./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product63.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1551423c-a01c-411d-88d4-1ecb579111f8/bin/uautomizer-tBqnrhUYjU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1551423c-a01c-411d-88d4-1ecb579111f8/bin/uautomizer-tBqnrhUYjU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1551423c-a01c-411d-88d4-1ecb579111f8/bin/uautomizer-tBqnrhUYjU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1551423c-a01c-411d-88d4-1ecb579111f8/bin/uautomizer-tBqnrhUYjU/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product63.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1551423c-a01c-411d-88d4-1ecb579111f8/bin/uautomizer-tBqnrhUYjU/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1551423c-a01c-411d-88d4-1ecb579111f8/bin/uautomizer-tBqnrhUYjU --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 7c7779f94f1738e754b88f9a8a8e36de7065a4e94578f4135106bd0ff9ddb13d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-02 22:37:05,295 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-02 22:37:05,299 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-02 22:37:05,369 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-02 22:37:05,370 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-02 22:37:05,376 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-02 22:37:05,378 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-02 22:37:05,383 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-02 22:37:05,387 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-02 22:37:05,394 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-02 22:37:05,395 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-02 22:37:05,398 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-02 22:37:05,398 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-02 22:37:05,402 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-02 22:37:05,405 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-02 22:37:05,410 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-02 22:37:05,413 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-02 22:37:05,415 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-02 22:37:05,418 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-02 22:37:05,423 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-02 22:37:05,425 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-02 22:37:05,427 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-02 22:37:05,429 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-02 22:37:05,431 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-02 22:37:05,435 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-02 22:37:05,436 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-02 22:37:05,437 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-02 22:37:05,438 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-02 22:37:05,439 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-02 22:37:05,441 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-02 22:37:05,442 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-02 22:37:05,443 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-02 22:37:05,444 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-02 22:37:05,446 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-02 22:37:05,447 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-02 22:37:05,448 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-02 22:37:05,449 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-02 22:37:05,449 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-02 22:37:05,450 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-02 22:37:05,451 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-02 22:37:05,452 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-02 22:37:05,454 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1551423c-a01c-411d-88d4-1ecb579111f8/bin/uautomizer-tBqnrhUYjU/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-02 22:37:05,483 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-02 22:37:05,484 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-02 22:37:05,484 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-02 22:37:05,485 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-02 22:37:05,486 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-02 22:37:05,486 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-02 22:37:05,487 INFO L138 SettingsManager]: * Use SBE=true [2021-11-02 22:37:05,487 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-02 22:37:05,487 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-02 22:37:05,488 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-02 22:37:05,492 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-02 22:37:05,492 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-02 22:37:05,492 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-02 22:37:05,493 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-02 22:37:05,493 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-02 22:37:05,493 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-02 22:37:05,493 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-02 22:37:05,494 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-02 22:37:05,494 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-02 22:37:05,494 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-02 22:37:05,495 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-02 22:37:05,495 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-02 22:37:05,495 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-02 22:37:05,496 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-02 22:37:05,496 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-02 22:37:05,496 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-02 22:37:05,498 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-02 22:37:05,499 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-02 22:37:05,499 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-02 22:37:05,500 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-02 22:37:05,500 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-02 22:37:05,501 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-02 22:37:05,502 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-02 22:37:05,503 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_1551423c-a01c-411d-88d4-1ecb579111f8/bin/uautomizer-tBqnrhUYjU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1551423c-a01c-411d-88d4-1ecb579111f8/bin/uautomizer-tBqnrhUYjU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c7779f94f1738e754b88f9a8a8e36de7065a4e94578f4135106bd0ff9ddb13d [2021-11-02 22:37:05,840 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-02 22:37:05,919 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-02 22:37:05,922 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-02 22:37:05,924 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-02 22:37:05,926 INFO L275 PluginConnector]: CDTParser initialized [2021-11-02 22:37:05,927 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1551423c-a01c-411d-88d4-1ecb579111f8/bin/uautomizer-tBqnrhUYjU/../../sv-benchmarks/c/product-lines/minepump_spec4_product63.cil.c [2021-11-02 22:37:06,010 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1551423c-a01c-411d-88d4-1ecb579111f8/bin/uautomizer-tBqnrhUYjU/data/a3812de4a/b280689b4e124aeda510cf649dacde1f/FLAG408861b23 [2021-11-02 22:37:06,672 INFO L306 CDTParser]: Found 1 translation units. [2021-11-02 22:37:06,673 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1551423c-a01c-411d-88d4-1ecb579111f8/sv-benchmarks/c/product-lines/minepump_spec4_product63.cil.c [2021-11-02 22:37:06,695 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1551423c-a01c-411d-88d4-1ecb579111f8/bin/uautomizer-tBqnrhUYjU/data/a3812de4a/b280689b4e124aeda510cf649dacde1f/FLAG408861b23 [2021-11-02 22:37:06,938 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1551423c-a01c-411d-88d4-1ecb579111f8/bin/uautomizer-tBqnrhUYjU/data/a3812de4a/b280689b4e124aeda510cf649dacde1f [2021-11-02 22:37:06,941 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-02 22:37:06,943 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-02 22:37:06,949 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-02 22:37:06,949 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-02 22:37:06,954 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-02 22:37:06,955 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:37:06" (1/1) ... [2021-11-02 22:37:06,956 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52e42482 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:37:06, skipping insertion in model container [2021-11-02 22:37:06,957 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:37:06" (1/1) ... [2021-11-02 22:37:06,966 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-02 22:37:07,016 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-02 22:37:07,323 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_1551423c-a01c-411d-88d4-1ecb579111f8/sv-benchmarks/c/product-lines/minepump_spec4_product63.cil.c[15018,15031] [2021-11-02 22:37:07,352 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 22:37:07,366 INFO L203 MainTranslator]: Completed pre-run [2021-11-02 22:37:07,444 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_1551423c-a01c-411d-88d4-1ecb579111f8/sv-benchmarks/c/product-lines/minepump_spec4_product63.cil.c[15018,15031] [2021-11-02 22:37:07,462 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 22:37:07,487 INFO L208 MainTranslator]: Completed translation [2021-11-02 22:37:07,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:37:07 WrapperNode [2021-11-02 22:37:07,488 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-02 22:37:07,490 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-02 22:37:07,490 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-02 22:37:07,490 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-02 22:37:07,500 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:37:07" (1/1) ... [2021-11-02 22:37:07,533 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:37:07" (1/1) ... [2021-11-02 22:37:07,633 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-02 22:37:07,634 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-02 22:37:07,635 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-02 22:37:07,635 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-02 22:37:07,646 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:37:07" (1/1) ... [2021-11-02 22:37:07,646 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:37:07" (1/1) ... [2021-11-02 22:37:07,652 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:37:07" (1/1) ... [2021-11-02 22:37:07,653 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:37:07" (1/1) ... [2021-11-02 22:37:07,681 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:37:07" (1/1) ... [2021-11-02 22:37:07,696 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:37:07" (1/1) ... [2021-11-02 22:37:07,701 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:37:07" (1/1) ... [2021-11-02 22:37:07,710 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-02 22:37:07,734 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-02 22:37:07,734 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-02 22:37:07,734 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-02 22:37:07,735 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:37:07" (1/1) ... [2021-11-02 22:37:07,753 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:37:07,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1551423c-a01c-411d-88d4-1ecb579111f8/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:37:07,794 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1551423c-a01c-411d-88d4-1ecb579111f8/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:37:07,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1551423c-a01c-411d-88d4-1ecb579111f8/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-02 22:37:07,867 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-02 22:37:07,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-02 22:37:07,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-02 22:37:07,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-02 22:37:09,230 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-02 22:37:09,230 INFO L299 CfgBuilder]: Removed 352 assume(true) statements. [2021-11-02 22:37:09,233 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:37:09 BoogieIcfgContainer [2021-11-02 22:37:09,234 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-02 22:37:09,235 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-02 22:37:09,235 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-02 22:37:09,240 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-02 22:37:09,241 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-02 22:37:09,241 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.11 10:37:06" (1/3) ... [2021-11-02 22:37:09,243 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5637b3ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 10:37:09, skipping insertion in model container [2021-11-02 22:37:09,243 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-02 22:37:09,243 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:37:07" (2/3) ... [2021-11-02 22:37:09,244 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5637b3ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 10:37:09, skipping insertion in model container [2021-11-02 22:37:09,244 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-02 22:37:09,244 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:37:09" (3/3) ... [2021-11-02 22:37:09,246 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product63.cil.c [2021-11-02 22:37:09,302 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-02 22:37:09,302 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-02 22:37:09,302 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-02 22:37:09,302 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-02 22:37:09,303 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-02 22:37:09,303 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-02 22:37:09,303 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-02 22:37:09,303 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-02 22:37:09,331 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 224 states, 223 states have (on average 1.506726457399103) internal successors, (336), 223 states have internal predecessors, (336), 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) [2021-11-02 22:37:09,376 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 147 [2021-11-02 22:37:09,376 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 22:37:09,376 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 22:37:09,385 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-02 22:37:09,385 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:37:09,386 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-02 22:37:09,387 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 224 states, 223 states have (on average 1.506726457399103) internal successors, (336), 223 states have internal predecessors, (336), 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) [2021-11-02 22:37:09,403 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 147 [2021-11-02 22:37:09,403 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 22:37:09,404 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 22:37:09,405 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-02 22:37:09,406 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:37:09,412 INFO L791 eck$LassoCheckResult]: Stem: 215#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~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(13);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string49.base, #t~string49.offset, 1);call write~init~int(77, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(101, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(116, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(104, #t~string49.base, 4 + #t~string49.offset, 1);call write~init~int(58, #t~string49.base, 5 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 6 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string51.base, #t~string51.offset, 1);call write~init~int(82, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(73, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(84, #t~string51.base, 3 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 4 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(75, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string55.base, #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 1 + #t~string55.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(13);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(110, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 3 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string68.base, #t~string68.offset, 1);call write~init~int(80, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(117, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(109, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(112, #t~string68.base, 4 + #t~string68.offset, 1);call write~init~int(58, #t~string68.base, 5 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 6 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(110, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(102, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(102, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 3 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(32, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string76.base, #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 1 + #t~string76.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 153#L-1true havoc main_#res;havoc main_#t~ret42, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 120#L542true havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 110#L550true main_#t~ret42 := valid_product_#res;main_~tmp~3 := main_#t~ret42;havoc main_#t~ret42; 91#L506true assume 0 != main_~tmp~3; 171#L479true havoc test_#t~nondet79, test_#t~nondet80, test_#t~nondet81, test_#t~nondet82, test_~splverifierCounter~0, test_~tmp~11, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~11;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 169#L566-1true [2021-11-02 22:37:09,413 INFO L793 eck$LassoCheckResult]: Loop: 169#L566-1true assume !false; 17#L970true assume test_~splverifierCounter~0 < 4; 180#L971true test_~tmp~11 := test_#t~nondet79;havoc test_#t~nondet79; 92#L979true assume !(0 != test_~tmp~11); 90#L979-1true test_~tmp___0~3 := test_#t~nondet80;havoc test_#t~nondet80; 147#L989true assume !(0 != test_~tmp___0~3); 5#L989-1true test_~tmp___2~0 := test_#t~nondet81;havoc test_#t~nondet81; 212#L999true assume 0 != test_~tmp___2~0; 176#L1005-1true assume !(0 != ~pumpRunning~0); 156#L711true assume !(0 != ~systemActive~0); 71#L718true havoc __utac_acc__Specification4_spec__1_#t~ret44, __utac_acc__Specification4_spec__1_#t~ret45, __utac_acc__Specification4_spec__1_~tmp~4, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~4;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 23#L664true __utac_acc__Specification4_spec__1_#t~ret44 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~4 := __utac_acc__Specification4_spec__1_#t~ret44;havoc __utac_acc__Specification4_spec__1_#t~ret44; 89#L566true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~4); 169#L566-1true [2021-11-02 22:37:09,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:37:09,420 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-11-02 22:37:09,432 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:37:09,433 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246908062] [2021-11-02 22:37:09,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:37:09,434 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:37:09,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:37:09,930 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:37:10,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:37:10,171 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:37:10,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:37:10,176 INFO L85 PathProgramCache]: Analyzing trace with hash -1666538037, now seen corresponding path program 1 times [2021-11-02 22:37:10,176 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:37:10,176 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985474114] [2021-11-02 22:37:10,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:37:10,177 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:37:10,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:37:10,196 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:37:10,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:37:10,212 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:37:10,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:37:10,220 INFO L85 PathProgramCache]: Analyzing trace with hash 47740901, now seen corresponding path program 1 times [2021-11-02 22:37:10,220 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:37:10,221 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866603710] [2021-11-02 22:37:10,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:37:10,221 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:37:10,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:37:10,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:37:10,410 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:37:10,413 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866603710] [2021-11-02 22:37:10,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866603710] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:37:10,420 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:37:10,420 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-02 22:37:10,421 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103662635] [2021-11-02 22:37:10,562 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:37:10,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-02 22:37:10,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-02 22:37:10,584 INFO L87 Difference]: Start difference. First operand has 224 states, 223 states have (on average 1.506726457399103) internal successors, (336), 223 states have internal predecessors, (336), 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) [2021-11-02 22:37:11,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:37:11,043 INFO L93 Difference]: Finished difference Result 492 states and 714 transitions. [2021-11-02 22:37:11,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-02 22:37:11,046 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 492 states and 714 transitions. [2021-11-02 22:37:11,071 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 321 [2021-11-02 22:37:11,091 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 492 states to 471 states and 693 transitions. [2021-11-02 22:37:11,093 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 471 [2021-11-02 22:37:11,096 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 471 [2021-11-02 22:37:11,097 INFO L73 IsDeterministic]: Start isDeterministic. Operand 471 states and 693 transitions. [2021-11-02 22:37:11,108 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-02 22:37:11,109 INFO L681 BuchiCegarLoop]: Abstraction has 471 states and 693 transitions. [2021-11-02 22:37:11,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states and 693 transitions. [2021-11-02 22:37:11,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 258. [2021-11-02 22:37:11,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 258 states have (on average 1.4651162790697674) internal successors, (378), 257 states have internal predecessors, (378), 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) [2021-11-02 22:37:11,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 378 transitions. [2021-11-02 22:37:11,197 INFO L704 BuchiCegarLoop]: Abstraction has 258 states and 378 transitions. [2021-11-02 22:37:11,197 INFO L587 BuchiCegarLoop]: Abstraction has 258 states and 378 transitions. [2021-11-02 22:37:11,197 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-02 22:37:11,198 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 258 states and 378 transitions. [2021-11-02 22:37:11,201 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 176 [2021-11-02 22:37:11,201 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 22:37:11,201 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 22:37:11,202 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-02 22:37:11,202 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:37:11,203 INFO L791 eck$LassoCheckResult]: Stem: 951#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~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(13);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string49.base, #t~string49.offset, 1);call write~init~int(77, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(101, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(116, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(104, #t~string49.base, 4 + #t~string49.offset, 1);call write~init~int(58, #t~string49.base, 5 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 6 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string51.base, #t~string51.offset, 1);call write~init~int(82, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(73, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(84, #t~string51.base, 3 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 4 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(75, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string55.base, #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 1 + #t~string55.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(13);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(110, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 3 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string68.base, #t~string68.offset, 1);call write~init~int(80, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(117, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(109, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(112, #t~string68.base, 4 + #t~string68.offset, 1);call write~init~int(58, #t~string68.base, 5 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 6 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(110, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(102, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(102, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 3 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(32, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string76.base, #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 1 + #t~string76.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 927#L-1 havoc main_#res;havoc main_#t~ret42, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 901#L542 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 892#L550 main_#t~ret42 := valid_product_#res;main_~tmp~3 := main_#t~ret42;havoc main_#t~ret42; 869#L506 assume 0 != main_~tmp~3; 870#L479 havoc test_#t~nondet79, test_#t~nondet80, test_#t~nondet81, test_#t~nondet82, test_~splverifierCounter~0, test_~tmp~11, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~11;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 778#L566-1 [2021-11-02 22:37:11,203 INFO L793 eck$LassoCheckResult]: Loop: 778#L566-1 assume !false; 762#L970 assume test_~splverifierCounter~0 < 4; 763#L971 test_~tmp~11 := test_#t~nondet79;havoc test_#t~nondet79; 871#L979 assume !(0 != test_~tmp~11); 772#L979-1 test_~tmp___0~3 := test_#t~nondet80;havoc test_#t~nondet80; 868#L989 assume !(0 != test_~tmp___0~3); 738#L989-1 test_~tmp___2~0 := test_#t~nondet81;havoc test_#t~nondet81; 739#L999 assume 0 != test_~tmp___2~0; 802#L1005-1 assume !(0 != ~pumpRunning~0); 931#L711 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret58, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 898#L795 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret57, processEnvironment__wrappee__methaneQuery_~tmp~6;havoc processEnvironment__wrappee__methaneQuery_~tmp~6; 900#L769-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret56, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 895#L743-3 assume !(0 == ~pumpRunning~0); 737#L718 havoc __utac_acc__Specification4_spec__1_#t~ret44, __utac_acc__Specification4_spec__1_#t~ret45, __utac_acc__Specification4_spec__1_~tmp~4, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~4;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 775#L664 __utac_acc__Specification4_spec__1_#t~ret44 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~4 := __utac_acc__Specification4_spec__1_#t~ret44;havoc __utac_acc__Specification4_spec__1_#t~ret44; 776#L566 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~4); 778#L566-1 [2021-11-02 22:37:11,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:37:11,204 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-11-02 22:37:11,204 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:37:11,205 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981339117] [2021-11-02 22:37:11,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:37:11,205 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:37:11,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:37:11,268 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:37:11,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:37:11,346 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:37:11,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:37:11,347 INFO L85 PathProgramCache]: Analyzing trace with hash -1439331007, now seen corresponding path program 1 times [2021-11-02 22:37:11,347 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:37:11,348 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356670204] [2021-11-02 22:37:11,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:37:11,349 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:37:11,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:37:11,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:37:11,370 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:37:11,370 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356670204] [2021-11-02 22:37:11,370 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356670204] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:37:11,371 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:37:11,371 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 22:37:11,371 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341364252] [2021-11-02 22:37:11,372 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-02 22:37:11,372 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:37:11,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 22:37:11,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:37:11,374 INFO L87 Difference]: Start difference. First operand 258 states and 378 transitions. cyclomatic complexity: 123 Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:37:11,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:37:11,507 INFO L93 Difference]: Finished difference Result 252 states and 346 transitions. [2021-11-02 22:37:11,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 22:37:11,509 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 252 states and 346 transitions. [2021-11-02 22:37:11,512 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 176 [2021-11-02 22:37:11,515 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 252 states to 252 states and 346 transitions. [2021-11-02 22:37:11,515 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 252 [2021-11-02 22:37:11,516 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 252 [2021-11-02 22:37:11,516 INFO L73 IsDeterministic]: Start isDeterministic. Operand 252 states and 346 transitions. [2021-11-02 22:37:11,517 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-02 22:37:11,517 INFO L681 BuchiCegarLoop]: Abstraction has 252 states and 346 transitions. [2021-11-02 22:37:11,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states and 346 transitions. [2021-11-02 22:37:11,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 252. [2021-11-02 22:37:11,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 252 states have (on average 1.373015873015873) internal successors, (346), 251 states have internal predecessors, (346), 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) [2021-11-02 22:37:11,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 346 transitions. [2021-11-02 22:37:11,529 INFO L704 BuchiCegarLoop]: Abstraction has 252 states and 346 transitions. [2021-11-02 22:37:11,529 INFO L587 BuchiCegarLoop]: Abstraction has 252 states and 346 transitions. [2021-11-02 22:37:11,529 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-02 22:37:11,530 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 252 states and 346 transitions. [2021-11-02 22:37:11,532 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 176 [2021-11-02 22:37:11,532 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 22:37:11,532 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 22:37:11,533 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-02 22:37:11,533 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:37:11,534 INFO L791 eck$LassoCheckResult]: Stem: 1430#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~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(13);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string49.base, #t~string49.offset, 1);call write~init~int(77, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(101, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(116, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(104, #t~string49.base, 4 + #t~string49.offset, 1);call write~init~int(58, #t~string49.base, 5 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 6 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string51.base, #t~string51.offset, 1);call write~init~int(82, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(73, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(84, #t~string51.base, 3 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 4 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(75, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string55.base, #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 1 + #t~string55.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(13);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(110, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 3 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string68.base, #t~string68.offset, 1);call write~init~int(80, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(117, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(109, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(112, #t~string68.base, 4 + #t~string68.offset, 1);call write~init~int(58, #t~string68.base, 5 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 6 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(110, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(102, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(102, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 3 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(32, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string76.base, #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 1 + #t~string76.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 1333#L-1 havoc main_#res;havoc main_#t~ret42, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 1263#L542 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 1264#L550 main_#t~ret42 := valid_product_#res;main_~tmp~3 := main_#t~ret42;havoc main_#t~ret42; 1427#L506 assume 0 != main_~tmp~3; 1381#L479 havoc test_#t~nondet79, test_#t~nondet80, test_#t~nondet81, test_#t~nondet82, test_~splverifierCounter~0, test_~tmp~11, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~11;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1332#L566-1 [2021-11-02 22:37:11,534 INFO L793 eck$LassoCheckResult]: Loop: 1332#L566-1 assume !false; 1293#L970 assume test_~splverifierCounter~0 < 4; 1294#L971 test_~tmp~11 := test_#t~nondet79;havoc test_#t~nondet79; 1389#L979 assume !(0 != test_~tmp~11); 1313#L979-1 test_~tmp___0~3 := test_#t~nondet80;havoc test_#t~nondet80; 1317#L989 assume !(0 != test_~tmp___0~3); 1257#L989-1 test_~tmp___2~0 := test_#t~nondet81;havoc test_#t~nondet81; 1258#L999 assume 0 != test_~tmp___2~0; 1363#L1005-1 assume !(0 != ~pumpRunning~0); 1337#L711 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret58, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 1259#L795 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret57, processEnvironment__wrappee__methaneQuery_~tmp~6;havoc processEnvironment__wrappee__methaneQuery_~tmp~6; 1260#L769-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret56, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 1250#L743-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret77, isHighWaterLevel_~retValue_acc~12, isHighWaterLevel_~tmp~9, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~12;havoc isHighWaterLevel_~tmp~9;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 1251#L672-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 1367#L677-3 isHighWaterLevel_#t~ret77 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~9 := isHighWaterLevel_#t~ret77;havoc isHighWaterLevel_#t~ret77; 1386#L914-9 assume 0 != isHighWaterLevel_~tmp~9;isHighWaterLevel_~tmp___0~1 := 0; 1269#L914-11 isHighWaterLevel_~retValue_acc~12 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~12; 1270#L920-3 processEnvironment__wrappee__highWaterSensor_#t~ret56 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~5 := processEnvironment__wrappee__highWaterSensor_#t~ret56;havoc processEnvironment__wrappee__highWaterSensor_#t~ret56; 1392#L747-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5); 1255#L718 havoc __utac_acc__Specification4_spec__1_#t~ret44, __utac_acc__Specification4_spec__1_#t~ret45, __utac_acc__Specification4_spec__1_~tmp~4, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~4;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 1329#L664 __utac_acc__Specification4_spec__1_#t~ret44 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~4 := __utac_acc__Specification4_spec__1_#t~ret44;havoc __utac_acc__Specification4_spec__1_#t~ret44; 1330#L566 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~4); 1332#L566-1 [2021-11-02 22:37:11,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:37:11,535 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2021-11-02 22:37:11,535 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:37:11,535 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49549216] [2021-11-02 22:37:11,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:37:11,536 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:37:11,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:37:11,584 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:37:11,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:37:11,644 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:37:11,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:37:11,645 INFO L85 PathProgramCache]: Analyzing trace with hash 1579572237, now seen corresponding path program 1 times [2021-11-02 22:37:11,645 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:37:11,645 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84624880] [2021-11-02 22:37:11,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:37:11,646 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:37:11,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:37:11,653 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:37:11,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:37:11,663 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:37:11,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:37:11,664 INFO L85 PathProgramCache]: Analyzing trace with hash -1462089933, now seen corresponding path program 1 times [2021-11-02 22:37:11,664 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:37:11,664 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914117651] [2021-11-02 22:37:11,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:37:11,665 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:37:11,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:37:11,735 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:37:11,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:37:11,796 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:38:31,321 WARN L207 SmtUtils]: Spent 1.32 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-11-02 22:39:55,048 WARN L207 SmtUtils]: Spent 40.12 s on a formula simplification that was a NOOP. DAG size: 433 [2021-11-02 22:39:55,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 02.11 10:39:55 BoogieIcfgContainer [2021-11-02 22:39:55,322 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-02 22:39:55,323 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-02 22:39:55,323 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-02 22:39:55,324 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-02 22:39:55,324 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:37:09" (3/4) ... [2021-11-02 22:39:55,327 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-11-02 22:39:55,409 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1551423c-a01c-411d-88d4-1ecb579111f8/bin/uautomizer-tBqnrhUYjU/witness.graphml [2021-11-02 22:39:55,410 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-02 22:39:55,411 INFO L168 Benchmark]: Toolchain (without parser) took 168467.09 ms. Allocated memory was 100.7 MB in the beginning and 132.1 MB in the end (delta: 31.5 MB). Free memory was 62.4 MB in the beginning and 70.0 MB in the end (delta: -7.7 MB). Peak memory consumption was 25.6 MB. Max. memory is 16.1 GB. [2021-11-02 22:39:55,412 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 100.7 MB. Free memory was 80.2 MB in the beginning and 80.1 MB in the end (delta: 62.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-02 22:39:55,413 INFO L168 Benchmark]: CACSL2BoogieTranslator took 540.14 ms. Allocated memory is still 100.7 MB. Free memory was 62.2 MB in the beginning and 71.8 MB in the end (delta: -9.6 MB). Peak memory consumption was 15.1 MB. Max. memory is 16.1 GB. [2021-11-02 22:39:55,414 INFO L168 Benchmark]: Boogie Procedure Inliner took 143.96 ms. Allocated memory is still 100.7 MB. Free memory was 71.8 MB in the beginning and 66.2 MB in the end (delta: 5.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-11-02 22:39:55,415 INFO L168 Benchmark]: Boogie Preprocessor took 97.42 ms. Allocated memory is still 100.7 MB. Free memory was 66.2 MB in the beginning and 62.3 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-11-02 22:39:55,416 INFO L168 Benchmark]: RCFGBuilder took 1500.35 ms. Allocated memory is still 100.7 MB. Free memory was 62.3 MB in the beginning and 52.8 MB in the end (delta: 9.5 MB). Peak memory consumption was 36.1 MB. Max. memory is 16.1 GB. [2021-11-02 22:39:55,417 INFO L168 Benchmark]: BuchiAutomizer took 166087.51 ms. Allocated memory was 100.7 MB in the beginning and 132.1 MB in the end (delta: 31.5 MB). Free memory was 52.4 MB in the beginning and 72.1 MB in the end (delta: -19.7 MB). Peak memory consumption was 58.4 MB. Max. memory is 16.1 GB. [2021-11-02 22:39:55,418 INFO L168 Benchmark]: Witness Printer took 86.83 ms. Allocated memory is still 132.1 MB. Free memory was 72.1 MB in the beginning and 70.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-02 22:39:55,424 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 100.7 MB. Free memory was 80.2 MB in the beginning and 80.1 MB in the end (delta: 62.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 540.14 ms. Allocated memory is still 100.7 MB. Free memory was 62.2 MB in the beginning and 71.8 MB in the end (delta: -9.6 MB). Peak memory consumption was 15.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 143.96 ms. Allocated memory is still 100.7 MB. Free memory was 71.8 MB in the beginning and 66.2 MB in the end (delta: 5.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 97.42 ms. Allocated memory is still 100.7 MB. Free memory was 66.2 MB in the beginning and 62.3 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1500.35 ms. Allocated memory is still 100.7 MB. Free memory was 62.3 MB in the beginning and 52.8 MB in the end (delta: 9.5 MB). Peak memory consumption was 36.1 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 166087.51 ms. Allocated memory was 100.7 MB in the beginning and 132.1 MB in the end (delta: 31.5 MB). Free memory was 52.4 MB in the beginning and 72.1 MB in the end (delta: -19.7 MB). Peak memory consumption was 58.4 MB. Max. memory is 16.1 GB. * Witness Printer took 86.83 ms. Allocated memory is still 132.1 MB. Free memory was 72.1 MB in the beginning and 70.0 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 6 locations. The remainder module has 252 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 166.0s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 165.0s. Construction of modules took 0.2s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 213 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 258 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 550 SDtfs, 1444 SDslu, 1274 SDs, 0 SdLazy, 85 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 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: 969]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=15384} State at position 1 is {NULL=0, NULL=0, NULL=15392, NULL=15384, NULL=15387, methaneLevelCritical=0, NULL=0, NULL=15402, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@39a0dafe=0, tmp___1=0, NULL=15407, NULL=0, NULL=15394, NULL=15403, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6b914361=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@68071d5f=0, NULL=0, waterLevel=1, NULL=0, NULL=0, NULL=0, \result=1, head=0, pumpRunning=0, retValue_acc=1, tmp=1, NULL=15410, NULL=0, NULL=0, NULL=0, NULL=0, \result=1, NULL=0, retValue_acc=0, tmp=1, NULL=0, NULL=0, tmp___0=0, retValue_acc=1, NULL=15389, NULL=15406, tmp=1, NULL=15397, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@241a30f0=0, head=0, NULL=0, NULL=0, NULL=15401, tmp=0, NULL=0, NULL=0, NULL=15398, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@310a0ebd=0, NULL=0, NULL=0, retValue_acc=0, NULL=15404, NULL=15390, NULL=15412, tmp___0=0, NULL=0, NULL=0, tmp___0=0, NULL=15405, NULL=15400, NULL=15386, tmp=0, NULL=15391, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@416cf689=0, NULL=0, NULL=0, NULL=0, systemActive=1, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@50f35109=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@d8bea18=55, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@486e3152=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6158125e=0, \result=0, NULL=15385, NULL=0, NULL=0, NULL=15408, NULL=15396, \result=0, NULL=15409, NULL=0, NULL=15393, retValue_acc=1, NULL=15395, tmp___2=55, tmp=0, splverifierCounter=0, NULL=0, NULL=15388, NULL=15411, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3e3b22bb=0, NULL=15399} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L416] int cleanupTimeShifts = 4; [L589] int waterLevel = 1; [L590] int methaneLevelCritical = 0; [L704] int pumpRunning = 0; [L705] int systemActive = 1; [L497] int retValue_acc ; [L498] int tmp ; [L546] int retValue_acc ; [L549] retValue_acc = 1 [L550] return (retValue_acc); [L504] tmp = valid_product() [L506] COND TRUE \read(tmp) [L960] int splverifierCounter ; [L961] int tmp ; [L962] int tmp___0 ; [L963] int tmp___1 ; [L964] int tmp___2 ; [L967] splverifierCounter = 0 Loop: [L969] COND TRUE 1 [L971] COND TRUE splverifierCounter < 4 [L977] tmp = __VERIFIER_nondet_int() [L979] COND FALSE !(\read(tmp)) [L987] tmp___0 = __VERIFIER_nondet_int() [L989] COND FALSE !(\read(tmp___0)) [L997] tmp___2 = __VERIFIER_nondet_int() [L999] COND TRUE \read(tmp___2) [L711] COND FALSE !(\read(pumpRunning)) [L718] COND TRUE \read(systemActive) [L792] int tmp ; [L795] COND FALSE !(\read(pumpRunning)) [L766] int tmp ; [L769] COND FALSE !(\read(pumpRunning)) [L740] int tmp ; [L743] COND TRUE ! pumpRunning [L906] int retValue_acc ; [L907] int tmp ; [L908] int tmp___0 ; [L669] int retValue_acc ; [L672] COND TRUE waterLevel < 2 [L673] retValue_acc = 1 [L674] return (retValue_acc); [L912] tmp = isHighWaterSensorDry() [L914] COND TRUE \read(tmp) [L915] tmp___0 = 0 [L919] retValue_acc = tmp___0 [L920] return (retValue_acc); [L745] tmp = isHighWaterLevel() [L747] COND FALSE !(\read(tmp)) [L559] int tmp ; [L560] int tmp___0 ; [L660] int retValue_acc ; [L663] retValue_acc = waterLevel [L664] return (retValue_acc); [L564] tmp = getWaterLevel() [L566] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-11-02 22:39:55,549 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1551423c-a01c-411d-88d4-1ecb579111f8/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)