./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product63.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_657fa97b-c340-464d-afc1-2bde2b414160/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_657fa97b-c340-464d-afc1-2bde2b414160/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_657fa97b-c340-464d-afc1-2bde2b414160/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_657fa97b-c340-464d-afc1-2bde2b414160/bin/uautomizer-GMMbpWq8iD/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product63.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_657fa97b-c340-464d-afc1-2bde2b414160/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_657fa97b-c340-464d-afc1-2bde2b414160/bin/uautomizer-GMMbpWq8iD --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bff509ff7af2b9788fd6216f7196709183d48c973cf9a066c9793f96467b2abf ................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:55:02,685 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:55:02,690 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:55:02,769 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:55:02,772 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:55:02,782 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:55:02,785 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:55:02,792 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:55:02,796 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:55:02,807 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:55:02,809 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:55:02,812 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:55:02,813 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:55:02,817 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:55:02,821 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:55:02,833 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:55:02,836 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:55:02,838 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:55:02,842 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:55:02,851 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:55:02,855 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:55:02,857 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:55:02,863 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:55:02,864 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:55:02,874 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:55:02,875 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:55:02,876 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:55:02,879 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:55:02,880 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:55:02,882 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:55:02,883 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:55:02,885 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:55:02,887 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:55:02,889 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:55:02,892 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:55:02,892 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:55:02,893 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:55:02,894 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:55:02,894 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:55:02,896 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:55:02,897 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:55:02,903 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_657fa97b-c340-464d-afc1-2bde2b414160/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-28 23:55:02,973 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:55:02,973 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:55:02,974 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:55:02,974 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:55:02,977 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:55:02,978 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:55:02,978 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:55:02,978 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 23:55:02,979 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 23:55:02,979 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 23:55:02,981 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 23:55:02,981 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 23:55:02,982 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 23:55:02,982 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:55:02,982 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:55:02,983 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:55:02,983 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:55:02,983 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:55:02,983 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:55:02,984 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 23:55:02,984 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 23:55:02,984 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 23:55:02,985 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:55:02,985 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:55:02,985 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 23:55:02,985 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:55:02,988 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 23:55:02,989 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:55:02,989 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:55:02,990 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:55:02,990 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:55:02,990 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:55:02,992 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 23:55:02,992 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_657fa97b-c340-464d-afc1-2bde2b414160/bin/uautomizer-GMMbpWq8iD/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_657fa97b-c340-464d-afc1-2bde2b414160/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bff509ff7af2b9788fd6216f7196709183d48c973cf9a066c9793f96467b2abf [2021-10-28 23:55:03,364 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:55:03,409 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:55:03,412 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:55:03,414 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:55:03,416 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:55:03,417 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_657fa97b-c340-464d-afc1-2bde2b414160/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/product-lines/minepump_spec2_product63.cil.c [2021-10-28 23:55:03,525 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_657fa97b-c340-464d-afc1-2bde2b414160/bin/uautomizer-GMMbpWq8iD/data/b0286d221/566e1d9fea5b4fabac8ff5c0d3ee1699/FLAG67a7fc26a [2021-10-28 23:55:04,264 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:55:04,264 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_657fa97b-c340-464d-afc1-2bde2b414160/sv-benchmarks/c/product-lines/minepump_spec2_product63.cil.c [2021-10-28 23:55:04,301 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_657fa97b-c340-464d-afc1-2bde2b414160/bin/uautomizer-GMMbpWq8iD/data/b0286d221/566e1d9fea5b4fabac8ff5c0d3ee1699/FLAG67a7fc26a [2021-10-28 23:55:04,545 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_657fa97b-c340-464d-afc1-2bde2b414160/bin/uautomizer-GMMbpWq8iD/data/b0286d221/566e1d9fea5b4fabac8ff5c0d3ee1699 [2021-10-28 23:55:04,548 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:55:04,554 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:55:04,558 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:55:04,559 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:55:04,563 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:55:04,565 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:55:04" (1/1) ... [2021-10-28 23:55:04,566 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14900be5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:55:04, skipping insertion in model container [2021-10-28 23:55:04,567 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:55:04" (1/1) ... [2021-10-28 23:55:04,577 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:55:04,670 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:55:04,965 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_657fa97b-c340-464d-afc1-2bde2b414160/sv-benchmarks/c/product-lines/minepump_spec2_product63.cil.c[2985,2998] [2021-10-28 23:55:05,219 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:55:05,238 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:55:05,257 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_657fa97b-c340-464d-afc1-2bde2b414160/sv-benchmarks/c/product-lines/minepump_spec2_product63.cil.c[2985,2998] [2021-10-28 23:55:05,372 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:55:05,401 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:55:05,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:55:05 WrapperNode [2021-10-28 23:55:05,402 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:55:05,404 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:55:05,404 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:55:05,404 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:55:05,414 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:55:05" (1/1) ... [2021-10-28 23:55:05,437 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:55:05" (1/1) ... [2021-10-28 23:55:05,565 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:55:05,566 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:55:05,567 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:55:05,567 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:55:05,588 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:55:05" (1/1) ... [2021-10-28 23:55:05,588 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:55:05" (1/1) ... [2021-10-28 23:55:05,605 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:55:05" (1/1) ... [2021-10-28 23:55:05,606 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:55:05" (1/1) ... [2021-10-28 23:55:05,656 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:55:05" (1/1) ... [2021-10-28 23:55:05,695 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:55:05" (1/1) ... [2021-10-28 23:55:05,715 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:55:05" (1/1) ... [2021-10-28 23:55:05,725 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:55:05,726 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:55:05,730 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:55:05,730 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:55:05,732 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:55:05" (1/1) ... [2021-10-28 23:55:05,743 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:05,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_657fa97b-c340-464d-afc1-2bde2b414160/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:05,788 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_657fa97b-c340-464d-afc1-2bde2b414160/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:05,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_657fa97b-c340-464d-afc1-2bde2b414160/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 23:55:05,859 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:55:05,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:55:05,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:55:05,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:55:07,409 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:55:07,409 INFO L299 CfgBuilder]: Removed 354 assume(true) statements. [2021-10-28 23:55:07,413 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:55:07 BoogieIcfgContainer [2021-10-28 23:55:07,414 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:55:07,416 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 23:55:07,416 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 23:55:07,422 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 23:55:07,424 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:55:07,425 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 11:55:04" (1/3) ... [2021-10-28 23:55:07,427 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@225f633e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:55:07, skipping insertion in model container [2021-10-28 23:55:07,427 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:55:07,427 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:55:05" (2/3) ... [2021-10-28 23:55:07,428 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@225f633e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:55:07, skipping insertion in model container [2021-10-28 23:55:07,428 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:55:07,428 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:55:07" (3/3) ... [2021-10-28 23:55:07,430 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product63.cil.c [2021-10-28 23:55:07,508 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 23:55:07,508 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 23:55:07,508 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 23:55:07,508 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 23:55:07,509 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 23:55:07,509 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 23:55:07,509 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 23:55:07,509 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 23:55:07,548 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 228 states, 227 states have (on average 1.5110132158590308) internal successors, (343), 227 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:55:07,623 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 149 [2021-10-28 23:55:07,623 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:55:07,624 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:55:07,635 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:55:07,635 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:55:07,635 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 23:55:07,636 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 228 states, 227 states have (on average 1.5110132158590308) internal successors, (343), 227 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:55:07,650 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 149 [2021-10-28 23:55:07,650 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:55:07,650 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:55:07,652 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:55:07,652 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:55:07,659 INFO L791 eck$LassoCheckResult]: Stem: 221#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~string11.base, #t~string11.offset := #Ultimate.allocOnStack(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string13.base, #t~string13.offset, 1);call write~init~int(77, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(101, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(116, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(104, #t~string13.base, 4 + #t~string13.offset, 1);call write~init~int(58, #t~string13.base, 5 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 6 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string15.base, #t~string15.offset, 1);call write~init~int(82, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(73, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(84, #t~string15.base, 3 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 4 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(75, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string19.base, #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 1 + #t~string19.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(13);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string32.base, #t~string32.offset, 1);call write~init~int(110, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 2 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string34.base, #t~string34.offset, 1);call write~init~int(102, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(102, #t~string34.base, 2 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 3 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string36.base, #t~string36.offset, 1);call write~init~int(80, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(117, #t~string36.base, 2 + #t~string36.offset, 1);call write~init~int(109, #t~string36.base, 3 + #t~string36.offset, 1);call write~init~int(112, #t~string36.base, 4 + #t~string36.offset, 1);call write~init~int(58, #t~string36.base, 5 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 6 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string38.base, #t~string38.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string40.base, #t~string40.offset, 1);call write~init~int(102, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(102, #t~string40.base, 2 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 3 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string42.base, #t~string42.offset, 1);call write~init~int(32, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 2 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string44.base, #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 1 + #t~string44.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(21);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(21);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(30);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(9);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(25);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(30);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(9);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 147#L-1true havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 87#L661true 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; 88#L669true main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 78#L142true assume 0 != main_~tmp~0; 214#L113true ~methAndRunningLastTime~0 := 0; 46#L173true havoc test_#t~nondet20, test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 101#L184-1true [2021-10-28 23:55:07,659 INFO L793 eck$LassoCheckResult]: Loop: 101#L184-1true assume !false; 132#L326true assume test_~splverifierCounter~0 < 4; 124#L327true test_~tmp~2 := test_#t~nondet20;havoc test_#t~nondet20; 16#L335true assume !(0 != test_~tmp~2); 89#L335-1true test_~tmp___0~1 := test_#t~nondet21;havoc test_#t~nondet21; 100#L345true assume !(0 != test_~tmp___0~1); 65#L345-1true test_~tmp___2~0 := test_#t~nondet22;havoc test_#t~nondet22; 140#L355true assume 0 != test_~tmp___2~0; 122#L361-1true assume !(0 != ~pumpRunning~0); 68#L391true assume !(0 != ~systemActive~0); 216#L398true havoc __utac_acc__Specification2_spec__2_#t~ret8, __utac_acc__Specification2_spec__2_#t~ret9, __utac_acc__Specification2_spec__2_~tmp~1, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~1;havoc isMethaneLevelCritical_~retValue_acc~1;isMethaneLevelCritical_~retValue_acc~1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~1; 161#L254-5true __utac_acc__Specification2_spec__2_#t~ret8 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~1 := __utac_acc__Specification2_spec__2_#t~ret8;havoc __utac_acc__Specification2_spec__2_#t~ret8; 67#L184true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~1);~methAndRunningLastTime~0 := 0; 101#L184-1true [2021-10-28 23:55:07,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:55:07,667 INFO L85 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2021-10-28 23:55:07,679 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:55:07,680 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503893287] [2021-10-28 23:55:07,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:55:07,682 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:55:08,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:55:08,150 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:55:08,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:55:08,430 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:55:08,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:55:08,452 INFO L85 PathProgramCache]: Analyzing trace with hash 17744979, now seen corresponding path program 1 times [2021-10-28 23:55:08,453 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:55:08,453 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746967243] [2021-10-28 23:55:08,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:55:08,454 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:55:08,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:55:08,469 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:55:08,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:55:08,489 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:55:08,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:55:08,493 INFO L85 PathProgramCache]: Analyzing trace with hash 851041485, now seen corresponding path program 1 times [2021-10-28 23:55:08,493 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:55:08,494 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485530097] [2021-10-28 23:55:08,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:55:08,494 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:55:08,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:55:08,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:55:08,762 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:55:08,764 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485530097] [2021-10-28 23:55:08,764 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485530097] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:55:08,765 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:55:08,765 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 23:55:08,766 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773607065] [2021-10-28 23:55:08,960 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:55:08,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 23:55:08,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:55:08,984 INFO L87 Difference]: Start difference. First operand has 228 states, 227 states have (on average 1.5110132158590308) internal successors, (343), 227 states have internal predecessors, (343), 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) [2021-10-28 23:55:09,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:55:09,346 INFO L93 Difference]: Finished difference Result 502 states and 733 transitions. [2021-10-28 23:55:09,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 23:55:09,349 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 502 states and 733 transitions. [2021-10-28 23:55:09,359 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 327 [2021-10-28 23:55:09,373 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 502 states to 481 states and 712 transitions. [2021-10-28 23:55:09,375 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 481 [2021-10-28 23:55:09,377 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 481 [2021-10-28 23:55:09,378 INFO L73 IsDeterministic]: Start isDeterministic. Operand 481 states and 712 transitions. [2021-10-28 23:55:09,383 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:55:09,383 INFO L681 BuchiCegarLoop]: Abstraction has 481 states and 712 transitions. [2021-10-28 23:55:09,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states and 712 transitions. [2021-10-28 23:55:09,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 265. [2021-10-28 23:55:09,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 265 states have (on average 1.4754716981132074) internal successors, (391), 264 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:55:09,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 391 transitions. [2021-10-28 23:55:09,449 INFO L704 BuchiCegarLoop]: Abstraction has 265 states and 391 transitions. [2021-10-28 23:55:09,450 INFO L587 BuchiCegarLoop]: Abstraction has 265 states and 391 transitions. [2021-10-28 23:55:09,450 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 23:55:09,450 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 265 states and 391 transitions. [2021-10-28 23:55:09,454 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 180 [2021-10-28 23:55:09,454 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:55:09,455 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:55:09,456 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:55:09,456 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:55:09,457 INFO L791 eck$LassoCheckResult]: Stem: 968#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~string11.base, #t~string11.offset := #Ultimate.allocOnStack(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string13.base, #t~string13.offset, 1);call write~init~int(77, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(101, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(116, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(104, #t~string13.base, 4 + #t~string13.offset, 1);call write~init~int(58, #t~string13.base, 5 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 6 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string15.base, #t~string15.offset, 1);call write~init~int(82, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(73, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(84, #t~string15.base, 3 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 4 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(75, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string19.base, #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 1 + #t~string19.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(13);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string32.base, #t~string32.offset, 1);call write~init~int(110, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 2 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string34.base, #t~string34.offset, 1);call write~init~int(102, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(102, #t~string34.base, 2 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 3 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string36.base, #t~string36.offset, 1);call write~init~int(80, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(117, #t~string36.base, 2 + #t~string36.offset, 1);call write~init~int(109, #t~string36.base, 3 + #t~string36.offset, 1);call write~init~int(112, #t~string36.base, 4 + #t~string36.offset, 1);call write~init~int(58, #t~string36.base, 5 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 6 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string38.base, #t~string38.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string40.base, #t~string40.offset, 1);call write~init~int(102, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(102, #t~string40.base, 2 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 3 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string42.base, #t~string42.offset, 1);call write~init~int(32, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 2 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string44.base, #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 1 + #t~string44.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(21);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(21);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(30);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(9);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(25);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(30);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(9);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 937#L-1 havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 880#L661 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; 881#L669 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 872#L142 assume 0 != main_~tmp~0; 873#L113 ~methAndRunningLastTime~0 := 0; 830#L173 havoc test_#t~nondet20, test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 766#L184-1 [2021-10-28 23:55:09,457 INFO L793 eck$LassoCheckResult]: Loop: 766#L184-1 assume !false; 896#L326 assume test_~splverifierCounter~0 < 4; 921#L327 test_~tmp~2 := test_#t~nondet20;havoc test_#t~nondet20; 776#L335 assume !(0 != test_~tmp~2); 778#L335-1 test_~tmp___0~1 := test_#t~nondet21;havoc test_#t~nondet21; 882#L345 assume !(0 != test_~tmp___0~1); 794#L345-1 test_~tmp___2~0 := test_#t~nondet22;havoc test_#t~nondet22; 861#L355 assume 0 != test_~tmp___2~0; 919#L361-1 assume !(0 != ~pumpRunning~0); 775#L391 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret26, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 856#L475 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret25, processEnvironment__wrappee__methaneQuery_~tmp~4;havoc processEnvironment__wrappee__methaneQuery_~tmp~4; 857#L449-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret24, processEnvironment__wrappee__highWaterSensor_~tmp~3;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3; 901#L423-3 assume !(0 == ~pumpRunning~0); 772#L398 havoc __utac_acc__Specification2_spec__2_#t~ret8, __utac_acc__Specification2_spec__2_#t~ret9, __utac_acc__Specification2_spec__2_~tmp~1, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~1;havoc isMethaneLevelCritical_~retValue_acc~1;isMethaneLevelCritical_~retValue_acc~1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~1; 948#L254-5 __utac_acc__Specification2_spec__2_#t~ret8 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~1 := __utac_acc__Specification2_spec__2_#t~ret8;havoc __utac_acc__Specification2_spec__2_#t~ret8; 862#L184 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~1);~methAndRunningLastTime~0 := 0; 766#L184-1 [2021-10-28 23:55:09,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:55:09,458 INFO L85 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2021-10-28 23:55:09,459 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:55:09,459 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639913784] [2021-10-28 23:55:09,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:55:09,460 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:55:09,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:55:09,525 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:55:09,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:55:09,609 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:55:09,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:55:09,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1227870023, now seen corresponding path program 1 times [2021-10-28 23:55:09,610 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:55:09,610 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302318233] [2021-10-28 23:55:09,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:55:09,611 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:55:09,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:55:09,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:55:09,631 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:55:09,631 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302318233] [2021-10-28 23:55:09,632 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302318233] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:55:09,632 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:55:09,632 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:55:09,633 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596011257] [2021-10-28 23:55:09,633 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 23:55:09,633 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:55:09,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:55:09,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:55:09,635 INFO L87 Difference]: Start difference. First operand 265 states and 391 transitions. cyclomatic complexity: 129 Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:55:09,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:55:09,808 INFO L93 Difference]: Finished difference Result 262 states and 365 transitions. [2021-10-28 23:55:09,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:55:09,810 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 262 states and 365 transitions. [2021-10-28 23:55:09,814 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 182 [2021-10-28 23:55:09,818 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 262 states to 262 states and 365 transitions. [2021-10-28 23:55:09,818 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 262 [2021-10-28 23:55:09,819 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 262 [2021-10-28 23:55:09,819 INFO L73 IsDeterministic]: Start isDeterministic. Operand 262 states and 365 transitions. [2021-10-28 23:55:09,821 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:55:09,821 INFO L681 BuchiCegarLoop]: Abstraction has 262 states and 365 transitions. [2021-10-28 23:55:09,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states and 365 transitions. [2021-10-28 23:55:09,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 262. [2021-10-28 23:55:09,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 262 states have (on average 1.3931297709923665) internal successors, (365), 261 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:55:09,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 365 transitions. [2021-10-28 23:55:09,837 INFO L704 BuchiCegarLoop]: Abstraction has 262 states and 365 transitions. [2021-10-28 23:55:09,837 INFO L587 BuchiCegarLoop]: Abstraction has 262 states and 365 transitions. [2021-10-28 23:55:09,838 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 23:55:09,838 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 262 states and 365 transitions. [2021-10-28 23:55:09,841 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 182 [2021-10-28 23:55:09,841 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:55:09,841 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:55:09,842 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:55:09,843 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:55:09,843 INFO L791 eck$LassoCheckResult]: Stem: 1470#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~string11.base, #t~string11.offset := #Ultimate.allocOnStack(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string13.base, #t~string13.offset, 1);call write~init~int(77, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(101, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(116, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(104, #t~string13.base, 4 + #t~string13.offset, 1);call write~init~int(58, #t~string13.base, 5 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 6 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string15.base, #t~string15.offset, 1);call write~init~int(82, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(73, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(84, #t~string15.base, 3 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 4 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(75, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string19.base, #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 1 + #t~string19.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(13);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string32.base, #t~string32.offset, 1);call write~init~int(110, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 2 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string34.base, #t~string34.offset, 1);call write~init~int(102, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(102, #t~string34.base, 2 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 3 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string36.base, #t~string36.offset, 1);call write~init~int(80, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(117, #t~string36.base, 2 + #t~string36.offset, 1);call write~init~int(109, #t~string36.base, 3 + #t~string36.offset, 1);call write~init~int(112, #t~string36.base, 4 + #t~string36.offset, 1);call write~init~int(58, #t~string36.base, 5 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 6 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string38.base, #t~string38.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string40.base, #t~string40.offset, 1);call write~init~int(102, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(102, #t~string40.base, 2 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 3 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string42.base, #t~string42.offset, 1);call write~init~int(32, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 2 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string44.base, #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 1 + #t~string44.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(21);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(21);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(30);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(9);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(25);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(30);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(9);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 1388#L-1 havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 1389#L661 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; 1465#L669 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 1458#L142 assume 0 != main_~tmp~0; 1459#L113 ~methAndRunningLastTime~0 := 0; 1408#L173 havoc test_#t~nondet20, test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1409#L184-1 [2021-10-28 23:55:09,844 INFO L793 eck$LassoCheckResult]: Loop: 1409#L184-1 assume !false; 1535#L326 assume test_~splverifierCounter~0 < 4; 1534#L327 test_~tmp~2 := test_#t~nondet20;havoc test_#t~nondet20; 1533#L335 assume !(0 != test_~tmp~2); 1466#L335-1 test_~tmp___0~1 := test_#t~nondet21;havoc test_#t~nondet21; 1467#L345 assume !(0 != test_~tmp___0~1); 1348#L345-1 test_~tmp___2~0 := test_#t~nondet22;havoc test_#t~nondet22; 1365#L355 assume 0 != test_~tmp___2~0; 1313#L361-1 assume !(0 != ~pumpRunning~0); 1314#L391 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret26, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 1438#L475 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret25, processEnvironment__wrappee__methaneQuery_~tmp~4;havoc processEnvironment__wrappee__methaneQuery_~tmp~4; 1439#L449-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret24, processEnvironment__wrappee__highWaterSensor_~tmp~3;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3; 1455#L423-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret45, isHighWaterLevel_~retValue_acc~7, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~7;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~3;havoc isHighWaterSensorDry_~retValue_acc~3; 1367#L294-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~3 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~3; 1368#L299-3 isHighWaterLevel_#t~ret45 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret45;havoc isHighWaterLevel_#t~ret45; 1413#L594-9 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~2 := 0; 1414#L594-11 isHighWaterLevel_~retValue_acc~7 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~7; 1369#L600-3 processEnvironment__wrappee__highWaterSensor_#t~ret24 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~3 := processEnvironment__wrappee__highWaterSensor_#t~ret24;havoc processEnvironment__wrappee__highWaterSensor_#t~ret24; 1370#L427-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~3); 1342#L398 havoc __utac_acc__Specification2_spec__2_#t~ret8, __utac_acc__Specification2_spec__2_#t~ret9, __utac_acc__Specification2_spec__2_~tmp~1, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~1;havoc isMethaneLevelCritical_~retValue_acc~1;isMethaneLevelCritical_~retValue_acc~1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~1; 1541#L254-5 __utac_acc__Specification2_spec__2_#t~ret8 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~1 := __utac_acc__Specification2_spec__2_#t~ret8;havoc __utac_acc__Specification2_spec__2_#t~ret8; 1539#L184 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~1);~methAndRunningLastTime~0 := 0; 1409#L184-1 [2021-10-28 23:55:09,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:55:09,845 INFO L85 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2021-10-28 23:55:09,845 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:55:09,846 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668071659] [2021-10-28 23:55:09,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:55:09,846 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:55:09,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:55:09,911 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:55:09,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:55:10,020 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:55:10,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:55:10,021 INFO L85 PathProgramCache]: Analyzing trace with hash -1200754989, now seen corresponding path program 1 times [2021-10-28 23:55:10,021 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:55:10,022 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936014051] [2021-10-28 23:55:10,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:55:10,022 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:55:10,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:55:10,030 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:55:10,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:55:10,053 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:55:10,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:55:10,054 INFO L85 PathProgramCache]: Analyzing trace with hash -2067939431, now seen corresponding path program 1 times [2021-10-28 23:55:10,054 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:55:10,055 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379887587] [2021-10-28 23:55:10,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:55:10,055 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:55:10,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:55:10,112 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:55:10,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:55:10,208 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:56:39,585 WARN L207 SmtUtils]: Spent 1.48 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2021-10-28 23:58:30,467 WARN L207 SmtUtils]: Spent 55.37 s on a formula simplification that was a NOOP. DAG size: 435 [2021-10-28 23:58:30,729 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 11:58:30 BoogieIcfgContainer [2021-10-28 23:58:30,729 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 23:58:30,730 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:58:30,731 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:58:30,731 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:58:30,732 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:55:07" (3/4) ... [2021-10-28 23:58:30,736 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-28 23:58:30,834 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_657fa97b-c340-464d-afc1-2bde2b414160/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-28 23:58:30,834 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:58:30,837 INFO L168 Benchmark]: Toolchain (without parser) took 206281.60 ms. Allocated memory was 119.5 MB in the beginning and 178.3 MB in the end (delta: 58.7 MB). Free memory was 89.5 MB in the beginning and 69.7 MB in the end (delta: 19.8 MB). Peak memory consumption was 78.8 MB. Max. memory is 16.1 GB. [2021-10-28 23:58:30,837 INFO L168 Benchmark]: CDTParser took 0.44 ms. Allocated memory is still 119.5 MB. Free memory is still 75.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:58:30,839 INFO L168 Benchmark]: CACSL2BoogieTranslator took 844.22 ms. Allocated memory is still 119.5 MB. Free memory was 89.5 MB in the beginning and 85.0 MB in the end (delta: 4.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:58:30,840 INFO L168 Benchmark]: Boogie Procedure Inliner took 162.13 ms. Allocated memory is still 119.5 MB. Free memory was 85.0 MB in the beginning and 79.5 MB in the end (delta: 5.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-28 23:58:30,841 INFO L168 Benchmark]: Boogie Preprocessor took 158.53 ms. Allocated memory is still 119.5 MB. Free memory was 79.5 MB in the beginning and 75.3 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:58:30,842 INFO L168 Benchmark]: RCFGBuilder took 1687.82 ms. Allocated memory was 119.5 MB in the beginning and 144.7 MB in the end (delta: 25.2 MB). Free memory was 75.3 MB in the beginning and 84.5 MB in the end (delta: -9.3 MB). Peak memory consumption was 31.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:58:30,843 INFO L168 Benchmark]: BuchiAutomizer took 203314.11 ms. Allocated memory was 144.7 MB in the beginning and 178.3 MB in the end (delta: 33.6 MB). Free memory was 84.5 MB in the beginning and 71.8 MB in the end (delta: 12.7 MB). Peak memory consumption was 76.3 MB. Max. memory is 16.1 GB. [2021-10-28 23:58:30,844 INFO L168 Benchmark]: Witness Printer took 104.37 ms. Allocated memory is still 178.3 MB. Free memory was 71.8 MB in the beginning and 69.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:58:30,850 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44 ms. Allocated memory is still 119.5 MB. Free memory is still 75.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 844.22 ms. Allocated memory is still 119.5 MB. Free memory was 89.5 MB in the beginning and 85.0 MB in the end (delta: 4.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 162.13 ms. Allocated memory is still 119.5 MB. Free memory was 85.0 MB in the beginning and 79.5 MB in the end (delta: 5.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 158.53 ms. Allocated memory is still 119.5 MB. Free memory was 79.5 MB in the beginning and 75.3 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1687.82 ms. Allocated memory was 119.5 MB in the beginning and 144.7 MB in the end (delta: 25.2 MB). Free memory was 75.3 MB in the beginning and 84.5 MB in the end (delta: -9.3 MB). Peak memory consumption was 31.2 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 203314.11 ms. Allocated memory was 144.7 MB in the beginning and 178.3 MB in the end (delta: 33.6 MB). Free memory was 84.5 MB in the beginning and 71.8 MB in the end (delta: 12.7 MB). Peak memory consumption was 76.3 MB. Max. memory is 16.1 GB. * Witness Printer took 104.37 ms. Allocated memory is still 178.3 MB. Free memory was 71.8 MB in the beginning and 69.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 4.2 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 262 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 203.2s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 202.3s. Construction of modules took 0.3s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 216 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 265 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 573 SDtfs, 1795 SDslu, 1253 SDs, 0 SdLazy, 81 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s 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: 325]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=3506} State at position 1 is {NULL=0, NULL=3506, NULL=3508, NULL=0, NULL=3524, NULL=3531, methaneLevelCritical=0, NULL=3528, retValue_acc=1, tmp=0, NULL=0, NULL=3516, NULL=0, retValue_acc=0, tmp___1=0, NULL=0, NULL=3511, cleanupTimeShifts=4, NULL=3517, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7e9db5da=0, NULL=3509, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4c330ab1=0, waterLevel=1, NULL=0, NULL=0, NULL=3529, \result=1, head=0, pumpRunning=0, tmp=1, retValue_acc=1, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5a245240=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2e8789f9=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7ded87e8=54, \result=1, NULL=0, NULL=0, NULL=0, NULL=0, NULL=3518, NULL=0, tmp=1, NULL=0, NULL=3534, tmp___0=0, methAndRunningLastTime=0, NULL=3519, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2c01b698=0, head=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2669638e=0, tmp=0, NULL=3512, NULL=3532, tmp=0, NULL=3533, retValue_acc=0, retValue_acc=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@f3e260d=0, NULL=3514, tmp___0=0, NULL=0, NULL=0, NULL=3525, NULL=0, NULL=0, tmp=0, NULL=3507, NULL=0, systemActive=1, NULL=3526, NULL=0, \result=0, NULL=3520, \result=0, NULL=0, NULL=3510, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@401678f7=0, NULL=0, tmp___0=0, NULL=3515, NULL=3527, NULL=3523, tmp___2=54, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@22a0443c=0, splverifierCounter=0, NULL=0, \result=0, NULL=3522, NULL=3530, NULL=3521, tmp=0, NULL=3513, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7ed11852=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L50] int cleanupTimeShifts = 4; [L167] int methAndRunningLastTime ; [L211] int waterLevel = 1; [L212] int methaneLevelCritical = 0; [L384] int pumpRunning = 0; [L385] int systemActive = 1; [L843] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L133] int retValue_acc ; [L134] int tmp ; [L665] int retValue_acc ; [L668] retValue_acc = 1 [L669] return (retValue_acc); [L140] tmp = valid_product() [L142] COND TRUE \read(tmp) [L172] methAndRunningLastTime = 0 [L316] int splverifierCounter ; [L317] int tmp ; [L318] int tmp___0 ; [L319] int tmp___1 ; [L320] int tmp___2 ; [L323] splverifierCounter = 0 Loop: [L325] COND TRUE 1 [L327] COND TRUE splverifierCounter < 4 [L333] tmp = __VERIFIER_nondet_int() [L335] COND FALSE !(\read(tmp)) [L343] tmp___0 = __VERIFIER_nondet_int() [L345] COND FALSE !(\read(tmp___0)) [L353] tmp___2 = __VERIFIER_nondet_int() [L355] COND TRUE \read(tmp___2) [L391] COND FALSE !(\read(pumpRunning)) [L398] COND TRUE \read(systemActive) [L472] int tmp ; [L475] COND FALSE !(\read(pumpRunning)) [L446] int tmp ; [L449] COND FALSE !(\read(pumpRunning)) [L420] int tmp ; [L423] COND TRUE ! pumpRunning [L586] int retValue_acc ; [L587] int tmp ; [L588] int tmp___0 ; [L291] int retValue_acc ; [L294] COND TRUE waterLevel < 2 [L295] retValue_acc = 1 [L296] return (retValue_acc); [L592] tmp = isHighWaterSensorDry() [L594] COND TRUE \read(tmp) [L595] tmp___0 = 0 [L599] retValue_acc = tmp___0 [L600] return (retValue_acc); [L425] tmp = isHighWaterLevel() [L427] COND FALSE !(\read(tmp)) [L177] int tmp ; [L178] int tmp___0 ; [L250] int retValue_acc ; [L253] retValue_acc = methaneLevelCritical [L254] return (retValue_acc); [L182] tmp = isMethaneLevelCritical() [L184] COND FALSE !(\read(tmp)) [L200] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-28 23:58:30,993 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_657fa97b-c340-464d-afc1-2bde2b414160/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...