./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product35.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_56d8b803-63d6-4cd8-9145-068db6f72661/bin/uautomizer-tBqnrhUYjU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56d8b803-63d6-4cd8-9145-068db6f72661/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_56d8b803-63d6-4cd8-9145-068db6f72661/bin/uautomizer-tBqnrhUYjU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56d8b803-63d6-4cd8-9145-068db6f72661/bin/uautomizer-tBqnrhUYjU/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product35.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56d8b803-63d6-4cd8-9145-068db6f72661/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_56d8b803-63d6-4cd8-9145-068db6f72661/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 d8d5749cb33f10edd647435755bf2e2192f6038b258c1bda289ea3f61ba8ee50 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-02 22:16:45,239 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-02 22:16:45,242 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-02 22:16:45,282 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-02 22:16:45,282 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-02 22:16:45,284 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-02 22:16:45,286 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-02 22:16:45,289 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-02 22:16:45,292 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-02 22:16:45,294 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-02 22:16:45,295 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-02 22:16:45,297 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-02 22:16:45,298 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-02 22:16:45,299 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-02 22:16:45,301 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-02 22:16:45,303 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-02 22:16:45,305 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-02 22:16:45,306 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-02 22:16:45,309 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-02 22:16:45,312 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-02 22:16:45,315 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-02 22:16:45,317 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-02 22:16:45,319 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-02 22:16:45,321 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-02 22:16:45,326 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-02 22:16:45,326 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-02 22:16:45,327 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-02 22:16:45,328 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-02 22:16:45,329 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-02 22:16:45,330 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-02 22:16:45,331 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-02 22:16:45,332 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-02 22:16:45,334 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-02 22:16:45,335 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-02 22:16:45,336 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-02 22:16:45,337 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-02 22:16:45,338 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-02 22:16:45,338 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-02 22:16:45,338 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-02 22:16:45,339 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-02 22:16:45,340 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-02 22:16:45,341 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56d8b803-63d6-4cd8-9145-068db6f72661/bin/uautomizer-tBqnrhUYjU/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-02 22:16:45,383 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-02 22:16:45,384 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-02 22:16:45,384 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-02 22:16:45,392 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-02 22:16:45,394 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-02 22:16:45,394 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-02 22:16:45,394 INFO L138 SettingsManager]: * Use SBE=true [2021-11-02 22:16:45,395 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-02 22:16:45,395 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-02 22:16:45,395 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-02 22:16:45,396 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-02 22:16:45,397 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-02 22:16:45,397 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-02 22:16:45,397 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-02 22:16:45,398 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-02 22:16:45,398 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-02 22:16:45,398 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-02 22:16:45,398 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-02 22:16:45,399 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-02 22:16:45,399 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-02 22:16:45,399 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-02 22:16:45,399 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-02 22:16:45,400 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-02 22:16:45,400 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-02 22:16:45,401 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-02 22:16:45,401 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-02 22:16:45,401 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-02 22:16:45,401 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-02 22:16:45,402 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-02 22:16:45,402 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-02 22:16:45,402 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-02 22:16:45,403 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-02 22:16:45,405 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-02 22:16:45,405 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_56d8b803-63d6-4cd8-9145-068db6f72661/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56d8b803-63d6-4cd8-9145-068db6f72661/bin/uautomizer-tBqnrhUYjU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d8d5749cb33f10edd647435755bf2e2192f6038b258c1bda289ea3f61ba8ee50 [2021-11-02 22:16:45,755 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-02 22:16:45,782 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-02 22:16:45,785 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-02 22:16:45,787 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-02 22:16:45,788 INFO L275 PluginConnector]: CDTParser initialized [2021-11-02 22:16:45,789 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56d8b803-63d6-4cd8-9145-068db6f72661/bin/uautomizer-tBqnrhUYjU/../../sv-benchmarks/c/product-lines/minepump_spec1_product35.cil.c [2021-11-02 22:16:45,865 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56d8b803-63d6-4cd8-9145-068db6f72661/bin/uautomizer-tBqnrhUYjU/data/6241609d5/212f4569f35e4d9a8210d72f43dda68b/FLAG572eae3ff [2021-11-02 22:16:46,620 INFO L306 CDTParser]: Found 1 translation units. [2021-11-02 22:16:46,621 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56d8b803-63d6-4cd8-9145-068db6f72661/sv-benchmarks/c/product-lines/minepump_spec1_product35.cil.c [2021-11-02 22:16:46,653 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56d8b803-63d6-4cd8-9145-068db6f72661/bin/uautomizer-tBqnrhUYjU/data/6241609d5/212f4569f35e4d9a8210d72f43dda68b/FLAG572eae3ff [2021-11-02 22:16:46,864 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56d8b803-63d6-4cd8-9145-068db6f72661/bin/uautomizer-tBqnrhUYjU/data/6241609d5/212f4569f35e4d9a8210d72f43dda68b [2021-11-02 22:16:46,869 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-02 22:16:46,870 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-02 22:16:46,889 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-02 22:16:46,889 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-02 22:16:46,893 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-02 22:16:46,894 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:16:46" (1/1) ... [2021-11-02 22:16:46,896 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35886d74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:16:46, skipping insertion in model container [2021-11-02 22:16:46,896 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:16:46" (1/1) ... [2021-11-02 22:16:46,904 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-02 22:16:46,964 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-02 22:16:47,240 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_56d8b803-63d6-4cd8-9145-068db6f72661/sv-benchmarks/c/product-lines/minepump_spec1_product35.cil.c[3064,3077] [2021-11-02 22:16:47,344 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 22:16:47,357 INFO L203 MainTranslator]: Completed pre-run [2021-11-02 22:16:47,383 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_56d8b803-63d6-4cd8-9145-068db6f72661/sv-benchmarks/c/product-lines/minepump_spec1_product35.cil.c[3064,3077] [2021-11-02 22:16:47,440 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 22:16:47,463 INFO L208 MainTranslator]: Completed translation [2021-11-02 22:16:47,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:16:47 WrapperNode [2021-11-02 22:16:47,464 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-02 22:16:47,466 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-02 22:16:47,466 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-02 22:16:47,466 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-02 22:16:47,476 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:16:47" (1/1) ... [2021-11-02 22:16:47,499 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:16:47" (1/1) ... [2021-11-02 22:16:47,543 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-02 22:16:47,544 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-02 22:16:47,544 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-02 22:16:47,544 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-02 22:16:47,555 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:16:47" (1/1) ... [2021-11-02 22:16:47,556 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:16:47" (1/1) ... [2021-11-02 22:16:47,561 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:16:47" (1/1) ... [2021-11-02 22:16:47,561 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:16:47" (1/1) ... [2021-11-02 22:16:47,572 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:16:47" (1/1) ... [2021-11-02 22:16:47,580 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:16:47" (1/1) ... [2021-11-02 22:16:47,583 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:16:47" (1/1) ... [2021-11-02 22:16:47,589 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-02 22:16:47,590 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-02 22:16:47,590 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-02 22:16:47,591 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-02 22:16:47,592 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:16:47" (1/1) ... [2021-11-02 22:16:47,601 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:16:47,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56d8b803-63d6-4cd8-9145-068db6f72661/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:16:47,630 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56d8b803-63d6-4cd8-9145-068db6f72661/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:16:47,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56d8b803-63d6-4cd8-9145-068db6f72661/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-02 22:16:47,686 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-02 22:16:47,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-02 22:16:47,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-02 22:16:47,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-02 22:16:48,588 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-02 22:16:48,588 INFO L299 CfgBuilder]: Removed 100 assume(true) statements. [2021-11-02 22:16:48,591 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:16:48 BoogieIcfgContainer [2021-11-02 22:16:48,591 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-02 22:16:48,592 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-02 22:16:48,592 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-02 22:16:48,596 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-02 22:16:48,597 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-02 22:16:48,597 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.11 10:16:46" (1/3) ... [2021-11-02 22:16:48,599 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1b50a899 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 10:16:48, skipping insertion in model container [2021-11-02 22:16:48,599 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-02 22:16:48,600 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:16:47" (2/3) ... [2021-11-02 22:16:48,600 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1b50a899 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 10:16:48, skipping insertion in model container [2021-11-02 22:16:48,600 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-02 22:16:48,601 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:16:48" (3/3) ... [2021-11-02 22:16:48,602 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product35.cil.c [2021-11-02 22:16:48,657 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-02 22:16:48,657 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-02 22:16:48,657 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-02 22:16:48,658 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-02 22:16:48,658 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-02 22:16:48,658 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-02 22:16:48,658 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-02 22:16:48,658 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-02 22:16:48,681 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 77 states, 76 states have (on average 1.5394736842105263) internal successors, (117), 76 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:16:48,710 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2021-11-02 22:16:48,710 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 22:16:48,710 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 22:16:48,720 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-02 22:16:48,720 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:16:48,720 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-02 22:16:48,721 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 77 states, 76 states have (on average 1.5394736842105263) internal successors, (117), 76 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:16:48,728 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2021-11-02 22:16:48,729 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 22:16:48,729 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 22:16:48,730 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-02 22:16:48,730 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:16:48,737 INFO L791 eck$LassoCheckResult]: Stem: 53#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~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~string26.base, #t~string26.offset := #Ultimate.allocOnStack(13);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(110, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string30.base, #t~string30.offset, 1);call write~init~int(102, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(102, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 3 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string32.base, #t~string32.offset, 1);call write~init~int(80, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(117, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(109, #t~string32.base, 3 + #t~string32.offset, 1);call write~init~int(112, #t~string32.base, 4 + #t~string32.offset, 1);call write~init~int(58, #t~string32.base, 5 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 6 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string34.base, #t~string34.offset, 1);call write~init~int(110, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 2 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string36.base, #t~string36.offset, 1);call write~init~int(102, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(102, #t~string36.base, 2 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 3 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string38.base, #t~string38.offset, 1);call write~init~int(32, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 2 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string40.base, #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 1 + #t~string40.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(21);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(30);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(9);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(25);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(30);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(9);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 46#L-1true havoc main_#res;havoc main_#t~ret43, main_~retValue_acc~8, main_~tmp~4;havoc main_~retValue_acc~8;havoc main_~tmp~4; 7#L452true havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 65#L460true main_#t~ret43 := valid_product_#res;main_~tmp~4 := main_#t~ret43;havoc main_#t~ret43; 38#L547true assume 0 != main_~tmp~4; 25#L524true havoc test_#t~nondet19, test_#t~nondet20, test_#t~nondet21, test_#t~nondet22, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 56#L169-1true [2021-11-02 22:16:48,738 INFO L793 eck$LassoCheckResult]: Loop: 56#L169-1true assume !false; 72#L201true assume test_~splverifierCounter~0 < 4; 15#L202true test_~tmp~1 := test_#t~nondet19;havoc test_#t~nondet19; 10#L210true assume !(0 != test_~tmp~1); 31#L210-1true test_~tmp___0~1 := test_#t~nondet20;havoc test_#t~nondet20; 74#L220true assume !(0 != test_~tmp___0~1); 47#L220-1true test_~tmp___2~0 := test_#t~nondet21;havoc test_#t~nondet21; 8#L230true assume 0 != test_~tmp___2~0; 75#L236-1true assume !(0 != ~pumpRunning~0); 22#L267true assume !(0 != ~systemActive~0); 20#L274true havoc __utac_acc__Specification1_spec__1_#t~ret17, __utac_acc__Specification1_spec__1_#t~ret18, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~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; 64#L100true __utac_acc__Specification1_spec__1_#t~ret17 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret17;havoc __utac_acc__Specification1_spec__1_#t~ret17; 69#L169true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 56#L169-1true [2021-11-02 22:16:48,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:16:48,745 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-11-02 22:16:48,757 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:16:48,758 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098733783] [2021-11-02 22:16:48,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:16:48,759 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:16:49,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:16:49,048 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:16:49,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:16:49,277 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:16:49,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:16:49,282 INFO L85 PathProgramCache]: Analyzing trace with hash -1672941109, now seen corresponding path program 1 times [2021-11-02 22:16:49,282 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:16:49,282 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056256896] [2021-11-02 22:16:49,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:16:49,283 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:16:49,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:16:49,292 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:16:49,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:16:49,303 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:16:49,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:16:49,310 INFO L85 PathProgramCache]: Analyzing trace with hash 41337829, now seen corresponding path program 1 times [2021-11-02 22:16:49,311 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:16:49,311 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714758496] [2021-11-02 22:16:49,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:16:49,312 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:16:49,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:16:49,492 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 22:16:49,493 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:16:49,493 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714758496] [2021-11-02 22:16:49,494 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714758496] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:16:49,495 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:16:49,495 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-02 22:16:49,496 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669272404] [2021-11-02 22:16:49,715 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:16:49,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-02 22:16:49,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-02 22:16:49,738 INFO L87 Difference]: Start difference. First operand has 77 states, 76 states have (on average 1.5394736842105263) internal successors, (117), 76 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 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 22:16:50,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:16:50,046 INFO L93 Difference]: Finished difference Result 198 states and 276 transitions. [2021-11-02 22:16:50,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-02 22:16:50,049 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 198 states and 276 transitions. [2021-11-02 22:16:50,061 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 125 [2021-11-02 22:16:50,079 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 198 states to 177 states and 255 transitions. [2021-11-02 22:16:50,086 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 177 [2021-11-02 22:16:50,087 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 177 [2021-11-02 22:16:50,092 INFO L73 IsDeterministic]: Start isDeterministic. Operand 177 states and 255 transitions. [2021-11-02 22:16:50,094 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-02 22:16:50,094 INFO L681 BuchiCegarLoop]: Abstraction has 177 states and 255 transitions. [2021-11-02 22:16:50,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states and 255 transitions. [2021-11-02 22:16:50,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 111. [2021-11-02 22:16:50,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 111 states have (on average 1.4324324324324325) internal successors, (159), 110 states have internal predecessors, (159), 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 22:16:50,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 159 transitions. [2021-11-02 22:16:50,141 INFO L704 BuchiCegarLoop]: Abstraction has 111 states and 159 transitions. [2021-11-02 22:16:50,141 INFO L587 BuchiCegarLoop]: Abstraction has 111 states and 159 transitions. [2021-11-02 22:16:50,142 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-02 22:16:50,149 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 111 states and 159 transitions. [2021-11-02 22:16:50,152 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 78 [2021-11-02 22:16:50,162 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 22:16:50,163 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 22:16:50,164 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-02 22:16:50,164 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:16:50,164 INFO L791 eck$LassoCheckResult]: Stem: 357#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~string26.base, #t~string26.offset := #Ultimate.allocOnStack(13);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(110, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string30.base, #t~string30.offset, 1);call write~init~int(102, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(102, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 3 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string32.base, #t~string32.offset, 1);call write~init~int(80, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(117, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(109, #t~string32.base, 3 + #t~string32.offset, 1);call write~init~int(112, #t~string32.base, 4 + #t~string32.offset, 1);call write~init~int(58, #t~string32.base, 5 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 6 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string34.base, #t~string34.offset, 1);call write~init~int(110, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 2 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string36.base, #t~string36.offset, 1);call write~init~int(102, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(102, #t~string36.base, 2 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 3 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string38.base, #t~string38.offset, 1);call write~init~int(32, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 2 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string40.base, #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 1 + #t~string40.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(21);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(30);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(9);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(25);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(30);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(9);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 352#L-1 havoc main_#res;havoc main_#t~ret43, main_~retValue_acc~8, main_~tmp~4;havoc main_~retValue_acc~8;havoc main_~tmp~4; 299#L452 havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 300#L460 main_#t~ret43 := valid_product_#res;main_~tmp~4 := main_#t~ret43;havoc main_#t~ret43; 343#L547 assume 0 != main_~tmp~4; 331#L524 havoc test_#t~nondet19, test_#t~nondet20, test_#t~nondet21, test_#t~nondet22, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 332#L169-1 [2021-11-02 22:16:50,165 INFO L793 eck$LassoCheckResult]: Loop: 332#L169-1 assume !false; 359#L201 assume test_~splverifierCounter~0 < 4; 319#L202 test_~tmp~1 := test_#t~nondet19;havoc test_#t~nondet19; 306#L210 assume !(0 != test_~tmp~1); 308#L210-1 test_~tmp___0~1 := test_#t~nondet20;havoc test_#t~nondet20; 338#L220 assume !(0 != test_~tmp___0~1); 353#L220-1 test_~tmp___2~0 := test_#t~nondet21;havoc test_#t~nondet21; 301#L230 assume 0 != test_~tmp___2~0; 302#L236-1 assume !(0 != ~pumpRunning~0); 294#L267 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret23, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 329#L299 assume !(0 == ~pumpRunning~0); 326#L274 havoc __utac_acc__Specification1_spec__1_#t~ret17, __utac_acc__Specification1_spec__1_#t~ret18, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~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; 327#L100 __utac_acc__Specification1_spec__1_#t~ret17 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret17;havoc __utac_acc__Specification1_spec__1_#t~ret17; 362#L169 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 332#L169-1 [2021-11-02 22:16:50,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:16:50,166 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-11-02 22:16:50,166 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:16:50,167 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699190126] [2021-11-02 22:16:50,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:16:50,167 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:16:50,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:16:50,290 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:16:50,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:16:50,421 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:16:50,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:16:50,432 INFO L85 PathProgramCache]: Analyzing trace with hash -353177349, now seen corresponding path program 1 times [2021-11-02 22:16:50,433 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:16:50,433 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208272001] [2021-11-02 22:16:50,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:16:50,436 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:16:50,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:16:50,456 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 22:16:50,456 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:16:50,457 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208272001] [2021-11-02 22:16:50,457 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208272001] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:16:50,457 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:16:50,457 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 22:16:50,458 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183368130] [2021-11-02 22:16:50,458 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-02 22:16:50,459 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:16:50,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 22:16:50,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:16:50,460 INFO L87 Difference]: Start difference. First operand 111 states and 159 transitions. cyclomatic complexity: 51 Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:16:50,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:16:50,533 INFO L93 Difference]: Finished difference Result 150 states and 202 transitions. [2021-11-02 22:16:50,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 22:16:50,535 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 150 states and 202 transitions. [2021-11-02 22:16:50,538 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 108 [2021-11-02 22:16:50,541 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 150 states to 150 states and 202 transitions. [2021-11-02 22:16:50,542 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 150 [2021-11-02 22:16:50,542 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 150 [2021-11-02 22:16:50,543 INFO L73 IsDeterministic]: Start isDeterministic. Operand 150 states and 202 transitions. [2021-11-02 22:16:50,544 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-02 22:16:50,545 INFO L681 BuchiCegarLoop]: Abstraction has 150 states and 202 transitions. [2021-11-02 22:16:50,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states and 202 transitions. [2021-11-02 22:16:50,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2021-11-02 22:16:50,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 150 states have (on average 1.3466666666666667) internal successors, (202), 149 states have internal predecessors, (202), 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 22:16:50,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 202 transitions. [2021-11-02 22:16:50,559 INFO L704 BuchiCegarLoop]: Abstraction has 150 states and 202 transitions. [2021-11-02 22:16:50,559 INFO L587 BuchiCegarLoop]: Abstraction has 150 states and 202 transitions. [2021-11-02 22:16:50,559 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-02 22:16:50,559 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 150 states and 202 transitions. [2021-11-02 22:16:50,561 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 108 [2021-11-02 22:16:50,561 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 22:16:50,562 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 22:16:50,563 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-02 22:16:50,563 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:16:50,563 INFO L791 eck$LassoCheckResult]: Stem: 633#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~string26.base, #t~string26.offset := #Ultimate.allocOnStack(13);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(110, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string30.base, #t~string30.offset, 1);call write~init~int(102, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(102, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 3 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string32.base, #t~string32.offset, 1);call write~init~int(80, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(117, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(109, #t~string32.base, 3 + #t~string32.offset, 1);call write~init~int(112, #t~string32.base, 4 + #t~string32.offset, 1);call write~init~int(58, #t~string32.base, 5 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 6 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string34.base, #t~string34.offset, 1);call write~init~int(110, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 2 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string36.base, #t~string36.offset, 1);call write~init~int(102, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(102, #t~string36.base, 2 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 3 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string38.base, #t~string38.offset, 1);call write~init~int(32, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 2 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string40.base, #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 1 + #t~string40.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(21);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(30);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(9);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(25);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(30);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(9);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 626#L-1 havoc main_#res;havoc main_#t~ret43, main_~retValue_acc~8, main_~tmp~4;havoc main_~retValue_acc~8;havoc main_~tmp~4; 566#L452 havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 567#L460 main_#t~ret43 := valid_product_#res;main_~tmp~4 := main_#t~ret43;havoc main_#t~ret43; 616#L547 assume 0 != main_~tmp~4; 599#L524 havoc test_#t~nondet19, test_#t~nondet20, test_#t~nondet21, test_#t~nondet22, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 600#L169-1 [2021-11-02 22:16:50,564 INFO L793 eck$LassoCheckResult]: Loop: 600#L169-1 assume !false; 693#L201 assume test_~splverifierCounter~0 < 4; 692#L202 test_~tmp~1 := test_#t~nondet19;havoc test_#t~nondet19; 691#L210 assume !(0 != test_~tmp~1); 689#L210-1 test_~tmp___0~1 := test_#t~nondet20;havoc test_#t~nondet20; 688#L220 assume !(0 != test_~tmp___0~1); 686#L220-1 test_~tmp___2~0 := test_#t~nondet21;havoc test_#t~nondet21; 684#L230 assume 0 != test_~tmp___2~0; 683#L236-1 assume !(0 != ~pumpRunning~0); 594#L267 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret23, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 595#L299 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret41, isHighWaterLevel_~retValue_acc~5, isHighWaterLevel_~tmp~3, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~5;havoc isHighWaterLevel_~tmp~3;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 622#L140 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 640#L145 isHighWaterLevel_#t~ret41 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~3 := isHighWaterLevel_#t~ret41;havoc isHighWaterLevel_#t~ret41; 571#L401 assume 0 != isHighWaterLevel_~tmp~3;isHighWaterLevel_~tmp___0~2 := 0; 572#L401-2 isHighWaterLevel_~retValue_acc~5 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~5; 579#L407 processEnvironment_#t~ret23 := isHighWaterLevel_#res;processEnvironment_~tmp~2 := processEnvironment_#t~ret23;havoc processEnvironment_#t~ret23; 580#L303 assume !(0 != processEnvironment_~tmp~2); 639#L274 havoc __utac_acc__Specification1_spec__1_#t~ret17, __utac_acc__Specification1_spec__1_#t~ret18, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~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; 697#L100 __utac_acc__Specification1_spec__1_#t~ret17 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret17;havoc __utac_acc__Specification1_spec__1_#t~ret17; 695#L169 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 600#L169-1 [2021-11-02 22:16:50,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:16:50,565 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2021-11-02 22:16:50,565 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:16:50,565 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224104333] [2021-11-02 22:16:50,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:16:50,566 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:16:50,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:16:50,615 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:16:50,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:16:50,674 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:16:50,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:16:50,675 INFO L85 PathProgramCache]: Analyzing trace with hash -539551513, now seen corresponding path program 1 times [2021-11-02 22:16:50,675 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:16:50,675 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909298774] [2021-11-02 22:16:50,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:16:50,676 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:16:50,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:16:50,682 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:16:50,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:16:50,690 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:16:50,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:16:50,691 INFO L85 PathProgramCache]: Analyzing trace with hash -524839539, now seen corresponding path program 1 times [2021-11-02 22:16:50,692 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:16:50,692 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545322472] [2021-11-02 22:16:50,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:16:50,693 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:16:50,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:16:50,737 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:16:50,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:16:50,806 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:18:01,569 WARN L207 SmtUtils]: Spent 1.17 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-11-02 22:19:19,639 WARN L207 SmtUtils]: Spent 38.06 s on a formula simplification that was a NOOP. DAG size: 433 [2021-11-02 22:19:19,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 02.11 10:19:19 BoogieIcfgContainer [2021-11-02 22:19:19,855 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-02 22:19:19,855 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-02 22:19:19,856 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-02 22:19:19,856 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-02 22:19:19,857 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:16:48" (3/4) ... [2021-11-02 22:19:19,861 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-11-02 22:19:19,944 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56d8b803-63d6-4cd8-9145-068db6f72661/bin/uautomizer-tBqnrhUYjU/witness.graphml [2021-11-02 22:19:19,944 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-02 22:19:19,946 INFO L168 Benchmark]: Toolchain (without parser) took 153074.63 ms. Allocated memory was 107.0 MB in the beginning and 132.1 MB in the end (delta: 25.2 MB). Free memory was 68.6 MB in the beginning and 40.6 MB in the end (delta: 28.0 MB). Peak memory consumption was 52.7 MB. Max. memory is 16.1 GB. [2021-11-02 22:19:19,947 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 107.0 MB. Free memory was 85.6 MB in the beginning and 85.6 MB in the end (delta: 64.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-02 22:19:19,948 INFO L168 Benchmark]: CACSL2BoogieTranslator took 575.88 ms. Allocated memory is still 107.0 MB. Free memory was 68.4 MB in the beginning and 72.0 MB in the end (delta: -3.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-02 22:19:19,949 INFO L168 Benchmark]: Boogie Procedure Inliner took 77.19 ms. Allocated memory is still 107.0 MB. Free memory was 72.0 MB in the beginning and 69.0 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-02 22:19:19,950 INFO L168 Benchmark]: Boogie Preprocessor took 45.22 ms. Allocated memory is still 107.0 MB. Free memory was 69.0 MB in the beginning and 66.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-02 22:19:19,951 INFO L168 Benchmark]: RCFGBuilder took 1001.01 ms. Allocated memory was 107.0 MB in the beginning and 132.1 MB in the end (delta: 25.2 MB). Free memory was 66.8 MB in the beginning and 101.7 MB in the end (delta: -34.9 MB). Peak memory consumption was 40.6 MB. Max. memory is 16.1 GB. [2021-11-02 22:19:19,952 INFO L168 Benchmark]: BuchiAutomizer took 151262.75 ms. Allocated memory is still 132.1 MB. Free memory was 101.7 MB in the beginning and 42.7 MB in the end (delta: 59.0 MB). Peak memory consumption was 78.0 MB. Max. memory is 16.1 GB. [2021-11-02 22:19:19,953 INFO L168 Benchmark]: Witness Printer took 88.86 ms. Allocated memory is still 132.1 MB. Free memory was 42.7 MB in the beginning and 40.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-02 22:19:19,958 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 107.0 MB. Free memory was 85.6 MB in the beginning and 85.6 MB in the end (delta: 64.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 575.88 ms. Allocated memory is still 107.0 MB. Free memory was 68.4 MB in the beginning and 72.0 MB in the end (delta: -3.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 77.19 ms. Allocated memory is still 107.0 MB. Free memory was 72.0 MB in the beginning and 69.0 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 45.22 ms. Allocated memory is still 107.0 MB. Free memory was 69.0 MB in the beginning and 66.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1001.01 ms. Allocated memory was 107.0 MB in the beginning and 132.1 MB in the end (delta: 25.2 MB). Free memory was 66.8 MB in the beginning and 101.7 MB in the end (delta: -34.9 MB). Peak memory consumption was 40.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 151262.75 ms. Allocated memory is still 132.1 MB. Free memory was 101.7 MB in the beginning and 42.7 MB in the end (delta: 59.0 MB). Peak memory consumption was 78.0 MB. Max. memory is 16.1 GB. * Witness Printer took 88.86 ms. Allocated memory is still 132.1 MB. Free memory was 42.7 MB in the beginning and 40.6 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 150 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 151.1s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 150.5s. Construction of modules took 0.2s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 66 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 150 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 214 SDtfs, 568 SDslu, 527 SDs, 0 SdLazy, 60 SolverSat, 23 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: 200]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=8422} State at position 1 is {NULL=0, retValue_acc=0, NULL=0, NULL=0, NULL=53650, NULL=0, NULL=8422, NULL=0, NULL=24910, NULL=24907, NULL=8424, retValue_acc=0, NULL=24908, NULL=53646, methaneLevelCritical=0, NULL=53657, tmp___0=0, retValue_acc=0, NULL=0, NULL=0, NULL=0, tmp___1=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1ab96ee1=0, tmp___0=0, NULL=53647, NULL=53655, cleanupTimeShifts=4, NULL=53643, tmp=0, NULL=53645, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@73508014=0, NULL=0, systemActive=1, waterLevel=1, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=53641, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@84a53f3=0, \result=0, NULL=0, NULL=53653, \result=1, head=0, pumpRunning=0, \result=0, NULL=8425, tmp=1, NULL=0, NULL=53658, retValue_acc=1, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@43736de5=0, tmp=0, \result=1, NULL=53651, retValue_acc=1, NULL=0, NULL=0, tmp=1, NULL=53659, NULL=0, NULL=0, NULL=8423, NULL=0, tmp___2=55, NULL=0, NULL=53654, tmp___0=0, NULL=53648, splverifierCounter=0, NULL=0, \result=0, NULL=24909, NULL=53652, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@662cd76a=0, NULL=53660, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@74154240=55, head=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5a942680=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@57c922ac=0, NULL=0, NULL=0, NULL=53642, NULL=53644, NULL=8426, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7ab17ffe=0, NULL=53656, NULL=53640} - 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; [L260] int pumpRunning = 0; [L261] int systemActive = 1; [L465] int cleanupTimeShifts = 4; [L730] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L538] int retValue_acc ; [L539] int tmp ; [L456] int retValue_acc ; [L459] retValue_acc = 1 [L460] return (retValue_acc); [L545] tmp = valid_product() [L547] COND TRUE \read(tmp) [L191] int splverifierCounter ; [L192] int tmp ; [L193] int tmp___0 ; [L194] int tmp___1 ; [L195] int tmp___2 ; [L198] splverifierCounter = 0 Loop: [L200] COND TRUE 1 [L202] COND TRUE splverifierCounter < 4 [L208] tmp = __VERIFIER_nondet_int() [L210] COND FALSE !(\read(tmp)) [L218] tmp___0 = __VERIFIER_nondet_int() [L220] COND FALSE !(\read(tmp___0)) [L228] tmp___2 = __VERIFIER_nondet_int() [L230] COND TRUE \read(tmp___2) [L267] COND FALSE !(\read(pumpRunning)) [L274] COND TRUE \read(systemActive) [L296] int tmp ; [L299] COND TRUE ! pumpRunning [L393] int retValue_acc ; [L394] int tmp ; [L395] int tmp___0 ; [L137] int retValue_acc ; [L140] COND TRUE waterLevel < 2 [L141] retValue_acc = 1 [L142] return (retValue_acc); [L399] tmp = isHighWaterSensorDry() [L401] COND TRUE \read(tmp) [L402] tmp___0 = 0 [L406] retValue_acc = tmp___0 [L407] return (retValue_acc); [L301] tmp = isHighWaterLevel() [L303] COND FALSE !(\read(tmp)) [L162] int tmp ; [L163] int tmp___0 ; [L96] int retValue_acc ; [L99] retValue_acc = methaneLevelCritical [L100] return (retValue_acc); [L167] tmp = isMethaneLevelCritical() [L169] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-11-02 22:19:20,056 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56d8b803-63d6-4cd8-9145-068db6f72661/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)