./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product23.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_b47befdc-dca3-4012-97ba-3b90c4b0bccf/bin/uautomizer-tBqnrhUYjU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b47befdc-dca3-4012-97ba-3b90c4b0bccf/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_b47befdc-dca3-4012-97ba-3b90c4b0bccf/bin/uautomizer-tBqnrhUYjU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b47befdc-dca3-4012-97ba-3b90c4b0bccf/bin/uautomizer-tBqnrhUYjU/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product23.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b47befdc-dca3-4012-97ba-3b90c4b0bccf/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_b47befdc-dca3-4012-97ba-3b90c4b0bccf/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 df939eacd07971dbe984826c04d07f64706b0716dba249ed14f3095e44967ff6 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-02 22:49:38,320 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-02 22:49:38,323 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-02 22:49:38,359 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-02 22:49:38,361 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-02 22:49:38,367 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-02 22:49:38,372 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-02 22:49:38,377 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-02 22:49:38,380 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-02 22:49:38,388 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-02 22:49:38,389 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-02 22:49:38,392 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-02 22:49:38,392 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-02 22:49:38,396 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-02 22:49:38,399 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-02 22:49:38,401 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-02 22:49:38,404 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-02 22:49:38,405 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-02 22:49:38,411 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-02 22:49:38,422 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-02 22:49:38,424 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-02 22:49:38,426 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-02 22:49:38,430 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-02 22:49:38,432 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-02 22:49:38,444 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-02 22:49:38,445 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-02 22:49:38,445 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-02 22:49:38,448 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-02 22:49:38,449 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-02 22:49:38,451 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-02 22:49:38,452 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-02 22:49:38,453 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-02 22:49:38,456 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-02 22:49:38,458 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-02 22:49:38,460 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-02 22:49:38,461 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-02 22:49:38,462 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-02 22:49:38,462 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-02 22:49:38,462 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-02 22:49:38,464 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-02 22:49:38,465 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-02 22:49:38,466 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b47befdc-dca3-4012-97ba-3b90c4b0bccf/bin/uautomizer-tBqnrhUYjU/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-02 22:49:38,517 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-02 22:49:38,517 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-02 22:49:38,518 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-02 22:49:38,518 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-02 22:49:38,520 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-02 22:49:38,520 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-02 22:49:38,520 INFO L138 SettingsManager]: * Use SBE=true [2021-11-02 22:49:38,521 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-02 22:49:38,521 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-02 22:49:38,521 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-02 22:49:38,521 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-02 22:49:38,522 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-02 22:49:38,522 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-02 22:49:38,522 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-02 22:49:38,522 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-02 22:49:38,523 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-02 22:49:38,523 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-02 22:49:38,523 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-02 22:49:38,523 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-02 22:49:38,524 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-02 22:49:38,524 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-02 22:49:38,524 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-02 22:49:38,524 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-02 22:49:38,525 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-02 22:49:38,525 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-02 22:49:38,525 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-02 22:49:38,525 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-02 22:49:38,526 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-02 22:49:38,526 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-02 22:49:38,526 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-02 22:49:38,527 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-02 22:49:38,527 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-02 22:49:38,528 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-02 22:49:38,528 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_b47befdc-dca3-4012-97ba-3b90c4b0bccf/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b47befdc-dca3-4012-97ba-3b90c4b0bccf/bin/uautomizer-tBqnrhUYjU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> df939eacd07971dbe984826c04d07f64706b0716dba249ed14f3095e44967ff6 [2021-11-02 22:49:38,967 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-02 22:49:39,014 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-02 22:49:39,017 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-02 22:49:39,020 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-02 22:49:39,021 INFO L275 PluginConnector]: CDTParser initialized [2021-11-02 22:49:39,022 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b47befdc-dca3-4012-97ba-3b90c4b0bccf/bin/uautomizer-tBqnrhUYjU/../../sv-benchmarks/c/product-lines/minepump_spec2_product23.cil.c [2021-11-02 22:49:39,130 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b47befdc-dca3-4012-97ba-3b90c4b0bccf/bin/uautomizer-tBqnrhUYjU/data/4a5aed1be/5807c11d5b154f519f21d44a4cb9980e/FLAG66b117c17 [2021-11-02 22:49:39,767 INFO L306 CDTParser]: Found 1 translation units. [2021-11-02 22:49:39,767 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b47befdc-dca3-4012-97ba-3b90c4b0bccf/sv-benchmarks/c/product-lines/minepump_spec2_product23.cil.c [2021-11-02 22:49:39,785 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b47befdc-dca3-4012-97ba-3b90c4b0bccf/bin/uautomizer-tBqnrhUYjU/data/4a5aed1be/5807c11d5b154f519f21d44a4cb9980e/FLAG66b117c17 [2021-11-02 22:49:40,063 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b47befdc-dca3-4012-97ba-3b90c4b0bccf/bin/uautomizer-tBqnrhUYjU/data/4a5aed1be/5807c11d5b154f519f21d44a4cb9980e [2021-11-02 22:49:40,066 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-02 22:49:40,068 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-02 22:49:40,070 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-02 22:49:40,070 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-02 22:49:40,075 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-02 22:49:40,076 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:49:40" (1/1) ... [2021-11-02 22:49:40,078 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70144928 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:49:40, skipping insertion in model container [2021-11-02 22:49:40,078 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:49:40" (1/1) ... [2021-11-02 22:49:40,088 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-02 22:49:40,154 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-02 22:49:40,579 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_b47befdc-dca3-4012-97ba-3b90c4b0bccf/sv-benchmarks/c/product-lines/minepump_spec2_product23.cil.c[13383,13396] [2021-11-02 22:49:40,627 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 22:49:40,651 INFO L203 MainTranslator]: Completed pre-run [2021-11-02 22:49:40,758 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_b47befdc-dca3-4012-97ba-3b90c4b0bccf/sv-benchmarks/c/product-lines/minepump_spec2_product23.cil.c[13383,13396] [2021-11-02 22:49:40,779 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 22:49:40,818 INFO L208 MainTranslator]: Completed translation [2021-11-02 22:49:40,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:49:40 WrapperNode [2021-11-02 22:49:40,819 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-02 22:49:40,820 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-02 22:49:40,821 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-02 22:49:40,821 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-02 22:49:40,842 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:49:40" (1/1) ... [2021-11-02 22:49:40,884 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:49:40" (1/1) ... [2021-11-02 22:49:40,961 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-02 22:49:40,962 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-02 22:49:40,963 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-02 22:49:40,963 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-02 22:49:40,981 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:49:40" (1/1) ... [2021-11-02 22:49:40,982 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:49:40" (1/1) ... [2021-11-02 22:49:41,000 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:49:40" (1/1) ... [2021-11-02 22:49:41,000 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:49:40" (1/1) ... [2021-11-02 22:49:41,033 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:49:40" (1/1) ... [2021-11-02 22:49:41,043 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:49:40" (1/1) ... [2021-11-02 22:49:41,064 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:49:40" (1/1) ... [2021-11-02 22:49:41,070 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-02 22:49:41,071 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-02 22:49:41,071 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-02 22:49:41,071 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-02 22:49:41,080 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:49:40" (1/1) ... [2021-11-02 22:49:41,093 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:49:41,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b47befdc-dca3-4012-97ba-3b90c4b0bccf/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:49:41,124 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b47befdc-dca3-4012-97ba-3b90c4b0bccf/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:49:41,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b47befdc-dca3-4012-97ba-3b90c4b0bccf/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-02 22:49:41,195 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-02 22:49:41,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-02 22:49:41,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-02 22:49:41,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-02 22:49:42,446 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-02 22:49:42,446 INFO L299 CfgBuilder]: Removed 162 assume(true) statements. [2021-11-02 22:49:42,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:49:42 BoogieIcfgContainer [2021-11-02 22:49:42,450 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-02 22:49:42,455 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-02 22:49:42,455 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-02 22:49:42,462 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-02 22:49:42,463 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-02 22:49:42,464 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.11 10:49:40" (1/3) ... [2021-11-02 22:49:42,466 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@61680528 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 10:49:42, skipping insertion in model container [2021-11-02 22:49:42,467 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-02 22:49:42,467 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:49:40" (2/3) ... [2021-11-02 22:49:42,468 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@61680528 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 10:49:42, skipping insertion in model container [2021-11-02 22:49:42,468 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-02 22:49:42,468 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:49:42" (3/3) ... [2021-11-02 22:49:42,470 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product23.cil.c [2021-11-02 22:49:42,544 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-02 22:49:42,544 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-02 22:49:42,544 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-02 22:49:42,545 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-02 22:49:42,545 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-02 22:49:42,545 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-02 22:49:42,545 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-02 22:49:42,546 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-02 22:49:42,575 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 108 states, 107 states have (on average 1.5233644859813085) internal successors, (163), 107 states have internal predecessors, (163), 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 22:49:42,626 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2021-11-02 22:49:42,627 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 22:49:42,627 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 22:49:42,639 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:49:42,639 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:49:42,639 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-02 22:49:42,641 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 108 states, 107 states have (on average 1.5233644859813085) internal successors, (163), 107 states have internal predecessors, (163), 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 22:49:42,664 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2021-11-02 22:49:42,666 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 22:49:42,666 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 22:49:42,668 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:49:42,668 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:49:42,683 INFO L791 eck$LassoCheckResult]: Stem: 100#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~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);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(21);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(21);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(25);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(25);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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~methAndRunningLastTime~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 24#L-1true havoc main_#res;havoc main_#t~ret79, main_~retValue_acc~11, main_~tmp~8;havoc main_~retValue_acc~11;havoc main_~tmp~8; 27#L853true havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 20#L861true main_#t~ret79 := valid_product_#res;main_~tmp~8 := main_#t~ret79;havoc main_#t~ret79; 26#L949true assume 0 != main_~tmp~8; 69#L925true ~methAndRunningLastTime~0 := 0; 78#L154true havoc test_#t~nondet54, test_#t~nondet55, test_#t~nondet56, test_#t~nondet57, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 10#L165-1true [2021-11-02 22:49:42,684 INFO L793 eck$LassoCheckResult]: Loop: 10#L165-1true assume !false; 75#L576true assume test_~splverifierCounter~0 < 4; 54#L577true test_~tmp~4 := test_#t~nondet54;havoc test_#t~nondet54; 66#L585true assume !(0 != test_~tmp~4); 34#L585-1true test_~tmp___0~1 := test_#t~nondet55;havoc test_#t~nondet55; 108#L595true assume !(0 != test_~tmp___0~1); 19#L595-1true test_~tmp___2~0 := test_#t~nondet56;havoc test_#t~nondet56; 46#L605true assume 0 != test_~tmp___2~0; 80#L611-1true assume !(0 != ~pumpRunning~0); 31#L642true assume !(0 != ~systemActive~0); 49#L649true havoc __utac_acc__Specification2_spec__2_#t~ret17, __utac_acc__Specification2_spec__2_#t~ret18, __utac_acc__Specification2_spec__2_~tmp~0, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~0;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 65#L100-1true __utac_acc__Specification2_spec__2_#t~ret17 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~0 := __utac_acc__Specification2_spec__2_#t~ret17;havoc __utac_acc__Specification2_spec__2_#t~ret17; 8#L165true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0);~methAndRunningLastTime~0 := 0; 10#L165-1true [2021-11-02 22:49:42,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:49:42,691 INFO L85 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2021-11-02 22:49:42,703 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:49:42,704 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736903777] [2021-11-02 22:49:42,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:49:42,706 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:49:43,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:49:43,174 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:49:43,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:49:43,379 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:49:43,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:49:43,397 INFO L85 PathProgramCache]: Analyzing trace with hash 12573267, now seen corresponding path program 1 times [2021-11-02 22:49:43,397 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:49:43,398 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379609623] [2021-11-02 22:49:43,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:49:43,399 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:49:43,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:49:43,412 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:49:43,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:49:43,434 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:49:43,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:49:43,437 INFO L85 PathProgramCache]: Analyzing trace with hash 845869773, now seen corresponding path program 1 times [2021-11-02 22:49:43,437 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:49:43,442 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864118944] [2021-11-02 22:49:43,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:49:43,443 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:49:43,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:49:43,682 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 22:49:43,683 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:49:43,684 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864118944] [2021-11-02 22:49:43,685 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864118944] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:49:43,686 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:49:43,686 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-02 22:49:43,687 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287685015] [2021-11-02 22:49:43,881 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:49:43,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-02 22:49:43,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-02 22:49:43,906 INFO L87 Difference]: Start difference. First operand has 108 states, 107 states have (on average 1.5233644859813085) internal successors, (163), 107 states have internal predecessors, (163), 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 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 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 22:49:44,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:49:44,292 INFO L93 Difference]: Finished difference Result 262 states and 373 transitions. [2021-11-02 22:49:44,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-02 22:49:44,295 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 262 states and 373 transitions. [2021-11-02 22:49:44,302 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 167 [2021-11-02 22:49:44,311 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 262 states to 241 states and 352 transitions. [2021-11-02 22:49:44,312 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 241 [2021-11-02 22:49:44,315 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 241 [2021-11-02 22:49:44,317 INFO L73 IsDeterministic]: Start isDeterministic. Operand 241 states and 352 transitions. [2021-11-02 22:49:44,320 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-02 22:49:44,321 INFO L681 BuchiCegarLoop]: Abstraction has 241 states and 352 transitions. [2021-11-02 22:49:44,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states and 352 transitions. [2021-11-02 22:49:44,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 145. [2021-11-02 22:49:44,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 145 states have (on average 1.4551724137931035) internal successors, (211), 144 states have internal predecessors, (211), 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 22:49:44,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 211 transitions. [2021-11-02 22:49:44,369 INFO L704 BuchiCegarLoop]: Abstraction has 145 states and 211 transitions. [2021-11-02 22:49:44,369 INFO L587 BuchiCegarLoop]: Abstraction has 145 states and 211 transitions. [2021-11-02 22:49:44,370 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-02 22:49:44,370 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 145 states and 211 transitions. [2021-11-02 22:49:44,372 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 100 [2021-11-02 22:49:44,372 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 22:49:44,372 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 22:49:44,373 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:49:44,374 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:49:44,374 INFO L791 eck$LassoCheckResult]: Stem: 489#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~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);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(21);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(21);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(25);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(25);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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~methAndRunningLastTime~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 429#L-1 havoc main_#res;havoc main_#t~ret79, main_~retValue_acc~11, main_~tmp~8;havoc main_~retValue_acc~11;havoc main_~tmp~8; 430#L853 havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 421#L861 main_#t~ret79 := valid_product_#res;main_~tmp~8 := main_#t~ret79;havoc main_#t~ret79; 422#L949 assume 0 != main_~tmp~8; 432#L925 ~methAndRunningLastTime~0 := 0; 476#L154 havoc test_#t~nondet54, test_#t~nondet55, test_#t~nondet56, test_#t~nondet57, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 398#L165-1 [2021-11-02 22:49:44,374 INFO L793 eck$LassoCheckResult]: Loop: 398#L165-1 assume !false; 401#L576 assume test_~splverifierCounter~0 < 4; 465#L577 test_~tmp~4 := test_#t~nondet54;havoc test_#t~nondet54; 466#L585 assume !(0 != test_~tmp~4); 442#L585-1 test_~tmp___0~1 := test_#t~nondet55;havoc test_#t~nondet55; 443#L595 assume !(0 != test_~tmp___0~1); 419#L595-1 test_~tmp___2~0 := test_#t~nondet56;havoc test_#t~nondet56; 420#L605 assume 0 != test_~tmp___2~0; 435#L611-1 assume !(0 != ~pumpRunning~0); 391#L642 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret59, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 438#L700 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret58, processEnvironment__wrappee__lowWaterSensor_~tmp~5;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~5; 461#L674-1 assume !(0 != ~pumpRunning~0); 406#L649 havoc __utac_acc__Specification2_spec__2_#t~ret17, __utac_acc__Specification2_spec__2_#t~ret18, __utac_acc__Specification2_spec__2_~tmp~0, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~0;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 460#L100-1 __utac_acc__Specification2_spec__2_#t~ret17 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~0 := __utac_acc__Specification2_spec__2_#t~ret17;havoc __utac_acc__Specification2_spec__2_#t~ret17; 396#L165 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0);~methAndRunningLastTime~0 := 0; 398#L165-1 [2021-11-02 22:49:44,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:49:44,375 INFO L85 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2021-11-02 22:49:44,376 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:49:44,376 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617760940] [2021-11-02 22:49:44,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:49:44,377 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:49:44,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:49:44,440 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:49:44,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:49:44,515 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:49:44,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:49:44,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1343596421, now seen corresponding path program 1 times [2021-11-02 22:49:44,516 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:49:44,517 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453872699] [2021-11-02 22:49:44,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:49:44,517 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:49:44,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:49:44,523 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:49:44,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:49:44,533 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:49:44,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:49:44,534 INFO L85 PathProgramCache]: Analyzing trace with hash -1017345665, now seen corresponding path program 1 times [2021-11-02 22:49:44,535 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:49:44,535 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173436922] [2021-11-02 22:49:44,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:49:44,536 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:49:44,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:49:44,589 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:49:44,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:49:44,734 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:50:59,906 WARN L207 SmtUtils]: Spent 1.25 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2021-11-02 22:52:24,266 WARN L207 SmtUtils]: Spent 44.08 s on a formula simplification that was a NOOP. DAG size: 435 [2021-11-02 22:52:24,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 02.11 10:52:24 BoogieIcfgContainer [2021-11-02 22:52:24,513 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-02 22:52:24,514 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-02 22:52:24,514 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-02 22:52:24,515 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-02 22:52:24,516 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:49:42" (3/4) ... [2021-11-02 22:52:24,520 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-11-02 22:52:24,592 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b47befdc-dca3-4012-97ba-3b90c4b0bccf/bin/uautomizer-tBqnrhUYjU/witness.graphml [2021-11-02 22:52:24,592 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-02 22:52:24,594 INFO L168 Benchmark]: Toolchain (without parser) took 164525.36 ms. Allocated memory was 96.5 MB in the beginning and 144.7 MB in the end (delta: 48.2 MB). Free memory was 58.7 MB in the beginning and 47.8 MB in the end (delta: 10.9 MB). Peak memory consumption was 57.6 MB. Max. memory is 16.1 GB. [2021-11-02 22:52:24,595 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 96.5 MB. Free memory was 66.1 MB in the beginning and 66.1 MB in the end (delta: 21.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-02 22:52:24,596 INFO L168 Benchmark]: CACSL2BoogieTranslator took 749.44 ms. Allocated memory was 96.5 MB in the beginning and 144.7 MB in the end (delta: 48.2 MB). Free memory was 58.4 MB in the beginning and 110.5 MB in the end (delta: -52.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-02 22:52:24,596 INFO L168 Benchmark]: Boogie Procedure Inliner took 141.27 ms. Allocated memory is still 144.7 MB. Free memory was 110.5 MB in the beginning and 106.4 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-11-02 22:52:24,597 INFO L168 Benchmark]: Boogie Preprocessor took 107.43 ms. Allocated memory is still 144.7 MB. Free memory was 106.4 MB in the beginning and 104.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-02 22:52:24,598 INFO L168 Benchmark]: RCFGBuilder took 1379.80 ms. Allocated memory is still 144.7 MB. Free memory was 104.3 MB in the beginning and 62.3 MB in the end (delta: 41.9 MB). Peak memory consumption was 41.9 MB. Max. memory is 16.1 GB. [2021-11-02 22:52:24,599 INFO L168 Benchmark]: BuchiAutomizer took 162058.80 ms. Allocated memory is still 144.7 MB. Free memory was 62.3 MB in the beginning and 50.8 MB in the end (delta: 11.5 MB). Peak memory consumption was 39.3 MB. Max. memory is 16.1 GB. [2021-11-02 22:52:24,600 INFO L168 Benchmark]: Witness Printer took 78.11 ms. Allocated memory is still 144.7 MB. Free memory was 50.8 MB in the beginning and 47.8 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-02 22:52:24,604 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 96.5 MB. Free memory was 66.1 MB in the beginning and 66.1 MB in the end (delta: 21.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 749.44 ms. Allocated memory was 96.5 MB in the beginning and 144.7 MB in the end (delta: 48.2 MB). Free memory was 58.4 MB in the beginning and 110.5 MB in the end (delta: -52.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 141.27 ms. Allocated memory is still 144.7 MB. Free memory was 110.5 MB in the beginning and 106.4 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 107.43 ms. Allocated memory is still 144.7 MB. Free memory was 106.4 MB in the beginning and 104.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1379.80 ms. Allocated memory is still 144.7 MB. Free memory was 104.3 MB in the beginning and 62.3 MB in the end (delta: 41.9 MB). Peak memory consumption was 41.9 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 162058.80 ms. Allocated memory is still 144.7 MB. Free memory was 62.3 MB in the beginning and 50.8 MB in the end (delta: 11.5 MB). Peak memory consumption was 39.3 MB. Max. memory is 16.1 GB. * Witness Printer took 78.11 ms. Allocated memory is still 144.7 MB. Free memory was 50.8 MB in the beginning and 47.8 MB in the end (delta: 3.0 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 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 145 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 161.9s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 161.3s. Construction of modules took 0.2s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 96 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 145 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 150 SDtfs, 577 SDslu, 701 SDs, 0 SdLazy, 42 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI0 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: 575]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=3352} State at position 1 is {NULL=0, retValue_acc=0, NULL=0, NULL=0, NULL=0, NULL=3372, NULL=0, NULL=3352, NULL=3357, NULL=0, NULL=0, NULL=3375, NULL=0, NULL=3363, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@226cd56d=0, NULL=3370, methaneLevelCritical=0, NULL=3381, NULL=3355, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6624f582=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5de98be5=0, tmp=0, NULL=3378, NULL=0, NULL=0, NULL=3366, tmp___1=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7b7e792=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@36d81d2d=0, NULL=0, NULL=0, NULL=0, NULL=3380, cleanupTimeShifts=4, NULL=3379, NULL=3368, NULL=3371, NULL=0, systemActive=1, waterLevel=1, NULL=0, NULL=0, NULL=0, NULL=0, NULL=3365, NULL=0, NULL=3358, NULL=0, retValue_acc=0, NULL=3382, \result=1, head=0, pumpRunning=0, NULL=3367, \result=0, NULL=3359, NULL=3362, NULL=0, NULL=0, tmp=1, NULL=0, NULL=3364, tmp___0=0, NULL=0, NULL=0, NULL=3374, NULL=0, tmp___2=57, tmp___0=0, splverifierCounter=0, NULL=0, methAndRunningLastTime=0, \result=0, NULL=3373, NULL=3356, NULL=3361, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5a7a6dfd=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7711736e=57, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@67204a3c=0, head=0, tmp=0, NULL=0, NULL=0, NULL=3354, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2b62a954=0, NULL=3353, NULL=3360, NULL=0, NULL=3369} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L57] int waterLevel = 1; [L58] int methaneLevelCritical = 0; [L148] int methAndRunningLastTime ; [L356] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L635] int pumpRunning = 0; [L636] int systemActive = 1; [L866] int cleanupTimeShifts = 4; [L940] int retValue_acc ; [L941] int tmp ; [L857] int retValue_acc ; [L860] retValue_acc = 1 [L861] return (retValue_acc); [L947] tmp = valid_product() [L949] COND TRUE \read(tmp) [L153] methAndRunningLastTime = 0 [L566] int splverifierCounter ; [L567] int tmp ; [L568] int tmp___0 ; [L569] int tmp___1 ; [L570] int tmp___2 ; [L573] splverifierCounter = 0 Loop: [L575] COND TRUE 1 [L577] COND TRUE splverifierCounter < 4 [L583] tmp = __VERIFIER_nondet_int() [L585] COND FALSE !(\read(tmp)) [L593] tmp___0 = __VERIFIER_nondet_int() [L595] COND FALSE !(\read(tmp___0)) [L603] tmp___2 = __VERIFIER_nondet_int() [L605] COND TRUE \read(tmp___2) [L642] COND FALSE !(\read(pumpRunning)) [L649] COND TRUE \read(systemActive) [L697] int tmp ; [L700] COND FALSE !(\read(pumpRunning)) [L671] int tmp ; [L674] COND FALSE !(\read(pumpRunning)) [L158] int tmp ; [L159] int tmp___0 ; [L96] int retValue_acc ; [L99] retValue_acc = methaneLevelCritical [L100] return (retValue_acc); [L163] tmp = isMethaneLevelCritical() [L165] COND FALSE !(\read(tmp)) [L181] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-11-02 22:52:24,701 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b47befdc-dca3-4012-97ba-3b90c4b0bccf/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)