./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product03.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338eea9a-201b-445e-8b5c-85e9268ced96/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338eea9a-201b-445e-8b5c-85e9268ced96/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338eea9a-201b-445e-8b5c-85e9268ced96/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338eea9a-201b-445e-8b5c-85e9268ced96/bin/uautomizer-WNIpwEf4Nt/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product03.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338eea9a-201b-445e-8b5c-85e9268ced96/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338eea9a-201b-445e-8b5c-85e9268ced96/bin/uautomizer-WNIpwEf4Nt --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 274cb202d29433d0217a25907d4511df826f0eca ........................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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-4e77c04 [2021-10-13 01:14:37,396 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 01:14:37,398 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 01:14:37,429 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 01:14:37,429 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 01:14:37,431 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 01:14:37,433 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 01:14:37,435 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 01:14:37,438 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 01:14:37,439 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 01:14:37,444 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 01:14:37,445 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 01:14:37,447 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 01:14:37,449 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 01:14:37,452 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 01:14:37,455 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 01:14:37,458 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 01:14:37,464 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 01:14:37,467 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 01:14:37,471 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 01:14:37,477 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 01:14:37,478 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 01:14:37,481 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 01:14:37,483 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 01:14:37,489 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 01:14:37,494 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 01:14:37,494 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 01:14:37,495 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 01:14:37,497 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 01:14:37,499 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 01:14:37,499 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 01:14:37,500 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 01:14:37,502 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 01:14:37,503 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 01:14:37,505 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 01:14:37,505 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 01:14:37,506 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 01:14:37,506 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 01:14:37,507 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 01:14:37,508 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 01:14:37,508 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 01:14:37,509 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338eea9a-201b-445e-8b5c-85e9268ced96/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-13 01:14:37,563 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 01:14:37,564 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 01:14:37,564 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 01:14:37,564 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 01:14:37,565 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 01:14:37,565 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 01:14:37,566 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 01:14:37,566 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-13 01:14:37,566 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-13 01:14:37,566 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-13 01:14:37,567 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-13 01:14:37,567 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-13 01:14:37,567 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-13 01:14:37,567 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 01:14:37,568 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 01:14:37,568 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 01:14:37,568 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 01:14:37,568 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 01:14:37,569 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 01:14:37,569 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-13 01:14:37,569 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-13 01:14:37,569 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-13 01:14:37,570 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 01:14:37,570 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 01:14:37,570 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-13 01:14:37,570 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 01:14:37,570 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-13 01:14:37,571 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 01:14:37,571 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 01:14:37,571 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 01:14:37,572 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 01:14:37,572 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 01:14:37,573 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-13 01:14:37,573 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_338eea9a-201b-445e-8b5c-85e9268ced96/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338eea9a-201b-445e-8b5c-85e9268ced96/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 274cb202d29433d0217a25907d4511df826f0eca [2021-10-13 01:14:37,887 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 01:14:37,913 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 01:14:37,915 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 01:14:37,916 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 01:14:37,917 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 01:14:37,918 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338eea9a-201b-445e-8b5c-85e9268ced96/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/product-lines/minepump_spec3_product03.cil.c [2021-10-13 01:14:38,004 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338eea9a-201b-445e-8b5c-85e9268ced96/bin/uautomizer-WNIpwEf4Nt/data/795dcd08c/5e84b7727ee1423dbf6a2b7e4ad762b6/FLAG983ac3c27 [2021-10-13 01:14:38,601 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 01:14:38,602 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338eea9a-201b-445e-8b5c-85e9268ced96/sv-benchmarks/c/product-lines/minepump_spec3_product03.cil.c [2021-10-13 01:14:38,612 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338eea9a-201b-445e-8b5c-85e9268ced96/bin/uautomizer-WNIpwEf4Nt/data/795dcd08c/5e84b7727ee1423dbf6a2b7e4ad762b6/FLAG983ac3c27 [2021-10-13 01:14:38,885 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338eea9a-201b-445e-8b5c-85e9268ced96/bin/uautomizer-WNIpwEf4Nt/data/795dcd08c/5e84b7727ee1423dbf6a2b7e4ad762b6 [2021-10-13 01:14:38,887 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 01:14:38,889 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 01:14:38,890 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 01:14:38,890 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 01:14:38,894 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 01:14:38,895 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:14:38" (1/1) ... [2021-10-13 01:14:38,896 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ba31bf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:14:38, skipping insertion in model container [2021-10-13 01:14:38,896 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:14:38" (1/1) ... [2021-10-13 01:14:38,903 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 01:14:38,948 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 01:14:39,260 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_338eea9a-201b-445e-8b5c-85e9268ced96/sv-benchmarks/c/product-lines/minepump_spec3_product03.cil.c[14106,14119] [2021-10-13 01:14:39,275 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 01:14:39,292 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 01:14:39,391 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_338eea9a-201b-445e-8b5c-85e9268ced96/sv-benchmarks/c/product-lines/minepump_spec3_product03.cil.c[14106,14119] [2021-10-13 01:14:39,411 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 01:14:39,436 INFO L208 MainTranslator]: Completed translation [2021-10-13 01:14:39,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:14:39 WrapperNode [2021-10-13 01:14:39,436 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 01:14:39,438 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 01:14:39,438 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 01:14:39,438 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 01:14:39,446 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:14:39" (1/1) ... [2021-10-13 01:14:39,462 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:14:39" (1/1) ... [2021-10-13 01:14:39,508 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 01:14:39,509 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 01:14:39,509 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 01:14:39,509 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 01:14:39,518 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:14:39" (1/1) ... [2021-10-13 01:14:39,518 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:14:39" (1/1) ... [2021-10-13 01:14:39,529 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:14:39" (1/1) ... [2021-10-13 01:14:39,543 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:14:39" (1/1) ... [2021-10-13 01:14:39,552 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:14:39" (1/1) ... [2021-10-13 01:14:39,558 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:14:39" (1/1) ... [2021-10-13 01:14:39,560 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:14:39" (1/1) ... [2021-10-13 01:14:39,564 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 01:14:39,565 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 01:14:39,565 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 01:14:39,565 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 01:14:39,566 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:14:39" (1/1) ... [2021-10-13 01:14:39,574 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:14:39,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338eea9a-201b-445e-8b5c-85e9268ced96/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:14:39,597 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338eea9a-201b-445e-8b5c-85e9268ced96/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:14:39,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338eea9a-201b-445e-8b5c-85e9268ced96/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-13 01:14:39,645 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 01:14:39,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 01:14:39,646 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 01:14:39,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 01:14:40,461 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 01:14:40,462 INFO L299 CfgBuilder]: Removed 76 assume(true) statements. [2021-10-13 01:14:40,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:14:40 BoogieIcfgContainer [2021-10-13 01:14:40,466 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 01:14:40,474 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-13 01:14:40,474 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-13 01:14:40,479 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-13 01:14:40,480 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 01:14:40,481 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 01:14:38" (1/3) ... [2021-10-13 01:14:40,482 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@40058bb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 01:14:40, skipping insertion in model container [2021-10-13 01:14:40,482 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 01:14:40,483 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:14:39" (2/3) ... [2021-10-13 01:14:40,483 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@40058bb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 01:14:40, skipping insertion in model container [2021-10-13 01:14:40,483 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 01:14:40,483 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:14:40" (3/3) ... [2021-10-13 01:14:40,484 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product03.cil.c [2021-10-13 01:14:40,538 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-13 01:14:40,538 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-13 01:14:40,538 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-13 01:14:40,538 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-13 01:14:40,538 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-13 01:14:40,539 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-13 01:14:40,539 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-13 01:14:40,539 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-13 01:14:40,562 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 62 states, 61 states have (on average 1.5245901639344261) internal successors, (93), 61 states have internal predecessors, (93), 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) [2021-10-13 01:14:40,591 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 39 [2021-10-13 01:14:40,592 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:14:40,592 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:14:40,599 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-13 01:14:40,599 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:14:40,599 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-13 01:14:40,600 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 62 states, 61 states have (on average 1.5245901639344261) internal successors, (93), 61 states have internal predecessors, (93), 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) [2021-10-13 01:14:40,610 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 39 [2021-10-13 01:14:40,610 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:14:40,610 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:14:40,611 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-13 01:14:40,611 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:14:40,615 INFO L791 eck$LassoCheckResult]: Stem: 53#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~string13.base, #t~string13.offset := #Ultimate.allocOnStack(13);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(110, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 3 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string19.base, #t~string19.offset, 1);call write~init~int(80, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(117, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(109, #t~string19.base, 3 + #t~string19.offset, 1);call write~init~int(112, #t~string19.base, 4 + #t~string19.offset, 1);call write~init~int(58, #t~string19.base, 5 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 6 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(110, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 3 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string25.base, #t~string25.offset, 1);call write~init~int(32, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 2 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string27.base, #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 1 + #t~string27.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(30);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(9);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(21);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(30);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(9);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(21);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(25);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(25);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(13);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string71.base, #t~string71.offset, 1);call write~init~int(77, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(101, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(116, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(104, #t~string71.base, 4 + #t~string71.offset, 1);call write~init~int(58, #t~string71.base, 5 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 6 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string73.base, #t~string73.offset, 1);call write~init~int(82, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(73, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(84, #t~string73.base, 3 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 4 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string75.base, #t~string75.offset, 1);call write~init~int(75, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 2 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string77.base, #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 1 + #t~string77.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 45#L-1true havoc main_#res;havoc main_#t~ret67, main_~retValue_acc~7, main_~tmp~5;havoc main_~retValue_acc~7;havoc main_~tmp~5; 29#L635true havoc valid_product_#res;havoc valid_product_~retValue_acc~6;havoc valid_product_~retValue_acc~6;valid_product_~retValue_acc~6 := 1;valid_product_#res := valid_product_~retValue_acc~6; 37#L643true main_#t~ret67 := valid_product_#res;main_~tmp~5 := main_#t~ret67;havoc main_#t~ret67; 23#L774true assume 0 != main_~tmp~5; 27#L751true havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 59#L673-1true [2021-10-13 01:14:40,616 INFO L793 eck$LassoCheckResult]: Loop: 59#L673-1true assume !false; 44#L58true assume test_~splverifierCounter~0 < 4; 41#L59true test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 52#L67true assume !(0 != test_~tmp~0); 30#L67-1true test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 10#L77true assume !(0 != test_~tmp___0~0); 24#L77-1true test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 56#L87true assume 0 != test_~tmp___2~0; 49#L93-1true assume !(0 != ~pumpRunning~0); 50#L129true assume !(0 != ~systemActive~0); 19#L136true havoc __utac_acc__Specification3_spec__1_#t~ret64, __utac_acc__Specification3_spec__1_#t~ret65, __utac_acc__Specification3_spec__1_#t~ret66, __utac_acc__Specification3_spec__1_~tmp~4, __utac_acc__Specification3_spec__1_~tmp___0~1, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~4;havoc __utac_acc__Specification3_spec__1_~tmp___0~1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~8;havoc isMethaneLevelCritical_~retValue_acc~8;isMethaneLevelCritical_~retValue_acc~8 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~8; 28#L831true __utac_acc__Specification3_spec__1_#t~ret64 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret64;havoc __utac_acc__Specification3_spec__1_#t~ret64; 43#L667true assume 0 != __utac_acc__Specification3_spec__1_~tmp~4; 59#L673-1true [2021-10-13 01:14:40,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:14:40,621 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-10-13 01:14:40,630 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:14:40,630 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466512218] [2021-10-13 01:14:40,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:14:40,631 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:14:40,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:14:40,858 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:14:40,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:14:41,012 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:14:41,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:14:41,016 INFO L82 PathProgramCache]: Analyzing trace with hash -1673895426, now seen corresponding path program 1 times [2021-10-13 01:14:41,016 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:14:41,016 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363701070] [2021-10-13 01:14:41,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:14:41,017 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:14:41,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:14:41,023 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:14:41,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:14:41,032 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:14:41,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:14:41,034 INFO L82 PathProgramCache]: Analyzing trace with hash 40383512, now seen corresponding path program 1 times [2021-10-13 01:14:41,034 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:14:41,035 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288234394] [2021-10-13 01:14:41,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:14:41,035 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:14:41,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:14:41,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:14:41,193 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:14:41,193 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288234394] [2021-10-13 01:14:41,194 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288234394] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:14:41,194 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:14:41,194 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 01:14:41,194 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905516551] [2021-10-13 01:14:41,357 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:14:41,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 01:14:41,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-13 01:14:41,373 INFO L87 Difference]: Start difference. First operand has 62 states, 61 states have (on average 1.5245901639344261) internal successors, (93), 61 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:14:41,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:14:41,705 INFO L93 Difference]: Finished difference Result 174 states and 237 transitions. [2021-10-13 01:14:41,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 01:14:41,707 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 174 states and 237 transitions. [2021-10-13 01:14:41,718 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 109 [2021-10-13 01:14:41,728 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 174 states to 153 states and 216 transitions. [2021-10-13 01:14:41,729 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 153 [2021-10-13 01:14:41,732 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 153 [2021-10-13 01:14:41,732 INFO L73 IsDeterministic]: Start isDeterministic. Operand 153 states and 216 transitions. [2021-10-13 01:14:41,734 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 01:14:41,735 INFO L681 BuchiCegarLoop]: Abstraction has 153 states and 216 transitions. [2021-10-13 01:14:41,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states and 216 transitions. [2021-10-13 01:14:41,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 102. [2021-10-13 01:14:41,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 102 states have (on average 1.411764705882353) internal successors, (144), 101 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:14:41,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 144 transitions. [2021-10-13 01:14:41,782 INFO L704 BuchiCegarLoop]: Abstraction has 102 states and 144 transitions. [2021-10-13 01:14:41,783 INFO L587 BuchiCegarLoop]: Abstraction has 102 states and 144 transitions. [2021-10-13 01:14:41,783 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-13 01:14:41,783 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 102 states and 144 transitions. [2021-10-13 01:14:41,788 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 72 [2021-10-13 01:14:41,789 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:14:41,789 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:14:41,790 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-13 01:14:41,790 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:14:41,791 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~string13.base, #t~string13.offset := #Ultimate.allocOnStack(13);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(110, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 3 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string19.base, #t~string19.offset, 1);call write~init~int(80, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(117, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(109, #t~string19.base, 3 + #t~string19.offset, 1);call write~init~int(112, #t~string19.base, 4 + #t~string19.offset, 1);call write~init~int(58, #t~string19.base, 5 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 6 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(110, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 3 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string25.base, #t~string25.offset, 1);call write~init~int(32, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 2 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string27.base, #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 1 + #t~string27.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(30);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(9);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(21);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(30);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(9);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(21);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(25);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(25);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(13);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string71.base, #t~string71.offset, 1);call write~init~int(77, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(101, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(116, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(104, #t~string71.base, 4 + #t~string71.offset, 1);call write~init~int(58, #t~string71.base, 5 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 6 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string73.base, #t~string73.offset, 1);call write~init~int(82, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(73, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(84, #t~string73.base, 3 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 4 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string75.base, #t~string75.offset, 1);call write~init~int(75, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 2 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string77.base, #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 1 + #t~string77.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 307#L-1 havoc main_#res;havoc main_#t~ret67, main_~retValue_acc~7, main_~tmp~5;havoc main_~retValue_acc~7;havoc main_~tmp~5; 290#L635 havoc valid_product_#res;havoc valid_product_~retValue_acc~6;havoc valid_product_~retValue_acc~6;valid_product_~retValue_acc~6 := 1;valid_product_#res := valid_product_~retValue_acc~6; 291#L643 main_#t~ret67 := valid_product_#res;main_~tmp~5 := main_#t~ret67;havoc main_#t~ret67; 282#L774 assume 0 != main_~tmp~5; 283#L751 havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 266#L673-1 [2021-10-13 01:14:41,792 INFO L793 eck$LassoCheckResult]: Loop: 266#L673-1 assume !false; 306#L58 assume test_~splverifierCounter~0 < 4; 302#L59 test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 303#L67 assume !(0 != test_~tmp~0); 260#L67-1 test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 267#L77 assume !(0 != test_~tmp___0~0); 268#L77-1 test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 284#L87 assume 0 != test_~tmp___2~0; 299#L93-1 assume !(0 != ~pumpRunning~0); 296#L129 assume 0 != ~systemActive~0; 277#L136 havoc __utac_acc__Specification3_spec__1_#t~ret64, __utac_acc__Specification3_spec__1_#t~ret65, __utac_acc__Specification3_spec__1_#t~ret66, __utac_acc__Specification3_spec__1_~tmp~4, __utac_acc__Specification3_spec__1_~tmp___0~1, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~4;havoc __utac_acc__Specification3_spec__1_~tmp___0~1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~8;havoc isMethaneLevelCritical_~retValue_acc~8;isMethaneLevelCritical_~retValue_acc~8 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~8; 278#L831 __utac_acc__Specification3_spec__1_#t~ret64 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret64;havoc __utac_acc__Specification3_spec__1_#t~ret64; 289#L667 assume 0 != __utac_acc__Specification3_spec__1_~tmp~4; 266#L673-1 [2021-10-13 01:14:41,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:14:41,793 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-10-13 01:14:41,793 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:14:41,794 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936538578] [2021-10-13 01:14:41,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:14:41,795 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:14:41,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:14:41,889 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:14:41,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:14:42,001 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:14:42,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:14:42,002 INFO L82 PathProgramCache]: Analyzing trace with hash -1673984799, now seen corresponding path program 1 times [2021-10-13 01:14:42,002 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:14:42,002 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146380952] [2021-10-13 01:14:42,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:14:42,003 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:14:42,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:14:42,007 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:14:42,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:14:42,013 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:14:42,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:14:42,014 INFO L82 PathProgramCache]: Analyzing trace with hash 40294139, now seen corresponding path program 1 times [2021-10-13 01:14:42,014 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:14:42,015 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196608937] [2021-10-13 01:14:42,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:14:42,015 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:14:42,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:14:42,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:14:42,090 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:14:42,090 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196608937] [2021-10-13 01:14:42,092 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196608937] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:14:42,092 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:14:42,093 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 01:14:42,093 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776199976] [2021-10-13 01:14:42,200 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:14:42,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 01:14:42,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 01:14:42,203 INFO L87 Difference]: Start difference. First operand 102 states and 144 transitions. cyclomatic complexity: 45 Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:14:42,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:14:42,312 INFO L93 Difference]: Finished difference Result 319 states and 461 transitions. [2021-10-13 01:14:42,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-13 01:14:42,313 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 319 states and 461 transitions. [2021-10-13 01:14:42,321 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 240 [2021-10-13 01:14:42,326 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 319 states to 319 states and 461 transitions. [2021-10-13 01:14:42,327 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 319 [2021-10-13 01:14:42,329 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 319 [2021-10-13 01:14:42,329 INFO L73 IsDeterministic]: Start isDeterministic. Operand 319 states and 461 transitions. [2021-10-13 01:14:42,336 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 01:14:42,337 INFO L681 BuchiCegarLoop]: Abstraction has 319 states and 461 transitions. [2021-10-13 01:14:42,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states and 461 transitions. [2021-10-13 01:14:42,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 198. [2021-10-13 01:14:42,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 198 states have (on average 1.3838383838383839) internal successors, (274), 197 states have internal predecessors, (274), 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) [2021-10-13 01:14:42,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 274 transitions. [2021-10-13 01:14:42,360 INFO L704 BuchiCegarLoop]: Abstraction has 198 states and 274 transitions. [2021-10-13 01:14:42,361 INFO L587 BuchiCegarLoop]: Abstraction has 198 states and 274 transitions. [2021-10-13 01:14:42,361 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-13 01:14:42,361 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 198 states and 274 transitions. [2021-10-13 01:14:42,364 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 144 [2021-10-13 01:14:42,364 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:14:42,364 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:14:42,365 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-13 01:14:42,366 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:14:42,366 INFO L791 eck$LassoCheckResult]: Stem: 766#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~string13.base, #t~string13.offset := #Ultimate.allocOnStack(13);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(110, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 3 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string19.base, #t~string19.offset, 1);call write~init~int(80, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(117, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(109, #t~string19.base, 3 + #t~string19.offset, 1);call write~init~int(112, #t~string19.base, 4 + #t~string19.offset, 1);call write~init~int(58, #t~string19.base, 5 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 6 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(110, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 3 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string25.base, #t~string25.offset, 1);call write~init~int(32, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 2 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string27.base, #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 1 + #t~string27.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(30);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(9);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(21);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(30);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(9);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(21);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(25);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(25);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(13);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string71.base, #t~string71.offset, 1);call write~init~int(77, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(101, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(116, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(104, #t~string71.base, 4 + #t~string71.offset, 1);call write~init~int(58, #t~string71.base, 5 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 6 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string73.base, #t~string73.offset, 1);call write~init~int(82, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(73, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(84, #t~string73.base, 3 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 4 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string75.base, #t~string75.offset, 1);call write~init~int(75, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 2 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string77.base, #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 1 + #t~string77.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 762#L-1 havoc main_#res;havoc main_#t~ret67, main_~retValue_acc~7, main_~tmp~5;havoc main_~retValue_acc~7;havoc main_~tmp~5; 736#L635 havoc valid_product_#res;havoc valid_product_~retValue_acc~6;havoc valid_product_~retValue_acc~6;valid_product_~retValue_acc~6 := 1;valid_product_#res := valid_product_~retValue_acc~6; 737#L643 main_#t~ret67 := valid_product_#res;main_~tmp~5 := main_#t~ret67;havoc main_#t~ret67; 727#L774 assume 0 != main_~tmp~5; 728#L751 havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 705#L673-1 [2021-10-13 01:14:42,366 INFO L793 eck$LassoCheckResult]: Loop: 705#L673-1 assume !false; 761#L58 assume test_~splverifierCounter~0 < 4; 755#L59 test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 756#L67 assume !(0 != test_~tmp~0); 699#L67-1 test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 706#L77 assume !(0 != test_~tmp___0~0); 707#L77-1 test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 729#L87 assume 0 != test_~tmp___2~0; 751#L93-1 assume !(0 != ~pumpRunning~0); 748#L129 assume 0 != ~systemActive~0; 719#L136 havoc __utac_acc__Specification3_spec__1_#t~ret64, __utac_acc__Specification3_spec__1_#t~ret65, __utac_acc__Specification3_spec__1_#t~ret66, __utac_acc__Specification3_spec__1_~tmp~4, __utac_acc__Specification3_spec__1_~tmp___0~1, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~4;havoc __utac_acc__Specification3_spec__1_~tmp___0~1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~8;havoc isMethaneLevelCritical_~retValue_acc~8;isMethaneLevelCritical_~retValue_acc~8 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~8; 720#L831 __utac_acc__Specification3_spec__1_#t~ret64 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret64;havoc __utac_acc__Specification3_spec__1_#t~ret64; 759#L667 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~4);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; 760#L863 __utac_acc__Specification3_spec__1_#t~ret65 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~1 := __utac_acc__Specification3_spec__1_#t~ret65;havoc __utac_acc__Specification3_spec__1_#t~ret65; 738#L673 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~1); 705#L673-1 [2021-10-13 01:14:42,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:14:42,372 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2021-10-13 01:14:42,372 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:14:42,372 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521749630] [2021-10-13 01:14:42,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:14:42,373 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:14:42,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:14:42,463 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:14:42,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:14:42,558 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:14:42,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:14:42,558 INFO L82 PathProgramCache]: Analyzing trace with hash 1913349523, now seen corresponding path program 1 times [2021-10-13 01:14:42,559 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:14:42,559 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640291566] [2021-10-13 01:14:42,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:14:42,559 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:14:42,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:14:42,566 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:14:42,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:14:42,572 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:14:42,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:14:42,573 INFO L82 PathProgramCache]: Analyzing trace with hash 67967277, now seen corresponding path program 1 times [2021-10-13 01:14:42,574 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:14:42,574 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414703070] [2021-10-13 01:14:42,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:14:42,574 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:14:42,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:14:42,613 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:14:42,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:14:42,656 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:15:38,201 WARN L207 SmtUtils]: Spent 55.41 s on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-10-13 01:16:38,945 WARN L207 SmtUtils]: Spent 29.30 s on a formula simplification that was a NOOP. DAG size: 433 [2021-10-13 01:16:39,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 01:16:39 BoogieIcfgContainer [2021-10-13 01:16:39,122 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-13 01:16:39,123 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 01:16:39,123 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 01:16:39,123 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 01:16:39,124 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:14:40" (3/4) ... [2021-10-13 01:16:39,126 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-13 01:16:39,222 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338eea9a-201b-445e-8b5c-85e9268ced96/bin/uautomizer-WNIpwEf4Nt/witness.graphml [2021-10-13 01:16:39,227 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 01:16:39,228 INFO L168 Benchmark]: Toolchain (without parser) took 120338.96 ms. Allocated memory was 94.4 MB in the beginning and 140.5 MB in the end (delta: 46.1 MB). Free memory was 58.0 MB in the beginning and 39.7 MB in the end (delta: 18.3 MB). Peak memory consumption was 65.1 MB. Max. memory is 16.1 GB. [2021-10-13 01:16:39,229 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 94.4 MB. Free memory was 66.9 MB in the beginning and 66.9 MB in the end (delta: 28.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 01:16:39,229 INFO L168 Benchmark]: CACSL2BoogieTranslator took 546.52 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 57.8 MB in the beginning and 80.9 MB in the end (delta: -23.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 01:16:39,230 INFO L168 Benchmark]: Boogie Procedure Inliner took 70.60 ms. Allocated memory is still 113.2 MB. Free memory was 80.9 MB in the beginning and 78.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 01:16:39,230 INFO L168 Benchmark]: Boogie Preprocessor took 55.48 ms. Allocated memory is still 113.2 MB. Free memory was 78.3 MB in the beginning and 76.1 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 01:16:39,231 INFO L168 Benchmark]: RCFGBuilder took 901.22 ms. Allocated memory is still 113.2 MB. Free memory was 76.1 MB in the beginning and 87.2 MB in the end (delta: -11.1 MB). Peak memory consumption was 41.0 MB. Max. memory is 16.1 GB. [2021-10-13 01:16:39,231 INFO L168 Benchmark]: BuchiAutomizer took 118648.26 ms. Allocated memory was 113.2 MB in the beginning and 140.5 MB in the end (delta: 27.3 MB). Free memory was 87.2 MB in the beginning and 41.7 MB in the end (delta: 45.5 MB). Peak memory consumption was 90.4 MB. Max. memory is 16.1 GB. [2021-10-13 01:16:39,232 INFO L168 Benchmark]: Witness Printer took 104.27 ms. Allocated memory is still 140.5 MB. Free memory was 41.7 MB in the beginning and 39.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 01:16:39,235 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 94.4 MB. Free memory was 66.9 MB in the beginning and 66.9 MB in the end (delta: 28.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 546.52 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 57.8 MB in the beginning and 80.9 MB in the end (delta: -23.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 70.60 ms. Allocated memory is still 113.2 MB. Free memory was 80.9 MB in the beginning and 78.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 55.48 ms. Allocated memory is still 113.2 MB. Free memory was 78.3 MB in the beginning and 76.1 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 901.22 ms. Allocated memory is still 113.2 MB. Free memory was 76.1 MB in the beginning and 87.2 MB in the end (delta: -11.1 MB). Peak memory consumption was 41.0 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 118648.26 ms. Allocated memory was 113.2 MB in the beginning and 140.5 MB in the end (delta: 27.3 MB). Free memory was 87.2 MB in the beginning and 41.7 MB in the end (delta: 45.5 MB). Peak memory consumption was 90.4 MB. Max. memory is 16.1 GB. * Witness Printer took 104.27 ms. Allocated memory is still 140.5 MB. Free memory was 41.7 MB in the beginning and 39.7 MB in the end (delta: 2.0 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 6 locations. The remainder module has 198 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 118.5s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 117.8s. Construction of modules took 0.2s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 57.5ms AutomataMinimizationTime, 2 MinimizatonAttempts, 172 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 198 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 183 SDtfs, 635 SDslu, 658 SDs, 0 SdLazy, 78 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 234.4ms Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc2 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: 57]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {NULL=51454, NULL=0, NULL=0, NULL=51447, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@42f815b0=63, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@723dd714=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@37097c90=0, NULL=1, NULL=51452, NULL=51441, NULL=0, retValue_acc=0, NULL=51442, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@53fb9b=0, NULL=51446, methaneLevelCritical=0, NULL=0, tmp___1=0, NULL=51459, NULL=0, NULL=0, cleanupTimeShifts=4, tmp=0, NULL=51453, tmp=0, NULL=51449, NULL=29388, tmp___0=1, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=51439, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3451ce93=0, NULL=51462, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2a236595=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@18fcc75f=0, NULL=0, NULL=51456, tmp___0=0, NULL=0, NULL=51440, NULL=0, NULL=0, NULL=0, NULL=0, NULL=51457, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@31815b1d=0, \result=1, head=0, pumpRunning=0, NULL=51450, NULL=51445, \result=0, NULL=51460, NULL=0, NULL=0, NULL=0, tmp=1, NULL=0, NULL=51451, retValue_acc=1, NULL=0, NULL=0, NULL=51463, NULL=0, retValue_acc=1, NULL=29387, tmp___2=63, NULL=0, splverifierCounter=0, NULL=0, NULL=0, \result=0, NULL=51443, NULL=51448, NULL=51444, tmp___1=0, head=0, NULL=51455, NULL=51461, NULL=0, NULL=51458, NULL=0, NULL=29389} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L121] int pumpRunning = 0; [L122] int systemActive = 1; [L413] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L692] int cleanupTimeShifts = 4; [L788] int waterLevel = 1; [L789] int methaneLevelCritical = 0; [L765] int retValue_acc ; [L766] int tmp ; [L639] int retValue_acc ; [L642] retValue_acc = 1 [L643] return (retValue_acc); [L772] tmp = valid_product() [L774] COND TRUE \read(tmp) [L48] int splverifierCounter ; [L49] int tmp ; [L50] int tmp___0 ; [L51] int tmp___1 ; [L52] int tmp___2 ; [L55] splverifierCounter = 0 Loop: [L57] COND TRUE 1 [L59] COND TRUE splverifierCounter < 4 [L65] tmp = __VERIFIER_nondet_int() [L67] COND FALSE !(\read(tmp)) [L75] tmp___0 = __VERIFIER_nondet_int() [L77] COND FALSE !(\read(tmp___0)) [L85] tmp___2 = __VERIFIER_nondet_int() [L87] COND TRUE \read(tmp___2) [L129] COND FALSE !(\read(pumpRunning)) [L136] COND TRUE \read(systemActive) [L659] int tmp ; [L660] int tmp___0 ; [L661] int tmp___1 ; [L827] int retValue_acc ; [L830] retValue_acc = methaneLevelCritical [L831] return (retValue_acc); [L665] tmp = isMethaneLevelCritical() [L667] COND FALSE !(\read(tmp)) [L859] int retValue_acc ; [L862] retValue_acc = waterLevel [L863] return (retValue_acc); [L671] tmp___0 = getWaterLevel() [L673] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-13 01:16:39,333 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338eea9a-201b-445e-8b5c-85e9268ced96/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...