac_acc__Specification3_spec__1_#t~ret21#1;havoc __utac_acc__Specification3_spec__1_#t~ret21#1; 633#L347 assume 0 != __utac_acc__Specification3_spec__1_~tmp~4#1; 613#L353-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 623#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 624#L281-2 [2022-12-13 22:06:58,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:06:58,800 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-12-13 22:06:58,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:06:58,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313482514] [2022-12-13 22:06:58,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:06:58,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:06:58,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:06:58,808 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 22:06:58,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:06:58,816 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 22:06:58,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:06:58,816 INFO L85 PathProgramCache]: Analyzing trace with hash 105517567, now seen corresponding path program 1 times [2022-12-13 22:06:58,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:06:58,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319503501] [2022-12-13 22:06:58,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:06:58,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:06:58,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:06:58,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:06:58,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:06:58,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319503501] [2022-12-13 22:06:58,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319503501] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:06:58,851 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:06:58,852 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 22:06:58,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852920332] [2022-12-13 22:06:58,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:06:58,852 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-12-13 22:06:58,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:06:58,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 22:06:58,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 22:06:58,853 INFO L87 Difference]: Start difference. First operand 171 states and 218 transitions. cyclomatic complexity: 49 Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:06:58,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:06:58,904 INFO L93 Difference]: Finished difference Result 487 states and 616 transitions. [2022-12-13 22:06:58,904 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 487 states and 616 transitions. [2022-12-13 22:06:58,908 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 352 [2022-12-13 22:06:58,911 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 487 states to 487 states and 616 transitions. [2022-12-13 22:06:58,911 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 487 [2022-12-13 22:06:58,912 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 487 [2022-12-13 22:06:58,912 INFO L73 IsDeterministic]: Start isDeterministic. Operand 487 states and 616 transitions. [2022-12-13 22:06:58,914 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 22:06:58,914 INFO L218 hiAutomatonCegarLoop]: Abstraction has 487 states and 616 transitions. [2022-12-13 22:06:58,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states and 616 transitions. [2022-12-13 22:06:58,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 177. [2022-12-13 22:06:58,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 177 states have (on average 1.265536723163842) internal successors, (224), 176 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:06:58,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 224 transitions. [2022-12-13 22:06:58,925 INFO L240 hiAutomatonCegarLoop]: Abstraction has 177 states and 224 transitions. [2022-12-13 22:06:58,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 22:06:58,927 INFO L428 stractBuchiCegarLoop]: Abstraction has 177 states and 224 transitions. [2022-12-13 22:06:58,927 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-12-13 22:06:58,927 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 177 states and 224 transitions. [2022-12-13 22:06:58,928 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 124 [2022-12-13 22:06:58,928 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 22:06:58,928 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 22:06:58,929 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:06:58,929 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:06:58,929 INFO L748 eck$LassoCheckResult]: Stem: 1265#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 1266#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret29#1, main_~retValue_acc~8#1, main_~tmp~5#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 1259#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1260#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 1324#valid_product_returnLabel#1 main_#t~ret29#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret29#1;havoc main_#t~ret29#1; 1290#L548 assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 1291#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_#t~nondet20#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1295#L281-2 [2022-12-13 22:06:58,929 INFO L750 eck$LassoCheckResult]: Loop: 1295#L281-2 assume !false; 1222#L282 assume test_~splverifierCounter~0#1 < 4; 1223#L283 test_~tmp~3#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; 1315#L291 assume !(0 != test_~tmp~3#1); 1313#L291-2 test_~tmp___0~1#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; 1314#L301 assume !(0 != test_~tmp___0~1#1); 1261#L301-2 test_~tmp___2~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 1262#L311 assume 0 != test_~tmp___2~0#1; 1231#L317-2 assume { :begin_inline_timeShift } true; 1248#L105 assume !(0 != ~pumpRunning~0); 1249#L105-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~0#1;havoc processEnvironment_~tmp~0#1; 1273#L137 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret16#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~4#1;havoc isHighWaterLevel_~tmp~2#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~7#1;havoc isHighWaterSensorDry_~retValue_acc~7#1; 1227#L455 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~7#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~7#1; 1228#isHighWaterSensorDry_returnLabel#1 isHighWaterLevel_#t~ret16#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~2#1 := isHighWaterLevel_#t~ret16#1;havoc isHighWaterLevel_#t~ret16#1; 1340#L257 assume !(0 != isHighWaterLevel_~tmp~2#1);isHighWaterLevel_~tmp___0~0#1 := 1; 1274#L257-2 isHighWaterLevel_~retValue_acc~4#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1; 1275#isHighWaterLevel_returnLabel#1 processEnvironment_#t~ret5#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~0#1 := processEnvironment_#t~ret5#1;havoc processEnvironment_#t~ret5#1; 1278#L141 assume !(0 != processEnvironment_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1243#processEnvironment__wrappee__base_returnLabel#1 assume { :end_inline_processEnvironment__wrappee__base } true; 1244#L137-1 assume { :end_inline_processEnvironment } true; 1301#L112-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret21#1, __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_#t~ret23#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~4#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;isMethaneLevelCritical_~retValue_acc~5#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~5#1; 1302#isMethaneLevelCritical_returnLabel#2 __utac_acc__Specification3_spec__1_#t~ret21#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4#1 := __utac_acc__Specification3_spec__1_#t~ret21#1;havoc __utac_acc__Specification3_spec__1_#t~ret21#1; 1303#L347 assume 0 != __utac_acc__Specification3_spec__1_~tmp~4#1; 1285#L353-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1294#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1295#L281-2 [2022-12-13 22:06:58,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:06:58,930 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2022-12-13 22:06:58,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:06:58,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721192481] [2022-12-13 22:06:58,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:06:58,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:06:58,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:06:58,939 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 22:06:58,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:06:58,946 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 22:06:58,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:06:58,947 INFO L85 PathProgramCache]: Analyzing trace with hash 806582145, now seen corresponding path program 1 times [2022-12-13 22:06:58,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:06:58,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022299499] [2022-12-13 22:06:58,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:06:58,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:06:58,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:06:58,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:06:58,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:06:58,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022299499] [2022-12-13 22:06:58,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022299499] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:06:58,994 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:06:58,994 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 22:06:58,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118878683] [2022-12-13 22:06:58,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:06:58,995 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-12-13 22:06:58,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:06:58,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 22:06:58,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 22:06:58,996 INFO L87 Difference]: Start difference. First operand 177 states and 224 transitions. cyclomatic complexity: 49 Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:06:59,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:06:59,055 INFO L93 Difference]: Finished difference Result 393 states and 497 transitions. [2022-12-13 22:06:59,055 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 393 states and 497 transitions. [2022-12-13 22:06:59,058 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 284 [2022-12-13 22:06:59,060 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 393 states to 393 states and 497 transitions. [2022-12-13 22:06:59,060 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 393 [2022-12-13 22:06:59,060 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 393 [2022-12-13 22:06:59,061 INFO L73 IsDeterministic]: Start isDeterministic. Operand 393 states and 497 transitions. [2022-12-13 22:06:59,061 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 22:06:59,061 INFO L218 hiAutomatonCegarLoop]: Abstraction has 393 states and 497 transitions. [2022-12-13 22:06:59,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states and 497 transitions. [2022-12-13 22:06:59,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 186. [2022-12-13 22:06:59,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 186 states have (on average 1.2526881720430108) internal successors, (233), 185 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:06:59,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 233 transitions. [2022-12-13 22:06:59,070 INFO L240 hiAutomatonCegarLoop]: Abstraction has 186 states and 233 transitions. [2022-12-13 22:06:59,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 22:06:59,071 INFO L428 stractBuchiCegarLoop]: Abstraction has 186 states and 233 transitions. [2022-12-13 22:06:59,071 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-12-13 22:06:59,071 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 186 states and 233 transitions. [2022-12-13 22:06:59,073 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 130 [2022-12-13 22:06:59,073 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 22:06:59,073 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 22:06:59,073 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:06:59,073 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:06:59,074 INFO L748 eck$LassoCheckResult]: Stem: 1849#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 1850#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret29#1, main_~retValue_acc~8#1, main_~tmp~5#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 1843#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1844#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 1915#valid_product_returnLabel#1 main_#t~ret29#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret29#1;havoc main_#t~ret29#1; 1875#L548 assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 1876#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_#t~nondet20#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1889#L281-2 [2022-12-13 22:06:59,074 INFO L750 eck$LassoCheckResult]: Loop: 1889#L281-2 assume !false; 1806#L282 assume test_~splverifierCounter~0#1 < 4; 1807#L283 test_~tmp~3#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; 1903#L291 assume !(0 != test_~tmp~3#1); 1901#L291-2 test_~tmp___0~1#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; 1902#L301 assume !(0 != test_~tmp___0~1#1); 1845#L301-2 test_~tmp___2~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 1846#L311 assume 0 != test_~tmp___2~0#1; 1815#L317-2 assume { :begin_inline_timeShift } true; 1833#L105 assume !(0 != ~pumpRunning~0); 1834#L105-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~0#1;havoc processEnvironment_~tmp~0#1; 1858#L137 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret16#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~4#1;havoc isHighWaterLevel_~tmp~2#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~7#1;havoc isHighWaterSensorDry_~retValue_acc~7#1; 1811#L455 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~7#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~7#1; 1813#isHighWaterSensorDry_returnLabel#1 isHighWaterLevel_#t~ret16#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~2#1 := isHighWaterLevel_#t~ret16#1;havoc isHighWaterLevel_#t~ret16#1; 1939#L257 assume 0 != isHighWaterLevel_~tmp~2#1;isHighWaterLevel_~tmp___0~0#1 := 0; 1940#L257-2 isHighWaterLevel_~retValue_acc~4#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1; 1923#isHighWaterLevel_returnLabel#1 processEnvironment_#t~ret5#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~0#1 := processEnvironment_#t~ret5#1;havoc processEnvironment_#t~ret5#1; 1924#L141 assume !(0 != processEnvironment_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1827#processEnvironment__wrappee__base_returnLabel#1 assume { :end_inline_processEnvironment__wrappee__base } true; 1828#L137-1 assume { :end_inline_processEnvironment } true; 1956#L112-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret21#1, __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_#t~ret23#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~4#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;isMethaneLevelCritical_~retValue_acc~5#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~5#1; 1955#isMethaneLevelCritical_returnLabel#2 __utac_acc__Specification3_spec__1_#t~ret21#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4#1 := __utac_acc__Specification3_spec__1_#t~ret21#1;havoc __utac_acc__Specification3_spec__1_#t~ret21#1; 1950#L347 assume 0 != __utac_acc__Specification3_spec__1_~tmp~4#1; 1949#L353-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1948#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1889#L281-2 [2022-12-13 22:06:59,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:06:59,074 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 5 times [2022-12-13 22:06:59,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:06:59,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055715743] [2022-12-13 22:06:59,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:06:59,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:06:59,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:06:59,082 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 22:06:59,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:06:59,088 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 22:06:59,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:06:59,089 INFO L85 PathProgramCache]: Analyzing trace with hash 692323581, now seen corresponding path program 1 times [2022-12-13 22:06:59,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:06:59,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784929803] [2022-12-13 22:06:59,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:06:59,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:06:59,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:06:59,095 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 22:06:59,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:06:59,102 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 22:06:59,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:06:59,103 INFO L85 PathProgramCache]: Analyzing trace with hash -558681159, now seen corresponding path program 1 times [2022-12-13 22:06:59,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:06:59,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497919387] [2022-12-13 22:06:59,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:06:59,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:06:59,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:06:59,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:06:59,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:06:59,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497919387] [2022-12-13 22:06:59,162 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497919387] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:06:59,162 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:06:59,162 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 22:06:59,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421098277] [2022-12-13 22:06:59,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:06:59,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:06:59,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 22:06:59,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 22:06:59,325 INFO L87 Difference]: Start difference. First operand 186 states and 233 transitions. cyclomatic complexity: 49 Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:06:59,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:06:59,420 INFO L93 Difference]: Finished difference Result 658 states and 818 transitions. [2022-12-13 22:06:59,420 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 658 states and 818 transitions. [2022-12-13 22:06:59,424 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 479 [2022-12-13 22:06:59,426 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 658 states to 658 states and 818 transitions. [2022-12-13 22:06:59,426 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 658 [2022-12-13 22:06:59,426 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 658 [2022-12-13 22:06:59,426 INFO L73 IsDeterministic]: Start isDeterministic. Operand 658 states and 818 transitions. [2022-12-13 22:06:59,427 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 22:06:59,427 INFO L218 hiAutomatonCegarLoop]: Abstraction has 658 states and 818 transitions. [2022-12-13 22:06:59,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states and 818 transitions. [2022-12-13 22:06:59,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 365. [2022-12-13 22:06:59,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 365 states have (on average 1.2356164383561643) internal successors, (451), 364 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:06:59,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 451 transitions. [2022-12-13 22:06:59,439 INFO L240 hiAutomatonCegarLoop]: Abstraction has 365 states and 451 transitions. [2022-12-13 22:06:59,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 22:06:59,440 INFO L428 stractBuchiCegarLoop]: Abstraction has 365 states and 451 transitions. [2022-12-13 22:06:59,440 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-12-13 22:06:59,440 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 365 states and 451 transitions. [2022-12-13 22:06:59,443 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 260 [2022-12-13 22:06:59,443 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 22:06:59,443 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 22:06:59,443 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:06:59,444 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:06:59,444 INFO L748 eck$LassoCheckResult]: Stem: 2713#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 2714#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret29#1, main_~retValue_acc~8#1, main_~tmp~5#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 2707#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2708#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 2782#valid_product_returnLabel#1 main_#t~ret29#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret29#1;havoc main_#t~ret29#1; 2739#L548 assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 2740#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_#t~nondet20#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2744#L281-2 [2022-12-13 22:06:59,444 INFO L750 eck$LassoCheckResult]: Loop: 2744#L281-2 assume !false; 2764#L282 assume test_~splverifierCounter~0#1 < 4; 2997#L283 test_~tmp~3#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; 2769#L291 assume !(0 != test_~tmp~3#1); 2767#L291-2 test_~tmp___0~1#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; 2768#L301 assume !(0 != test_~tmp___0~1#1); 3023#L301-2 test_~tmp___2~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 3022#L311 assume 0 != test_~tmp___2~0#1; 3018#L317-2 assume { :begin_inline_timeShift } true; 2694#L105 assume !(0 != ~pumpRunning~0); 2695#L105-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~0#1;havoc processEnvironment_~tmp~0#1; 2721#L137 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret16#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~4#1;havoc isHighWaterLevel_~tmp~2#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~7#1;havoc isHighWaterSensorDry_~retValue_acc~7#1; 2673#L455 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~7#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~7#1; 2675#isHighWaterSensorDry_returnLabel#1 isHighWaterLevel_#t~ret16#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~2#1 := isHighWaterLevel_#t~ret16#1;havoc isHighWaterLevel_#t~ret16#1; 2693#L257 assume 0 != isHighWaterLevel_~tmp~2#1;isHighWaterLevel_~tmp___0~0#1 := 0; 3025#L257-2 isHighWaterLevel_~retValue_acc~4#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1; 3020#isHighWaterLevel_returnLabel#1 processEnvironment_#t~ret5#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~0#1 := processEnvironment_#t~ret5#1;havoc processEnvironment_#t~ret5#1; 3017#L141 assume !(0 != processEnvironment_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2689#processEnvironment__wrappee__base_returnLabel#1 assume { :end_inline_processEnvironment__wrappee__base } true; 2690#L137-1 assume { :end_inline_processEnvironment } true; 2752#L112-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret21#1, __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_#t~ret23#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~4#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;isMethaneLevelCritical_~retValue_acc~5#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~5#1; 2753#isMethaneLevelCritical_returnLabel#2 __utac_acc__Specification3_spec__1_#t~ret21#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4#1 := __utac_acc__Specification3_spec__1_#t~ret21#1;havoc __utac_acc__Specification3_spec__1_#t~ret21#1; 2798#L347 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~4#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~6#1;havoc getWaterLevel_~retValue_acc~6#1;getWaterLevel_~retValue_acc~6#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~6#1; 2741#getWaterLevel_returnLabel#1 __utac_acc__Specification3_spec__1_#t~ret22#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~2#1 := __utac_acc__Specification3_spec__1_#t~ret22#1;havoc __utac_acc__Specification3_spec__1_#t~ret22#1; 2742#L353 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~2#1); 3005#L353-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 2743#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 2744#L281-2 [2022-12-13 22:06:59,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:06:59,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 6 times [2022-12-13 22:06:59,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:06:59,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354646264] [2022-12-13 22:06:59,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:06:59,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:06:59,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:06:59,451 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 22:06:59,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:06:59,458 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 22:06:59,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:06:59,459 INFO L85 PathProgramCache]: Analyzing trace with hash -395717680, now seen corresponding path program 1 times [2022-12-13 22:06:59,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:06:59,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034726039] [2022-12-13 22:06:59,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:06:59,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:06:59,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:06:59,465 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 22:06:59,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:06:59,473 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 22:06:59,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:06:59,473 INFO L85 PathProgramCache]: Analyzing trace with hash -20429940, now seen corresponding path program 1 times [2022-12-13 22:06:59,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:06:59,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651790494] [2022-12-13 22:06:59,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:06:59,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:06:59,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:06:59,484 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 22:06:59,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:06:59,497 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 22:07:00,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:07:00,303 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 22:07:00,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:07:00,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.12 10:07:00 BoogieIcfgContainer [2022-12-13 22:07:00,347 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-12-13 22:07:00,347 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 22:07:00,347 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 22:07:00,348 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 22:07:00,348 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:06:58" (3/4) ... [2022-12-13 22:07:00,350 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-12-13 22:07:00,393 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1d9dd0-3f0b-4aa7-91b6-e3016e210ecc/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 22:07:00,393 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 22:07:00,394 INFO L158 Benchmark]: Toolchain (without parser) took 3003.87ms. Allocated memory was 107.0MB in the beginning and 159.4MB in the end (delta: 52.4MB). Free memory was 60.1MB in the beginning and 81.0MB in the end (delta: -20.9MB). Peak memory consumption was 31.8MB. Max. memory is 16.1GB. [2022-12-13 22:07:00,394 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 107.0MB. Free memory was 78.8MB in the beginning and 78.7MB in the end (delta: 92.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 22:07:00,395 INFO L158 Benchmark]: CACSL2BoogieTranslator took 273.38ms. Allocated memory is still 107.0MB. Free memory was 60.1MB in the beginning and 41.8MB in the end (delta: 18.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-13 22:07:00,395 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.29ms. Allocated memory was 107.0MB in the beginning and 159.4MB in the end (delta: 52.4MB). Free memory was 41.8MB in the beginning and 132.0MB in the end (delta: -90.2MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. [2022-12-13 22:07:00,395 INFO L158 Benchmark]: Boogie Preprocessor took 20.08ms. Allocated memory is still 159.4MB. Free memory was 132.0MB in the beginning and 129.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 22:07:00,396 INFO L158 Benchmark]: RCFGBuilder took 362.41ms. Allocated memory is still 159.4MB. Free memory was 129.9MB in the beginning and 111.0MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-13 22:07:00,396 INFO L158 Benchmark]: BuchiAutomizer took 2243.81ms. Allocated memory is still 159.4MB. Free memory was 110.2MB in the beginning and 84.2MB in the end (delta: 26.0MB). Peak memory consumption was 26.6MB. Max. memory is 16.1GB. [2022-12-13 22:07:00,396 INFO L158 Benchmark]: Witness Printer took 46.24ms. Allocated memory is still 159.4MB. Free memory was 84.2MB in the beginning and 81.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 22:07:00,398 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 107.0MB. Free memory was 78.8MB in the beginning and 78.7MB in the end (delta: 92.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 273.38ms. Allocated memory is still 107.0MB. Free memory was 60.1MB in the beginning and 41.8MB in the end (delta: 18.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.29ms. Allocated memory was 107.0MB in the beginning and 159.4MB in the end (delta: 52.4MB). Free memory was 41.8MB in the beginning and 132.0MB in the end (delta: -90.2MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.08ms. Allocated memory is still 159.4MB. Free memory was 132.0MB in the beginning and 129.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 362.41ms. Allocated memory is still 159.4MB. Free memory was 129.9MB in the beginning and 111.0MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * BuchiAutomizer took 2243.81ms. Allocated memory is still 159.4MB. Free memory was 110.2MB in the beginning and 84.2MB in the end (delta: 26.0MB). Peak memory consumption was 26.6MB. Max. memory is 16.1GB. * Witness Printer took 46.24ms. Allocated memory is still 159.4MB. Free memory was 84.2MB in the beginning and 81.0MB 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 5 terminating modules (5 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.5 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 365 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.1s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 1.6s. Construction of modules took 0.1s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 5. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 810 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1994 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1994 mSDsluCounter, 2486 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1532 mSDsCounter, 46 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 193 IncrementalHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 46 mSolverCounterUnsat, 954 mSDtfsCounter, 193 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 281]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L97] int pumpRunning = 0; [L98] int systemActive = 1; [L372] int waterLevel = 1; [L373] int methaneLevelCritical = 0; [L466] int cleanupTimeShifts = 4; [L731] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L539] int retValue_acc ; [L540] int tmp ; [L544] FCALL select_helpers() [L545] FCALL select_features() [L546] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L546] RET, EXPR valid_product() [L546] tmp = valid_product() [L548] COND TRUE \read(tmp) [L550] FCALL setup() [L551] CALL runTest() [L533] CALL test() [L272] int splverifierCounter ; [L273] int tmp ; [L274] int tmp___0 ; [L275] int tmp___1 ; [L276] int tmp___2 ; [L279] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L281] COND TRUE 1 [L283] COND TRUE splverifierCounter < 4 [L289] tmp = __VERIFIER_nondet_int() [L291] COND FALSE !(\read(tmp)) [L299] tmp___0 = __VERIFIER_nondet_int() [L301] COND FALSE !(\read(tmp___0)) [L309] tmp___2 = __VERIFIER_nondet_int() [L311] COND TRUE \read(tmp___2) [L324] CALL timeShift() [L105] COND FALSE !(\read(pumpRunning)) [L112] COND TRUE \read(systemActive) [L114] CALL processEnvironment() [L134] int tmp ; [L137] COND TRUE ! pumpRunning [L139] CALL, EXPR isHighWaterLevel() [L249] int retValue_acc ; [L250] int tmp ; [L251] int tmp___0 ; [L255] CALL, EXPR isHighWaterSensorDry() [L452] int retValue_acc ; [L455] COND TRUE waterLevel < 2 [L456] retValue_acc = 1 [L457] return (retValue_acc); [L255] RET, EXPR isHighWaterSensorDry() [L255] tmp = isHighWaterSensorDry() [L257] COND TRUE \read(tmp) [L258] tmp___0 = 0 [L262] retValue_acc = tmp___0 [L263] return (retValue_acc); [L139] RET, EXPR isHighWaterLevel() [L139] tmp = isHighWaterLevel() [L141] COND FALSE !(\read(tmp)) [L147] FCALL processEnvironment__wrappee__base() [L114] RET processEnvironment() [L120] CALL __utac_acc__Specification3_spec__1() [L339] int tmp ; [L340] int tmp___0 ; [L341] int tmp___1 ; [L345] CALL, EXPR isMethaneLevelCritical() [L411] int retValue_acc ; [L414] retValue_acc = methaneLevelCritical [L415] return (retValue_acc); [L345] RET, EXPR isMethaneLevelCritical() [L345] tmp = isMethaneLevelCritical() [L347] COND FALSE !(\read(tmp)) [L351] CALL, EXPR getWaterLevel() [L443] int retValue_acc ; [L446] retValue_acc = waterLevel [L447] return (retValue_acc); [L351] RET, EXPR getWaterLevel() [L351] tmp___0 = getWaterLevel() [L353] COND FALSE !(tmp___0 == 2) [L120] RET __utac_acc__Specification3_spec__1() [L324] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 281]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L97] int pumpRunning = 0; [L98] int systemActive = 1; [L372] int waterLevel = 1; [L373] int methaneLevelCritical = 0; [L466] int cleanupTimeShifts = 4; [L731] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L539] int retValue_acc ; [L540] int tmp ; [L544] FCALL select_helpers() [L545] FCALL select_features() [L546] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L546] RET, EXPR valid_product() [L546] tmp = valid_product() [L548] COND TRUE \read(tmp) [L550] FCALL setup() [L551] CALL runTest() [L533] CALL test() [L272] int splverifierCounter ; [L273] int tmp ; [L274] int tmp___0 ; [L275] int tmp___1 ; [L276] int tmp___2 ; [L279] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L281] COND TRUE 1 [L283] COND TRUE splverifierCounter < 4 [L289] tmp = __VERIFIER_nondet_int() [L291] COND FALSE !(\read(tmp)) [L299] tmp___0 = __VERIFIER_nondet_int() [L301] COND FALSE !(\read(tmp___0)) [L309] tmp___2 = __VERIFIER_nondet_int() [L311] COND TRUE \read(tmp___2) [L324] CALL timeShift() [L105] COND FALSE !(\read(pumpRunning)) [L112] COND TRUE \read(systemActive) [L114] CALL processEnvironment() [L134] int tmp ; [L137] COND TRUE ! pumpRunning [L139] CALL, EXPR isHighWaterLevel() [L249] int retValue_acc ; [L250] int tmp ; [L251] int tmp___0 ; [L255] CALL, EXPR isHighWaterSensorDry() [L452] int retValue_acc ; [L455] COND TRUE waterLevel < 2 [L456] retValue_acc = 1 [L457] return (retValue_acc); [L255] RET, EXPR isHighWaterSensorDry() [L255] tmp = isHighWaterSensorDry() [L257] COND TRUE \read(tmp) [L258] tmp___0 = 0 [L262] retValue_acc = tmp___0 [L263] return (retValue_acc); [L139] RET, EXPR isHighWaterLevel() [L139] tmp = isHighWaterLevel() [L141] COND FALSE !(\read(tmp)) [L147] FCALL processEnvironment__wrappee__base() [L114] RET processEnvironment() [L120] CALL __utac_acc__Specification3_spec__1() [L339] int tmp ; [L340] int tmp___0 ; [L341] int tmp___1 ; [L345] CALL, EXPR isMethaneLevelCritical() [L411] int retValue_acc ; [L414] retValue_acc = methaneLevelCritical [L415] return (retValue_acc); [L345] RET, EXPR isMethaneLevelCritical() [L345] tmp = isMethaneLevelCritical() [L347] COND FALSE !(\read(tmp)) [L351] CALL, EXPR getWaterLevel() [L443] int retValue_acc ; [L446] retValue_acc = waterLevel [L447] return (retValue_acc); [L351] RET, EXPR getWaterLevel() [L351] tmp___0 = getWaterLevel() [L353] COND FALSE !(tmp___0 == 2) [L120] RET __utac_acc__Specification3_spec__1() [L324] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-12-13 22:07:00,426 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1d9dd0-3f0b-4aa7-91b6-e3016e210ecc/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)