./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product36.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_c14580d4-f1a8-4ee8-9ae7-fd196072e86f/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c14580d4-f1a8-4ee8-9ae7-fd196072e86f/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_c14580d4-f1a8-4ee8-9ae7-fd196072e86f/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c14580d4-f1a8-4ee8-9ae7-fd196072e86f/bin/uautomizer-GMMbpWq8iD/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product36.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c14580d4-f1a8-4ee8-9ae7-fd196072e86f/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_c14580d4-f1a8-4ee8-9ae7-fd196072e86f/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 dae9a870dcbd894d53325794bcd1e36e0da0523a0c6f117be41bebebda51818a .................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 23:41:52,454 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:41:52,456 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:41:52,511 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:41:52,511 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:41:52,515 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:41:52,517 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:41:52,521 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:41:52,524 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:41:52,530 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:41:52,531 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:41:52,533 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:41:52,534 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:41:52,537 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:41:52,540 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:41:52,544 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:41:52,546 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:41:52,547 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:41:52,553 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:41:52,561 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:41:52,563 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:41:52,564 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:41:52,568 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:41:52,569 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:41:52,578 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:41:52,579 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:41:52,579 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:41:52,581 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:41:52,582 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:41:52,584 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:41:52,585 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:41:52,586 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:41:52,588 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:41:52,589 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:41:52,591 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:41:52,592 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:41:52,592 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:41:52,593 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:41:52,593 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:41:52,594 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:41:52,595 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:41:52,596 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c14580d4-f1a8-4ee8-9ae7-fd196072e86f/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-28 23:41:52,647 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:41:52,647 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:41:52,648 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:41:52,648 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:41:52,649 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:41:52,649 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:41:52,650 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:41:52,650 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 23:41:52,650 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 23:41:52,651 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 23:41:52,651 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 23:41:52,651 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 23:41:52,651 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 23:41:52,652 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:41:52,652 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:41:52,652 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:41:52,652 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:41:52,653 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:41:52,653 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:41:52,653 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 23:41:52,653 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 23:41:52,654 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 23:41:52,654 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:41:52,654 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:41:52,655 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 23:41:52,655 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:41:52,655 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 23:41:52,655 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:41:52,656 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:41:52,656 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:41:52,656 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:41:52,657 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:41:52,658 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 23:41:52,659 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_c14580d4-f1a8-4ee8-9ae7-fd196072e86f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c14580d4-f1a8-4ee8-9ae7-fd196072e86f/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dae9a870dcbd894d53325794bcd1e36e0da0523a0c6f117be41bebebda51818a [2021-10-28 23:41:52,933 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:41:52,956 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:41:52,959 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:41:52,960 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:41:52,961 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:41:52,962 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c14580d4-f1a8-4ee8-9ae7-fd196072e86f/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/product-lines/minepump_spec1_product36.cil.c [2021-10-28 23:41:53,023 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c14580d4-f1a8-4ee8-9ae7-fd196072e86f/bin/uautomizer-GMMbpWq8iD/data/5fdab681f/22eccd311d564fa299a18c16d8871aef/FLAGaefa8db11 [2021-10-28 23:41:53,536 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:41:53,537 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c14580d4-f1a8-4ee8-9ae7-fd196072e86f/sv-benchmarks/c/product-lines/minepump_spec1_product36.cil.c [2021-10-28 23:41:53,550 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c14580d4-f1a8-4ee8-9ae7-fd196072e86f/bin/uautomizer-GMMbpWq8iD/data/5fdab681f/22eccd311d564fa299a18c16d8871aef/FLAGaefa8db11 [2021-10-28 23:41:53,855 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c14580d4-f1a8-4ee8-9ae7-fd196072e86f/bin/uautomizer-GMMbpWq8iD/data/5fdab681f/22eccd311d564fa299a18c16d8871aef [2021-10-28 23:41:53,857 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:41:53,859 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:41:53,861 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:41:53,861 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:41:53,866 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:41:53,867 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:41:53" (1/1) ... [2021-10-28 23:41:53,868 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@583da1f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:41:53, skipping insertion in model container [2021-10-28 23:41:53,868 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:41:53" (1/1) ... [2021-10-28 23:41:53,877 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:41:53,946 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:41:54,114 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_c14580d4-f1a8-4ee8-9ae7-fd196072e86f/sv-benchmarks/c/product-lines/minepump_spec1_product36.cil.c[1605,1618] [2021-10-28 23:41:54,225 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:41:54,236 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:41:54,250 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_c14580d4-f1a8-4ee8-9ae7-fd196072e86f/sv-benchmarks/c/product-lines/minepump_spec1_product36.cil.c[1605,1618] [2021-10-28 23:41:54,307 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:41:54,326 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:41:54,327 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:41:54 WrapperNode [2021-10-28 23:41:54,327 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:41:54,328 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:41:54,328 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:41:54,328 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:41:54,335 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:41:54" (1/1) ... [2021-10-28 23:41:54,352 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:41:54" (1/1) ... [2021-10-28 23:41:54,409 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:41:54,410 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:41:54,411 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:41:54,411 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:41:54,420 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:41:54" (1/1) ... [2021-10-28 23:41:54,420 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:41:54" (1/1) ... [2021-10-28 23:41:54,436 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:41:54" (1/1) ... [2021-10-28 23:41:54,436 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:41:54" (1/1) ... [2021-10-28 23:41:54,449 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:41:54" (1/1) ... [2021-10-28 23:41:54,455 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:41:54" (1/1) ... [2021-10-28 23:41:54,458 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:41:54" (1/1) ... [2021-10-28 23:41:54,477 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:41:54,478 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:41:54,478 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:41:54,478 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:41:54,483 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:41:54" (1/1) ... [2021-10-28 23:41:54,493 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:41:54,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c14580d4-f1a8-4ee8-9ae7-fd196072e86f/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:41:54,521 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c14580d4-f1a8-4ee8-9ae7-fd196072e86f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:41:54,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c14580d4-f1a8-4ee8-9ae7-fd196072e86f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 23:41:54,560 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:41:54,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:41:54,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:41:54,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:41:55,479 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:41:55,480 INFO L299 CfgBuilder]: Removed 102 assume(true) statements. [2021-10-28 23:41:55,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:41:55 BoogieIcfgContainer [2021-10-28 23:41:55,482 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:41:55,484 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 23:41:55,484 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 23:41:55,489 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 23:41:55,490 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:41:55,491 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 11:41:53" (1/3) ... [2021-10-28 23:41:55,493 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@56148539 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:41:55, skipping insertion in model container [2021-10-28 23:41:55,493 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:41:55,493 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:41:54" (2/3) ... [2021-10-28 23:41:55,494 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@56148539 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:41:55, skipping insertion in model container [2021-10-28 23:41:55,494 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:41:55,494 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:41:55" (3/3) ... [2021-10-28 23:41:55,496 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product36.cil.c [2021-10-28 23:41:55,559 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 23:41:55,559 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 23:41:55,559 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 23:41:55,560 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 23:41:55,560 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 23:41:55,560 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 23:41:55,560 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 23:41:55,560 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 23:41:55,582 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 77 states, 76 states have (on average 1.5394736842105263) internal successors, (117), 76 states have internal predecessors, (117), 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 23:41:55,617 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2021-10-28 23:41:55,617 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:41:55,618 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:41:55,627 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 23:41:55,627 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:41:55,627 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 23:41:55,629 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 77 states, 76 states have (on average 1.5394736842105263) internal successors, (117), 76 states have internal predecessors, (117), 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 23:41:55,643 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2021-10-28 23:41:55,643 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:41:55,644 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:41:55,646 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 23:41:55,647 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:41:55,658 INFO L791 eck$LassoCheckResult]: Stem: 64#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~string10.base, #t~string10.offset := #Ultimate.allocOnStack(13);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(110, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 2 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 3 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string16.base, #t~string16.offset, 1);call write~init~int(80, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(117, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(109, #t~string16.base, 3 + #t~string16.offset, 1);call write~init~int(112, #t~string16.base, 4 + #t~string16.offset, 1);call write~init~int(58, #t~string16.base, 5 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 6 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string22.base, #t~string22.offset, 1);call write~init~int(32, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string24.base, #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 1 + #t~string24.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(13);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string29.base, #t~string29.offset, 1);call write~init~int(77, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(101, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(116, #t~string29.base, 3 + #t~string29.offset, 1);call write~init~int(104, #t~string29.base, 4 + #t~string29.offset, 1);call write~init~int(58, #t~string29.base, 5 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 6 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string31.base, #t~string31.offset, 1);call write~init~int(82, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(73, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(84, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 4 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string33.base, #t~string33.offset, 1);call write~init~int(75, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 2 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string35.base, #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 1 + #t~string35.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(21);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(21);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(30);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(9);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(25);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(30);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(9);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 51#L-1true havoc main_#res;havoc main_#t~ret78, main_~retValue_acc~11, main_~tmp~7;havoc main_~retValue_acc~11;havoc main_~tmp~7; 36#L438true havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 48#L446true main_#t~ret78 := valid_product_#res;main_~tmp~7 := main_#t~ret78;havoc main_#t~ret78; 16#L925true assume 0 != main_~tmp~7; 39#L902true havoc test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 20#L825-1true [2021-10-28 23:41:55,659 INFO L793 eck$LassoCheckResult]: Loop: 20#L825-1true assume !false; 44#L355true assume test_~splverifierCounter~0 < 4; 28#L356true test_~tmp~2 := test_#t~nondet36;havoc test_#t~nondet36; 73#L364true assume !(0 != test_~tmp~2); 50#L364-1true test_~tmp___0~1 := test_#t~nondet37;havoc test_#t~nondet37; 79#L374true assume !(0 != test_~tmp___0~1); 43#L374-1true test_~tmp___2~0 := test_#t~nondet38;havoc test_#t~nondet38; 76#L384true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 22#L392-1true assume !(0 != ~pumpRunning~0); 29#L78true assume !(0 != ~systemActive~0); 47#L85true havoc __utac_acc__Specification1_spec__1_#t~ret76, __utac_acc__Specification1_spec__1_#t~ret77, __utac_acc__Specification1_spec__1_~tmp~6, __utac_acc__Specification1_spec__1_~tmp___0~2;havoc __utac_acc__Specification1_spec__1_~tmp~6;havoc __utac_acc__Specification1_spec__1_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 31#L292true __utac_acc__Specification1_spec__1_#t~ret76 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~6 := __utac_acc__Specification1_spec__1_#t~ret76;havoc __utac_acc__Specification1_spec__1_#t~ret76; 71#L825true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~6); 20#L825-1true [2021-10-28 23:41:55,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:41:55,666 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-10-28 23:41:55,677 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:41:55,678 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974622582] [2021-10-28 23:41:55,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:41:55,680 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:41:55,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:41:55,977 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:41:56,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:41:56,222 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:41:56,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:41:56,225 INFO L85 PathProgramCache]: Analyzing trace with hash -1671986804, now seen corresponding path program 1 times [2021-10-28 23:41:56,226 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:41:56,226 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436633943] [2021-10-28 23:41:56,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:41:56,227 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:41:56,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:41:56,302 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 23:41:56,304 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:41:56,305 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436633943] [2021-10-28 23:41:56,307 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436633943] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:41:56,307 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:41:56,307 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:41:56,308 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545407156] [2021-10-28 23:41:56,312 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 23:41:56,313 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:41:56,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:41:56,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:41:56,330 INFO L87 Difference]: Start difference. First operand has 77 states, 76 states have (on average 1.5394736842105263) internal successors, (117), 76 states have internal predecessors, (117), 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 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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 23:41:56,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:41:56,388 INFO L93 Difference]: Finished difference Result 148 states and 210 transitions. [2021-10-28 23:41:56,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:41:56,391 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 148 states and 210 transitions. [2021-10-28 23:41:56,396 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 94 [2021-10-28 23:41:56,402 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 148 states to 134 states and 195 transitions. [2021-10-28 23:41:56,403 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 134 [2021-10-28 23:41:56,404 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 134 [2021-10-28 23:41:56,405 INFO L73 IsDeterministic]: Start isDeterministic. Operand 134 states and 195 transitions. [2021-10-28 23:41:56,406 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:41:56,407 INFO L681 BuchiCegarLoop]: Abstraction has 134 states and 195 transitions. [2021-10-28 23:41:56,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states and 195 transitions. [2021-10-28 23:41:56,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 132. [2021-10-28 23:41:56,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 132 states have (on average 1.4545454545454546) internal successors, (192), 131 states have internal predecessors, (192), 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 23:41:56,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 192 transitions. [2021-10-28 23:41:56,448 INFO L704 BuchiCegarLoop]: Abstraction has 132 states and 192 transitions. [2021-10-28 23:41:56,448 INFO L587 BuchiCegarLoop]: Abstraction has 132 states and 192 transitions. [2021-10-28 23:41:56,448 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 23:41:56,448 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 132 states and 192 transitions. [2021-10-28 23:41:56,450 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 92 [2021-10-28 23:41:56,451 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:41:56,451 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:41:56,451 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 23:41:56,452 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:41:56,452 INFO L791 eck$LassoCheckResult]: Stem: 309#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~string10.base, #t~string10.offset := #Ultimate.allocOnStack(13);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(110, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 2 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 3 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string16.base, #t~string16.offset, 1);call write~init~int(80, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(117, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(109, #t~string16.base, 3 + #t~string16.offset, 1);call write~init~int(112, #t~string16.base, 4 + #t~string16.offset, 1);call write~init~int(58, #t~string16.base, 5 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 6 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string22.base, #t~string22.offset, 1);call write~init~int(32, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string24.base, #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 1 + #t~string24.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(13);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string29.base, #t~string29.offset, 1);call write~init~int(77, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(101, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(116, #t~string29.base, 3 + #t~string29.offset, 1);call write~init~int(104, #t~string29.base, 4 + #t~string29.offset, 1);call write~init~int(58, #t~string29.base, 5 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 6 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string31.base, #t~string31.offset, 1);call write~init~int(82, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(73, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(84, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 4 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string33.base, #t~string33.offset, 1);call write~init~int(75, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 2 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string35.base, #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 1 + #t~string35.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(21);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(21);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(30);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(9);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(25);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(30);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(9);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 298#L-1 havoc main_#res;havoc main_#t~ret78, main_~retValue_acc~11, main_~tmp~7;havoc main_~retValue_acc~11;havoc main_~tmp~7; 284#L438 havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 285#L446 main_#t~ret78 := valid_product_#res;main_~tmp~7 := main_#t~ret78;havoc main_#t~ret78; 254#L925 assume 0 != main_~tmp~7; 255#L902 havoc test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 253#L825-1 [2021-10-28 23:41:56,452 INFO L793 eck$LassoCheckResult]: Loop: 253#L825-1 assume !false; 258#L355 assume test_~splverifierCounter~0 < 4; 272#L356 test_~tmp~2 := test_#t~nondet36;havoc test_#t~nondet36; 273#L364 assume !(0 != test_~tmp~2); 282#L364-1 test_~tmp___0~1 := test_#t~nondet37;havoc test_#t~nondet37; 297#L374 assume !(0 != test_~tmp___0~1); 292#L374-1 test_~tmp___2~0 := test_#t~nondet38;havoc test_#t~nondet38; 293#L384 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 261#L392-1 assume !(0 != ~pumpRunning~0); 263#L78 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret7, processEnvironment_~tmp~0;havoc processEnvironment_~tmp~0; 234#L110 assume !(0 == ~pumpRunning~0); 236#L85 havoc __utac_acc__Specification1_spec__1_#t~ret76, __utac_acc__Specification1_spec__1_#t~ret77, __utac_acc__Specification1_spec__1_~tmp~6, __utac_acc__Specification1_spec__1_~tmp___0~2;havoc __utac_acc__Specification1_spec__1_~tmp~6;havoc __utac_acc__Specification1_spec__1_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 274#L292 __utac_acc__Specification1_spec__1_#t~ret76 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~6 := __utac_acc__Specification1_spec__1_#t~ret76;havoc __utac_acc__Specification1_spec__1_#t~ret76; 275#L825 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~6); 253#L825-1 [2021-10-28 23:41:56,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:41:56,453 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-10-28 23:41:56,453 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:41:56,454 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031167198] [2021-10-28 23:41:56,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:41:56,454 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:41:56,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:41:56,572 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:41:56,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:41:56,634 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:41:56,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:41:56,634 INFO L85 PathProgramCache]: Analyzing trace with hash -323593893, now seen corresponding path program 1 times [2021-10-28 23:41:56,635 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:41:56,635 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118529349] [2021-10-28 23:41:56,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:41:56,635 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:41:56,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:41:56,652 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 23:41:56,653 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:41:56,653 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118529349] [2021-10-28 23:41:56,653 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118529349] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:41:56,653 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:41:56,654 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:41:56,654 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392896793] [2021-10-28 23:41:56,654 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 23:41:56,654 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:41:56,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:41:56,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:41:56,655 INFO L87 Difference]: Start difference. First operand 132 states and 192 transitions. cyclomatic complexity: 63 Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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 23:41:56,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:41:56,718 INFO L93 Difference]: Finished difference Result 215 states and 298 transitions. [2021-10-28 23:41:56,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:41:56,719 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 215 states and 298 transitions. [2021-10-28 23:41:56,723 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 155 [2021-10-28 23:41:56,726 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 215 states to 215 states and 298 transitions. [2021-10-28 23:41:56,727 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 215 [2021-10-28 23:41:56,727 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 215 [2021-10-28 23:41:56,727 INFO L73 IsDeterministic]: Start isDeterministic. Operand 215 states and 298 transitions. [2021-10-28 23:41:56,729 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:41:56,729 INFO L681 BuchiCegarLoop]: Abstraction has 215 states and 298 transitions. [2021-10-28 23:41:56,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states and 298 transitions. [2021-10-28 23:41:56,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 215. [2021-10-28 23:41:56,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 215 states have (on average 1.386046511627907) internal successors, (298), 214 states have internal predecessors, (298), 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 23:41:56,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 298 transitions. [2021-10-28 23:41:56,746 INFO L704 BuchiCegarLoop]: Abstraction has 215 states and 298 transitions. [2021-10-28 23:41:56,746 INFO L587 BuchiCegarLoop]: Abstraction has 215 states and 298 transitions. [2021-10-28 23:41:56,746 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 23:41:56,747 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 215 states and 298 transitions. [2021-10-28 23:41:56,752 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 155 [2021-10-28 23:41:56,753 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:41:56,753 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:41:56,754 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 23:41:56,754 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] [2021-10-28 23:41:56,754 INFO L791 eck$LassoCheckResult]: Stem: 670#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~string10.base, #t~string10.offset := #Ultimate.allocOnStack(13);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(110, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 2 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 3 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string16.base, #t~string16.offset, 1);call write~init~int(80, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(117, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(109, #t~string16.base, 3 + #t~string16.offset, 1);call write~init~int(112, #t~string16.base, 4 + #t~string16.offset, 1);call write~init~int(58, #t~string16.base, 5 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 6 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string22.base, #t~string22.offset, 1);call write~init~int(32, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string24.base, #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 1 + #t~string24.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(13);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string29.base, #t~string29.offset, 1);call write~init~int(77, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(101, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(116, #t~string29.base, 3 + #t~string29.offset, 1);call write~init~int(104, #t~string29.base, 4 + #t~string29.offset, 1);call write~init~int(58, #t~string29.base, 5 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 6 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string31.base, #t~string31.offset, 1);call write~init~int(82, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(73, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(84, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 4 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string33.base, #t~string33.offset, 1);call write~init~int(75, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 2 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string35.base, #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 1 + #t~string35.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(21);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(21);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(30);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(9);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(25);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(30);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(9);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 658#L-1 havoc main_#res;havoc main_#t~ret78, main_~retValue_acc~11, main_~tmp~7;havoc main_~retValue_acc~11;havoc main_~tmp~7; 639#L438 havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 640#L446 main_#t~ret78 := valid_product_#res;main_~tmp~7 := main_#t~ret78;havoc main_#t~ret78; 608#L925 assume 0 != main_~tmp~7; 609#L902 havoc test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 605#L825-1 [2021-10-28 23:41:56,754 INFO L793 eck$LassoCheckResult]: Loop: 605#L825-1 assume !false; 754#L355 assume test_~splverifierCounter~0 < 4; 755#L356 test_~tmp~2 := test_#t~nondet36;havoc test_#t~nondet36; 797#L364 assume !(0 != test_~tmp~2); 795#L364-1 test_~tmp___0~1 := test_#t~nondet37;havoc test_#t~nondet37; 794#L374 assume !(0 != test_~tmp___0~1); 792#L374-1 test_~tmp___2~0 := test_#t~nondet38;havoc test_#t~nondet38; 791#L384 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 681#L392-1 assume !(0 != ~pumpRunning~0); 727#L78 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret7, processEnvironment_~tmp~0;havoc processEnvironment_~tmp~0; 786#L110 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret25, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~1, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~1;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~5;havoc isHighWaterSensorDry_~retValue_acc~5; 726#L332 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~5; 783#L337 isHighWaterLevel_#t~ret25 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~1 := isHighWaterLevel_#t~ret25;havoc isHighWaterLevel_#t~ret25; 735#L212 assume 0 != isHighWaterLevel_~tmp~1;isHighWaterLevel_~tmp___0~0 := 0; 680#L212-2 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 659#L218 processEnvironment_#t~ret7 := isHighWaterLevel_#res;processEnvironment_~tmp~0 := processEnvironment_#t~ret7;havoc processEnvironment_#t~ret7; 660#L114 assume !(0 != processEnvironment_~tmp~0); 651#L85 havoc __utac_acc__Specification1_spec__1_#t~ret76, __utac_acc__Specification1_spec__1_#t~ret77, __utac_acc__Specification1_spec__1_~tmp~6, __utac_acc__Specification1_spec__1_~tmp___0~2;havoc __utac_acc__Specification1_spec__1_~tmp~6;havoc __utac_acc__Specification1_spec__1_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 630#L292 __utac_acc__Specification1_spec__1_#t~ret76 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~6 := __utac_acc__Specification1_spec__1_#t~ret76;havoc __utac_acc__Specification1_spec__1_#t~ret76; 631#L825 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~6); 605#L825-1 [2021-10-28 23:41:56,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:41:56,755 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2021-10-28 23:41:56,755 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:41:56,755 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980052280] [2021-10-28 23:41:56,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:41:56,756 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:41:56,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:41:56,797 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:41:56,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:41:56,849 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:41:56,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:41:56,850 INFO L85 PathProgramCache]: Analyzing trace with hash -1551490649, now seen corresponding path program 1 times [2021-10-28 23:41:56,850 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:41:56,851 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373678896] [2021-10-28 23:41:56,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:41:56,851 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:41:56,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:41:56,857 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:41:56,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:41:56,866 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:41:56,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:41:56,867 INFO L85 PathProgramCache]: Analyzing trace with hash -1536778675, now seen corresponding path program 1 times [2021-10-28 23:41:56,867 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:41:56,867 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309506923] [2021-10-28 23:41:56,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:41:56,868 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:41:56,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:41:56,905 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:41:56,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:41:56,955 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:42:55,419 WARN L207 SmtUtils]: Spent 58.17 s on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-10-28 23:43:52,371 WARN L207 SmtUtils]: Spent 26.69 s on a formula simplification that was a NOOP. DAG size: 433 [2021-10-28 23:43:52,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 11:43:52 BoogieIcfgContainer [2021-10-28 23:43:52,478 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 23:43:52,478 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:43:52,479 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:43:52,479 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:43:52,479 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:41:55" (3/4) ... [2021-10-28 23:43:52,482 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-28 23:43:52,528 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c14580d4-f1a8-4ee8-9ae7-fd196072e86f/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-28 23:43:52,528 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:43:52,529 INFO L168 Benchmark]: Toolchain (without parser) took 118669.57 ms. Allocated memory was 115.3 MB in the beginning and 167.8 MB in the end (delta: 52.4 MB). Free memory was 88.5 MB in the beginning and 123.9 MB in the end (delta: -35.3 MB). Peak memory consumption was 17.0 MB. Max. memory is 16.1 GB. [2021-10-28 23:43:52,529 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 115.3 MB. Free memory is still 70.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:43:52,530 INFO L168 Benchmark]: CACSL2BoogieTranslator took 466.39 ms. Allocated memory is still 115.3 MB. Free memory was 88.2 MB in the beginning and 82.9 MB in the end (delta: 5.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:43:52,530 INFO L168 Benchmark]: Boogie Procedure Inliner took 81.63 ms. Allocated memory is still 115.3 MB. Free memory was 82.9 MB in the beginning and 79.9 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:43:52,531 INFO L168 Benchmark]: Boogie Preprocessor took 66.95 ms. Allocated memory is still 115.3 MB. Free memory was 79.9 MB in the beginning and 77.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:43:52,531 INFO L168 Benchmark]: RCFGBuilder took 1004.41 ms. Allocated memory was 115.3 MB in the beginning and 138.4 MB in the end (delta: 23.1 MB). Free memory was 77.8 MB in the beginning and 102.9 MB in the end (delta: -25.1 MB). Peak memory consumption was 35.0 MB. Max. memory is 16.1 GB. [2021-10-28 23:43:52,532 INFO L168 Benchmark]: BuchiAutomizer took 116994.09 ms. Allocated memory was 138.4 MB in the beginning and 167.8 MB in the end (delta: 29.4 MB). Free memory was 102.9 MB in the beginning and 125.9 MB in the end (delta: -23.0 MB). Peak memory consumption was 103.6 MB. Max. memory is 16.1 GB. [2021-10-28 23:43:52,532 INFO L168 Benchmark]: Witness Printer took 49.60 ms. Allocated memory is still 167.8 MB. Free memory was 125.9 MB in the beginning and 123.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:43:52,535 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 115.3 MB. Free memory is still 70.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 466.39 ms. Allocated memory is still 115.3 MB. Free memory was 88.2 MB in the beginning and 82.9 MB in the end (delta: 5.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 81.63 ms. Allocated memory is still 115.3 MB. Free memory was 82.9 MB in the beginning and 79.9 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 66.95 ms. Allocated memory is still 115.3 MB. Free memory was 79.9 MB in the beginning and 77.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1004.41 ms. Allocated memory was 115.3 MB in the beginning and 138.4 MB in the end (delta: 23.1 MB). Free memory was 77.8 MB in the beginning and 102.9 MB in the end (delta: -25.1 MB). Peak memory consumption was 35.0 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 116994.09 ms. Allocated memory was 138.4 MB in the beginning and 167.8 MB in the end (delta: 29.4 MB). Free memory was 102.9 MB in the beginning and 125.9 MB in the end (delta: -23.0 MB). Peak memory consumption was 103.6 MB. Max. memory is 16.1 GB. * Witness Printer took 49.60 ms. Allocated memory is still 167.8 MB. Free memory was 125.9 MB in the beginning and 123.9 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 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 215 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 116.9s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 116.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 215 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 217 SDtfs, 185 SDslu, 146 SDs, 0 SdLazy, 32 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI2 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: 354]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=24685} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=24688, NULL=0, NULL=24685, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@15138514=0, NULL=24708, NULL=0, NULL=0, NULL=24711, NULL=24707, NULL=24704, methaneLevelCritical=0, tmp___0=0, tmp=0, NULL=0, NULL=0, NULL=24697, retValue_acc=0, NULL=24705, tmp___1=0, NULL=24695, tmp___0=0, NULL=0, NULL=0, NULL=24690, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@56e47828=0, cleanupTimeShifts=4, NULL=24691, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@55b769aa=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@515bf82c=81, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5785cb1=0, NULL=24701, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4054ac07=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=24710, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3845ecb6=0, retValue_acc=0, NULL=24689, \result=0, NULL=0, NULL=24703, retValue_acc=0, NULL=24686, \result=1, NULL=24698, head=0, pumpRunning=0, \result=0, retValue_acc=1, tmp=0, NULL=0, NULL=0, NULL=0, tmp=1, NULL=0, NULL=0, NULL=24702, \result=1, NULL=24713, retValue_acc=1, NULL=24692, NULL=0, NULL=0, tmp=1, NULL=0, NULL=24700, tmp___2=81, tmp___0=0, splverifierCounter=0, NULL=0, NULL=0, \result=0, NULL=24706, NULL=24687, NULL=24709, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3633cff1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5bcfc92b=0, tmp=0, NULL=24694, head=0, NULL=24693, NULL=0, NULL=24696, NULL=0, NULL=24699, NULL=0, NULL=0, NULL=24712} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L70] int pumpRunning = 0; [L71] int systemActive = 1; [L249] int waterLevel = 1; [L250] int methaneLevelCritical = 0; [L620] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L843] int cleanupTimeShifts = 4; [L916] int retValue_acc ; [L917] int tmp ; [L442] int retValue_acc ; [L445] retValue_acc = 1 [L446] return (retValue_acc); [L923] tmp = valid_product() [L925] COND TRUE \read(tmp) [L345] int splverifierCounter ; [L346] int tmp ; [L347] int tmp___0 ; [L348] int tmp___1 ; [L349] int tmp___2 ; [L352] splverifierCounter = 0 Loop: [L354] COND TRUE 1 [L356] COND TRUE splverifierCounter < 4 [L362] tmp = __VERIFIER_nondet_int() [L364] COND FALSE !(\read(tmp)) [L372] tmp___0 = __VERIFIER_nondet_int() [L374] COND FALSE !(\read(tmp___0)) [L382] tmp___2 = __VERIFIER_nondet_int() [L384] COND TRUE \read(tmp___2) [L241] systemActive = 1 [L78] COND FALSE !(\read(pumpRunning)) [L85] COND TRUE \read(systemActive) [L107] int tmp ; [L110] COND TRUE ! pumpRunning [L204] int retValue_acc ; [L205] int tmp ; [L206] int tmp___0 ; [L329] int retValue_acc ; [L332] COND TRUE waterLevel < 2 [L333] retValue_acc = 1 [L334] return (retValue_acc); [L210] tmp = isHighWaterSensorDry() [L212] COND TRUE \read(tmp) [L213] tmp___0 = 0 [L217] retValue_acc = tmp___0 [L218] return (retValue_acc); [L112] tmp = isHighWaterLevel() [L114] COND FALSE !(\read(tmp)) [L818] int tmp ; [L819] int tmp___0 ; [L288] int retValue_acc ; [L291] retValue_acc = methaneLevelCritical [L292] return (retValue_acc); [L823] tmp = isMethaneLevelCritical() [L825] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-28 23:43:52,598 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c14580d4-f1a8-4ee8-9ae7-fd196072e86f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...