./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product34.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f846b23c-d6ff-4b89-b05d-049ad72cbf5b/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f846b23c-d6ff-4b89-b05d-049ad72cbf5b/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f846b23c-d6ff-4b89-b05d-049ad72cbf5b/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f846b23c-d6ff-4b89-b05d-049ad72cbf5b/bin/uautomizer-GMMbpWq8iD/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product34.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f846b23c-d6ff-4b89-b05d-049ad72cbf5b/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f846b23c-d6ff-4b89-b05d-049ad72cbf5b/bin/uautomizer-GMMbpWq8iD --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 86e7038cbd7079ed991c0d8924416f9d170b15a53536a052f3097e1f394171ef ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:03:43,364 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:03:43,366 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:03:43,412 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:03:43,413 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:03:43,414 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:03:43,416 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:03:43,419 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:03:43,421 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:03:43,422 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:03:43,424 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:03:43,425 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:03:43,426 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:03:43,427 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:03:43,429 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:03:43,431 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:03:43,432 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:03:43,433 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:03:43,436 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:03:43,439 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:03:43,441 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:03:43,447 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:03:43,448 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:03:43,449 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:03:43,453 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:03:43,454 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:03:43,454 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:03:43,455 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:03:43,466 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:03:43,468 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:03:43,468 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:03:43,469 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:03:43,470 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:03:43,471 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:03:43,472 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:03:43,473 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:03:43,474 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:03:43,474 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:03:43,474 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:03:43,476 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:03:43,476 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:03:43,482 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f846b23c-d6ff-4b89-b05d-049ad72cbf5b/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-28 23:03:43,530 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:03:43,530 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:03:43,531 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:03:43,531 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:03:43,541 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:03:43,541 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:03:43,542 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:03:43,542 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 23:03:43,542 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 23:03:43,542 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 23:03:43,542 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 23:03:43,543 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 23:03:43,543 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 23:03:43,543 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:03:43,543 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:03:43,543 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:03:43,544 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:03:43,544 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:03:43,544 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:03:43,544 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 23:03:43,544 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 23:03:43,545 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 23:03:43,545 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:03:43,545 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:03:43,545 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 23:03:43,545 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:03:43,545 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 23:03:43,547 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:03:43,547 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:03:43,547 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:03:43,547 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:03:43,548 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:03:43,549 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 23:03:43,549 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_f846b23c-d6ff-4b89-b05d-049ad72cbf5b/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f846b23c-d6ff-4b89-b05d-049ad72cbf5b/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 86e7038cbd7079ed991c0d8924416f9d170b15a53536a052f3097e1f394171ef [2021-10-28 23:03:43,821 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:03:43,851 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:03:43,854 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:03:43,855 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:03:43,856 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:03:43,857 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f846b23c-d6ff-4b89-b05d-049ad72cbf5b/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/product-lines/minepump_spec5_product34.cil.c [2021-10-28 23:03:43,952 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f846b23c-d6ff-4b89-b05d-049ad72cbf5b/bin/uautomizer-GMMbpWq8iD/data/c0a652c0b/e08a314bd4be4840838e96a0e1767b43/FLAG069e2f5ff [2021-10-28 23:03:44,468 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:03:44,469 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f846b23c-d6ff-4b89-b05d-049ad72cbf5b/sv-benchmarks/c/product-lines/minepump_spec5_product34.cil.c [2021-10-28 23:03:44,483 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f846b23c-d6ff-4b89-b05d-049ad72cbf5b/bin/uautomizer-GMMbpWq8iD/data/c0a652c0b/e08a314bd4be4840838e96a0e1767b43/FLAG069e2f5ff [2021-10-28 23:03:44,809 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f846b23c-d6ff-4b89-b05d-049ad72cbf5b/bin/uautomizer-GMMbpWq8iD/data/c0a652c0b/e08a314bd4be4840838e96a0e1767b43 [2021-10-28 23:03:44,811 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:03:44,812 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:03:44,823 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:03:44,823 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:03:44,827 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:03:44,828 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:03:44" (1/1) ... [2021-10-28 23:03:44,829 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c090393 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:03:44, skipping insertion in model container [2021-10-28 23:03:44,829 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:03:44" (1/1) ... [2021-10-28 23:03:44,837 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:03:44,899 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:03:45,092 WARN L228 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_f846b23c-d6ff-4b89-b05d-049ad72cbf5b/sv-benchmarks/c/product-lines/minepump_spec5_product34.cil.c[2141,2154] [2021-10-28 23:03:45,253 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:03:45,279 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:03:45,307 WARN L228 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_f846b23c-d6ff-4b89-b05d-049ad72cbf5b/sv-benchmarks/c/product-lines/minepump_spec5_product34.cil.c[2141,2154] [2021-10-28 23:03:45,391 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:03:45,416 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:03:45,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:03:45 WrapperNode [2021-10-28 23:03:45,418 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:03:45,420 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:03:45,420 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:03:45,420 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:03:45,429 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:03:45" (1/1) ... [2021-10-28 23:03:45,449 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:03:45" (1/1) ... [2021-10-28 23:03:45,493 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:03:45,494 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:03:45,494 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:03:45,494 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:03:45,504 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:03:45" (1/1) ... [2021-10-28 23:03:45,509 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:03:45" (1/1) ... [2021-10-28 23:03:45,514 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:03:45" (1/1) ... [2021-10-28 23:03:45,516 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:03:45" (1/1) ... [2021-10-28 23:03:45,538 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:03:45" (1/1) ... [2021-10-28 23:03:45,545 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:03:45" (1/1) ... [2021-10-28 23:03:45,548 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:03:45" (1/1) ... [2021-10-28 23:03:45,552 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:03:45,553 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:03:45,553 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:03:45,553 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:03:45,554 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:03:45" (1/1) ... [2021-10-28 23:03:45,563 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:03:45,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f846b23c-d6ff-4b89-b05d-049ad72cbf5b/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:03:45,600 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f846b23c-d6ff-4b89-b05d-049ad72cbf5b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:03:45,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f846b23c-d6ff-4b89-b05d-049ad72cbf5b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 23:03:45,640 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:03:45,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:03:45,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:03:45,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:03:46,526 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:03:46,526 INFO L299 CfgBuilder]: Removed 112 assume(true) statements. [2021-10-28 23:03:46,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:03:46 BoogieIcfgContainer [2021-10-28 23:03:46,528 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:03:46,530 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 23:03:46,530 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 23:03:46,535 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 23:03:46,536 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:03:46,536 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 11:03:44" (1/3) ... [2021-10-28 23:03:46,538 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@355a8206 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:03:46, skipping insertion in model container [2021-10-28 23:03:46,538 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:03:46,538 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:03:45" (2/3) ... [2021-10-28 23:03:46,539 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@355a8206 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:03:46, skipping insertion in model container [2021-10-28 23:03:46,539 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:03:46,539 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:03:46" (3/3) ... [2021-10-28 23:03:46,540 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product34.cil.c [2021-10-28 23:03:46,602 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 23:03:46,602 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 23:03:46,603 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 23:03:46,603 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 23:03:46,603 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 23:03:46,603 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 23:03:46,603 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 23:03:46,603 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 23:03:46,622 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 84 states, 83 states have (on average 1.5180722891566265) internal successors, (126), 83 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:03:46,646 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 53 [2021-10-28 23:03:46,647 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:03:46,647 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:03:46,655 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:03:46,655 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:03:46,655 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 23:03:46,656 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 84 states, 83 states have (on average 1.5180722891566265) internal successors, (126), 83 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:03:46,662 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 53 [2021-10-28 23:03:46,663 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:03:46,663 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:03:46,664 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:03:46,664 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:03:46,669 INFO L791 eck$LassoCheckResult]: Stem: 62#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(30);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(9);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(21);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(13);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string46.base, #t~string46.offset, 1);call write~init~int(77, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(101, #t~string46.base, 2 + #t~string46.offset, 1);call write~init~int(116, #t~string46.base, 3 + #t~string46.offset, 1);call write~init~int(104, #t~string46.base, 4 + #t~string46.offset, 1);call write~init~int(58, #t~string46.base, 5 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 6 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string48.base, #t~string48.offset, 1);call write~init~int(82, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(73, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(84, #t~string48.base, 3 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 4 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string50.base, #t~string50.offset, 1);call write~init~int(75, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 2 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string52.base, #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 1 + #t~string52.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(13);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(110, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 3 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string66.base, #t~string66.offset, 1);call write~init~int(80, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(117, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(109, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(112, #t~string66.base, 4 + #t~string66.offset, 1);call write~init~int(58, #t~string66.base, 5 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 6 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(110, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 3 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(32, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 47#L-1true havoc main_#res;havoc main_#t~ret79, main_~retValue_acc~11, main_~tmp~7;havoc main_~retValue_acc~11;havoc main_~tmp~7; 74#L75true havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 31#L83true main_#t~ret79 := valid_product_#res;main_~tmp~7 := main_#t~ret79;havoc main_#t~ret79; 7#L935true assume 0 != main_~tmp~7; 70#L911true ~switchedOnBeforeTS~0 := 0; 69#L809true havoc test_#t~nondet53, test_#t~nondet54, test_#t~nondet55, test_#t~nondet56, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 72#L830-1true [2021-10-28 23:03:46,670 INFO L793 eck$LassoCheckResult]: Loop: 72#L830-1true assume !false; 55#L578true assume test_~splverifierCounter~0 < 4; 19#L579true test_~tmp~3 := test_#t~nondet53;havoc test_#t~nondet53; 75#L587true assume !(0 != test_~tmp~3); 44#L587-1true test_~tmp___0~0 := test_#t~nondet54;havoc test_#t~nondet54; 53#L597true assume !(0 != test_~tmp___0~0); 23#L597-1true test_~tmp___2~0 := test_#t~nondet55;havoc test_#t~nondet55; 39#L607true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 21#L615-2true havoc __utac_acc__Specification5_spec__2_#t~ret76;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~9;havoc isPumpRunning_~retValue_acc~9;isPumpRunning_~retValue_acc~9 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~9; 73#L735true __utac_acc__Specification5_spec__2_#t~ret76 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret76;havoc __utac_acc__Specification5_spec__2_#t~ret76; 58#L819true assume !(0 != ~pumpRunning~0); 38#L650true assume !(0 != ~systemActive~0); 82#L657true havoc __utac_acc__Specification5_spec__3_#t~ret77, __utac_acc__Specification5_spec__3_#t~ret78, __utac_acc__Specification5_spec__3_~tmp~6, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~6;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~6;havoc getWaterLevel_~retValue_acc~6;getWaterLevel_~retValue_acc~6 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~6; 30#L545true __utac_acc__Specification5_spec__3_#t~ret77 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~6 := __utac_acc__Specification5_spec__3_#t~ret77;havoc __utac_acc__Specification5_spec__3_#t~ret77; 41#L830true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~6); 72#L830-1true [2021-10-28 23:03:46,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:03:46,676 INFO L85 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2021-10-28 23:03:46,685 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:03:46,686 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375374707] [2021-10-28 23:03:46,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:03:46,688 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:03:47,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:03:47,038 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:03:47,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:03:47,176 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:03:47,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:03:47,189 INFO L85 PathProgramCache]: Analyzing trace with hash 1011437965, now seen corresponding path program 1 times [2021-10-28 23:03:47,189 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:03:47,189 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364605792] [2021-10-28 23:03:47,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:03:47,190 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:03:47,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:03:47,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:03:47,279 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:03:47,280 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364605792] [2021-10-28 23:03:47,281 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364605792] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:03:47,281 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:03:47,281 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:03:47,282 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335778254] [2021-10-28 23:03:47,287 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 23:03:47,289 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:03:47,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:03:47,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:03:47,307 INFO L87 Difference]: Start difference. First operand has 84 states, 83 states have (on average 1.5180722891566265) internal successors, (126), 83 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:03:47,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:03:47,343 INFO L93 Difference]: Finished difference Result 84 states and 116 transitions. [2021-10-28 23:03:47,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:03:47,346 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 84 states and 116 transitions. [2021-10-28 23:03:47,349 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2021-10-28 23:03:47,355 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 84 states to 77 states and 108 transitions. [2021-10-28 23:03:47,356 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 77 [2021-10-28 23:03:47,357 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 77 [2021-10-28 23:03:47,357 INFO L73 IsDeterministic]: Start isDeterministic. Operand 77 states and 108 transitions. [2021-10-28 23:03:47,358 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:03:47,358 INFO L681 BuchiCegarLoop]: Abstraction has 77 states and 108 transitions. [2021-10-28 23:03:47,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states and 108 transitions. [2021-10-28 23:03:47,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2021-10-28 23:03:47,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 77 states have (on average 1.4025974025974026) internal successors, (108), 76 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:03:47,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 108 transitions. [2021-10-28 23:03:47,414 INFO L704 BuchiCegarLoop]: Abstraction has 77 states and 108 transitions. [2021-10-28 23:03:47,415 INFO L587 BuchiCegarLoop]: Abstraction has 77 states and 108 transitions. [2021-10-28 23:03:47,415 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 23:03:47,415 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 77 states and 108 transitions. [2021-10-28 23:03:47,417 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2021-10-28 23:03:47,418 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:03:47,418 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:03:47,418 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:03:47,419 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:03:47,419 INFO L791 eck$LassoCheckResult]: Stem: 247#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(30);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(9);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(21);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(13);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string46.base, #t~string46.offset, 1);call write~init~int(77, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(101, #t~string46.base, 2 + #t~string46.offset, 1);call write~init~int(116, #t~string46.base, 3 + #t~string46.offset, 1);call write~init~int(104, #t~string46.base, 4 + #t~string46.offset, 1);call write~init~int(58, #t~string46.base, 5 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 6 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string48.base, #t~string48.offset, 1);call write~init~int(82, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(73, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(84, #t~string48.base, 3 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 4 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string50.base, #t~string50.offset, 1);call write~init~int(75, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 2 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string52.base, #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 1 + #t~string52.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(13);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(110, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 3 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string66.base, #t~string66.offset, 1);call write~init~int(80, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(117, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(109, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(112, #t~string66.base, 4 + #t~string66.offset, 1);call write~init~int(58, #t~string66.base, 5 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 6 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(110, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 3 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(32, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 234#L-1 havoc main_#res;havoc main_#t~ret79, main_~retValue_acc~11, main_~tmp~7;havoc main_~retValue_acc~11;havoc main_~tmp~7; 235#L75 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 219#L83 main_#t~ret79 := valid_product_#res;main_~tmp~7 := main_#t~ret79;havoc main_#t~ret79; 189#L935 assume 0 != main_~tmp~7; 190#L911 ~switchedOnBeforeTS~0 := 0; 252#L809 havoc test_#t~nondet53, test_#t~nondet54, test_#t~nondet55, test_#t~nondet56, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 231#L830-1 [2021-10-28 23:03:47,419 INFO L793 eck$LassoCheckResult]: Loop: 231#L830-1 assume !false; 240#L578 assume test_~splverifierCounter~0 < 4; 202#L579 test_~tmp~3 := test_#t~nondet53;havoc test_#t~nondet53; 203#L587 assume !(0 != test_~tmp~3); 232#L587-1 test_~tmp___0~0 := test_#t~nondet54;havoc test_#t~nondet54; 233#L597 assume !(0 != test_~tmp___0~0); 211#L597-1 test_~tmp___2~0 := test_#t~nondet55;havoc test_#t~nondet55; 212#L607 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 196#L615-2 havoc __utac_acc__Specification5_spec__2_#t~ret76;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~9;havoc isPumpRunning_~retValue_acc~9;isPumpRunning_~retValue_acc~9 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~9; 206#L735 __utac_acc__Specification5_spec__2_#t~ret76 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret76;havoc __utac_acc__Specification5_spec__2_#t~ret76; 242#L819 assume !(0 != ~pumpRunning~0); 228#L650 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret57, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 184#L682 assume !(0 == ~pumpRunning~0); 185#L657 havoc __utac_acc__Specification5_spec__3_#t~ret77, __utac_acc__Specification5_spec__3_#t~ret78, __utac_acc__Specification5_spec__3_~tmp~6, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~6;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~6;havoc getWaterLevel_~retValue_acc~6;getWaterLevel_~retValue_acc~6 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~6; 217#L545 __utac_acc__Specification5_spec__3_#t~ret77 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~6 := __utac_acc__Specification5_spec__3_#t~ret77;havoc __utac_acc__Specification5_spec__3_#t~ret77; 218#L830 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~6); 231#L830-1 [2021-10-28 23:03:47,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:03:47,420 INFO L85 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2021-10-28 23:03:47,420 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:03:47,421 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768994304] [2021-10-28 23:03:47,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:03:47,421 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:03:47,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:03:47,473 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:03:47,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:03:47,591 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:03:47,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:03:47,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1258195139, now seen corresponding path program 1 times [2021-10-28 23:03:47,596 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:03:47,597 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331847371] [2021-10-28 23:03:47,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:03:47,597 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:03:47,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:03:47,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:03:47,625 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:03:47,626 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331847371] [2021-10-28 23:03:47,629 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331847371] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:03:47,629 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:03:47,630 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:03:47,630 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851229203] [2021-10-28 23:03:47,632 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 23:03:47,632 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:03:47,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:03:47,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:03:47,634 INFO L87 Difference]: Start difference. First operand 77 states and 108 transitions. cyclomatic complexity: 33 Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:03:47,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:03:47,751 INFO L93 Difference]: Finished difference Result 126 states and 170 transitions. [2021-10-28 23:03:47,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:03:47,754 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 126 states and 170 transitions. [2021-10-28 23:03:47,758 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 88 [2021-10-28 23:03:47,760 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 126 states to 126 states and 170 transitions. [2021-10-28 23:03:47,761 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 126 [2021-10-28 23:03:47,761 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 126 [2021-10-28 23:03:47,762 INFO L73 IsDeterministic]: Start isDeterministic. Operand 126 states and 170 transitions. [2021-10-28 23:03:47,763 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:03:47,763 INFO L681 BuchiCegarLoop]: Abstraction has 126 states and 170 transitions. [2021-10-28 23:03:47,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states and 170 transitions. [2021-10-28 23:03:47,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2021-10-28 23:03:47,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 126 states have (on average 1.3492063492063493) internal successors, (170), 125 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:03:47,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 170 transitions. [2021-10-28 23:03:47,783 INFO L704 BuchiCegarLoop]: Abstraction has 126 states and 170 transitions. [2021-10-28 23:03:47,783 INFO L587 BuchiCegarLoop]: Abstraction has 126 states and 170 transitions. [2021-10-28 23:03:47,783 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 23:03:47,783 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 126 states and 170 transitions. [2021-10-28 23:03:47,786 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 88 [2021-10-28 23:03:47,786 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:03:47,786 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:03:47,787 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:03:47,788 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:03:47,792 INFO L791 eck$LassoCheckResult]: Stem: 460#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(30);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(9);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(21);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(13);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string46.base, #t~string46.offset, 1);call write~init~int(77, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(101, #t~string46.base, 2 + #t~string46.offset, 1);call write~init~int(116, #t~string46.base, 3 + #t~string46.offset, 1);call write~init~int(104, #t~string46.base, 4 + #t~string46.offset, 1);call write~init~int(58, #t~string46.base, 5 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 6 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string48.base, #t~string48.offset, 1);call write~init~int(82, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(73, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(84, #t~string48.base, 3 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 4 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string50.base, #t~string50.offset, 1);call write~init~int(75, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 2 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string52.base, #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 1 + #t~string52.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(13);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(110, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 3 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string66.base, #t~string66.offset, 1);call write~init~int(80, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(117, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(109, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(112, #t~string66.base, 4 + #t~string66.offset, 1);call write~init~int(58, #t~string66.base, 5 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 6 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(110, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 3 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(32, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 444#L-1 havoc main_#res;havoc main_#t~ret79, main_~retValue_acc~11, main_~tmp~7;havoc main_~retValue_acc~11;havoc main_~tmp~7; 445#L75 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 427#L83 main_#t~ret79 := valid_product_#res;main_~tmp~7 := main_#t~ret79;havoc main_#t~ret79; 393#L935 assume 0 != main_~tmp~7; 394#L911 ~switchedOnBeforeTS~0 := 0; 465#L809 havoc test_#t~nondet53, test_#t~nondet54, test_#t~nondet55, test_#t~nondet56, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 441#L830-1 [2021-10-28 23:03:47,794 INFO L793 eck$LassoCheckResult]: Loop: 441#L830-1 assume !false; 451#L578 assume test_~splverifierCounter~0 < 4; 409#L579 test_~tmp~3 := test_#t~nondet53;havoc test_#t~nondet53; 410#L587 assume !(0 != test_~tmp~3); 442#L587-1 test_~tmp___0~0 := test_#t~nondet54;havoc test_#t~nondet54; 443#L597 assume !(0 != test_~tmp___0~0); 415#L597-1 test_~tmp___2~0 := test_#t~nondet55;havoc test_#t~nondet55; 416#L607 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 404#L615-2 havoc __utac_acc__Specification5_spec__2_#t~ret76;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~9;havoc isPumpRunning_~retValue_acc~9;isPumpRunning_~retValue_acc~9 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~9; 413#L735 __utac_acc__Specification5_spec__2_#t~ret76 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret76;havoc __utac_acc__Specification5_spec__2_#t~ret76; 455#L819 assume !(0 != ~pumpRunning~0); 437#L650 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret57, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 395#L682 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret75, isHighWaterLevel_~retValue_acc~10, isHighWaterLevel_~tmp~5, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~10;havoc isHighWaterLevel_~tmp~5;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~7;havoc isHighWaterSensorDry_~retValue_acc~7; 396#L553 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~7 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~7; 408#L558 isHighWaterLevel_#t~ret75 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~5 := isHighWaterLevel_#t~ret75;havoc isHighWaterLevel_#t~ret75; 458#L784 assume 0 != isHighWaterLevel_~tmp~5;isHighWaterLevel_~tmp___0~1 := 0; 459#L784-2 isHighWaterLevel_~retValue_acc~10 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~10; 391#L790 processEnvironment_#t~ret57 := isHighWaterLevel_#res;processEnvironment_~tmp~4 := processEnvironment_#t~ret57;havoc processEnvironment_#t~ret57; 392#L686 assume !(0 != processEnvironment_~tmp~4); 467#L657 havoc __utac_acc__Specification5_spec__3_#t~ret77, __utac_acc__Specification5_spec__3_#t~ret78, __utac_acc__Specification5_spec__3_~tmp~6, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~6;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~6;havoc getWaterLevel_~retValue_acc~6;getWaterLevel_~retValue_acc~6 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~6; 425#L545 __utac_acc__Specification5_spec__3_#t~ret77 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~6 := __utac_acc__Specification5_spec__3_#t~ret77;havoc __utac_acc__Specification5_spec__3_#t~ret77; 426#L830 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~6); 441#L830-1 [2021-10-28 23:03:47,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:03:47,795 INFO L85 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2021-10-28 23:03:47,796 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:03:47,796 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653962348] [2021-10-28 23:03:47,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:03:47,797 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:03:47,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:03:47,840 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:03:47,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:03:47,910 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:03:47,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:03:47,915 INFO L85 PathProgramCache]: Analyzing trace with hash -1417181585, now seen corresponding path program 1 times [2021-10-28 23:03:47,916 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:03:47,916 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049196547] [2021-10-28 23:03:47,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:03:47,916 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:03:47,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:03:47,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:03:47,965 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:03:47,966 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049196547] [2021-10-28 23:03:47,966 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049196547] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:03:47,966 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:03:47,967 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 23:03:47,967 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674470340] [2021-10-28 23:03:47,967 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 23:03:47,967 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:03:47,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:03:47,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:03:47,969 INFO L87 Difference]: Start difference. First operand 126 states and 170 transitions. cyclomatic complexity: 46 Second operand has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:03:48,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:03:48,163 INFO L93 Difference]: Finished difference Result 327 states and 433 transitions. [2021-10-28 23:03:48,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 23:03:48,164 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 327 states and 433 transitions. [2021-10-28 23:03:48,170 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 217 [2021-10-28 23:03:48,174 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 327 states to 327 states and 433 transitions. [2021-10-28 23:03:48,175 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 327 [2021-10-28 23:03:48,176 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 327 [2021-10-28 23:03:48,176 INFO L73 IsDeterministic]: Start isDeterministic. Operand 327 states and 433 transitions. [2021-10-28 23:03:48,178 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:03:48,178 INFO L681 BuchiCegarLoop]: Abstraction has 327 states and 433 transitions. [2021-10-28 23:03:48,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states and 433 transitions. [2021-10-28 23:03:48,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 245. [2021-10-28 23:03:48,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 245 states have (on average 1.3142857142857143) internal successors, (322), 244 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:03:48,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 322 transitions. [2021-10-28 23:03:48,197 INFO L704 BuchiCegarLoop]: Abstraction has 245 states and 322 transitions. [2021-10-28 23:03:48,197 INFO L587 BuchiCegarLoop]: Abstraction has 245 states and 322 transitions. [2021-10-28 23:03:48,198 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-28 23:03:48,198 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 245 states and 322 transitions. [2021-10-28 23:03:48,200 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 176 [2021-10-28 23:03:48,200 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:03:48,200 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:03:48,201 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:03:48,201 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:03:48,202 INFO L791 eck$LassoCheckResult]: Stem: 933#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(30);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(9);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(21);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(13);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string46.base, #t~string46.offset, 1);call write~init~int(77, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(101, #t~string46.base, 2 + #t~string46.offset, 1);call write~init~int(116, #t~string46.base, 3 + #t~string46.offset, 1);call write~init~int(104, #t~string46.base, 4 + #t~string46.offset, 1);call write~init~int(58, #t~string46.base, 5 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 6 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string48.base, #t~string48.offset, 1);call write~init~int(82, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(73, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(84, #t~string48.base, 3 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 4 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string50.base, #t~string50.offset, 1);call write~init~int(75, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 2 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string52.base, #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 1 + #t~string52.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(13);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(110, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 3 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string66.base, #t~string66.offset, 1);call write~init~int(80, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(117, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(109, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(112, #t~string66.base, 4 + #t~string66.offset, 1);call write~init~int(58, #t~string66.base, 5 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 6 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(110, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 3 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(32, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 914#L-1 havoc main_#res;havoc main_#t~ret79, main_~retValue_acc~11, main_~tmp~7;havoc main_~retValue_acc~11;havoc main_~tmp~7; 915#L75 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 897#L83 main_#t~ret79 := valid_product_#res;main_~tmp~7 := main_#t~ret79;havoc main_#t~ret79; 862#L935 assume 0 != main_~tmp~7; 863#L911 ~switchedOnBeforeTS~0 := 0; 938#L809 havoc test_#t~nondet53, test_#t~nondet54, test_#t~nondet55, test_#t~nondet56, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 929#L830-1 [2021-10-28 23:03:48,202 INFO L793 eck$LassoCheckResult]: Loop: 929#L830-1 assume !false; 922#L578 assume test_~splverifierCounter~0 < 4; 923#L579 test_~tmp~3 := test_#t~nondet53;havoc test_#t~nondet53; 1087#L587 assume !(0 != test_~tmp~3); 1086#L587-1 test_~tmp___0~0 := test_#t~nondet54;havoc test_#t~nondet54; 1085#L597 assume !(0 != test_~tmp___0~0); 1083#L597-1 test_~tmp___2~0 := test_#t~nondet55;havoc test_#t~nondet55; 1082#L607 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1080#L615-2 havoc __utac_acc__Specification5_spec__2_#t~ret76;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~9;havoc isPumpRunning_~retValue_acc~9;isPumpRunning_~retValue_acc~9 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~9; 1079#L735 __utac_acc__Specification5_spec__2_#t~ret76 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret76;havoc __utac_acc__Specification5_spec__2_#t~ret76; 927#L819 assume !(0 != ~pumpRunning~0); 907#L650 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret57, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 864#L682 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret75, isHighWaterLevel_~retValue_acc~10, isHighWaterLevel_~tmp~5, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~10;havoc isHighWaterLevel_~tmp~5;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~7;havoc isHighWaterSensorDry_~retValue_acc~7; 865#L553 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~7 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~7; 877#L558 isHighWaterLevel_#t~ret75 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~5 := isHighWaterLevel_#t~ret75;havoc isHighWaterLevel_#t~ret75; 931#L784 assume 0 != isHighWaterLevel_~tmp~5;isHighWaterLevel_~tmp___0~1 := 0; 932#L784-2 isHighWaterLevel_~retValue_acc~10 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~10; 860#L790 processEnvironment_#t~ret57 := isHighWaterLevel_#res;processEnvironment_~tmp~4 := processEnvironment_#t~ret57;havoc processEnvironment_#t~ret57; 861#L686 assume !(0 != processEnvironment_~tmp~4); 942#L657 havoc __utac_acc__Specification5_spec__3_#t~ret77, __utac_acc__Specification5_spec__3_#t~ret78, __utac_acc__Specification5_spec__3_~tmp~6, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~6;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~6;havoc getWaterLevel_~retValue_acc~6;getWaterLevel_~retValue_acc~6 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~6; 895#L545 __utac_acc__Specification5_spec__3_#t~ret77 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~6 := __utac_acc__Specification5_spec__3_#t~ret77;havoc __utac_acc__Specification5_spec__3_#t~ret77; 896#L830 assume 2 != __utac_acc__Specification5_spec__3_~tmp~6;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~9;havoc isPumpRunning_~retValue_acc~9;isPumpRunning_~retValue_acc~9 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~9; 910#L735-1 __utac_acc__Specification5_spec__3_#t~ret78 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~2 := __utac_acc__Specification5_spec__3_#t~ret78;havoc __utac_acc__Specification5_spec__3_#t~ret78; 928#L834 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~2); 929#L830-1 [2021-10-28 23:03:48,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:03:48,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2021-10-28 23:03:48,203 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:03:48,203 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651137598] [2021-10-28 23:03:48,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:03:48,203 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:03:48,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:03:48,241 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:03:48,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:03:48,320 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:03:48,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:03:48,321 INFO L85 PathProgramCache]: Analyzing trace with hash -406884310, now seen corresponding path program 1 times [2021-10-28 23:03:48,321 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:03:48,321 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562533593] [2021-10-28 23:03:48,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:03:48,322 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:03:48,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:03:48,327 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:03:48,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:03:48,336 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:03:48,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:03:48,337 INFO L85 PathProgramCache]: Analyzing trace with hash -547477648, now seen corresponding path program 1 times [2021-10-28 23:03:48,337 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:03:48,337 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689981742] [2021-10-28 23:03:48,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:03:48,338 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:03:48,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:03:48,368 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:03:48,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:03:48,428 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:04:51,681 WARN L207 SmtUtils]: Spent 1.05 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2021-10-28 23:05:54,813 WARN L207 SmtUtils]: Spent 30.15 s on a formula simplification that was a NOOP. DAG size: 435 [2021-10-28 23:05:54,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 11:05:54 BoogieIcfgContainer [2021-10-28 23:05:54,949 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 23:05:54,950 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:05:54,950 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:05:54,951 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:05:54,963 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:03:46" (3/4) ... [2021-10-28 23:05:54,966 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-28 23:05:55,038 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f846b23c-d6ff-4b89-b05d-049ad72cbf5b/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-28 23:05:55,043 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:05:55,044 INFO L168 Benchmark]: Toolchain (without parser) took 130230.94 ms. Allocated memory was 98.6 MB in the beginning and 146.8 MB in the end (delta: 48.2 MB). Free memory was 59.5 MB in the beginning and 78.1 MB in the end (delta: -18.7 MB). Peak memory consumption was 28.8 MB. Max. memory is 16.1 GB. [2021-10-28 23:05:55,045 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 98.6 MB. Free memory is still 77.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:05:55,046 INFO L168 Benchmark]: CACSL2BoogieTranslator took 595.56 ms. Allocated memory is still 98.6 MB. Free memory was 59.2 MB in the beginning and 66.5 MB in the end (delta: -7.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:05:55,046 INFO L168 Benchmark]: Boogie Procedure Inliner took 73.49 ms. Allocated memory is still 98.6 MB. Free memory was 66.5 MB in the beginning and 63.5 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:05:55,047 INFO L168 Benchmark]: Boogie Preprocessor took 58.59 ms. Allocated memory is still 98.6 MB. Free memory was 63.5 MB in the beginning and 61.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:05:55,049 INFO L168 Benchmark]: RCFGBuilder took 975.64 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 61.2 MB in the beginning and 83.1 MB in the end (delta: -21.9 MB). Peak memory consumption was 34.8 MB. Max. memory is 16.1 GB. [2021-10-28 23:05:55,052 INFO L168 Benchmark]: BuchiAutomizer took 128419.90 ms. Allocated memory was 119.5 MB in the beginning and 146.8 MB in the end (delta: 27.3 MB). Free memory was 83.1 MB in the beginning and 80.2 MB in the end (delta: 2.9 MB). Peak memory consumption was 84.7 MB. Max. memory is 16.1 GB. [2021-10-28 23:05:55,053 INFO L168 Benchmark]: Witness Printer took 92.86 ms. Allocated memory is still 146.8 MB. Free memory was 80.2 MB in the beginning and 78.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:05:55,056 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 98.6 MB. Free memory is still 77.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 595.56 ms. Allocated memory is still 98.6 MB. Free memory was 59.2 MB in the beginning and 66.5 MB in the end (delta: -7.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 73.49 ms. Allocated memory is still 98.6 MB. Free memory was 66.5 MB in the beginning and 63.5 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 58.59 ms. Allocated memory is still 98.6 MB. Free memory was 63.5 MB in the beginning and 61.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 975.64 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 61.2 MB in the beginning and 83.1 MB in the end (delta: -21.9 MB). Peak memory consumption was 34.8 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 128419.90 ms. Allocated memory was 119.5 MB in the beginning and 146.8 MB in the end (delta: 27.3 MB). Free memory was 83.1 MB in the beginning and 80.2 MB in the end (delta: 2.9 MB). Peak memory consumption was 84.7 MB. Max. memory is 16.1 GB. * Witness Printer took 92.86 ms. Allocated memory is still 146.8 MB. Free memory was 80.2 MB in the beginning and 78.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 245 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 128.3s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 127.7s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 82 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 245 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 381 SDtfs, 525 SDslu, 366 SDs, 0 SdLazy, 98 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 577]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=32749} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=32749, NULL=32765, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@45782878=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7a6d1c97=0, NULL=32756, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5cda7f9=0, tmp=0, NULL=0, NULL=32763, tmp___1=0, NULL=32767, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@21e8cfd3=0, NULL=0, NULL=32750, NULL=32761, cleanupTimeShifts=4, NULL=0, waterLevel=1, NULL=0, NULL=0, NULL=32764, tmp___0=0, NULL=32758, \result=1, head=0, pumpRunning=0, retValue_acc=1, NULL=32755, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@203c5941=0, NULL=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@57846218=0, \result=1, NULL=0, retValue_acc=0, NULL=0, retValue_acc=1, tmp=1, NULL=32772, NULL=32776, head=0, tmp=0, NULL=0, NULL=0, NULL=32774, NULL=0, NULL=0, NULL=0, NULL=32759, NULL=0, NULL=0, NULL=0, NULL=32766, NULL=32754, NULL=32751, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3e61c9c0=0, tmp=1, tmp___0=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@76314f33=0, NULL=0, NULL=32770, switchedOnBeforeTS=0, NULL=32773, NULL=32752, \result=0, NULL=0, NULL=0, systemActive=1, \result=1, \result=0, NULL=0, NULL=0, retValue_acc=0, NULL=32769, tmp___0=0, \result=0, NULL=32777, NULL=32760, NULL=32775, NULL=32753, NULL=32768, retValue_acc=1, tmp___2=78, splverifierCounter=0, NULL=0, NULL=32771, NULL=32757, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1118565f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@66520ef3=78, NULL=32762, retValue_acc=0, NULL=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L266] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L470] int waterLevel = 1; [L471] int methaneLevelCritical = 0; [L638] int pumpRunning = 0; [L639] int systemActive = 1; [L803] int switchedOnBeforeTS ; [L852] int cleanupTimeShifts = 4; [L926] int retValue_acc ; [L927] int tmp ; [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); [L933] tmp = valid_product() [L935] COND TRUE \read(tmp) [L808] switchedOnBeforeTS = 0 [L568] int splverifierCounter ; [L569] int tmp ; [L570] int tmp___0 ; [L571] int tmp___1 ; [L572] int tmp___2 ; [L575] splverifierCounter = 0 Loop: [L577] COND TRUE 1 [L579] COND TRUE splverifierCounter < 4 [L585] tmp = __VERIFIER_nondet_int() [L587] COND FALSE !(\read(tmp)) [L595] tmp___0 = __VERIFIER_nondet_int() [L597] COND FALSE !(\read(tmp___0)) [L605] tmp___2 = __VERIFIER_nondet_int() [L607] COND TRUE \read(tmp___2) [L798] systemActive = 1 [L731] int retValue_acc ; [L734] retValue_acc = pumpRunning [L735] return (retValue_acc); [L817] switchedOnBeforeTS = isPumpRunning() [L650] COND FALSE !(\read(pumpRunning)) [L657] COND TRUE \read(systemActive) [L679] int tmp ; [L682] COND TRUE ! pumpRunning [L776] int retValue_acc ; [L777] int tmp ; [L778] int tmp___0 ; [L550] int retValue_acc ; [L553] COND TRUE waterLevel < 2 [L554] retValue_acc = 1 [L555] return (retValue_acc); [L782] tmp = isHighWaterSensorDry() [L784] COND TRUE \read(tmp) [L785] tmp___0 = 0 [L789] retValue_acc = tmp___0 [L790] return (retValue_acc); [L684] tmp = isHighWaterLevel() [L686] COND FALSE !(\read(tmp)) [L823] int tmp ; [L824] int tmp___0 ; [L541] int retValue_acc ; [L544] retValue_acc = waterLevel [L545] return (retValue_acc); [L828] tmp = getWaterLevel() [L830] COND TRUE tmp != 2 [L731] int retValue_acc ; [L734] retValue_acc = pumpRunning [L735] return (retValue_acc); [L832] tmp___0 = isPumpRunning() [L834] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-28 23:05:55,126 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f846b23c-d6ff-4b89-b05d-049ad72cbf5b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...